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Dyeing pretreatment process for linen-cotton blended fabric

A technology of pre-dyeing and blended fabrics, which is applied in the field of pre-dyeing processing, can solve the problems of insufficient fiber separation, deep fabric background color, poor spinnability, etc., and achieve the effect of improving color fastness and color brilliance

Inactive Publication Date: 2013-03-06
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, flax is a bundle of fibers and has many impurities, so the spinnability and wrinkle resistance of flax are poor, and because flax has more impurities (especially hemp skin), the background color of the fabric after mercerizing is very deep.
The disadvantages of traditional flax fiber are that the degree of fiber separation is not enough, the fiber has high rigidity, poor elasticity, poor spinnability, more impurities in spun yarn and woven fabric, poor dyeing performance, and great limitations in dyeing.

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Step 1: Soak 12*12 / 48*46 (55%L / 45%C) flax-cotton blended fabric in an extraction solution with a temperature of 85°C for 25 minutes, and the concentration of the extraction solution is 1 g / L respectively of acetic acid (CH 3 COOH, PH=5), 2 g / L dispersant (SN-S) and ionized water.

[0014] Step 2, soaking the blended fabric in a caustic soda solution with a temperature of 100°C for 60 minutes, the caustic soda solution is composed of 2 g / L refining agent (TF-125C), 2 g / L caustic soda (NaOH), 3 g / L hydrogen peroxide (H 2 o 2 ) and ionized water.

[0015] Step 3. Soak the blended fabric in an acetic acid solution with a temperature of 50° C. for 15 minutes. The acetic acid solution is composed of 1 g / L acetic acid (CH 3 COOH), 2 g / L deoxygenase (MD) and ionized water.

[0016] Step 4, soaking the blended fabric in a soda ash solution with a temperature of 85° C. for 30 minutes, the soda ash solution is composed of sodium hydrosulfite (Na 2 S 2 o 4 ), 8 g / L of soda ...

Embodiment 2

[0018] Step 1. Soak 8*8 / 42*38 (55%L / 45%C) flax-cotton blended fabric in an extraction solution with a temperature of 95°C for 20 minutes, and the concentration of the extraction solution is 3 g / L of acetic acid (CH 3 COOH, PH=5), 2 g / L dispersant (SN-S) and ionized water.

[0019] Step 2. Soak the blended fabric in a caustic soda solution with a temperature of 90° C. for 60 minutes. The caustic soda solution is composed of a refining agent (TF-125C) with a concentration of 1 g / L and a caustic soda with a concentration of 3 g / L. (NaOH), 1 g / L of hydrogen peroxide (H 2 o 2 ) and ionized water.

[0020] Step 3. Soak the blended fabric in an acetic acid solution with a temperature of 55° C. for 10 minutes, and the acetic acid solution is composed of 3 g / L acetic acid (CH 3 COOH), 1 g / L deoxygenase (MD) and ionized water.

[0021] Step 4, soaking the blended fabric in a soda ash solution with a temperature of 80° C. for 30 minutes, the soda ash solution is composed of 12 grams...

Embodiment 3

[0023] Step 1. Soak 20*20 / 60*58 (55%L / 45%C) flax-cotton blended fabric in an extraction solution with a temperature of 80°C for 20 minutes, and the concentration of the extraction solution is 2 g / L of acetic acid (CH 3 COOH, PH=5), 2 g / L dispersant (SN-S) and ionized water.

[0024] Step 2. Soak the blended fabric in a caustic soda solution with a temperature of 100° C. for 60 minutes. The caustic soda solution is composed of 3 g / L refining agent (TF-125C), 1 g / L caustic soda (NaOH), 3 g / L hydrogen peroxide (H 2 o 2 ) and ionized water.

[0025] Step 3. Soak the blended fabric in an acetic acid solution with a temperature of 55° C. for 15 minutes. The acetic acid solution is composed of 3 g / L acetic acid (CH 3 COOH), 1 g / L deoxygenase (MD) and ionized water.

[0026] Step 4, soaking the blended fabric in a soda ash solution with a temperature of 80° C. for 30 minutes, the soda ash solution is composed of 6 g / liter of hydrosulfite (Na 2 S 2 o 4 ), 6 g / L of soda ash (Na ...

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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Abstract

The invention provides a dyeing pretreatment process for linen-cotton blended fabric, which is characterized by comprising the following steps: 1, soaking the linen-cotton blended fabric in extraction solution at a temperature between 80 and 95 DEG C for 20 to 25 minutes; 2, soaking the blended fabric treated in a step 1 in caustic soda solution at a temperature between 90 and 100 DEG C for 60 minutes; 3, soaking the blended fabric treated in a step 2 in acetate solution at a temperature between 50 and 55 DEG C for 10 to 15 minutes; and 4, soaking the blended fabric treated in a step 3 in soda solution at a temperature between 80 and 85 DEG C for 30 minutes. The process has the advantage that the linen-cotton blended fabric subjected to the pretreatment is significantly improved in dyeing affinity, color fastness and color vividness and can be widely applied to every aspect of textile fabric.

Description

[0001] technical scope [0002] The invention relates to a pre-dyeing process of flax-cotton blended fabrics in the textile field. Background technique [0003] Flax fiber has won the reputation of "fiber queen" because of its advantages of moisture absorption, crispness, coolness, high fiber strength, resistance to strong chemical action and natural fiber is harmless to human body. Compared with other fabrics, linen clothing can reduce the sweating of the human body, absorb water several times faster than cotton cloth, and can reduce the human body's room temperature by 4 to 8°C at room temperature, known as "natural air conditioner". Therefore, linen fabric is deeply favored by people. However, flax is a bunch of fibers and has many impurities, so the spinnability and wrinkle resistance of flax are poor, and because flax has more impurities (especially hemp skin), the background color of the fabric after mercerizing is very deep. The disadvantages of traditional flax fiber...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/38D06M13/188D06M11/76D06M11/50D06M16/00D06M101/06
Inventor 金光明徐永康陈光杰程隆棣余燕平张瑞寅
Owner DONGHUA UNIV
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