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

Plant indigo printing method

A printing method, the technology of indigo, applied in the textile field, can solve problems such as difficult restoration, and achieve the effect of reducing the impact

Active Publication Date: 2020-01-03
CHANGZHOU UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because indigo is insoluble in water, it needs to be reduced to soluble leuco-salt with caustic soda and hydrosulfite before dyeing. Therefore, it is often used for textile dyeing or white printing after dyeing, and seldom uses indigo for direct printing. reports, which may be related to its difficulty in restoring

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
  • Plant indigo printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Mix acacia collagen paste with a mass fraction of 25% and guar collagen paste with a mass fraction of 3.0% according to a mass ratio of 1:5, and stir at high speed for 30 minutes to obtain a mixed paste, which is set aside;

[0020] (2) Dissolve N-(2-hydroxyethyl)ethylenediaminetriacetic acid trisodium in deionized water to prepare N-(2-hydroxyethyl)ethylenediaminetriacetic acid trisodium with a concentration of 0.5mol / L Sodium solution, under constant stirring, add ferrous sulfate until it dissolves completely, wherein, the mol ratio of ferrous sulfate to trisodium N-(2-hydroxyethyl) ethylenediamine triacetate is 4:1;

[0021] (3) Mix the plant indigo thoroughly with a small amount of deionized water and set aside; dissolve sodium hyaluronate with a small amount of water to make a sodium hyaluronate solution; dissolve sodium hydroxide in an appropriate amount of deionized water to make a hydroxide Sodium solution: Add the original printing paste into an enamel beak...

Embodiment 2

[0042] (1) Mix the acacia collagen paste with a mass fraction of 25% and the guar collagen paste with a mass fraction of 3.0% according to the mass ratio of 1:10, stir at high speed for 45 minutes to obtain a mixed paste, and set aside;

[0043] (2) Dissolve N-(2-hydroxyethyl)ethylenediaminetriacetic acid trisodium in deionized water to prepare N-(2-hydroxyethyl)ethylenediaminetriacetic acid trisodium with a concentration of 1.0mol / L Sodium solution, under constant stirring, add ferrous sulfate until it dissolves completely, wherein, the mol ratio of ferrous sulfate to N-(2-hydroxyethyl) ethylenediaminetriacetic acid trisodium is 8:1;

[0044] (3) Mix the plant indigo thoroughly with a small amount of deionized water and set aside; dissolve sodium hyaluronate with a small amount of water to make a sodium hyaluronate solution; dissolve sodium hydroxide in an appropriate amount of deionized water to make a hydroxide Sodium solution: Add the original printing paste into an enamel...

Embodiment 3

[0048] (1) Mix acacia collagen paste with a mass fraction of 25% and guar collagen paste with a mass fraction of 3.0% according to a mass ratio of 1:6, and stir at high speed for 40 minutes to obtain a mixed paste, which is set aside;

[0049] (2) Dissolve N-(2-hydroxyethyl)ethylenediaminetriacetic acid trisodium in deionized water to prepare N-(2-hydroxyethyl)ethylenediaminetriacetic acid trisodium with a concentration of 0.6mol / L Sodium solution, under constant stirring, add ferrous sulfate until it dissolves completely, wherein, ferrous sulfate and N-(2-hydroxyethyl) ethylenediamine trisodium trisodium mol ratio is 6:1;

[0050] (3) Mix the plant indigo thoroughly with a small amount of deionized water and set aside; dissolve sodium hyaluronate with a small amount of water to make a sodium hyaluronate solution; dissolve sodium hydroxide in an appropriate amount of deionized water to make a hydroxide Sodium solution: Add the original printing paste into an enamel beaker, add...

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 provides a plant indigo printing method. According to the method, acacia gum and guar gum mixed paste serves as a thickening agent, a ferrous ion and N-(2-hydroxylethyl)ethylene diaminetrisodium triacetate complex is adopted as a reducing agent, and plant indigo printing is realized by means of direct printing. A ferrite complex reduction system has strong reduction potential and iscapable of reducing plant indigo, and sodium hydrosulfite consumption is avoided. Further, reducing sugar in the mixed paste is also conducive to indigo reduction. In addition, in a printing process,urea consumption is avoided by adoption of sodium hyaluronate as a humectant.

Description

technical field [0001] The invention belongs to the technical field of textiles, in particular to a plant indigo printing method. Background technique [0002] my country is one of the first countries to use indigo dye, with a history of more than 3,000 years. The plant indigo has a bright color, a wide range of sources, and is easy to use. It is deeply loved by the working people in ancient my country. Its dyed textiles are elegant in tone and full in feel. In the rural areas of Jiangsu, Zhejiang, Yunnan, Sichuan, Guizhou, Guangxi and other provinces, there is still a tradition of dyeing with plant indigo. [0003] Because indigo is insoluble in water, it needs to be reduced to soluble leuco-salt with caustic soda and hydrosulfite before dyeing. Therefore, it is often used for textile dyeing or white printing after dyeing, and seldom uses indigo for direct printing. reports, which may be related to its difficulty in restoration. Contents of the invention [0004] In or...

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
IPC IPC(8): D06P1/34D06P1/22D06P1/48D06P1/673D06P1/647D06P3/60
CPCD06P1/228D06P1/34D06P1/48D06P1/647D06P1/6735D06P3/6025
Inventor 彭勇刚汪媛黎珊纪俊玲陶永新
Owner CHANGZHOU UNIV