JP2914436B2 - Three-dimensional transfer sheet and three-dimensional transfer method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for transferring a three-dimensional figure and a transfer sheet used for the method.

[0002]

2. Description of the Related Art Letters, symbols, numbers or figures (hereinafter collectively referred to as figures) are formed on a mount or base material made of paper, plastic film or the like to form a transfer paper, and the transfer paper is coated. A transfer method in which a figure is transferred to a transfer member by transferring the figure to the transfer member and the mount is peeled off is well known. Among such transfer methods, a heat transfer method in which transfer paper is transferred by heating is known.

In the three-dimensional transfer method, a foam layer is foamed at the time of heat transfer to give a figure a thickness. In the conventional foaming method, since the entire foamed layer is simply colored with one color or divided into a plurality of portions and colored with different colors, it is not possible to express a fine picture or the like on the transferred figure. Assuming that the necessary pattern is drawn on the base material using the ink made of a foaming agent, and the pattern made of the foaming agent is foamed by heat simultaneously with the transfer, so that the picture pattern is expressed on the surface of the transferred figure However, since the ink for drawing the picture itself is made of a foaming agent and is foamed by thermal transfer, the color and contour of the picture pattern are blurred, and the commercial value is reduced.

[0004]

An object of the present invention is to provide a non-foamable ink layer outside a foam layer and print a desired pattern or the like on the ink to form a three-dimensional transfer pattern. It is an object of the present invention to provide a three-dimensional transfer method of a figure in which a pattern is colored and / or a contour line is clarified. Another object to be solved by the present invention is to provide a transfer sheet used for performing the three-dimensional transfer method as described above.

[0005]

The three-dimensional transfer sheet according to the first invention of the present application draws an extensible ink layer on a surface of a substrate in a desired pattern and detachably attaches the ink layer to the substrate. Is provided with a heat-foaming layer that foams by heating so that the periphery of the ink layer is exposed, and an adhesive layer that covers them is provided on the ink layer and the foam layer. It is configured to be adhered to. In the three-dimensional transfer sheet according to the second invention of the present application, an extensible ink layer is drawn on a surface of a base material in a desired pattern and detachably adhered thereto, and a foamed layer foamed by heating is formed on the ink layer. It is configured so that the periphery of the ink layer is exposed, and an adhesive is applied so as to cover the foam layer and the ink layer during transfer. In the three-dimensional transfer method according to the third invention of the present application, an extensible ink layer is drawn on a surface of a base material in a desired pattern and adhered in a releasable manner, and a foamed layer that foams by heating is formed on the ink layer. A three-dimensional transfer sheet is formed by providing the periphery of the ink layer to be exposed, and an adhesive is applied so as to cover the foam layer and the ink layer during transfer to the transferred sheet,
The transfer sheet is superimposed on the transfer sheet such that the adhesive is on the transfer sheet side, and the stacked sheet is heated to a desired temperature while pressing it with a desired pressure to adhere the adhesive to the transfer sheet. Including that.

In the three-dimensional transfer sheet according to the first aspect, the foamed layer may contain polyurethane or a soft vinyl chloride resin. Further, in the three-dimensional transfer sheet according to the second invention, the foamed layer contains silicone,
The adhesive may include silicone, and the foamed layer may be heated to a temperature below the temperature at which the foaming agent foams to stabilize the silicone. The third above
In the three-dimensional transfer method according to the invention, the foamed layer may contain a foaming agent and silicone, and the silicone may be stabilized by heating the foamed layer to a temperature lower than a temperature at which the foaming agent foams.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross section of a transfer sheet according to the present embodiment. The transfer sheet 1 has an ink layer 3 releasably disposed on a base material 2, that is, a base material 2 made of a plastic film, paper whose surface is processed with resin, or the like. This ink layer is formed in accordance with a figure (character, symbol, numeral, etc.) to be transferred.
For example, as shown in FIG.
In the case of a human face, the human face is drawn by ink, for example, by screen printing. That is, when the ink layer 3 is screen-printed as a human face, the face 31 uses skin-colored ink, the hair part 32 and the eyebrow part 33 use black or blonde ink, and the eyes 34 use black or blonde ink. Blue ink is used, and the outlines of the mouth 35 and the nose 36 are printed using black or another color ink, and the portions of different colors are printed as separate processes.

The material of the ink constituting the ink layer 3 is preferably a material having high extensibility, such as a urethane resin or a soft vinyl chloride resin. This is because the ink layer needs to be easily stretched in order for the foam layer described later to sufficiently foam. When printing inks of different colors in different processes, it is necessary to prevent adjacent inks from sticking to each other and separating at the boundary when the ink layer is stretched. Even if printing is performed in different steps, the adhesiveness at the boundary can be sufficiently ensured. Further, the thickness of the ink layer is determined in consideration of the fact that the ink layer becomes thinner due to expansion of the foam layer. Also,
The material and surface condition of the base material are selected so that the ink layer formed or printed thereon can be easily peeled off in a transfer step described later.

After the formation or printing of the ink layer 3 is completed,
A foam layer 4 is formed on the ink. The foam layer 4 is formed so as to overlap the substantially entire ink layer 3 such that the peripheral portion of the ink layer 3 slightly remains. The foam layer 4 is formed by mixing a commercially available foaming agent that foams by heating in a powder or paste form with another material. Other materials to be mixed with the foaming agent may be a heat-sealable material such as polyurethane or soft vinyl chloride resin or a material having room-temperature curability, for example, RTV silicone, but the latter is preferred in this embodiment. The thickness of the foam layer is determined according to the necessary bulge of the graphic to be transferred. As a method for forming the foamed layer to a required thickness, a screen printing method or another method may be used. In any case, it is desirable to form the layer to a desired thickness in one step, but it may be divided into a plurality of steps as necessary. In order to separate the figure to be transferred from a human face as shown in FIG. 2 and separate the face 31 and the hair part 32 by a boundary line 37 into separate expanded shapes, as shown in FIG.
What is necessary is just to form the discontinuous part 41 in the foam layer 4.

As described above, the three-dimensional transfer sheet 1 of the first embodiment is completed. When a figure is transferred to a transfer sheet such as cloth, paper, resin film, and plate material using this three-dimensional transfer sheet, immediately before performing the transfer (here, immediately before means not several days but several hours before) 4), an adhesive 5 is applied so as to cover the ink layer 3 and the foam layer 4 of the three-dimensional transfer sheet 1 as shown in FIG. The adhesive 5 may be, for example, a commercially available hot-melt welding agent, polyurethane or the like, which can be melted by heat and adhere to the transfer-receiving sheet, or a material which cures and adheres by heating, for example, RTV silicone. Is mixed, RT is used to improve the adhesion between the foam layer and the adhesive layer.
V silicone alone or a mixture thereof is preferred. This adhesive 5
4 is applied so as to cover the exposed portion (portion not covered with the foam layer) of the outer peripheral edge of the ink layer 3 and the foam layer 4 as shown in FIG. When the foamed layer 4 has a discontinuous portion 41 as shown in FIG. 3, the adhesive 5 also enters the portion. As can be seen from the above description, the three-dimensional transfer sheet 1 of this embodiment is stored and sold without applying an adhesive,
It is suitable for applying and using an adhesive just before transferring.

Next, as shown in FIG. 5, the transfer sheet 1 on which the adhesive 5 is applied is inverted on the transfer sheet 10, that is, the layer of the adhesive 5 of the transfer sheet 1 is Lay them on the 10 side. Thereafter, the heated press plate 11 or the like is used to move the transfer sheet 1 from the transfer sheet 1 to the transfer sheet side for a desired time (for example, 15 to 2).
0 seconds) Apply desired pressure and heat to desired temperature. Then, the adhesive layer 5 is melted and adhered to the transfer-receiving sheet 10, and the foamed layer 4 starts to foam and expand. Thus, the three-dimensional transfer method using the three-dimensional transfer sheet is completed. When the three-dimensional transfer is completed, the three-dimensional transfer graphic 6 is formed on the transfer-receiving sheet. The state at this time is as shown in FIG. As can be seen from FIG. 6, the graphic transferred to the transfer-receiving sheet 10 rises three-dimensionally due to the foaming of the foam layer 4, so that the ink layer 3 that has appeared on the front side by the transfer is stretched. When the three-dimensional figure to be transferred is a human face, the three-dimensional figure is as shown in FIGS. 7A and 7B. The heating direction may be from the transfer sheet side or from the base material side of the transfer sheet. When the transfer sheet is made of a soft cloth or film, the transfer sheet side is supported by a relatively hard member, and a relatively flexible member is applied to the transfer sheet substrate side. It is good to transfer. By doing so, the expansion of the foam layer toward the ink layer can be promoted.

FIG. 8 shows a three-dimensional transfer sheet 1a according to another embodiment of the present invention. In this embodiment, an adhesive layer 5 is further added to the three-dimensional transfer sheet 1 of the above embodiment.
In a state in which a is formed in advance, storage, sale, and the like can be performed. That is, the ink layer 3 and the foam layer 4 are formed on the base material 2. The ink layer 3 may be the same in material and formation method as the ink layer of the above-described embodiment, and thus the detailed description is omitted. Further, the foamed layer 4 is formed by mixing other materials with a commercially available foaming agent that foams by heating in a powder or paste form as in the above-described embodiment, and other materials mixed with the foaming agent include: In this embodiment, a soft vinyl chloride resin or polyurethane is preferable. The method of forming the foam layer 4 may be the same as in the above embodiment.

After the formation of the foam layer 4 is completed, an adhesive layer 5a is formed so as to cover the ink layer 3 and the foam layer 4. The material forming the adhesive layer may be any material such as a commercially available hot melt welding agent, polyurethane, or soft vinyl chloride resin, which can be melted by heat and adhere to the transfer-receiving sheet. After being applied on the ink layer and the foam layer 4, it is evaporated to dryness. As shown in FIG. 8, the adhesive layer 5a is formed so as to cover the exposed portion of the outer periphery of the ink layer 3 (the portion not covered by the foam layer) and the foam layer 4. If the foam layer 4 has a discontinuous portion 41 as shown in FIG. 3 as in the above-described embodiment, the adhesive layer 5 is made to enter into that portion as well. Thus, the transfer sheet 1a of this embodiment is produced. In order to improve the adhesion between the foam layer 4 and the adhesive layer 5a, the material mixed into the foam layer and the material of the adhesive layer are the same, for example, a soft vinyl chloride resin is mixed into the foam layer. In this case, the same soft vinyl chloride resin is preferably used for the adhesive layer 5a. Also,
The transfer sheet 1a of this embodiment is suitable for being stored and sold in a state where the adhesive layer 5a is formed in advance.

When a figure is transferred to a transfer sheet 10 such as paper or cloth using the transfer sheet 1a formed as described above, similarly to the embodiment shown in FIG.
First, the transfer sheet 1 a is inverted on the transfer sheet 10, that is, the transfer sheet 1 is overlapped so that the adhesive layer 5 of the transfer sheet 1 is on the transfer sheet 10 side. Thereafter, the heating press plate 11 or the like is used to move the transfer sheet 1 from the transfer sheet 1 toward the transfer sheet for a desired time (for example, 15 to 20).
Second) Apply desired pressure and heat to desired temperature.
Then, the adhesive layer 5 is melted and adhered to the transfer-receiving sheet 10, and the foamed layer 4 starts to foam and expand. Thus, the three-dimensional transfer method using the three-dimensional transfer sheet is completed.

In each of the above embodiments, the case where one transfer graphic is formed on the base material has been described. However, a plurality of graphics can be formed separately from each other. In this case, even if the color and pattern of the ink layer differ depending on each figure, the ink layer can be formed by performing screen printing in a plurality of steps.

[0016]

According to the three-dimensional transfer sheet and the transfer method of the present invention, the following effects can be obtained. (1) Since the ink layer and the foam layer are separated from each other to represent a graphic on the ink layer, a three-dimensional graphic of a different color can be formed on the same surface. (2) The thickness of the figure, that is, the bulge is 2 to 3 mm
It is possible to obtain a certain three-dimensional figure. (3) Since the ink layer is formed by screen printing,
A plurality of three-dimensional figures of different colors can be formed on the same transfer sheet.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a part of a three-dimensional transfer sheet according to a first embodiment of the present invention.

FIG. 2 is a plan view showing an example of a graphic of an ink layer formed on the three-dimensional transfer sheet of FIG.

FIG. 3 is a sectional view showing a modification of the three-dimensional transfer sheet of the first embodiment.

FIG. 4 is a sectional view similar to FIG. 1, showing a state in which an adhesive is applied to the three-dimensional transfer sheet of the first embodiment.

FIG. 5 is a partial cross-sectional view showing a case where transfer is performed using the three-dimensional transfer sheet of FIG. 1;

FIG. 6 is a cross-sectional view showing a three-dimensional transfer pattern transferred using the three-dimensional transfer sheet of FIG. 1;

FIG. 7A is a plan view illustrating an example in which the three-dimensionally transferred figure is a human face, and FIG. 7B is a cross-sectional view taken along line BB of [A].

FIG. 8 is a sectional view of a part of a three-dimensional transfer sheet according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a Three-dimensional transfer sheet 2 Base material 3 Ink layer 4 Foam layer 5 Adhesive 5a Adhesive layer 6 Three-dimensional transfer figure

Claims (3)

(57) [Claims] An extensible ink layer is drawn on a surface of a base material in a desired pattern and releasably adhered thereto. A foamed layer containing RTV silicone and foamed by heating is formed on the ink layer. A transfer for three-dimensional transfer, wherein the periphery is exposed and an adhesive layer is provided on the ink layer and the foam layer to cover them, and the periphery of the adhesive layer is adhered to the substrate. Sheet. 2. An extensible ink layer is drawn on a surface of a base material in a desired pattern so as to be detachably adhered thereto, and a foamed layer which foams by heating is exposed on the ink layer to expose the periphery of the ink layer. A three-dimensional transfer sheet which is provided as described above, and is used by applying an adhesive mainly composed of RTV silicone so as to cover the foam layer and the ink layer during transfer. 3. An extensible ink layer is drawn on a surface of a base material in a desired pattern and releasably adhered thereto, and a foamed layer containing RTV silicone and foamed by heating is formed on the ink layer. A three-dimensional transfer sheet is formed so that the periphery is exposed, and an adhesive mainly composed of RTV silicone is applied so as to cover the foam layer and the ink layer immediately before transfer to the transfer target sheet. The transfer sheet is superimposed on the transfer sheet so as to be on the transfer sheet side, and the laminated sheet is heated to a desired temperature while being pressed at a desired pressure, and the adhesive is adhered to the transfer sheet. A three-dimensional transfer method comprising foaming a layer.