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Preparation method of regenerated cellulose fiber containing natural dye

A technology for regenerated cellulose and natural dyes, which is applied to the raw materials for the textile industry and its manufacturing field, can solve the problems of restricting the application of natural dyes, low dyeing rate, high price, etc. , the effect of good color fastness

Inactive Publication Date: 2018-09-28
JIANGSU GOLDSUN TEXTILE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But at present, the dyeing of natural dyes also has many shortcomings such as low dyeing rate, low color fastness and high price, especially the problem of low color fastness, which greatly limits the application of natural dyes.

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

[0024] Process for the preparation of regenerated cellulose fibers containing madder

[0025] Step 1, the preparation of viscose spinning solution

[0026] The raw material is wood pulp with a polymerization degree of 500-600, and its cellulose content is greater than 90%. The glue is made according to the following process route: dipping, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming.

[0027] Gained viscose spinning liquid methyl fiber content is 9.0%, and NaOH mass fraction is 5.8%, and viscosity is (falling ball method) 60s, degree of maturity is (10%NH 4 Cl) 8.9 mL.

[0028] Step 2, the preparation of natural dye sol-gel powder dispersion system

[0029] In the reaction kettle, use distilled water to prepare sol-gel dispersion systems with mass fractions of 10%, 15%, and 20%. The component ratio of silicon ethanol, madder, and ethanol in the preparation of the sol-gel system is 10:5:85 , add glyceryl tristearate dispersant acco...

Embodiment 2

[0034] Preparation method of regenerated cellulose fiber containing comfrey

[0035] Step 1, the preparation of viscose spinning solution

[0036] The raw material is wood pulp with a polymerization degree of 500-600, and its cellulose content is greater than 90%. The glue is made according to the following process route: dipping, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming.

[0037] Gained viscose spinning liquid methyl fiber content is 9.0%, and NaOH mass fraction is 5.8%, and viscosity is (falling ball method) 60s, degree of maturity is (10%NH 4 Cl) 8.9 mL.

[0038] Step 2, the preparation of natural dye sol-gel powder dispersion system

[0039] In the reaction kettle, sol-gel dispersion systems with mass fractions of 10%, 15%, and 20% were prepared with distilled water. The component ratio of silicon ethanol, comfrey, and ethanol in the preparation of the sol-gel system was 10:5: 85. Add glyceryl tristearate dispersant account...

Embodiment 3

[0044] Preparation method of regenerated cellulose fiber containing malachite green

[0045] Step 1, the preparation of viscose spinning solution

[0046] The raw material is wood pulp with a polymerization degree of 500-600, and its cellulose content is greater than 90%. The glue is made according to the following process route: dipping, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming.

[0047] Gained viscose spinning liquid methyl fiber content is 9.0%, and NaOH mass fraction is 5.8%, and viscosity is (falling ball method) 60s, degree of maturity is (10%NH 4 Cl) 8.9 mL.

[0048] Step 2, the preparation of natural dye sol-gel powder dispersion system

[0049]In the reaction kettle, use distilled water to prepare sol-gel dispersion systems with mass fractions of 10%, 15%, and 20%. The component ratio of silicon ethanol, malachite green, and ethanol in the preparation of the sol-gel system is 10:5 : 85, add glyceryl tristearate dispers...

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 discloses a preparation method of regenerated cellulose fiber containing a natural dye. The method is characterized in that a natural dye sol-gel obtained by a sol-gel method is used forpreparing dispersion liquid, the dispersion liquid and viscose glue spinning liquid are subjected to wet-method spinning, and the regenerated cellulose fiber is prepared. The stock solution colored fiber has better color fastness and better hand feeling, and solves the problems of production and administration due to defective color fastness of the current natural dyes.

Description

technical field [0001] The invention relates to raw materials used in the textile industry and a manufacturing method thereof, in particular to a preparation method of regenerated cellulose fibers containing natural dyes. Background technique [0002] Natural dyes are mainly divided into three categories: natural plant dyes, natural animal dyes and natural mineral dyes. Natural plant dyes are mainly extracted from the roots, leaves, stems and fruits, bark and flowers of various plants, such as ginger, pomegranate, indigo, yellow gardenia, tea tree, mulberry, etc.; there are fewer types of natural animal dyes , generally extracted from cochineals and shellfish, such as carmine, shellac, cochineal, etc.; natural mineral dyes are colored inorganic substances extracted from various minerals, such as manganese brown, chromium Yellow, Ultramarine etc. [0003] In recent years, some chemical dyes contain toxic ingredients that can cause skin allergies, redness, inflammation, pus ...

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): D01F2/16
CPCD01F2/16
Inventor 毛军陈红霞陆鹏丁可敬
Owner JIANGSU GOLDSUN TEXTILE SCI & TECH
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