One-sided self-adhesive film, method for producing one-sided self-adhesive film, method for attaching one-sided self-adhesive film to substrate, and use of one-sided self-adhesive film

Abstract

The present invention relates to the construction of an adhesive film having a self-adhesive, adhesive-compatible surface on one side, a method for producing such a one-sided self-adhesive film, a method for applying a one-sided self-adhesive film, in particular for full-surface adhesion to substrates such as floors, walls, ceilings, etc., and the use of the adhesive film, in particular for full-surface adhesion to substrates, and a method for applying an adhesive and / or leveling compound to the adhesive-compatible surface of the self-adhesive film. [Selection diagram] None

Description

Technical Field

[0001] The present invention relates to the structure of an adhesive film having self - adhesiveness on one side and an adhesive - affinity surface, a method for manufacturing this type of one - side self - adhesive film, a method for attaching a one - side self - adhesive film for attaching to a substrate such as a floor, wall, ceiling, etc., particularly over the entire surface, and the use of a self - adhesive film for attaching to a substrate, particularly over the entire surface, and a method for attaching an adhesive and / or a leveling compound to the adhesive - affinity surface of the self - adhesive film.

Background Art

[0002] One - side adhesive dry adhesives and adhesive tapes are usually available in roll form for use in construction sites. By applying a low - adhesion layer on the back side of the adhesive tape or the substrate, or a peelable backing layer on the pressure - sensitive adhesive layer, they are prevented from sticking to each other. Thereby, Without pasting the adhesive tape can be wound up, Also without problems Unroll the roll again and can be done.

[0003] A structure with a low - adhesion layer provided on the back side of the substrate has an adhesive for further adhesion, Which becomes an obstacle therefore, in the construction site situation, there is little possibility of attaching a further layer to these adhesive tapes using a general adhesive or leveling compound having sufficient adhesive strength. For example, when a moisture - proof agent is adhered over the entire area of a structural member such as a floor, ceiling, wall, etc., or when there is a purpose of further adhering, for example, an insulating material, a floor covering material, a protective layer, or when there is a purpose of further attaching a leveling compound, etc.

[0004] WO2015 / 126931 discloses a roll comprising an air and water barrier member having first and second opposing major surfaces, a pressure-sensitive adhesive disposed on at least the first major surface of the member, and a backing having a first major surface that contacts and faces the second major surface of the barrier member, wherein in such a roll, the pressure-sensitive adhesive contacts the second major surface of the backing when wound. Also disclosed are a self-adhesive air and water barrier member and a building packaging material manufactured from the disclosed roll.

[0005] German Patent (DE 693 27 611) relates to a coating substrate, a plastic film, an adhesive, a release substance, and a temporary substrate, and combinations thereof, for manufacturing a shaped article suitable for surface coating.

[0006] In the case where there is an adhesion-affinitive surface and no adhesion-reducing layer, there is a tendency for the roll of adhesive tape Is pasted to stick Tendency to This applies in particular to self-adhesive films having a relatively high peel adhesion force exceeding about 15 N / 25 mm according to DIN EN 1939:2003 Due to Therefore, in recent years, one-sided self-adhesive adhesive tapes designed to be further adhered have an adhesion-affinitive treatment on the back side of the substrate

[0007] to prevent sticking Pasted and are tapes having a peelable backing layer on the pressure-sensitive adhesive layer. To paste These adhesive tapes are not convenient to use. This is because the backing layer must be removed before the adhesive tape is adhered. On the one hand, this makes the operation complicated and cumbersome, and difficult to handle. On the other hand, as a result of the removal of the backing layer, the released adhesive tape will have a fairly large mobility and can form wrinkles in a very short time. In particular, for example, over the entire surface of a floor, wall, ceiling, etc.

[0008] This is because the backing layer must be removed before the adhesive tape is adhered. On the one hand, this makes the operation complicated and cumbersome, and difficult to handle. On the other hand, as a result of the removal of the backing layer, the released adhesive tape will have a fairly large mobility and can form wrinkles in a very short time. In particular, for example, over the entire surface of a floor, wall, ceiling, etc. AdhesionWhen performing this, the width of the adhesive film used is therefore relatively wide, with a width of 300 mm or more. For example, when it is not realistically possible to perform by hand, one hand must hold the self-adhesive film, and the other hand must peel off the protective film, and it is inevitable that wrinkles will occur. This is a major drawback, especially in the full-surface adhesion of the moisture-proof agent to the substrate, because voids can be formed when adhering. Furthermore, the adhesive tape Further adhesion in the subsequent From rubbing Resulting from of one surface of the base material is necessary. As a result, the back side of the adhesive film, that is, the adhesive-affinity surface of the adhesive film, is damaged, soiled, deteriorated, or otherwise damaged, and as a result, the ease of adhesion and / or the physical finish state may be impaired, reduced, or destroyed. Furthermore, this type of roll has little stability and tends to unwind or come apart naturally. This causes inconvenience in the work Increases, and the application becomes even more complicated .

[0009] Even when the peel adhesion force value of the pressure-sensitive adhesive layer is not too high, a one-sided self-adhesive adhesive film having an adhesive-affinity surface and no releaseable backing layer Pasted may stick To paste or at least exhibit a high or very high unwinding force. In the case of a wide roll with a width exceeding 300 mm, only the unwinding force required for full-surface adhesion to the substrate increases, and practical work is no longer possible. The reason for this is that, on the one hand, the unwinding force increases in proportion to the width, and on the other hand, while manually unwinding the self-adhesive film, the point load on the adhesive film and / or on its substrate increases accordingly. Damage to the self-adhesive film is almost inevitable. In some cases, during the unwinding of this type of adhesive tape roll, the pressure-sensitive adhesive of the pressure-sensitive adhesive layer may remain on the adhesive-affinity surface, which may interfere with further work.

[0010] The double-sided self-adhesive adhesive tape has Two self - adhesive pressure - sensitive adhesive (PSA layer) opposite orientations FirstThe layer is open and is attached to the substrate to which adhesion is to be performed, and the second PSA layer 、 carries a release liner. The structure of this release liner generally adheres slightly stronger on the second PSA layer than on the first PSA layer, and thus maintains the predetermined arrangement of the release liner on the roll. Further bonding (adhesion) is possible by the second PSA layer. However, this is neither desirable nor reasonable for all applications. Related adhesive tapes are known, for example, from German Patent DE 298 24 685, European Patent EP 0 567 110, or European Patent EP 1 311 643. The PSA layer generally is not suitable to function as a surface suitable for adhesion to conventional adhesives or leveling compounds.

[0011] Also, at a construction site, it is generally impossible to perform a suitable surface pretreatment such as corona treatment or plasma treatment to change a conventional adhesion reduction layer to an adhesion-affinitive surface for a one-sided self-adhesive adhesive tape adhered over the entire area. In the situation of a construction site, the capital investment and complexity of related equipment are generally infeasible.

[0012] Accordingly, there is a need for a one-sided self-adhesive film for full-surface adhesion to a substrate such as a floor, wall, or ceiling. Such a film is, for example, a one-sided self-adhesive adhesive tape or adhesive sheet having a width of at least 300 mm, which has, for example, a pressure-sensitive adhesive layer and also has an adhesive-affinity surface on the back side of the substrate or the back side of the adhesive tape, i.e., on the side opposite to the substrate surface, enabling practical and convenient use without the aid of equipment. This includes, in particular, a pressure-sensitive adhesive layer that is exposed (opened) when the self-adhesive film is unrolled, and also includes a one-sided self-adhesive film that can be applied to the surface to which adhesion is to be performed and rubbed, and also includes any removable backing layer that needs to be removed only prior to subsequent steps, i.e., prior to further adhesion. This surface is preferably intended to provide an adhesive-affinity surface (a surface that is easy to adhere to) for conventional structural adhesives such as adhesives for floor coverings, wood floor adhesives, tile adhesives, etc., or for conventional leveling compounds (leveling agents) such as self-leveling compounds.

Summary of the Invention

[0013] The considerations are as follows. For good and convenient application of the adhesive film of the present invention such as an adhesive tape, the PSA layer of the adhesive film such as an adhesive tape is preferably open. That is, it is not covered by a backing or backing layer. Furthermore, for improved processability, an adhesive-affinity surface facing the surrounding environment is required. However, since such an adhesive film is typically available as a roll or laminated sheet, it is preferably necessary that the PSA layer is not substantially adhered to the adhesive-affinity surface. This can prevent the roll or sheet Is pasted from sticking or being separable only with a strong force, and further prevent PSA residues of the PSA layer from remaining on the adhesive-affinity surface. Also, it is possible to avoid any removable backing layer remaining on the PSA layer of the adhesive film when they come into contact during winding or lamination, or when they are separated during pulling or unwinding.

[0014] On the one hand, in particular, for example, to enable full adhesion to a convenient and practical substrate of a one-sided self-adhesive film (e.g., especially without wrinkles), and on the other hand, further, to provide an adhesive affinity surface on which a conventional adhesive or a conventional leveling compound (leveling agent) can be placed, the inventors have discovered the design essential for a one-sided self-adhesive film. To adhere The inventors have discovered that, from this perspective, on an adhesive affinity surface where neither the substrate film nor the PSA layer is substantially damaged, or on a peelable backing layer, the maximum adhesive force of the PSA layer can be achieved.

[0015] The inventors have, from this perspective, discovered that When separating not only the substrate film but also the PSA layer is substantially undamaged, and the maximum adhesive force of the PSA layer can be achieved on an adhesive affinity surface or on a peelable backing layer.

[0016] In a first aspect, the present invention relates to an adhesive film having self-adhesion on one side, - at least one substrate film having an adhesive affinity surface on one side, - a pressure-sensitive adhesive layer disposed on one side of the substrate film facing the surrounding environment and opposite to the adhesive affinity surface, and a peelable backing layer is attached to the adhesive affinity surface of the substrate film, and the pressure-sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, measured according to Finat FTM10, on the surface of the peelable backing layer on the side opposite to the adhesive affinity surface of the substrate film, and / or the pressure-sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, measured according to Finat FTM10, on the adhesive affinity surface.

[0017] In certain embodiments, a peelable backing layer is present, and the peelable backing layer remains on the adhesive affinity surface of the substrate film during separation, such as peeling or unwinding (from the laminate).

[0018] Also, - at least one base film having an adhesive affinity surface on one side, - a pressure-sensitive adhesive layer disposed on one side of the base film facing the ambient environment and opposite to the adhesive affinity surface, and a method for manufacturing a one-sided self-adhesive film is disclosed, On the surface of the peelable backing layer on the side opposite to the adhesive affinity surface of the base film, the pressure-sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, measured according to Finat FTM10. The peelable backing layer is attached to the adhesive affinity surface of the base film, The pressure-sensitive adhesive layer is attached to one side of the base film facing the ambient environment and opposite to the adhesive affinity surface. The peelable backing layer is attached to the adhesive affinity surface of the base film. The peelable backing layer is attached before, during, or after the first pressure-sensitive adhesive layer, and / or The pressure-sensitive adhesive layer is attached to the base film on the side opposite to the adhesive affinity surface of the base film. The pressure-sensitive adhesive layer on the adhesive affinity surface of the base film has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, measured according to Finat FTM10.

[0019] In particular, in this method, it is possible to manufacture the one-sided self-adhesive film of the present invention.

[0020] Furthermore, the present invention more specifically relates to a method for attaching the one-sided self-adhesive film of the present invention over the entire area onto a substrate such as a floor, a staircase, or a wall, and comprises the following steps: Attaching the one-sided self-adhesive film to the substrate, Rubbing and / or stretching the one-sided self-adhesive film on the substrate, Optionally, removing the peelable backing layer of the one-sided self-adhesive film, and Optionally, applying an adhesive to the adhesive affinity surface of the one-sided self-adhesive film, Mortarand / or applying a leveling compound (leveling agent).

[0021] Furthermore, the use of the one-sided self-adhesive film of the present invention for adhering an adhesive and / or a leveling compound, which is preferably different from the pressure-sensitive adhesive of the pressure-sensitive adhesive layer, more specifically for adhering to a substrate over the entire area, is disclosed.

[0022] Other aspects of the present invention will be apparent from the dependent claims and the detailed description.

Embodiments for Carrying Out the Invention

[0023] Definitions Unless otherwise defined, technical and scientific expressions used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the present invention, where one of ordinary skill in this case is one of ordinary skill in the field of construction adhesives, specifically in the field of developing self-adhesive films for use in the construction industry, particularly for adhering floor coverings or applying leveling compounds to floors. Finat FTM10 is, for example, published in the 9th edition of the FINAT Technical Handbook in 2014.

[0024] An adhesion-affine surface is a surface on which a standard-compliant adhesive force can be obtained using a normal adhesive typical in construction. For example, for an adhesive for floor coverings, a peel force of at least 0.5 N / mm measured by a method based on DIN EN 1372:2015, for an adhesive for wooden floor coverings, an adhesive strength of at least 1.0 N / mm 2 measured by a method based on DIN EN 14293:2006, for a mineral tile adhesive, an adhesive strength of at least 0.5 N / mm 2 measured by a method based on DIN EN 1348:2007, for a leveling compound, an adhesive strength of at least 1.0 N / mm 2 measured by a method based on DIN EN 13892-8:2003, and / or for a pressure-sensitive adhesive for construction applications, a peel force of at least 5.0 N / 25 mm measured by a method based on DIN EN 1939:2003 is achieved.

[0025] For the purposes of the present invention, the film is a material that is sufficiently thin to serve as a base for attaching a pressure-sensitive adhesive. It is not limited to a specific material. Thus, the substrate film is a substrate in the form of a film, i.e., a material that is sufficiently thin. It may be a single-layer or multi-layer structure and, as a multi-layer substrate film, may be composed of the same and / or different layers. The substrate film is, for example, single-layer. According to other embodiments, the substrate film has 2, 3, 4 or more layers. The thickness of the film is not particularly limited as long as it is flexible and its thickness can be appropriately adapted to the application.

[0026] A pressure-sensitive adhesive (PSA) is an adhesive that adheres physically and, after being attached to a substrate material such as a substrate film, maintains a viscoelastic permanent adhesiveness and can subsequently be attached to the substrate by pressure and remain attached there. In contrast to adhesives that harden chemically or physically, PSA does not exhibit a curing process and rather develops its adhesive force only by the interaction between the surfaces of the materials in contact.

[0027] For example, the PSA layer or pressure-sensitive adhesive layer in an adhesive tape is adhesive based on their physicochemical properties and the adhesion is determined by physical action. In contrast to some reactive adhesives, the PSA layer cannot form a chemical bond with the substrate. Essential for the manifestation of adhesion is a microscopic interfacial effect such as wetting of the substrate surface, which is determined by the "softness" of the PSA layer and the "softness" of the surface structure of the substrate and also by the molecular electrical properties of the surface of the material to be adhered. However, substantially, it is important to bring about as wide and close contact as possible in the region between the PSA layer and the substrate.

[0028] Many adhesive systems utilize changes in physical state, such as drying, crosslinking, cooling, etc., on the one hand to achieve the desired surface contact and, on the other hand, to exhibit sufficient adhesion and cohesion for force transmission, i.e., the adhesive action. These changes in physical state are brought about by setting chemical processes (e.g., crosslinking, polymerization, etc.) or physical processes (e.g., cooling, evaporation of solvents, etc.). These possibilities are negated for the PSA layer. The PSA layer must be sufficiently "soft" to enable intimate surface contact and at the same time sufficiently "hard" or cohesive to be able to transmit the adhesive force. PSA is a viscoelastic material. This material is never a pure substance but, instead, a technical Mixing product composed of a number of substances, e.g., a plurality of polymers with different molecular weights, different sequences, initiator molecules, emulsifiers, stabilizers, reaction regulators, solubilizers, etc. In this case, the important parameters in the properties of the resulting material are not available to those skilled in the development of chemical products in construction.

[0029] A common assumption is that for pressure-sensitive adhesiveness, the glass transition temperature of the PSA layer needs to be at least 15 K to about 35 K lower than the working temperature. Furthermore, adhesion is affected by, for example, van der Waals forces, dipole forces, etc. 、 attractive and repulsive forces Separate forces such as Here, the chemical structure of the surfaces involved plays an important role, and in fact, this is not known in sufficient detail.

[0030] Despite many conceptual approaches to this, there is no reliable computable model for how to achieve proper adhesion to a specific substrate. However, it is known that adhesion proceeds not only depending on the properties of the PSA layer or the substrate surface, but only by the interaction between the surfaces in question. This means that different adhesions are obtained on various substrate surfaces using PSA layers. Generally, those skilled in the art of chemical industry product development do not have complete facts about the structure and properties of the substrate surface and do not have detailed information about the exact chemical composition of the raw materials. The adhesion properties are confirmed only by empirical research, and appropriate products are developed accordingly. Therefore, in reality, those skilled in the art of chemical industry product development must formulate appropriate solutions from the available raw material options and subject them to target tests. In summary, since there is a complete lack of relevant information about the surfaces, adhesives, and other related materials, as well as applicable and reliable theories about the adhesion mechanism on the one hand, the detailed chemical composition of the adhesive is not relevant to the technical development of adhesive products.

[0031] For these reasons, the pressure-sensitive adhesives and PSA layers manufactured from them will typically be characterized by parameters, as is evident from, for example, Chapter 2, "How pressure sensitive adhesives work", Chapter 8, "Design", and Chapter 9, "Testing" of "Pressure Sensitive Adhesive Tapes, A guide to their function, design, manufacture, and use" by John Johnston, 2013. Therefore, the development of such parameters is of the utmost concern to those skilled in the art so that these parameters can be considered in both ongoing product development and specific projects.

[0032] It should be noted here that the adhesion of an adhesive such as PSA or other adhesives can be appropriately adjusted by reduction means that can achieve, for example, a reduction in the adhesiveness of PSA. The reduction can be achieved, for example, by the addition of particles and / or polymer solutions and / or waxes, and / or by crosslinking.

[0033] In a first aspect, the present invention - at least one base film having an adhesive affinity surface on one side, - a pressure-sensitive adhesive layer disposed on one side of the base film facing the surrounding environment and opposite to the adhesive affinity surface, and relates to a one-sided self-adhesive adhesive film comprising a peelable backing layer adheres to the adhesive affinity surface of the base film, and on the surface of the peelable backing layer on the side opposite to the adhesive affinity surface of the base film, the pressure-sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less as measured according to Finat FTM 10, and / or on the adhesive affinity surface, the pressure-sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less as measured according to Finat FTM 10.

[0034] In certain embodiments, the peelable backing layer adheres to the adhesive affinity surface with a limited force, and more specifically, has an adhesive force of 0.05 to 2.50 N / 50 mm, preferably 0.10 to 1.25 N / 50 mm as measured according to Finat FTM 10.

[0035] In certain embodiments, for example, when the film is provided as a roll or laminate, the releaseable backing layer remains on the adhesive affinity surface of the substrate film when separation of the one-sided self-adhesive film occurs, such as by peeling or unrolling. Thus, in particular, the releaseable backing layer can remain on the film substrate when attached to the substrate, thereby facilitating attachment of the one-sided self-adhesive film to the substrate, in particular providing the possibility of a simple and wrinkle-free attachment by hand, and thus enabling easy attachment of a relatively wide one-sided self-adhesive film to the substrate.

[0036] The present invention does not particularly limit the substrate film when there is an adhesive affinity surface on one side of the substrate film. As used herein, the substrate film may be in the form of a single-layer or multi-layer film having two or more layers, or other composite materials. The substrate film may be configured as one or more layers having, for example, an aggregate including woven fabric, paper, and / or non-woven fabric. In particular, it is non-permeable to the PSA of the PSA layer.

[0037] When the PSA layer is applied, there are no particular restrictions on the material of the base film. For example, the base film may be configured as a metal foil or a metal layer and / or a polymer film having an aggregate including, for example, woven fabric, paper, and / or non-woven fabric. As the polymer, the material may be foamed. In certain embodiments, the base film contains or consists of a polymer material. There are no particular restrictions on the polymer of the base film in this case. For example, it may include a polymer material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyamide (PA), polyester (PES), polyethylene-propylene (PEP), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyolefin (PO), polyvinyl chloride (PVC), polycarbonate (PC), polyurethane (PU), and / or their copolymers, and / or their mixtures, and / or their composites, or may be composed of a polymer material selected from the above group. When a foam is used or used in combination on the base film or on one layer in a multi-layer base film, the foam may include, for example, a polymer material from the group of polyethylene (PE), polypropylene (PP), aromatic and / or aliphatic polyamide (PA), aliphatic and / or aromatic polyester (PES), polyethylene-propylene (PEP), polyether, polyurethane, polyethylene terephthalate (PET), polylactide, polyolefin, and / or polyvinyl chloride, and / or their copolymers, and / or their mixtures. However, the materials described by way of example do not limit the base film.

[0038] To create an affinity surface, the surface of the base film can be provided, for example, by corona treatment and / or plasma treatment and / or adhesion promotion treatment such as primer coating or adhesion promoter layer, and / or by application of a suitable adhesion affinity material such as suitable paper, woven fabric and / or non-woven fabric, etc., which are not subject to specific restrictions and may be adjusted according to the material of the base film. Also, for example, the adhesion affinity surface of the base material may include, without particular limitation, polymers, natural substances, metals or alloys, ceramics, and / or modified surfaces by surface treatment. It may be smooth or non-smooth as well. Generally preferred examples of adhesion affinity surfaces are the surfaces of base films treated with suitable surface treatments such as corona treatment and / or plasma treatment; the surfaces of base films to which primer coatings or adhesion promoter layers are applied; and / or the surfaces of base films to which suitable adhesion affinity materials such as paper, woven fabric and / or non-woven fabric are applied.

[0039] Therefore, it is also possible to use any combination of suitable surface treatment, application of an adhesion promoter layer, and application of an adhesion affinity material such as paper, woven fabric, and / or non-woven fabric to create the adhesion affinity surface of the base film. For example, the surface of the base film may be treated, an adhesion promoter layer may be applied thereon, and / or an adhesion affinity material such as paper, woven fabric and / or non-woven fabric may be applied. Also, for example, it is possible to apply an adhesion promoter layer and an adhesion affinity material such as paper, woven fabric and / or non-woven fabric to the surface of the base film. Similarly, it is also possible to subsequently perform surface treatment on these layers, for example.

[0040] Needless to say, any one suitable surface treatment such as corona treatment and / or plasma treatment, application of an adhesion promoter layer, or application of an adhesion affinity material such as paper, woven fabric and / or non-woven fabric is possible to create the adhesion affinity surface of the base film.

[0041] Surface treatment, application of an adhesion promoter layer, and application of an adhesion affinity material are not subject to specific limitations in any case in this specification.

[0042] Examples of suitable surface treatments include corona treatment and / or plasma treatment, without specific limitations and may be suitably adapted to the material of the substrate film.

[0043] For example, when an adhesion promoter coating is used, it is similarly not limited and may be adjusted according to, for example, the material of the substrate film. The adhesion promoter layer may include, for example, polymer materials such as polyacrylate, polystyrene, polyvinyl ester, polyvinyl alcohol, polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polyurethane, and / or their copolymers, and / or their mixtures, without specific limitations.

[0044] Also, there are no specific limitations on the adhesion affinity material, which may include, for example, paper, woven fabric, and / or non-woven fabric. The paper, fabric, and non-woven fabric are not particularly limited. Suitable non-woven or woven fabrics may include materials selected from the group including polymers such as glass, metal, carbon, rayon staple (rayon fiber), polyethylene, propylene, polyamide, polyester, polyacrylonitrile, and / or their copolymers, and / or their mixtures, and / or their combinations. This adhesion affinity material may be suitably adhered to the surface of the substrate film, for example, according to the material of the surface of the substrate film and / or the adhesion affinity material. For example, the adhesion affinity material may be adhered by adhesion, partial melting, etc.

[0045] In particular, if a normal construction adhesive can adhere well, for example, on an adhesion affinity surface, generally there are no limitations in preparing the adhesion affinity surface of the substrate film.

[0046] The other side of the substrate film, which is the opposite side of the adhesion affinity surface, and its properties are such that the PSA layer adhered thereon adheres well.

[0047] Similarly, the PSA layer is not subject to specific restrictions. More specifically, the material of the PSA layer is not subject to specific restrictions and may include a mixed material. The PSA layer may be implemented, for example, in the form of a hot melt adhesive, a solvent-containing adhesive, or a dispersion adhesive. By way of example, the PSA layer may consist of a PSA material selected from the group consisting of pressure-sensitive adhesives based on rubber, natural rubber, synthetic rubber such as styrene-butadiene block copolymer (SBS), chloroprene rubber, polyurethane, styrene acrylate, vinyl acetate, vinyl acetate-ethylene, vinyl versatate (vinyl versatic acid ester), polyethylene-vinyl acetate, polyethylene-vinyl versatate, polyacrylate, and / or their copolymers, and / or their mixtures, or may include these PSA materials. However, these do not limit the PSA layer.

[0048] An exemplary one-sided self-adhesive film having an adhesive affinity surface is, for example, an adhesive tape composed of a base film, a PSA layer, and a surface on the opposite side thereof that is adhesive-affine to other adhesives and / or leveling compounds.

[0049] In a roll or laminate of the one-sided self-adhesive film of the present invention, or generally between two one-sided self-adhesive films overlapping each other, for example If pasted to prevent sticking The act of pasting the peel adhesion force, that is, the adhesive force, between the upper surface of the one-sided self-adhesive film, such as an adhesive tape, and the PSA layer needs to be 2.50 N / 50 mm or less at maximum as measured according to Finat FTM10. This is inconsistent with the intention that the adhesive affinity surface of the base material layer is adhesive-affine with respect to various conventional adhesives and other substances such as leveling compounds for construction applications for the one-sided self-adhesive film of the present invention. The present invention can solve this contradiction by various means.

[0050] For example, the adhesive-affinity surface of the one-sided self-adhesive film may be such that the PSA layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, as measured according to Finat FTM 10. In particular 、 it has an adhesive force of less than 15 N / 25 mm, preferably less than 10 N / 25 mm, as measured according to DIN EN 1939:2003 In the case of a weakly adhering PSA layer having and this can be achieved. For example, this can be achieved by structuring the surface.

[0051] For example, the surface structure of the upper side (adhesive-affinity substrate surface) of a one-sided self-adhesive sheet such as an adhesive tape can be configured so that the contact area with respect to the PSA layer decreases such that the adhesive force at the adhesive-affinity surface of the PSA layer is 2.5 N / 50 mm or less, preferably 1.25 N / 50 mm or less. By structuring the adhesive-affinity substrate side of the one-sided self-adhesive film so that the contact area between the PSA layer and the adhesive-affinity surface of the substrate becomes as small as the above-mentioned degree during winding, it is possible to prevent them from sticking (adhering) to each other, and at the same time Adhesion it can be further coated with an adhesive or a leveling compound so that the entire surface can maintain adhesive affinity. This solution is particularly suitable for one-sided self-adhesive tapes having an appropriate adhesive force of the PSA layer, which exhibit a peel force of less than 15 N / 25 mm, preferably less than 10 N / 25 mm, according to DIN EN 1939:2003.

[0052] The structuring can be achieved, for example, by an embossed substrate surface or, for example, by adhesion and reliable contact to the substrate surface by a textile structure such as rayon staple or cotton (the textile structure is not limited to these). This textile structure may be appropriately attached to the substrate film, for example, by means of an appropriate adhesive or melting, and there are no particular restrictions on the attachment.

[0053] The embossing and / or fabric structure can further increase the interengagement with additional adhesives. For example, a fabric structure or structuring such as embossing is appropriate.

[0054] In certain embodiments, the adhesive - affinity surface of the substrate film for this purpose has a fabric structure and / or is structured.

[0055] For example, the adhesion of the PSA layer on an adhesive - affinity surface of 2.5 N / 50 mm or less, preferably 1.25 N / 50 mm or less can be achieved, for example, by reducing the PSA contact surface area of the adhesive - affinity surface by structuring to, for example, 20% (area / area) or less, preferably 10% or less, more preferably 5% or less of the original total area, or in the case of a fabric structure, by reducing the PSA contact surface area of the adhesive - affinity surface to, for example, 20% or less, preferably 10% or less, more preferably 5% or less of the original total area. Thus, the peel - adhesion force between the PSA layer of the one - side self - adhesive film and the structured or fabric - structured adhesive - affinity surface can be consequently reduced to about 20% or less, preferably 10% or less, more preferably 5% or less of the peel - adhesion force on the corresponding smooth surface. Thereby, the adhesion force between the PSA layer and the adhesive - affinity substrate surface can be improved to 100%, and the roll or sheet laminate To paste adheres To paste without, for example, being lifted to 25 N / 25 mm or 1.0 N / mm. The structuring or fabric structure according to the present invention may be realized by, for example, a fabric structure without other limitations such as a coarse fabric, or embossing without specific limitations either.

[0056] In certain embodiments, the fabric structure and / or the structured top (most protruding) surface of the adhesive-affinity surface of the substrate film facing the surrounding environment constitutes 20% or less, such as 10% or less, such as 5% or less of the fabric structure and / or the structured standard surface (reference area). For example, this can be determined by treating the surface with ink, printing a fine halftone thereon, and then evaluating the halftone treatment.

[0057] In another embodiment, the structured top (most protruding) peaks may be given an adhesion reduction treatment such that only these peaks reduce their adhesion and the remaining surface maintains its adhesive affinity. This also makes it possible to adhere the PSA layer more firmly.

[0058] Thus, in the case of a one-sided self-adhesive film having a PSA layer that adheres relatively strongly, the fabric structure or embossing at the structured top (most protruding) peaks may be additionally provided by an adhesion reduction layer, preferably not spreading over the entire area and structure, but still leaving a sufficiently large adhesive-affinity surface on the side facing the substrate for reliable adhesion by the subsequent adhesive. In certain embodiments, the fabric structure or embossing at the structured top (most protruding) peaks is additionally provided by an adhesion reduction layer such that the adhesion reduction layer does not spread over the entire area and structure. There is no particular limitation on the adhesion reduction layer herein. For example, the adhesion reduction layer may be chemically and / or physically modified and / or coated and / or contain an adhesion reduction material such as polysiloxane or polytetrafluoroethylene.

[0059] Thus, in certain embodiments, the fabric structure and / or structuring of the adhesive affinity surface of the substrate film on the side facing the surrounding environment has an adhesion-reducing surface, which preferably constitutes only the top (most protruding part) of the fabric structure and / or structuring on the surface of the substrate film facing the surrounding environment, and thus constitutes (occupies) a maximum of 20%, preferably a maximum of 10%, more preferably a maximum of 5% of the total surface area on the side facing outward as seen from the substrate film.

[0060] In certain embodiments, the fabric structure is contacted with the substrate film and / or the fabric structure is produced by embossing the substrate film.

[0061] Furthermore, in a preferred embodiment, a peelable backing layer may alternatively or additionally adhere to the adhesive affinity surface of the substrate, preferably being able to adhere weakly to the adhesive affinity surface of the substrate. In other embodiments, for example, a one-sided self-adhesive film in a wound or laminated state, such as a roll of adhesive tape or a laminate of adhesive sheets The act of pasting attachment The act of pasting To prevent this, the opposite side of the backing layer may be subjected to an adhesion-reducing treatment. Similarly, in this embodiment, a structure and / or fabric structure may be applied to the adhesive affinity surface of the substrate.

[0062] There is no further definition of the peelable backing layer (preferably weakly adhering). The backing layer may be, for example, paper, non-woven fabric, woven fabric, a layer such as a film layer, or a combination thereof, or may include these.

[0063] Thus, the one-sided self-adhesive tape Pasted attachment To pasteIt can be wrapped or unwound without problems and can be easily attached to or rubbed against a substrate. In this specification, the adhesive-affinity surface of the one-sided self-adhesive film is protected from damage, dirt, and other harmful effects or damage by a peelable backing layer (e.g., by weakly adhering). In a later step, the adhesive-affinity surface of the adhesive film can be exposed simply by peeling off the peelable backing layer, and is further prepared in a complete state for subsequent use. Of adhesion for subsequent use.

[0064] In some embodiments, the peelable backing layer is present on the adhesive-affinity surface of the base film, and the peelable backing layer on the side facing the adhesive-affinity surface of the base film has an adhesive layer having an adhesive force of 0.05 to 2.50 N / 50 mm measured according to Finat FTM10 on the adhesive-affinity surface of the base film. In this way, this layer can remain on the base film without damaging the self-adhesive film or the adhesive-affinity surface during unwinding, pulling out from the laminate, etc., but can be peeled off (removed) easily for further use.

[0065] In this specification, there is no particular limitation on the adhesive layer. For example, the adhesive layer may be a polymer layer that adheres very weakly, such as a pressure-sensitive adhesive, and a mixture with an adhesion-reducing additive such as a filler (e.g., particulate solid, inorganic or organic), wax, polymer particles, etc. The adhesive layer may be configured, for example, as a hot-melt adhesive, a solvent-containing adhesive, or a dispersion adhesive. Exemplarily, the adhesive layer consists of or contains an adhesive material, and the adhesive material is not particularly limited. The adhesive material in this case may include, for example, a pressure-sensitive adhesive and an adhesion-reducing component, neither of which is particularly limited. For example, the pressure-sensitive adhesive can be selected from the group consisting of rubbers, natural rubbers such as styrene-butadiene block copolymer (SBS), chloroprene rubber, polyurethane, styrene-acrylate, vinyl acetate, vinyl acetate-ethylene, vinyl versatate, polyethylene-vinyl acetate, polyethylene-vinyl versatate, polyacrylate, and / or their copolymers, and / or their mixtures, but the pressure-sensitive adhesive is not limited thereto. The adhesion-reducing component may be composed of a material selected from the group consisting of, for example, particles (e.g., in the form of dispersions, powders, and / or fibers) based on wax, starch, polymers, inorganic substances, cellulose, and / or their mixtures, but is not limited thereto.

[0066] However, if the adhesion achieved with such a layer on the adhesion-affinity surface of the base film is, in particular, between 0.05 and 2.50 N / 50 mm as measured according to Finat FTM10, the adhesive materials exemplified do not limit the adhesive layer.

[0067] As a result of the presence of the release backing layer, the adhesion affinity of the adhesion-affinity surface of the substrate film can be effectively maintained, and the surface remains without being damaged, while the releasable backing layer can also be easily peeled off manually. Correspondingly, particularly in the presence of a releasable backing layer to which an adhesive layer is attached, manual work involving attachment to the substrate is easy. Because, for example, during unwinding from a roll or removal from a laminate, the releasable backing layer can first stay on the one-sided self-adhesive film, and thus, the one-sided self-adhesive film can be attached to the substrate, but then it can be easily separated and peeled off from the one-sided self-adhesive film. In this procedure, neither the adhesion of the one-sided self-adhesive film on the substrate by the PSA layer nor any further treatment due to damage to the adhesion-affinity surface is adversely affected.

[0068] In some embodiments, the releasable backing layer is present on the adhesion-affinity surface of the substrate film, and the releasable backing layer has an adhesion-reducing layer on the side opposite to the adhesion-affinity surface and facing the surrounding environment. Next, this adhesion-reducing layer contacts the PSA layer, for example, when winding the one-sided self-adhesive film or laminating them together. However, this enables the PSA layer to be easily peeled off again from the releasable backing layer during unwinding or lifting from the laminate.

[0069] The adhesion-reducing layer of the weakly adhered backing layer is not very strictly defined. It may be, for example, silicone, wax, polyfluorinated polymers such as Teflon, POM (polyoxymethylene), etc., or may include these, but is not limited thereto.

[0070] In some embodiments, the releasable backing layer is present on the adhesive-affinity surface of the substrate film, the side of the releasable backing layer facing the adhesive-affinity surface of the substrate film has an adhesive layer, and the adhesive force of the adhesive layer of the releasable backing layer on the adhesive-affinity surface of the substrate film is at least twice (e.g., three times) the adhesive force of the pressure-sensitive adhesive layer of the self-adhesive film on the adhesion-reducing layer of the backing layer. In this way, for example, when unrolling or removing from a laminate, it is particularly possible to prevent the releasable backing layer from peeling off when the PSA layer is peeled. More specifically, on the adhesive-affinity surface of the substrate, the adhesive force of the weakly adhering adhesive layer of the releasable backing layer should be at least about twice the adhesive force of the PSA layer of the one-sided self-adhesive film - such as an adhesive tape or an adhesive sheet - in the adhesion-reducing layer of the releasable backing layer.

[0071] Furthermore, for practical use, the adhesive force of the weakly adhering adhesive layer on the adhesive-affinity surface of the substrate is in the range of 0.05 to 2.50 N / 50 mm measured according to Finat FTM 10, and the adhesive force of the PSA layer of the one-sided self-adhesive film (e.g., a self-adhesive film or an adhesive sheet) on the substrate where adhesion is performed is found to be at least twice as large as the adhesive force of the adhesive layer of the releasable backing layer on the adhesive-affinity substrate. In particular, it is found that the effective and practical adhesive values of the adhesive layer can be adjusted respectively to the minimum adhesive force of the PSA layer in the self-adhesive film or the adhesive sheet on the substrate where adhesion is performed. These adhesive forces can be measured, for example, by a method based on DIN EN 1939:2003, and preferably are at least twice as large as the adhesive value of the weakly adhering adhesive layer on the adhesive-affinity surface of the substrate.

[0072] More specifically, it is found that the adhesive force with the weakly adhering adhesive layer shows a maximum of 50% of the adhesive force of the PSA layer on the substrate where adhesion is performed in order to ensure the possibility of effectively peeling the releasable backing layer without the one-sided self-adhesive film of the present invention being further peeled off as a whole.

[0073] In certain embodiments, the adhesion of the adhesive layer of the releasable backing layer on the adhesion - friendly surface of the base film, as measured according to Finat FTM 10, is the adhesion of the pressure - sensitive adhesive layer of the self - adhesive film on the substrate to which the adhesion is performed, and is, for example, up to 50% of the adhesion measured by a method based on DIN EN 1939:2003. In this context, the expression "by a method based on DIN EN 1939:2003" means that the measurement is performed in the same way as in the case of DIN EN 1939:2003, but the substrate specified in such a standard is replaced by the above - mentioned substrate in the measurement.

[0074] The measurement of adhesion is performed in the same way as DIN EN 1939:2003 using the same test method, but a substrate specific to the research subject may be used. This means that the whole test is performed strictly in accordance with the requirements of DIN EN 1939:2003, but the substrate specified therein is replaced by the substrate specific to the research subject. According to the standard, after application in accordance with the standard - specified method, the measurement is carried out. The test is carried out under standard conditions, i.e., 23 °C, 50% relative Relative humidity.

[0075] Note that the measurement complies with DIN EN 1939:2003. For this purpose, the test piece is Specific standard adhered to the substrate and tested according to the method described in DIN EN 1939:2003.

[0076] In certain embodiments, the adhesion of the adhesive layer (e.g., a weakly adhering adhesive layer) is in the range between 0.05 N / 50 mm and 2.50 N / 50 mm as measured according to Finat FTM 10, and the adhesion of the adhesive layer on the adhesion-affinity surface of the substrate film is at least about two times greater than the adhesion of the PSA layer of the one-sided self-adhesive film (e.g., adhesive tape) on the adhesion-reducing layer of the backing layer. The adhesion of the PSA layer on the adhesion-reducing layer of the peelable backing layer is, more specifically, in the range from 0.05 N / 50 mm to 1.25 N / 50 mm as measured according to Finat FTM 10.

[0077] Specifically, in certain embodiments, the standard-compliant adhesion is achieved on the adhesion-affinity surface of the present invention using conventional adhesives typical in the construction field. For example, for floor covering adhesives, a peel force of at least 0.5 N / mm is measured by a method based on DIN EN 1372:2015, and for wood floor covering adhesives, an adhesion strength of at least 1.0 N / mm 2 is measured by a method based on DIN EN 14293:2006, for mineral tile adhesives, an adhesion strength of at least 0.5 N / mm 2 is measured by a method based on SN EN 1348:2007, and for leveling compounds, an adhesion strength of at least 1.0 N / mm 2 is measured by a method based on EN 13892-8:2003, and / or for pressure-sensitive adhesives for construction applications, a peel force of at least 5.0 N / 25 mm is measured by a method based on DIN EN 1939:2003.

[0078] Typical adhesives in the construction field are, more specifically, dispersion adhesives, 1K PU, 2K PU, 2K epoxy, or MS adhesives, and are employed in specific applications in construction, such as the adhesion of floor coverings. There are no special restrictions on the adhesives.

[0079] In certain embodiments, standard-compliant adhesion is achieved on the adhesion-affinity surface of the base foil using an adhesive selected from a dispersion adhesive, 1KPU, 2K PU, 2K epoxy, or MS adhesive. Thus, on the adhesion-affinity surface of the base foil, preferably using a floor covering adhesive, a peel strength of at least 0.5 N / mm is obtained as measured by the method based on DIN EN 1372:2015, and using a wood floor covering adhesive, an adhesion strength of at least 1.0 N / mm 2 is obtained as measured by the method based on DIN EN 14293:2006, and using a mineral tile adhesive, an adhesion strength of at least 0.5 N / mm 2 is obtained as measured by the method based on SN EN 1348:2007, and using a leveling compound, an adhesion strength of at least 1.0 N / mm 2 is obtained as measured by the method based on EN 13892-8:2003, and using a pressure-sensitive adhesive for building applications, particularly for floor covering or staircase covering, a peel strength of at least 5.0 N / 25 mm is obtained as measured by the method based on DIN EN 1939:2003. In this case as well, "by the method based on" in relation to a specific measurement means that the surface specified in the standard is replaced by the surface of the base foil, but otherwise means that the measurement is carried out in accordance with the standard. Also in these measurement methods, "by the method based on" means that the measurement is carried out on the corresponding adhesion-affinity surface instead of the surface specified in the standard, but otherwise the standard conditions are observed.

[0080] In certain embodiments, the one-sided self-adhesive film is configured, for example, as a roll, as an adhesive tape, or as a sheet such as an adhesive sheet.

[0081] In certain embodiments, the self-adhesive film of the present invention comprises a moisture-proof layer and / or a plasticizer barrier layer, both without any particular limitation.

[0082] The moisture-proof layer is understood to be a retarder for the diffusion of water in general, such as moisture movement or moisture diffusion by penetration. The same applies to the plasticizer barrier layer that can prevent the permeation of the plasticizer. For this purpose, typically used layers may be employed, for example, they may be integrated into the base film.

[0083] If it acts as a protective agent against moisture, there are no particular restrictions on the at least one moisture-proof layer, for example, it may be a polymer, metal and / or ceramic, such as a metal oxide layer.

[0084] Examples of suitable metals include Al, Cu, Ag, Au, Ti, Cr, Ni, Pd and / or Pt, which may be provided in the form of foils and / or may be coated, for example, by vapor deposition. Examples of suitable metal oxides include aluminum oxide, silicon dioxide, titanium oxide, etc., and mixed oxides. Also, the at least one moisture-proof layer (moisture retardation layer) may be designed as a polymer, for example, it may contain or be composed of a material selected from the group consisting of polypropylene (PP), polyethylene (PE), polyolefin (PO), latex, nitrile rubber (NBR), styrene-butadiene rubber (SBR), polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl acetate (PVAC), polyurethane (PU), and / or their copolymers, and / or their mixtures.

[0085] The material of the barrier layer that is impermeable to the plasticizer prevents the passage of the plasticizer and is not particularly limited herein if it is, for example, a polymer, metal, and / or ceramic, i.e., if it contains and / or is composed of one or more polymers, metals, and / or ceramics. The barrier layer that is impermeable to the plasticizer may be, for example, a layer containing and / or composed of a metal, metal oxide, and / or polymer. The polymer includes polyethylene terephthalate (PET), aromatic and / or aliphatic polyamide (PA), aliphatic and / or aromatic polyester (PES), polymethyl methacrylate (PMMA), polyacrylonitrile (PAN), polyvinyl chloride (PVC), polycarbonate (PC), polyurethane (PU), polyvinyl acetate (PVAC), polyvinyl alcohol (PVOH), and / or their copolymers, and / or their mixtures.

[0086] In certain embodiments, at least one moisture-proof layer and / or at least one barrier layer that is impermeable to the plasticizer as required are integrated into the base film.

[0087] In certain embodiments, the one-sided self-adhesive film has a width of at least 300 mm, preferably at least 350 mm, more preferably at least 400 mm, for example at least 500 mm. In the one-sided self-adhesive film of the present invention, even when the one-sided self-adhesive film is relatively wide, manual work without wrinkles is possible. This is particularly true when there is a peelable backing layer.

[0088] Furthermore, - at least one base film having an adhesive-affinity surface on one side, - a pressure-sensitive adhesive layer disposed on one side of the base film facing the surrounding environment and opposite to the adhesive-affinity surface, and a method for manufacturing a one-sided self-adhesive film is disclosed. A peelable backing layer is attached to the adhesion - affinity surface of the base film, and on the surface of the peelable backing layer on the side opposite to the adhesion - affinity surface of the base film, the pressure - sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, measured according to Finat FTM 10. The pressure - sensitive adhesive layer is attached to the base film on one side of the base film facing the surrounding environment and on the side opposite to the adhesion - affinity surface. The peelable backing layer is attached to the adhesion - affinity surface of the base film. The peelable backing layer is attached before, at the same time as, or after the first pressure - sensitive adhesive layer, and / or The pressure - sensitive adhesive layer is attached to the base film on the side opposite to the adhesion - affinity surface of the base film, and on the adhesion - affinity surface of the base film, the pressure - sensitive adhesive layer has an adhesive force of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, measured according to Finat FTM 10.

[0089] In the method of the present invention, in particular, it is possible to manufacture the one - side self - adhesive film of the present invention. Therefore, each layer may be designed as described above for the one - side self - adhesive film of the present invention. There is no particular limitation on the respective application of each layer. Making an adhesion - affinity surface on a part of the base film can be realized as described above.

[0090] In certain embodiments, the peelable backing layer is attached to the adhesion - affinity surface of the base film. Before the peelable backing layer is attached to the adhesion - affinity surface of the base film, an adhesive layer is attached to the peelable backing layer, and the peelable backing layer is preferably attached to the base film such that the adhesive layer on the peelable backing layer contacts the adhesion - affinity surface of the base film. The adhesive layer on the adhesion - affinity surface of the base film has an adhesive force of 0.05 - 2.50 N / 50 mm, preferably 0.10 - 1.25 N / 50 mm, according to Finat FTM 10.

[0091] The application of the adhesive layer to the peelable backing layer is not subject to specific limitations herein. The adhesive layer herein may have the properties and configurations as described in connection with the one-sided self-adhesive film of the present invention.

[0092] Also, in certain embodiments, a release-reducing layer may be attached to the peelable backing layer before the peelable backing layer is attached to the adhesion-affinitive surface, which is done such that when the peelable backing layer is attached to the adhesion-affinitive surface, a release-reducing layer exists on the side of the peelable backing layer opposite to the adhesion-affinitive surface and facing the surrounding environment. Also, the application of the release-reducing layer is not particularly limited. Based on material film Of the base When attached to the adhesion-affinitive surface, a release-reducing layer is present on the side of the peelable backing layer opposite to the adhesion-affinitive surface and facing the surrounding environment. Also, the application of the release-reducing layer is not particularly limited.

[0093] When both the adhesive layer and the release-reducing layer are attached to the peelable backing layer, they are attached to both sides of the peelable backing layer, and they may be attached continuously or simultaneously. Herein, preferably, the release-reducing layer is attached first.

[0094] In certain embodiments, the peelable backing layer may remain on the adhesion-affinitive surface of the base film, such as an adhesive film roll or laminate, upon separation, for example, by pulling or unwinding.

[0095] In certain embodiments, the adhesion-affinitive surface of the base film is produced by physical and / or chemical pretreatment, coating of the base film, embossing (embossing), and / or joining of a fabric structure to the base film. The surface of the base film may be subjected to, for example, an adhesion-promoting treatment to produce an adhesion-affinitive surface, for example, by corona treatment and / or plasma treatment and / or using a primer coating or adhesion promoter layer, and / or, for example, by attachment of a suitable adhesion-affinitive material such as a suitable woven or non-woven fabric, without specific limitations and may be adjusted according to the material of the base film and / or the material of the construction adhesive. In certain embodiments, the PSA layer has an adhesion of 2.50 N / 50 mm or less, preferably 1.25 N / 50 mm or less, as measured according to Finat FTM 10, on the adhesion - friendly surface of the substrate film.

[0096] Furthermore, the present invention relates to a method of attaching the one - sided self - adhesive film of the present invention - particularly in its entirety - onto a substrate such as a floor, staircase, or wall, and includes the following. Attaching the one - sided self - adhesive film to the substrate, Rubbing and / or stretching the one - sided self - adhesive film on the substrate, Optionally removing the release liner of the one - sided self - adhesive film, Optionally, an adhesive, Mortar and / or a leveling compound (e.g., a self - leveling compound or a wall - smoothing compound) is attached to the adhesion - friendly surface of the one - sided self - adhesive film. Mortar And / or on top of the leveling compound, and then, for the floor Coating material it is possible to apply additional coatings such as wall coverings. Mortar Or the leveling compound is not subject to specific restrictions. Also, for the attachment method, rubbing and / or stretching on the substrate, the optional removal of the release liner, the optional attachment of the adhesive, Mortar and / or the leveling compound (e.g., a self - leveling compound) to the adhesion - friendly surface of the one - sided self - adhesive film, there are no specific restrictions either. The steps can be carried out according to the relevant art.

[0097] For example, the substrate, which can be a floor, staircase, or wall, is likewise not particularly limited herein in terms of material and / or properties / hardness.

[0098] In certain embodiments, the one-sided self-adhesive film is adhered with a width of at least 300 mm, preferably at least 350 mm, more preferably at least 400 mm, for example at least 500 mm. In the one-sided self-adhesive film of the present invention, even when the one-sided self-adhesive film is relatively wide, it is possible to adhere it manually without wrinkles. This is especially true when there is a peelable backing layer. There is no particular upper limit on the width of the one-sided self-adhesive film. For example, a one-sided self-adhesive film having a width up to 1.20 m may be provided and can be properly adhered onto a substrate.

[0099] In certain embodiments, a leveling compound and / or an adhesive is adhered to the adhesion-affinity surface and / or the substrate surface of the one-sided self-adhesive film, and a floor covering material is adhered to the leveling compound and / or the adhesive. The floor covering material herein is not particularly limited and includes, for example, PVC, CV, carpet, linoleum, wooden floor, rubber, cork covering, etc.

[0100] Furthermore, the use of the one-sided self-adhesive film of the present invention for applying a leveling compound and / or, preferably, an adhesive different from the pressure-sensitive adhesive of the pressure-sensitive adhesive layer, particularly over the entire area onto a substrate, is disclosed. Thus, the one-sided self-adhesive film of the present invention acts as an intermediary (mediator) for adhesion to a substrate where, for example, the adhesive and / or the leveling compound in that case does not adhere sufficiently or cannot be adhered for other reasons. Further functionalization treatments can be further realized herein, for example, by additional layers such as a moisture-proof layer and / or a plasticizer barrier layer to obtain proper protection of adhesives and / or leveling compounds such as floor covering materials.

[0101] The above embodiments, improvements, and developments can be arbitrarily combined with each other as long as they are reasonable. Further possible improvements, developments, and implementations of the present invention include combinations that do not explicitly describe the features of the present invention described above or below with respect to the examples. In particular, those skilled in the art can also add individual aspects as improvements or additions to each basic form of the present invention.

[0102] The present invention shows several exemplary embodiments below, but these embodiments are not subject to any restrictions.

Example

[0103] (Example 1) An exemplary configuration of the one-sided self-adhesive film of the present invention is as follows (for example, when viewed from above during attachment to a substrate): - Adhesion reduction layer of the release backing layer: silicone - Substrate of the release backing layer: for example, paper, film - Adhesion layer of the release backing layer, exemplified below - Adhesion-affinity surface of the substrate film produced by corona treatment or the like of the substrate film - Substrate film: a polymer film or a multilayer film such as a PP film or a PET film, for example - Pressure-sensitive adhesive layer with a peel adhesion force exceeding 15 N / 25 mm with respect to DIN EN 1939:2003 - Adhesion force of the PSA layer on the adhesion reduction layer of the release backing layer <1 N / 50 mm, and more specifically, 0.3 N / 50 mm according to Finat FTM10

[0104] This material is formed according to the present invention Sheet in the form and wound into a roll.

[0105] Table 1 below shows an appropriate composition example of the adhesive layer in Example 1 and the adhesion force of the adhesive layer on the adhesion-affinity surface of the substrate film. The materials used for the adhesive layer were as follows: Pr31L-105: 50% by mass of Alberdingk AC 75063 and 50% by mass of Alberdingk U3251; Pr31L-106: 50% by mass of Primal / Axilat 4801 and 50% by mass of Alberdingk U3251; Pr31L-114: 30% by mass of BASF Acronal V212 and 70% by mass of Alberdingk U3251 The applied adhesive layer had a layer thickness of about 20 g / m 2 of.

[0106]

Table 1

[0107] (Example 2) Another exemplary structure of the one-sided self-adhesive film of the present invention having a fabric surface on a substrate film is as follows (for example, when viewed from above during attachment to a substrate): - Adhesion reduction layer of the release backing layer: silicone - Substrate of the release backing layer: for example, paper, film - Adhesive layer of the release backing layer, exemplified below - Adhesion-affinitive surface: non-woven fabric, for example, PES spunbond 80 g / m2 - Laminating adhesive - Substrate film: for example, a polymer film such as a PP film or a PET film, or a multilayer film - Pressure-sensitive adhesive layer with a peel adhesion force exceeding 15 N / 25 mm according to DIN EN 1939:2003 - Adhesion force of the PSA layer on the adhesion reduction layer of the release backing layer <1 N / 50 mm, and more specifically here, 0.3 N / 50 mm according to Finat FTM10

[0108] This material is formed in accordance with the present invention Sheet and wound into a roll.

[0109] Table 2 below shows a formulation example suitable for the adhesive layer of Example 2 and an example of the adhesive strength of the adhesive layer on the adhesive-affinitive surface of a base film having a fabric structure. The materials used for the adhesive layer were as follows: Pr31L-121: 50% by mass of Alberdingk AC 75013 and 50% by mass of BASF acronal V212; Pr31L-157: 100% by mass of BASF Luphen D 259 U; Pr31L-154: 100% by mass of BASF Acronal A 245 The thickness of the applied adhesive layer was about 25 g / m 2 was.

[0110] [Table 2]

[0111] (Example 3) Another exemplary structure of the one-sided self-adhesive film of the present invention having a fabric surface or a structured surface on a base film is as follows (for example, when viewed from above during attachment to a substrate): - The adhesive-affinitive surface exemplified below - Laminated adhesive - Base film: a polymer film or a multilayer film such as a PP film or a PET film, for example - A pressure-sensitive adhesive layer having a peel adhesive strength of less than 10 N / 25 mm, more specifically 6.0 N / 25 mm, according to DIN EN 1939:2003

[0112] This material is formed in accordance with the present invention Sheet and wound into a roll.

[0113] A PSA layer with a peel adhesion of less than 10 N / 25 mm according to DIN EN 1939:2003 exhibits a sufficiently low adhesiveness and, at the same time, shows the adhesion measurement values on a substrate film having a fabric structure or a structured adhesion - affinity surface. Examples of suitable adhesion - affinity surfaces for Example 3 are shown in Table 3 below. The materials used for the adhesion - affinity surfaces were as follows. Pr31S - 12: Rayon staple fabric 120 g / m 2 Pr31S - 17: Huhtamaki LDPE 60219 D119 Pr31S - 24: Huhtamaki LDPE 16000 D124

[0114] [Table 3]

[0115] (Example 4) Examples of the adhesion of various adhesives on the adhesion - affinity surface of the one - side self - adhesive film of the present invention are shown below. In this case, the adhesion - affinity surface is realized by corona treatment of a PP film as the substrate film. Table 4 below shows the adhesion values achievable on the adhesion - affinity surface using various adhesives and leveling compounds.

[0116] [Table 4]

[0117] (Example 5) Examples of the adhesion of various adhesives on the adhesion - affinity surface of the one - side self - adhesive film of the present invention are shown below. In this case, the adhesion - affinity surface is realized by a polyester non - woven fabric laminated on the substrate film. Table 5 below shows the adhesion values achievable on the adhesion - affinity surface using various adhesives and leveling compounds.

[0118] [Table 5]

Claims

1. - At least one base film having an adhesive-affinity surface on one side, with a peel strength of at least 0.5 N / mm measured by a method based on DIN EN 1372:2015 using an adhesive for floor covering, Using a wood floor covering adhesive, at least 1.0 N / mm as measured by the method according to DIN EN 14293:2006 ２ of adhesion strength Using a mineral tile adhesive, at least 0.5 N / mm measured by the method based on Snen 1348:2007 ２ of adhesive strength Using a leveling compound, at least 1.0 N / mm measured by the method according to DIN EN 13892-8:2003 ２ adhesion strength, and / or and a peel strength of at least 5.0 N / 25 mm measured by a method based on DIN EN 1939:2003 using a pressure-sensitive adhesive for construction applications, obtained on the adhesive-affinity surface, a base film, and - A pressure-sensitive adhesive layer disposed on one side of the base film facing the surrounding environment and opposite to the adhesive-affinity surface, A releasable backing layer having an adhesion-reducing layer on the side opposite to the adhesive-affinity surface and facing the surrounding environment adheres to the adhesive-affinity surface of the base film, and the pressure-sensitive adhesive layer on the surface of the releasable backing layer opposite to the adhesive-affinity surface of the base film has an adhesive strength of 2.50 N / 50 mm or less measured according to Finat FTM10, The releasable backing layer has an adhesive layer on the side facing the adhesive-affinity surface of the base film, and the adhesive layer on the adhesive-affinity surface of the base film has an adhesive strength of 0.05 - 2.50 N / 50 mm measured according to Finat FTM10, The releasable backing layer is present on the adhesive-affinity surface of the base film. The releasable backing layer has an adhesive layer on the side facing the adhesive-affinity surface of the base film. The adhesive strength of the adhesive layer of the releasable backing layer on the adhesive-affinity surface of the base film is at least twice the adhesive strength of the pressure-sensitive adhesive layer of the self-adhesive film on the adhesion-reducing layer of the backing layer. A one-sided self-adhesive film.

2. The adhesive strength of the adhesive layer of the releasable backing layer on the adhesive-affinity surface of the base film measured according to Finat FTM10 is at most 50% of the adhesive strength of the pressure-sensitive adhesive layer of the self-adhesive film on the substrate on which adhesion is performed, measured by a method based on DIN EN 1939:2003. The one-sided self-adhesive film according to Claim 1.

3. The adhesive-affinity surface of the base film has a textile structure or is structured. The one-sided self-adhesive film according to any one of Claims 1 or 2.

4. The one-sided self-adhesive film according to claim 3, wherein the uppermost part of the surface of the woven structure or the structured surface facing the surrounding environment on the adhesive-affinity surface of the base film occupies 20% or less of the standard surface of the woven structure and / or the structuring.

5. The one-sided self-adhesive film according to any one of claims 1 to 4, further comprising a moisture-proof layer and / or a plasticizer barrier layer.

6. - At least one base film having an adhesive-affinity surface on one side, a peeling force of at least 0.5 N / mm measured by a method based on DIN EN 1372:2015 using an adhesive for floor covering, Using a wood floor covering adhesive, at least 1.0 N / mm as measured by the method according to DIN EN 14293:2006 ２ of adhesion strength Using a mineral tile adhesive, an adhesion strength of at least 0.5 N / mm measured by the method according to SNE N 1348:2007 ２ is achieved, Using a leveling compound, at least 1.0 N / mm as measured by the method according to DIN EN 13892-8:2003 ２ of the adhesion strength, and / or a peeling force of at least 5.0 N / 25 mm measured by a method based on DIN EN 1939:2003 using a pressure-sensitive adhesive for construction applications, obtained on the adhesive-affinity surface, and a base film, - A method for manufacturing a one-sided self-adhesive film comprising a pressure-sensitive adhesive layer disposed on the side opposite to the adhesive-affinity surface and facing the surrounding environment of the base film, on the surface of the peelable backing layer on the side opposite to the adhesive-affinity surface of the base film, the pressure-sensitive adhesive layer having an adhesive force of 2.50 N / 50 mm or less measured according to Finat FTM10, the peelable backing layer having an adhesion-reducing layer on the side opposite to the adhesive-affinity surface and facing the surrounding environment is attached to the adhesive-affinity surface of the base film, the pressure-sensitive adhesive layer is attached on one side of the base film facing the surrounding environment and opposite to the adhesive-affinity surface, the peelable backing layer is attached to the adhesive-affinity surface of the base film, and the peelable backing layer is attached before, simultaneously with, or after the first pressure-sensitive adhesive layer, before the peelable backing layer is attached to the adhesive-affinity surface of the base film, an adhesive layer is attached to the peelable backing layer, and the peelable backing layer is attached to the base film such that the adhesive layer on the peelable backing layer contacts the adhesive-affinity surface of the base film. The adhesive layer on the adhesion-affinitive surface of the base film has an adhesive force of 0.05 to 2.50 N / 50 mm measured according to Fina tFTM10, the peelable backing layer is present on the adhesion-affinitive surface of the base film, the peelable backing layer has an adhesive layer on the side facing the adhesion-affinitive surface of the base film, and the adhesive force of the adhesive layer of the peelable backing layer on the adhesion-affinitive surface of the base film is at least twice the adhesive force of the pressure-sensitive adhesive layer of the self-adhesive film on the adhesion-reducing layer of the backing layer. A method for manufacturing a one-sided self-adhesive film.

7. The method according to claim 6, wherein the adhesion-affinitive surface of the base film is produced by physical and / or chemical pretreatment, coating, embossing of the base film, and / or joining of a fabric structure to the base film.

8. A method for attaching the one-sided self-adhesive film according to any one of claims 1 to 5 to a substrate, comprising: attaching the one-sided self-adhesive film to the substrate; rubbing and / or stretching the one-sided self-adhesive film on the substrate; removing the peelable backing layer of the one-sided self-adhesive film; optionally, applying an adhesive, abrasive grains, and / or a leveling compound to the adhesion-affinitive surface of the one-sided self-adhesive film.

9. The method according to claim 8, wherein a leveling compound and / or an adhesive is applied to the adhesion-affinitive surface of the one-sided self-adhesive film, and a floor covering material is adhered following the leveling compound and / or the adhesive.

10. Use of the one-sided self-adhesive film according to any one of claims 1 to 5 for applying an adhesive different from the pressure-sensitive adhesive of the pressure-sensitive adhesive layer and / or a leveling compound to a substrate.

Images