JP2001138692A - Flocked transfer sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flocked transfer sheet of which the transfer adhesive layer is so formed that it can be cut in conformity with a pattern or a letter presented in an original plate, without impairing the edge of a cutter. SOLUTION: A transfer adhesive layer formed on the whole of the upper ends of short fibers erected in a flocked sheet is constituted by a process wherein a thin film layer constituted of a thermoplastic synthetic resin adhesive presenting a crosslinking reaction to fix the tips of the short fibers in the thickness of a state of being thrust, and a film of thermoplastic synthetic resin, are fused in a laminated state with powder of the thermoplastic synthetic resin interposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flocking transfer sheet.

[0002]

2. Description of the Related Art A flocking transfer sheet forms a short fiber planting layer by applying an adhesive for planting short fibers to the surface of a base plate selected from cloth, paper, or a synthetic resin sheet. . As the adhesive for forming the short fiber laying layer, an adhesive compatible with each base plate is selected. The adhesive is selected to have a role as a short fiber laying layer suitable for later processing described later. Short fibers are evenly and densely planted in the short fiber planting layer by electrostatic flocking. After the operation, the staple fibers are firmly implanted in the staple fiber-implanted layer after drying, and the staple fiber-implanted layer is used as a staple-fiber-implanted layer that is not peeled off from the base plate when the staple fibers are transferred. A flocking sheet.
A thin film having a thickness such that the short fibers planted in the short fiber planting layer of the flocking sheet are colored or not colored, and the upper ends of the short fibers are pierced into the upper ends of the short fibers. An adhesive layer is formed in a shape. While the thin-film adhesive layer does not dry, the so-called hot-melt adhesive, which has an affinity for the adhesive that forms the thin-film adhesive layer on the surface of the thin-film adhesive layer, Of thermoplastic synthetic resin powder. When the powder in the lower layer is settled on the surface of the adhesive layer in the form of a thin film, an operation of removing excess powder from the powder in the upper layer and leaving the required upper layer of powder is performed. After the operation, it is heated and dried to react with the thin-film adhesive layer as a thin-film adhesive layer (hereinafter referred to as a short-fiber fixing layer) in which the tips of the short fibers are firmly fixed. The lower layer powder settled on the fiber fixing layer is fused to the short fiber fixing layer in a settled state, and the upper layer powder is also melted on the short fiber fixing layer to cause a reaction for firmly fixing both. With this, a transfer adhesive layer is formed.

[0003] The short fiber fixing layer constituting the transfer adhesive layer is
When transferring the short fibers, it plays a role of pulling out the short fibers from the short fiber planting layer of the flocking sheet in a state of being fixed to the short fiber fixing layer. Therefore, the tip of the short fiber that has been softened or fixed by heat and pressure during transfer must not be pulled out from the short fiber fixing layer of the transfer adhesive layer. Therefore, conventionally, a crosslinking agent was added to this adhesive or a crosslinkable synthetic resin was used.

[0004] When the granular thermoplastic synthetic resin powder called the hot melt adhesive is fixed to the short fiber fixing layer, it is fused and fixed to the short fiber fixing layer. After cooling, it is fused and fixed in a granular state in which the original shape has been stopped.

[0005] Granular thermoplastic synthetic resin powder, which is a hot-melt adhesive constituting a transfer adhesive layer formed on the upper end of the short fibers planted on the flocking sheet via a short fiber planting layer, is in its original form. By fixing the transfer adhesive layer to the short fiber fixing layer in a state in which it is stopped, the surface of the transfer adhesive layer has a configuration similar to that of sound paper.

Heretofore, a thermoplastic synthetic resin film exhibiting a function as a hot melt adhesive for adhering a cloth such as a shirt is integrally laminated on the surface of the thin film adhesive layer constituting the transfer adhesive layer. It has been said that a transfer adhesive layer could not be formed so far because both have smooth surfaces.

The granular thermoplastic synthetic resin powder, which is the hot melt adhesive which is fused and fixed to the short fiber fixing layer to form the transfer adhesive layer, is melted by being heated and pressurized during transfer. It adheres to fabrics such as shirts by exerting a so-called anchor function, and maintains the function of strongly adhering to the short fiber fixing layer.

[0008] A transfer adhesive layer formed in a sound paper shape on the upper end of the short fiber forming the flocking transfer sheet,
There is also a type in which a pattern or a character is formed at the upper end of the short fiber planted on the flocking sheet, or a type in which the entire surface is formed on the upper end of the short fiber planted in the flocking sheet.

To transfer a flocking to a sports shirt or the like using a flocking transfer sheet in which the transfer adhesive layer is formed in the former form, a sound paper-like pattern formed on the fabric surface of the sports shirt or the like and a pattern of the flocking transfer sheet or characters is formed. The transfer adhesive layer surfaces are overlapped, and heated and pressed by a heating and pressing device.

[0010] By this operation, the transfer adhesive layer formed in the shape of the sound paper becomes a granular thermoplastic synthetic resin called a hot melt adhesive constituting the transfer adhesive layer on the fabric surface of the sports shirt. The powder melts and bonds the fabric surface of the sports shirt or the like to the short fiber fixing layer to which the upper ends of the short fibers planted on the flocking sheet are fixed.

After this operation is completed, when the flocked transfer sheet is removed from the fabric of the sports shirt, the short fibers are formed into the short fiber setting layer of the flocked sheet according to the shape of the short fiber fixing layer constituting the transfer adhesive layer. From the fabric and transferred to the fabric of the sports shirt as a design and characters with short fibers.

On the other hand, in order to transfer a short fiber to a design or a character displayed on an original plate on a sports shirt or the like using a flocked transfer sheet having a transfer adhesive layer of the latter type, the flocked transfer sheet itself or In the method, the transfer adhesive layer of the flocking transfer sheet must be cut with a cutter according to the design and characters displayed on the original.

By the way, since the transfer adhesive layer is formed in the shape of a sound paper as described above, the cutting edge of the cutter may be damaged when the cutting is performed. However, there is a disadvantage in terms of economy and work efficiency that the cutting blade must be replaced.

[0014]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned disadvantages and provides a transfer adhesive layer of a flocking transfer sheet in which a transfer adhesive layer is formed on the entire upper surface of the short fiber planted on the flocking sheet. An object of the present invention is to provide a flocking transfer sheet formed as a transfer adhesive layer that can be cut into the shape of a design or a character displayed on an original plate without damaging the cutting edge of the cutter. Further, the present invention is capable of obtaining a transfer flocking adapted to stretchability and air permeability of a sports shirt or the like as a material to be transferred.

[0015]

Means for Solving the Problems The structure of the transfer adhesive layer formed on the entire upper surface of the short fiber planted on the flocking sheet is fixed by a cross-linking reaction in which the tip of the short fiber is pierced and fixed. A thin film layer made of a thermoplastic synthetic resin adhesive exhibiting, and a powder of a thermoplastic synthetic resin which is a hot melt adhesive having an affinity for the adhesive forming the layer is interposed on the layer surface, and the upper layer is formed thereon. A flocking transfer sheet formed by fusing a film of a thermoplastic synthetic resin, which is a hot melt adhesive having an affinity for the powder adhesive, in a laminated state. In addition, a flocking transfer sheet having a transfer adhesive layer in which a number of small holes are formed at least in the transfer adhesive layer.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The flocking transfer sheet of the present invention is an improved transfer adhesive layer of a conventional flocking transfer sheet. Therefore, in order to produce the flocking transfer sheet of the present invention, a flocking sheet produced by a conventional method is used as a pre-process.

In order to produce a flocking sheet using, for example, a transparent synthetic resin film on the base plate by passing through the process according to the conventional method, the short fiber planting layer formed on the surface of the film must first be It is formed as an adhesive layer that does not peel off from the film surface together with the short fibers transferred during the flocking transfer. Furthermore, the short fiber planting layer is formed as a short fiber planting layer that firmly implants the roots of the planted short fibers and maintains the planting state that does not hinder post-processing. The short fiber planting layer presents a planting state in which the planted short fibers do not fall down when forming the transfer adhesive layer at the tip of the planted short fibers,
The staple fiber laying layer is formed as an adhesive layer in a state where the root of the staple fiber is drawn straight out of the staple fiber laying layer when the staple fiber is transferred.

[0018] A transfer adhesive layer is formed to pull out and transfer the short fibers planted in the short fiber planting layer of the flocking sheet during the transfer.

The transfer adhesive layer may contain a crosslinking agent,
Alternatively, it functions as a short fiber fixing layer having a thickness in a state in which the front end of the short fiber is pierced over the entire front end of the short fiber planted on the flocking sheet with an adhesive made of a crosslinkable thermoplastic synthetic resin. It is applied as a thin film layer to serve.

While the thin film layer is not dried, a fine powder made of a granular thermoplastic synthetic resin called a so-called hot melt adhesive having an affinity for the synthetic resin adhesive for forming the thin film layer is applied to the thin film layer. Spray on the surface. This powder is
Heretofore, it has been used as a function of bonding the short fiber fixing layer as the thin film layer and the cloth product as the transfer target at the time of transfer, but the powder of the present invention is the short fiber fixing layer. Fine powder is desirable because it functions to bond the thin film layer to a thermoplastic synthetic resin film which is a hot melt adhesive described later.

The powder in the middle and lower layers of the powder sprayed on the thin film layer is settled, and an operation of removing excess powder from the upper layer of powder is performed. Then, the powder is heated and dried according to a conventional method. An operation for forming a transfer adhesive layer in the shape of a circle is performed. Thereafter, a thermoplastic synthetic resin film called a hot melt adhesive having an affinity for the powder is laminated on a surface exhibiting a sandpaper shape, and subjected to heat processing in a state where the laminated surface is pressed with a pressing device, and The powder in the form of sandpaper and the film are fused and integrated.

In another method, after performing the above operation [0020], the surface on which the fine powder is sprayed is coated with an electrode made of a thermoplastic synthetic resin called a so-called hot melt adhesive having an affinity for the fine powder. A thin film is arranged in a laminated state on the thin film layer serving as the short fiber fixing layer with the fine powder interposed.

In this laminated state, heating and drying are performed in consideration of the heating temperature and the pressing force of the pressing device. Due to this heating and drying, the adhesive layer applied as the thin film layer has a short end in which the tip of the short fiber is stuck in a state where the tip of the short fiber planted through the short fiber planting layer is pierced into the flocked sheet. It becomes a crosslinked synthetic resin adhesive sheet as a fiber fixing layer, the fine powder is fused to this sheet, and the ultra-thin film is melted together with the fine powder. As a result, the fine powder fuses the crosslinked synthetic resin adhesive sheet and the ultrathin film. That is, with these adhesives, an ultrathin film made of a thermoplastic synthetic resin called a hot melt adhesive cannot be superimposed and adhered on the short fiber fixing layer, which is a thin film adhesive layer, so far. However, a laminated transfer adhesive layer capable of integrating an ultrathin film made of a thermoplastic synthetic resin on the surface of the short fiber fixing layer is produced.

Since the transfer adhesive layer of the above-described flocking transfer sheet is formed by disposing an ultra-thin film on the uppermost layer as described above, a hot-melt adhesive is used as in the transfer adhesive layer of the conventional flocking transfer sheet. The granular thermoplastic synthetic resin powder is not exposed on the surface of the transfer adhesive layer, so that the surface is not sandpaper-like and the surface of the transfer adhesive layer is formed as a smooth surface. become.

Therefore, even when the cutting edge of the cutter is moved on the transfer adhesive layer of the flocked transfer sheet according to the present invention on the transfer adhesive layer of the original plate, the cutting edge of the cutter is smoothly transferred and adhered. Since the surface of the agent layer is moved, the cutting blade of the cutter can be smoothly moved without being damaged. Then, the transfer adhesive layer can be cut into patterns and characters displayed on the original plate. By the above-described operation, it is possible not only to cut the flocking transfer sheet itself but also to cut only the transfer adhesive layer of the flocking transfer sheet.

When the transfer adhesive layer of the flocking transfer sheet is cut into the same shape as the pattern and character formed on the original plate by the above operation, after the operation is completed, the transfer adhesive layer other than the pattern and character forming portion is removed. Peel off. By this operation,
The short fibers whose tips are fixed to the short fiber fixing layer constituting the transfer adhesive layer together with the transfer adhesive layer to be peeled off can be peeled off from the short fiber planting layer of the flocking sheet. As a result, on the flocking sheet, the pattern displayed on the original plate, the pattern having the same shape as the character, the short fiber on which the character is planted, and the transfer adhesive layer having the same shape as the pattern and the character remain thereon. In other words, the flocked sheet surface can be a flocked transfer sheet in which short fibers having a transfer adhesive layer for a design to be transferred and a character are planted.

Further, at present, sports shirts and the like are being circulated in consideration of stretchability or ventilation. Accordingly, it is desirable that the transfer flocking to be transferred to these sports shirts and the like is formed with elasticity and air permeability. Sorry, so far the flocking transfer sheet,
In order to achieve the transfer flocking in conformity with the above-mentioned circumstances, no consideration is given to the stretchability that adapts to the stretchability of fabrics such as sports shirts, and no consideration is given to the breathability that adapts to the breathability of sports shirts and the like. According to the present invention, in order to obtain the transfer flocking in accordance with the above-mentioned circumstances, a large number of small holes are formed in the transfer flocking sheet itself or at least the transfer adhesive layer by, for example, a punching means. With this configuration, the transfer adhesive layer of the transfer flocking transferred to the sports shirt exhibits a function as a flexible transfer flocking having air permeability. Of course, the small holes may be formed in the transfer flocking sheet itself.

[0028]

The flocked transfer sheet according to the present invention has the transfer adhesive layer formed as described above, so that the shape of the pattern and characters displayed on the original plate does not hurt the blade of the cutter, and the transfer flocked sheet of the transfer flocked sheet is not damaged. Cutting can be performed with the transfer adhesive layer, and thereby efficient cutting can be performed. Furthermore, a transfer flocking corresponding thereto is formed on a sports shirt or the like in consideration of elasticity or air permeability. Furthermore, when the base plate of the flocking sheet is a transparent synthetic resin sheet, the base plate serves as a transparent plate, which functions usefully for transfer positioning at the time of transfer, and improves transfer efficiency. it can.

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Claims (2)

[Claims] 1. A thermoplastic composition exhibiting a cross-linking reaction for fixing a structure of a transfer adhesive layer formed on the entire upper end of a short fiber planted on a flocking sheet with a thickness in a state where the tip of the short fiber is pierced. A thin film layer made of a resin adhesive, and a powder of a thermoplastic synthetic resin which is a hot melt adhesive having an affinity for the adhesive forming the layer is interposed on the surface of the layer, and the powder adhesive is formed on the upper layer. A flocked transfer sheet comprising a film made of a thermoplastic synthetic resin, which is a hot-melt adhesive having an affinity for, fused in a laminated state. 2. The flocking transfer sheet according to claim 1, wherein the transfer adhesive layer has a plurality of small holes perforated at least in the transfer adhesive layer.