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Cation modified dyeing method of ceiba fiber textiles

A cationic modifier and kapok fiber technology, which can be used in dyeing, textile and papermaking, fiber treatment, etc., can solve the problems of weak binding force and poor fastness, improve binding force, reduce salt consumption, and improve dyeing rate effect

Inactive Publication Date: 2010-10-20
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adsorption-type cationic modifier is a kind of polycationic compound and polyamine compound, which can be directly adsorbed on the fiber. This kind of cationic modifier has weak binding force with the fabric, poor fastness after treatment, and is rarely used in practice.

Method used

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  • Cation modified dyeing method of ceiba fiber textiles
  • Cation modified dyeing method of ceiba fiber textiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A cationic modified dyeing method for kapok fiber textiles. The method includes three steps of pretreatment, cationic modification and dyeing.

[0025] (1) Kapok fiber textile pretreatment:

[0026] Kapok → alkali treatment → washing → drying → hydrogen peroxide bleaching treatment → washing → drying.

[0027] Among them, kapok fiber textiles use kapok loose fiber, and the alkali treatment solution and hydrogen peroxide bleaching treatment solution use water as the solvent, and the components are as follows:

[0028] a. Alkaline treatment solution: sodium hydroxide, 10g / L; penetrant JFC, 1g / L; flat addition of O, 1g / L; sodium silicate, 2g / L; bath ratio, 1:30.

[0029] b. Hydrogen peroxide bleaching solution: 30% hydrogen peroxide, 20g / L; oxygen bleaching stabilizer sodium silicate, 1g / L; adjust the pH value to 10.5-11 with sodium hydroxide; bath ratio, 1:30.

[0030] Specific operation:

[0031] The kapok loose fiber is immersed in an alkali treatment solution, treated at 100°C for...

Embodiment 2

[0043] A cationic modified dyeing method for kapok fiber textiles. The method includes three steps of pretreatment, cationic modification and dyeing.

[0044] The first two steps are the same as in Example 1, and the third step is dyed with reactive dyes.

[0045] Reactive dye dyeing→washing→drying.

[0046] Reactive dye dyeing solution: reactive dye (Ciba FN-R), 1% (o.w.f); penetrant JFC, 2g / L; electrolyte sodium chloride, 20g / l; bath ratio, 1:50.

[0047] Specific operation:

[0048] Shake the reactive dye solution for 10 minutes at 60℃, then take the kapok fiber after quantitative pretreatment, immerse it in the dye solution, dye it at 60℃ for 30min, test the dye uptake rate, and add alkali sodium carbonate (10g / L), fix the color at 60℃ for 60min, and test the dye uptake, take it out, wash with water, and dry.

Embodiment 3

[0060] A cationic modified dyeing method for kapok fiber textiles, the method includes the following steps:

[0061] (1) Put the kapok fiber textile in a caustic soda solution added with surfactant and sodium silicate, control the temperature at 95 ℃ for alkali treatment for 3 hours and wash and dry, and then soak the alkali-treated textile in the bleach solution Carry out bleaching treatment and water washing and drying to remove the wax and impurities on the surface of the kapok fiber and bleach the kapok fiber;

[0062] (2) Immerse the kapok fiber textile treated in step (1) into the cationic modifier solution added with penetrant, adjust the pH to 6, the bath ratio 1:10, and the control temperature to 20°C. Carry out cationization modification treatment for 90 minutes;

[0063] (3) Control the temperature to 90℃, shake the anionic dye solution for 10 minutes, then put the cationized modified kapok fiber textile in the anionic dye, dye it for 60 minutes, take it out after dyeing,...

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Abstract

The invention relates to a cation modified dyeing method of ceiba fiber textiles, which comprises the following steps: immerging the ceiba fiber textiles into a cation modifying agent solution after alkali treatment and bleaching; carrying out cationization modifying treatment for 20 to 60 min; carrying out water washing and baking; then, carrying out dyeing treatment by anionic dyestuff; and next, obtaining products through water washing and baking. Compared with the prior art, the invention adopts the cation modified ceiba fiber method so that the fiber modified by cations has positive charges, the bonding force of anionic dyestuff and the fiber is enhanced through the effect of Coulomb attraction, and the adsorption on dyestuff anions is enhanced. Thereby, the invention improves the dye uptake of the dyestuff, shortens the dyeing time, and saves water and auxiliary agents, and in addition, the salt consumption can be reduced, or even the salt-free dyeing can be realized. In addition, both the water washing fastness and the light fastness of dyeing textiles are improved.

Description

Technical field [0001] The invention relates to a modified dyeing method, in particular to a cationic modified dyeing method of kapok fiber textiles. Background technique [0002] Kapok fiber is the fruit fiber of the woody plant Kapok tree. It is attached to the inner wall of the shell of the kapok capsule and developed and grown from the inner wall cells. The kapok fiber has a small adhesion force to the fruit, so there is generally no need for special preliminary processing equipment. Only the basket is sieved and the kapok seeds can sink to the bottom by themselves to obtain kapok fiber. Kapok fiber has many natural characteristics such as green ecology, hollow and ultra-light, good warmth retention, natural antibacterial, moisture absorption and moisture conductivity. However, kapok fiber is difficult to spin alone due to its short length, low strength, poor cohesion and lack of elasticity. These shortcomings restrict its application and development in textiles and clothing...

Claims

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Application Information

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IPC IPC(8): D06P3/62D06P3/66D06P3/60D06M11/38D06M11/79D06M13/46D06M13/385D06M15/356D06M13/35D06M15/61D06L3/02D06L3/06D06L3/08D06M101/06D06L4/12D06L4/13D06L4/23D06L4/24
Inventor 沈勇丁颖张慧芳王黎明周晓英祝青青
Owner SHANGHAI UNIV OF ENG SCI
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