JP3268358B2 - Method for stabilizing form of cellulosic fiber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a cellulosic fiber, and more particularly, to a method for improving the morphological stability of a cellulosic fiber, such as shrinkage resistance and wrinkle resistance, while minimizing deterioration in tear strength and hand. Related to processing method.

[0002]

2. Description of the Related Art Conventionally, cellulosic fibers have anti-wrinkle properties.
Various processing methods have been studied in order to impart form stability such as shrink resistance. As such a form stabilization processing method, a method in which a cloth to be processed subjected to press processing is treated with liquid ammonia, a resin processing material such as a formaldehyde resin is caused to act, and the cloth to be processed is heat-treated. Are known.

[0003]

In the conventional form stabilization processing, the cloth to be treated is pressed and processed in an atmosphere mainly containing formaldehyde gas, so that the formalin component is contained in the treated cloth. There is a problem that it may remain and adversely affect the human body.

Further, in the conventional form stabilization processing, since liquid ammonia is used, the setup change is troublesome and suitable for processing a large amount at a time. There was a problem that it was not suitable for doing.

[0005] Furthermore, since the conventional one is processed by the action of a formalin-based resin, if wrinkles and the like are present during the formalin processing, the form is stabilized in the presence of the wrinkles. For this reason, before processing with liquid ammonia, the to-be-processed material must be press-processed, and there was also a problem that the to-be-processed material was limited to the garment after sewing.

The present invention has been made in view of such a point, and it is an object of the present invention to provide a form stabilization processing of a cellulosic fiber which can be processed in a small quantity and a large variety of garments and fabrics after sewing. I do.

[0007]

In order to achieve the above-mentioned object, the present invention provides a method for treating a cellulosic fiber fabric or a sewn fiber product with ammonia gas, exhausting the ammonia gas, and then containing a formalin component. The resin-processed fabric or the sewn fiber product is dried and then pressed, and the press-processed fabric or the sewn fiber product is subjected to a heat treatment. And

[0008]

According to the present invention, first, ammonia gas is applied to impart elasticity to the cellulose fibers to increase the pressure resistance against external pressure which causes wrinkles and shrinkage, and then contains no formalin component. After the resin is worked and processed, the resin is pressed, and then subjected to heat treatment, whereby the molecules of the cellulose fibers are cross-linked. And although the fabric strength is reduced in the resin processing, the fabric strength is improved in advance by the ammonia processing, so that the fabric strength as a whole can be maintained at a high level.

[0009]

FIG. 1 is a block diagram showing a procedure for carrying out the present invention, and FIG. 2 shows an example of an apparatus for carrying out the present invention. According to the present invention, a textile product to be processed (hereinafter, simply referred to as a textile product) such as a sewn clothing product or a raw material is put into a drum-type processing box (1) that rotates around a horizontal axis, and the processing box (1) The ammonia gas from the ammonia gas storage container (2) is introduced into the processing box (1) while the drum is rotated, and the nitrogen gas is separated into air by a nitrogen generator such as a PSA device (3) or a nitrogen separation membrane device. Is introduced into the processing box (1) to cause a predetermined concentration of ammonia gas to act on the textile. After treating the textile with ammonia gas for a certain period of time, the inside of the treatment box (1) is purged with nitrogen gas, and the purged ammonia gas is neutralized in the neutralization device (4).
And neutralizes the discharged ammonia gas with the neutralizing device (4).

After the neutralization treatment is completed, a mixed processing liquid such as a resin processing agent containing no formalin component and a reactant is poured into the processing box (1), and the drum is rotated for a predetermined time so that the non-formalin state is obtained. Apply resin processing. At this time, the textile product repeatedly inverts inside the drum as the drum rotates, so that the textile product comes into uniform contact with the processing liquid.

When the resin processing with the mixed processing solution is completed, the resin product is dehydrated and dried, and the fiber product is taken out from the processing box (1). The removed fiber product is pressed to correct wrinkles and habits generated in the processing steps so far. At this stage, since the cellulose fiber molecules of the fiber product are not cross-linked, wrinkles and habits generated in the previous process are removed by press working, and the desired form is given to the fiber product by this press working.

If the textile product to be processed is a raw material, after pressing, the procedure goes to cutting, sewing, heating, washing and drying. On the other hand, if the textile product to be treated is a product that has been sewn, after heating, washing and drying are performed to remove extraneous resin processing agents, dust, and the like that have adhered.

Heating after pressing is performed in a predetermined shape (form).
This is for baking the shaped fiber product in a hot atmosphere at a predetermined temperature (for example, 160 ° C.) to crosslink cellulose fiber molecules of the fiber product.

In the form stabilization processing method of the present invention employing the above-described processing procedure, resin processing using a resin containing no formalin component is performed after processing with ammonia gas. The strength of the dough can be improved by the treatment, and the degree of decrease in the dough strength, which is reduced by the resin processing, can be reduced. Further, since the processing before resin processing is performed with ammonia gas, the setup change can be easily performed unlike the processing using liquid ammonia. As a result, it is possible to easily carry out the processing of small quantities and many types.

FIG. 3 shows the anti-wrinkling property when various fabrics were treated with ammonia gas. The fabrics used were a water-repellent cotton fabric, a brushed cotton fabric, a thick cotton fabric, It is a cotton cloth of a shirting cloth or a medium-thick cotton cloth, and is hardly wrinkled when untreated and when treated with ammonia gas, and is subjected to a monsanto method. As can be seen from FIG. 3, it can be seen that those treated with ammonia gas are more likely to wrinkle than those without treatment.

FIG. 4 is a diagram showing a washing operation performed according to the JIS 103 method.
Indicate the degree of shrinkage after repeated times, the used fabric is a water-repellent cotton fabric, a brushed cotton fabric,
Thick cotton cloth, shirt cloth cotton cloth, and medium-weight cotton cloth. It can be seen that those treated with ammonia gas tend to have better shrink resistance as a whole than untreated ones.

FIG. 5 shows that after treatment with ammonia gas,
The result of a tear strength test in the case of performing resin processing is shown. The cloth used was a water-repellent cotton cloth, a brushed cotton cloth, a thick cotton cloth, a shirt cloth, and a medium-thick cotton cloth. Here, the resin vertical rate indicates how much the tear strength has changed due to the resin processing as compared to the untreated case, and the ammonia gas processing vertical rate refers to the degree of the tear strength compared to the untreated state due to the ammonia gas processing. Is changed. The recovery rate indicates the degree of tear strength relative to the untreated tear strength when resin processing is performed after ammonia gas processing. As a result, when the resin processing is performed after the ammonia gas processing is performed, the tear strength is equal to or slightly improved with respect to the untreated state.

FIG. 6 shows the degree of shrinkage when resin processing is performed after ammonia gas processing.
Washing was repeated 5 times according to the JIS103 method. As a result, it is understood that when resin processing is performed in addition to ammonia gas processing, shrink resistance is improved.

[0019]

According to the form stabilization processing method of the present invention, since the resin processing using a resin containing no formalin component is performed after the processing with the ammonia gas gas, there is no influence of the residual formalin and the ammonia gas is used. Can improve the fabric strength and reduce the degree of fabric strength decrease that is reduced by resin processing.

Further, since the processing before resin processing is performed with ammonia gas, unlike the apparatus using liquid ammonia, the entire apparatus can be downsized.
Changeover can be easily performed. As a result, it is possible to easily carry out the processing of small quantities and many kinds.

Since a resin containing no formalin component is used, the shape and form of the treated fiber product and the supporting posture at the time of processing the resin may be irrelevant. As a result, the same process can be performed on both the sewn product and the raw material.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a procedure for implementing the present invention.

FIG. 2 is a configuration diagram of an apparatus for implementing the present invention.

FIG. 3 is a view showing wrinkle resistance when various fabrics are treated with ammonia gas.

FIG. 4 is a diagram showing the degree of shrinkage after washing the ammonia gas-treated one using a detergent five times.

FIG. 5 is a diagram showing the results of a tear strength test in the case where resin treatment is performed after treatment with ammonia gas.

FIG. 6 shows the degree of shrinkage after five cycles of washing using a detergent when resin processing is performed.

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazushige Sakurai Osamu-cho, Kaifu-gun, Aichi prefecture 5-11-48 Toyota, Minami-ku Iwatani Gas Network Co., Ltd. Chubu Office (72) Inventor Date Nobun 3-4-8 Honcho, Chuo-ku, Osaka-shi, Osaka Iwatani Corporation (72) Inventor Toru Fukada 3-4-8 Honcho, Chuo-ku, Osaka City, Osaka Prefecture Inside Iwatani Corporation (56) References JP-A-8-127962 (JP, A) JP-A-11-200248 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) D06M 23/00-23/18 D06M 11/60 D06M 15/00-15/715

Claims (2)

(57) [Claims] Claims 1. A cellulosic fiber fabric or a sewn fiber product is treated with ammonia gas, the ammonia gas is exhausted, and then processed with a resin containing no formalin component. A method for stabilizing the form of a cellulosic fiber in which a sewn fiber product is dried and then pressed, and the pressed fabric or the sewn fiber product is subjected to a heat treatment. 2. The method for stabilizing the form of a cellulosic fiber according to claim 1, wherein the treatment before resin processing is performed with a mixed gas of ammonia gas and an inert gas.