JPH0224239B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for efficiently applying hair transplantation using a thermal transfer method.

Prior Art As shown in FIG. 2, a typical method for conventional thermal transfer flocking is to provide a temporary adhesive layer 9 on a releasable base material 8, and further implant short fibers 10 on the temporary adhesive layer 9. A transfer sheet D obtained by forming an adhesive layer 11 in a pattern on the short fibers 10 with an adhesive stronger than the temporary adhesive, and then spraying and fixing the powdered hot melt resin 12 thereon is transferred to the hot melt resin. Transferred material 13 such that 12 is in contact with a desired surface of transferred material 13.
It is known that a flocked tuft with a desired pattern is formed on the transferred object 13 by superimposing the transfer sheet D on the releasable base material 8 of the transfer sheet D, pressurizing and heating it, and peeling off the transfer sheet D. . This type of transfer sheet is also disclosed in Fig. 5 of JP-A-54-38973 and Fig. 3 of JP-A-56-141877, but such methods have the following drawbacks. It was hot. ) It is necessary to flock extra short fibers 10 onto the temporary adhesive layer 9, which is uneconomical. ) After transcription,
The side of the short fibers 10 that was in contact with the temporary adhesive layer 9 is the front side, so when coloring the short fibers 10, add the short fibers 10 to the temporary adhesive layer 9. If you do not fully color the contacting surfaces, it will be difficult to obtain a clear colored pattern, and it will not only be difficult to color, but also
There is also a limit to the short fiber length that can be used. )) For the same reason, gold, silver, and other pigments with extremely large particles cannot be used as coloring agents, and there is a limit to product development due to coloring. ) The transfer sheet D has extra short fibers, and the short fibers 10 will become the surface after transfer.
Since the tip is in contact with the temporary adhesive layer 9 from beginning to end, it is difficult to confirm the position of the desired pattern during transfer, resulting in poor workability and difficulty in obtaining a high-quality product.

There is also a method of providing a temporary adhesive layer in a pattern, as shown in Figure 4 of JP-A No. 54-38973 and Figure 2 of JP-A-56-141877, but this method does not Just because the amount of fiber used can be reduced does not eliminate the disadvantages of () to () above.

Furthermore, in such conventional methods, the releasable base material that acts as a transfer base material is a flocked base.
In order to facilitate the conduction of heat during transfer, it is not possible to make the fibers porous, and even if short fibers are used with a change in the tip, such as by forming a thinner tip, the short fibers will remain intact after transfer. Since the direction of is reversed,
It also has the disadvantage that the roots become the surface, and the effects of using special short fibers cannot be expected.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a method for performing various hair-planted appliqués with good workability and quality using a thermal transfer method, eliminating all of the drawbacks of the conventional methods as described above.

Structure of the Invention The method of the present invention, as shown in an example in FIG. Sheet A
A laminate sheet B is prepared by separately laminating a film layer 5 made of a weak adhesive or a hot-melt resin on a transfer base material 4, and the short fibers 3 are layered on the film layer 5 of the laminate sheet B. Flocked sheet A so that it touches
The short fibers 3 are temporarily attached to the film layer 5, and the releasable base material 1 is then peeled off from the adhesive layer 2.
A transfer sheet C is manufactured by fixing powdered hot melt resin 6 to the surface of the exposed adhesive layer 2, and this transfer sheet C is placed on a desired surface of the object 7 to be transferred so that the hot melt resin 6 is in contact with it, and then heated. The hot melt resin 6 is fused to the transferred object 7 by applying pressure, the transfer base material 4 is peeled off, and the flocked hair is applied onto the transferred object 7.

The adhesive layer 2 of the releasable base material 1 has sufficient adhesion to both the short fiber layer 3 and the hot melt resin layer 4, is suitable for water resistance, dry cleaning, etc., and is strong and flexible. It is preferable to use an adhesive that forms a film, and any of the usual acrylic adhesives, urethane adhesives, vinyl acetate adhesives, etc. can be used.

Next, the short fibers 3 are placed on the adhesive layer 2 using an electrostatic method.
Flocking is done by a method such as a vibrating method, but in the present invention, at this stage, the tufted pattern is exposed on the surface of the flocked sheet A, so if coloring is required, it is necessary to directly apply it to the surface of the short fibers 3. A desired pattern can be colored and printed, and colorants can be used without any restrictions. Therefore, the length of the short fibers 3 is not particularly limited, and even if the short fibers are as long as 2 to 3 mm, a high quality applique having a desired colored pattern can be obtained.

Laminated sheet B prepared separately from flocked sheet A
The film layer 5 is formed by coating a transfer base material 4 such as paper, non-woven fabric, or transparent film with an adhesive or a hot-melt resin having a weak adhesive strength. It is possible to adhere the short fibers 3, but it is only necessary that the short fibers 3 can be peeled off from the short fibers 3 by external means such as heating during transfer or by the force of the adhesive force with the hot melt resin 6. In particular, it is preferable to use a hot-melt resin whose adhesive strength can be easily varied depending on the degree of heating. A coating amount of about 15 microns is sufficient for the heat-melting resin.

In addition, if a heat-resistant transparent film is used as the transfer base material 4, it is convenient because the design of the flocked applique can be seen through during transfer.

After bonding the flocked sheet A and the laminated sheet B and peeling off the releasable base material 1, the hot melt resin 6 to be sprayed and fixed onto the adhesive layer 2 is made of polyamide,
One or more types of polyester, EVA, etc. are used, and those with a particle size of about 30 to 350 microns are often used.

In the present invention, the conditions for transfer using the transfer sheet C vary depending on the shape, material, etc. of the object to be transferred, but it is usually preferable to heat the object at about 100 to 180 DEG C. for 5 to 30 seconds while applying light pressure.

Effects of the Invention The present invention is economical because only the necessary number of short fibers are used for transfer, and it is possible to directly color the surface of the short fibers 3 to be transferred as the flocked sheet A, so it is possible to produce a wide variety of high quality fibers. It is possible to create hair transplants with various colored patterns. Furthermore, since there are no extra short fibers, it is easy to confirm the design during transfer.

[Brief explanation of drawings]

Figure 1 is a process diagram showing one embodiment of the present invention, Figure 2 is a process diagram showing an embodiment of the present invention.
The figure is a process diagram of the conventional method. 1, 8... Peelable base material, 2, 11... Adhesive layer, 3, 10... Short fiber, 4... Transfer base material, 5
... Film layer, 6, 12 ... Hot melt resin, 7, 13 ... Transferred material, 9 ... Temporary adhesive layer.

Claims (1)

[Claims] 1 1) An adhesive layer 2 is provided in a desired pattern on a removable base material 1, and short fibers 3 are flocked onto the adhesive layer 2 to produce a flocked sheet A, 2) Separately. Prepare a laminate sheet B in which a film layer 5 made of a weak adhesive or a hot-melt resin is laminated on a transfer base material 4, and 3) Place the laminate sheet B on the film layer 5 of the laminate sheet B with a flocked sheet A. The flocked sheets A are stacked so that the short fibers 3 of the fibers are in contact with each other, and the short fibers 3 are temporarily attached to the film layer 5. 4) Then, the releasable base material 1 is peeled off from the adhesive layer 2, and 5) The exposed adhesive is removed. A transfer sheet C is manufactured by fixing a powdered hot melt resin 6 to the surface of the layer 2, and 6) this transfer sheet C is placed on a desired surface of the object 7 to be transferred so that the hot melt resin 6 is in contact with the transfer sheet C, and heated and pressed. A method for thermal transfer flocking applique, which is characterized in that a hot melt resin 6 is fused to an object 7 to be transferred, and a transfer base material 4 is peeled off. 2. The method according to claim 1, wherein the film layer 5 is made of a hot-melt resin, and the short fibers 3 are temporarily attached to the film layer 5 by heating and pressurizing. 3. The method according to claim 1 or 2, characterized in that the short fibers 3 of the flocked sheet A are colored.