JPH01162862A - Patterning finish method of synthetic fiber cloth - Google Patents

Abstract

PURPOSE: To simply draw a complicatedly and finely drawn relief pattern on a fabric by printing black bodies on a thermoplastic synthetic fiber fabric through the electrostatic print-dyeing method, then allowing the black bodies to generate heat by irradiation with near infrared rays thereby deforming the black bodies-printed parts with heat. CONSTITUTION: At first, a static copying machine is used to convert an original pattern image to a static pattern image and a magnetic toner including black fine particles of, for example, graphite or carbon black is allowed to fly to a fabric made of thermoplastic synthetic fiber to copy the original image on the fabric. The image-copied fabric face is irradiated with near-infrared beams to allow the magnetic toner sticking to the pattern to generate heat. Thus, the thermoplastic fibers having the pattern printed with the magnetic toner are heated to soften, shrink, fuse or melt-break the printed pattern whereby a design pattern is drawn along the original pattern on the synthetic fiber fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a technique for drawing patterns on the surface of a fabric made of thermoplastic synthetic fibers.

[Conventional technology]

A method of drawing patterns on fabric using an electrostatic copying device. In other words, the original image is converted into an electrostatic image in the electrostatic copying device, and a magnetic toner containing dye is splashed onto the fabric to copy the original image onto the fabric. A method of dyeing and printing patterns according to the law (hereinafter referred to as electrostatic printing method) has recently been developed and is well known (Japanese Patent Publication No. 61-25835, Japanese Patent Publication No. 60-568).
35, Special Publication No. 60-9155, Special Publication No. 59-20795
, Special Publication No. 59-16033).

Furthermore, it is a well-known and commonly used technique (hereinafter referred to as the embossing method) to press a heated embossing roller onto the surface of a four-piece sheet made of thermoplastic synthetic fiber to form an uneven pattern.

The present inventors printed graphite, carbon black, and other horse body fine particles (hereinafter collectively referred to as "black bodies") on the surface of a fabric made of thermoplastic synthetic fibers, and irradiated them with near-infrared rays. The raw material is heated to generate heat, and a part of the highly visible thermoplastic synthetic fiber to which the black body is attached is heated to soften, shrink, melt, fuse, or melt and break, and the printed pattern is printed on the fabric. (hereinafter referred to as the prior art) and filed a patent application (Japanese Patent Application No. 142142/1983).
(Japanese Patent Application No. 62-46309, etc.)

[Problem that the invention seeks to solve]

In the electrostatic printing method, there are only a few types of dyes that can be applied to the magnetic toner, and the range of application is narrow, making it impractical in terms of the coloring properties of the dyes.

In addition, in the embossing method, the surrounding fibers contract due to the radiant heat from the heated embossing roll, so the groove width and spacing are reduced to 0.5
．． , it is not possible to create the following deeply uneven patterns.

In the prior art, a black body serving as a medium for heating thermoplastic synthetic fibers was simply attached to the surface of the fabric, so it was desired to simplify the printing method.

[Purpose of the invention]

Therefore, the present invention utilizes the electrostatic printing method for printing black bodies in the prior art, and makes it possible to easily draw deep, complex, and delicate uneven patterns on fabric with groove widths and intervals of 0.5.1 or less. purpose.

[Structure of the invention]

The present invention has been completed with this purpose,
In an electrostatic copying device, an original image is converted into an electrostatic image, and a magnetic toner containing graphite, carbon black, and other ring-shaped particles is deposited to copy the original image onto a fabric made of thermoplastic synthetic fiber. The copy surface is irradiated with near-infrared rays to generate heat in the attached magnetic toner, and the attached thermoplastic synthetic fibers are heated through the magnetic toner and softened, shrunk, melted, fused, or melted and ruptured to produce the original image. The feature is that a design pattern along the image is produced on the surface of the composite u, Ii textile fabric at tN1.

A known electrostatic copying device can be used, and since commonly used magnetic toner is based on carbon black, it can be applied to the present invention as is.

The magnetic toner containing the horse body only needs to be temporarily attached to the fabric surface until it is irradiated with near-infrared rays as described below.
After that, it can be removed by washing with water, so it is not necessary to add a binder, and since it is not intended to color the thermoplastic synthetic fibers, the amount of adhesion on the fabric surface can be reduced to 0. A very small amount of .1% by weight or less is sufficient.

Fabrics made of thermoplastic synthetic fibers to which the present invention is applied include those made only of thermoplastic synthetic fibers;
It also includes blended and interwoven products of thermoplastic synthetic fibers and natural fibers, and at least a portion of the surface fibers contain thermoplastic synthetic #li.
, ta are used.

To give an overview of the near-infrared irradiation method, infrared rays range from 0.72μ to 1000μ between visible light and microwaves.
It has a wide wavelength band up to 0.
The red Tad line in the wavelength band from 72μ to 1.5μ is considered near infrared, the infrared in the wavelength band from 1.5μ to 5.6μ is mid-infrared, and the infrared in the wavelength band from 5.6μ to 1000μ is far infrared. In the present invention, the fabric is irradiated with an infrared irradiation lamp that mainly emits near infrared rays from 0.72μ to 1.5μ in these wavelength bands, especially near infrared rays with a wavelength around O,'15p (750mμ). More generally, it is a cylindrical near-infrared lamp with an output of about 2 kW per unit length (m) that emits near-infrared rays with a main wavelength of around 750+wμ and has a black body attached or stamped on it. From 30 to 70 tofukai close range at speed 3~
Pass the fabric at 7 m/min.

Incidentally, a black body generates heat to the extent that it thermally deforms thermoplastic synthetic fibers only when it is strongly irradiated with near-infrared rays from a close distance, but a black body generates heat to the extent that it thermally deforms thermoplastic synthetic fibers. Near-infrared rays do not generate heat and do not thermally deform thermoplastic synthetic fibers.

The degree to which thermoplastic synthetic fibers are heated with near-infrared rays, that is, whether they are heated to an extent that softens, shrinks, melts, fuses, or melts and breaks, depends on the pattern and form of the fabric that is intended to produce FN1, Depending on the type of thermoplastic synthetic fiber, etc., the passing speed of the near-infrared lamp, the distance from the near-infrared lamp, the amount of black body adhesion, etc. are changed and set appropriately.

〔Effect of the invention〕

In the present invention, we focused on the fact that the horse's body absorbs near-infrared rays and generates heat at a high temperature more easily than thermoplastic synthetic fibers, and that this serves as a medium for heating by near-infrared rays. This method heats and deforms the fabric, thereby producing a design pattern on the surface of the fabric.It does not attempt to produce a design pattern FM based on the color of the black body. As long as it adheres to the surface of the fabric, it can be removed by washing with water, so it is sufficient to lightly print with an electrostatic copying device.For this reason, it can be applied to brushed products such as artificial leather, moquettes, etc., which were conventionally considered unsuitable. It can also be used to print black bodies on pile fabrics, and it can easily be used to heat and melt and shrink the pile in the area where the black bodies are printed to create uneven patterns on pile fabrics, and to print uneven patterns on thin fabrics. In this case, the grained pattern can be created by heat-shrinking the printing area of the black body, and changing the pattern can be done by simply replacing one original image set in the electrostatic copying device. It can be done in a very short time, and since the amorphous region of the fiber polymer increases due to heat melting and shrinkage in the area where the pattern is drawn in this way, increasing the inertia, the pattern PJ is dyed in different shading and lightness by post-dying. Furthermore, there are many industrial advantages of the present invention, such as the ability to create a gorgeous and luxurious fabric.

Claims (1)

[Claims] In an electrostatic copying device, an original image is converted into an electrostatic image, and a magnetic toner containing graphite, carbon black, or other black body particles is deposited to copy the original image onto a fabric made of thermoplastic synthetic fiber. The copy surface is irradiated with near-infrared rays to generate heat in the attached magnetic toner, and the attached thermoplastic synthetic fibers are heated through the magnetic toner and softened, shrunk, melted, fused, or melted and ruptured to produce the original image. A pattern finishing method for synthetic fiber fabric, which is characterized by drawing a design pattern that follows an image.