JPS62125075A - Crease imparting finish of cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the formation of an uneven wrinkle pattern on a Ta fiber fabric, and more specifically, the present invention relates to the formation of an uneven wrinkle pattern on a Ta fiber fabric, and more specifically, a fiber fabric whose essential constituent fibers are polyurethane fibers, preferably dyed with a random pattern. The invention relates to a special processing method that forms uneven wrinkles.

BACKGROUND ART Recently, fashionable clothing such as blouses, jumpers, coats, etc., which have a natural appearance on the entire surface of the clothing, as if they were taken out of the washing machine, have become popular.

Conventional methods for imparting such an uneven wrinkle pattern to relatively thin knitted fabrics include (1) a method of treating the fabric in a rope-like manner with a wince dyeing machine or a jet dyeing machine; ) A method in which the fabric is passed in the form of a rope between two pressurized rolls; (3) A method in which the fabric is passed in the form of a rope through a pipe with a diameter that increases the filling rate while being treated with hot water or steam. (4) There are methods such as treating the fabric with hot water after tying it in a rope shape or stuffing it into a bag, and there is a method where the fabric is forcibly wrinkled and finished while maintaining this form. It has been adopted.

However, it is very difficult to wrinkle thick knitted fabrics or fabrics made of polyurethane elastic fibers cross-woven by the above-mentioned method.

On the other hand, conventional methods for imparting patterns to fabrics include (al) a method in which a pattern is made to appear on a fabric using a knitted fabric structure; A method of forming patterns based on temperature and pressure conditions, (el) printing a fiber swelling agent on the fabric using a printing method,
After that, there are methods such as post-processing to create an uneven pattern on the surface, and in particular, 1. Methods of ) and tb); It is also possible to impart a certain desired pattern to a relatively thick fabric or a fabric made by mixing and weaving elastic fibers such as polyurethane fibers.

However, in either method, the pattern applied to the fabric is repeated at regular intervals, and repeatability and regularity in shading due to depth differences are inevitably inevitable, resulting in discontinuous, irregular, and natural uneven cracks. There is a major drawback in that it is not possible to apply a textured pattern, and there has been a demand for the development of a processing method that can wrinkle more effectively than before.

The present inventors aimed to develop a new processing method that effectively imparts natural wrinkles with excellent durability to such thick knitted fabrics or fabrics made of polyurethane elastic TA fibers. As a result of extensive research, we have arrived at the present invention, which has remarkable effects.

That is, the present invention preferably applies a sublimable dye in advance on a fiber fabric having urethane yarn as an essential constituent fiber, and then
A fabric patterning method is provided by stacking thermal transfer papers on which random wrinkles are formed and thermally transferring them under pressure.

The fabrics used in the method of the present invention include synthetic fibers such as polyamide, polyester, cationically dyeable polyester, and acrylic, and/or fabrics made by mixing and weaving cotton blend yarns with the TA fibers and polyurethane yarns, and fabrics made by mixing polyurethane yarns with polyurethane yarns. Preferred are fabrics knitted and woven with yarn covered with yarn, and fabrics with a cross-section of 18 IPa from this yarn and the synthetic fibers, etc.
Of course, it is not limited to these. The proportion of polyurethane in the entire fabric constituent fibers is 10% or more, especially 10%.
~30% is preferred.

In addition, the thickness of the fabric is preferably about 0.5 to 1.0 mm in order to form natural uneven wrinkles.

It should be noted that although the fabric used in the present invention is mainly intended for thick fabrics, it is of course not limited thereto and can be applied to any suitable thin fabric.

The transfer paper used in the method of the present invention may be made of a material normally used for dry transfer printing of fabrics, but it is possible to apply a sublimation dye to the transfer paper, form random wrinkles on the entire surface of the transfer paper, In order to perform transfer work onto fabrics and provide effective wrinkles, it is preferable to use paper with a weight of 45 g/m' or more.

As the sublimable dye applied to the transfer paper, disperse dyes, reactive disperse dyes, and cationic dyes are preferably used.

Next, dyeing the fabric and adding wrinkles using transfer paper are usually done by
Equipment and conditions equivalent to those used for dry transfer printing of fabrics can be applied. In addition, the conditions for this transfer process are that the temperature of the heating cylinder (approximately 100 to 200 cm in diameter) is 1.
A temperature of 50 to 220°C, a pressure of 2 to 4 kg/linear pressure, and a processing speed of 5 to 10 Il/ff111 are preferably used. Under these conditions, each part of the fabric is heated with the transfer paper for 20 to 6 seconds.
It will be brought into contact with heat and pressure for about 0 seconds.

Note that if wrinkles are applied to a transfer paper that has not been coated with a sublimable dye and used for transfer, only the wrinkles can be applied to the fabric.Needless to say, this is also included in the present invention, but it is possible to apply wrinkles to the fabric. It is less effective than applying it. To create transfer paper with natural wrinkles, take a transfer paper with a size of approximately lm' and rub it by hand to form random wrinkles, then spread it out again until the wrinkles remain, or roll the transfer paper into a long sheet. It is preferable to use the same method as it is.

The reason why the method of the present invention imparts a discontinuous, irregular, and natural textured pattern is due to the presence of polyurethane in the fabric, the dry transfer conditions, and the wrinkles in the transfer paper formed by hand-rolling. This is the result of the synergistic interaction of the following. Next, the present invention will be explained with reference to Examples.

Example 1 A 0.6 mm thick 2-way tricot tonneau fabric made by crossing 40 d polyurethane yarn with 50 d/24 filament polyester (cross knitting ratio +6/84) was polished and finished in a conventional manner. Next, a transfer paper coated with a red sublimable disperse dye on the entire surface of the paper was hand-rubbed to form sharp, random wrinkles, and then spread and smoothed out to the extent that the wrinkles remained.

The fabric obtained by the above method and the transfer paper were stacked together in a cylinder at a temperature of 190°C, a pressure of 3 kg/linear pressure, and a processing speed of 6 m/
Thermal transfer was carried out using a transfer printing machine normally used for transfer printing of fabrics under conditions of 10 min.

The thus obtained tricot half fabric was dyed in infrared shading according to the wrinkle pattern, and at the same time was given natural uneven wrinkles, giving a product with a three-dimensional effect.

Example 2 40d polyurethane yarn and 50d/18 filament cationic dyeable polyester were inter-knitted (inter-knitting ratio 15/
85) The 2-way tricot half fabric with a thickness of 0.5 mm was dyed blue using a conventional method.

Next, sharp and random wrinkles were formed in advance on the entire surface of the transfer paper by hand rolling, and then the wrinkles were spread out to the extent that they remained.

The fabric obtained by the above method and the transfer paper were superimposed, and the cylinder temperature was 200°C, the pressure was 3 kg/linear pressure, and the processing speed was 5 m.
Thermal transfer was performed using the same apparatus as shown in Example 1 under the conditions of /l1 inch.

The thus obtained tricot half fabric had natural uneven wrinkles in accordance with the wrinkle pattern of the transfer paper, resulting in a product with a three-dimensional effect.

The durability of wrinkles and changes in strength due to washing were measured for the products obtained in the above examples. The results are shown in the table below.

Table 1: Measurement conditions: As is clear from the table above, the processed fabric obtained by the method of the present invention has excellent properties as the wrinkles imparted by the transfer do not easily disappear upon washing, and there is no decrease in the strength of the fabric. It was found that it had the following.

Claims (1)

[Claims] A method for wrinkling a fabric, which is characterized by overlapping a fiber fabric having polyurethane thread as an essential constituent fiber and a transfer paper on which random uneven wrinkles have been formed in advance, and thermally transferring this under pressure.