JPH04257366A - Improvement in handing feeling 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]

0001

[Industrial Application Field] The present invention relates to a method for improving the texture of fabrics, and more specifically, the present invention relates to a method for improving the texture of fabrics, and more specifically, the present invention relates to a method for improving the texture of fabrics, and more specifically, the present invention relates to a method for improving the texture of fabrics, and more specifically, to improve the texture of fabrics. The present invention relates to a method for improving the texture of the product.

0002

BACKGROUND OF THE INVENTION Many mechanical processing techniques for improving the feel of fabrics have been known in the textile processing industry, some of which are currently in commercial use. For example, as seen in Japanese Patent Publication No. 42-13419, a method using a compressing and shrinking device (so-called sanforizing machine) consisting of a actively rotating thermal cylinder and an endless rubber belt rotating in pressure contact with the outer periphery of the thermal cylinder; 62
As seen in Japanese Utility Model Publication No. 69878 and Japanese Utility Model Application Publication No. 62-170794, there is a method in which the front and back sides of the fabric are sequentially exposed to mechanical impact using an impact means, or rope-shaped fabrics are formed using compressed air generated by a turbine or compressor. There is a method of applying an impact to the fabric and blowing it against the wire mesh, causing it to crash.

0003

[Problems to be Solved by the Invention] However, with the currently known mechanical processing techniques for fabrics, the effects achieved are not worth the additional processing steps; On the other hand, there are techniques that have such a drastic effect that they unduly weaken other functions, such as damaging the surface of the fibers or unduly weakening the strength of the fabric. Furthermore, these mechanical processing techniques alone cannot provide a silk-like texture that is soft and has excellent volume, drapability, and resilience.

The present invention has been made in view of the above-mentioned problems, and provides a silk-like fabric that is soft and has excellent volume, drapability, and repellency without deteriorating the surface and strength characteristics of the fabric. The purpose is to provide a method for improving the texture of the product.

[0005]

[Means for Solving the Problems] The above-mentioned object is a process of applying a treatment solution consisting of end group-modified polysiloxane and methyl hydrogen polysiloxane to a fabric, and then heat-treating the fabric, and placing the heat-treated fabric in a Bencherry tube. The fabric is transferred by compressed air and crushed by being continuously hit against a wire mesh, and between the heat cylinder that actively rotates the crushed fabric and the endless rubber belt that rotates while being in pressure contact with the outer periphery. This is achieved by a method for improving the feel of a fabric, which is characterized by comprising the steps of introducing and compressing the fabric.

The present invention will be explained in detail below.

The fabric referred to in the present invention refers to woven fabrics, knitted fabrics, non-woven fabrics, etc., including natural fibers such as cotton, linen, and wool, recycled fibers such as rayon and cupro, and synthetic fibers such as nylon, polyester, and acrylic. Examples include mixed products of fibers and other fibers.

The terminal group-modified polysiloxane used in the present invention has the following structural formula:

[Chemical 1] (However, X: -OH-, -CH=CH2, or -CH3
), and commercially available Lighttex 900 (trademark: Kyoeisha Yushi Kagaku Kogyo Co., Ltd.), Solsoft WE (trademark: Hoechst Japan Co., Ltd.), etc. can be used.

[0009] This terminal group-modified polysiloxane has a solid content of 0.1 to 5% by weight, preferably 0.1% to 5% by weight based on the weight of the fabric.
．． Use 2-3% by weight. If it is less than 0.1% by weight, no repellency will be obtained, and if it is more than 5% by weight, it will give a slimy feeling.

The methyl hydrogen polysiloxane used in the present invention has the following structural formula:

[Chemical formula 2], and the commercially available Litetex S-
011 (trademark: Kyoeisha Yushi Kagaku Kogyo Co., Ltd.), Drypon 600 (trademark: NICCA CHEMICAL CO., LTD.) and DIC
SILICONE conc-SA (trademark: Dainippon Ink and Chemicals Co., Ltd.) and the like can be used.

[0011] This methyl hydrogen polysiloxane has a solid content of 0.05 to 5% by weight based on the weight of the fabric;
Preferably it is used in an amount of 0.1 to 4% by weight. If the amount is less than 0.05% by weight, no repellency will be obtained, while if it is 5% by weight or more, the slimy feeling will become large.

It goes without saying that various auxiliaries may be added to the processing solution, but in particular latent acidic catalysts, such as ammonium chloride, ammonium sulfate, and phosphorus, which are neutral in the processing bath but become acidic during heating (curing). Add ammonium salts such as diammonium oxyhydrogen, amine salts such as 2-amino-2-methylpropanol and hydrochloride, metal salts such as magnesium chloride, zinc nitrate, zinc chloride, zinc fluoride, and magnesium fluoride. It is preferable to
The amount to be added is preferably 10 to 50% by weight, more preferably 20 to 40% by weight, based on the total amount of methylhydrogenpolysiloxane.

Next, an embodiment of the processing method for applying the above-mentioned processing agent will be described. Water is added to a predetermined amount of end group-modified polysiloxane and methylhydrogen polysiloxane to prepare a processing solution, and this is applied using the padding method. and then dried at 100-120°C for 2-3 minutes,
Heat treatment is performed at 40-160°C for 3-5 minutes.

It goes without saying that the method of applying the treatment liquid is not limited to the padding method, and may be applied by a spray method, a coating method, a dipping-dehydration method, or the like.

Next, a method of crushing the heat-treated fabric will be explained. The crushing machine used in the method of the present invention is a Venturi tube (1
), a turbine (2) that sends compressed air to the venturi tube (1), a wire mesh (3) provided on the outlet side of the venturi tube (1), and a
) A pair of throttle cylinders (4), (4
'), a scraper (6) that stores the fabric (5), and a steam outlet (7) that blows out steam. A rope-like fabric (5) is introduced between 4) and (4'), and then this fabric is introduced into the venturi tube (1), and the fabric (5) is
) to improve the feel of the fabric by continuously crushing it against the wire mesh (3). Note that (8) is a guide roller.

[0016] Then, in order to repeat the above-mentioned crushing operation, the fabric (5) is stored in the scrape (6) and sewn into an endless shape. Also, during processing, the fabric speed should be increased to 300.
~1000m/min, processing temperature 40~120℃, fabric moisture content 0~70%, number of crushing 30~3
00 times, depending on the fiber material, steaming from the steam outlet (7) changes the texture of the fabric (5) to a soft drape when it is subjected to intense kneading and shrinkage by the crushing machine. It can be made into something.

Next, a method of compressing and shrinking the crushed fabric will be explained. The compression shrink machine used in the method of the present invention is shown in Fig. 2 (the shrink machine shown in Japanese Patent Publication No. 42-13419 is one example), and has a heat cylinder (11) that actively rotates, and an endless rotating cylinder that presses against the outer circumference of the heat cylinder (11). Using a type of rubber belt (12), the fabric (13) is introduced so as to be in contact with the extension part (a) of the endless rubber belt (12), and the fabric (13) is placed in a heat cylinder (
When passing between the rubber belt (11) and the endless rubber belt (12), it bends in an S-shape at the part (b), so the rubber belt (12)
The surface of 2) becomes compressed, and the fabric (1
Fabric (13) is compressed and shrinks.
) to improve its texture. Note that (14) is a guide roller, (15
) is a roller around which the endless belt (12) is wound. In addition, a steam chamber is provided in front of the compressor to add moisture to the fabric, resulting in an even softer texture.

[0018]

[Operations] Since the present invention is constructed as described above, it has the following functions.

Since terminal group-modified polysiloxane and methylhydrogenpolysiloxane are used, the methylhydrogenpolysiloxane acts as a crosslinking agent for the terminal group-modified polysiloxane, and a three-dimensional network structure is formed on the fiber surface by heat treatment. This makes it possible to create a fabric with good repulsion.

[0020] By passing the fabric thus obtained through a crushing process, a kneading effect and a shrinking effect are exerted, and the fabric can be made soft and with good drapability.

[0021] Furthermore, by subjecting the fabric thus obtained to a compression and shrinkage process, a kneading effect, a press effect, and a shrinkage effect are exerted, and the fabric can be made soft, voluminous, and with good drape properties.

[0022]

[Example] The following is a detailed explanation based on an example.

Example 1 Cotton plain fabric, warp and weft count 100 double yarn, density 151 warp/weft
74.5/inch by the usual method,
Scouring, bleaching, mercerization, and dyeing were performed.

The plain woven fabric was treated with 50 g/l of Litetex 900 (trademark, Kyoeisha Yushi Kagaku Kogyo Co., Ltd., solid content 30%) as an end group-modified polysiloxane, and Litetex S-0 as a methylhydrogen polysiloxane.
11 (trademark, Kyoeisha Yushigaku Kogyo Co., Ltd., solid content 58
．． 5%) 20g/l, Litetex F as catalyst
-12 (trademark, Kyoeisha Yushi Kagaku Kogyo Co., Ltd., active ingredient 17%, organic metal salt type) 20g/l, a treatment liquid consisting of Finetex NRW-3 (trademark, Dainippon Ink Co., Ltd.) 2g/l as a penetrant. After squeezing the liquid to a pickup rate of 70%, it was dried at 100°C for 2 minutes and then heat-treated at 150°C for 3 minutes.

Subsequently, it was introduced into a crushing machine shown in FIG. At the time of introduction, the fabric speed was 850 m/min, the treatment temperature was 100°C, the moisture content was 30%, and the number of crushing was 70.
Adjusted so that it is twice.

After being extracted from the crushing machine, it was introduced into a compression shrinking machine, which consists of a actively rotating heat cylinder and an endless rubber belt that rotates in pressure contact with the outer periphery of the heat cylinder, as shown in Japanese Patent Publication No. 42-13419. 1 product was obtained. In addition, upon introduction, steaming was performed by applying steam to the fabric.

Comparative Example 1 The same dyed fabric as in Example 1 was treated with 30 g/l of Acrinar W320 (trademark, Takamatsu Yushi Co., Ltd.) as a softener.
The pick-up rate is 70%.
After squeezing the liquid, it was dried at 100° C. for 2 minutes to obtain a product of Comparative Example 1.

Comparative Example 2 The product of Comparative Example 1 was passed through the same crushing process and compressive contraction process as in Example 1 to obtain a product of Comparative Example 2.

Comparative Example 3 In the same process as in Example 1, the same processing as in Example 1 was carried out except that the crushing process was not passed.
A product of Comparative Example 3 was obtained.

Comparative Example 4 A product of Comparative Example 4 was obtained by carrying out the same processing as in Example 1 except that the compression shrinkage step was not passed.

Comparative Example 5 Silk plain fabric, warp and weft count 140 double yarn, density warp 122.2
A piece of book/inch, weft 105/inch was scoured and dyed by a conventional method.

The plain fabric was treated with Vicron L-8 as a softener.
(Trademark, Ipposha Yushi Co., Ltd.) After passing through a processing solution consisting of 30 g/l and squeezing to a pickup rate of 70%, 1
The product of Comparative Example 5 was obtained by drying at 00° C. for 2 minutes.

Table 1 shows the texture and visual appearance of the products obtained in Example 1 and Comparative Examples 1 to 5. The texture is determined by KES F-II texture evaluation system KN-201.
- This is a value measured using the LDY thin fabric evaluation formula for women's outerwear.

[0034]

[Table 1]

[0035]

[Table 2]

As is clear from Tables 1 and 2, it can be seen that the products obtained in the Examples of the present invention have a silk-like texture.

[0037]

[Effects of the Invention] As detailed above, the method of the present invention produces an unexpected synergistic effect by combining the three steps, and produces fabrics with improved texture, softness, volume, drapability, and resilience. is obtained, and is extremely useful for casual use.

[0038]

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing a crushing machine used to carry out the method of the present invention.

FIG. 2 is a schematic side view showing the main parts of a compression contraction machine used to carry out the method of the present invention.

[Explanation of symbols]

1 Venturi tube 2 Turbine 3. Wire mesh 4,4′ squeeze cylinder 5. Fabric 6 Scree 7 Steam outlet 8 Guide roller 11 Heat cylinder 12 Endless rubber belt 13 Fabric 14 Guide roller 15 Roller

Claims (1)

[Claims] 1. A step of applying a treatment liquid consisting of end group-modified polysiloxane and methyl hydrogen polysiloxane to a fabric, and then heat-treating the fabric, introducing the heat-treated fabric into a Bencherry tube, and blowing the fabric with compressed air. The crushed fabric is transferred between a heat cylinder that actively rotates and an endless rubber belt that rotates in pressure contact with the outer periphery of the crushed fabric, and is compressed and contracted. A method for improving the texture of a fabric, comprising: