Adhesive article

Abstract

To provide an adhesive article which can secure good holding force when being applied to a wall, and can be peeled while reducing or suppressing an adhesive residue on and damage to the wall, when being peeled from the wall.SOLUTION: An adhesive article includes: an adhesive layer; a non-woven fabric layer which is arranged on the adhesive layer and contains a thermoplastic resin; and a film layer which is arranged on a side opposite to the adhesive layer on the non-woven fabric layer, and contains a thermoplastic resin. The adhesive layer and the non-woven fabric layer form an embossed pattern.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to adhesive articles. [Background technology]

[0002] Patent Document 1 (JP 2020-531641 A) describes "an adhesive article for attaching an object to a surface, comprising: a first adhesive layer; a core adjacent to the first adhesive layer and defining a periphery, the core comprising a core material and comprising a first main surface and a second main surface; a first arrangement pattern of recesses on at least the first main surface of the core, each recess terminating in a film comprising a core material; and an adhesive interface on a bottom wall surface, the adhesive interface including contact between the first adhesive layer and the film."

[0003] Patent Document 2 (WO 2022 / 224081) describes a pressure-sensitive adhesive sheet having a first release liner with a fluorine-based release layer or a non-fluorine-based and non-silicone-based release layer, a first pressure-sensitive adhesive layer containing modified silicone, and a basis weight of 12 g / m 2 The document describes a wallpaper laminate comprising, in that order, the above nonwoven fabric layer, a second pressure-sensitive adhesive layer containing modified silicone, and a second release liner having a fluorine-based release layer or a non-fluorine-based and non-silicone-based release layer, the first pressure-sensitive adhesive layer having an embossed pattern, and which is applicable to and removable from wallpaper. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special table number 2020-531641 [Patent Document 2] International Publication No. 2022 / 224081 Summary of the Invention

[0005] An adhesive article according to one embodiment of the present disclosure comprises a pressure-sensitive adhesive layer, a nonwoven fabric layer containing a thermoplastic resin disposed on the pressure-sensitive adhesive layer, and a film layer containing a thermoplastic resin disposed on the nonwoven fabric layer on the opposite side of the pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer and the nonwoven fabric layer form an embossed pattern. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a schematic cross-sectional view of an exemplary adhesive article according to a first embodiment of the present disclosure. [Diagram 2] FIG. 1 is a schematic cross-sectional view showing an example of an exemplary adhesive article according to a first embodiment of the present disclosure, in which only one side is embossed. [Diagram 3] FIG. 2 is a schematic cross-sectional view showing an example of an exemplary adhesive article according to a first modified example of the first embodiment of the present disclosure, in which both surfaces are embossed. [Figure 4] FIG. 11 is a schematic cross-sectional view showing an example of an exemplary adhesive article according to a second modified example of the first embodiment of the present disclosure, in which both surfaces are embossed. [Diagram 5] FIG. 2 is a schematic diagram showing an example of an adhesive article according to the present disclosure being peeled off from a wall. [Figure 6] FIG. 2 is a schematic cross-sectional view of an exemplary adhesive article according to a second embodiment of the present disclosure. [Figure 7] FIG. 1 is a schematic cross-sectional view of an exemplary adhesive article according to a first variant of the second embodiment of the present disclosure. [Figure 8] FIG. 11 is a schematic cross-sectional view of an exemplary adhesive article according to a second variant of the second embodiment of the present disclosure. [Figure 9] FIG. 2 is a schematic cross-sectional view of an exemplary adhesive article according to a third embodiment of the present disclosure. [Figure 10] FIG. 11 is a schematic cross-sectional view of an exemplary adhesive article according to a first variant of the third embodiment of the present disclosure. [Figure 11] FIG. 11 is a schematic cross-sectional view of an exemplary adhesive article according to a second variant of the third embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] There has been a demand for further improvements in wallpaper laminates that can ensure good holding power when applied to a wall, and that can be peeled off while reducing or suppressing adhesive residue and damage to the wall when peeled off from the wall. As a result of extensive research, the inventors have reached the following findings.

[0008] It is desirable for the adhesive layer on the wall side to have a specific configuration (composition, structure, etc.) in order to ensure good holding power when applied to a wall (including wallpaper as well as other adherend surfaces such as painted surfaces, the same applies below) and to peel the adhesive off while reducing or suppressing adhesive residue and damage to the wall when peeled off from the wall. On the other hand, such a specific configuration may not be required for the adhesive layer on the opposite side (article side) (the adhesive layer on the side of the article to be adhered to the wall). In order to ensure good holding power, it is also conceivable to use different types of adhesive on both sides, from the viewpoint of selecting an appropriate adhesive depending on the properties of the adherend surface.

[0009] However, when the adhesive layer on the wall side and the adhesive layer on the opposite side are made of different adhesive compositions, the performance may be reduced. As a result of the investigation, it was found that such a phenomenon can be alleviated by making the nonwoven fabric layer contain a thermoplastic resin and disposing a film layer containing a thermoplastic resin between the adhesives on both sides. It was suggested that the decrease in performance when the adhesive layer on the wall side and the adhesive layer on the opposite side are made of different adhesive compositions is due to the adhesives on both sides diffusing or penetrating through the nonwoven fabric layer between them and interacting with each other. By physically isolating the nonwoven fabric layer and the adhesive layer on one side and disposing a barrier layer that suppresses contact between the adhesive contained in the adhesive layer on the wall side and the adhesive contained in the adhesive layer on the opposite side through the nonwoven fabric layer, the freedom of selection of the composition of the two adhesive layers is improved.

[0010] Furthermore, even if a film layer containing a thermoplastic resin is placed on the nonwoven fabric layer on the opposite side of the adhesive layer, and a second adhesive layer is not placed on the film layer, there is no interaction between the two types of adhesives, and therefore performance degradation is reduced.

[0011] According to the present disclosure, even when the laminate is peeled off in a direction approximately perpendicular to the adhesive surface of a wall or the like, adhesive residue and / or damage to the wall can be reduced or suppressed, providing the advantage of enabling intuitive use.

[0012] Note that the above merely explains how the present disclosure was arrived at, and is not intended to limit the scope of the claims.

[0013] Hereinafter, for the purpose of illustrating typical embodiments of the present invention, a more detailed description will be given with reference to the drawings as necessary; however, the present invention is not limited to these embodiments.

[0014] In the present disclosure, "applicable to walls and removable" means that when the adhesive article is attached to a wall (including wallpaper and other adherend surfaces such as painted surfaces, the same applies below) via the first adhesive layer, the adhesive article is held without peeling off the wall while exerting a desired holding force, and when the adhesive article is peeled off from the wall, no adhesive remains on the wall after peeling, and the article can be peeled off while reducing or suppressing damage to the wall. In one embodiment, "removable" can mean that the article can be peeled off without using a special tool and with a moderate force (for example, the force of an adult woman) without damaging the wall. In addition, "wall" in the present disclosure includes any adherend surface for which adhesive residue and damage should be reduced or suppressed, unless otherwise specified.

[0015] In the present disclosure, the term "sea-island structure" refers not only to a structure in which discontinuous non-embossed portions that become islands are arranged within a continuous embossed portion that becomes a sea portion, but also to a structure in which there are at least two embossed portions (sea portions) that are linearly or non-linearly continuous in at least one direction, and a non-embossed portion (island portion) is arranged between these embossed portions.

[0016] In this disclosure, "(meth)acrylic" means acrylic or methacrylic, and "(meth)acrylate" means acrylate or methacrylate.

[0017] In the present disclosure, "non-fluorine-based and non-silicone-based" means that the material used is non-fluorine-based and non-silicone-based. In other words, it means that the material used is neither a fluorine-based material nor a silicone-based material.

[0018] In the present disclosure, "curing" can also include a concept generally referred to as "crosslinking."

[0019] In the present disclosure, the term "film" also encompasses an article called a "sheet."

[0020] In this disclosure, the term "approximately" means including variations that occur due to manufacturing errors and the like, and is intended to allow for a variation of about ±20%.

[0021] In the present disclosure, the numerical range "X to Y" (X and Y are numerical values) in principle includes the end points X and Y, but may also exclude the end points X and Y by explicitly stating this in the claims.

[0022] In the present disclosure, for example, "on" in "a nonwoven fabric layer disposed on a first pressure-sensitive adhesive layer" means that the nonwoven fabric layer is disposed directly on (so as to be in physical contact with) the first pressure-sensitive adhesive layer, or that the nonwoven fabric layer is disposed indirectly above (so as not to be in physical contact with) the first pressure-sensitive adhesive layer via another layer.

[0023] In the present disclosure, a value described as the upper limit of any numerical range may be adopted as the lower limit, and a value described as the lower limit of any numerical range may be adopted as the upper limit.

[0024] (First embodiment) Fig. 1 is a schematic cross-sectional view of an exemplary adhesive article 100 according to a first embodiment of the present disclosure, in which the embossed pattern is omitted.

[0025] 1, an adhesive article 100 includes a first adhesive layer 10, a nonwoven fabric layer 12 containing a thermoplastic resin disposed on the first adhesive layer 10, and a film layer 14 containing a thermoplastic resin disposed on the nonwoven fabric layer 12 on the opposite side of the first adhesive layer 10. The first adhesive layer 10 and the nonwoven fabric layer 12 form an embossed pattern. The embossing can be performed by applying heat and pressure.

[0026] In the adhesive article 100, the first pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12, and the nonwoven fabric layer 12 and the film layer 14 may be in physical contact with each other. The first pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12, and the nonwoven fabric layer 12 and the film layer 14 may each have the same size and shape in a plan view.

[0027] Fig. 2 is a schematic cross-sectional view showing an example of an exemplary adhesive article according to the first embodiment of the present disclosure in a state where only one side is embossed. In the adhesive article shown in Fig. 2, the pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12 are deformed by embossing, and further, the film layer 14 may be deformed by embossing only on one side together with the first pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12.

[0028] The melting point of the nonwoven fabric layer 12 may be lower than the melting point of the film layer 14. Specifically, for example, the melting point of the first thermoplastic resin constituting the nonwoven fabric layer 12 may be lower than the melting point of the second thermoplastic resin constituting the film layer 14.

[0029] In such a configuration, for example, when heated during embossing, the nonwoven fabric layer 12 melts faster or at a greater rate than the film layer 14, resulting in adhesion between the pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12, and between the nonwoven fabric layer 12 and the film layer 14. Meanwhile, melting of the film layer 14 is reduced. As a result, adhesion between the pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12, and between the nonwoven fabric layer 12 and the film layer 14 is improved.

[0030] The film layer 14 may be an ink-receiving layer or may be a display portion for an image or the like. An ink-receiving layer may be disposed on the film layer 14. The ink-receiving layer may be formed by coating or the like. The ink-receiving layer may be formed of polyvinyl alcohol, pseudoboehmite, or the like (References: Japanese Patent Nos. 3213267 and 2936631). When the film layer is used as the ink-receiving layer, it may be formed of a material with high ink receptivity, such as thermoplastic polyurethane (Reference: Japanese Patent No. 6502265).

[0031] A second adhesive layer may be placed on top of film layer 14 to form a double-sided adhesive article.

[0032] In this embodiment, the interaction between the two types of adhesives does not occur or is reduced, so that the performance degradation of the adhesive article is reduced. Specifically, for example, in an embodiment in which the second adhesive layer is not arranged on the opposite side of the first adhesive layer with the film layer 14 sandwiched therebetween, the adhesive is arranged only on one side of the substrate (nonwoven fabric layer and film layer), so that the interaction between the two types of adhesives does not occur. In an embodiment in which the second adhesive layer is arranged on the opposite side of the first adhesive layer with the film layer 14 sandwiched therebetween, the film layer functions as a barrier layer, so that the interaction between the two types of adhesives arranged on both sides of the substrate (nonwoven fabric layer and film layer) is reduced.

[0033] [Adhesive layer] In some embodiments, the adhesive layer 10 is intended to be applied to wallpaper. The first adhesive used in the adhesive layer 10 is not particularly limited. The first adhesive may be the same as or different from the second adhesive used in the second adhesive layer 16. The first adhesive layer may be applicable to and removable from the wallpaper.

[0034] The adhesives being different includes, for example, a configuration in which the adhesive materials are different, such as a first adhesive containing a silicone polyurea block copolymer and a second adhesive containing a silicone polyoxamide block copolymer, as well as a configuration in which the first adhesive and the second adhesive both contain a silicone polyurea block copolymer but have different adhesive strengths.

[0035] In one embodiment, the first adhesive and the second adhesive are made of the same material to prevent the risk of product defects due to incorrect adhesive surfaces. In addition, when different adhesives are used for the first adhesive and the second adhesive, for example, the second release liner can be peeled off first, and the second adhesive that appears by peeling off the second release liner can be the adhesive surface that comes into contact with hooks, posters, etc., taking into consideration the actual use of the obtained laminate. In this case, the peel strength or adhesive strength of the second adhesive can be designed to be lower than the peel strength or adhesive strength of the first adhesive (the adhesive surface that comes into contact with wallpaper).

[0036] Hereinafter, the first adhesive and the second adhesive will be collectively described as "adhesives", but the first adhesive and the second adhesive are applied independently of each other. Also, for example, characteristics specified in relation to wallpaper may be particularly suitable for the first adhesive intended to be applied to wallpaper.

[0037] In some embodiments, the adhesive is removable.

[0038] In some embodiments, the adhesive may be prepared using, for example, one or more thermoplastic elastomers in combination with one or more adhesive resins. The first adhesive may include at least one of rubber, silicone, or acrylic adhesives. The first adhesive may include tackified rubber adhesives such as natural rubber; olefins; silicones such as silicone polyurea or silicone block copolymers; synthetic rubber adhesives such as polyisoprene, polybutadiene, and styrene-isoprene-styrene copolymers, styrene-ethylene-butylene-styrene copolymers, and styrene-butadiene-styrene block copolymers, and other synthetic elastomers; and tackified or non-tackified acrylic adhesives such as copolymers of isooctyl acrylate and acrylic acid that can be polymerized by radiation, solution, suspension, or emulsion methods; polyurethanes; silicone block copolymers; and combinations of the above.

[0039] In certain embodiments, the adhesive can be reinforced with a fiber or fiber scrim, which can include inorganic and / or organic fibers. Suitable fiber scrims can include woven, nonwoven, or knit webs or scrims. For example, the fibers in the scrim can include wire, ceramic fibers, glass fibers (e.g., fiberglass), and organic fibers (e.g., natural and / or synthetic organic fibers).

[0040] In some embodiments, the adhesive comprises a tackifier. Some exemplary tackifiers include at least one of a polyterpene, a terpene phenol, a rosin ester, and / or a rosin acid.

[0041] In some embodiments, the adhesive is a flowable adhesive that can be coated onto a backing.

[0042] In some embodiments, the adhesive has a Tg of about -125°C to about 20°C as measured by dynamic mechanical analysis of tan δ peak value. In some embodiments, the adhesive has a Tg of about -70°C to about 0°C. In some embodiments, the adhesive has a Tg of about -60°C to about -20°C. In some embodiments, the adhesive has a Tg of -80°C to 20°C, -70°C to 10°C, -60°C to 0°C, -50°C to -10°C, -40°C to -20°C, -40°C to -30°C, or -30°C to -20°C.

[0043] In some embodiments, the elastic modulus of the pressure-sensitive adhesive at −20° C. is about 2×10 5 Pa ~ approx. 7×10 7 Pa, about 5×10 5 Pa ~ approx. 3×10 7 Pa, or about 1 x 10 6 Pa ~ approx. 2×10 7 The elastic modulus is measured using a viscoelasticity measuring device Discovery HR2 (manufactured by TA Instrument, Delaware, USA) under the conditions of a parallel plate of φ8 mm, a heating rate of 3°C / min, a measurement temperature range of -65°C to 150°C, and a frequency of 1 Hz (6.28 radians / sec).

[0044] In some embodiments, the thickness of the adhesive is from about 1 μm to about 1 mm.

[0045] In some embodiments, the adhesive properties may range from 0.1 N / dm to 25 N / dm. In some embodiments, the adhesive properties may range from 0.5 N / dm to 10 N / dm. In some embodiments, the adhesive properties may range from 1 It can range from N / dm to 5N / dm.

[0046] In some embodiments, the adhesive can provide a shear strength of, for example, 1 to 20 pounds per square inch as measured by ASTM test method D3654M-06.

[0047] In some embodiments, the adhesive comprises modified silicone. The surface of wallpaper is formed from a variety of materials (for example, polyvinyl chloride resin or polyolefin resin that generally contains a plasticizer), and the adhesive comprising modified silicone can be applied to wallpaper made of such a variety of materials, and is particularly effective in removing the adhesive from the wallpaper without leaving any adhesive residue or causing damage such as tearing.

[0048] In the present disclosure, the term "modified silicone" refers to a silicone in which a functional group (e.g., a functional group having a urethane structure) is added to the silicone main chain. The modified silicone may be used alone or in combination of two or more kinds.

[0049] Further details regarding modified silicones and pressure sensitive adhesives containing the same can be found, for example, in International Publication No. WO 2022 / 224081, the entire contents of which are incorporated herein by reference.

[0050] The pressure-sensitive adhesive layer of the present disclosure can contain, as optional components, antioxidants, ultraviolet absorbers, light stabilizers, heat stabilizers, dispersants, plasticizers, flow improvers, surfactants, leveling agents, silane coupling agents, catalysts, anti-infective agents, fillers, crosslinking agents, pigments, dyes, and the like, within the scope that does not impair the effects of the present disclosure.

[0051] In some embodiments, the adhesive, in addition to the configurations described herein, may be further tailored to achieve no or minimal damage release. Exemplary methods and articles for doing so are described, for example, in U.S. Pat. No. 6,835,452, WO 2018 / 039584, and WO 2017 / 136188, each of which is incorporated herein in its entirety.

[0052] [Nonwoven fabric layer] The nonwoven fabric layer of the present disclosure has a thickness of about 12 g / m from the viewpoint of a balance between application to wallpaper, peelability, and retention of the member. 2 In one embodiment, the nonwoven layer may have a basis weight of about 15 g / m2 ~about 260g / m 2 , about 20g / m 2 ~about 230g / m 2 , about 25g / m 2 ~about 200g / m 2 , about 30g / m 2 ~about 150g / m 2 , about 35g / m 2 ~Approx. 130g / m 2 , about 40g / m 2 ~Approx. 130g / m 2 , about 50g / m 2 ~Approx. 130g / m 2 , about 55g / m 2 ~Approx. 130g / m 2 , about 60g / m 2 ~Approx. 130g / m 2 , or about 70 g / m 2 ~Approx. 130g / m 2 Basis weight is calculated from the weight of a 10 cm x 10 cm sample.

[0053] In some embodiments, the nonwoven layer comprises a nonwoven substrate. The nonwoven substrate can be a nonwoven fabric or web made by any of the commonly known processes for making nonwoven fabrics or webs. In this disclosure, "nonwoven" refers to a fabric having a structure of individual fibers or filaments randomly and / or unidirectionally organized in a mat, but not of identifiable nature as in knitted fabrics.

[0054] Nonwoven fabrics or nonwoven webs can be formed by a variety of processes, such as meltblown, spunbond, spunlace, bonded carded web, airlaying, and wetlaying processes. In some embodiments, the nonwoven layer comprises a multi-layer nonwoven material, for example, having at least one layer of meltblown nonwoven and at least one layer of spunbond nonwoven, or any other suitable combination of nonwoven materials. For example, the nonwoven layer may be a spunbond-meltbond-spunbond, spunbond-spunbond, or spunbond-spunbond-spunbond multi-layer material. In one embodiment, a long fiber nylon spunbond nonwoven, a polyester spunbond nonwoven, or a polyolefin spunbond nonwoven is used.

[0055] In this disclosure, "meltblown" refers to a method for forming a nonwoven fibrous web by extruding molten fiber-forming material through multiple orifices in a die and contacting the fibers with air or other damping fluid as they form to attenuate the fibers into filaments and then collecting the attenuated fibers. An exemplary meltblown process is taught, for example, in U.S. Patent No. 6,607,624 (Berrigan et al.). "Meltblown fibers" refers to meltblown or fibers made by the meltblown process.

[0056] In this disclosure, "spunbonding" and "spunbond process" refer to a method for forming a nonwoven fibrous web by extruding molten fiber-forming material as continuous or semi-continuous fibers from a plurality of fine capillaries of a spinneret and then collecting the attenuated fibers. An exemplary spunbonding process is disclosed, for example, in U.S. Pat. No. 3,802,817 (Matsuki et al.). "Spunbond fiber" and "spunbonded fiber" refer to fibers produced using a spunbonding or spunbond process. Such fibers are generally continuous fibers and are sufficiently entangled or point-bonded to form a cohesive nonwoven fibrous web that it is usually not possible to extract one complete spunbond fiber from a mass of such fibers. The fibers may have shapes such as those described, for example, in U.S. Pat. No. 5,277,976 (Hogle et al.), which describes fibers having non-conventional shapes.

[0057] In this disclosure, "carding" and "card process" refer to a process for forming a nonwoven fibrous web by processing staple fibers through a combing or carding unit, which separates or breaks up the staple fibers and aligns them in the machine direction to form a generally machine-oriented fibrous nonwoven web. Exemplary carding processes and carding machines are taught, for example, in U.S. Patent Nos. 5,114,787 (Chaplin et al.) and 5,643,397.

[0058] In this disclosure, "bonded carded web" refers to a nonwoven fibrous web formed by a carding process, where at least a portion of the fibers are bonded together by methods including, for example, thermal point bonding, autogenous bonding, hot air bonding, ultrasonic bonding, needle punching, calendaring, application of spray adhesives, etc. Further details regarding the manufacture and properties of nonwoven webs and laminates comprising nonwoven webs can be found, for example, in U.S. Pat. No. 9,469,091 (Henke et al.), which is incorporated herein by reference in its entirety.

[0059] In this disclosure, "air laying" refers to a process in which bundles of small fibers having a typical length of about 3 to about 52 millimeters (mm) are separated and entrained in an air supply, and then typically deposited on a forming screen with the aid of a vacuum supply. The randomly oriented fibers may then be bonded to one another using, for example, thermal point bonding, autogenous bonding, hot air bonding, needle punching, calendaring, spray adhesives, and the like. An exemplary air laying process is taught, for example, in U.S. Patent No. 4,640,810 (Laursen et al.).

[0060] In this disclosure, "wet laying" refers to a process in which bundles of small fibers having a typical length of about 3 to about 52 millimeters (mm) are separated and entrained in a liquid feed and then deposited, usually on a forming screen with the aid of a vacuum feed. Water is typically the available liquid. The randomly deposited fibers may be further entangled (e.g., hydroentangled) or bonded to one another using, for example, thermal point bonding, autogenous bonding, hot air bonding, ultrasonic bonding, needle punching, calendaring, application of spray adhesives, and the like. Exemplary wet laying and bonding processes are taught, for example, in U.S. Pat. No. 5,167,765 (Nielsen et al.). Exemplary bonding processes are also disclosed, for example, in U.S. Pat. No. 9,139,940 (Berrigan et al.).

[0061] The fibrous materials that provide useful nonwoven layers can be made of natural fibers (eg, wood or cotton fibers), synthetic fibers (eg, thermoplastic fibers), or a combination of natural and synthetic fibers.

[0062] Exemplary materials for forming the thermoplastic fibers include polyolefins (eg, polyethylene, polypropylene, polybutylene, ethylene copolymers, propylene copolymers, butylene copolymers, and copolymers and blends of these polymers), polyesters, and polyamides.

[0063] The nonwoven substrate that constitutes the nonwoven layer can be formed from fibers or filaments made of any suitable thermoplastic polymeric material, including, but not limited to, polyolefins, polyisoprene, polybutadiene, fluorinated polymers, chlorinated polymers, polyamides, polyimides, polyethers, polyethersulfones, polysulfones, polyvinyl acetate, copolymers of vinyl acetate such as polyethylene-co-polyvinyl alcohol, polyphosphazenes, polyvinyl esters, polyvinyl ethers, polyvinyl alcohols, and polycarbonates.

[0064] Suitable polyolefins include, but are not limited to, polyethylene, polypropylene, poly 1-butene, copolymers of ethylene and propylene, alpha-olefin copolymers (such as copolymers of ethylene or propylene with 1-butene, 1-hexene, 1-octene, and 1-decene), polyethylene-co-1-butene, and polyethylene-co-1-butene-co-1-hexene.

[0065] Suitable fluorinated polymers include, but are not limited to, polyvinyl fluoride, polyvinylidene fluoride, copolymers of vinylidene fluoride (such as polyvinylidene fluoride-co-hexafluoropropylene), and copolymers of chlorotrifluoroethylene (such as polyethylene-co-chlorotrifluoroethylene).

[0066] Suitable polyamides include, but are not limited to, polyiminoadipoyliminohexamethylene, polyiminoadipoyliminodecamethylene, and polycaprolactam.Suitable polyimides include polypyromellitimide.

[0067] Suitable polyethersulfones include, but are not limited to, polydiphenylethersulfone and polydiphenylsulfone-co-diphenyleneoxidesulfone.

[0068] Suitable copolymers of vinyl acetate include, but are not limited to, polyethylene-co-vinyl acetate and copolymers in which at least some of the acetate groups are hydrolyzed to produce various polyvinyl alcohols, such as polyethylene-co-vinyl alcohol.

[0069] The fibers may be multicomponent fibers, for example, having a core of one thermoplastic material and a sheath of another thermoplastic material. The sheath may melt at a lower temperature than the core, providing partially random bonds between the fibers when the mat of fibers is exposed to the sheath melt. A combination of monocomponent fibers with different melting points may also be useful for this purpose.

[0070] In some embodiments, the nonwoven fabric or nonwoven web useful for the nonwoven layer according to the present disclosure is at least partially elastic. Examples of polymers for making elastic fibers include thermoplastic elastomers such as ABA block copolymers, polyurethane elastomers, polyolefin elastomers (e.g., metallocene polyolefin elastomers), olefin block copolymers, polyamide elastomers, ethylene vinyl acetate elastomers, and polyester elastomers. ABA block copolymer elastomers are generally elastomers in which the A block is polystyrenic and the B block is prepared from a conjugated diene (e.g., a lower alkylene diene). The A block is generally formed primarily from substituted (e.g., alkylated) or unsubstituted styrenic moieties (e.g., polystyrene, poly(alpha methyl styrene), or poly(t-butyl styrene)) and has a number average molecular weight of about 4,000 to 50,000 grams per mole. The B block is generally formed predominantly from conjugated dienes (e.g., isoprene, 1,3-butadiene, or ethylene-butylene monomers) that may be substituted or unsubstituted, and has a number average molecular weight of about 5,000 to 500,000 grams per mole. The A and B blocks may be configured, for example, in a linear, radial, or star configuration. ABA block copolymers may contain multiple A and / or B blocks, which may be made from the same or different monomers. Typical block copolymers are linear ABA block copolymers, where the A blocks may be the same or different, or block copolymers with four or more blocks that terminate primarily in A blocks. Multiblock copolymers may contain a certain percentage of AB diblock copolymers, which tend to form, for example, more tacky elastomeric film segments. Other elastomeric polymers may be blended with the block copolymer elastomer, and various elastomeric polymers may be blended to have various degrees of elastomeric properties.Numerous types of thermoplastic elastomers are commercially available, including those sold under the tradename "STYROFLEX™" by BASF (Florham Park, NJ), those sold under the tradename "KRATON™" by Kraton™ Polymers (Houston, Tex.), those sold under the tradename "PELLETHANE™", "INFUSE™", "VERSIFY™", or "NORDEL™" by Dow Chemical (Midland, Mich.), those sold under the tradename "ARNITEL™" by DSM (Heerlen, Netherlands), those sold under the tradename "HYTREL™" by EI duPont de Nemours and Company (Wilmington, Del.), those sold under the tradename "VISTAMAXX™" by ExxonMobil (Irving, Tex.), and others.

[0071] For example, the nonwoven webs may be made by carding, airlaid, wetlaid, spunlace, spunbond, electrospinning, or meltblowing processes such as meltspun or meltblown, or combinations thereof. Any of the nonwoven webs may be made from a single type of fiber or two or more fibers differing in thermoplastic polymer type, shape, and / or thickness, and at least one of the single fiber type or multiple fiber types may each be a multicomponent fiber as described above.

[0072] Staple fibers may also be present in the web. The presence of staple fibers generally results in a web with higher loft and lower density than a web of meltblown microfibers alone. A web with higher loft may have lower cohesion at the interface of the nonwoven layer or in the bulk of the nonwoven layer itself, making it easier to separate from one or more adhesive layers.

[0073] The nonwoven layer may optionally further comprise one or more layers of scrim. For example, either or both of the major surfaces of the nonwoven layer may each optionally further comprise a scrim layer. A scrim is a woven or nonwoven reinforcement material typically made from fibers and included in nonwoven articles to provide strength. Suitable scrim materials include, but are not limited to, nylon, polyester, fiberglass, polyethylene, polypropylene, and the like. The average thickness of the scrim may vary. The layer of scrim may optionally be bonded to the nonwoven substrate. Various adhesives may be used to bond the scrim to the nonwoven substrate. Alternatively, the scrim may be thermally bonded to the nonwoven.

[0074] Useful nonwoven layers can have any suitable effective fiber diameter (EFD) desired for a particular application. In this disclosure, "effective fiber diameter" refers to the apparent diameter of the fibers in a fibrous web based on air permeability testing, in which air at 1 atmosphere and room temperature is forced through a web sample at a specified thickness and face velocity (5.3 cm / sec) and the corresponding pressure drop is measured. Based on the measured pressure drop, the effective fiber diameter is calculated as described in Davies, CN, The Separation of Airborne Dust and Particulates, Institution of Mechanical Engineers, London Proceedings, 1B (1952). In some embodiments, the fibers of the nonwoven substrate have an effective fiber diameter of about 0.1 micrometer to about 125 micrometers, about 1 micrometer to about 75 micrometers, about 2 micrometers to about 50 micrometers, or about 4 micrometers to about 35 micrometers, about 4 micrometers to about 25 micrometers, about 4 micrometers to about 20 micrometers, about 4 micrometers to about 15 micrometers, about 4 micrometers to about 10 micrometers, about 4 micrometers to about 8 micrometers, or about 6 micrometers. For example, spunbond nonwoven layers typically have an effective fiber diameter of about 35 micrometers or less, while airlaid nonwoven layers can have an effective fiber diameter as large as 100 micrometers.

[0075] The loft (bulk) of a nonwoven layer can be evaluated by its solidity, which is determined by dividing a measurement of the bulk density of a nonwoven fibrous web by the density of the material that makes up the solid portion of the web. The bulk density of the web can be determined by first measuring the weight of the web (e.g., a 10 cm x 10 cm section). The measured weight of the web is then divided by the area of ​​the web to obtain the basis weight of the web, expressed in g / m 2The thickness of a web can be measured by obtaining (e.g., by die cutting) a disk of the web with a diameter of 135 mm and measuring the web thickness by placing a 230 g weight with a diameter of 100 mm centred on the web. The bulk density of a web is determined by dividing the basis weight of the web by the thickness of the web and is expressed in g / m 3 Solidity is then determined by dividing the bulk density of the nonwoven fibrous web by the density of the material (e.g., polymer) that comprises the solid filaments of the web. The density of the bulk polymer can be measured by standard means if the supplier does not specify the material density.

[0076] Loft is reported as 100% minus solidity (e.g., 7% solidity is equal to 93% loft). Higher loft is particularly advantageous in nonwoven layers that are pattern embossed because it allows the adhesive to infiltrate and flow throughout the void volume relatively easily during application of thermal energy and / or pressure. In some embodiments, high loft nonwoven layers can be combined in an embossing patterning process to create the required array of recesses.

[0077] The solidity of the nonwoven layer can be from about 2.0% to less than 12.0% (i.e., from about 98.0% to more than 88.0% loft). In some embodiments, the solidity of the nonwoven layer can be from about 5.0% to about 7.5%, from about 5.5% to about 7.0%, or from about 6% to about 6.5%.

[0078] [Film layer] Exemplary thermoplastic resins for forming the thermoplastic film layer include polyolefins, poly(isoprene), poly(butadiene), fluorinated polymers, chlorinated polymers, polyamides, polyimides, polyethers, poly(ether sulfones), poly(sulfones), poly(vinyl acetate), copolymers of vinyl acetate such as poly(ethylene)-co-poly(vinyl alcohol), poly(phosphazenes), poly(vinyl esters), poly(vinyl ethers), poly(vinyl alcohol), thermoplastic polyurethanes, and poly(carbonates). Suitable polyolefins include, but are not limited to, poly(ethylene), including polyethylene terephthalate, poly(propylene), poly(1-butene), copolymers of ethylene and propylene, alpha-olefin copolymers (such as copolymers of ethylene or propylene with 1-butene, 1-hexene, 1-octene, and 1-decene), poly(ethylene-co-1-butene) and poly(ethylene-co-1-butene-co-1-hexene). Suitable fluorinated polymers include, but are not limited to, poly(vinyl fluoride), poly(vinylidene fluoride), copolymers of vinylidene fluoride (such as poly(vinylidene fluoride-co-hexafluoropropylene)), and copolymers of chlorotrifluoroethylene (such as poly(ethylene-co-chlorotrifluoroethylene)). Suitable polyamides include, but are not limited to, poly(iminoadipoyliminohexamethylene), poly(iminoadipoyliminodecamethylene), and polycaprolactam. Suitable polyimides include poly(pyromellitimide). Suitable poly(ether sulfones) include, but are not limited to, poly(diphenyl ether sulfone) and poly(diphenyl sulfone-co-diphenylene oxide sulfone). Suitable copolymers of vinyl acetate include, but are not limited to, poly(ethylene-co-vinyl acetate) and copolymers in which at least some of the acetate groups are hydrolyzed to produce various poly(vinyl alcohols), such as poly(ethylene-co-vinyl alcohol).

[0079] The thickness of the film layer can be 1 μm to 1000 μm, 5 μm to 500 μm, 10 μm to 200 μm, or 20 μm to 100 μm.

[0080] The film layer may be provided as a laminate fused to the nonwoven fabric layer. Specifically, for example, 24012-395T sold by Nippon Matai (Taito-ku, Tokyo, Japan) is a composite material (two layers) of a solid continuous layer (single layer) made of polyolefin and a nonwoven fabric (single layer) made of polyolefin, in which the solid continuous layer (single layer) made of polyolefin can be the thermoplastic resin film layer, and the nonwoven fabric (single layer) made of polyolefin can be the nonwoven fabric layer.

[0081] Alternatively, for example, SFS15 and SFS30 sold by Mitsui Chemicals (Chuo-ku, Tokyo, Japan) are both composite materials (3 layers) of a polyolefin spunbond nonwoven fabric (single layer), a solid continuous layer (single layer) made of polypropylene, and a polyolefin spunbond nonwoven fabric (single layer), and the polyolefin spunbond nonwoven fabric (single layer) can be used as the nonwoven fabric layer, and the solid continuous layer (single layer) made of polypropylene can be used as the film layer.

[0082] The composition of the thermoplastic resin constituting the film layer may be the same as or different from the composition of the thermoplastic resin constituting the nonwoven fabric layer.

[0083] [Release liner] Although not shown, the adhesive article may include a release liner on the adhesive layer. However, a release liner is not required. For example, the adhesive article does not include a release liner in typical use. Typically, during manufacturing and distribution, the adhesive article includes a release liner.

[0084] The release liner may be applied to the adhesive layer via a fluorine-based release layer or a non-fluorine-based and non-silicone-based release layer disposed on the substrate. When the adhesive layer contains modified silicone, the release layer can exhibit better release performance than a general silicone-based release layer. The use of a non-fluorine-based and non-silicone-based release layer (also called an "NSNF release layer") as the release layer is advantageous in terms of lifting or peeling of the release liner in the embossed laminate, or in terms of manufacturing costs.

[0085] The substrate is not particularly limited, and examples thereof include films of plastics such as polyester (e.g., polyethylene terephthalate, polyethylene naphthalate, or polybutylene terephthalate), polyolefin (e.g., polyethylene), or paper (e.g., kraft paper) or paper substrates coated with such plastic materials.

[0086] The thickness of the substrate is not particularly limited and can be, for example, about 10 micrometers to about 300 micrometers.

[0087] The fluorine-based release layer is not particularly limited, and can be formed by using at least one of fluorine-based release agents such as fluorocarbon-containing materials such as perfluoroalkyl group-containing vinyl ether polymers, fluorosilicone-containing materials, and coating agents in which fluorine resins such as tetrafluoroethylene and trifluoroethylene are dispersed in binder resins.As such a fluorine-based release layer, for example, the fluorine-based release layers described in U.S. Patent Nos. 4,472,480, 4,980,443, and 4,736,048 can be suitably used.

[0088] The non-fluorine-based and non-silicone-based release layer is not particularly limited, and for example, it can be formed using at least one (meth)acrylic release agent.

[0089] The amount of the release agent applied can vary depending on the substrate. For example, the release agent is generally applied so that the dry thickness is, for example, about 0.01 micrometers to about 10 micrometers.

[0090] In one embodiment, the peel strength of the pressure-sensitive adhesive layer to the release layer of the release liner (without embossing) is, for example, about 0.01 N / 25 m to about 10 N / 25 m. Here, the peel strength is the peel strength when the release liner is peeled in a 180 degree direction at 300 mm / min based on JIS Z0237. In one embodiment, the peel strength of the pressure-sensitive adhesive layer to the release layer of the release liner (with embossing) is, for example, about 0.01 N / 25 m to about 5.0 N / 25 m.

[0091] Further details regarding release liners can be found, for example, in WO 2022 / 224081, the entire contents of which are incorporated herein by reference.

[0092] [Embossed] The adhesive layer 10 has a pattern embossed by applying heat and pressure (embossed pattern).

[0093] Wallpaper typically has an uneven surface to provide design and is made of a fragile foam, and is formed using various materials (e.g., plasticizer-containing polyvinyl chloride resin, polyolefin resin). The adhesive article of the present disclosure, including a nonwoven fabric layer, has an embossed pattern, and therefore can exert a good holding force on such wallpaper, and can provide a structure with a good balance in terms of adhesion and peelability, in which the laminate can be peeled off from the wallpaper without leaving any adhesive residue and with reduced or suppressed damage such as tearing, when peeled off from the wallpaper. It goes without saying that the attachment surface of the adhesive article of the present disclosure is not limited to wallpaper, and the embossed pattern is also useful for attachment surfaces other than wallpaper, particularly fragile attachment surfaces. The following description will be given of wallpaper as a typical example of a fragile attachment surface, but the same description can be applied to other attachment surfaces.

[0094] Among the embossed patterns, from the viewpoint of a balance between application to wallpaper, peelability, and retention of the member, an embossed pattern having a sea-island structure in which the embossed portion is a sea portion and the non-embossed portion is an island portion may be used.

[0095] The islands of non-embossed portions may be discontinuous or may be continuous in a certain direction (e.g., the x direction). In some embodiments, the islands of non-embossed portions may be discontinuously formed with embossed portions.

[0096] When the islands of the non-embossed portion are formed discontinuously, for example, an array of islands in the y direction and an adjacent array of islands in the y direction may be arranged so that the islands in both arrays are asymmetrical with respect to each other, or the islands in both arrays may be arranged so that they are symmetrical with respect to each other.

[0097] The shape of the island portion when the adhesive article is viewed from above can be a substantially circular shape, a substantially wavy shape, or a substantially polygonal shape (e.g., a substantially triangular shape, a substantially square shape, a substantially rectangular shape, a substantially regular pentagonal shape, a substantially hexagonal shape, a substantially regular octagonal shape, a substantially trapezoidal shape, a substantially rhombus shape, a substantially star shape, a substantially lattice shape), a substantially elliptical shape, a substantially linear shape (a substantially striped shape), or a shape that is a combination of these shapes.

[0098] 2 is a schematic cross-sectional view showing an example of an exemplary adhesive article according to the first embodiment of the present disclosure in a state where only one side (the adhesive layer side, the wallpaper side) is embossed. The nonwoven fabric layer and the adhesive layer are thermally welded to each other at the embossed portion and its periphery by an embossing process involving heating.

[0099] The size of the shortest interval b between an island portion and an adjacent island portion and the length a of the embossed top at a position corresponding to this pitch interval b may be the same or different. From the viewpoint of mold releasability from the embossing roll, a and b may satisfy the formula a>b. Here, in the present disclosure, the "pitch interval" refers to the distance from the bottom of an island portion to the bottom of the adjacent island portion.

[0100] The shape of the top of the island portion may be substantially flat as shown in FIG. 2, or may be substantially convex or concave.

[0101] The pitch interval b may be the same or different throughout the entire area. From the viewpoint of the balance between the applicability to wallpaper, the peelability, and the retention of the member, the pitch interval b may be, for example, about 0.01 mm to about 3.0 mm, about 0.05 mm to about 2.0 mm, or about 0.1 mm to about 1.0 mm.

[0102] The embossing depth h may be the same or different in the entire thickness direction of the laminate. From the viewpoint of balance between application to wallpaper, peelability, and retention of the member, the embossing depth h may be, for example, about 0.01 mm to about 3.0 mm, about 0.05 mm to about 2.0 mm, or about 0.1 mm to about 1.0 mm. Here, the embossing depth h refers to the distance from the bottom of the embossed portion to the top of the non-embossed portion.

[0103] In the adhesive article of the present disclosure, other layers such as a printed layer, a decorative layer, a concealing layer, etc. may be disposed between each layer (for example, between the pressure-sensitive adhesive layer and the nonwoven fabric layer) as long as the effect of the present disclosure is not impaired. The other layers may be applied to the entire surface or part of the surface.

[0104] [Manufacturing method] An example of a method for producing an adhesive article according to the present disclosure is shown below, but the method is not limited to this method. The release liner, adhesive layer, nonwoven fabric layer, and film layer used in this method can be the same as those described above.

[0105] The adhesive can be disposed on the nonwoven fabric layer by any known method. For example, the adhesive may be directly coated on the nonwoven fabric layer, or, for example, the adhesive may be coated on a release liner to form a separate layer, which is then laminated on the nonwoven fabric layer and / or the film layer. The latter method may be adopted from the viewpoint of the penetration resistance of the adhesive in the nonwoven fabric, etc.

[0106] The method for applying the pressure-sensitive adhesive to the nonwoven fabric layer, film layer, or release liner is not particularly limited, and can be, for example, a solvent coating method, an aqueous coating method, or a hot melt coating method such as notch bar coating, knife coating, roll coating, reverse roll coating, gravure coating, wire wound rod coating, slot orifice coating, slot die coating, extrusion coating, etc. After the pressure-sensitive adhesive is applied to the nonwoven fabric layer or release liner, an optional step such as a drying process or a curing process may be applied as necessary.

[0107] Examples of the method of coating a release liner with an adhesive to form a separate layer include a method of coating an adhesive on the release layer of a release liner to form an adhesive layer, and then laminating a separate release liner via the release layer to obtain an intermediate member that sequentially includes a release liner, an adhesive layer, and a release liner; or a method of coating an adhesive on one release layer of a release liner having release layers on both sides, forming an adhesive layer, and winding it up into a roll to obtain a roll body. The former intermediate member can be suitably used in a non-continuous batch-type manufacturing method, and the latter roll body can be suitably used in a continuous manufacturing method.

[0108] Both the intermediate member and the roll body can constitute a part of the final adhesive article. That is, for example, in the modified example described below, either one of the two release liners of the intermediate member can constitute the first release liner or the second release liner, and the adhesive layer can constitute the first adhesive layer or the second adhesive layer; the release liner of the roll body can constitute the first release liner or the second release liner, and the adhesive layer can constitute the first adhesive layer or the second adhesive layer.

[0109] Here, for example, in the modified example described below, the two release liners included in the intermediate member (i.e., the first release liner and the second release liner) may be the same type of release liner or different types of release liners. In one embodiment, the first release liner and the second release liner are both release liners having a fluorine-based release layer, or the first release liner and the second release liner are both release liners having a non-fluorine-based and non-silicone-based release layer, and the first release liner and the second release liner can be a release liner having a fluorine-based release layer and a release liner having a non-fluorine-based and non-silicone-based release layer, or a release liner having a non-fluorine-based and non-silicone-based release layer and a release liner having a fluorine-based release layer, respectively. It is also possible to use release liners having different fluorine-based release layers (or release liners having non-fluorine-based and non-silicone-based release layers) for the first release liner and the second release liner.

[0110] When the adhesive is directly coated onto a laminate including a nonwoven fabric layer and a film layer, a release liner may be further applied onto the adhesive layer applied to both sides of the laminate including a nonwoven fabric layer and a film layer, and an adhesive article may be obtained by applying an embossing process, cutting process, etc. as necessary.

[0111] The thickness of the adhesive layer can be, for example, about 1 μm to about 100 μm, about 5 μm to about 80 μm, or about 10 μm to about 50 μm. Here, the thickness of the adhesive layer is measured using a scanning electron microscope in the thickness direction cross section of the laminated structure, and is the average value of thicknesses at least at any five points in the adhesive layer of the laminated structure. Such a method of measuring the thickness can also be used for the thickness of each layer (e.g., substrate, release layer) constituting the above-mentioned laminate.

[0112] For example, in the modified example described below, when an intermediate member having the above-mentioned configuration is used, one of the release liners is removed, and the adhesive layer and the release liner are applied to both sides of a laminate including a nonwoven fabric layer and a film layer via the adhesive layer, and an embossing process, cutting process, etc. are applied as necessary to obtain an adhesive article.

[0113] When using a roll body having the above-mentioned configuration, the release liner and the adhesive layer are unwound from the roll body, and applied to both sides of a laminate including a nonwoven fabric layer and a film layer via the adhesive layer, and an embossing process, cutting process, etc., can be applied as necessary to obtain an adhesive article.

[0114] Specific examples of methods that can be used between the nonwoven fabric layer and the film layer include heat fusion, ultrasonic welding, adhesives, extrusion lamination, etc. Among these, the extrusion lamination method in which a thermoplastic resin is melted and extruded from a T-die and directly bonded to the nonwoven fabric by pressure is preferably used because it can efficiently fix the nonwoven fabric and the film layer without using adhesives or solvents.

[0115] The embossing treatment is not particularly limited, and may be performed, for example, by passing the laminate through at least one patterned (e.g., engraved) embossing roll having a concave-convex region corresponding to the desired arrangement of the embossed parts; alternatively, the laminate may be placed in at least one patterned (e.g., engraved) embossing mold having a concave-convex region corresponding to the desired arrangement of the embossed parts, and pressed. The former embossing method may be called the rotary embossing method, and the latter embossing method may be called the hot press embossing method. Among them, the rotary embossing method may be adopted from the viewpoint of productivity. When the rotary embossing method is used, the release layer of the intermediate member or the roll body may be the non-fluorine-based and non-silicone-based release layer described above. Such a release layer can reduce or suppress defects such as unintended peeling or warping of the release liner after production in an adhesive article formed using the rotary embossing method, compared to a fluorine-based release layer.

[0116] The temperature, pressure and time of the embossing treatment can be appropriately set depending on the type or thickness of the release liner, the pressure-sensitive adhesive layer, the nonwoven fabric layer and the film layer, the size or shape of the required embossed pattern, etc. For example, the temperature of the embossing treatment can be about 70° C. to about 220° C., about 80° C. to about 200° C., about 90° C. to about 180° C., or about 100° C. to about 150° C. The pressure of the embossing treatment is about 50 N / cm. 2 ~Approx. 1kN / cm 2 , about 100N / cm 2 ~about 800N / cm 2 , about 150N / cm 2 ~Approx. 600N / cm 2 , about 200N / cm 2 ~Approx. 500N / cm 2 , or about 250N / cm 2 ~Approx. 500N / cm 2 The time for the embossing treatment can be about 0.5 seconds to 10 seconds, about 1 second to about 5 seconds, or about 2 seconds to about 3 seconds. The adhesive article of the present disclosure can exhibit various favorable performances even when such an embossing treatment is applied.

[0117] The obtained adhesive article may be subjected to a cutting process, if necessary. The cutting process is not particularly limited, and known cutting processes such as laser cutting, die cutting, stamping, crimping, or a combination thereof can be used. [First Modification] FIG. 3 is a schematic cross-sectional view showing an example of an exemplary adhesive article 110 according to a first modification of the first embodiment of the present disclosure, in which both surfaces are embossed.

[0118] 3, the adhesive article 110 is the same as the exemplary adhesive article 100 according to the first embodiment except that the adhesive layer 10 is a first adhesive layer and a second adhesive layer 16 is disposed on the main surface of the film layer 14 opposite to the first adhesive layer. The elements having the same reference numerals and names are the same as those in the first embodiment, and the detailed description thereof is omitted.

[0119] In the adhesive article 110, the first pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12, the nonwoven fabric layer 12 and the film layer 14, and the film layer 14 and the second pressure-sensitive adhesive layer 16 may be in physical contact with each other. The first pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12, the nonwoven fabric layer 12 and the film layer 14, and the film layer 14 and the second pressure-sensitive adhesive layer 16 may each have the same size and shape in a plan view.

[0120] The description of the adhesive layer in relation to the adhesive layer 10 is similarly applicable to the second adhesive layer 16, so a detailed description will be omitted. The configuration of the second adhesive layer 16 may be the same as or different from that of the first adhesive layer 10.

[0121] In the adhesive article shown in Fig. 3, the first pressure-sensitive adhesive layer 10 and the nonwoven fabric layer 12 are deformed downward (downward in the drawing, the same below) by embossing from above (upward in the drawing, the same below), and the film layer 14 and the second pressure-sensitive adhesive layer 16 are deformed upward by embossing from below, but the presence or absence of deformation and the direction of deformation are not particularly limited. For example, the film layer 14 may not be deformed, or a part of the film layer 14 may be deformed downward and a part of the film layer 14 may be deformed upward. A specific layer may be deformed both upward and downward.

[0122] During embossing or the like, the thermoplastic resins constituting the nonwoven fabric layer and the film layer melt, which can provide good adhesion between the upper and lower layers. The embossed pattern may be present on only one side of the adhesive article (e.g., the first adhesive layer 10 and the first nonwoven fabric layer 12) or on both sides (the first adhesive layer 10 and the first nonwoven fabric layer 12, and the film layer 14 and the second adhesive layer 16). Taking into consideration the balance between the applicability to wallpaper, peelability, and the retention of the member, the embossed pattern may be present on both sides. When the embossed pattern is present on both sides, it may be the same pattern on both sides, or each may be a different pattern.

[0123] In the configuration in which the second adhesive layer 16 and the film layer 14 form an embossed pattern by heating and pressing, good holding power can be ensured even on the second adhesive layer side, and when peeled from the adherend surface, peeling can be performed while reducing or suppressing adhesive residue and damage to the adherend surface. In such a configuration, the second adhesive contained in the second adhesive layer 16 may contain modified silicone.

[0124] In a configuration in which the second adhesive layer 16 and the film layer 14 do not form an embossed pattern by heating and pressing, when the second adhesive layer is peeled off from the adherend surface and there is little need to peel the layer off while reducing or suppressing adhesive residue and damage to the adherend surface, an adhesive article can be produced more efficiently and with less resources. In such a configuration, the second adhesive contained in the second adhesive layer 16 does not need to contain modified silicone.

[0125] The spacing b of the embossments (see FIG. 2) may be the same on both the top and bottom of the laminate or may be different from each other. The depth h of the embossments (see FIG. 2) may be the same on both the top and bottom of the laminate or may be different from each other.

[0126] The first adhesive used in the first adhesive layer 10 may be the same as or different from the second adhesive used in the second adhesive layer 16. The first adhesive layer may be applicable and removable from the wallpaper.

[0127] The adhesives being different includes, for example, a configuration in which the adhesive materials are different, such as a first adhesive containing a silicone polyurea block copolymer and a second adhesive containing a silicone polyoxamide block copolymer, as well as a configuration in which the first adhesive and the second adhesive both contain a silicone polyurea block copolymer but have different adhesive strengths.

[0128] In one embodiment, the first adhesive and the second adhesive are made of the same material to prevent the risk of product defects due to incorrect adhesive surfaces. In addition, when different adhesives are used for the first adhesive and the second adhesive, for example, the second release liner can be peeled off first, and the second adhesive that appears by peeling off the second release liner can be the adhesive surface that comes into contact with hooks, posters, etc., taking into consideration the actual use of the obtained laminate. In this case, the peel strength or adhesive strength of the second adhesive can be designed to be lower than the peel strength or adhesive strength of the first adhesive (the adhesive surface that comes into contact with wallpaper).

[0129] The description of the "adhesive" in the first embodiment applies to both the first adhesive and the second adhesive, but each description applies to the first adhesive and the second adhesive independently of each other. Also, for example, the characteristics specified in relation to a wall may be particularly preferably applied to the first adhesive intended to be applied to a wall.

[0130] The film layer 14 may be configured to prevent contact between the first adhesive contained in the first adhesive layer 10 and the second adhesive contained in the second adhesive layer 16 via the nonwoven fabric layer 12. In this case, even if the first adhesive and the second adhesive have different compositions, specifically, for example, even if the first adhesive contains modified silicone and the second adhesive does not contain modified silicone, it is possible to reduce degradation of product performance due to interaction between the first adhesive and the second adhesive.

[0131] The film layer 14 may be configured to physically separate the nonwoven fabric layer 12 and the second pressure-sensitive adhesive layer 16. The film layer 14 has two main surfaces, and may have no gap connecting the two main surfaces, thereby physically separating the nonwoven fabric layer 12 and the second pressure-sensitive adhesive layer 16 and preventing contact between the first pressure-sensitive adhesive contained in the first pressure-sensitive adhesive layer 10 and the second pressure-sensitive adhesive contained in the second pressure-sensitive adhesive layer 16 via the nonwoven fabric layer 12. The film layer 14 and the second pressure-sensitive adhesive layer 16 may be in physical contact with each other.

[0132] The function of preventing contact between the first adhesive and the second adhesive via the nonwoven fabric layer 12 can be specifically achieved, for example, by having the film layer 14 have no gaps (such as through holes) connecting the first adhesive layer 10 and the second adhesive layer 16, and by having the film layer 14 form a continuous layer having a planar extent covering the entire surfaces of the first adhesive layer 10 and the second adhesive layer 16.

[0133] A release liner may be provided on one or both of the adhesive layers. The release liner that physically contacts the first adhesive layer may be the first release liner, and the release liner that physically contacts the second adhesive layer may be the second release liner. When release liners are provided on both adhesive layers, the release liners on both sides may be the same or different in composition (composition and structure).

[0134] The manufacturing method in this modification is similar to that in the first embodiment, so a detailed description will be omitted. [Second modified example] FIG. 4 is a schematic cross-sectional view showing an example of an exemplary adhesive article 120 according to a second modification of the first embodiment of the present disclosure, in which both surfaces are embossed.

[0135] 4, the adhesive article 120 is the same as the exemplary adhesive article 110 according to the first modification of the first embodiment, except that the nonwoven fabric layer 12 is a first nonwoven fabric layer, and a second nonwoven fabric layer 15 is disposed between the film layer 14 and the second pressure-sensitive adhesive layer 16. For elements with the same reference numerals and names, the descriptions of the first embodiment and its first modification are used by reference, and detailed descriptions are omitted.

[0136] In the adhesive article 120, the first pressure-sensitive adhesive layer 10 and the first nonwoven fabric layer 12, the first nonwoven fabric layer 12 and the film layer 14, the film layer 14 and the second nonwoven fabric layer 15, and the second nonwoven fabric layer 15 and the second pressure-sensitive adhesive layer 16 may be in physical contact with each other. The first pressure-sensitive adhesive layer 10 and the first nonwoven fabric layer 12, the first nonwoven fabric layer 12 and the film layer 14, the film layer 14 and the second nonwoven fabric layer 15, and the second nonwoven fabric layer 15 and the second pressure-sensitive adhesive layer 16 may each have the same size and shape in a plan view.

[0137] In the adhesive article shown in Fig. 4, the first pressure-sensitive adhesive layer 10 and the first nonwoven fabric layer 12 are deformed downward (downward in the drawing, the same below) by embossing from above (upward in the drawing, the same below), and the second nonwoven fabric layer 15 and the second pressure-sensitive adhesive layer 16 are deformed upward by embossing from below, but the presence or absence of deformation and the direction of deformation are not particularly limited. For example, the film layer 14 may not be deformed, or a part of the film layer 14 may be deformed downward and a part of the film layer 14 may be deformed upward. A specific layer may be deformed both upward and downward.

[0138] During embossing or the like, the thermoplastic resins constituting the nonwoven fabric layer and the film layer melt, which can provide good adhesion between the upper and lower layers. The embossed pattern may be present on only one side of the adhesive article (e.g., the first adhesive layer 10 and the first nonwoven fabric layer 12) or on both sides (the first adhesive layer 10 and the first nonwoven fabric layer 12, and the second nonwoven fabric layer 15 and the second adhesive layer 16). Taking into consideration the balance between the applicability to wallpaper, peelability, and the retention of the member, the embossed pattern may be present on both sides. When the embossed pattern is present on both sides, it may be the same pattern on both sides, or each may be a different pattern.

[0139] In a configuration in which the second adhesive layer 16 and the second nonwoven fabric layer 15 form an embossed pattern by heating and pressing, good holding power can be ensured even on the second adhesive layer side, and when peeled from the adherend surface, peeling can be performed while reducing or suppressing adhesive residue and damage to the adherend surface. In such a configuration, the second adhesive contained in the second adhesive layer 16 may contain modified silicone.

[0140] In a configuration in which the second adhesive layer 16 and the second nonwoven fabric layer 15 do not form an embossed pattern by heating and pressing, when the second adhesive layer is peeled off from the adherend surface while reducing or suppressing adhesive residue and damage to the adherend surface, it is possible to manufacture an adhesive article more efficiently and with less resources. In such a configuration, the second adhesive contained in the second adhesive layer 16 does not need to contain modified silicone.

[0141] The spacing b of the embossments (see FIG. 2) may be the same on both the top and bottom of the laminate or may be different from each other. The depth h of the embossments (see FIG. 2) may be the same on both the top and bottom of the laminate or may be different from each other.

[0142] The melting point of the second nonwoven fabric layer 15 may be lower than the melting point of the film layer 14. Specifically, for example, the melting point of the third thermoplastic resin constituting the second nonwoven fabric layer 15 may be lower than the melting point of the second thermoplastic resin constituting the film layer 14.

[0143] In such a configuration, for example, when heated during embossing, the second nonwoven fabric layer 15 melts faster or at a greater rate than the film layer 14, resulting in adhesion between the second pressure-sensitive adhesive layer 16 and the second nonwoven fabric layer 15, and between the second nonwoven fabric layer 15 and the film layer 14. Meanwhile, melting of the film layer 14 is reduced. As a result, adhesion between the second pressure-sensitive adhesive layer 16 and the second nonwoven fabric layer 15, and between the second nonwoven fabric layer 15 and the film layer 14 is improved.

[0144] The manufacturing method in this modification is similar to that in the first embodiment, so a detailed description will be omitted.

[0145] [How to use] The adhesive article of the present disclosure can be used in a variety of ways. In some embodiments, the adhesive article is applied, attached, or pressed onto a substrate (e.g., wallpaper and the components that make up the article to be applied to the wallpaper). In this way, the adhesive article comes into contact with the substrate. If a release liner is present, the release liner is removed before the adhesive article is applied, attached, or pressed onto the substrate. In some embodiments, at least a portion of the substrate may be wiped with isopropyl alcohol before the adhesive article is applied, attached, or pressed onto the substrate.

[0146] To remove the adhesive article from the substrate, at least a portion of the adhesive article may be peeled away from the substrate (eg, peeled or torn at a 90 degree angle to the substrate).

[0147] 1 and 2, a configuration having an adhesive layer on only one side can be used as a poster by using the film layer 14 as an ink receiving layer, for example. Such a poster can be attached to a wall and can be peeled off.

[0148] In a configuration having adhesive layers on both sides as in Figures 3 and 4, the first adhesive layer can be attached to a wall, for example, while being held by a second adhesive layer such as a hook. In such a configuration, the hook or the like can be attached to and removed from the wall.

[0149] Fig. 5 illustrates an example of an adhesive article 2 according to an embodiment of the present disclosure applied to a hook member 1, and shows a schematic diagram of the hook member 1 being removed from a wall 3. As shown in Fig. 5, for example, when an attempt is made to peel the hook member 1 from the wall 3 by gripping the curved hook portion of the hook member 1, the adhesive layer applied to the non-embossed portion is peeled off from the non-embossed portion and stretched, and is gradually peeled off from the wall, allowing the hook member to be removed from the wall.

[0150] The adhesive article of the present disclosure is applied to a wall via a first adhesive layer, which may be applicable to and removable from a variety of walls.

[0151] The wall includes a wall to which wallpaper is applied. The material of the wallpaper is not particularly limited, and examples thereof include polyvinyl chloride resin, polyolefin resin, silicone resin, and (meth)acrylate resin. These materials may contain a plasticizer. The wallpaper materials may be used alone or in combination of two or more. For example, an antifouling layer such as a silicone resin, or a protective layer of a polyolefin resin or a (meth)acrylate resin may be applied onto a foam of polyvinyl chloride resin.

[0152] Examples of polyolefin resins include at least one of simple resins such as polyethylene (low-density polyethylene (LDPE) or high-density polyethylene (HDPE)), polypropylene, polybutene, polybutadiene, and polyisoprene; copolymers of α-olefins having 4 or more carbon atoms (linear low-density polyethylene (LLDPE)); ethylene (meth)acrylic acid-based copolymers such as ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-methacrylic acid copolymer; ethylene-vinyl acetate copolymer (EVA); saponified ethylene-vinyl acetate copolymer; ethylene-vinyl alcohol copolymer; and ionomers.

[0153] The wallpaper may be foamed or non-foamed. The surface of the wallpaper may have a concave-convex pattern formed by embossing or the like. The adhesive layer of the adhesive article of the present disclosure may be applicable to and removable from fragile wallpaper such as foamed wallpaper, or from wallpaper having a concave-convex pattern from which the adhesive is easily peeled off. The adhesive article of the present disclosure can be applied to and peeled from a wall as a substrate, by allowing the laminate to be peeled or peeled off from the wall without damaging the wall when the adhesive article is pulled, for example, at an angle of about 90 degrees to the wall surface.

[0154] [Retention strength test] In some embodiments, the adhesive article of the present disclosure exhibits a holding power of about 7,000 minutes to about 50,000 minutes, about 8,000 minutes to about 30,000 minutes, about 9,000 minutes to about 20,000 minutes, or about 10,000 minutes to about 20,000 minutes in the holding power test described below. The upper limit of the holding power need not be particularly set.

[0155] [Peel strength test] In some embodiments, the adhesive strength of the wallpaper laminate of the present disclosure to wallpaper may be about 1.0 N / 25 mm to about 10 N / 25 mm, about 1.3 N / 25 mm to about 9.5 N / 25 mm, about 1.5 N / 25 mm to about 9.0 N / 25 mm, or about 1.5 N / 25 mm to about 8.0 N / 25 mm in a 90 degree peel strength test. The upper limit of the peel strength need not be particularly set.

[0156] After cleaning the wallpaper and stainless steel panel with isopropyl alcohol, perform the 90 degree peel strength test as follows: (1) Double-sided tape (ST-416, manufactured by 3M) is applied to one side of a 50 mm x 100 mm x 1.0 mm stainless steel (SUS304BA) panel. After removing the release paper from the double-sided tape, wallpaper is applied to the double-sided tape, pressed firmly with fingers to avoid wrinkles, and a 7 kg steel roller is rolled back and forth over the wallpaper at a speed of 300 mm / min to obtain a test substrate. (2) At room temperature (23±1°C, relative humidity 50±5%), one release liner of an evaluation laminate having dimensions of 25 mm x 40 mm is removed, and then the laminate is attached to the wallpaper surface of the test substrate. The laminate is then rolled back and forth once at a speed of 300 mm / min using a 7 kg steel roller to bond the laminate to the wallpaper surface. (3) After removing the other release liner of the evaluation laminate, a backing material (180 gsm, MCSPA1R4 manufactured by Epson Corporation) having dimensions of 30 mm × 100 mm × 0.21 mm is placed on one side of the test sample (the adhesive layer side of the evaluation laminate) as a backing material (lining material), and then the backing material is rolled back and forth once at a speed of 300 mm / min using a 7 kg steel roller to obtain a test sample. (4) The test sample is cured at room temperature (23±1°C, relative humidity 50±5%) for two days. (5) Using a universal material testing machine (Tensilon, manufactured by A&D Co., Ltd., Toshima-ku, Tokyo, Japan), the adhesive strength is measured when the test sample is peeled off while pulling the backing material, which is fine paper, in a 90-degree direction at a speed of 300 mm / min.

[0157] Second embodiment 6 is a schematic cross-sectional view of an exemplary adhesive article 200 according to a second embodiment of the present disclosure, in which the embossed pattern is omitted.

[0158] 6, the adhesive article 200 is the same as the exemplary adhesive article 100 according to the first embodiment except that an elastically deformable foam layer 23 is added to the main surface of the film layer 14 opposite the nonwoven fabric layer 12. The adhesive layer 20 can be configured similarly to the adhesive layer 10, the nonwoven fabric layer 22 to the nonwoven fabric layer 12, and the film layer 24 to the film layer 14. Therefore, the description of the first embodiment is used to refer to these elements, and detailed description will be omitted.

[0159] In the adhesive article 200, the pressure-sensitive adhesive layer 20 and the nonwoven fabric layer 22, the nonwoven fabric layer 22 and the film layer 24, and the film layer 24 and the foam layer 23 may be in physical contact with each other. The pressure-sensitive adhesive layer 20 and the nonwoven fabric layer 22, the nonwoven fabric layer 22 and the film layer 24, and the film layer 24 and the foam layer 23 may each have the same size and shape in a plan view.

[0160] The foam layer 23 is elastically deformable. The foam layer 23 may be a display portion for displaying an image or the like. Alternatively, a second adhesive layer may be disposed on the foam layer 23 to form a double-sided adhesive article.

[0161] In this embodiment, similarly to the first embodiment, the interaction between the two types of pressure-sensitive adhesives does not occur or is reduced, so that the deterioration of the performance of the adhesive article is reduced.

[0162] In the present embodiment, the adhesive layer and the foam layer are suitably bonded together. Without being bound by theory, it is presumed that the adhesion is improved by at least partially melting at least one of the film layer and the nonwoven fabric layer containing a thermoplastic resin by a heat treatment such as embossing.

[0163] Furthermore, in this embodiment, damage to the wall can be reduced when the adhesive is peeled off at high speeds. Without being bound by theory, it is speculated that the elastic deformation of the foam layer distributes stress and homogenizes the load on the adhesive surface, which reduces damage to the wall when the adhesive is peeled off at high speeds.

[0164] [Foam Layer] The foam layer of the present disclosure may be in the form of a foam having any suitable thickness, composition, and opacity or transparency. The foam layer may be a single layer of foam or a multi-layer foam.

[0165] In some embodiments, the foam layer may be a composite of a film layer applied to a foam. For example, a composite including a film layer bonded to a foam may be formed using any suitable technique including, for example, co-extrusion, co-molding, extrusion coating, bonding with an adhesive, pressure bonding, heat bonding, and combinations thereof of the film and foam.

[0166] The foam layer may be prepared from polymeric materials such as, for example, polyolefins (e.g., polyethylenes, such as high density polyethylene, low density polyethylene, linear low density polyethylene, and linear very low density polyethylene, polypropylene, and polybutylene), vinyl copolymers (e.g., polyvinyl chloride and polyvinyl acetate), olefin copolymers (e.g., ethylene / methyl acrylate copolymers, ethylene / vinyl acetate copolymers, and ethylene / propylene copolymers), acrylonitrile-butadiene-styrene copolymers, (meth)acrylic polymers and copolymers, polyurethanes, and combinations and blends thereof. Representative blends may include, for example, polypropylene / polyethylene blends, polyurethane / polyolefin blends, polyurethane / polycarbonate blends, and polyurethane / polyester blends. Other suitable blends may include, for example, blends of thermoplastic polymers, elastomeric polymers, and combinations thereof. Suitable compounds may include, for example, styrene-butadiene copolymers, polychloroprene (i.e., neoprene), nitrile rubber, butyl rubber, polysulfide rubber, cis-1,4-polyisoprene, ethylene-propylene terpolymers (e.g., EPDM rubber), silicone rubber, silicone polyurea block copolymers, polyurethane rubber, natural rubber, (meth)acrylate rubber, thermoplastic rubbers (e.g., styrene-butadiene block copolymers, styrene-isoprene-styrene block copolymers, styrene-ethylene / butylene-styrene block copolymers, styrene-ethylene / propylene-styrene block copolymers), thermoplastic polyolefin rubber materials, and combinations thereof.

[0167] Useful foam layers are typically flexible, for example to enable an increased degree of surface contact between a first adhesive layer disposed on the foam layer and the wallpaper surface.

[0168] The foam layer can often be selected to optimize properties such as flexibility and resilience. Flexible and resilient polymeric foams are well suited for application to textured wallpaper laminates.

[0169] From the viewpoints of application and peelability to wallpaper and retention of the member, for example, the foam layer may have an expansion ratio of more than about 5 times, about 10 times to about 50 times, about 15 times to about 40 times, or about 20 times to about 35 times. The expansion ratio of the foam layer can be determined by measuring the apparent density by a method in accordance with JIS K7222, and calculating the reciprocal of the apparent density as the expansion ratio.

[0170] The foam layer can have any suitable thickness. Suitable foam layers often have a thickness of 100 micrometers to 5.0 mm, 200 micrometers to 4.0 mm, 300 micrometers to 3.0 mm, 400 micrometers to 2.0 mm, 500 micrometers to 1.8 mm, 600 micrometers to 1.5 mm, or 700 micrometers to 1.2 mm. In some embodiments, the foam layer may be a multi-layered construction, with each layer of the foam layer contributing different properties such as density, elongation, tensile strength, and combinations thereof.

[0171] Useful polyethylene vinyl acetate copolymer foams are available from Voltek, Division of Sekisui America Corporation (Lawrence, Massachusetts) under the trade name VOLEXTRA™ and VOLARA™ series.

[0172] When the foam layer is in the form of a composite with a film layer applied to the foam, such foam layer may be in a variety of forms including, for example, single or multi-layer films, porous films, and combinations thereof. The film layer may include one or more fillers (e.g., calcium carbonate). The film layer may be a continuous or discontinuous layer. The multi-layer films may be integrally bonded together in the form of composite films, laminate films, and combinations thereof. The multi-layer films may be prepared using any suitable method including, for example, co-molding, co-extrusion, extrusion coating, bonding with a bonding agent, pressure bonding, heat bonding, and combinations thereof.

[0173] In embodiments where the foam layer comprises at least one foam and at least one film layer, the film layer may comprise a poly(alkylene) copolymer derived from at least two different alkene monomers. The poly(alkylene) copolymer may be a reaction product of an alkene mixture comprising 1) a first alkene selected from ethene, propene, or mixtures thereof, and 2) a second alkene monomer selected from 1,2-alkenes having 4 to 8 carbon atoms. For example, the second alkene monomer often has 4, 6, or 8 carbon atoms. That is, the alkene mixture comprises 1) ethene, propene, or mixtures thereof, and 2) butene, hexane, octane, or mixtures thereof. These copolymers may be prepared using metallocene catalysts. Mixtures or combinations of these copolymers may also be used.

[0174] [others] In this embodiment as well, the adhesive article may have a release liner on the pressure-sensitive adhesive layer. The release liner may be the same as in the first embodiment, and therefore a detailed description thereof will be omitted.

[0175] In the manufacturing method of this embodiment, the nonwoven fabric layer and the foam layer can be fixed by heat welding (partial melting of the nonwoven fabric layer and the film layer) during embossing. Other aspects of the manufacturing method including the embossing and the method of use are the same as those of the first embodiment, so detailed explanations are omitted.

[0176] [First Modification] FIG. 7 is a schematic cross-sectional view of an exemplary adhesive article 210 according to a first variation of the second embodiment of the present disclosure.

[0177] 7, an adhesive article 210 is the same as the exemplary adhesive article 200 according to the second embodiment except that the adhesive layer 20 is a first adhesive layer and a second adhesive layer 26 is disposed on the main surface of the foam layer 23 opposite the film layer 24. The elements having the same reference numerals and names are the same as those in the second embodiment, and detailed descriptions thereof will be omitted.

[0178] In the adhesive article 210, the first adhesive layer 20 and the nonwoven fabric layer 22, the nonwoven fabric layer 22 and the film layer 24, the film layer 24 and the foam layer 23, and the foam layer 23 and the second adhesive layer 26 may be in physical contact with each other. The first adhesive layer 20 and the nonwoven fabric layer 22, the nonwoven fabric layer 22 and the film layer 24, the film layer 24 and the foam layer 23, and the foam layer 23 and the second adhesive layer 26 may each have the same size and shape in a plan view.

[0179] The description of the second adhesive layer 26 in relation to the second adhesive layer 16 in the first embodiment is similarly applicable, and therefore a detailed description thereof will be omitted. The configuration of the second adhesive layer 26 may be the same as or different from that of the first adhesive layer 20.

[0180] In Fig. 7, the embossed pattern is omitted. In this modification, as described in the first embodiment with reference to Figs. 2 and 3, only one side may be embossed, or both sides may be embossed. The details of the embossing on only one side and the embossing on both sides can be the same as those in the first embodiment and the first modification thereof, and therefore detailed description thereof will be omitted.

[0181] Other configurations, manufacturing methods, and methods of use in this modified example are similar to those in the second embodiment, so detailed descriptions thereof will be omitted.

[0182] [Second modified example] FIG. 8 is a schematic cross-sectional view of an exemplary adhesive article 220 according to a second variation of the second embodiment of the present disclosure.

[0183] 8, the adhesive article 220 is the same as the exemplary adhesive article 210 according to the first modification of the second embodiment, except that the nonwoven fabric layer 22 is the first nonwoven fabric layer, the film layer 24 is the first film layer, and a second film layer 25 and a second nonwoven fabric layer 27 are disposed between the foam layer 23 and the second pressure-sensitive adhesive layer 26. The elements having the same reference numerals and names are described in the second embodiment and its first modification, and detailed descriptions thereof will be omitted.

[0184] The second film layer 25 is disposed on a major surface of the foam layer 23 opposite the first film layer 24. The second nonwoven fabric layer 27 is disposed on a major surface of the second film layer 25 opposite the foam layer 23. The second pressure-sensitive adhesive layer 26 is disposed on a major surface of the second nonwoven fabric layer 27 opposite the second film layer 25.

[0185] In the adhesive article 220, the first adhesive layer 20 and the first nonwoven fabric layer 22, the first nonwoven fabric layer 22 and the first film layer 24, the first film layer 14 and the foam layer 23, the foam layer 23 and the second film layer 25, the second film layer 25 and the second nonwoven fabric layer 27, and the second nonwoven fabric layer 27 and the second adhesive layer 26 may be in physical contact with each other. The first adhesive layer 20 and the first nonwoven fabric layer 22, the first nonwoven fabric layer 22 and the first film layer 24, the first film layer 14 and the foam layer 23, the foam layer 23 and the second film layer 25, the second film layer 25 and the second nonwoven fabric layer 27, and the second nonwoven fabric layer 27 and the second adhesive layer 26 may each have the same size and shape in a plan view.

[0186] The description of the film layer provided in relation to the film layer 14 in the first embodiment is similarly applicable to the second film layer 25, and therefore a detailed description thereof will be omitted. The description of the nonwoven fabric layer provided in relation to the nonwoven fabric layer 12 in the first embodiment is similarly applicable to the second nonwoven fabric layer 27, and therefore a detailed description thereof will be omitted.

[0187] The melting point of the second nonwoven fabric layer 27 may be lower than the melting point of the second film layer 25. Specifically, for example, the melting point of the fourth thermoplastic resin constituting the second nonwoven fabric layer 27 may be lower than the melting point of the third thermoplastic resin constituting the second film layer 25.

[0188] In such a configuration, for example, when heated during embossing, the second nonwoven fabric layer 27 melts faster or at a greater rate than the second film layer 25, resulting in adhesion between the second pressure-sensitive adhesive layer 26 and the second nonwoven fabric layer 27, and between the second nonwoven fabric layer 27 and the second film layer 25. Meanwhile, melting of the second film layer 25 is reduced. As a result, adhesion between the second pressure-sensitive adhesive layer 26 and the second nonwoven fabric layer 27, and between the second nonwoven fabric layer 27 and the second film layer 25 is improved.

[0189] In Fig. 8, the embossed pattern is omitted. In this modification, as described in the first embodiment with reference to Figs. 2 and 3, only one side may be embossed, or both sides may be embossed. The details of the embossing on only one side and the embossing on both sides can be the same as those in the first embodiment and the first modification thereof, and therefore detailed description thereof will be omitted.

[0190] Other configurations, manufacturing methods, and methods of use in this modified example are similar to those in the second embodiment, so detailed descriptions thereof will be omitted.

[0191] Third embodiment 9 is a schematic cross-sectional view of an exemplary adhesive article 300 according to a third embodiment of the present disclosure, in which the embossed pattern is omitted.

[0192] 9, the adhesive article 300 is the same as the exemplary adhesive article 100 according to the first embodiment except that a mechanical fastener layer 33 is added to the main surface of the film layer 14 opposite the nonwoven fabric layer 12. The adhesive layer 30 can be configured similarly to the adhesive layer 10, the nonwoven fabric layer 32 to the nonwoven fabric layer 12, and the film layer 34 to the film layer 14. Therefore, the description of the first embodiment is used to refer to these elements, and detailed description will be omitted.

[0193] In the adhesive article 300, the pressure-sensitive adhesive layer 30 and the nonwoven fabric layer 32, the nonwoven fabric layer 32 and the film layer 34, and the film layer 34 and the mechanical fastener layer 33 may be in physical contact with each other. The pressure-sensitive adhesive layer 30 and the nonwoven fabric layer 32, the nonwoven fabric layer 32 and the film layer 34, and the film layer 34 and the mechanical fastener layer 33 may each have the same size and shape in a plan view.

[0194] In this embodiment, similarly to the first embodiment, the interaction between the two types of pressure-sensitive adhesives does not occur or is reduced, so that the deterioration of the performance of the adhesive article is reduced.

[0195] Furthermore, in this embodiment, articles and the like can be reversibly attached and detached via the mechanical fastener layer.

[0196] The mechanical fastener layer 33 may be configured as a single layer not including other mechanical fastener layers that engage with each other, or may be configured as a pair of mechanical fastener layers that engage with each other. The tensile modulus of the single layer (or a pair of mechanical fastener layers that engage with each other) may be less than 30 MPa. The tensile modulus is measured at a pulling speed of 50 mm / min according to JIS K7161. The tensile modulus of the single layer (or a pair of mechanical fastener layers that engage with each other) may be 0.1 MPa to 40 MPa, 0.2 MPa to 35 MPa, 0.3 MPa to 30 MPa, 0.4 MPa to 25 MPa, etc. The lower limit of the tensile modulus may not be particularly set.

[0197] In such a configuration, the single layer (or a pair of engaging mechanical fastener layers) can be easily removed from the attachment surface.

[0198] [Mechanical fastener layer] The mechanical fastener layer of the present disclosure may have any known or unknown configuration.

[0199] Specifically, for example, the mechanical fastener may be a dual hook type mechanical fastener made of a combination of hook material and hook material, or a hook-and-loop type mechanical fastener made of a combination of hook material and loop material. In the case of a dual hook type mechanical fastener, both the mechanical fastener layer 33 and another mechanical fastener layer that engages with it (for example, a second mechanical fastener layer 35 described later) have hook material. In the case of a hook-and-loop type mechanical fastener, when the mechanical fastener layer 33 has a hook material, the other mechanical fastener layer has a loop material, and when the mechanical fastener layer 33 has a loop material, the other mechanical fastener layer has a hook material.

[0200] The entire mechanical fastener layer may be composed of a thermoplastic resin, including, but not limited to, polyolefins, polyisoprene, polybutadiene, fluorinated polymers, chlorinated polymers, polyamides, polyimides, polyethers, polyethersulfones, polysulfones, polyvinyl acetate, copolymers of vinyl acetate such as polyethylene-co-polyvinyl alcohol, polyphosphazenes, polyvinyl esters, polyvinyl ethers, polyvinyl alcohols, and polycarbonates.

[0201] The mechanical fastener layer may be configured as a "fastening tape" having hook or loop material provided on a substrate.

[0202] Suitable materials for the substrate include, but are not limited to, polypropylene, polyethylene, polypropylene-polyethylene block copolymer, polyester, vinyl chloride, polyacetate, polyamide, cotton, etc. These materials may be used alone or in combination of two or more kinds, and these materials may be in the form of a sheet or film-like molded article, or in the form of a woven fabric, nonwoven fabric, knitted fabric, etc. In particular, polypropylene, polyethylene, polypropylene-polyethylene copolymer, or a mixture thereof, has appropriate flexibility and is low cost, and is therefore suitable for use in disposable diapers. It is most suitable to form the substrate from a molded article made of a mixture of the same or similar polypropylene resin and polyethylene resin in accordance with the hook material.

[0203] Materials suitable for forming the hook material include, but are not limited to, resin materials such as polypropylene, polyethylene, polypropylene-polyethylene block copolymer, polyester, vinyl chloride, polyacetate, polyamide, elastomer, etc. In particular, polypropylene, polyethylene, polypropylene-polyethylene copolymer, polyester, elastomer or mixtures thereof are suitable for carrying out the present invention.

[0204] The hook material usually has a structure in which a number of hooks are integrally bonded to a support. The hooks may be arranged in an orderly or disorderly manner on the support. Here, the integral bonding of the hooks to the support can include various forms, such as integration by simultaneous molding with the support, embedding or planting in the support, and bonding with an adhesive. Integration by simultaneous molding with the support is most preferable. The shape of the hook is not particularly limited as long as it can be entangled with the hook of the hook material or the loop of the loop material that forms a pair to enable the desired fastening, but it is preferable that the hook is mushroom-shaped, hook-shaped, pin-shaped, or a similar protruding shape, as is often used in this technical field. The hook material can be manufactured by the method described in, for example, JP-T-6-500486 and JP-T-8-508910.

[0205] In the hook material, the thickness of the support supporting the hook may be in the range of 0.04 to 0.5 mm, or 0.04 to 0.13 mm. The height of the hook can be changed in a wide range depending on the type of the desired hook material, the thickness of the support, and other factors. The height of the hook (in other words, the sum of the height of the stem and the thickness of the head formed at the tip of the stem, if any) is usually preferably adjusted to be as small and uniform as possible. The height of the hook is usually preferably in the range of about 0.1 to 1.3 mm, more preferably about 0.2 to 0.5 mm, measured from its base.

[0206] The hook is usually 1cm 2 Preferably, the hooks are arranged on the support at a distribution density of about 60 to 1,600 hooks per cm, and more preferably at a distribution density of about 1,000 to 2,000 hooks per cm. 2 The distribution density is about 125 to 700 hooks per 100 mm. The diameter of the stem of the hook at the portion adjacent to the support (base) is preferably in the range of about 0.1 to 0.6 mm, more preferably about 0.1 to 0.3 mm. The head of the hook can be of any shape and size.

[0207] When the hook material is attached to the substrate, it can be attached using various fixing means. The bond strength between the substrate and the hook material achieved by such fixing must be greater than the bond strength between the fluorine material and the hook or loop material in actual use in order to ensure the fastening effect of the mechanical fastener of the present invention. Suitable fixing means include, for example, adhesion by glue, heat fusion, ultrasonic heating, etc., integral molding, sewing, mechanical fixing by a stapler, etc.

[0208] The loop material is usually composed of a substrate and a loop provided on at least one side thereof. Here, the loop is not particularly limited as long as it has an engaging function with the hook material, and therefore may be a loop body itself or a loop-containing material such as a woven fabric or nonwoven fabric. If necessary, these loops may be used in combination or in the form of a laminate. The laminate may be formed, for example, by laminating the above-mentioned loops to a plastic film or the like. The loop material may also be appropriately processed, such as napped, embossed, printed, dyed, etc., and when such processed products are used in particular for disposable diapers and other sanitary products, glossiness such as luster and shine can be eliminated, and an aesthetically pleasing appearance can be obtained.

[0209] The loops may be made of a variety of materials in accordance with conventional methods, but are preferably made of a fibrous material capable of effectively intertwining with the hooks of the hook material. The fibrous material may be in the form of, for example, a woven fabric, a nonwoven fabric, a knitted fabric, or other material, depending on the shape of the loop desired. Also, a film in which fibers are partially bonded to form a loop of fiber bundles may be advantageously used as the loop.

[0210] In hook-and-loop mechanical fasteners, the hook material can be engaged and fixed to the loop material, and the two can be disengaged when necessary. In dual-hook mechanical fasteners, one hook material can be engaged and fixed to the other hook material, and the two can be disengaged when necessary.

[0211] Each of the two mechanical fastener layers has an internal static shear strength in a direction parallel to the base surface that supports one of the objects to which the base surface is attached when the base surface is positioned vertically (e.g., it preferably has a static shear strength parallel to the base surface that is approximately equal to or exceeds the maximum static shear strength formed by the pressure-sensitive adhesive with a vertical surface to which it can adhere), and also has an internal dynamic tensile strength in a direction approximately perpendicular to the base surface that allows the pair of mechanical fastener layers to be separated by pulling on the joined objects without damaging the surfaces of the objects (e.g., an internal dynamic tensile strength of about 40 pounds per square inch or less, preferably about 30 pounds per square inch or less, when the tape structure is used to adhere objects to strong substrates such as ceramic materials or metals with painted and baked finishes, or about 8 to 10 pounds per square inch, depending on the material, when the tape structure is used to adhere objects to relatively weak substrates such as wallpaper).

[0212] Any of the loop engagement materials, apparatus, devices, methods of manufacture, and methods of use described in any of the following references, all of which are incorporated herein by reference, may be used in any of the embodiments described herein: U.S. Patent Nos. 8,777,919, 4,699,622, 4,894,060, 5,077,870, 5,312,387, 5,344,691, 5,399,219, 5,487,809, 5,537,722, 5,554,146, 5,705,013, 5,759,317, 5,760, 5,770, 5,890, 5,970, 5,102, 5,106, 5,108, 5,110, 5,112, 5,114, 5,116, 5,118 ... No. 5,851,205, No. 5,957,908, No. 5,985,081, No. 6,030,373, No. 6,051,094 , No. 6,075,179, No. 6,190,758, No. 6,406,468, No. 6,544,245, No. 6,575,9 No. 53, No. 7,032,278, No. 7,125,400, No. 7,361,246, No. 7,371,302, No. 7,51 No. 7,572, No. 7,578,812, No. 7,658,813, No. 3,471,903, No. 4,120,718, No. 4, No. 223,067, No. 4,216,257, No. 4,391,687, No. 4,322,875, No. 4,415,615, No. No. 4,454,183, No. 4,563,388, No. 3,353,663, No. 3,408,705, No. 4,977,003 No. 4,679,851, No. 4,819,309, No. 4,776,636, No. 5,308,428, No. 5,135, No. 598, No. 4,910,062, No. 4,887,339, No. 4,985,488, No. 5,679,302, No. 4,89 No. 4,060, No. 5,145,929, No. 5,908,695, No. 5,024,880, No. 5,852,855, No. 5 , No. 040,275, No. 5,149,573, No. 4,290,832, No. 5,453,319, No. 5,614,232, No. 5,691,027, No. 5,713,111, No. 5,671,512, No. 5,625,929, No. 5,671,51 No. 1, No. 5,851,663, No. 5,654,487, No. 5,602,221, No. 5,598,610, No. 5,691,Nos. 021, 7,879,441, 8,277,922, 6,470,540, 6,076,238, 6,592,800, 6,630,239, 6,588,074, 7,217,455, 7,703,179, 6,874,777, 7,140,774, and U.S. Patent Application Publication No. 2004 / 0010217.

[0213] [others] In this embodiment as well, the adhesive article may have a release liner on the pressure-sensitive adhesive layer. The release liner may be the same as in the first embodiment, and therefore a detailed description thereof will be omitted.

[0214] In the manufacturing method of this embodiment, the nonwoven fabric layer and the mechanical fastener layer can be fixed together by a pressure sensitive adhesive, an adhesive, an adhesive tape, heat welding during embossing (partial melting of the nonwoven fabric layer and the film layer), etc. Other aspects of the manufacturing method, including the embossing, are the same as those of the first embodiment, so detailed explanations will be omitted.

[0215] In the method of use in this embodiment, the mechanical fastener layer 33 can be attached and detached to and from another mechanical fastener layer (not shown). Therefore, after the adhesive article 300 is attached to a wall, an article to be attached, such as a hook having another mechanical fastener layer, can be engaged with the mechanical fastener layer 33 via the other mechanical fastener layer to fix the article to the wall. This makes it easier to align the article to be attached. In addition, the article to be attached can be freely attached and detached to and from the wall as necessary, which is convenient. Note that the mechanical fastener layer 33 may be attached to a wall or an article to be attached in a state where it is engaged with the other mechanical fastener layer. Other points in the method of use are the same as those in the first embodiment, so detailed explanations will be omitted.

[0216] [First Modification] FIG. 10 is a schematic cross-sectional view of an exemplary adhesive article 310 according to a first variation of the third embodiment of the present disclosure.

[0217] 10, an adhesive article 310 is the same as the exemplary adhesive article 300 according to the third embodiment except that the adhesive layer 30 is the first adhesive layer, the mechanical fastener layer 33 is the first mechanical fastener layer, a second mechanical fastener layer 35 is disposed on the main surface of the first mechanical fastener layer opposite the film layer 34, and a second adhesive layer 36 is disposed on the main surface of the second mechanical fastener layer 35 opposite the first mechanical fastener layer 33. The same reference numerals and names are used for the elements in the second embodiment, and detailed descriptions thereof are omitted.

[0218] In the adhesive article 310, the first adhesive layer 30 and the nonwoven fabric layer 32, the nonwoven fabric layer 32 and the film layer 34, the film layer 34 and the first mechanical fastener layer 33, the first mechanical fastener layer 33 and the second mechanical fastener layer 35, and the second mechanical fastener layer 35 and the second adhesive layer 36 may be in physical contact with each other. The first adhesive layer 30 and the nonwoven fabric layer 32, the nonwoven fabric layer 32 and the film layer 34, the film layer 34 and the first mechanical fastener layer 33, the first mechanical fastener layer 33 and the second mechanical fastener layer 35, and the second mechanical fastener layer 35 and the second adhesive layer 36 may each have the same size and shape in a plan view.

[0219] The description of the second adhesive layer 36 in relation to the second adhesive layer 16 in the first embodiment is similarly applicable, and therefore a detailed description thereof will be omitted. The configuration of the second adhesive layer 36 may be the same as or different from that of the first adhesive layer 20.

[0220] At least one or both of the first mechanical fastener layer 33 and the second mechanical fastener layer 35 may have a tensile modulus of less than 30 MPa. The tensile modulus is measured according to JIS K7161 at a pulling speed of 50 mm / min. At least one or both of the first mechanical fastener layer 33 and the second mechanical fastener layer 35 may have a tensile modulus of 0.1 MPa to 40 MPa, 0.2 MPa to 35 MPa, 0.3 MPa to 30 MPa, 0.4 MPa to 25 MPa, etc. The lower limit of the tensile modulus need not be particularly set.

[0221] In Fig. 10, the embossed pattern is omitted. In this modification, as described in the first embodiment with reference to Figs. 2 and 3, only one side may be embossed, or both sides may be embossed. The details of the embossing on only one side and the embossing on both sides can be the same as those in the first embodiment and the first modification thereof, and therefore detailed description thereof will be omitted.

[0222] Other configurations, manufacturing methods, and usage methods of this modified example are similar to those of the third embodiment in which the other mechanical fastener layer is replaced with the second mechanical fastener layer 35, and therefore detailed explanations will be omitted.

[0223] [Second modified example] FIG. 11 is a schematic cross-sectional view of an exemplary adhesive article 320 according to a second variation of the third embodiment of the present disclosure.

[0224] 11, an adhesive article 320 is the same as the exemplary adhesive article 310 according to the first modification of the third embodiment, except that the nonwoven fabric layer 32 is the first nonwoven fabric layer, the film layer 24 is the first film layer, and a second film layer 37 and a second nonwoven fabric layer 39, both of which contain a thermoplastic resin, are disposed between the second mechanical fastener layer 35 and the second pressure-sensitive adhesive layer 26. The elements having the same reference numerals and names are described in the third embodiment and its first modification, and detailed descriptions thereof will be omitted.

[0225] The second film layer 37 is disposed on a main surface of the second mechanical fastener layer 35 opposite the first mechanical fastener layer 33. The second nonwoven fabric layer 39 is disposed on a main surface of the second film layer 37 opposite the second mechanical fastener layer 35. The second pressure-sensitive adhesive layer 36 is disposed on a main surface of the second nonwoven fabric layer 39 opposite the second film layer 37.

[0226] In the adhesive article 320, the first adhesive layer 30 and the first nonwoven layer 32, the first nonwoven layer 32 and the first film layer 34, the first film layer 34 and the first mechanical fastener layer 33, the first mechanical fastener layer 33 and the second mechanical fastener layer 35, the second mechanical fastener layer 35 and the second film layer 37, the second film layer 37 and the second nonwoven layer 39, and the second nonwoven layer 39 and the second adhesive layer 36 may each be in physical contact with each other. The first adhesive layer 30 and the first nonwoven fabric layer 32, the first nonwoven fabric layer 32 and the first film layer 34, the first film layer 34 and the first mechanical fastener layer 33, the first mechanical fastener layer 33 and the second mechanical fastener layer 35, the second mechanical fastener layer 35 and the second film layer 37, the second film layer 37 and the second nonwoven fabric layer 39, and the second nonwoven fabric layer 39 and the second adhesive layer 36 may each have the same size and shape when viewed in a plane.

[0227] The description of the film layer provided in relation to the film layer 14 in the first embodiment is similarly applicable to the second film layer 37, and therefore a detailed description thereof will be omitted. The description of the nonwoven fabric layer provided in relation to the nonwoven fabric layer 12 in the first embodiment is similarly applicable to the second nonwoven fabric layer 39, and therefore a detailed description thereof will be omitted.

[0228] The melting point of the second nonwoven fabric layer 39 may be lower than the melting point of the second film layer 37. Specifically, for example, the melting point of the fourth thermoplastic resin constituting the second nonwoven fabric layer 39 may be lower than the melting point of the third thermoplastic resin constituting the second film layer 37.

[0229] In such a configuration, for example, when heated during embossing, the second nonwoven fabric layer 39 melts faster or at a greater rate than the second film layer 37, resulting in adhesion between the second pressure-sensitive adhesive layer 36 and the second nonwoven fabric layer 39, and between the second nonwoven fabric layer 39 and the second film layer 37. Meanwhile, melting of the second film layer 37 is reduced. As a result, adhesion between the second pressure-sensitive adhesive layer 36 and the second nonwoven fabric layer 39, and between the second nonwoven fabric layer 39 and the second film layer 37 is improved.

[0230] In Fig. 11, the embossed pattern is omitted. In this modification, as described in the first embodiment with reference to Figs. 2 and 3, only one side may be embossed, or both sides may be embossed. The details of the embossing on only one side and the embossing on both sides can be the same as those in the first embodiment and the first modification thereof, and therefore detailed description thereof will be omitted.

[0231] Other configurations, manufacturing method, and usage method in this modified example are the same as those in the third embodiment, so detailed description will be omitted. The adhesive article 320 can also be considered as an article consisting of a combination of a first adhesive article having a first adhesive layer 30, a first nonwoven fabric layer 32, a first film layer 34, and a first mechanical fastener layer 33, and a second adhesive article having a second adhesive layer 36, a second nonwoven fabric layer 39, a second film layer 37, and a second mechanical fastener layer 35. In this case, the first adhesive article and the second adhesive article each have the same configuration as the adhesive article of the second embodiment shown in FIG. 9. Therefore, the first adhesive article and the second adhesive article can also be manufactured separately in the same manner as the adhesive article of the second embodiment shown in FIG. 9.

[0232] (Other embodiments) In the present disclosure, the second adhesive may be omitted and an ink receiving layer may be disposed on the opposite side to the wallpaper. Specifically, for example, in the adhesive article 200 of the second embodiment, the second adhesive layer 16 may be omitted and an ink receiving layer may be disposed on the thermoplastic resin film layer 24. The ink receiving layer may be formed by coating or the like. The ink receiving layer may be formed of polyvinyl alcohol, pseudoboehmite, or the like (Reference: Japanese Patent No. 3213267, Japanese Patent No. 2936631).

[0233] In the adhesive article 200 of the second embodiment, the second pressure-sensitive adhesive layer 16 may be omitted, and the thermoplastic resin film layer 24 may be configured as an ink-receiving layer. In this case, the thermoplastic resin film layer 24 may be configured to have high ink receptivity, such as thermoplastic polyurethane (Reference: Japanese Patent No. 6502265).

[0234] Other exemplary embodiments of the present disclosure are given below.

[0235] [Item 1] An adhesive layer; a nonwoven fabric layer containing a thermoplastic resin disposed on the pressure-sensitive adhesive layer; a film layer containing a thermoplastic resin disposed on the nonwoven fabric layer and on the opposite side of the pressure-sensitive adhesive layer; The adhesive layer and the nonwoven fabric layer form an embossed pattern. Adhesive articles. [Item 2] 2. The adhesive article of item 1, wherein the melting point of the nonwoven layer is lower than the melting point of the film layer. [Item 3] the pressure-sensitive adhesive layer is a first pressure-sensitive adhesive layer, a second adhesive layer disposed on the film layer and on the opposite side of the nonwoven fabric layer; 3. The adhesive article according to item 1 or 2, wherein the composition of the first adhesive contained in the first adhesive layer is different from the composition of the second adhesive contained in the second adhesive layer. [Item 4] the nonwoven layer is a first nonwoven layer, a second nonwoven fabric layer is provided between the film layer and the second pressure-sensitive adhesive layer; The second adhesive layer and the second nonwoven layer form an embossed pattern. 4. The adhesive article according to item 3. [Item 5] Item 1, the adhesive article comprising an elastically deformable foam layer disposed on the film layer and opposite the nonwoven layer. [Item 6] the pressure-sensitive adhesive layer is a first pressure-sensitive adhesive layer, 6. The adhesive article of item 5, comprising a second adhesive layer disposed on the foam layer and on the opposite side of the film layer. [Item 7] the nonwoven layer is a first nonwoven layer, the film layer is a first film layer; a second film layer disposed over the foam layer and opposite the first film layer; a second nonwoven layer disposed on the second film layer and opposite the foam layer; the second film layer and the second nonwoven fabric layer contain a thermoplastic resin and are disposed between the foam layer and the second pressure-sensitive adhesive layer; The second adhesive layer and the second nonwoven layer form an embossed pattern. 7. The adhesive article of item 6. [Item 8] Item 1 , the adhesive article comprising a mechanical fastener layer disposed on the film layer and opposite the nonwoven layer. [Item 9] 9. The adhesive article of item 8, wherein the mechanical fastener layer has a tensile modulus of less than 30 MPa. [Item 10] the pressure-sensitive adhesive layer is a first pressure-sensitive adhesive layer, the mechanical fastener layer is a first mechanical fastener layer; a second mechanical fastener layer disposed on the first mechanical fastener layer opposite the film layer; and a second adhesive layer disposed on the second mechanical fastener layer opposite the first mechanical fastener layer; 10. The adhesive article according to item 8 or 9. [Item 11] the nonwoven layer is a first nonwoven layer, the film layer is a first film layer; a second film layer disposed on the second mechanical fastener layer; and a second nonwoven layer disposed on the second film layer and opposite the second mechanical fastener layer; the second film layer and the second nonwoven fabric layer contain a thermoplastic resin and are disposed between the second mechanical fastener layer and the second pressure-sensitive adhesive layer; The second adhesive layer and the second nonwoven layer form an embossed pattern. 11. The adhesive article of item 10. EXAMPLES

[0236] The following examples illustrate specific embodiments of the present disclosure without, however, limiting the present invention. All parts and percentages are by weight unless otherwise specified. Numerical values ​​inherently contain errors resulting from measurement principles and measuring devices. Numerical values ​​are expressed with significant digits with normal rounding. [Experimental Example 1] In this experiment, the product performance was evaluated against wallpaper. 1.Material <Release liner> STA(ODA): Stearyl acrylate (octadecyl acrylate), Osaka Organic Chemical Industry Co., Ltd. (Osaka City, Osaka Prefecture, Japan) ISA: Isostearyl acrylate (isooctadecyl acrylate), Shin-Nakamura Chemical Co., Ltd. (Wakayama City, Wakayama Prefecture, Japan) AEBP: 4-acryloyloxyethoxybenzophenone, 3M (St. Paul, Minnesota, USA) EMBLET(TM) S-50: PET film with a thickness of 50 μm, Unitika (Osaka City, Osaka Prefecture, Japan) Paper liner with silicone release surface: A 100μm thick polycoated kraft paper (kraft paper laminated with polyethylene resin on both sides) with a release treatment such as silicone resin applied to both sides. <Adhesive> Polydisiloxane polyoxamide elastomer: 3M (St. Paul, Minnesota, USA) XR37-B1795: Silicone tackifier (MQ resin), Momentive Performance Materials Japan, LLC (Minato-ku, Tokyo, Japan) KRATON™ D1184: Radial styrene-butadiene block copolymer (SBS), KRATON Performance Polymers. (Houston, TX, USA) SOLPRENE™ 1205: Styrene-butadiene rubber, Dynasol Elastomers, Houston, Texas, USA <Base material> ELEVES (trademark) T0503WDO: Polyolefin spunbond nonwoven fabric (single layer) 50 g / m with a thickness of about 300 μm 2, Unitika (Osaka City, Osaka Prefecture, Japan) ELEVES (trademark) T0303WDO: Polyolefin spunbond nonwoven fabric (single layer) 30 g / m with a thickness of about 170 μm 2 , Unitika (Osaka City, Osaka Prefecture, Japan) 24012-395T: A composite material (2 layers: 35 g / m2) of a solid continuous layer of polyethylene terephthalate (single layer: thickness approx. 20 μm, melting point 255°C) and a nonwoven fabric (single layer: thickness approx. 150 μm, melting point 103°C) made of polyolefin. 2 ), Nippon Matai (Taito-ku, Tokyo, Japan) SYNTEX (trademark) SFS30: Polyolefin spunbond nonwoven fabric (single layer: thickness approx. 100 μm, melting point 131°C) 28 g / m 2 and a solid continuous layer of polypropylene (single layer: 0.030 mm thick, melting point 146-160°C) and a polyolefin spunbond nonwoven fabric (single layer: thickness approx. 100 μm, melting point 131°C) 28 g / m 2 Composite material (3 layers), Mitsui Chemicals (Chuo-ku, Tokyo, Japan) SYNTEX (trademark) SFS15: Polyolefin spunbond nonwoven fabric (single layer: thickness approx. 180 μm, melting point 131°C) 28 g / m 2 and a solid continuous layer of polypropylene (single layer: 0.015 mm thick, melting point 146-160°C) and a polyolefin spunbond nonwoven fabric (single layer: thickness approx. 180 μm, melting point 131°C) 28 g / m 2 Composite material (3 layers), Mitsui Chemicals (Chuo-ku, Tokyo, Japan) <Wallpaper> The following wallpapers were used to ensure diversity in terms of surface roughness (Ra: ISO25178), developed area ratio (Sdr: ISO25178), plasticizer concentration (%), surface composition, and foam density.

[0237] 77-849: Mid-range vinyl wallpaper from the catalog "Reform Selection 2014-2016", Sangetsu (Nagoya, Aichi, Japan) 77-824: Mid-range vinyl wallpaper listed in the catalog "Reform Selection 2014-2016", Sangetsu (Nagoya, Aichi, Japan) SP9943: Popular grade vinyl wallpaper listed in the catalog "SP2015-2017", Sangetsu (Nagoya, Aichi, Japan) EB7112: Olefin wallpaper listed in the catalog "EB cloth 2016-2018", Sangetsu (Nagoya, Aichi, Japan) LL8864: Surface-coated vinyl wallpaper listed in the catalog "Light 2016-2019", Lilycolor (Shinjuku-ku, Tokyo, Japan) 2. Preparation of Test Specimens 2-1.Release liner These monomers were mixed so that the blending ratios of STA, ISA, and AEBP were 50.0 parts by mass, 50.0 parts by mass, and 0.2 parts by mass. This monomer mixture was diluted with a mixed solvent of ethyl acetate / n-heptane (50% by mass / 50% by mass) so that the monomer concentration was 50% by mass. Furthermore, V-601 was added as an initiator at a ratio of 0.20 parts by mass based on the alkyl (meth)acrylate monomer component, and the system was purged with nitrogen for 2 minutes. Thereafter, the reaction was allowed to proceed for 48 hours in a thermostatic bath at 65°C, and a precursor polymer 1 in the form of a viscous solution was obtained.

[0238] The obtained precursor polymer solution was diluted to 1% by weight with toluene / methyl ethyl ketone (MEK) (50% by weight / 50% by weight). The obtained diluted solution was coated on a PET film (EMBLET™ S-50) using a bar coater (#04). The solvent was then evaporated to form a release precursor layer having a thickness of about 0.1 micrometers.

[0239] The PET film having the release precursor layer was irradiated with ultraviolet light in one pass at a line speed of 20 m / min using an ultraviolet irradiation device (F300, medium pressure mercury lamp (H bulb), Heraeus (Hanau, Hesse, Federal Republic of Germany)) under a nitrogen gas atmosphere to harden the release precursor layer and produce a release liner. During irradiation, the amount of ultraviolet light per pass measured with an EIT UV POWER PUCK (registered trademark) II light meter was 350 mJ / cm. 2 (UVA 168mJ / cm 2 , UVB 158mJ / cm 2 , UVC 24mJ / cm 2 ) was. 2-2. Pressure-sensitive adhesive composition Modified silicone-based adhesive: A dry elastomer obtained by drying the polydisiloxane polyoxamide elastomer from Example 12 of U.S. Patent No. 8,765,881 was used. 120 parts by weight of the above-mentioned dry elastomer, 200 parts by weight of XR37-B1795 as a tackified resin, and 280 parts by weight of ethyl acetate were added to a 900 mL glass bottle and shaken for at least 12 hours with a roller set at about 25 rpm to obtain a silicone-based adhesive composition.

[0240] A pressure sensitive adhesive composition was prepared having an 85:15 ratio of KRATON™ D1184 and SOLPRENE™ 1205 as the rubber adhesive:elastomer component, and 35 parts of the tackifier component based on 100 parts of total elastomer. All of the components were added to a glass jar along with toluene to make a solution of approximately 30% solids. The jar was sealed and the contents were thoroughly mixed by placing the jar on a roller at approximately 2-6 rpm for at least 24 hours before coating to yield the SBS rubber adhesive composition.

[0241] Acrylic adhesive: A pressure-sensitive adhesive composition was prepared containing approximately 100 parts (based on the weight of the solution) of a mixture of isooctyl acrylate, acrylic acid, and methyl acrylate at 65:5:30 (a solution with a total monomer content of 26% in ethyl acetate and toluene) as a monomer, and 1.1 parts (based on the weight of the solution) of 1,1-isophthaloylbis(2-methylaziridine) (a 5% solution in toluene) as a curing agent. 2-3. Coating of adhesive composition Silicone-based adhesive coating: The release liner prepared in section 2-1 was coated with a wet gap of 0.25 to 0.26 mm to prepare an adhesive layer with a thickness of about 0.050 to about 0.065 mm. The coated adhesive sample was dried in an oven at 70°C for 10 minutes.

[0242] Rubber adhesive coating: Knife coated onto a paper liner with a silicone release surface to a dry adhesive thickness of 0.050 mm. After coating, the web was passed through an 11 meter long oven (total residence time 4 minutes) with three oven conditions: Zone 1 (2.75 meters) temperature was about 57°C, Zone 2 (2.75 meters) temperature was about 71°C, and Zone 3 (5.5 meters) temperature was about 82°C.

[0243] Coating of acrylic adhesive: Knife coated onto a paper liner with a silicone release surface to a dry adhesive thickness of 0.050 mm. After coating, the web was passed through a 53.8 meter long oven (total residence time 7 minutes 41 seconds) with four oven conditions: Zone 1 (15.2 meters) had a temperature of about 75°C, Zone 2 (6 meters) had a temperature of about 90°C, Zone 3 (16.3 meters) had a temperature of about 80°C, and Zone 4 (16.3 meters) had a temperature of about 90°C. 2-4.Lamination and embossing The adhesive coated on the release liner was placed on both sides of the substrate so that the adhesive layer faced the substrate to obtain a laminate sample. When 24012-395T was used as the substrate, a polyolefin nonwoven fabric (single layer) was placed on the wallpaper side, and a polyolefin solid continuous layer (single layer) was placed on the opposite side of the wallpaper. The obtained laminate sample was subjected to a pressure of approximately 0.3 kN / cm at 115°C for 1 second. 2 The laminate was passed through a heat press equipped with an embossing mold (pitch: 5.6 mm, height: 3.8 mm, width at top: 0.5 mm) patterned into a roughly hexagonal shape at one or both sides under a pressure of 1000 MPa, and then die-cut to a size of 25 × 30 mm to obtain a laminate for evaluation. The embossing pattern of the obtained laminate was a roughly hexagonal sea-island structure (the embossed portion was the sea portion, and the non-embossed portion was the island portion), with the pitch interval (pitch interval b in FIG. 2) of the non-embossed portion (island portion) being about 0.6 to about 0.7 mm, and the embossing depth (embossing depth h in FIG. 2) being about 0.1 mm. The configuration of each laminate for evaluation is as shown in Table 2. 3. Wallpaper Analysis Surface roughness (Ra: ISO 25178) and developed area ratio (Sdr: ISO 25178) were analyzed using a wide-area three-dimensional measuring device VR-5200 (Keyence: Osaka City, Osaka, Japan) in accordance with ISO 25178. In the analysis, the wallpaper was applied onto the stage of the device, and an area of ​​24 mm × 19 mm was observed.

[0244] The plasticizer concentration (%) was measured using a GC-MS measurement device (7890A+5975C, manufactured by Agilent Technologies).

[0245] The surface components were identified using an FT-IR measurement device (Nicolet 6700, manufactured by Thermo).

[0246] The analysis results of the wallpaper are shown in the table below. In the table, DEHP means di(2-ethylhexyl) phthalate. DINP means diisononyl phthalate. For EB7112 and LL8864, no plasticizer concentrations were detected.

[0247] [Table 1] 4. Holding power test: Holding power against wallpaper (1) A 50mm x 100mm x 1.0mm stainless steel (SUS304BA) panel was washed with isopropyl alcohol, then wiped with a paper towel, and double-sided tape (ST-416:3M, St. Paul, Minnesota, USA) was attached to one side. After removing the release paper from the double-sided tape, wallpaper was attached on top of the double-sided tape. The wallpaper was pressed firmly with a finger to avoid wrinkles. The surface of the wallpaper was washed with isopropyl alcohol, then wiped with a paper towel and dried. (2) A 30mm x 50mm x 1.0mm stainless steel (SUS304BA) panel was washed with isopropyl alcohol and then wiped with a paper towel to obtain a washed stainless steel panel. Each evaluation laminate was cut to 25mm x 30mm, and one release liner of the evaluation laminate was removed, after which the laminate was attached to the washed stainless steel panel and pressed firmly with a finger. Here, a hole of φ5mm was provided in the approximately center of one end of the vertical direction (long side direction) of the washed stainless steel panel. (3) The other release liner of the laminate was removed, and the laminate was attached to the wallpaper attached to the stainless steel panel in (1) above, with the end with the φ5 mm hole at the bottom. (4) A static load of about 15 kg was applied to the laminate for 5 seconds to obtain a test panel. All test panels were aged for 24 hours at room temperature (23±1°C, relative humidity 50±5%). (5) After 24 hours, a 225 g weight was hung from the hole at the bottom of the test panel at room temperature (23±1°C, relative humidity 50±5%), and the retention time for each test panel was recorded.

[0248] In the table, for example, ">10080" means that the retention is more than one week (=10,080 minutes), "<1day" means that the retention is less than one day (=1440 minutes), and "N / D" means that it was not measured. 5. Damage-free peel test: Check for damage to wallpaper and residual adhesive After cleaning the wallpaper and stainless steel panel with isopropyl alcohol, a damage-free peel test was performed as follows: (1) A 50mm x 100mm x 1.0mm rear stainless steel (SUS304BA) panel was cleaned with isopropyl alcohol, then wiped with a paper towel, and double-sided tape (ST-416:3M, St. Paul, Minnesota, USA) was attached to one side. After removing the release paper from the double-sided tape, wallpaper was attached on top of the double-sided tape. The wallpaper was pressed firmly with a finger to avoid wrinkles. The surface of the wallpaper was cleaned with isopropyl alcohol, then wiped with a paper towel and dried. (2) A 30 mm × 50 mm × 1.0 mm stainless steel (SUS304BA) front panel was washed with isopropyl alcohol and then wiped with a paper towel. Each evaluation laminate was cut to 25 mm × 30 mm, one release liner of the evaluation laminate was removed, and the laminate was attached to the front stainless steel panel and pressed firmly with a finger. (3) The release liner on the other side of the laminate was peeled off, and the laminate was attached to the wallpaper attached to the rear stainless steel panel in (1) above. A static load of about 15 kg was applied for 5 seconds to obtain a test panel. All test panels were aged for 1 week at room temperature (23±1°C, relative humidity 50±5%). (5) After curing, one end of the front stainless steel panel was grasped with a hand, and the front stainless steel panel was peeled off by hand in a direction approximately perpendicular to the wall surface. If peeling occurred between the wallpaper and the adhesive on the front stainless steel panel side, damage to the wallpaper, remaining adhesive on the wallpaper, and the degree of dirt were visually observed and evaluated according to the following criteria. If peeling occurred between the front stainless steel panel and the evaluation laminate, the evaluation laminate remaining on the wallpaper was peeled off by hand from the wallpaper, and evaluated in the same manner as above.

[0249] Degree of damage to wallpaper 0: No damage was caused to the wallpaper. 1: The wallpaper was partially damaged (in several places). 2: More extensive damage to the wallpaper (~50%). 3: Most of the wallpaper (more than 50%) was damaged.

[0250] Amount of adhesive remaining 0: No adhesive residue remained on the wallpaper. 1: There was adhesive remaining on the wallpaper in several places. 2: A larger area (~50%) of the wallpaper had adhesive remaining. 3: Adhesive remained on most of the wallpaper (over 50%).

[0251] Degree of dirt 0: No staining was observed. 1: Slight staining was observed in limited areas. 2: Slight staining was observed over the entire area. 3: Stains were clearly observed. 6. Liner peeling test after aging To confirm whether the adhesives on both sides interact with each other, the releasability of the release liners after aging was tested. Specifically, the evaluation laminate was aged at 50°C and 80% relative humidity for two weeks, and then cooled at room temperature for one day. The releasability of the release liners on both sides of the evaluation laminate was evaluated according to the following criteria. A: It peeled off easily. B: The adhesive and the release liner were firmly attached, but could be peeled off. C: The adhesive and the release liner were firmly attached and could not be peeled off.

[0252] The test results are shown in Table 2 below.

[0253] [Table 2] 7. Discussion In Example 1-9 (Comparative Example 1: without thermoplastic resin film layer), the holding power was weak, and the test specimen peeled off between the wall and the adhesive layer on the wall side and fell. In Example 1-6 (with thermoplastic resin film layer), the adhesive layers on both sides had the same composition, but showed good holding power. From the comparison between Example 1-9 and Example 1-6, it is considered that the silicone adhesive and the acrylic adhesive in Example 1-9 interacted with each other through the single layer nonwoven fabric (ELEVES (trademark) T503WDO), resulting in a decrease in holding power.

[0254] In Example 1-10 (Comparative Example 2: without thermoplastic resin film layer), the adhesion between the adhesive layer and the liner became stronger after aging, and peeling was not successful. In Examples 1-3, 1-5, and 1-7 (with thermoplastic resin film layer), the adhesive layers on both sides had the same composition, but no problems occurred with peeling from the liner even after aging. Comparing Example 1-10 with Examples 1-3, 1-5, and 1-7, it is believed that in Example 1-10, the silicone-based adhesive and the SBS rubber-based adhesive interacted via the single-layer nonwoven fabric (ELEVES (trademark) T503WDO), resulting in difficulty in peeling due to the adhesion between the adhesive layer and the liner.

[0255] In Example 1-11 (Comparative Example 3: without a thermoplastic resin film layer), the adhesion between the adhesive layer and the liner was stronger than in Example 1-10, and peeling was difficult. It is believed that because the substrate (ELEVES (trademark) T303WDO: 170 μm thick) used in Example 1-11 was thinner than the substrate (T503WDO: 300 μm thick) used in Example 1-10, the interaction between the adhesives on both sides was stronger, resulting in stronger adhesion between the adhesive layer and the liner.

[0256] Problems caused by the interaction between the adhesives on both sides via the single nonwoven fabric layer vary, including reduced holding power and adhesion to the liner, but all of these problems were mitigated by interposing a thermoplastic resin film between the adhesives on both sides. [Experimental Example 2] In this study, product performance on painted walls was evaluated. 1. Materials: Materials common to Example 1 will not be described. <Paint> Water-based multi-purpose color, light green: Water-based silicone acrylic emulsion resin paint, Asahipen (Tsurumi-ku, Osaka) 2. Preparation of test specimen: The same as in Example 1. 3. Wallpaper analysis: omitted as this focuses on painted walls. 4. Holding power test: Holding power against painted walls (1) Paint was applied evenly with a brush to one side of a 300 mm x 150 mm x 1.0 mm plywood board and allowed to dry at room temperature for 24 hours. (2) A 30mm x 50mm x 1.0mm stainless steel (SUS304BA) panel was washed with isopropyl alcohol and then wiped with a paper towel to obtain a washed stainless steel panel. Each evaluation laminate was cut to 25mm x 30mm, and one release liner of the evaluation laminate was removed, and the laminate was attached to the washed stainless steel panel and pressed firmly with a finger. Here, a φ5mm hole was provided approximately in the center of one end of the vertical direction (long side direction) of the washed stainless steel panel. (3) The other release liner of the laminate was removed, and the laminate was attached to the water-based paint applied to the plywood in (1) above, with the end with the φ5 mm hole at the bottom. (4) A 5 kg steel roller was used to roll over the laminate once to press the stainless steel panel, laminate, and painted plate together. All test panels were aged for 24 hours at room temperature (23±1°C, relative humidity 50±5%). (5) After 24 hours, a 225 g weight was hung from the hole at the bottom of the test panel at room temperature (23±1°C, relative humidity 50±5%), and the retention time for each test panel was recorded. 5. Damage-free peel test: Check for damage to wallpaper and residual adhesive After cleaning the wallpaper and stainless steel panel with isopropyl alcohol, a damage-free peel test was performed as follows: (1) Paint was applied evenly with a brush to one side of a 300 mm x 150 mm x 1.0 mm plywood board and allowed to dry at room temperature for 24 hours. (2) A 30 mm x 50 mm x 1.0 mm stainless steel (SUS304BA) panel was washed with isopropyl alcohol and then wiped with a paper towel. Each evaluation laminate was cut to 25 mm x 30 mm, and one release liner of the evaluation laminate was removed, and the laminate was attached to the washed stainless steel panel and pressed firmly with a finger. Here, a φ5 mm hole was provided approximately in the center of one end of the vertical direction (long side direction) of the washed stainless steel panel. (3) The other release liner of the laminate was peeled off, and the laminate was attached to the painted surface of the plywood prepared in (1) above, with the end with the φ5 mm hole at the bottom. (4) A 5 kg steel roller was used to roll over the laminate once to press the stainless steel panel, laminate, and painted plate together. All test panels were aged for one week at room temperature (23±1°C, relative humidity 50±5%). (5) After curing, one end of the front stainless steel panel was grasped with a hand, and the front stainless steel panel was peeled off by hand in a direction approximately perpendicular to the wall surface. If peeling occurred between the wallpaper and the adhesive on the front stainless steel panel side, damage to the wallpaper, remaining adhesive on the wallpaper, and the degree of dirt were visually observed and evaluated according to the following criteria. If peeling occurred between the front stainless steel panel and the evaluation laminate, the evaluation laminate remaining on the wallpaper was peeled off by hand from the wallpaper, and evaluated in the same manner as above.

[0257] The evaluation criteria for the degree of damage to the wallpaper, the degree of remaining adhesive, and the degree of staining were the same as in Example 1. 6. Liner peeling test after aging In order to confirm whether the adhesives on both sides interact with each other, the release liner after aging was tested for releasability. Specifically, the evaluation laminate was aged at 50°C and 80% relative humidity for 2 weeks, and then cooled at room temperature for 1 day. The release liner on both sides of the evaluation laminate was evaluated for releasability using the same criteria as in Example 1.

[0258] The test results are shown in Table 3 below.

[0259] [Table 3] 7. Discussion Even when adhesives other than silicone-based adhesives, such as SBS rubber-based adhesives or acrylic-based adhesives, were used on the wall side, good adhesion was achieved to the painted wall surface, and damage to the wall and adhesive residue after peeling were effectively suppressed. Even when the adhesive compositions on both sides were different, there were no problems with adhesion or peeling of the liner after aging. [Experimental Example 3] In this experiment, the product performance against wallpaper was evaluated with the addition of a foam layer. 1. Materials: Materials common to Example 1 will not be described. <Base material> Reemay (registered trademark) 2024: Polyester spunbond nonwoven fabric (single layer: thickness approx. 300 μm) 71 g / m 2 , Midwest Filtration (Cincinnati, Ohio, USA) TUX™ HC-25: 0.025 mm thick LLDPE film (single layer), Mitsui Chemicals Tohcello (Chiyoda-ku, Tokyo, Japan) Volara® XL-H 1501: 1.0 mm thick polyethylene foam layer, foaming ratio 15 times, Sekisui Chemical Co., Ltd. (Osaka, Osaka, Japan) Volara® XL-H 1502: 2.0 mm thick polyethylene foam layer, 15 times expansion ratio, Sekisui Chemical Co., Ltd. (Osaka, Osaka, Japan) Volara® XL-H 030006: 0.06 mm thick polyethylene foam layer, 3x expansion ratio, Sekisui Chemical Co., Ltd. (Osaka, Osaka, Japan) Volara® XL-H 0180004: 0.04 mm thick polyethylene foam layer, foaming ratio 1.8 times, Sekisui Chemical Co., Ltd. (Osaka City, Osaka, Japan) Volara® XL-H 08004: 0.4 mm thick polyethylene foam layer, 8x expansion ratio, Sekisui Chemical Co., Ltd. (Osaka, Osaka, Japan) Volara® XL-H 08005: 0.5 mm thick polypropylene foam layer, foaming ratio 15 times, Sekisui Chemical Co., Ltd. (Osaka, Osaka, Japan) Volara® XL-H 05003: 0.3 mm thick polypropylene foam layer, 5x expansion ratio, Sekisui Chemical Co., Ltd. (Osaka, Osaka, Japan) Y-4300K-08: 3M(TM) VHB(TM) Acrylic Foam Structural Bonding Tape, 0.8 mm thick, 3M (St. Paul, Minnesota, USA) 2. Preparation of Test Specimens 2-1.Release liner A release liner was obtained in the same manner as in Example 1. 2-2. Pressure-sensitive adhesive composition In the same manner as in Example 1, a pressure-sensitive adhesive composition was obtained. 2-3. Coating of adhesive composition In the same manner as in Example 1, the pressure-sensitive adhesive composition was coated onto the release liner. 2-4.Lamination and embossing The adhesive coated on the release liner was placed on both sides of the substrate so that the adhesive layer faced the substrate to obtain a laminate sample. When the substrate contained 24012-395T, a nonwoven fabric (single layer) made of polyolefin was placed on the adhesive layer side, and a solid continuous layer (single layer) made of polyolefin was placed on the foam layer side. The obtained laminate sample was subjected to a pressure of about 0.3 kN / cm at 130°C for 1 second. 2 The laminate was passed through a heat press equipped with the embossing mold described in Example 1 on one or both sides at a pressure of 1000 rpm, and then die-cut to a size of 30 x 40 mm to obtain a laminate for evaluation. The foam layer and the base material layers on both sides of the foam layer were bonded by heat pressing (Example 3-8, the adhesive layer and the foam layer were not bonded). The configuration of each laminate for evaluation is as shown in Table 4 and Table 5. 3. Holding power test: Holding power against wallpaper The holding power test was carried out in the same manner as in Example 1, except that the size of the evaluation laminate was 30 mm × 40 mm, and the weight hung from the hole at the lower end of the test panel was 750 g. Note that, for Example 3-18, since the foam layer of Y-4300K-08 itself has adhesiveness on both sides, the test panel was directly attached onto the foam layer, and the weight was attached. 4. Damage-free peel test: Check for damage to wallpaper and residual adhesive A damage-free peel test was carried out in the same manner as in Example 1, except that the size of the laminate for evaluation was 30 mm×40 mm.

[0260] The test results are shown in Tables 4 and 5 below.

[0261] [Table 4] 5. Discussion In Example 3-8 (Comparative Example 4: with nonwoven fabric layer, without thermoplastic resin film layer), there was no adhesion between the nonwoven fabric layer with the adhesive layer and the foam layer. In Examples 3-1 to 3-7 (with nonwoven fabric layer, with thermoplastic resin film layer), the adhesive layers on both sides had the same composition, but showed good holding power. From a comparison of Example 3-8 with Examples 3-1 to 3-7, it is believed that the presence of the thermoplastic resin film layer between the nonwoven fabric layer and the foam layer resulted in good adhesion between the nonwoven fabric layer and the foam layer.

[0262] In Example 3-9 (Comparative Example 5: no nonwoven fabric layer, with thermoplastic resin film layer), the degree of damage to the wall when peeled off from the wallpaper was large. In Examples 3-1 to 3-7 (with nonwoven fabric layer, with thermoplastic resin film layer), the composition of the adhesive layers on both sides was the same, but the degree of damage to the wall when peeled off was small. From a comparison between Example 3-9 and Examples 3-1 to 3-7, it is believed that by providing a nonwoven fabric layer in addition to the thermoplastic resin film layer, the nonwoven fabric layer stretches in the embossed island parts when peeled off, reducing stress and thereby reducing damage to the wall.

[0263] In Example 3-10 (Comparative Example 6: no nonwoven fabric, no thermoplastic resin film layer), the adhesive layer and the foam layer were in direct contact, but the adhesive strength between the adhesive layer and the foam layer was weak, and most of the adhesive layer remained on the wall side when peeled off. In Examples 3-1 to 3-7 (with nonwoven fabric layer and thermoplastic resin film layer), the adhesive layers on both sides had the same composition, but the adhesive residue at the time of peeling was small. Comparing Example 3-9 with Examples 3-1 to 3-7, it is believed that the presence of the nonwoven fabric layer and the thermoplastic resin layer improved the adhesion between the adhesive layer and the foam layer. [Experimental Example 4] In this experiment, the foam layer was added to evaluate the product performance on painted walls.

[0264] The test was carried out in the same manner as in Example 3, except that the wall was changed from wallpaper to a painted wall. The painted wall was prepared in the same manner as in Example 2.

[0265] The test results are shown in Table 6 below.

[0266] [Table 5] In configurations having a foam layer, even when adhesives other than silicone-based, such as SBS rubber-based adhesives or acrylic-based adhesives, are used on the wall side, good adhesion to the painted wall surface is provided, and damage to the wall and adhesive residue after peeling are effectively suppressed. [Experimental Example 5] In this experiment, the product performance for high speed peel was evaluated for an embodiment with an additional foam layer.

[0267] The specimen of Example 5-2 has the same configuration as the specimen of Example 4-3. The specimen of Example 5-1 (Comparative Example) has a configuration in which the foam layer and the substrate on the opposite side are omitted from the specimen of Example 5-2.

[0268] The extent of damage to the wallpaper was evaluated when the peeling speed was changed using the following method. (1) A 50mm x 100mm x 1.0mm rear stainless steel (SUS304BA) panel was cleaned with isopropyl alcohol, then wiped with a paper towel, and double-sided tape (ST-416:3M, St. Paul, Minnesota, USA) was attached to one side. After removing the release paper from the double-sided tape, wallpaper (SP9924, Sangetsu Co., Ltd.) was attached on top of the double-sided tape. The wallpaper was pressed firmly with a finger to avoid wrinkles. The surface of the wallpaper was cleaned with isopropyl alcohol, then wiped with a paper towel and dried. (2) The back of a 34 mm x 52 mm x 2.0 mm polystyrene hook was washed with isopropyl alcohol and then wiped off with a paper towel. Each evaluation laminate was cut to 30 mm x 40 mm, and one release liner of the evaluation laminate was removed, after which the laminate was attached to the back of the adhesive hook and pressed firmly with a finger. Here, an article gripping portion measuring 2 mm wide x 19 mm long was provided at approximately the center of one end of the vertical direction (long side direction) on the surface of the polystyrene hook. (3) The release liner on the other side of the laminate was peeled off, and the other side was attached to the wallpaper attached to the stainless steel panel in (1) above, with the article-holding part of the hook at the bottom. A static load of about 15 kg was applied for 5 seconds to obtain a test panel. All test panels were aged for 1 week at room temperature (23±1°C, relative humidity 50±5%). (4) After curing, the polystyrene hook was grasped by the article-holding part with the hand and pulled off in a direction approximately perpendicular to the wall surface. If peeling occurred between the wallpaper and the hook, damage to the wallpaper, residual adhesive on the wallpaper, and the degree of dirt were visually observed and evaluated according to the following criteria. The speed at which the wallpaper was peeled off was divided into three stages and each was recorded.

[0269] Peeling Speed Slow peeling: Peel the laminate off the wall in 10 to 20 seconds Medium speed peeling: Peel the laminate off the wall in about 5 to 10 seconds. High-speed peeling: The laminate is peeled off from the wall in about 5 seconds Degree of damage to wallpaper 0: No damage was caused to the wallpaper. 1: The wallpaper was partially damaged (in several places). 2: More extensive damage to the wallpaper (~50%). 3: Most of the wallpaper (more than 50%) was damaged.

[0270] [Table 6] In Example 5-2 (with foam layer), damage to the wall was reduced when peeled off at high speeds, compared to Example 5-1 (Comparative Example 6: without foam layer). [Experimental Example 6] In this experiment, the product performance was evaluated for an embodiment in which a mechanical fastener layer was added. 1. Materials: Materials common to Examples 1 and 2 will not be described. <Release liner> EMBLET(TM) SD-75: 75 μm thick PET film (corona treated on both sides), Unitika (Osaka, Osaka, Japan) <Primer> K-520: 3M (trademark) primer (synthetic resin-based base material, 3% non-volatile content), 3M (St. Paul, Minnesota, USA) <Mechanical fastener layer> SJ-3442J: 3M(TM) Dual Lock(TM) Fastener 170 stem / inch 2 , 3M (St. Paul, Minnesota, USA) SJ-3440J: 3M(TM) Dual Lock(TM) Fasteners 250 stems per inch 2 , 3M (St. Paul, Minnesota, USA) SJ-3441J: 3M(TM) Dual Lock(TM) Fastener 400 stems per inch 2 , 3M (St. Paul, Minnesota, USA) DLLP STEM, CAPPED, WHT: Mechanical fasteners, 3M (St. Paul, Minnesota, USA) NC-2017: 3M(TM) Mechanical Fasteners, Loop Side, 3M (St. Paul, Minnesota, USA) NC-2041: 3M(TM) Mechanical Fastener, Hook Side, 3M (St. Paul, Minnesota, USA) 515N: Magic Tape (trademark) hook / loop, Kuraray Fastening (Osaka City, Osaka Prefecture, Japan) 2. Preparation of Test Specimens 2-1.Release liner A release liner was obtained in the same manner as in Example 1, except that EMBLET (trademark) SD-75 was used as the PET film. 2-2. Pressure-sensitive adhesive composition In the same manner as in Example 1, a pressure-sensitive adhesive composition was obtained. 2-3. Coating of adhesive composition In the same manner as in Example 1, the pressure-sensitive adhesive composition was coated onto the release liner. 2-4.Lamination and embossing The mechanical fastener layer was separated into two layers, and laminated and embossed on one side at a time. The adhesive coated on the release liner was placed on both sides of the substrate (24012-395T or Reemay™ 2024) with the adhesive layer facing the substrate to obtain a laminate sample. When 24012-395T was used as the substrate, a nonwoven fabric (single layer) made of polyolefin was placed on the adhesive layer side, and a solid continuous layer (single layer) made of polyolefin was placed on the mechanical fastener layer side. The obtained laminate sample was subjected to a pressure of approximately 0.3 kN / cm at 130°C for 1 second. 2 The laminate was passed through a heat press equipped with the embossing molds described in Example 1 on both sides at a pressure of 1000 MPa to obtain a pressed laminate.

[0271] K520 was applied as a primer to the flat surface side (the side on which no hooks or loops were formed) of the mechanical fastener layer, and then dried. A pressed laminate from which one side (the mechanical fastener layer side) of the release liner had been removed was bonded to the obtained mechanical fastener layer, and then die-cut to a size of 19 x 52 mm to obtain a laminate for evaluation.

[0272] In addition, for Examples 38 and 40, the adhesive coated on the release liner was placed only on the adhesive layer side of the substrate, and the embossing mold described in Example 1 was placed only on the adhesive layer side, and pressing was performed under the same conditions as above. Thereafter, the adhesive coated on the release liner was applied to the mechanical fastener layer side of the substrate. K520 was applied as a primer to the flat surface side (the side on which no hooks or loops were formed) of the mechanical fastener layer, and then dried. The release liner on the mechanical fastener layer side was removed, and the mechanical fastener layer was adhered, and then die-cut to a size of 19 x 52 mm to obtain a laminate for evaluation.

[0273] The configuration of each evaluation laminate is as shown in Tables 5 and 6. 3. Tensile modulus of mechanical fastener layer Each mechanical fastener layer (hook side or loop side) was cut into a dumbbell 1B type and the tensile modulus was measured according to JIS K7161. The tensile speed was 50 mm / min. The measurement device used was a universal material testing machine (Tensilon, manufactured by A&D Co., Ltd., Toshima-ku, Tokyo, Japan). 4. Holding power test: Holding power against wallpaper (1) A 50mm x 100mm x 1.0mm stainless steel (SUS304BA) panel was washed with isopropyl alcohol, then wiped with a paper towel, and double-sided tape (ST-416:3M, St. Paul, Minnesota, USA) was attached to one side. After removing the release paper from the double-sided tape, wallpaper was attached on top of the double-sided tape. The wallpaper was pressed firmly with a finger to avoid wrinkles. The surface of the wallpaper was washed with isopropyl alcohol, then wiped with a paper towel and dried. (2) After removing the release liner on the wallpaper side from the evaluation laminate on the wallpaper side, the evaluation laminate was attached to the wallpaper that had been attached to the stainless steel panel in (1) above. (3) A 50mm x 100mm x 1.0mm stainless steel (SUS304BA) panel was washed with isopropyl alcohol and then wiped with a paper towel to obtain a washed stainless steel panel. After removing the release liner on the mechanical fastener layer side from the evaluation laminate on the opposite side (opposite the wallpaper, same below), the evaluation laminate was attached to the washed stainless steel panel and pressed firmly with a finger. Here, a φ5mm hole was provided approximately in the center of one end of the vertical direction (long side direction) of the washed stainless steel panel. (4) The wallpaper-side panel obtained in (2) above and the opposite-side panel obtained in (3) above were engaged with each other so that their mechanical fastener layers engaged with each other and the end with the φ5 mm hole was the lower end, and the laminate was pressed with a static load of about 15 kg for 5 seconds to obtain a test panel. All test panels were aged for 24 hours at room temperature (23±1°C, relative humidity 50±5%). (5) After 24 hours, a 750 g weight was hung from the hole at the bottom of the test panel at room temperature (23±1°C, relative humidity 50±5%), and the retention time for each test panel was recorded.

[0274] For example, in the table, ">10080" means that the holding power is more than one week (=10,080 minutes), "<60" means that the holding power is less than one hour (=60 minutes), "<10" means that the holding power is less than 10 minutes, and "N / D" means that the adhesive could not adhere to the wallpaper. 5. Damage-free peel test: Check for damage to wallpaper and residual adhesive After cleaning the wallpaper and stainless steel panel with isopropyl alcohol, a damage-free peel test was performed as follows: (1) A 50mm x 100mm x 1.0mm rear stainless steel (SUS304BA) panel was cleaned with isopropyl alcohol, then wiped with a paper towel, and double-sided tape (ST-416:3M, St. Paul, Minnesota, USA) was attached to one side. After removing the release paper from the double-sided tape, wallpaper was attached on top of the double-sided tape. The wallpaper was pressed firmly with a finger to avoid wrinkles. The surface of the wallpaper was cleaned with isopropyl alcohol, then wiped with a paper towel and dried. (2) After removing the release liner on the wallpaper side from the evaluation laminate on the wallpaper side, the evaluation laminate was attached to the wallpaper whose rear surface was attached to the stainless steel panel in the above (1). (3) A 50 mm x 100 mm x 1.0 mm stainless steel (SUS304BA) front panel was washed with isopropyl alcohol and then wiped with a paper towel to obtain a washed stainless steel front panel. After removing the release liner on the mechanical fastener layer side from the evaluation laminate on the other side, the evaluation laminate was attached to the washed stainless steel front panel and pressed firmly with a finger. (4) The wallpaper-side panel obtained in (2) above and the opposite-side panel obtained in (3) above were engaged with each other so that their mechanical fastener layers engaged with each other, and the laminate was pressed with a static load of about 15 kg for 5 seconds to obtain a test panel. All test panels were aged for one week at room temperature (23±1°C, relative humidity 50±5%). (5) After curing, one end of the front stainless steel panel was grasped by hand, and the front stainless steel panel was peeled off by hand in a direction approximately perpendicular to the wall surface. If separation occurred between the two mechanical fastener layers, it was rated as "I", and if separation occurred between the adhesive layer and another layer, it was rated as "A". If separation occurred between the adhesive layer and the wallpaper, damage to the wallpaper, remaining adhesive on the wallpaper, and the degree of dirt were visually observed and evaluated according to the same criteria as in Example 1. In other cases, the evaluation laminate remaining on the wallpaper was peeled off from the wallpaper by hand, and evaluated in the same manner as above. 6.Easy to remove from wallpaper The evaluation laminate on the wallpaper side was peeled off by hand from the wallpaper while separated from the evaluation laminate on the opposite side, and the ease of peeling was evaluated according to the following criteria. P: The edge of the evaluation laminate could be easily pulled up and peeled off from the wallpaper. Q: I had a hard time pulling up the edge of the evaluation laminate, but I managed to pull it off the wallpaper.

[0275] The test results are shown in Tables 8 and 9 below.

[0276] [Table 7] 7. Discussion In Example 6-24 (Comparative Example 7: no thermoplastic resin film layer), the adhesion between the adhesive layer and the mechanical fastener layer was weak, and in the holding power test, the test specimen peeled off between the adhesive layer and the mechanical fastener layer and fell. In Examples 6-13 to 6-23 (with thermoplastic resin film layer), the adhesive layers on both sides had the same composition, but showed good holding power. From a comparison between Example 6-24 and Examples 6-13 to 6-23, it is believed that the presence of a thermoplastic resin film layer between the nonwoven fabric layer and the mechanical fastener layer resulted in good adhesion between the nonwoven fabric layer and the mechanical fastener layer.

[0277] On the other hand, in Examples 6-19 to 6-23 (wall-side laminate: Examples 6-4 to 6-8, tensile modulus: 52.8 to 84.7 MPa), peeling the wall-side laminate from the wall was more difficult than in Examples 6-13 to 6-18 (wall-side laminate: Examples 6-1 to 6-3 or Examples 6-9 to 6-11, tensile modulus: 7.2 to 18.6 MPa). It is believed that by setting the tensile modulus of the wall-side laminate below a certain level, peeling from the wall becomes easier.

[0278] The entire disclosures of all patents, patent applications and publications, publications, and electronically available materials cited herein are incorporated by reference. In the event of any discrepancy between the disclosure of this application and the disclosure of any document incorporated by reference herein, the disclosure of this application shall prevail. The above embodiments and examples are merely presented for clarity of understanding. No unnecessary limitations should be understood therefrom. The present disclosure is not limited to the exact details shown and described, and variations obvious to those skilled in the art are included within the scope defined by the claims and the doctrine of equivalents.

[0279] All headings are for the convenience of the reader and should not be used to limit the meaning of the text that follows the heading, unless so specified.

[0280] Various modifications may be made without departing from the spirit and scope of the invention. These and other embodiments are intended to be included within the scope defined by the following claims and the doctrine of equivalents.

Claims

1. An adhesive layer; a nonwoven fabric layer containing a thermoplastic resin disposed on the pressure-sensitive adhesive layer; a film layer containing a thermoplastic resin disposed on the nonwoven fabric layer and on the opposite side of the pressure-sensitive adhesive layer; The adhesive layer and the nonwoven fabric layer form an embossed pattern. Adhesive articles.

2. 10. The adhesive article of claim 1, wherein the nonwoven layer has a melting point lower than the melting point of the film layer.

3. the pressure-sensitive adhesive layer is a first pressure-sensitive adhesive layer, a second adhesive layer disposed on the film layer and on the opposite side of the nonwoven fabric layer; 3. The adhesive article according to claim 1, wherein the composition of the first adhesive contained in the first adhesive layer is different from the composition of the second adhesive contained in the second adhesive layer.

4. the nonwoven layer is a first nonwoven layer, a second nonwoven fabric layer is provided between the film layer and the second pressure-sensitive adhesive layer; The second adhesive layer and the second nonwoven fabric layer form an embossed pattern. The adhesive article of claim 3.

5. 10. The adhesive article of claim 1 comprising an elastically deformable foam layer disposed on the film layer opposite the nonwoven layer.

6. the pressure-sensitive adhesive layer is a first pressure-sensitive adhesive layer, 6. The adhesive article of claim 5 comprising a second adhesive layer disposed on the foam layer opposite the film layer.

7. the nonwoven layer is a first nonwoven layer, the film layer is a first film layer; a second film layer disposed on the foam layer opposite the first film layer; and a second nonwoven layer disposed on the second film layer and opposite the foam layer; the second film layer and the second nonwoven fabric layer contain a thermoplastic resin and are disposed between the foam layer and the second pressure-sensitive adhesive layer; The second adhesive layer and the second nonwoven fabric layer form an embossed pattern. The adhesive article of claim 6.

8. 10. The adhesive article of claim 1 comprising a mechanical fastener layer disposed on the film layer opposite the nonwoven layer.

9. 9. The adhesive article of claim 8, wherein the mechanical fastener layer has a tensile modulus of less than 30 MPa.

10. the pressure-sensitive adhesive layer is a first pressure-sensitive adhesive layer, the mechanical fastener layer is a first mechanical fastener layer; a second mechanical fastener layer disposed on the first mechanical fastener layer opposite the film layer; and a second adhesive layer disposed on the second mechanical fastener layer on the opposite side of the first mechanical fastener layer; 10. The adhesive article of claim 8 or 9.

11. the nonwoven layer is a first nonwoven layer, the film layer is a first film layer; a second film layer disposed on the second mechanical fastener layer; a second nonwoven layer disposed on the second film layer and opposite the second mechanical fastener layer; the second film layer and the second nonwoven fabric layer contain a thermoplastic resin and are disposed between the second mechanical fastener layer and the second pressure-sensitive adhesive layer; The second adhesive layer and the second nonwoven fabric layer form an embossed pattern. The adhesive article of claim 10.

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