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Technology for dyeing and finishing real silk/corn fabric

A technology for fabrics and corn, applied in the field of dyeing and finishing of real silk/corn filament fabrics, can solve the problems of corn fiber damage, serious silk staining, hydrolysis and breakage of ester bonds, etc., to ensure fabric strength, improve dye uptake, The effect of high color fastness

Active Publication Date: 2012-06-06
HIGH FASHION CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But there are currently these problems: 1. The ester bond in the molecular structure of polylactic acid is easy to be hydrolyzed and broken under alkaline or high temperature conditions, so the pH value, temperature and time need to be strictly controlled in the dyeing and finishing process; 2. Disperse dyes suitable for polyester dyeing Not all are suitable for polylactic acid fiber dyeing, many commonly used disperse dyes have a low dyeing rate on polylactic acid fiber; 3. Disperse dyes can not only dye corn fiber, but also stain silk very seriously; the color of disperse dyes stained on silk The fastness is extremely poor. If it is not removed, the overall color fastness of the fabric will decrease: conventional alkaline reduction cleaning will not only cause damage to the corn fiber, but also remove staining and discoloration on the silk
4. If reactive dyes are dyed in an alkali bath, it will have a greater impact on the strength of corn fibers
Therefore there is no dyeing and finishing method suitable for real silk / corn fiber fabrics at present

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

[0057] Silk jade spinning Color: pink (light color) 810 meters / 18 pieces,

[0058] It takes 15-20 minutes to practice whitening and dyeing in the jigger.

[0059] Technological process: Seam head→rolling→lower vat→pretreatment→enzyme training→retraining→washing→dyeing→washing→rolling→padding softener→heat setting;

[0060] A. Pretreatment

[0061] Auxiliary: Soda Ash 1g / L, Penetrant 0.5g / L,

[0062] Before entering the vat, check whether the machine meets the production requirements, enter the water (250 liters) according to the standard water level, and then put it into the vat in a flat width, pay attention to the weft inclination; go one way with cold water; add additives, the temperature rises to 50°C ± 2°C, and 6 channels for drainage, 1 channel for warm water;

[0063] B. Enzyme training

[0064] Alkaline protease 4g / L, appropriate amount of soda ash and baking soda to adjust the pH to 9;

[0065] Enter 250 liters of water, add enzyme and alkali, and stir, the tem...

Embodiment 2

[0078] Silk jade georgette Color: blue (dark) Whitening and dyeing are carried out in different equipment;

[0079] Lianbai is practiced in the training tank, 40 horses / barrel, and the process is as follows:

[0080] Gray silk preparation → barreling → pretreatment → enzymatic training → re-training → washing → water rejection → heat setting;

[0081] The dyeing is carried out in a high temperature and high pressure overflow dyeing machine, 24 horses per cylinder, and the technological process is as follows:

[0082] Dyeing with disperse dyes→reduction cleaning→washing→dyeing with reactive dyes→soaping→washing→water rejection→heat setting.

[0083] A. Preprocessing

[0084] Auxiliaries: Soda ash 0.5g / L, Soda ash 1.5g / L, Dispersant 1.5g / L;

[0085] The volume of water in the training bucket is 4000 liters, add additives, hang gray silk, the temperature rises to 60°C ± 2°C, steam is slightly opened, and the temperature is kept for 60 minutes, with 3 operations in between.

...

Embodiment 3

[0109] Silk jade bead forging Color: white

[0110] Lianbai is practiced in the training tank, 40 horses / barrel, and the process is as follows:

[0111] Gray silk preparation → barreling → pretreatment → enzymatic training → re-training → washing → water rejection → heat setting;

[0112] A. Preprocessing

[0113] Auxiliaries: Soda ash 0.5g / L, Soda ash 1.5g / L, Dispersant 1.5g / L;

[0114] The volume of water in the training bucket is 4000 liters, add additives, hang gray silk, the temperature rises to 60°C ± 2°C, steam is slightly opened, and the temperature is kept for 60 minutes, with 3 operations in between.

[0115] B. Enzyme training

[0116] Alkaline protease 4g / L, appropriate amount of soda ash to adjust the pH to 9;

[0117] The volume of water in the training bucket is 4000 liters, add additives, adjust the pH to 9, raise the temperature to 45°C±2°C, hang the blank silk, steam slightly, keep warm for 4 hours, and operate 10 times in the middle.

[0118] C. Rehears...

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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Abstract

The invention relates to technology for dyeing and finishing real silk / corn fabric. In order to solve the technical problem, the invention provides the provided technology for dyeing and finishing which can effectively improve the dye uptake of the corn fiber and the color fastness of the fabric, and maximize the strength of the corn fiber and the fabric. The technical scheme of invention is that: the technology for dyeing and finishing the real silk / corn fabric comprises the processes of bleaching, dyeing and heat shaping in turn. The technology for dyeing and finishing the real silk / corn fabric is characterized in that: 1) the bleaching (refining) process comprises steps of pretreating, enzyme scouring, and second scouring; 2) the dyeing process comprises steps of dyeing, reduction clearing, and water washing, wherein staining solution comprises a disperse dye and a reactive dye, or the dyeing process comprises steps of disperse dye dyeing, reduction clearing, water washing, reactive dye dyeing, soap boiling and water washing; and 3) the heat shaping process comprises steps of padding soft solution and heat shaping, wherein the enzyme scouring in the bleaching process adopts neutral enzyme scouring or alkaline enzyme scouring; the staining solution of the disperse dye comprises 0 to 2 g / L of darkening agent DL-6; and the fabric dyed by the disperse dye needs to be washed by adopting acid reduction technology.

Description

technical field [0001] The invention relates to a fabric dyeing and finishing process, in particular to a dyeing and finishing process for real silk / corn filament fabrics. Background technique [0002] Silk is a symbol of ancient Chinese culture. It is famous all over the world for its excellent quality, exquisite colors and rich cultural connotations. Silk cellulose has the reputation of "fiber queen". From an ecological point of view, it is a completely pollution-free natural fiber with unparalleled unique properties: light and smooth, soft and comfortable, good moisture absorption and air permeability, and unique Soft and bright luster, but also has a health care effect on the human body. However, real silk has disadvantages such as poor wet elasticity and easy yellowing, which make it difficult to give full play to its excellent quality. [0003] The scientific name of corn fiber is polylactic acid fiber (that is, PLA fiber). It is made of natural sugar extracted from ...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/872D06M16/00C12S11/00D06M101/10D06M101/32
Inventor 吴岚翁艳芳
Owner HIGH FASHION CHINA CO LTD
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