JPH06270319A - Flocking sheet - Google Patents

Abstract

PURPOSE:To provide a flocking sheet capable of well holding flatness during work and capable of performing thermal reversal flocking transfer of high quality. CONSTITUTION:A plastic sheet having flexible sheet, for example, a polyester sheet is used as a flocking sheet. When a temporary adhesive 12 is directly applied to this plastic sheet 50, it is repelled and, therefore, a substrate film 52 mixed with appropriate particles 54 having conductivity is formed on the plastic sheet 50. By the substrate film 52, conductivity is imparted to the plastic film and unvenness is formed on the surface of the film. Whereupon, an electric field for flocking is well formed and wettability is enhanced and the temporary adhesive 12 can be well and uniformly applied. Since flatness is kept different from pasteboard, flocking work can be well performed and quality can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for producing a thermal reversal type flocking transfer material for flocking short fibers (hereinafter referred to as "pile") using an electric field and transferring the piled flock to clothes or the like. The present invention relates to an improvement of a sheet for hair transplant suitable for being applied.

[0002]

2. Description of the Related Art As a method for producing a heat reversal type flocking transfer material, for example, Japanese Patent Publication Nos. 36-4768 and 53-356.
There is one disclosed in the Japanese Patent No. 19 patent. On the other hand, the inventors of the present invention improved the above invention and independently developed a heat reversal type flocked transfer material. The outline will be described. Referring to FIGS. 3 to 5, first, as shown in FIG. 3A, a hair transplant sheet 10 having an appropriate size is prepared. For the flocking sheet 10, for example, a high-quality paper having permeability is used, and the temporary adhesive 12 is applied to a portion of the flocking sheet 10 on which the piles are to be flocked.

The temporary adhesive 12 is one that can easily carry out a pile transfer process which will be described later.
When performing multicolor flocking, it takes time to finish flocking of all colors, so a type that does not dry during that time is used. More specifically, the temporary adhesive 12 should not be such that the flocked sheet 10 curls when a temporary adhesion layer is formed on the flocked sheet 10 or when dried after flocking. Further, at the time of transferring the pile, it is necessary that the flocked pile is properly extracted and transferred. As the temporary adhesive 12 satisfying such a condition, for example, a water-soluble one obtained by mixing an acrylic copolymer resin adhesive with polyethylene glycol, paraffin emulsion or the like for adjusting viscosity and adhesive strength is used.

Next, as shown in FIG. 1B, a silk screen printing plate 14 having a desired pattern is prepared, and an appropriate spacer (on the temporary adhesive 12 applied to the flocking sheet 10 is prepared). (Not shown). In the example of the figure, the silk screen printing plate 14 is formed with a reverse character pattern of the alphabet “A”.

[0005] On the other hand, the pile 20 to be flocked is the storage box 1
It is stored in 6. The pile 20 is made of nylon,
It is made of short fibers obtained by cutting synthetic fibers such as tetron into extremely short lengths, and is pre-charged. Storage box 16
An electrode 18 for applying an electric field is provided on the lower ejection surface, and the electrode 18 is formed in a mesh shape so that the pile 20 can pass therethrough. The electrode 18 is connected to a DC power source (high voltage generator for electric field generation) 22. The flocking sheet 10 coated with the temporary adhesive 12 is placed on a work table (not shown) and is grounded through this work table. A plurality of storage boxes 16 are provided for each pile color, for example.

Next, when, for example, red flocking is performed on the inverted pattern portion of the alphabet "A", the red pile 2 is used.
The storage box 16 filled with 0 is arranged on the silk screen printing plate 14 as shown in FIG. 3B, and a voltage is applied between the storage box 16 and the ground by the power supply 22. Then, an electric field is formed between the electrode 18 and the flocking sheet 10 placed on the ground side, and the electrode 18 of the storage box 16 is formed.
The piles 20 discharged from the side pass through the silk screen printing plate 14 along this electric field, and become to be flocked on the application surface of the flocking sheet 10 with the temporary adhesive 12.

Since the reverse pattern of "A" is formed on the silk screen printing plate 14 as described above, the pile 20 passes through the screen mesh at this reverse pattern portion and the flocking sheet 10 is temporarily bonded. It flies almost vertically on the coated surface of the agent 12 and pierces and adheres to the temporary adhesive 12 to be transplanted. At this time, the sheet 10 for flocking
Since a proper space is provided between the pile 20 and the silk screen printing plate 14, the pile 20 is used for the flocking sheet 10
The hair will be planted on the top in the desired pattern. Figure 4 (A)
In this way, the flocked part 2 of the inverted pattern of "A" is
4 is formed.

[0008] Such a hair transplanting process is repeated a plurality of times as necessary. For example, as shown in FIG. 2B, a silk screen printing plate (not shown) on which an inverted pattern of the alphabet “D” is formed is prepared. 26 is formed. Further, as shown in FIG.
Around the "D" flocked portions 24 and 26, flocking is performed by, for example, a blue pile to form a flocked portion 28. A flocked body is thus obtained.

After the above work, the temporary adhesive 12 applied to the sheet 10 for flocking is dried. This drying may be natural drying, but heat drying is performed from the viewpoint of work efficiency. By this drying treatment, the flocking sheet 1
The one end of the pile 20 having the hairs flocked on it is firmly and temporarily attached to the dry temporary adhesive 12. Then, after the drying, the unnecessary pile attached to the sheet during the above-mentioned flocking operation is removed.

Next, as shown in FIG. 5 (A), a fixing adhesive 30 prepared by mixing a cross-linking agent with the surface of the flocked portions 24, 26, 28 formed on the flocking sheet 10 is prepared. It is applied in the desired shape. After the completion of this work, a granular or powdery hot melt adhesive 32 is applied on the fixing adhesive 30.
Is sprayed. Then, after removing the excess granular or powdery hot melt adhesive 32, it is heated and dried to fuse the granular or powdery hot melt adhesive 32 to the surface of the adhesive 30 for fixing in a semi-molten state.

The fixing adhesive 30 is the pile 20 in which the temporary adhesive 12 applied to the flocking sheet 10 is flocked.
For fixing the tip of the adhesive more strongly than the temporary adhesive 12, and by melting the hot-melt adhesive 32 by heating and drying without melting by itself, the crosslinking is promoted and converted into a film. Therefore, it is preferable that the pile 20 is blended so as to have flexibility that matches expansion and contraction of the cloth even after the pile 20 is transferred to clothes or the like to be described later. For example,
An emulsion type acrylic synthetic resin mixed with a softening agent is used and is applied by a method such as screen printing. By this operation, the heat reversal type flocked transfer material is completed.

Next, in order to perform flocking transfer using the thermal reversal type flocking transfer material manufactured by carrying out such operations, the hot melt adhesive 3 fused on the above-mentioned fixing adhesive 30 is used.
The second surface is inverted and placed so as to come into contact with the desired position of the clothes 34 requiring transfer. Then, when pressure heating at a predetermined temperature is performed, the hot melt adhesive 32 melts and penetrates into the clothes 34, and the clothes 34 and the adhesive 30 for fixing are strongly bonded.

Then, when the temperature drops and the hot melt adhesive 32 solidifies, the flocking sheet 10 is peeled off from the clothes 34. Then, the strong adhesive action of the hot melt adhesive 32 adheres to the clothes 34 and the fixing adhesive 30.
The base of the pile whose tip is fixedly attached is pulled out from the temporary adhesive 12 and transferred to the clothes 34 side. The state after the transfer is shown in FIG. 6C, and the flocked portions 24, 26, and 28 are transferred to the clothes 34 side. By this transfer, the pattern is reversed, and the letters "A" and "D" of the alphabet stand out in the background portion of the square. It should be noted that a trace of the pile 20 being removed remains on the flocking sheet 10 side (not shown).

[0014]

By the way, as the above-mentioned flocking sheet 10, thick paper such as permeable high-quality paper is used as described above. However, if such a thick paper is applied with the temporary adhesive 12 or is dried after the piles are planted, curling or wavy deformation may occur and the flatness may be lost. Then, after the pile is planted, even if the adhesive 30 for fixing formed on the tip of the pile is applied to a desired shape and pattern, the pattern pattern portion of the planted part cannot be properly aligned, which causes the pattern to collapse. Further, when the thick paper is used, it is not possible to see through the pattern through the thick paper in the transfer position alignment to the clothes at the time of transfer, and there is a problem that the alignment work becomes troublesome.

One method for eliminating such a situation is as follows.
The use of a transparent synthetic resin sheet as the flocking sheet. However, even if a temporary adhesive is applied directly to a synthetic resin sheet to form a temporary adhesive layer, the synthetic resin sheet does not have permeability, so that the temporary adhesive cannot fit well and cannot be integrated. is there. The present invention is
Focusing on these points, it is an object of the present invention to provide a sheet for flocking, which can maintain good flatness during work and can obtain a high quality thermal reversal type flocking transfer material.

[0016]

A first aspect of the present invention provides a flocking sheet in which a pile is temporarily attached to a temporary adhesive applied to a portion to be flocked to form a flocking body for transfer, and the sheet is flexible. On the temporary adhesive coated surface of the plastic sheet having
It is characterized in that a base film containing a conductive granular material is formed for imparting conductivity and forming irregularities.

A second aspect of the present invention is a flocking sheet in which a pile is temporarily attached to a temporary adhesive applied to a portion to be flocked to form a flocking body for transfer, and the flocking sheet has flexibility and at least the above-mentioned properties. It is characterized in that a base film containing a granular material is formed for forming irregularities on the side of the temporary adhesive application surface of the plastic sheet having conductivity imparted to the temporary adhesive application surface.

[0018]

According to the present invention, a flexible plastic sheet is used as the flocking sheet. Then, a base film in which the granular material is mixed or dispersed is formed on the surface of the plastic sheet to which the temporary adhesive is applied. As a result, fine irregularities are formed on the base film surface side of the plastic sheet, the applicability of the temporary adhesive is improved, and the application can be performed well. Also,
If a conductive material is used as the underlayer granular material,
It is also possible to impart conductivity to the plastic sheet.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the hair transplant sheet according to the present invention will be described below with reference to the accompanying drawings. The same reference numerals are used for the same components as those of the above-described conventional example or components corresponding to those of the conventional example.

In this embodiment, a flexible plastic sheet having excellent heat resistance, for example, a polyester sheet is used as the flocking sheet 10. If this plastic sheet is too thick and stiff, it will not be able to smoothly perform the work when transferring it to clothes, and if it is too thin and soft, it will not be able to perform work such as flocking well, so consider them. To determine the thickness. For example,
The thickness is several tens of μm, specifically about 50 to 100 μm.

Next, the plastic sheet 50 used as the flocking sheet 10 is provided with conductivity in order to perform the flocking work well. As a method of imparting conductivity, there are generally a method in which the material itself has conductivity, a method in which a conductive material is mixed and dispersed, and the like.

On the other hand, when the temporary adhesive 12 is directly applied to the plastic sheet 50, the temporary adhesive 12 is repelled and the temporary adhesive 12 is removed.
As shown in (A), it becomes a land (island) shape. In this case, it is impossible to form a temporary adhesion layer that achieves excellent hair transplantation. As a method to solve such a problem,
There is a method in which the surface of the plastic sheet 50 is roughened by a sand blast method or the like to form a fine rough surface, and the sheet surface is subjected to a processing for physically enhancing the adhesive effect (for example,
(See Japanese Patent Publication No. 3-65791). This example is an example in which these two points, that is, imparting conductivity to the plastic sheet and roughening the surface of the plastic sheet can be performed at the same time.

That is, in this embodiment, the base film 52 is formed by admixing or spraying an appropriate conductive granular material on the entire surface of the sheet to which the temporary adhesive 12 is to be applied or a necessary portion of the sheet. To do so. Figure 2 (B)
FIG. 1A shows a cross section of the same taken along line # 1- # 1 of FIG.
As shown in this figure, the granular material 54 is mixed or sprayed and fixed to the base film 52. The temporary adhesive 12 is applied on the base film 52, as shown in FIG.

As the base film 52, the base film 52 itself does not peel off from the plastic sheet 50 when the pile is turned over to the clothes, and the temporary adhesive 12 peels from the base film 52 and adheres to the pile and moves to the clothes side. Which has a relatively high degree of adhesion to both the plastic sheet 50 and the temporary adhesive layer formed by the temporary adhesive 12, and has a good affinity with the plastic sheet 50 and the temporary adhesive 12. The superior ones are used. For example, in the case of a polyester sheet, a polyester-based synthetic resin solvent mixed with iron powder having a size of, for example, about 50 to 100 μm is used. A polyester-based synthetic resin agent mixed with such a conductive material is applied or sprayed on the plastic sheet 50 and then dried to integrate them to form a conductive plastic sheet.

Next, the advantages of applying the conductive plastic sheet 50 thus obtained to the flocking sheet 10 shown in FIGS. 3 to 5 will be described.
As described above, by forming the base film 52 in which the particles 54 are mixed or sprayed and fixed on the plastic sheet 50, unevenness due to the particles 54 is formed on the surface thereof.
The wettability of the temporary adhesive 12 is improved. Therefore, in FIG.
In the step of applying the temporary adhesive 12 shown in (A), the temporary adhesive 12 is well applied to a predetermined area to form a temporary adhesive layer.

Next, the indoor humidity is high, for example, 50.
In the pile flocking step of FIG. 3 (B) and FIG. 4 performed under the condition of being maintained in the range of 90% to 90%, the flocking sheet 1
Since a problem such as curling of the plastic sheet 50 forming 0 is prevented and the flatness is ensured, it is possible to obtain a good flocked portion in which end portions of each pattern pattern are aligned. In particular, since conductivity is imparted by the base film 52, an electric field is favorably formed between the net-like electrode 18 on the lower side of the storage box 16 and the flocking sheet 10, so that flocking is favorably performed. Further, in the step of FIG. 5 (B), since the plastic sheet 50 is transparent, the position of the hair-implanted portion with respect to the clothes is extremely smoothly aligned.

The present invention is not limited to the above embodiment, but can be applied to the following, for example. (1) There are various other methods of thermal reversal type flock transfer, and the present invention is applicable to any method.
For example, Japanese Examined Patent Publication (Kokoku) No. 3-7520 discloses a method of producing a transplanted short fiber flocked body in which a pattern is printed on a pile of flocked hair. Japanese Patent Publication No. 53-35619 discloses a fixing adhesive. A method of applying a thermal transfer appliqué is disclosed in which the desired pattern is applied to the flocked part (a temporary adhesive may be used as a pattern) and only the pattern part is transferred to clothes. The present invention is also applicable to combined flocking transfer (for example, the one disclosed in Japanese Patent Publication No. 4-65776).

(2) As a material of the flexible plastic sheet, an olefin resin such as polyethylene, polypropylene or polyvinyl chloride is typical, but various materials may be used. (3) In the above-mentioned embodiment, the clothes are used as the transfer target, but other objects can be used. Further, the color to be used may be a plurality of appropriate colors as necessary, and of course, may be a single color. Also, two or more piles may be mixed and used. For example, if you mix red pile and white pile and transplant hair, it will look pink visually.

(4) In the above embodiment, the insulating plastic sheet is simultaneously provided with conductivity for forming an electric field and unevenness for forming the temporary adhesive layer by the base film. In the case of having conductivity, it is sufficient that the base film is provided with unevenness only. In this case, non-conductive particles such as glass particles can be used as the particles. Of course, in the case where the plastic sheet has conductivity, there is no problem in forming the base film containing the granular material having conductivity. (5) In the above-mentioned examples, the conductive material is imparted to the plastic sheet by using the granular material having conductivity, but it does not hinder the use of the plastic sheet itself having conductivity. .

[0030]

As described above, the flocking sheet of the present invention has the following effects. (1) On the surface required portion of the flexible plastic sheet,
Since it was decided to form a base film mixed with conductive particles for the purpose of imparting conductivity and forming irregularities, the wettability is also improved and the temporary adhesive can be applied satisfactorily. Is also maintained to provide very high quality thermal reversal flock transfer.

(2) Since the base film mixed with the granular material is formed on the surface required portion of the flexible plastic sheet having conductivity to form the unevenness, the wettability is improved. The adhesive can be applied well, the flatness during the work is maintained, and very high quality thermal reversal type flocking transfer can be performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a hair transplant sheet according to the present invention.

FIG. 2 is a perspective view showing a defect of a plastic sheet and a sheet for flocking of the embodiment.

FIG. 3 is a perspective view showing the main steps of thermal reversal type flocking transfer.

FIG. 4 is a perspective view showing the main steps of thermal reversal type flocking transfer.

FIG. 5 is a perspective view showing the main steps of thermal reversal type flocking transfer.

[Explanation of symbols]

 10 ... Sheet for flocking 12 ... Temporary adhesive 14 ... Silk screen printing plate 16 ... Storage box 18 ... Electrode 20 ... Pile 22 ... AC power supply 24 ... Flocking part 26 ... Flocking part 28 ... Flocking part 30 ... Adhesive adhesive 32 ... Hot melt adhesive 34 ... Clothes 50 ... Plastic sheet 52 ... Base film 54 ... Granular body

Claims (2)

[Claims] 1. A flocking sheet in which a pile is temporarily adhered to a temporary adhesive agent applied to a portion to be flocked to form a flocking body for transfer, and the temporary adhesive agent application of a flexible plastic sheet is performed. A sheet for flocking, characterized in that an undercoating film containing conductive particles is formed on the surface for the purpose of imparting conductivity and forming irregularities. 2. A flocking sheet in which a pile is temporarily adhered to a temporary adhesive agent applied to a portion to be flocked to form a flocking body for transfer, and the flocking sheet has flexibility and at least the temporary adhesive agent is applied. A sheet for flocking, characterized in that a base film containing particles is formed for forming irregularities on the side of the surface of the plastic sheet on which the temporary adhesive is applied of which conductivity has been imparted.