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Method for improving dyeing rate of flax blended fiber fabric

A blended fiber and dye uptake technology, applied in the field of dyeing and environmental protection, can solve problems such as insufficient color fastness, less flax fibers, and poor level dyeing, so as to improve dye uptake, surface affinity, and The effect of comprehensive utilization

Pending Publication Date: 2020-02-18
界首市苏澳纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low cellulose content of flax fiber and its special fiber shape structure, the dye uptake rate of dye molecules on the fabric is low, and there are problems of poor level dyeing and color fastness not meeting the requirements.

Method used

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  • Method for improving dyeing rate of flax blended fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for improving the dyeing rate of flax blended fiber fabrics, comprising preparation of dyeing accelerator, pretreatment before dyeing of flax blended fiber fabrics, dyeing process, air-drying and washing;

[0023] Specifically, the following process steps are included:

[0024] Dyeing accelerator preparation method: add 50 ml of sodium hydroxide aqueous solution to the beaker, add 14 g of saturated ferric chloride solution dropwise into the solution, heat up to 70°C under stirring, continue stirring for 30 minutes, let stand and cool for 60 minutes, and filter , washed three times successively with deionized water and absolute ethanol respectively, and ultrasonically mixed the obtained product with titanium dioxide sol with a mass concentration of 27%, the mixing mass ratio was 1:1.3, impregnated at 35°C for 2 hours, and transferred to vacuum drying Dry in an oven for 4 hours, then put it into a preheated tube furnace at 150°C, and under the protection of nitro...

Embodiment 2

[0029] A method for improving the dyeing rate of flax blended fiber fabrics, comprising preparation of dyeing accelerator, pretreatment before dyeing of flax blended fiber fabrics, dyeing process, air-drying and washing;

[0030] Specifically, the following process steps are included:

[0031]Dyeing accelerator preparation method: add 55 ml of sodium hydroxide aqueous solution to the beaker, add 15 g of saturated ferric chloride solution dropwise into the solution, heat up to 75°C under stirring, continue stirring for 35 minutes, let stand and cool for 70 minutes, and filter , washed three times successively with deionized water and absolute ethanol, and ultrasonically mixed the obtained product with titanium dioxide sol with a mass concentration of 28% at a mixing mass ratio of 1:1.4, impregnated at 38°C for 2.5 hours, and transferred to vacuum drying Dry it in the box for 4.5 hours, then put it into a preheated tube furnace at 165°C, under the protection of nitrogen, raise t...

Embodiment 3

[0036] A method for improving the dyeing rate of flax blended fiber fabrics, comprising preparation of dyeing accelerator, pretreatment before dyeing of flax blended fiber fabrics, dyeing process, air-drying and washing;

[0037] Specifically, the following process steps are included:

[0038] Preparation method of dyeing accelerator: add 60 ml of sodium hydroxide aqueous solution to the beaker, add 17 g of saturated ferric chloride solution dropwise into the solution, heat up to 80°C under stirring, continue stirring for 40 minutes, let stand and cool for 80 minutes, and filter , using deionized water and absolute ethanol to wash 4 times in sequence, and ultrasonically mix the obtained product with a titanium dioxide sol with a mass concentration of 30% at a mixing mass ratio of 1:1.5, impregnate at 40°C for 2-3 hours, and transfer to Dry it in a vacuum drying oven for 5 hours, and then put it into a tube furnace preheated at 180°C. Under the protection of nitrogen, raise the...

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Abstract

The invention relates to the technical field of dyeing and environmental protection, and discloses a method for improving the dyeing rate of a flax blended fiber fabric. Through the study of a fiber structure and a dyeing principle, the problems that in an existing process, flax blended fibers are adopted to process a fabric, the dyeing efficiency is low, dyeing is uneven and the cost is over highare solved, and the method comprises the steps of preparation of a dyeing accelerant, pretreatment before dyeing of the flax blended fiber fabric, dyeing process and air drying and washing. The prepared dyeing accelerant has a nano-scale titanium dioxide coating shell structure. The surface affinity of the flax fibers can be remarkably improved, and dye molecules can rapidly penetrate into the fibers. Diffusion and adsorption of the dye on the surface of a fiber fabric are promoted, and the dyeing is facilitated; the dyeing rate of the flax blended fiber fabric can be improved, and the dyed product is uniform in color and high in firmness; the application range of the flax fibers in the textile field is expanded; and by the process, the defects in the dyeing process of an existing flax blended fiber fabric can be overcome well.

Description

technical field [0001] The invention belongs to the technical field of dyeing and environmental protection, and in particular relates to a method for improving the dyeing rate of flax blended fiber fabrics. Background technique [0002] The development and utilization of flax is of high value. The fiber produced from flax stem is an important raw material for the textile industry, which can be spun purely or blended with other fibers. Compared with animal fibers, other plant fibers and synthetic fibers, flax fiber has many unique and irreplaceable advantages, which determines that it occupies an important position in the national economy. First of all, flax fiber is tough and soft, its strength is 1.5 times that of cotton fiber and 1.6 times that of spun silk. Secondly, flax fiber has unique advantages such as strong hygroscopicity, fast heat dissipation, friction resistance, high temperature resistance, non-flammability, non-cracking, low conductivity, low dust absorption ...

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): D06P1/673D06P1/38D06P3/85
CPCD06P1/67391D06P1/67383D06P1/67358D06P1/38D06P3/828D06P3/8219D06P3/8266
Inventor 栾俊
Owner 界首市苏澳纺织科技有限公司
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