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Natural dyestuff dyeing process of fleece fabrics

A technology of natural dyes and natural pigments, applied in the direction of dyeing, textile and paper making, etc., to reduce damage

Inactive Publication Date: 2019-01-18
JIANGSU SUNSHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chestnut shells and sycamore leaves can be used as sources of natural dyes, but cashmere dyeing with natural dyes from sycamore leaves has not been reported

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The natural dye dyeing process of embodiment 1 cashmere fabric comprises the following steps:

[0021] S1: Extraction of natural pigments. Crush sycamore leaves and place them in water, heat them at 80°C under ultrasonic conditions, soak them for 1.5 hours, cool them at room temperature for 20 minutes, and then filter them to obtain the filtrate and dilute the filtrate;

[0022] S2: Add penetrating agent, leveling agent and alum to the diluted filtrate obtained in S1, and mix evenly to obtain a dyeing liquor containing natural dyes. The weight percent of penetrating agent in the dyeing liquor is 1.5%, and the weight percent of leveling agent is 2%. , the weight percent of alum is 6%;

[0023] S3: Put the cashmere fabric in the dyeing solution with a bath ratio of 1:20, slowly raise the temperature to 95°C and keep it warm for 80 minutes, cool down to 70°C, add 1,6-hexanediol, keep it warm for 60 minutes, and take out the cashmere fabric;

[0024] S4: Wash the cashmere ...

Embodiment 2

[0027] The difference between embodiment 2 and embodiment 1 is:

[0028] S1: Soak and cook for 1 hour under ultrasonic conditions at 85°C, cool to room temperature for 30 minutes, and then filter;

[0029] S2: the weight percentage of the penetrating agent in the dyeing liquor is 0.5%, the weight percentage of the leveling agent is 3%, and the weight percentage of alum is 5%;

[0030] S3: Put the cashmere fabric in the dyeing solution with a bath ratio of 1:30, slowly raise the temperature to 95°C for 50 minutes, cool down to 80°C, add 1,6-hexanediol, keep it for 40 minutes, and take out the cashmere fabric;

[0031] The penetrant is an alkyl phosphate salt.

[0032] The slow heating rate in S3 was 1.5°C / min.

[0033] The leveling agent is composed of lauryl dimethyl benzyl ammonium chloride and sulfonated oil in a weight ratio of 1:2. The ultrasonic frequency in S1 is 40kHz.

Embodiment 3

[0035] The difference between embodiment 3 and embodiment 2 is:

[0036] S1: Soak and boil for 1 hour under ultrasonic conditions at 82°C, cool to room temperature for 25 minutes, and then filter;

[0037] S2: the weight percent of the penetrating agent in the dyeing liquor is 1%, the weight percent of the leveling agent is 2.5%, and the weight percent of alum is 5.5%;

[0038] S3: Put the cashmere fabric in the dyeing solution with a bath ratio of 1:25, slowly raise the temperature to 95°C and keep it warm for 65 minutes, cool down to 75°C, add 1,6-hexanediol, keep it warm for 50 minutes, and take out the cashmere fabric;

[0039] The slow heating rate in S3 is 1.7°C / min; the leveling agent is a combination of sulfonated oil and higher alcohol sulfate sodium salt at a weight ratio of 1:3; the ultrasonic frequency in S1 is 37kHz.

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PUM

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Abstract

The invention discloses a natural dyestuff dyeing process of fleece fabrics. The natural dyestuff dyeing process comprises the four steps; extracting natural pigment, preparing dye liquor, dyeing andcleaning. The natural dyestuff dyeing process of fleece fabrics adopts sycamore leaves as the natural dyestuff source, the dyestuff is extracted by utilizing ultrasonic soaking and cooking, the colorfastness to soaping of the obtained fabric can be maintained at level 4 and higher through the co-bath enzymic staining method, but the color fastness to dry friction is level three; and the protein derivative can be added to form a protection effect on the fleece fabrics, and the damage of the fleece fabric at high temperature is weakened.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a natural dye dyeing process for cashmere fabrics. Background technique [0002] Cashmere is a thin and curved fiber, which contains a lot of air and forms an air layer, which can defend against the invasion of external cold air and keep the body temperature without lowering. Cashmere is composed of a scale layer and a cortex layer, usually 13-16 μm in diameter, without a medulla layer, and the density of the scales is higher than that of wool, but the visible height of the scales of cashmere is lower than that of fine wool, and the scales are closely covered on the hair shaft, and the scales The existence of a small amount of lipids in the layer also makes cashmere have a certain degree of water repellency, making it difficult for dyes to penetrate into the fiber. [0003] Natural dyes have the incomparable advantages of synthetic dyes such as non-toxic, ecological, soft color, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06P1/34D06P1/46D06P3/14D06P1/44D06P1/613D06P1/651D06P1/66D06P1/667
CPCD06P1/34D06P1/445D06P1/46D06P1/6133D06P1/65118D06P1/66D06P1/667D06P3/14
Inventor 华玉龙王榴兴许宏
Owner JIANGSU SUNSHINE
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