JPH06248583A - Method for dyeing fabric product - Google Patents

Abstract

PURPOSE:To obtain a flexible product close to natural drop-off feeling and having bright shade of color and worn-out feeling by synergistic effect of an enzyme and solid material having abrasive action by treating a fabric product (jeans) before or after dyeing with the enzyme and the solid material having abrasive action while heating under stirring. CONSTITUTION:A fabric produce before or after dyeing, especially jeans product is supplied into a treating bath (or enzyme-containing bath as another bath) obtained by adding an enzyme (cellulase) to a treating liquid containing one kind of an oxidizing agent, a reducing agent, etc., inorganic or organic particle solid material, etc., for abrasion (e.g. chip of natural or synthetic rubber vulcanized material) and subjected to heating and stirring treatment (in a liquid phase state) or impregnated with an enzyme liquid and then dehydrated and the dehydrated fabric product is put together with abrasive solid material and rotated while blowing steam (in a vapor phase) thereto to provide the soft fabric product (jeans) close to natural drop-off feeling and keeping a state free from unnaturalness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel method of softening and dyeing finishing of natural fiber sewing products, particularly jeans products.

[0002]

2. Description of the Related Art Conventional materials used for dyeing and discharging of natural fiber sewn products such as cotton, especially jeans products, include natural pumice stone, gravel, wood chips, artificial abrasives, or sintered products thereof and plastics. Granules, and dyes (reactive dyes, reducing dyes, direct dyes, disperse dyes, naphthol dyes), reducing agents (hydrosulfite, rongalite, sodium sulfide, etc.), oxidizing agents (acetic acid, hydrogen peroxide), caustic soda, Examples include soda ash and sodium hypochlorite.

In the actual processing work, random discharge and dyeing of jeans products and the like have been carried out by a drum type rotary washing machine of about 2 m ³ using the above various materials and chemicals. For example, in Japanese Examined Patent Publication No. 62-28235, post-dyeing processing is performed in which denim fabric is physically rubbed to partially expose the core white of the dyed yarn, and the core white part is dyed in a color different from that of the dyed yarn. In addition, JP-A-63-295777 discloses that a cloth product after sewing has one or more kinds of oxidizing agents, reducing agents, dyes, etc. and a mixture of abrasive solid particles. It is described below that stirring treatment is performed in a gas phase container. In addition,
No. 62-295776 proposes a method in which a polishing stone to which a dye and a sizing agent or a pretreatment agent for dyeing and a sizing agent are attached is brought into contact with a sewn product in a washing machine. In addition, although it is not a cloth product, Japanese Patent Publication No. 52-48236 discloses that cellulosic fibers are treated with a cellulase-containing liquid for a short time to improve hygroscopicity and texture.

[0004]

However, in the processing of natural fiber sewn products using conventional oxidizing agents and reducing agents, the product after discharge printing is different from the natural falling state, and the shade of color is not clear. However, there was a problem that it did not feel like natural wear. Further, conventionally, there is a difficulty that the soft ones are not suitable for the actual condition because they are still peculiar to jeans even after processing.

[0005]

Means for Solving the Problems As a result of studying the above problems, one or more kinds of oxidizing agents, reducing agents, dye-dyeing assistants, and an inorganic material for polishing are applied to a cloth product before or after dyeing. One or two or more kinds of organic particulate solids are added, and the mixture is treated in the closed container in the gas phase or the liquid phase in the same bath as the enzyme or in a separate bath with heating and stirring under heating. We developed a dyeing method for products.

In this case, the abrasive solid is preferably a natural or synthetic rubber vulcanized chip, and the enzyme is preferably cellulase. Cellulase, which is described in detail in Japanese Examined Patent Publication No. 52-48236, is an enzyme obtained by extraction of bacterial cells, that is, Coniocilium jibursziela, Aspergillus oryzae, Trichoderma viride.

[0007]

According to the present invention, the density of discharge of the cloth product is clear due to the synergistic effect of the surface of the natural fiber cloth product being eroded by the enzyme and the polishing action of the inorganic or organic particulate solid for polishing. Appear in. In addition, when the dyeing method is performed in the gas phase while the whole is softly finished, the product is in a relaxed state without pulling due to the resistance of the liquid, so it is a product that is naturally worn over time and has no unnaturalness. Becomes

[0008]

【Example】

Example 1 About 50 kg of a cotton cloth product dyed with a natural fiber dyeing dye,
Approximately 50 kg of solid rubber with a size of 40 mmφ and a rotary washing machine (120
(0 mmφ x 1800 length), inject about 500 liters of water,
The mixture was heated at 5 ° C to 60 ° C, adjusted to PH 5.5 with an oxidizing agent, and while being rotated, 1.5 kg of a cellulase enzyme agent (Cellocrust 1.5 L manufactured by Novo Industry Japan) was added and treated for 1 hour.

This cotton cloth product was washed with 500 liters of water at 50 ° C. in warm water and then dried. As a result, the convex portion of the woven structure on the cloth surface was colored by enzyme fiber erosion and rubbing by a rubber solid. It was possible to obtain a product in which the shade of is clear.

Example 2 About 50 kg of a cloth product dyed in the same manner as in Example 1 was immersed in 50 liters of water in which 250 g of the same cellulase enzyme agent as in Example 1 was dissolved and then dehydrated, and about 50 kg of 1 A rectangular solid of natural rubber having a side of 30 mm was placed in the rotary type washing machine similar to that in Example 1, and steam was jetted into the machine to rotate for 30 minutes while maintaining the temperature at 55 ° C to 60 ° C. After draining, only the solid matter was taken out and the cloth product was washed with 500 liters of water.

As a result, unlike Example 1, the processing is in the gas phase, there is no tension due to the resistance of the liquid in the liquid phase of Example 1, and there is no unnaturalness due to the processing because the processing is in a relaxed state. It was possible to obtain an ultra-flexible product that has the feeling of natural wear over time.

Example 3 About 70 kg of white sewn garment product and 120 kg of granular sand of about 1 mm diameter
Put it in a rotary barrel machine (1500 mmφ x 1500 length) and rotate it for about 30 minutes, then eject steam and rotate it to a humidity of 80
%, 2 g / l of cell crust 1.5 L enzyme was added and treated for 1 hour, then about 300 g of powdered direct dye (Nippon Kayaku KK, Kayarus Black-160) was added to this to give a sandy solid. It was processed for about 40 minutes in the same bath of the product, enzyme and direct dye. Then, it was washed with 500 liters of water.

As a result, the surface of the cloth product is close to the plain color.
Moreover, we were able to obtain a product with a silhouette similar to that of a mound.

Example 4 About 70 kg of a white sewn garment product was put into the rotary barrel type washing machine used in Example 3, 680 liters of water was added thereto, and another 2
1 kg of reactive dye (Remazal Brilliant Red BB, manufactured by Mitsubishi Kasei Hoechst KK) dissolved in 0 liter of water and 20 g of anhydrous Glauber's salt
g was added to carry out pigmentation for 10 minutes, 2 g / l of the enzyme agent was added thereto, and the mixture was treated for about 30 minutes with the reactive dye, mirabilite and the enzyme agent in the same bath.

To this was added 1.6 kg of caustic soda dissolved in 10 liters of water, the temperature was raised to 80 ° C., and
The dyeing reaction and the enzyme deactivation treatment were simultaneously performed for 30 minutes. After drainage, the product was washed with 700 liters of water and further neutralized with a 1 g / liter acetic acid solution.

As a result, a difference in dyeing (due to the strength of the atari portion) was produced in addition to the stone W tone due to the enzyme, the so-called atari tone. In addition, it is possible to greatly reduce heat energy, water volume, and time by simultaneously performing the double processing that has been performed up to now, such as dyeing of white background fabric products and enzyme processing (bioprocessing).

[0017]

According to the present invention, the erosion of the fiber surface and the interior by the enzyme agent and the friction of the rubber solid material caused by the enzyme agent and the softening agent, which had not been seen in the past, were observed. It was possible to obtain a fabric product having a wool-like flexibility that is different from the flexibility. In addition, when the above-described processing method was applied to the sewn product of the colored cloth, the state of color loss was different from the state of color loss caused by the conventional oxidizing agent and reducing agent, and the state closest to natural loss could be obtained.

Claims (2)

[Claims] 1. A cloth product before or after dyeing, containing one or more kinds of an oxidizing agent, a reducing agent, a dye-dyeing auxiliary agent, and one or more kinds of an inorganic or organic particulate solid for polishing. In addition, a method for dyeing a textile product, wherein the mixture is treated in the same bath as the enzyme or in a separate bath under heating and stirring in a gas phase or a liquid phase in a closed container. 2. The method for dyeing and processing a cloth product according to claim 1, wherein the polishing solid material is a chip of a natural or synthetic rubber vulcanizate, and the enzyme is cellulase.