JPS59125970A - Temorary curing of fabric - 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 provides a fabric with an aqueous solution of an inorganic compound that does not decompose at room temperature, is a colorless or white crystal, has low hygroscopicity, is not efflorescent or deliquescent, and is stable in an aqueous solution. It relates to a method for temporarily curing a fabric, which is characterized in that the fabric is impregnated in a fabric and then dried.

In general, flexible fabrics are used as linings for clothing, and in recent years, thin, flexible fabrics have been increasingly used especially in women's outerwear. In addition, highly elastic woven and knitted fabrics are increasingly being used not only for underwear but also for outer clothing. It is not easy to cut and sew such fabrics, and it is particularly difficult to make industrially stable sewn products.In recent years, this has become a problem in the garment processing industry as the number of skilled workers has decreased.

Conventionally, when cutting and sewing such fabrics, there have been methods of gluing using starches and starch derivatives, polyvinyl alcohol, etc., and sublimation of paradichlorobenzene, naphthalene, benzoic acid, etc. Attempts have been made to use organic compounds with adhesive properties, but methods using glue are difficult to remove after sewing, and
There is a drawback that starch remains on sewn products, impairing the texture, and the organic compound of Balajichlorobenzenato scatters or sublimates during processing, cutting, sewing, and removal of fabrics, resulting in a characteristic irritating odor. It is difficult to use it in actual work where a large amount of fabric is handled for a long time because it emits a lot of irritants, so a prototype machine using benzoic acid was created and a practical test was conducted using it, but although it was recognized that it has good workability, The biggest drawback is the generation of odor, making it impractical for practical use.

Under these circumstances, as a result of extensive research into a method for obtaining practical temporary curing that does not have the above-mentioned drawbacks, the present invention has been arrived at. In other words, if a fabric contains an aqueous solution of an inorganic compound, which is a colorless or white crystal that does not decompose at room temperature, has low hygroscopicity, is not efflorescent or deliquescent, and is stable in aqueous solution, and is dried, it can be used for practical purposes. The fabric was cured with a strong odor and no irritating odor.

This shredded inorganic compound can be removed after sewing by a steam press or a hot press using a damp cloth, making it suitable for practical use.

In the present invention, since an inorganic compound is used as a curing agent, it is hygienically safer to handle than an organic compound using an organic solvent, and there is no risk of ignition or explosion during dry curing, and there is no weather pollution. Since water is used as a solvent, it is cheaper than organic solvents.

The inorganic compound used in the present invention is a stable crystal with low hygroscopicity at room temperature and no efflorescence or deliquescence, in order to maintain stable hardness after being incorporated into the fabric, and to maintain stable hardness after being incorporated into the fabric. In order to prevent this, it is necessary that the crystals be colorless or white. For safe storage and use, it is preferable that the toxicity disappears, and that it does not decompose with moisture and heat during drying or removal, producing no harmful residue or odor.

Examples of inorganic compounds with such properties include the following.

Acidic ammonium sulfate, aluminum sulfate, aluminum ammonium sulfate, aluminum potassium sulfate, aluminum sodium sulfate, potassium sulfate, magnesium potassium sulfate, amorphous sodium sulfite, amorphous potassium sulfite, acidic potassium sulfate, acidic potassium fluoride, potassium iodide, potassium nitrate, Sodium chloride, sodium gold chloride, sodium bromate, sodium acid phosphate, sodium phosphate, sodium silicate, sodium stannate, sodium tungstate, sodium selenite, sodium selenate, ammonium acid phosphate, barium oxide, beryllium sulfate, hydroxyl hydrochloride Amines These inorganic compounds are used by dissolving them in water or hot water.
The concentration of the solution and the amount applied to the fabric will vary depending on the target hardness and object, and will vary depending on the equipment used to apply it.
It should be selected as appropriate depending on the desired hardness of the target fabric, and should be determined in relation to solubility.

The method for incorporating it into the fabric may be simply by spraying, or any existing method such as dipping may be used.

Natural air drying is the most preferable drying method after impregnating the fabric with an aqueous solution of an inorganic compound, but existing heating drying equipment may be used in terms of work efficiency. However, if it is dried too quickly at too high a temperature, the crystals will become fine.

The present invention will be specifically illustrated by examples.

Example 1 Aluminum sulfate (Reagent 1st grade AI2 (804) 3.1
8■1□0) was prepared, and this was sprayed onto 100% Benvelub lining (chemical-free Penflora AK800) and dried in a breeze at 60°C. . Separately, benzoic acid (Test I 1 grade) was applied to the same type of fabric in 10% ethyl alcohol and dried in an air stream at room temperature. After drying, the adhesion amount of the chemicals and the hardness () - dollar rape length (unit: fi) were measured. Lightly squeeze the P paper that has been wetted with the water in a dehydrator, sandwich it between cloths, and steam it with a flat iron press for 10 seconds at 100 ml.
The 10 second 0C press process was repeated twice to remove chemicals, and the amount of residual chemicals and hardness were measured.

The hardness of the original cloth (heart loop length) is 79.8 degrees. The amount of deposited material and the amount of residual material are expressed as % by weight of the fiber.

The results show that although aluminum sulfate had a smaller deposit amount than benzoic acid, it obtained a hardness equal to or higher than that of benzoic acid, and the amount remaining after removing the scum was small, and the hardness hardly changed. Fabrics cured with both aluminum sulfate and benzoic acid had good shape stability, so they were easy to handle and could be cut and sewn smoothly. The texture after removal was as good as that of the original fabric, and the change in hue was extremely slight and did not cause any practical problems. Moreover, when aluminum sulfate was used, there was no odor at all during anti-fouling and removal operations, and there was no chemical scattering during handling, cutting, or sewing.

Example 2゜Potassium aluminum sulfate, reagent 1st grade Al
10% of 2S04・24 I(20) to 2(SO4)3
The same operation was carried out on the same Benvelb backing as in Example 1 using an aqueous solution. The amount of deposition after adhesion resistance, the hardness, the amount of residue after removal, and the hardness were as follows.

Although the hardness after adhesion resistance was slightly inferior to that of aluminum sulfate, the morphological stability was almost unchanged and it could be handled smoothly as well. The texture after removal was similar to that of the original fabric, and the change in hue was also very slight. There was no odor at all during the removal operation of the shredded clothes, and no chemicals were scattered during handling.

Example 3 The same operation as in Example 1 was carried out on a polyester fabric (Toshijilook #8700 Silsophy Parel). The amount of deposition, hardness, amount remaining after removal, and hardness were as follows.

The hardness (heart loop length) of the original fabric was 79.0 mm.

The results are the same as in Example 1, and the shape stability, ease of handling, texture after removal, hue change, odor, and chemical scattering of the cured fabric are also the same as in Example 1. You can also use it without any problem.

Example 4 Similar to Example 2, a 10% water bath solution of potash light bread was used and the same operations as in Example 3 were carried out.The results were exactly the same as those of Example 1 and Example 2, and the handling was The ease of processing was also the same as in Example 3.

Patent Applicant: Nippon Kayaku Co., Ltd. Procedural Amendment December 13, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 1, Indication of the Case 1982 Patent Application No. 226730 2, Name of the Invention Temporary Curing Method for Fabrics 3, Amendment Relationship with the case of a person who does No. 6, No increase in the number of inventions due to the amendment 7, Detailed explanation of the invention in the specification subject to the amendment 8, Contents of the amendment As shown in the attached sheet Contents of the amendment (1) Page 5, line 7 of the description Insert the following words after "zylamine":

"Sodium tripolyphosphate, amorphous sodium phosphate,
Ammonium sulfate, potassium sulfate, ammonium magnesium sulfate, barium nitrite, orthoboric acid, barium nitrate. ” (2) Add the following sentence after “was.” on the second line of page 10.

[Example 5] Prepare an aqueous solution of ammonium sulfate and spray it onto 400% polyester georgette.
It was dried in a breeze at 0°C. Thereafter, ammonium sulfate was removed by the same method as in Example 1.

The amount of ammonium sulfate deposited and the hardness of the cloth were measured after drying in a breeze and after removal treatment, and the following results were obtained.

The hardness (heart loop length) of the original fabric was 93.0 mm.

The curing power of ammonium sulfate is strong, and the polyether georgette treated (cured) with ammonium sulfate as described above is easy to handle, such as sewing, and no scattering of ammonium sulfate or generation of irritating odor was observed during handling of the cured fabric. lhi.

that's all

Claims (1)

[Claims] (1) It does not decompose at room temperature and is colorless to white crystal,
A method for temporarily curing a fabric, which is characterized by containing an aqueous solution of an inorganic compound that has low hygroscopicity, no efflorescence or deliquescent properties, and is stable in an aqueous solution, and then drying the fabric.