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 m

Method used

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  • Method for improving dyeing rate of flax blended fiber fabric

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Example Embodiment

[0021] Example 1

[0022] A method for improving the dye uptake rate of flax blended fiber fabric, including dyeing promoter preparation, pretreatment before dyeing of flax blended fiber fabric, dyeing process, air drying and washing;

[0023] Specifically, it includes the following process steps:

[0024] Dyeing promoter preparation method: add 50 ml of sodium hydroxide aqueous solution to the beaker, add 14 g of saturated ferric chloride solution dropwise to the solution, heat up to 70°C with stirring, continue stirring for 30 minutes, leave to cool for 60 minutes, and filter ,Use deionized water and absolute ethanol to wash 3 times respectively, ultrasonically mix the resulting product with 27% titania sol with a mass concentration of 1:1.3, immerse at 35°C for 2 hours, and transfer to vacuum drying Dry in a box for 4 hours, and then send it to a tube furnace preheated at 150°C. Under the protection of nitrogen, the temperature is raised to 500°C at a rate of 2.5°C / min. The tempe...

Example Embodiment

[0028] Example 2

[0029] A method for improving the dye uptake rate of flax blended fiber fabric, including dyeing promoter preparation, pretreatment before dyeing of flax blended fiber fabric, dyeing process, air drying and washing;

[0030] Specifically, it includes the following process steps:

[0031] Dyeing promoter preparation method: add 55 ml of sodium hydroxide aqueous solution into the beaker, add 15 g of saturated ferric chloride solution dropwise to the solution, heat up to 75°C with stirring, continue stirring for 35 minutes, leave to cool for 70 minutes, and filter ,Use deionized water and absolute ethanol to wash 3 times respectively, ultrasonically mix the obtained product with 28% TiO2 sol with a mass concentration of 1:1.4, immerse at 38°C for 2.5 hours, and transfer to vacuum drying Dry in the box for 4.5 hours, and then send it to a tube furnace preheated at 165°C. Under the protection of nitrogen, the temperature is raised to 510°C at a rate of 2.8°C / min. The t...

Example Embodiment

[0035] Example 3

[0036] A method for improving the dye uptake rate of flax blended fiber fabric, including dyeing promoter preparation, pretreatment before dyeing of flax blended fiber fabric, dyeing process, air drying and washing;

[0037] Specifically, it includes the following process steps:

[0038] Dyeing promoter preparation method: Add 60 ml of sodium hydroxide aqueous solution to the beaker, add 17 g of saturated ferric chloride solution dropwise to the solution, heat up to 80°C with stirring, continue stirring for 40 minutes, leave to cool for 80 minutes, and filter ,Use deionized water and absolute ethanol to wash 4 times respectively, ultrasonically mix the resulting product with 30% titania sol with a mass concentration of 1:1.5, immerse at 40℃ for 2-3 hours, and transfer to Dry in a vacuum drying oven for 5 hours, and then send it to a tube furnace preheated at 180°C. Under the protection of nitrogen, the temperature is raised to 520°C at a rate of 3.0°C / min. The tem...

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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

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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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