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Printing and dyeing method for cotton fabric

A cotton fabric and dyeing solution technology, applied in the field of printing and dyeing, can solve the problems of poor light fastness, damaged cotton fabric structure, low dyeing rate, etc. Effect

Active Publication Date: 2017-06-13
绍兴百丽恒印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cotton fabric is easy to dye, but it is prone to color difference and poor color fastness, especially the light fastness is extremely poor
In order to improve the above shortcomings, there are pretreatment or carrier dyeing methods for cotton fabrics in the prior art, but there are still problems such as relatively low dyeing rate and poor color fastness.
In addition, there are many kinds of raw materials used in pretreatment, such as liquid caustic soda, scouring agent M-108A, green chelating dispersant M-175, oxygen bleaching stabilizer M-1021, etc. Not only the residues are harmful to the human body, but also destroy the cotton fabric. construction, reduced service life

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

[0017] In an embodiment of the present invention, a cotton fabric printing and dyeing method includes pretreatment→water washing→drying→dying→water washing→drying.

[0018] The pretreatment is to put the cotton fabric in a solution of 10g / L and 25g / L of methyl salicylate and 25g / L respectively for 15min, and the pretreatment temperature is 30℃.

[0019] When dyeing, the dye solution formula: Mexilon red 52wt%, sodium nitrate 2wt%, the balance is water, dyeing conditions: pH=4 (adjusted with acetic acid), temperature 120℃, time 50 minutes, bath ratio 1:20 .

[0020] Add 6wt% dodecaamine polyoxyethylene ether, 0.5wt% titanium dioxide, 3wt% ethyl oxalate and 1wt% phenylpropanol into the dye liquor; among them, dodecylamine polyoxyethylene ether, titanium dioxide, Before adding ethyl oxalate and phenylpropanol to the dye solution, they need to be mixed and ultrasonicated for 28 minutes; the ultrasonic power is 1000W.

[0021] After dyeing, K / S value=35, wet rubbing fastness level 4, dry ...

Embodiment 2

[0023] In an embodiment of the present invention, a cotton fabric printing and dyeing method includes pretreatment→water washing→drying→dying→water washing→drying.

[0024] The pretreatment is to put the cotton fabric in a solution of 15g / L and 30g / L of methyl salicylate and 30g / L respectively for 15min, and the pretreatment temperature is 38℃.

[0025] When dyeing, the dye solution formula: Mexilon red 52wt%, sodium nitrate 2wt%, the balance is water, dyeing conditions: pH=4 (adjusted with acetic acid), temperature 120℃, time 50 minutes, bath ratio 1:20 .

[0026] Add 10wt% of dodecylamine polyoxyethylene ether, 2wt% of titanium dioxide, 7wt% of ethyl oxalate and 3wt% of phenylpropanol into the dye liquor; among them, dodecylamine polyoxyethylene, titanium dioxide, oxalic acid Before adding the ethyl ester and phenylpropanol to the dye solution, they need to be mixed and then sonicated for 28min; the ultrasonic power is 1000W.

[0027] After dyeing, K / S value=36, wet rubbing fastnes...

Embodiment 3

[0029] In an embodiment of the present invention, a cotton fabric printing and dyeing method includes pretreatment→water washing→drying→dying→water washing→drying.

[0030] The pretreatment is to put the cotton fabric in a solution of 12g / L and 28g / L of methyl salicylate and 28g / L respectively for 15min, and the pretreatment temperature is 35℃.

[0031] When dyeing, the dye solution formula: Mexilon red 52wt%, sodium nitrate 2wt%, the balance is water, dyeing conditions: pH=4 (adjusted with acetic acid), temperature 120℃, time 50 minutes, bath ratio 1:20 .

[0032] Add 7wt% dodecaamine polyoxyethylene ether, 1wt% titanium dioxide, 4wt% ethyl oxalate and 1.5wt% phenylpropanol into the dye liquor; among them, dodecylamine polyoxyethylene ether, titanium dioxide, Before adding ethyl oxalate and phenylpropanol to the dye solution, they need to be mixed and ultrasonicated for 28 minutes; the ultrasonic power is 1000W.

[0033] After dyeing, K / S value = 39, wet rubbing fastness level 5, dr...

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 discloses a printing and dyeing method for cotton fabric. The printing and dyeing method includes the steps of dyeing, washing and drying. Before dyeing, methyl salicylate and hydrogen peroxide are adopted for pretreating the cotton fabric. During dyeing, dodecylamine polyoxyethylene ether accounting for 6-10 wt% of the mass of dye liquor, titanium dioxide accounting for 0.5-2 wt% of the mass of the dye liquor, ethyl oxalate accounting for 3-7 wt% of the mass of the dye liquor and phenylpropanol accounting for 1-3 wt% of the mass of the dye liquor are added into the dye liquor. According to pretreatment, the cotton fabric is put in a solution with the concentration of methyl salicylate being 10-15 g / L and the concentration of hydrogen peroxide being 25-30 g / L for 15 min. Dodecylamine polyoxyethylene ether, titanium dioxide, ethyl oxalate and phenylpropanol need to be firstly mixed before the dye liquor is added, and then the mixture is subjected to ultrasonic treatment for 28 min. The dye uptake of dyestuff during dyeing of the cotton fabric can be obviously increased, wet friction firmness, dry friction firmness and illumination firmness are all remarkably improved, and the structure of the cotton fabric is not changed. The printing and dyeing method is simple in process, convenient to treat, remarkable in effect and suitable for large-scale application and popularization.

Description

Technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a method for printing and dyeing cotton fabrics. Background technique [0002] Cotton fabric, also known as cotton cloth, is a fabric woven from cotton yarn. Cotton fabric has become one of the most commonly used fabrics with excellent wearability, and is widely used in clothing fabrics, decorative fabrics and industrial fabrics. Cotton is the most popular clothing and home textile. Cotton fabric has strong water absorption, abrasion resistance and washability, soft and comfortable, good warmth in winter, breathable and cool in summer, cotton fabric has become one of the most commonly used children's clothing materials due to its excellent wearing performance, and is the most popular children's clothing fabric. Cotton fabrics are easy to dye, but they are prone to chromatic aberration and poor color fastness, especially light fastness. In order to improve the above-ment...

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 Applications(China)
IPC IPC(8): D06P3/60D06P1/44D06P1/651D06P1/673D06P1/607D06L4/13
CPCD06P1/445D06P1/6076D06P1/65118D06P1/65125D06P1/673D06P3/60
Inventor 不公告发明人
Owner 绍兴百丽恒印染有限公司
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