JP2013043403A - Transfer foil, and transferred matter using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer foil for foil stamping which has a metal vapor deposition layer while having a wider-ranging designability that is different from the metallic luster obtained by an opacifying effect of under-printed matter with the conventional metal vapor deposition layer.SOLUTION: The transfer foil is formed by laminating a release layer, a metal vapor deposition layer and an adhesive layer sequentially at least on one side of base material, and has the characteristic that the film thickness of the metal vapor deposition layer does not exceed 300 Å. After the transferring to the under-printed matter (matter to be transferred) to which underprint has been applied beforehand, the under-printed matter can be seen through due to permeability, and also the metallic luster of the metal vapor deposition layer can be obtained, and then the transfer foil gets a new designability with a synergistic effect.

Description

  The present invention relates to a transfer foil provided with a release layer, a vapor deposition layer, and an adhesive layer, and in particular, a transfer foil used for so-called foil pressing for thermally transferring a pattern or characters having a metallic feeling to a printed material, and the like. Related to transferred object.

  Foil stamping is widely used in various printed materials, books, packages, and the like. Foil stamping using a transfer foil having a glossy metal vapor-deposited layer can express expressions that cannot be imitated by ordinary printing, and is mainly useful for imparting a high-class feeling to various printed materials.

  Conventionally, a transfer foil having a glossy metal layer has been used to give a high-class feeling by foil pressing. Therefore, if the film thickness of the metal layer is non-uniform, especially when the film thickness is thin, the concealability of the metal layer after foil pressing becomes insufficient, resulting in deterioration of quality such as uneven metal gloss, and depending on the degree, as a product There is a problem that the value of is completely lost.

  As a method of providing the metal layer, a vacuum deposition method in which a target metal is deposited under reduced pressure is known. In order to provide a metal vapor deposition layer by these methods and impart a metallic luster to the underlying printed matter, sufficient concealability by the metal vapor deposition layer, that is, a sufficient film thickness of the metal vapor deposition layer is required.

  However, on the other hand, by providing a non-uniform metal vapor deposition layer on the above-mentioned base printed matter, it is possible to obtain a design that is different from the high-quality effect by the conventional metallic luster, and to expand the possibility of decorative expression by transfer foil. I can do it.

  For example, the inventor of the present invention has made the conventional non-conventional fading by making use of the non-uniformity of the peeled surface at the time of transfer by making some layers non-uniform among the layer structure of the transfer foil used for foil pressing. A transfer foil capable of expressing such a texture and texture is provided (Patent Document 1).

  In this way, in the formation of the layer structure of the transfer foil used for foil stamping, by controlling the film thickness of a specific layer, after the foil stamping (transfer), a new expression is created by the interaction with the preliminarily printed substrate. The present invention provides a transfer foil that can impart an unprecedented design effect.

Japanese Patent Application No. 2011-046649

  The present invention is a foil-depressing transfer foil having a metal vapor-deposited layer, which is different from the metallic luster obtained by the concealment effect of the underlying printed matter by the conventional metal vapor-deposited layer and has a wider range of design properties. Is to provide.

  The invention according to claim 1 of the present invention is a transfer foil in which a release layer, a metal vapor deposition layer, and an adhesive layer are sequentially laminated on at least one surface of a base material, and the film thickness of the metal vapor deposition layer does not exceed 300 mm. It is the transfer foil characterized by this.

  The invention according to claim 2 of the present invention is a transfer object obtained by transferring the transfer foil described in claim 1.

  That is, according to the present invention, when the thickness of the metal vapor deposition layer is within a range not exceeding 300 mm, the metal vapor deposition layer has transparency and is applied to a ground printed material (transferred material) on which ground printing has been performed in advance. After the transfer, the base printed matter can be seen through due to its transparency, and the metallic gloss of the metal vapor deposition layer can be obtained, thereby providing a new design property due to a synergistic effect.

  The transfer foil for pressing a foil according to the present invention can provide a transfer foil for pressing a foil having a wider range of design properties due to the synergistic effect of the metallic gloss by the metal vapor deposition layer and the transparency of the underlying printed matter due to the transparency.

It is a cross-sectional schematic diagram of one Example of the transfer foil of this invention. It is a cross-sectional schematic diagram of one Example of the to-be-transferred object using the transfer foil of this invention. It is a transfer top view of Example 1 by the transfer foil of this invention. It is a transfer top view of the comparative example 1 by the conventional transfer foil.

  FIG. 1 is a cross-sectional view schematically showing an example of the transfer foil of the present invention. The transfer foil of the present invention is a laminate in which a release layer 2, a vapor deposition layer 3 and an adhesive layer 4 are sequentially laminated on at least one surface of a substrate 1, and at the time of transfer, the substrate 1 and the transfer layer 5 (release layer 2, The layer in which the vapor deposition layer 3 and the adhesive layer 4 are sequentially laminated) peels from the peeling layer 2.

  As the base material 1, a sheet-like or film-like flexibility is preferable, and in terms of surface smoothness, dimensional stability, heat resistance, workability, economy, toughness, etc., it is made of PET. Films are most preferred. As thickness of a base material, 12-20 micrometers is preferable. When the thickness is less than 12 μm, there is a problem that the strength is insufficient, and when it exceeds 20 μm, there is a problem of deterioration in thermal conductivity and a problem in cost.

  The release layer 2 is intended to provide smooth release between the substrate 1 and the transfer layer 5 during transfer and to protect the adjacent metal vapor deposition layer after transfer. In order to satisfy the above two functions, the material for forming the release layer 2 is preferably an acrylic resin, for example, and the formation method is preferably a coating method such as gravure coating or roll coating. Therefore, the material for forming the release layer is also preferably a material that dissolves in a solvent and has solubility depending on the coating method. As for the thickness of a peeling layer, 0.5-2 micrometers is preferable. If this thickness is less than 0.5 μm, there is a problem that the effect of protecting the deposited layer after transfer is reduced, and if it exceeds 2 μm, there are problems in terms of foil breakage during transfer and cost.

  The metal deposition layer 3 can be formed by depositing a metal on the release layer. For example, examples of the metal that can be deposited include aluminum, nickel, chromium, silver, and gold. Aluminum is preferable from the viewpoint of ease of handling and cost. It is preferable that the thickness of the metal deposition layer does not exceed 300 mm. If it exceeds 300 mm, the desired transparency cannot be obtained, and the spread of designability due to the synergistic effect of the perspective of the preprinted underprint and the metallic luster cannot be obtained.

The adhesive layer 4 is a layer for adhering the transfer layer 5 and the transfer target 6. As a material for such an adhesive layer, a vinyl chloride-vinyl acetate copolymer / polyester resin or the like can be preferably used. The adhesive layer is preferably provided by application, and the material for forming the adhesive layer is preferably a material that can be applied by dissolving in a solvent. The thickness of the adhesive layer is preferably 1.5 to 3 μm. When the thickness is less than 1.5 μm, sufficient adhesive strength cannot be obtained.

  The transfer body 5 to which the transfer layer 5 is transferred may be a flat surface or a solid body such as a molded body as long as an adhesive layer can be attached and can withstand the heat during transfer. Examples of such a material to be transferred include porcelain, ceramics, glass, plastic, leather, and film, and paper is particularly preferable.

Next, an example of a method for producing the transfer foil of the present invention will be described.
First, for example, a PET film having a thickness of 12 μm is selected as the substrate 1. On one surface of the PET film, for example, an acrylic resin is applied by a gravure coating method and dried to provide the release layer 2. Next, for example, aluminum is laminated on the release layer 2 by vapor deposition to provide the vapor deposition layer 3. At this time, the thickness of the vapor deposition layer shall not exceed 300 mm.

  Next, an adhesive layer 4 is formed on the vapor deposition layer 3. For example, the adhesive layer 4 is provided by applying a coating liquid mainly composed of vinyl chloride-vinyl acetate copolymer / polyester resin on the vapor deposition layer by a gravure coating method or the like. As described above, the transfer foil 10 in which the release layer 2, the vapor deposition layer 3, and the adhesive layer 4 are sequentially laminated on the substrate 1 can be produced.

  Next, a process of obtaining the transfer object 20 (FIG. 2) using the transfer foil 10 (FIG. 1) of the present invention will be described. The transfer layer 5 of the transfer foil 10 produced as described above has the adhesive layer 4 side in close contact with the transfer target 6, heat and pressure are applied to necessary portions, and the substrate 1 is peeled off, thereby transferring the transfer target body. 6 can be transferred. The transfer can be performed, for example, using a transfer device manufactured by Navitas, and the transfer temperature can be 100 ° C. to 130 ° C. when the transfer target 6 is paper, for example. The transfer temperature can be selected according to the material of the transfer object. In this way, the transfer object 20 of the present invention can be obtained.

  Hereinafter, the present invention will be described specifically by way of examples.

<Example 1>
An acrylic resin composition was applied to a PET film having a thickness of 12 μm as a base material by a gravure coating method so that the film thickness after drying was 1 μm to obtain a release layer. Next, aluminum was vapor-deposited on the release layer surface to form a vapor-deposited layer having a thickness of 100 mm. Next, an adhesive layer composition comprising a vinyl chloride-vinyl acetate copolymer / polyester resin is applied on the vapor-deposited layer by a gravure coating method so that the film thickness after drying is 2 μm to form an adhesive layer. A transfer foil was prepared.

Next, the adhesive layer surface of the transfer foil prepared above and the printing surface of the paper, which is a transfer body on which a pattern has been printed in advance, are overlapped, and the transfer temperature is 120 ° C. and the transfer pressure is 1000 N using a transfer device manufactured by Navitas. The product to be transferred was obtained by transfer under the transfer condition of / cm ² . A transfer plan view of the obtained transfer object is shown in FIG.

<Example 2>
A transfer foil was produced in the same manner as in Example 1 except that the thickness of the aluminum vapor deposition was 50 mm, and a material to be transferred was obtained.

<Comparative Example 1>
A transfer foil and a material to be transferred were obtained in the same manner as in Example 1 except that the film thickness of aluminum deposition was 500 mm. FIG. 4 shows a transfer plan view of the obtained transfer object.

<Comparison result>
When Example 1 and Example 2 were compared, Example 2 with a thinner vapor deposition layer thickness gave a transfer result with higher transparency. From this, it was confirmed that the transparency of the transfer result can be adjusted by the deposited layer thickness. The appearances of the transfer object according to Example 1 and the transfer object according to Comparative Example 1 were compared. As a result, the thing of the comparative example 1 has high concealment property, and the pattern under the transfer foil cannot be seen, but the transferred object according to Example 1 shows the pattern under the transfer foil through, and has a unique texture. was gotten.

  If the transfer foil according to the present invention is used, an expression utilizing a vapor-deposited layer having transparency is possible. For example, the design and characters printed on the transfer object can be seen through the transfer foil. This is considered to be used mainly for adding decorativeness to papers such as various packaging materials and books.

1: Substrate 2: Release layer 3: Metal vapor deposition layer 4: Adhesive layer 5: Transfer layer 6: Transfer object 10: Transfer foil 20: Transfer object

Claims (2)

  A transfer foil in which a release layer, a metal vapor deposition layer, and an adhesive layer are sequentially laminated on at least one surface of a substrate, and the film thickness of the metal vapor deposition layer does not exceed 300 mm.   A material to be transferred obtained by transferring the transfer foil according to claim 1.