Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of cellulose fiber blank dyeing fabric

A cellulose fiber and fabric technology is applied in the field of preparation of blank fabrics, which can solve the problems of lack of three-dimensional effect of ash, unclear fabric patterns, sticky color of blank parts, etc., and achieves strong flexibility and market adaptability without high temperature. Soaping, pure shade

Active Publication Date: 2021-02-19
SOUTH CHINA UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The biggest problem in the blank dyeing of cellulose fiber fabrics is that the blank part is seriously sticky, causing the white part to look "dirty", the fabric pattern is not clear, and the gray is lacking in three-dimensionality. How to avoid unintended stains during the dyeing process and subsequent washing process Adsorption of dyes to modified fibers to avoid staining is the key to this method

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of cellulose fiber blank dyeing fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The jacquard knitted fabric woven with 40s / 2 ordinary cotton yarn and 40s / 2 modified viscose fiber yarn is ready for use after descouring and bleaching pretreatment; soft water is added to the dyeing machine, and the jacquard knitted fabric is put into it, and the water level is adjusted to a predetermined value. The bath ratio is 1:10, adjust the pH value to 4.8 with glacial acetic acid, and heat to 60°C; dissolve the dye with reflux water, the dye prescription is: reactive yellow CRF: 3.0% owf, reactive red CRF: 0.09% owf, reactive blue CRF: 0.024% owf (according to the weight of the modified fabric), and adjust the pH value to 4.8 with acetic acid, then inject it into the dyeing machine, control the temperature at 60 ° C, and discharge the dye liquor after 20 minutes; use acetic acid aqueous solution with a pH value of 5.0 at room temperature Wash for 10 minutes and drain; wash with water for 10 minutes at room temperature, drain; then reduce and wash for 15 minutes a...

Embodiment 2

[0023] The woven stripe cloth woven with 40s / 2 ordinary cotton yarn and 40s / 2 modified viscose fiber yarn is ready for use after deboiling and bleaching pre-treatment; add soft water to the dyeing machine, put the woven stripe cloth into it, and adjust the water level to the predetermined Value, bath ratio 1:12, adjust the pH value to 5.0 with glacial acetic acid, heat to 55 ° C; dissolve the dye with reflux water, the dye prescription is: reactive blue FN‐R: 2.8% owf, reactive black WH‐B: 0.7% owf (according to the weight of the modified fabric), and adjust the pH value to 5.0 with acetic acid, then inject it into the dyeing machine, control the temperature at 55 ° C, and discharge the dyeing liquor after 25 minutes; wash with acetic acid aqueous solution with a pH value of 5.0 at room temperature for 15 Drain in minutes; wash with water at room temperature for 6 minutes, drain; then reduce and wash at room temperature for 10 minutes to drain, the reduction cleaning agent is D...

Embodiment 3

[0025] 80% cation-modified cotton and 20% ordinary cotton fiber blended yarn (32s / 2) knitted fabric is used after descouring and bleaching pre-treatment; soft water is added to the dyeing machine, the knitted fabric is put into it, and the water level is adjusted to a predetermined value. Ratio 1:10, adjust pH value to 4.7 with glacial acetic acid, heat to 60°C; dissolve reactive black WH‐B with reflux water, dye concentration 3.3% owf (by weight of modified fabric), and adjust pH value to 4.7 with acetic acid , then pour it into the dyeing machine, control the temperature at 60°C, and discharge the dye solution after 20 minutes; wash with acetic acid aqueous solution with a pH value of 5.0 at room temperature for 10 minutes to drain; wash with water at room temperature for 10 minutes, and drain; then reduce and wash at room temperature Drain after 15 minutes, the reducing cleaning agent is RC-W (Hangzhou Duoen Textile Technology Co., Ltd.) 2g / L, liquor ratio 1:25; finally wash...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a cellulose fiber sprinkly dyed fabric. The method comprises the steps: adding soft water to a dyeing machine, then adding a cationic modified cellulosefiber / unmodified ordinary cellulose fiber fabric subjected to desizing pre-treatment into the soft water, adjusting the water level to a predetermined value, adjusting the pH value to 4.5-5.5 by glacial acetic acid, heating up to a dyeing temperature, and dissolving a reactive dye with reflux water, adjusting the pH value of the dyeing solution to 4.5-5.5 by glacial acetic acid, injecting into the dyeing machine, and 15-25 min later, discharging out the dyeing solution; and carrying out room temperature pickling, room temperature water washing, room temperature reduction washing, room temperature water washing, and dehydration drying of the dyed fabric, and thus obtaining the cellulose fiber sprinkly dyed fabric. Compared with a method for dispersed fiber dyeing and yarn dyeing and then yarn-dyed weaving, the sprinkly dyeing of the fabric has stronger flexibility and market adaptability. After the white gray fabric is woven with cationic modified fibers / unmodified ordinary fibers, small-batch and multi-variety production is carried out according to different requirements of the market on color and depth.

Description

technical field [0001] The invention relates to a preparation method of blank fabric, in particular to a preparation method of cellulose fiber blank dyed fabric. [0002] technical background [0003] Cellulose fiber fabric has moisture absorption, breathability and good skin-friendly properties. It is an excellent clothing material and is loved by consumers. Floral gray and two-tone stripes or jacquards with white as one of the colors are a few important fabric styles, but when made entirely from cellulose fibers, flowers are usually only woven with dyed loose and white loose fiber blends. Grey, weaving non-white / white stripes or jacquard fabrics with dyed yarns and white yarns, from the characteristics of these two methods and the consideration of production costs, it must have a considerable production volume, and it is difficult to adapt to market changes. In order to increase the ability of such fabrics to respond to market changes, a new idea is to dye the fabric with ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/854D06P1/00D06P1/38D06P5/02D06P5/06
CPCD06P1/0032D06P1/38D06P3/828D06P5/02D06P5/06
Inventor 刘维锦黄永华张新文谭美贤
Owner SOUTH CHINA UNIV OF TECH