JPS5922791A - Preparation of suede like fabric - Google Patents

Abstract

PURPOSE:To prepare a suede texture fabric similar to natural suede in appearance and feeling, by a method wherein a fabric mainly containing a superfine polyester fiber is subjected to ground dyeing and the surface of said ground dyeing fabric is raised while the raised fabric is subsequently subjected to sublimation transfer printing in a plain dyeing fashion. CONSTITUTION:A fabric mainly containing a polyester fiber with monofilament fineness of 1 denier or less at the surface thereof is passed through, for example, a first process performing geound dyeing due to a batch dyeing method, a second process for raising the surface of the dyed fabric subjected to said ground dyeing, for example, by a card clothing raising method and a third process subjecting the raised surface of said raised fabric to sublimation transfer printing for 30-60sec in a plain dyeing fashion, for example, under such a condition that a temp. is about 180-210 deg.C and pressure is about 200g/cm<2> to prepare an objective suede texture fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a fabric that uses ultrafine fibers and has an appearance and feel more similar to natural suede.

Conventionally, suede-like fabrics have been produced using ultrafine fibers to produce fabrics such as two-knit woven fabrics and non-woven fabrics.

Generally, the method is to dye without TLK and then brush it, or to dye it plain after brushing, but the appearance is warm even if it is suede-like, and the appearance is cool like natural suede. There was nothing that looked like natural suede and had a feel that was close to that of natural suede.

The present invention was made in view of the current situation.

The purpose of the present invention is to provide a method for producing a fabric using ultrafine fibers that has an appearance and feel more similar to natural suede.

In order to achieve this object, the present invention has the following configuration.

That is, 1 the present invention includes a first step of background dyeing a fabric whose surface mainly contains polyester fibers with a single filament fineness of 1 denier or less, a second step of raising the surface of the fabric, and a second step of making the raised surface of the fabric plain. This is a method for producing a suede-like fabric, characterized by comprising a third step of sublimation transfer printing.

Below, nine aspects of the present invention will be explained in detail. - In the present invention, first, a fabric whose surface mainly contains polyester fibers having a single yarn fineness of 100 denier or less is ground-dyed. The fabric referred to in the present invention is a woven fabric.

Refers to knitted fabrics, non-woven fabrics, etc. In particular, polyester fiber is used in the present invention because it has excellent dimensional stability that other synthetic fibers do not have, and it is important to keep the single fiber fineness of the polyester fiber mainly contained on the surface of the fabric to be 1 denier or less. This is to make the feel of the raised naps on the Ω-raised surface similar to that of natural suede. Furthermore, as a fiber suitable for high-temperature sublimation transfer printing performed in the post-process of the present invention, a fabric containing polyester fiber is desirable.

Methods for background dyeing fabric include jet dyeing machine, wince dyeing machine,
The dyeing may be carried out by any of a batch dyeing method using K such as a Jigger dyeing machine, a continuous dyeing method such as a thermosol method, a high temperature high pressure steaming method, and a high temperature steaming method.

Before dyeing, relaxing, 111 training, setting, etc. may be performed as necessary. It is best to keep the density of the ground dyeing to a light to medium tone, and avoid extremely dark colors such as black and dark blue, as this will help produce a better surface effect in the plain tone sublimation transfer printing performed in the subsequent process. . Note that it is good to perform heat setting to remove wrinkles after dyeing, but since this tends to affect the napping properties, it is desirable to perform heat setting at as low a temperature as possible. The step of background dyeing the fabric is the first step.

Next, as a second step, the surface of the ground-dyed fabric is raised. The raising method may be one or a combination of needle cloth raising, emery raising, brush raising, and if necessary, shearing or heat setting may be performed, and treatment with a raising agent before raising the hair is also permissible. . Since polar aI fibers of 1 denier or less are used for raising, it is better to increase the number of times of raising under 9 weak raising conditions. The more times the hair is brushed, the less fluff will fall off from the brushed microfibers.

It is easy to increase the density of the brushed fluff, and it is also easy to create suede-like short fluff.

The fabric used in the present invention has ultrafine fibers on the surface of the fabric in order to improve the above-mentioned napping effect and to improve the suede-like feel, and the fabric has a structure that makes it easy for the napping needle to catch during the napping process. is desirable. For example, in the case of a woven fabric, it is most preferable to use a weft satin fabric with 3 or 5 layers of ultrafine fibers having K IrJ wefts.

The step of raising the surface of the ground dyed cloth is the second step in the method of the present invention.

Subsequently, in the third step of the present invention, the raised surface of the raised fabric is subjected to sublimation transfer printing in an almost plain tone. The third step is sublimation transfer printing into a plain color.

By creating a suede-like surface with a cooling sensation similar to that of natural suede, and by utilizing the high temperature and pressure during sublimation transfer printing.

The reason for this is to reduce the thickness of the fabric (11 layers) to increase the feel and make it more similar to natural suede. The plain tone here refers to the plain tone in which the wrinkled parts, such as the epidermis of cowhide, are not colored, and the areas other than the wrinkled parts are colored, and the colored parts. There is no problem with the method of the present invention even if there is a light or dark shade, but on the contrary, it is preferable in order to get closer to natural suede. However, it is preferable that the density of the hue of the solid color tone is the same as or more than the density of the background dyeing phase. To create a more luxurious tone, the hues of the sublimation transfer printing of the ground dyeing phase and solid color tone can be changed, for example, cream and beige, beige and brown, brown and dark brown, blue and green, light gray and dark gray.

Choosing a combination of the same hue, such as a combination of pink and red, will result in a calm tone. However, there are cases in which combinations other than the same hue, such as red and black, are interesting and highly fashionable. As the dye to be used, a durable disperse dye is most suitable from the viewpoint of practical handling of clothing. The conditions for transfer printing may be those commonly used for transfer printing, such as a temperature of about 180 to 210 DEG C. for 9 hours and 30 to 60 seconds, and a pressing pressure of about 200 g/lri. As the transfer printing machine to be used, a continuous method using one type of heating cylinder is suitable.

Another reason for using the sublimation transfer printing method, especially in the third step, is that the second step of napping loosens the fabric and gives it a bulky texture, giving it the cooling effect of a natural suede appearance. This is because it is necessary to press it with high heat to reduce the thickness and increase the weight, making it more similar to natural suede. In this way, the third step is the one that brings the appearance and feel closer to natural suede at the same time.

The above describes the first step of background dyeing a fabric containing polyester fibers with a single yarn fineness of 1 denier or less, the second step of raising the surface of the dyed fabric, and the sublimation transfer printing of the raised surface of the raised fabric to almost a plain color tone. This method of manufacturing suede-like fabric is characterized by comprising a third step of:

In addition, between the first and second steps, dyeing methods such as background dye overprinting can be used to create leopard, tiger, and snake patterns.

By adding a pattern such as a crocodile pattern, you can create a new fashionable look by combining it with a suede look.

However, between the second and third steps, a water-insoluble finishing resin such as urethane-based, silicone-based, or fluorine-based resin may be applied to adjust the texture.

Furthermore, after the third step, the color fastness is improved.

Softening the texture 1. Softening agents used to improve the dimensional stability and naturalize the fuzz on the suede-like surface by giving a washing and kneading effect using a liquid jet dyeing machine, etc., and for finishing the fabric.
A finishing treatment may be performed to add an antistatic agent, water repellent, etc.

Next, the method of the present invention will be explained with reference to Examples.

The method of the present invention is limited to 1. Many.

Example 1 A false twisted yarn of 75 denier 36 filaments of polyester was used as the warp, and a twin (20
A 5-ply double satin fabric (warp density: 164 twists/m) was woven using a weft of 5 wefts (warp density: 164 twists/m). Next, after scouring the regular Nori Lux, it was subjected to the first step of ground dyeing using a high-pressure jet dyeing machine based on the following dyeing conditions 1 and reduction washing conditions 1.

Dyeing conditions I Dianix Yellow U-8E 1.80%
owf Red U-8E 1.15 #
Blue U-SF 0.55 #
(Disperse dye manufactured by Mitsubishi Kasei Co., Ltd.) Ninoka Sun Salt LM-70,51/l (Leveling dye manufactured by Nicca Chemical Co., Ltd.) Formic acid 0
．． 1 ccμ warm box 135°C Time 30 minutes Reduction cleaning conditions 1 Bisnor P-6531/l (Reducing cleaning agent made by Hitachi Co., Ltd.) Sunmol PL O,511/
l (Non-ionic surfactant manufactured by Nicca Chemical Co., Ltd.) Temperature: 80'C Time: After dyeing for 20 minutes, dehydrate and dry while spreading the cloth.
Heat setting was performed at ℃ for 50 seconds. The fabric that completed this first step was ground-dyed in a medium brown color.

Next, the front surface was lightly raised 9 times and the back surface was lightly raised 3 times using a belt-type cloth raising machine. Finished cloth (1
30 crn). rIJ before brushing is 1
57 crn, width immediately after brushing is 124 pieces, I after setting
ll is 130α, the thickness is about 1wR, and the basis weight is 190
It was 1/cr/I. The raised fabric that has undergone the second step has an appearance similar to that of suede, but has a warm feeling, and has a bulky, thick texture and a fluffy texture.2.Objects of the present invention. It was still a long way from the suede style that was intended.

Next, using a 150cm+ width transfer paper with a cowhide-like pattern printed with a disperse dye in deep brown and almost plain, the surface of the dyed and raised fabric was transferred using a continuous transfer machine using a continuous heating cylinder. Sublimation transfer printing was performed under the following conditions.

Mechanical conditions for sublimation transfer printing Temperature: 210°C Time: 40 seconds Pressure: approx. 2001/ca The surface appearance of the raised fabric that has completed this third step is a dark brown color with a plain cowhide-like pattern. However, the wrinkled area was a medium brown color of the ground dye. In addition, the surface is almost flat due to being pressurized at high temperatures, but because it has a plain cowhide-like pattern, the raised fluff is pressed down and the appearance is similar to that of natural suede. It has a cooling sensation, and the thickness is 0.6 mm, and the thickness is 40% before and after the third step, so it has a solid feel. It was a suede rA product that resembled natural suede in some respects. Furthermore, the ground color and light brushing on the back side gave it an even more luxurious feel and good texture.

Patent applicant: Unitika Co., Ltd.

Claims (1)

[Claims] (1) A first step of background dyeing a fabric that mainly contains polyester fibers with a single yarn fineness of 1 denier or less on the surface of the fabric,
A second step of raising the surface of the fabric. 719. A method for producing a suede-like fabric, comprising a third step of sublimation transfer printing on the raised surface of the fabric in a plain color tone.