KR20010005411A - Development of natural dyeing from the loess - Google Patents

Abstract

A softener, a fixing agent, a dispersant, salt, etc. were added to the loess to make a salt solution, and the dye solution was then dyed into fibers using a tenter at a speed of 22 to 26 m per minute.

Conventional ocher dyeing has a disadvantage in that the practical value is poor due to the increase in production costs, difficulty in mass production, staining (stain) and washing fastness in the manual industry. Therefore, the purpose is to develop dyeing processing technology using a tenter to reduce production costs, mass production, and to remove salt and improve washing fastness.

To this end, 6-8% softener, 3-6% fixing agent, 1-2% dispersant, 1-3% salt, etc. were added to the ocher fine particles that passed through the 38 μm sieve, and water was added to the well mixed salt solution. The amount was 120 liters to prepare a saline solution capable of dyeing 100 kg of fiber. This saline solution was used to continuously dye using a tenter group. The speed was usually maintained at a speed of 22-26 m per minute and the drying temperature was 150 ° C.

The color of the dyed cloth is pink and natural, and the fastness of washing is 4 ~ 5 grade, the pollution degree is 5 grade, and it does not contaminate at all when washing with other fabrics. In the far-infrared experiment, it was confirmed that 2% of far-infrared ray was emitted from the cloth dyed with ocher.

Description

Development of natural dyeing technology using loess {Development of natural dyeing from the loess}

Conventional dyeing using artificial dyes may be a problem of environmental pollution, but the present invention is environmentally friendly because it uses natural loess.

Until now, the ocher dyeing has a disadvantage in that the production cost is high by the method of the manual industry, the mass production is difficult, the salt spots are severe, the washing fastness is poor, and the practical value is low.

The purpose is to develop a dyeing process technology using a tenter capable of mass production while reducing labor costs and preventing the occurrence of salt.

In the conventional method using ocher, dyeing was good regardless of the ocher concentration, the place of origin, the number of cotton, the temperature, the number of dyeings, the type of mordant, and the time of mortar. However, the fastness to washing was 1-2 levels, so there was no use value. However, pollution level was good at 5th grade. In addition, it was judged to be industrially worthless because it was stained by hand, and it was pointed out as a problem because mass production was difficult.

On the other hand, in the dyeing method of textiles using ocher powder, the patent of Kim Jong-woong (605-7 Jungbu-dong, Yangsan-si, Gyeongsangnam-do, Korea, 626-050) discloses the existing dyeing method using ocher. At the same time, to provide a dyeing method having a good dyeing effect that does not occur discoloration, stains, etc. by the existing dyeing method, as the gist of the solution of the invention is to collect the water to take the ocher powder having a particle diameter of less than 0.005㎛ The ocher salt bath was prepared by suspending ocher powder, and the ocher salt bath was heated to immerse the fiber to be dyed while maintaining the temperature of the salt bath at 90 ° C. or higher, and stirred for 5 to 10 minutes to dye the ocher powder on the fiber. It is said that it can be produced by taking out the dried fiber from the salt bath, drying it, and washing it until no more ocher powder is released as washing water.

In order to solve the above limitations, the object of the present invention is to develop a dyeing processing technique in large quantities at room temperature using uniformity and tenter of ocher salt and to increase washing fastness.

To this end, according to the present invention, the ocher fine particles passed through the 38 μm sieve use 3 to 8% of the fiber weight according to the color shade, and 6 to 8% softener, 3 to 6% binder, and 1 to 2% dispersant. Add 1 ~ 3% salt and mix well with stirrer. On the day of dyeing, water is added to this salt solution to make 120 liters of the total amount, and a salt solution capable of dyeing 100 kg of fiber is prepared.

The salt solution is placed in a salt tank, and water is added to stir well for about 10 minutes to allow the sunken ocher particles to float and dye continuously at room temperature (15 to 30 ° C.) using a tenter. Considering the thickness of the fiber and the test rate, the tenter speed was maintained at 22 ± 2m / min for thick fabrics and 26 ± 2m / min for light fabrics, and the drying temperature was adjusted to about 150 ± 5 ° C.

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The present invention is a processing technology for preparing a natural dye by preparing a uniform salt solution using ocher and also dyeing the fiber as follows.

(1) When the ocher salt solution was prepared and dyed with uniform color, the reproducibility was excellent.

(2) The color of H (color) was 0.1Y, V (brightness) was 8.9, and C (saturation) was 1.5-1.6.

(3) As a result of dyeing with tenter, there were almost no plaques, and some of the plaques were removed by washing with water.

(4) In the case of using a tenter, dyeing can be performed at a speed of 22 to 26 meters per minute, thereby enabling mass production.

(5) Washing fastness was found to be almost unchanged because it was investigated by class A-1, 6 in class 4, 1 in class 4-5, and 1 class 5 out of eight samples. The contamination levels of all eight were grade 5, which did not pollute at all when washed with other fabrics.

(6) In the antimicrobial experiment, Staphylococcus aureus (Y. Staphylococcus aureus) showed the high antimicrobial effect of 96.2% in unstained cloth.

(7) In the far-infrared experiment, the test was performed at 40 ℃ (human body temperature level) in general. Emissivity (5 ~ 20㎛) was 0.87 and 3.50 × 10 ² (W / m² · ㎛, 40 ℃) in the undyed plain, and emissivity (5 ~ 20㎛) in the ocher dyed This 0.89, the radiation energy was 3.58 × 10 ² (W / ㎡ · ㎛, 40 ℃) was irradiated, it was confirmed that about 2% of far-infrared radiation is emitted in the loess stained with ocher.

Claims (2)

Saline salt preparation: Ocher fine particles (3-6% ocher concentration), 6-8% softener, 3-6% fixing agent, 1-2% dispersant, 1-3% salt, etc. When the total amount is 120 liters by adding water to the salt solution, it becomes a salt solution that can dye 100 kg of fiber (about 1000 yards). Dyeing processing technology using ocher: Pour the above-mentioned ocher salt into the salt container of the tenter, adjust the speed of fiber to 22 ~ 26m per minute, and dry at 150 ℃ to perform dyeing and drying at the same time.