JP3401230B2 - Finishing method of knitted fabric - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finishing method for a natural fiber product and a fiber product obtained by fiberizing a natural material, and in particular, the size, shape, folds and wrinkles imparted to the fiber product can be stabilized. The present invention relates to a shape-stable processing method for holding, for example, a processing method such as shrink-proof processing, wrinkle-proof processing, crease processing, wrinkle processing for textile products for clothing.

[0002]

2. Description of the Related Art Textile products for clothing made of cellulose fibers and cellulose derivative fibers are usually subjected to wrinkle-proof / shrink-proof processing because wrinkles and shrinkage are generated by washing.

In the conventional method, a resin agent (N-
It is impregnated with methylol-based, glyoxal-based, sulfone-based, epoxy-based, polycarboxylic acid-based, etc.) and heat-treated to cause a cross-linking reaction between the cellulose and the resin, thereby imparting wrinkle / shrinkproof properties.

As another method, there is a method of imparting morphological stability by treating a textile product of clothing made of cellulose fibers and cellulose derivative fibers in a gas atmosphere mainly containing formalin.

[0005]

In the conventional method as described above, since a chemical agent such as a solvent in resin processing or formalin in gas phase processing is used, it is feared that the residue may adversely affect the environment and the human body. . Further, in resin processing, a significant reduction in texture occurs due to crosslinking.

[0006] Therefore, an object of the present invention is to obtain a processing method capable of stably maintaining the shape of clothing or other textile products without using chemicals.

[0007]

SUMMARY OF THE INVENTION The present invention enhances crystallinity in a fiber by applying high pressure to a natural fiber product or a fiber product obtained by fiberizing a natural material in the presence of water in a heating environment. Morphological stability of knitted fabrics under high pressure,
In other words, if you treat it in a wrinkled state, it will retain wrinkle,
It is characterized by imparting wrinkle resistance if treated in a flat state and also imparting shrinkage resistance. In order to solve the above problems, in the present invention, heat of 50 ° C. or higher and 500 atm are applied. Higher pressure is used.

In the finishing method of claim 1, the cellulose fiber knitted fabric, the cellulose derivative fiber knitted fabric or the protein fiber knitted fabric in which water is attached or impregnated with water or steam is put under a reduced pressure in a bag of an impermeable film. Sealed
This is immersed in a pressure medium such as water or oil, and thermal energy and a pressure of 500 to 1000 atm or more are applied for a predetermined time through the pressure medium.

The finishing method according to claims 2 and 3 is
Using water as a pressure medium, a cellulose fiber knitted fabric, a cellulose derivative fiber knitted fabric or a protein fiber knitted fabric is directly immersed in a pressure medium, and heat energy and a pressure of 500 to 1000 atm or more are applied through the pressure medium. Is added for a predetermined time.

In the method of the present invention, when wrinkle-proofing is performed, heat and high pressure are applied by putting the textile product in a flatly spread state in a bag or immersing it in a pressure medium. When wrinkling is performed, the fiber product is wrinkled and placed in a bag or immersed in a pressure medium to apply heat and high pressure.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION First Embodiment FIG. 1 shows a first embodiment of the present invention. Immerse the sample dough in water and squeeze it with a mangle so that the weight ratio of dough to water is 1: 1. The sample obtained is impermeable so that water does not permeate under a depressurized environment of about 1 Torr. It is put in a bag 11 made of a film (for example, high-density polyethylene) and sealed. The sealed sample 5 is housed in a wire mesh container 6, and the wire mesh container 6
Is placed in a pressure vessel 2 of a cold static pressure press known as a ceramics processing apparatus, and is closed with a pressure resistant cap 7.

The bag 11 is submerged in the oil 12 in the pressure vessel 2, and the pressure pump 13 sends pressurized oil to increase the internal pressure of the pressure vessel 2, and at the same time, the temperature of the oil is raised by the heater 3, and in that state. Hold for a predetermined time. After a lapse of a predetermined time, the inside of the container 2 is returned to atmospheric pressure, the pressure cap 7 is opened, the wire net container 6 is taken out, the impermeable film 11 is opened, the sample 5 is taken out, and dehydrated and dried by a usual method. .

As a sample, cotton fabric and rayon fabric (J
Using the attached white cloth for IS test), the treatment temperature is 60 ° C and 1
00 ℃, processing pressure 500 atm, 1000 atm and 40
The pressure was set to 00 atm and the treatment was performed for 30 minutes. A shrinkage test by washing (JISL1042
Method E) was performed to calculate the shrinkage rate. The results are shown in the following table in comparison with the results of similar tests on untreated samples.

[0014]

[Table 1]

When the untreated fabric sample (cotton, rayon) and the high pressure treated fabric sample (cotton, rayon) according to the method of the present invention are compared, the sample subjected to the high pressure treatment has a washing shrinkage ratio higher than that of the untreated sample. Is smaller, and shrink resistance is improved.

Second Embodiment FIG. 2 is a diagram showing a second embodiment of the present invention. The same dough 5 as the sample used in the first embodiment is directly housed in the wire net container 6, the wire net container 6 is immersed in water in the pressure container 2 of the cold static pressure press 1, and the pressure cap 7 is used. Seal it.
Next, the piston 9 of the pressurizing device is operated to pressurize the water in the pressure vessel 2, and at the same time, the temperature of the water in the vessel 2 is raised by the heater 3, and this state is maintained for a predetermined time. After a lapse of a predetermined time, the pressure vessel 2 is returned to atmospheric pressure, the pressure resistant cap 7 is opened, the sample 5 is taken out from the pressure vessel, and dehydrated under normal conditions.
dry.

Also in the sample treated in the second example, improvement in shrinkage was recognized in the shrinkage test by washing similar to the sample treated in the first embodiment.

Third Example A silk woven fabric (white cloth attached to JIS test) is folded in a desired width and fixed. After the fixed sample is moistened with water, it is placed in an impermeable bag and the treatment temperature is 80 ° C and the treatment pressure is 1000.
The treatment was carried out at atmospheric pressure and 4000 atmospheric pressure for 30 minutes. A washing test was performed on the high-pressure-treated sample to confirm the wrinkle holding state. As a result, the wrinkles were retained on the processed fabric even after washing, although the wrinkles were partially strong and weak.

[0019]

As described above, according to the present invention, a cellulose fiber knitted fabric, a cellulose derivative fiber knitted fabric and a protein fiber knitted fabric are intervened with water, and at a temperature of 50 ° C. or higher, 500 vapor is generated.
The ultrahigh pressure treatment exceeding a pressure, preferably 1000 atm, increases the crystallinity of the natural fiber and imparts morphological stability. The method of the present invention does not discharge harmful waste at all and can sufficiently process the product.

[Brief description of drawings]

FIG. 1 is a sectional view of a CIP device used in a first embodiment.

FIG. 2 is a sectional view of a CIP device used in the second embodiment.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshikazu Abe 77 No. 4 in Kamishukudacho, Daishoji Temple, Kaga City, Ishikawa Prefecture 4 Kaetsu Sangyo Co., Ltd. (56) Reference JP-A-6-136659 (JP, A) Flat 11-131370 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) D06C 21 / 00,23 / 00,29 / 00 D06M 11 / 05,11 / 38

Claims (3)

(57) [Claims] 1. A knitted cellulose fiber fabric impregnated with water ,
Cellulose derivative fiber knitted fabric or protein fiber knitted fabric is placed in an impermeable bag and sealed, and the sealed knitted fabric is immersed in a pressure medium having a temperature of 50 ° C. or more and a pressure of 500 atm or more and kept for a predetermined time. The method for finishing a knitted fabric is characterized by improving the morphological stability of the knitted fabric. 2. A cellulose fiber knitted woven fabric, a cellulose derivative fiber knitted woven fabric or a protein fiber knitted woven fabric is put into water in a pressure vessel, and the water is heated to a temperature of 50 ° C. or more and a pressure of 500 atm or more and held for a predetermined time. The method for finishing a knitted fabric is characterized by improving the morphological stability of the knitted fabric. 3. A cellulose fiber knitted woven fabric, a cellulose derivative fiber knitted woven fabric or a protein fiber knitted woven fabric is charged in water in a pressure vessel in a wrinkled state, and the water is heated to a temperature of 50 ° C. or higher and a pressure of 500 atm or higher. A method for finishing a knitted or woven fabric, characterized in that the stability of the wrinkled state of the knitted or woven fabric is improved by raising the temperature and holding it for a predetermined time.