Dyeing and finishing method for improving dyeing performance of kapok fibers and dyed kapok fibers

A technology of kapok fiber and dyeing performance, which is applied in the field of dyed kapok fiber, can solve the problems of kapok fiber mechanical properties decline, fiber cavity crushing, etc., and achieve the effect of improving dyeing rate, reducing damage and good dyeing performance

Inactive Publication Date: 2016-06-22
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional pretreatment method is to use alkali treatment, but because the cell wall of the kapok fiber is thin, the alkali treatment will make the kapok fiber gradually flatten from the cylindrical cross section, and the fiber cavity will be crushed, resulting in the mechanical properties of the kapok fiber. declined

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 provides a kind of dyed kapok fiber, adopts following dyeing and finishing method to make:

[0042] Put the washed and dried kapok fiber into a plasma generator for plasma surface modification treatment, the air pressure of the plasma surface modification treatment is 1 atmosphere, and the treatment time is 45s to obtain the first modified kapok fiber.

[0043] Dissolve chitosan with a molecular weight of 45,000-55,000 and a degree of deacetylation of 85%-95% in isopropanol solution, place it in an ultrasonic cleaner and vibrate for 30 minutes, then add 2,3-epoxypropyl tris Methyl ammonium chloride was dried by suction filtration as a cationic modifier.

[0044] Chitosan quaternary ammonium salt was dissolved in 4% NaHCO 3 A modified solution is prepared in an aqueous solution, the mass concentration of chitosan quaternary ammonium salt in the modified solution is 0.5%, and the first modified kapok fiber is immersed in the modified solution to carry out gr...

Embodiment 2

[0047] Embodiment 2 provides a kind of dyed kapok fiber, adopts following dyeing and finishing method to make:

[0048] Put the washed and dried kapok fiber into a plasma generator for plasma surface modification treatment, the air pressure of the plasma surface modification treatment is 1 atmosphere, and the treatment time is 120s to obtain the first modified kapok fiber.

[0049] Dissolve chitosan with a molecular weight of 45,000-55,000 and a degree of deacetylation of 85%-95% in isopropanol solution, place it in an ultrasonic cleaner and vibrate for 90 minutes, then add 2,3-epoxypropyl tris Methyl ammonium chloride was dried by suction filtration as a cationic modifier.

[0050] Chitosan quaternary ammonium salt was dissolved in 4% NaHCO 3 A modified solution is prepared in an aqueous solution, the mass concentration of chitosan quaternary ammonium salt in the modified solution is 1.2%, and the first modified kapok fiber is immersed in the modified solution to carry out g...

Embodiment 3

[0053] Embodiment 3 provides a kind of dyed kapok fiber, adopts following dyeing and finishing method to make:

[0054] Put the washed and dried kapok fiber into QH350 normal temperature and pressure plasma generator for plasma surface modification treatment. The pressure is 1 atmosphere, the treatment time is 90s, and the first modified kapok fiber is obtained.

[0055] Dissolve chitosan with a molecular weight of 45,000-55,000 and a degree of deacetylation of 85%-95% in isopropanol solution, place it in an ultrasonic cleaner and vibrate for 60 minutes, then add 2,3-epoxypropyl Methyl ammonium chloride was dried by suction filtration as a cationic modifier.

[0056] Chitosan quaternary ammonium salt was dissolved in 4% NaHCO 3 A modified solution is prepared in an aqueous solution, the mass concentration of chitosan quaternary ammonium salt in the modified solution is 0.8%, and the first modified kapok fiber is immersed in the modified solution to carry out grafting and fin...

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PUM

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Abstract

The invention provides a dyeing and finishing method for improving dyeing performance of kapok fibers and relates to the technical field of textile dyeing and finishing.According to the dyeing and finishing method, firstly, plasma surface modification treatment is conducted on the kapok fibers, then chitosan quaternary ammonium salt is adopted for cationic modification treatment on the kapok fibers, and then dyeing is conducted.The dyeing and finishing method is simple in technology, use of chemicals is reduced, pollution is reduced, cost is low, damage to the kapok fibers is reduced, dyeing performance of the kapok fibers is improved, heat preservation, antibacterial performance and other good performance of fibers are maintained, and mechanical properties of the kapok fibers are not changed.The invention further provides dyed kapok fibers which are good in dyeing performance and mechanical property.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, and in particular to a dyeing and finishing method for improving the dyeing performance of kapok fiber and dyed kapok fiber. Background technique [0002] Kapok is a natural cellulose fiber. The appearance of kapok fiber mainly has three colors: white, yellow, and yellow-brown. The fiber length is about 8-32mm and the diameter is about 20-45μm; the longitudinal appearance is cylindrical and the surface is smooth; the middle section is thicker and has a unique thin-walled large hollow structure. Kapok fiber has some special physical and chemical properties, mainly as follows: kapok fiber has a hollowness as high as 80%-90%, which is the most ideal thermal insulation material; the linear density of kapok fiber is 0.4-0.7dtex, which is only 1 / of cotton fiber 2. It is the thinnest and lightest fiber among the current ecological fibers, and the surface of kapok fiber is smooth; ...

Claims

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Application Information

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IPC IPC(8): D06P3/66D06P1/38D06P1/44D06P1/48D06P1/673D06P5/10D06P5/20
CPCD06P1/38D06P1/445D06P1/48D06P1/6735D06P3/66D06P5/10D06P5/2016
Inventor 俞俭周天池高大伟王春霞
Owner YANCHENG INST OF TECH
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