JP2018201751A - Concealing sheet - Google Patents

Abstract

To provide a concealing sheet that prevents the functions of concealing bruises and scratches from being deteriorated while it is stuck on the skin.SOLUTION: A concealing sheet 10 has a colorless first resin layer 2, an ink layer 3, a second resin layer 4, an adhesive layer 5, and a separator 6, laminated in the stated order. The first resin layer 2 and the second resin layer 3 are elastic.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a concealment sheet.

  Conventionally, in order to hide skin bruises and scratches, various concealment seals have been proposed for application on bruises and scratches (see, for example, Patent Document 1). The concealment seal described in Patent Document 1 is obtained by laminating a cover material, a base film, an adhesive layer, and a release liner in this order, and the base film and / or the adhesive layer is colored.

Japanese Patent Laid-Open No. 10-23923

  However, when the surface of the concealment seal (the surface opposite to the surface that adheres to the skin) is colored, the surface of the concealment seal is affected by an external impact or the like while the concealment seal is being applied to the skin. There is a problem that the concealing property such as bruises and scratches may be impaired by the damage.

  Therefore, the present invention pays attention to the above problems, and an object of the present invention is to provide a concealment sheet that can suppress the concealment property of bruises and scratches while being attached to the skin. And

  In the concealment sheet of the present invention, at least a colorless first resin layer, an ink layer, a second resin layer, an adhesive layer, and a separator are laminated in this order. The resin layer and the second resin layer have elasticity.

  In the concealment sheet of the present invention, it is preferable that a protective layer is further laminated on the side opposite to the ink layer across the first resin layer, and the protective layer includes polypropylene.

  In the concealment sheet of the present invention, the ink layer may include a first ink layer and a second ink layer.

  In the concealment sheet of the present invention, the second resin layer may have a mat shape.

  According to the masking sheet of the present invention, the colorless first resin layer, the ink layer, the second resin layer, the pressure-sensitive adhesive layer, and the separator are laminated in this order. As a result, the colorless first resin layer becomes the surface (the surface opposite to the surface that adheres to the skin) when pasted on the skin, and receives impact from the outside while it is pasted on the skin. Also, damage to the ink layer can be suppressed. Therefore, the color of the ink layer is hardly impaired, and it is possible to suppress the concealing property such as bruises and scratches from being impaired.

It is a top view which shows typically the concealment sheet concerning embodiment of this invention. It is a figure which shows typically the cross section of the concealment sheet concerning embodiment of this invention. It is a top view which shows typically the concealment sheet concerning the modification of this invention. It is a figure which shows typically the cross section of the concealment sheet concerning the modification of this invention.

  The concealment sheet of the present invention will be described. The concealment sheet of the present invention is used by sticking to a skin portion having bruises, scratches, etc. in order to hide bruises, scratches, etc. on the skin.

  The concealment sheet of the present invention comprises at least a colorless first resin layer, an ink layer, a second resin layer, an adhesive layer, and a separator, which are laminated in this order. One resin layer and the second resin layer have elasticity.

  In the concealment sheet of the present invention, a protective layer may be further laminated on the side opposite to the ink layer with the first resin layer interposed therebetween.

  In the present invention, “elasticity” refers to the property of deforming when an external force is applied and returning to its original shape when the applied external force disappears. In the concealment sheet of the present invention, when the first resin layer and the second resin layer have elasticity, it is possible to follow the movement of the skin when the concealment sheet is attached to the skin.

  Next, the concealment sheet 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIGS. 1 and 2, the masking sheet 10 includes a protective layer 1, a colorless first resin layer 2, an ink layer 3, a second resin layer 4, an adhesive layer 5, and a separator. 6 are stacked in this order. Moreover, the 1st resin layer 2 and the 2nd resin layer 4 have elasticity, respectively. When the concealment sheet 10 is attached to the skin and used, the separator 6 is peeled off and the adhesive layer 5 side is attached to the skin, and then only the protective layer 1 is removed. That is, when the concealment sheet 10 is used, a sheet body 20 composed of the first resin layer 2, the ink layer 3, the second resin layer 4, and the pressure-sensitive adhesive layer 5 is attached to the skin.

  Further, as shown in FIG. 1, the shape of the concealment sheet 10 of the present embodiment is a rectangular outer shape, and the sheet body 20 is formed in a shape in which rectangular corners are rounded. By forming the corners of the sheet body 20 to be round, it is possible to make the sheet body 20 difficult to peel off while the sheet body 20 is attached to the skin.

  As shown in FIG. 2, the protective layer 1 is laminated on the opposite side of the ink layer 3 with the first resin layer 2 interposed therebetween, and in the distribution stage before the concealment sheet 10 is used, the sheet body 20 Is provided to protect the surface of the first resin layer 2 so as not to be damaged. Further, as shown in FIG. 1, the protective layer 1 is configured to be larger than the sheet main body 20 so that the sheet main body 20 fits inside the protective layer 1 in a plan view.

  Moreover, the protective layer 1 can use resin materials, such as polyester, a polypropylene, polyethylene, for example, It is preferable that it is comprised especially including a polypropylene. Moreover, you may be comprised only from a polypropylene.

  In addition, in the conventional concealment sheet, a concealment sheet is applied by applying a release agent to a layer corresponding to the protective layer, or by laminating a layer using a release agent between the concealment sheet body attached to the skin. The peelability from the protective layer of the main body was sometimes increased. Since the protective layer 1 of the concealment sheet 10 of the present embodiment is configured to include polypropylene, the peelability of the sheet body 20 from the protective layer 1 can be increased without using a release agent or the like.

  Moreover, it is preferable that the protective layer 1 has transparency so that the sheet body 20 can be visually recognized. Thereby, when the sheet body 20 is pasted, the sheet body 20 can be easily adjusted to a desired position, and the pasting workability can be improved.

  Further, the thickness of the protective layer 1 can be about 50 μm to 200 μm, more preferably 100 μm to 180 μm, and still more preferably 100 μm to 150 μm. By adjusting the thickness of the protective layer 1 to an appropriate range, the familiarity with the skin can be improved and the attachment can be facilitated.

  As shown in FIG. 2, the first resin layer 2 is a layer having elasticity laminated between the protective layer 1 and the ink layer 3, and the surface layer when the sheet body 20 is attached to the skin ( It is a layer that is a layer on the opposite side to the surface that adheres to the skin. The first resin layer 2 is colorless and has transparency to the extent that the color of the ink layer 3 is visible.

  As the material of the first resin layer 2, for example, a resin material having elasticity such as a polyurethane resin, an acrylic resin, a urethane resin, or a silicone resin can be used. Moreover, you may add an antifoamer, a leveling agent, and other various additives for stabilization of quality. The thickness of the first resin layer 2 can be 1 μm to 25 μm, more preferably 3 μm to 20 μm, and even more preferably 5 μm to 10 μm. By adjusting the thickness of the first resin layer 2 to an appropriate range, familiarity with the skin is good and durability can be increased. Moreover, it can be easily peeled off from the skin after use by appropriately expanding and contracting.

  In the concealment sheet 10 of the present embodiment, the first resin layer 2 has a mat shape. When the first resin layer 2 has a mat shape, when the sheet body 20 is attached to the skin, light is reflected on the surface of the first resin layer 2 (so-called shine), and The appearance familiarity with the skin around the portion where the sheet body 20 is pasted can be improved.

  As shown in FIG. 2, the ink layer 3 is laminated between the first resin layer 2 and the second resin layer 4. As the material of the ink layer 3, for example, materials including various pigments such as titanium oxide and resins such as synthetic resins can be used, and the hue, brightness, and color around the skin portion to which the sheet body 20 is attached. It can be adjusted appropriately according to the degree. The thickness of the ink layer 3 can be about 1 μm to 15 μm, more preferably 3 μm to 10 μm, and still more preferably 4 μm to 8 μm. By setting the thickness of the ink layer 3 to an appropriate range, it is possible to maintain the ability to block bruises and scratches without inhibiting the familiarity with the skin.

  Further, as shown in FIG. 1, the ink layer 3 preferably has a gradation so that the outer color is lighter and the inner color is darker. Thereby, when the sheet | seat main body 20 is affixed on skin, the familiarity of appearance with the skin around the part which affixed the sheet | seat main body 20 can be made favorable. The gradation described above is, for example, arranged such that the dot-like ink is small on the outside and / or the interval between the dots is wide, and the dot-like ink is large on the inside and / or between the dots. It can form by arrange | positioning so that a space | interval may become narrow. Further, ink may be arranged on the entire ink layer 3, and the above-described gradation can be formed by, for example, changing the hue, lightness, or saturation of the outer and inner inks.

  As shown in FIG. 2, the second resin layer 4 is laminated between the ink layer 3 and the pressure-sensitive adhesive layer 5 and has elasticity. The second resin layer 4 may be colorless or colored. Moreover, as the material of the 2nd resin layer 4, the same material as the 1st resin layer 2 can be used, and when the 2nd resin layer 4 is colored, a pigment etc. can be further mixed. The thickness of the second resin layer 4 can be about 1 μm to 25 μm, more preferably 3 μm to 20 μm, and even more preferably 5 μm to 10 μm. By adjusting the thickness of the second resin layer 4 to an appropriate range, familiarity with the skin is good and durability can be enhanced. Moreover, it can be easily peeled off from the skin after use by appropriately expanding and contracting.

  As shown in FIG. 2, the pressure-sensitive adhesive layer 5 is laminated between the second resin layer 4 and the separator 6, and is a layer that bears adhesion to the skin when the sheet body 20 is attached to the skin. . The pressure-sensitive adhesive layer 5 may be colorless or colored. As the material of the pressure-sensitive adhesive layer 5, for example, various pressure-sensitive adhesives such as an acrylic pressure-sensitive adhesive, a rubber pressure-sensitive adhesive, and a silicone-based material can be used. When the pressure-sensitive adhesive layer 5 is colored, a pigment or the like is further mixed. be able to. As this pigment, for example, the same pigment as that used for the ink layer 3 can be used. Further, the thickness of the pressure-sensitive adhesive layer 5 can be about 0.5 μm to 15 μm, more preferably 1 μm to 10 μm, and further preferably 2.5 μm to 6.5 μm. By making the thickness of the pressure-sensitive adhesive layer 5 in an appropriate range, it is easy to apply when sticking to the skin while minimizing irritation to the skin, and durable enough to be easily peeled off when peeling. Can be secured.

  As shown in FIG. 2, the separator 6 is laminated on the side opposite to the second resin layer 4 with the pressure-sensitive adhesive layer 5 interposed therebetween, and before using the concealment sheet 10, the pressure-sensitive adhesive layer 5 is desired. It prevents sticking to places other than places. The separator 6 is formed in the same size and shape as the protective layer 1 in plan view. As the separator 6, what is generally used as a separator (release paper, release film) can be applied, and a sheet of paper or resin material coated with a release agent such as silicone can be used.

  Moreover, the thickness of the separator 6 can be about 30 μm to 150 μm, more preferably 50 μm to 120 μm, and still more preferably 70 μm to 100 μm.

  Further, by sandwiching the ink layer 3 between the first resin layer 2 and the second resin layer 4, the sheet body 20 can be given a certain thickness, and the sheet body 20 is protected from the protective layer 1 than when the thickness is small. Can be easily peeled off. Further, the durability of the seat body 20 can be increased.

  Moreover, the concealment sheet 10 can be manufactured by printing the material of each other layer on a base material by methods, such as screen printing and offset printing, using the protective layer 1 or the separator 6 as a base material, for example. When the concealment sheet 10 is manufactured by printing, it is preferable to select a material that can be used for printing as the material of each layer. In order to improve printability, for example, a resin material, a pigment, or the like as a main component has a solvent. The contained material may be used. When using the material containing a solvent, content of a solvent can be made into about 10 mass%-25 mass% by an internal division, for example.

  In addition, as a material for each layer of the sheet main body 20, additives other than the above-described materials may be appropriately added and used in order to enhance the stretchability of the sheet main body and the peelability from the protective layer 1.

  Next, an example of the manufacturing method of the concealment sheet 10 will be described. The manufacturing method of the concealment sheet 10 of this embodiment is not limited to the following, It can carry out by changing a material and a process suitably.

  First, the protective layer 1 made of polypropylene is used as a base material, and the materials of the first resin layer 2, the ink layer 3, the second resin layer 4, and the pressure-sensitive adhesive layer 5 are screen-printed and laminated, and then the separator 6 is Further, the concealment sheet 10 is formed by laminating.

  In the present embodiment, the protective layer 1 is subjected to mat processing, and irregularities are formed on the surface of the protective layer 1. Next, the first resin layer 2 is printed and laminated using a mixture containing a solvent and a polyurethane-based resin as a material. Next, the ink layer 3 is printed and laminated on the first resin layer 2 using a mixture containing a pigment, a synthetic resin, and a solvent as a material, and dried. The ink layer 3 is printed in the form of dots, arranged so that the dots are smaller and the intervals between the dots are wider toward the outer side, the dots are larger toward the inner side, and the intervals between the dots are narrower. Be placed. After the ink layer 3 is dried, the second resin layer 4 is further printed and laminated on the ink layer 3 using the same material as the mixture used for the first resin layer 2 and dried. Next, the adhesive layer 5 is printed and laminated on the second resin layer 4 using a mixture containing an acrylic adhesive and a solvent as a material, and dried. Finally, a sheet-like separator 6 coated with silicone as a release agent is laminated on the pressure-sensitive adhesive layer 5 to obtain a concealment sheet 10.

  As described above, the first resin layer 2 of the present embodiment is formed in a mat shape. In the present embodiment, the first resin layer 2 is formed into a mat shape by forming the first resin layer 2 having unevenness using the protective layer 1 having unevenness as a mold. To do. Further, in order to form the unevenness by subjecting the protective layer 1 to mat processing, a method of applying a resin containing a particulate material to the protective layer 1, a method using a sand blast, an embossing roll, or the like may be performed. it can. Moreover, after printing the 1st resin layer using a smooth protective layer other than the method of using the protective layer 1 which has an unevenness | corrugation like this embodiment, it uses an embossing roll etc. to a 1st resin layer. Unevenness may be formed.

  Further, as a method of forming the first resin layer 2 in a mat shape, in addition to the method of forming irregularities, the first resin layer 2 becomes a main component of the first resin layer 2 so that light is irregularly reflected in the first resin layer 2. You may form the 1st resin layer 2 by mixing substances other than resin.

  According to the concealment sheet 10 of the present embodiment, the colorless first resin layer 2, the ink layer 3, the second resin layer 4, the pressure-sensitive adhesive layer 5, and the separator 6 are laminated in this order. ing. Thereby, when the sheet body 20 is affixed to the skin, the first resin layer 2 becomes a surface (a surface opposite to the surface bonded to the skin), and the sheet body 20 is affixed to the skin. Even if an impact is applied from the outside, damage to the ink layer 3 can be suppressed. Therefore, the color of the ink layer 3 is not easily impaired, and it is possible to suppress the concealing property such as bruises and scratches from being impaired. Further, while the sheet main body 20 is applied to the skin, the hue, brightness, or saturation changes, and the familiarity with the skin around the part where the sheet main body 20 is applied is impaired. Can be suppressed.

  Note that the present invention is not limited to the above-described embodiments, and includes other configurations and the like that can achieve the object of the present invention, and includes the following modifications and the like.

  In the embodiment described above, the ink layer is composed of the single ink layer 3, but the number of ink layers may be plural. Hereinafter, an example of the concealment sheet 10A in which the ink layer is composed of two ink layers will be described with reference to FIGS. In addition, about the structure similar to embodiment mentioned above, the same code | symbol is used and description is abbreviate | omitted.

  As shown in FIGS. 3 and 4, the concealment sheet 10A includes a protective layer 1, a colorless first resin layer 2, an ink layer 3A, a second resin layer 4, an adhesive layer 5, and a separator. 6 are laminated in this order, and the sheet main body 20A is composed of a colorless first resin layer 2, an ink layer 3A, a second resin layer 4, and an adhesive layer 5. Has been.

  The ink layer 3 </ b> A includes a first ink layer 31 and a second ink layer 32. The first ink layer 31 has the same configuration as the ink layer 3 of the above-described embodiment. Further, the second ink layer 32 is formed smaller than the first ink layer 31 in a plan view, and is disposed inside the first ink layer 31.

  The second ink layer 32 is configured to be visually recognized as a darker color than the first ink layer 31. That is, when the first ink layer 31 is configured using dot-like ink, the dot-like ink of the first ink layer 31 is the largest and / or the interval between the dots is the smallest. The dot-like ink is larger than the portion arranged at the position and / or the interval between the dots is further narrowed, or the ink is arranged on one surface of the second ink layer 32. . In addition, when ink is arranged on the entire surface of the first ink layer 31, the hue, lightness, or saturation of the second ink layer 32 is changed to the ink used for the first ink layer 31, thereby You may comprise so that it may be visually recognized darker than the one ink layer 31. FIG.

  According to the concealment sheet 10A, it is possible to design the concealment sheet 10A so that the concealability is higher than when the ink layer is a single layer. It can make bruises and scratches made less noticeable.

  In the above-described embodiment, the protective layer 1 is provided. However, the protective sheet may not be provided with the protective layer. When producing a concealment sheet having no protective layer, the adhesive sheet, the second resin layer, the ink layer, and the first resin layer may be laminated in this order using the release sheet as a base material.

  In the above-described embodiment, the first resin layer 2 is formed in a mat shape, but the first resin layer in the concealment sheet of the present invention may not be in a mat shape.

  In the above-described embodiment, the concealment sheet is configured so that the first resin layer 2 and the second resin layer 4 have elasticity. However, the other layers of the sheet body 20 also have elasticity. You may comprise.

  In the embodiment described above, the outer shape of the concealment sheet 10 is rectangular, and the sheet body 20 is formed in a shape in which rectangular corners are rounded. However, the shape is not limited thereto. Assuming the size and shape of concealed scratches and bruises, for example, a circle or ellipse other than a rectangle can be set as appropriate.

  In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the present invention has been described mainly with respect to specific embodiments, but without departing from the scope of the technical idea and object of the present invention, the shape, material, quantity, In other detailed configurations, various modifications can be made by those skilled in the art.

  Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples.

[Production of concealment sheet]
Example 1
The concealment sheet was manufactured using the material containing the following components. The size of the concealment sheet was 115 mm × 95 mm for the protective layer and the separator, and 105 mm × 85 mm for the sheet body (first resin layer, ink layer, second resin layer, adhesive layer). The thickness was as follows.

Protective layer Polypropylene, thickness 100μm
First resin layer Polyurethane resin, ethylbenzene, xylene, cyclohexanone, methyl ethyl ketone, ester solvent, thickness 10μm
Ink layer Pigment, synthetic resin, cyclohexanone, propylene glycol monomethyl ether, aromatic mixed hydrocarbon, trimethylbenzene, xylene, thickness 8μm
Second resin layer Polyurethane resin, ethylbenzene, xylene, cyclohexanone, methyl ethyl ketone, ester solvent, thickness 10μm
Adhesive layer Acrylate ester copolymer, ethyl acetate, thickness 10μm
Separator Cellulose, polyvinyl alcohol, starch, aluminum sulfate, sizing agent, silicone, thickness 100 μm

  The concealment sheet was manufactured by using the protective layer as a base material and laminating by screen printing in the order of the first resin layer, the ink layer, the second resin layer, the pressure-sensitive adhesive layer, and the separator. In addition, when laminating | stacking each layer, after making it fully dry and volatilizing a solvent, the next layer was printed. This obtained the concealment sheet.

(Comparative Example 1)
As Comparative Example 1, a concealment sheet was produced in the same manner as in Example 1 except that the first resin layer was not provided.

[Evaluation and results]
The concealment sheets of Example 1 and Comparative Example 1 were affixed to the skin for 7 days, and the degree of damage of the concealment sheet and the concealability were evaluated after 7 days from the pasting. Evaluation was performed by sensory evaluation with a monitor. The evaluation criteria were the following three levels for the degree of damage of the concealment sheet and the concealability. The evaluation results are shown in Table 1.
<Degree of damage to concealment sheet>
“◯”: The sheet surface is hardly damaged as compared with the case of pasting.
“Δ”: The surface of the sheet is slightly damaged as compared with the case of pasting.
“X”: The sheet surface is considerably damaged as compared with the case of pasting.
<Concealment>
“◯”: Concealment property is hardly changed as compared with the case of pasting.
“Δ”: Concealment is slightly reduced as compared with the case of pasting.
“X”: Concealment performance is considerably lowered as compared with the case of pasting.

[Discussion]
From the above evaluation results, in Example 1 which is an exemplary embodiment of the concealment sheet of the present invention, the first resin layer becomes the surface (the surface opposite to the surface bonded to the skin) and is attached to the skin. It was shown that damage to the ink layer can be suppressed even when subjected to an impact or the like from the outside during the operation. Further, it has been shown that the color of the ink layer is hardly impaired by this, and the concealing property such as bruises and scratches can be suppressed.

10, 10A Concealment sheet 20, 20A Sheet body 1 Protective layer 2 First resin layer 3, 3A Ink layer 31 First ink layer 32 Second ink layer 4 Second resin layer 5 Adhesive layer 6 Separator

Claims (4)

At least a colorless first resin layer, an ink layer, a second resin layer, an adhesive layer, and a separator are laminated in this order,
The concealment sheet, wherein the first resin layer and the second resin layer have elasticity. A protective layer is further laminated on the side opposite to the ink layer across the first resin layer,
The concealment sheet according to claim 1, wherein the protective layer includes polypropylene.   The concealment sheet according to claim 1, wherein the ink layer includes a first ink layer and a second ink layer.   The concealment sheet according to any one of claims 1 to 3, wherein the first resin layer has a mat shape.

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