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One-step dyeing method of porous cellulose microspheres-modified dyed cotton blended fabric

A technology of porous cellulose and cellulose microspheres, which is applied in the field of one-step dyeing of cotton blended fabrics, can solve the problems of difficult treatment, large sewage discharge, and increased friction frequency of fabrics, and achieve good uniformity of dyeing and high dyeing efficiency. The effect of high efficiency and large specific surface area

Active Publication Date: 2019-06-04
HUAIAN JIADE TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the cotton component in polyester-cotton blended fabrics can use direct dyes, reactive dyes, vat dyes, sulfur dyes, insoluble azo dyes, etc., polyester fibers can only use disperse dyes. Therefore, two-bath dyeing is usually used to make polyester fibers and cotton fibers Both obtain higher dye uptake rate and color fixation rate, but the processing time is long, the production efficiency is low, the energy consumption is high, the sewage discharge is large and the treatment is difficult, and there are many processing steps, which easily increase the friction frequency between fabrics. large, affecting the feel and quality of polyester-cotton blended fabrics, therefore, it is necessary to seek a simpler and more efficient polyester-cotton dyeing process

Method used

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  • One-step dyeing method of porous cellulose microspheres-modified dyed cotton blended fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Add cetyltrimethylammonium chloride to the sodium hydroxide solution and mix well to obtain an alkaline pretreatment solution. The content of sodium hydroxide in the alkaline pretreatment solution is 10%. The content of trimethylammonium chloride is 3%.

[0028] (2) The polyester-cotton blended fabric is immersed in an alkaline pretreatment solution, paddled at 35°C with a crease rate of 70%, washed and dried to obtain a pretreated polyester-cotton blended fabric.

[0029] (3) Add the cellulose fiber to the formic acid and hydrochloric acid mixture with a volume ratio of 2:1, heat and stir to dissolve at a frequency of 500r / min at 70°C for 4h, cool to room temperature, adjust the pH to neutral, and disperse In the aqueous solution, a 25 mg / mL methyl esterified cellulose crystallite solution was obtained.

[0030] (4) Drop the methyl esterified cellulose microcrystal solution into the acid regeneration solution, after solidification, take out the cellulose nano hydrogel sp...

Embodiment 2

[0034] (1) Add cetyltrimethylammonium chloride to the sodium hydroxide solution and mix well to obtain an alkaline pretreatment solution. The content of sodium hydroxide in the alkaline pretreatment solution is 15%. The content of trimethylammonium chloride is 5%.

[0035] (2) The polyester-cotton blended fabric is immersed in an alkaline pretreatment solution, paddled at 40°C with a crease rate of 75%, washed and dried to obtain a pretreated polyester-cotton blended fabric.

[0036] (3) Add the cellulose fiber to the formic acid and hydrochloric acid mixture with a volume ratio of 3:1, heat and stir to dissolve at 80°C at a frequency of 800r / min for 6h, cool to room temperature, adjust the pH value to neutral, and disperse In the aqueous solution, a 30 mg / mL methyl esterified cellulose crystallite solution was obtained.

[0037] (4) Drop the methyl esterified cellulose microcrystal solution into the acid regeneration solution, after solidification, take out the cellulose nano hydro...

Embodiment 3

[0041] (1) Add cetyltrimethylammonium chloride to the sodium hydroxide solution and mix well to obtain an alkaline pretreatment solution, wherein the content of sodium hydroxide in the alkaline pretreatment solution is 13%, hexadecane The content of trimethylammonium chloride is 4%.

[0042] (2) The polyester-cotton blended fabric is immersed in an alkaline pretreatment solution, paddled at 38°C with a crease rate of 72%, washed and dried to obtain a pretreated polyester-cotton blended fabric.

[0043] (3) Add the cellulose fiber to the formic acid and hydrochloric acid mixture with a volume ratio of 2.3:1, heat and stir to dissolve at a frequency of 600r / min at 75°C for 5h, cool to room temperature, adjust the pH to neutral, and disperse In the aqueous solution, 28 mg / mL of methyl esterified cellulose crystallite solution was obtained.

[0044] (4) Drop the methyl esterified cellulose microcrystal solution into the acid regeneration solution, after solidification, take out the cell...

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Abstract

The invention provides a one-step dyeing method of a porous cellulose microspheres-modified dyed cotton blended fabric. The one-step dyeing method comprises the steps of soaking a polyester-cotton blended fabric in an alkaline pretreating solution containing hexadecyl trimethyl ammonium chloride, and padding to obtain a pretreated polyester-cotton blended fabric; adding cellulose fibers into a formate mixed liquid, heating, stirring for dissolving, adjusting pH to neutrality, dispersing in an aqueous solution to obtain a methylated cellulose microcrystalline solution, dropwise adding into acidic regenerating solution, curing, taking out cellulose nano hydrogel spheres, lyophilizing to obtain porous cellulose microspheres, dispersing in a solution containing dimethylol dihydroxy ethylene urea resin, mixing, soaking the pretreated polyester-cotton blended fabric under vibrating, and washing repeatedly to obtain a cellulose microspheres-modified polyester-cotton blended fabric; soaking the cellulose microspheres-modified polyester-cotton blended fabric in a dye, heating for dyeing, taking out, drying, and baking to obtain the dyed polyester-cotton blended fabric.

Description

Technical field [0001] The invention belongs to the technical field of textile materials, and specifically relates to a one-step dyeing method of dyed cotton blended fabric modified by porous cellulose microspheres. Background technique [0002] Polyester-cotton blended fabric has the advantages of polyester and cotton. It not only has dimensional stability, easy washing and quick drying, good elasticity and abrasion resistance, but also low cost. It is a more widely used fabric in the textile field. Because the cotton component of polyester-cotton blended fabric can be used for direct dyes, reactive dyes, vat dyes, sulfur dyes, insoluble azo dyes, etc., polyester fibers can only be used with disperse dyes, so the two-bath method is usually used to dye polyester fibers and cotton fibers. Both have achieved high dye uptake and fixation rate, but the processing process is time-consuming, low production efficiency, good energy consumption, large sewage discharge and difficult treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/50D06P1/52D06P1/673D06P1/66D06P3/82D06P1/00D06P1/38D06P1/22
Inventor 林佳
Owner HUAIAN JIADE TEXTILE CO LTD
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