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One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye

A technology of cationic dyes and acrylic cotton fabrics, applied in the field of acrylic cotton fabric dyeing, can solve the problems of low production efficiency, long process flow, large consumption of energy and dyeing materials, etc., and achieve improved performance, shortened process time, and good economy benefit effect

Active Publication Date: 2015-05-13
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In short, the main problems in the current printing and dyeing process of acrylic cotton blended or interwoven fabrics are low production efficiency, long process flow, and large consumption of energy and dyeing materials.

Method used

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  • One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye
  • One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye
  • One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Firstly, the acrylic-cotton blended fabric is pretreated, the temperature is 90°C, the time is 1h, the bath ratio is 1:10, the pretreatment liquid components are: soda ash 3g / L, hydrosulfite 0.5g / L, JFC 2g / L, Soap powder 2g / L.

[0044] Prepare dye solution (direct dye tinny red K-BE 2% o.w.f, Yuan Ming powder 10% o.w.f, leveling agent Pingpingjia O 2g / L, acetic acid 2.5% o.w.f, sodium acetate 1% o.w.f, pH value 4), heat up To 40°C, add acrylic cotton blended fabric sample (bath ratio 1:15), stir and dye for 5 minutes, heat up to 98°C at 1°C / min, stir and keep warm for 60 minutes, cool down to 65°C at 2°C / min, add cationic dye and dispersant (Astryla Chonghong GL-N3001% O.W.F, dispersant N 2g / L), heat up to 100°C at 1°C / min, stir and keep warm for dyeing for 60min, cool down to 65°C at 2°C / min, wash with water Color fixing (color fixing agent R-7551% owf, liquor ratio 1:10, 40°C treatment for 20 minutes), drying, and test performance (results are shown in Table 1).

[...

Embodiment 2

[0049] Firstly, the acrylic-cotton blended fabric is pretreated, the temperature is 90°C, the time is 1h, the liquor ratio is 1:10, the pretreatment solution components are: soda ash 3g / L, hydrosulfite 0.5g / L, JFC 2g / L, Soap powder 2g / L.

[0050] Prepare dye solution (direct dye Xilihuang K-2G 2% o.w.f, Yuanming powder 10% o.w.f, dispersant Pingping plus O2g / L, acetic acid 2.5% o.w.f, sodium acetate 1% o.w.f, pH value 4), heat up to 40 ℃, add acrylic cotton blended fabric sample (bath ratio 1:15), stir for 5 minutes, heat up to 98°C at 1°C / min, stir and keep warm for 60 minutes, cool down to 65°C at 2°C / min, add cationic dyes and disperse (Astryla Golden GL-E2001% o.w.f, dispersant N 2g / L), heat up to 100°C at 1°C / min, stir and keep warm for dyeing for 60min, cool down to 65°C at 2°C / min, wash and fix the color ( Color-fixing agent R-7551%owf, bath ratio 1:10, 20min at 40°C), drying, test performance (results are shown in Table 2).

[0051] Table 2

[0052]

[0053] (The...

Embodiment 3

[0055] Firstly, the acrylic-cotton blended fabric is pretreated, the temperature is 90°C, the time is 1h, the liquor ratio is 1:10, the pretreatment solution components are: soda ash 3g / L, hydrosulfite 0.5g / L, JFC 2g / L, Soap powder 2g / L.

[0056] Prepare dye solution (direct dye Ceylon blue K-BE 2% o.w.f, Yuanming powder 10% o.w.f, dispersant Pingpingjiao 2g / L, acetic acid 2.5% o.w.f, sodium acetate 1% o.w.f, pH value 4), heat up to 40°C, add acrylic cotton blended fabric sample (bath ratio 1:15), stir and dye for 5 minutes, heat up to 98°C at 1°C / min, stir and keep warm for 60 minutes, cool down to 65°C at 2°C / min, add cationic dyes and Dispersant (Astryla Chonglan GRL3001% o.w.f, dispersant N 2g / L), heat up to 100°C at 1°C / min, stir and keep warm for dyeing for 60min, cool down to 65°C at 2°C / min, wash and fix the color ( Fixing agent R-7551%owf, liquor ratio 1:10, 40°C treatment for 20min), drying, test performance (results are shown in Table 3).

[0057] table 3

[0058...

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Abstract

The invention relates to a one-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye. The method comprises steps as follows: first, dye liquor is prepared and then heated to reach 40 DEG C, the cotton-acrylic fabric is added into the dye liquor, the bath ratio is 1:(10-15), stirring and dyeing are performed for 2-10 min, then the temperature is raised to 95-98 DEG C, stirring and dyeing under heat preservation condition are continuously performed for 60 min, the temperature is reduced to 65-70 DEG C, a dispersant and cationic dye are added, the temperature is raised to 100 DEG C at the rate of 1-1.5 DEG C per minute, stirring and dyeing under heat preservation condition are performed for 45-60 min, then the temperature is reduced to 65-70 DEG C at the rate of 2-5 DEG C per minute, and finally, the cotton-acrylic fabric is dried after washing and color fixing treatment. The technical scheme has simple process, is convenient to operate and has no special requirements for equipment, large-scale production can be performed through conventional dyeing equipment, and the one-bath dyeing method has wide application prospect.

Description

technical field [0001] The invention belongs to the field of acrylic cotton fabric dyeing methods, in particular to a same-bath dyeing method for acrylic cotton fabrics dyed with direct dyes and cationic dyes. Background technique [0002] Cotton fiber, as a natural cellulose fiber, is widely used in production and life due to its good water absorption, hygroscopicity, easy dyeing, soft hand feeling, moderate strength, and comfortable wearing. Acrylic fiber is the domestic product name of polyacrylonitrile fiber. It has many excellent properties, such as soft fiber, good heat retention, excellent light resistance and radiation resistance, and can be widely used to replace wool to make bulky wool, acrylic blanket, acrylic fiber Carpet, known as "synthetic wool". In addition, it can also be blended with cotton, rayon, and other synthetic fibers to be woven into various clothing and interior products. Acrylic fiber and its blended fabrics have the advantages of good elasticit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/87D06P1/41D06P1/00D06P1/673D06P1/653D06P1/62D06P1/613D06P5/02
Inventor 蔡再生朱航悦汪冉李恩生戴更更俞灏化丹丹董慧芬
Owner DONGHUA UNIV
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