CN104264511A

CN104264511A - Dyeing method of cellulose cotton fabric

Info

Publication number: CN104264511A
Application number: CN201410410003.2A
Authority: CN
Inventors: 黄和芳; 秦彩娟; 黄云涛; 张海萍; 张祖洪; 陆引
Original assignee: ZHANGJIAGANG DAXIN WOOL SPINNING CO Ltd
Current assignee: ZHANGJIAGANG DAXIN WOOL SPINNING CO Ltd
Priority date: 2014-08-20
Filing date: 2014-08-20
Publication date: 2015-01-07

Abstract

The invention discloses a dyeing method of a cellulose cotton fabric. The dyeing method comprises the following steps of 1, immersing a cotton knitted fabric in a cationic modifier aqueous solution at a room temperature, and carrying out rolling, cold stacking, full water washing and drying to obtain a modified cellulose cotton fabric, and 2, dissolving a reactive dye in a glycol aqueous solution, adjusting pH by sodium bicarbonate, adding the modified cellulose cotton fabric into the solution, carrying out heating to a dyeing temperature of 60-90 DEG C, carrying out thermal insulation for 30-60min, adjusting a temperature to 40-70 DEG C, adding a fixing agent into the solution, carrying out thermal insulation for 30-60min, taking out the fabric, and carrying out water washing, soaping and water washing to obtain the cellulose cotton fabric finished product. The dyeing method realizes cellulose cotton fabric modification at first. Compared with the traditional dyeing method, the dyeing method realizes salt-free low-alkali dyeing, improves dye uptake and a color fixing rate, has good level-dyeing property and has effects of reducing environmental pollution and a production cost.

Description

A kind of colouring method of cellulose cotton fabric

Technical field

The present invention relates to a kind of dyeing, particularly relate to a kind of colouring method of cellulose cotton fabric.

Background technology

The advantages such as cellulose fibre is the textile fabric that output is maximum in the world, and wherein, cotton fiber is as native cellulose fibre, owing to having good water imbibition, hygroscopicity, easy dyeing, soft, intensity appropriateness, comfortable and easy to wear, are widely used in life.Cellulose fibre is electronegative in dye bath, and the dyestuff of great majority dye cotton fiber is anionic property, due to electrostatic repulsion, the upper dye of dyestuff is suppressed, for reducing electrostatic repulsion, need in dye bath to add a large amount of neutral electrolyte to improve the difference of dyestuff dye-uptake according to dye structure, color, salt dosage is generally 30 ~ 150g/L.Nonetheless, the dye-uptake of dyestuff and degree of fixation are still lower, especially REACTIVE DYES.Which not only adds production cost, and a large amount of discharge containing hydrolised dye and electrolytical dyeing waste-water, bring great pollution to environment.

Summary of the invention

Technical problem to be solved by this invention is: provide one to have technique simple, industrializing implementation is easy, dyestuff dye-uptake and degree of fixation is high, good level-dyeing property, avoids the REACTIVE DYES cosolvent decoration method of the cellulose cotton fabric using the features such as the chemical substance expensive, toxicity is larger.

For solving the problems of the technologies described above, the technical solution used in the present invention is: the colouring method providing a kind of cellulose cotton fabric, and dyeing step is:

1) be soaked in the aqueous solution of cation modifier by cotton fabrics at ambient temperature, soak 5 ~ 6h, then clot, cold dome 10 ~ 12h, fully washing, oven dry, obtain modified cellulose COTTON FABRIC;

Wherein, soaking bath is than being 0.25:2 ~ 0.5:1; The mass volume ratio of cation modifier and the aqueous solution is 3 ~ 6g:1L;

2) REACTIVE DYES is dissolved in glycol water, adjusts pH=8 ~ 9 with sodium bicarbonate, obtain the cosolvent solution of basic-dyeable fibre; Add modified cellulose COTTON FABRIC, be warming up to dyeing temperature 60-90 DEG C and be incubated 30-60min, after adjust the temperature to 40 ~ 70 DEG C, add color-fixing agent, insulation 30-60min, takes out fabric, through washing, soaping, wash, obtain dyeing of cellulosic fabric finished product, finally carry out the recovery of solvent;

Wherein the mass volume ratio of REACTIVE DYES and ethylene glycol is 60 ~ 150g:1L, and the dye bath ratio of COTTON FABRIC is 1:5 ~ 3:1; The mass volume ratio of color-fixing agent and former dye liquor is 2 ~ 10g:1L.

Described REACTIVE DYES is C.I. active yellow 1, C.I. active yellow 2, C.I. active yellow 3, C.I. active yellow 4, C.I. active yellow 14, C.I. active yellow 17, C.I. REACTIVE YELLOW 18, C.I. active yellow 35, C.I. active yellow 57, C.I. active yellow 81, C.I. active yellow 84 or C.I. active yellow 86.

Described cation modifier is produced by Shaoxing Wei Qin textile auxiliary Co., Ltd.

Described is warming up to dyeing temperature with heating rate 1 ~ 3 DEG C/min; Be that 0.5 ~ 2 DEG C/min is down to color fixing temperature with rate of temperature fall.

Described method for recovering solvents is: decompression or air-distillation condensation method, or organic vapor adsorption recovery system reclaims organic.

In described glycol water, the content of ethylene glycol is 35 ~ 50%.

Beneficial effect: cellulose cotton fabric is first carried out modification by the present invention, compared with conventional coloring method, salt-free low alkali dyeing can be realized, improve dye-uptake and the degree of fixation of dyestuff, and there is good level-dyeing property, thus there is the effect reducing environmental pollution and reduce production cost.

Detailed description of the invention

Embodiment 1

Be dissolved in the 1L aqueous solution by 3g cation modifier at ambient temperature, add 125g cotton fabrics, after soaking 5h, clot, cold dome 10h, then fully wash, dry, and obtains modified cellulose COTTON FABRIC.

42g C.I. active yellow 1 is dissolved in 600ml40% glycol water, adjusts pH to 8 with sodium bicarbonate, obtain the cosolvent solution of basic-dyeable fibre.Add 120g modified cellulose COTTON FABRIC, be warming up to dyeing temperature 60 DEG C and be incubated 50min, latter near 40 DEG C, add 2.4g color-fixing agent, insulation 30min, takes out fabric, through washing, soaping, wash, obtain dyeing of cellulosic fabric finished product, finally carry out the recovery of solvent.Cotton fabric dyeing process finished product.Dyestuff dye-uptake can reach 96%, and degree of fixation is 79%.

Embodiment 2

Be dissolved in the 1L aqueous solution by 5g cation modifier at ambient temperature, add 200g cotton fabrics, after soaking 5h, clot, cold dome 10h, then fully wash, dry, and obtains modified cellulose COTTON FABRIC.

90g C.I. REACTIVE YELLOW 18 is dissolved in 1L40% glycol water, adjusts pH to 8 with sodium bicarbonate, obtain the cosolvent solution of basic-dyeable fibre.Add 200g modified cellulose COTTON FABRIC, be warming up to dyeing temperature 65 DEG C and be incubated 50min, latter near 40 DEG C, add 5g color-fixing agent, insulation 30min, takes out fabric, through washing, soaping, wash, obtain dyeing of cellulosic fabric finished product, finally carry out the recovery of solvent.Cotton fabric dyeing process finished product.Dyestuff dye-uptake can reach 97.2%, and degree of fixation is 80.3%.

Claims

1. a colouring method for cellulose cotton fabric, dyeing step is:

2. the colouring method of a kind of cellulose cotton fabric according to claim 1, is characterized in that: described REACTIVE DYES is C.I. active yellow 1, C.I. active yellow 2, C.I. active yellow 3, C.I. active yellow 4, C.I. active yellow 14, C.I. active yellow 17, C.I. REACTIVE YELLOW 18, C.I. active yellow 35, C.I. active yellow 57, C.I. active yellow 81, C.I. active yellow 84 or C.I. active yellow 86.

3. the colouring method of a kind of cellulose cotton fabric according to claim 1, is characterized in that: described cation modifier is produced by Shaoxing Wei Qin textile auxiliary Co., Ltd.

4. the colouring method of a kind of cellulose cotton fabric according to claim 1, is characterized in that: described is warming up to dyeing temperature with heating rate 1 ~ 3 DEG C/min; Be that 0.5 ~ 2 DEG C/min is down to color fixing temperature with rate of temperature fall.

5. the colouring method of a kind of cellulose cotton fabric according to claim 1, is characterized in that: described method for recovering solvents is: decompression or air-distillation condensation method, or organic vapor adsorption recovery system reclaims organic.

6. the colouring method of a kind of cellulose cotton fabric according to claim 1, is characterized in that: in described glycol water, the content of ethylene glycol is 35 ~ 50%.