Marking film and method for producing marking film

Abstract

To provide a marking film capable of omitting an operation of peeling a release liner in a construction contractor.SOLUTION: A marking film 5 is a laminated marking film in which a laminate material 1, in which a first substrate 10 and a first adhesive layer 20 are laminated in this order, is laminated onto a media material 2, in which a printing layer 40, a second substrate 50, and a second adhesive layer 60 are laminated in this order, so that the first adhesive layer adheres to the printing layer, and a release agent layer 11 that has been subjected to a release treatment is provided on the surface of the first substrate opposite to the side where the first adhesive layer is provided.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a marking film and a method for manufacturing the marking film. [Background technology]

[0002] Conventionally, printed adhesive sheets have been widely used for the purpose of decorative display indoors and outdoors. One such adhesive sheet is a marking film in which an overlamination adhesive sheet is laminated on the printed surface to protect the printed surface (see, for example, Patent Document 1).

[0003] As described above, the marking film formed by laminating the overlaminating adhesive sheet is processed by the printing and processing company into a composition of "laminating material / printing layer / media material / release liner." After processing, it is delivered to the installation company in roll form. The installation company peels off the release liner and installs the marking film, after which the peeled release liner is collected and disposed of as industrial waste. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-037977 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the amount of release liner that needs to be discarded increases in proportion to the amount of marking film applied, and there is a problem in that the cost of recovering and disposing of the release liner is a significant burden on the application company.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide a marking film and a method for manufacturing the marking film that allows the installer to eliminate the task of peeling off the release liner. [Means for solving the problem]

[0007] The above object of the present invention can be achieved by the following means.

[0008] (1) A laminate material in which a first substrate and a first pressure-sensitive adhesive layer are laminated in this order, A marking film laminated to a media material having a printing layer, a second substrate, and a second adhesive layer laminated in this order, such that the first adhesive layer adheres to the printing layer, A marking film comprising a release agent layer that has been subjected to a release treatment on the surface of the first substrate opposite to the side on which the first adhesive layer is provided.

[0009] (2) The marking film according to (1) above, wound into a roll.

[0010] (3) a first preparation step of preparing a laminate material in which a first substrate, a first pressure-sensitive adhesive layer, and a first release liner are laminated in this order; a second preparation step of preparing a media material having a second substrate, a second pressure-sensitive adhesive layer, and a second release liner laminated in this order; a printing step of forming a print layer on the surface of the second base material of the media material prepared in the second preparation step; a laminating step of peeling the first release liner of the laminate material from the first adhesive layer and laminating the laminate material to the media material so that the first adhesive layer adheres to the print layer; a peeling step of peeling the second release liner from the second pressure-sensitive adhesive layer; a winding step of winding the laminated laminate material and the media material, A method for manufacturing a marking film, comprising, before the winding step, a treatment step of performing a release treatment on the surface of the first substrate opposite to the surface on which the first adhesive layer is formed.

[0011] (4) The method for manufacturing a marking film according to (3), wherein the treatment step is carried out before the lamination step. [Effects of the Invention]

[0012] According to the marking film and the marking film manufactured by the above-mentioned manufacturing method for the marking film, the surface of the first substrate opposite to the side on which the first adhesive layer is provided is release-treated, so that the second release liner of the media material is not required in the rolled state. Therefore, after the second release liner of the media material is peeled off and the roll is formed, it can be delivered to the installer, eliminating the need for the installer to peel off the release liner. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a cross-sectional view showing a laminate material of a marking film according to an embodiment of the present invention, taken along line 1-1 in FIG. 3.

[0023] FIG. [Figure 2] 2 is a cross-sectional view showing the media material of the marking film according to the present embodiment, taken along line 2-2 in FIG. 3. FIG. [Figure 3] 1A to 1C are schematic diagrams for explaining a manufacturing method of a marking film according to an embodiment of the present invention. [Figure 4] 3 is a flowchart showing a method for manufacturing a marking film according to the present embodiment. [Figure 5] FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 3. [Figure 7] 1 is a cross-sectional view showing a portion of the marking film according to the present embodiment wound into a roll. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicate explanations will be omitted. Furthermore, the dimensional proportions in the drawings are exaggerated for the convenience of explanation and may differ from the actual proportions.

[0015] First, the configurations of the laminate material 1 and the medium material 2 of the marking film 5 according to this embodiment will be described with reference to Figures 1 and 2. Figure 1 is a cross-sectional view showing the laminate material 1 of the marking film 5 according to this embodiment, taken along line 1-1 in Figure 3. Figure 2 is a cross-sectional view showing the medium material 2 of the marking film 5 according to this embodiment, taken along line 2-2 in Figure 3.

[0016] As shown in Figure 1, the laminating material 1 has, from top to bottom, a first substrate 10, a first adhesive layer 20, and a first release liner 30. As shown in Figure 2, the media material 2 has, from top to bottom, a printed layer 40, a second substrate 50, a second adhesive layer 60, and a second release liner 70. The laminating material 1 is overlaminated onto the printed layer 40 with the first release liner 30 peeled off. In this way, the laminating material 1 protects the adhesion surface of the printed layer 40 of the media material 2.

[0017] <Laminate material 1> First, the structure of the laminate material 1 will be described with reference to FIG.

[0018] The first substrate 10 is preferably a transparent substrate because the pattern of the underlying media material 2 must be visible from the outside. Here, "transparent" means that the transmittance in the visible light range is 80% or more, preferably 90% or more (upper limit 100%). The transmittance of the resin substrate can be measured according to JIS K7361-1:1997 (Test method for total light transmittance of plastic transparent materials).

[0019] The material constituting the first substrate 10 is not particularly limited, and examples thereof include polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate; polyolefin films such as polyethylene and polypropylene; cellophane, diacetyl cellulose film, triacetyl cellulose film, acetyl cellulose butyrate film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, polystyrene film, polycarbonate film, polymethylpentene film, polysulfone film, fluororesin film, acrylic resin film, norbornene-based resin film, and cyclic olefin-based film. Among these, the resin substrate is preferably a polyester film or an acrylic resin film in terms of transparency, a polyvinyl chloride film in terms of three-dimensional curved surface conformability, and a fluororesin film in terms of weather resistance.

[0020] The first substrate 10 may contain stabilizers, lubricants, softeners, ultraviolet absorbers, antioxidants, antistatic agents, flame retardants, and the like as needed.

[0021] There are no particular restrictions on the thickness of the first base material 10, but it is preferably 5 to 250 μm.

[0022] A release agent layer 11 that has been subjected to a release treatment is provided on the surface of the first substrate 10 opposite (upper side in FIG. 1) to the side on which the first adhesive layer 20 is provided (lower side in FIG. 1).

[0023] Examples of release agents used in the release agent layer 11 include rubber elastomers such as silicone, olefin resins, isoprene resins, and butadiene resins, long-chain alkyl resins, long-chain alkyl acrylate resins, alkyd resins, and fluorine-containing resins. Of these, silicone is preferred. The thickness of the release agent layer 11 is usually about 0.01 to 5 μm.

[0024] The adhesive used in the first adhesive layer 20 is not particularly limited, and may be an acrylic adhesive, a synthetic rubber adhesive, a silicone adhesive, a urethane adhesive, etc. The above adhesives may be used alone or in combination of two or more.

[0025] From the viewpoint of adhesive reliability, an acrylic adhesive is particularly suitable for use as the adhesive. The acrylic polymer constituting the acrylic adhesive is formed by using a (meth)acrylic acid alkyl ester as the main monomer component and, as necessary, a monomer copolymerizable with the (meth)acrylic acid alkyl ester (copolymerizable monomer).

[0026] Examples of (meth)acrylic acid alkyl esters include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, isopropyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, pentyl (meth)acrylate, hexyl (meth)acrylate, cyclohexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, isooctyl (meth)acrylate, normal octyl (meth)acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, myristyl (meth)acrylate, palmityl (meth)acrylate, and stearyl (meth)acrylate. These may be used alone or in combination of two or more.

[0027] It is preferable to use a monomer having a crosslinkable functional group as a monomer copolymerizable with the (meth)acrylic acid alkyl ester (copolymerizable monomer). Specific examples include hydroxyl group-containing monomers such as hydroxyalkyl (meth)acrylates, such as 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, and 4-hydroxybutyl (meth)acrylate; carboxyl group-containing monomers such as (meth)acrylic acid, itaconic acid, maleic acid, and fumaric acid; and amino group-containing monomers such as aminoethyl (meth)acrylate and (meth)acryloylmorpholine.

[0028] Other copolymerizable monomers include vinyl acetate and styrene.

[0029] The weight-average molecular weight of the acrylic polymer is not particularly limited, but is preferably 100,000 to 1,000,000. The weight-average molecular weight is a value measured by gel permeation chromatography (GPC) in terms of polystyrene.

[0030] The pressure-sensitive adhesive preferably contains a crosslinking agent in addition to the acrylic polymer. Examples of the crosslinking agent include an isocyanate crosslinking agent, an epoxy crosslinking agent, and a metal chelate crosslinking agent. The amount of the crosslinking agent added is preferably 0.001 to 10 parts by mass, and more preferably 0.01 to 3.0 parts by mass, per 100 parts by mass of the acrylic polymer.

[0031] If necessary, the first pressure-sensitive adhesive layer 20 may contain appropriate additives such as a tackifier, an ultraviolet absorber, an antioxidant, an antistatic agent, an emulsifier, a leveling agent, an antifoaming agent, and an antiseptic.

[0032] The thickness of the first adhesive layer 20 is not particularly limited, but is preferably in the range of 10 to 50 μm from the viewpoint of adhesiveness and thinning.

[0033] The first release liner 30 is not particularly limited, but examples thereof include plastic films such as polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate, and polyolefin films such as polypropylene and polyethylene; and papers such as fine paper, glassine paper, kraft paper, and clay-coated paper.

[0034] The thickness of first release liner 30 is typically about 10 to 400 μm. A layer of a release agent made of silicone or the like may be provided on the surface of first release liner 30 to improve releasability from first pressure-sensitive adhesive layer 20. When such a layer is provided, the thickness of that layer is typically about 0.01 to 5 μm.

[0035] <Media Material 2> Next, the configuration of the media material 2 will be described with reference to FIG.

[0036] 2 is printed to form a printed layer 40 on the upper surface of the second substrate 50, allowing various designs, text information, and the like to be displayed. For this reason, the second substrate 50 is preferably white, for example. There are no particular restrictions on the specific means for making the second substrate 50 white, but one example is a method of adding a white pigment such as titanium oxide to the material of the first substrate 10 described above.

[0037] The second adhesive layer 60 can be made of the same material as the first adhesive layer 20 described above and can have the same thickness.

[0038] The second release liner 70 can be made of the same material and have the same thickness as the first release liner 30 described above.

[0039] The print layer 40 is a layer on which letters, figures, numbers, etc. are printed, such as a layer on which signs, advertisements, marks, vehicle decorations, floor decorations, wall decorations, glass decorations, etc. are printed.

[0040] There are no particular limitations on the method for forming the printed layer 40, and images can be drawn using various printers such as inkjet printers, thermal transfer printers, electrophotographic printers, etc. Among these, the printed layer is preferably formed by the thermal transfer printer or inkjet printer, with the inkjet printer being more preferred, as this makes it easier to print variable information.

[0041] Next, a method for manufacturing the marking film 5 will be described with reference to Figs. 3 to 7. Fig. 3 is a schematic diagram for explaining the method for manufacturing the marking film 5 according to this embodiment. Fig. 4 is a flowchart showing the method for manufacturing the marking film 5 according to this embodiment. Fig. 5 is a cross-sectional view taken along line 5-5 in Fig. 3. Fig. 6 is a cross-sectional view taken along line 6-6 in Fig. 3. Fig. 7 is a cross-sectional view showing the marking film 5 according to this embodiment wound into a roll.

[0042] As shown in FIG. 4, the manufacturing method of the marking film 5 includes a first preparation step S01, a second preparation step S02, a processing step S03, a printing step S04, a first peeling step S05, a laminating step S06, a second peeling step (corresponding to the peeling step) S07, and a winding step S08.

[0043] In the first preparation step S01, a laminate material 1 is prepared, which is made by laminating in this order a first substrate 10, a first adhesive layer 20, and a first release liner 30. The laminate material 1 is manufactured by a known manufacturing method.

[0044] In the second preparation step S02, the second substrate 50, the second adhesive layer 60, and the second release liner 70 are laminated in this order to prepare the media material 2 before the printing layer 40 is formed. The media material 2 is manufactured by a known manufacturing method.

[0045] In the treatment step S03, a release treatment is performed on the surface of the first substrate 10 opposite to the surface on which the first pressure-sensitive adhesive layer 20 is formed, to form a release agent layer 11. In this embodiment, the treatment step S03 is performed before the lamination step S06.

[0046] For example, if the processing step S03 is performed after the laminating step S06 and before the winding step S08, the first substrate 10 and the second substrate 50 may be heated during the processing step S03 due to the different thermal shrinkage rates of the materials used. This may result in curling. In contrast, in this embodiment, the processing step S03 is performed before the laminating step S06, so heat is applied only to the first substrate 10. This prevents the curling described above. Note that the present invention also includes a case where the processing step S03 is performed after the laminating step S06 and before the winding step S08.

[0047] Next, the laminate material 1 having the release agent layer 11 formed thereon and wound in a roll is placed in the position shown in FIG. 3, and the media material 2 also wound in a roll is placed in the position shown in FIG.

[0048] Then, while the media material 2 wound into a roll is transported to the right in Figure 3, in the printing process S04, a printing machine 90 performs a predetermined printing on the side of the second substrate 50 opposite to the side on which the second adhesive layer 60 is provided, thereby forming a printed layer 40.

[0049] Then, while the rolled laminate material 1 is being conveyed in the lower right direction in FIG. 3, the first release liner 30 is peeled off from the first pressure-sensitive adhesive layer 20 in the first peeling step S05.

[0050] Next, in the laminating step S06, the laminating material 1 is laminated onto the medium material 2 so that the first adhesive layer 20 adheres to the printing layer 40.

[0051] Next, in the second peeling step S07, the second release liner 70 of the media material 2 is peeled off from the second pressure-sensitive adhesive layer 60.

[0052] Next, in the winding step S08, the laminated laminating material 1 and the media material 2 are wound.

[0053] The marking film 5 manufactured by the above manufacturing method is transferred to an installer. For example, in the case of a laminate material that does not have a release agent layer 11, if the second release liner 70 of the media material 2 is peeled off during rolling, the second adhesive layer 60 will unintentionally adhere to the first substrate 20, making it difficult for the installer to return the rolled state to its original state during installation. Therefore, in this case, the media material must be rolled without peeling off the second release liner.

[0054] However, in this case, the installer must peel off the release liner from the marking film, apply the marking film, and then collect the peeled release liner and dispose of it as industrial waste, which is a significant burden for the installer.

[0055] In contrast, with the marking film 5 manufactured by the manufacturing method for the marking film 5 according to this embodiment, even if the second release liner 70 is peeled off before the winding step S08, the release agent layer 11 is formed on the surface of the first substrate 10, so that the film can be easily restored from the rolled state when the installer installs it. Furthermore, because the release agent layer 11 is formed, the second release liner 70 of the media material 2 can be peeled off and rolled up before delivery to the installer, eliminating the need for the installer to peel off the second release liner 70.

[0056] The marking film and the method for manufacturing the marking film according to the present invention have been described above through the embodiments, but the present invention is not limited to the above-described embodiments and can be modified in various ways within the scope of the claims. [Explanation of symbols]

[0057] 1 laminate material, 2 media materials, 5 marking film, 10 first substrate, 11 release agent layer, 20 first adhesive layer, 30 first release liner, 40 printing layers, 50 second substrate, 60 second adhesive layer, 70 second release liner, S01 1st preparation process, S02 2nd preparation process, S03 treatment process, S04 Printing process, S05: First peeling step; S06 Lamination process, S07 Second peeling step, S08 Winding process.

Claims

1. a laminate material in which a first substrate and a first pressure-sensitive adhesive layer are laminated in this order, A marking film laminated to a media material having a printing layer, a second substrate, and a second adhesive layer laminated in this order, such that the first adhesive layer adheres to the printing layer, A marking film comprising a release agent layer that has been subjected to a release treatment on the surface of the first substrate opposite to the side on which the first adhesive layer is provided.

2. 10. The marking film according to claim 1, wound into a roll.

3. a first preparation step of preparing a laminate material in which a first substrate, a first pressure-sensitive adhesive layer, and a first release liner are laminated in this order; a second preparation step of preparing a media material having a second substrate, a second pressure-sensitive adhesive layer, and a second release liner laminated in this order; a printing step of forming a print layer on the surface of the second base material of the media material prepared in the second preparation step; a laminating step of peeling the first release liner of the laminate material from the first adhesive layer and laminating the laminate material to the media material so that the first adhesive layer is adhered to the print layer; a peeling step of peeling the second release liner from the second pressure-sensitive adhesive layer; a winding step of winding the laminated laminate material and the media material, A method for manufacturing a marking film, comprising a treatment step of performing a release treatment on the surface of the first substrate opposite to the surface on which the first adhesive layer is formed, before the winding step.

4. The method for manufacturing a marking film according to claim 3 , wherein the treatment step is carried out before the lamination step.

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