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Dyeing and finishing method of pure cotton fabric and its application

A processing method and fabric technology, applied in dyeing, dry-cleaning fiber products, plant fibers, etc., can solve the problems of poor hand feeling of fabrics, low efficiency of sand washing process, high cost, etc., achieve good alkali resistance, improve color fastness, soft touch effect

Active Publication Date: 2020-12-18
新乡橄榄枝纺织化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The third purpose of the present invention is to provide an application of the dyeing and finishing method for pure cotton fabrics in the preparation of distressed fabrics, so as to improve the existing sand washing process in the preparation of distressed fabrics with low efficiency, high cost, The resulting fabric feels poor, etc.

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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  • Dyeing and finishing method of pure cotton fabric and its application
  • Dyeing and finishing method of pure cotton fabric and its application
  • Dyeing and finishing method of pure cotton fabric and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Gray fabric: pure cotton 40s / 110×90 non-mercerized semi-finished product

[0084] The above-mentioned gray cloth after the pretreatment is processed through the following steps in turn:

[0085] Dyeing (jig dyeing): the reactive dye used is reactive blue 198 (two monochloro-s-triazine reactive dyes), the concentration is 0.4% owf; the number of dyeing passes is 4, and each pass runs for 20 minutes. Carry out dyeing promotion, the number of channels for promoting dyeing is 4, each channel runs for 20 minutes, add alkali to fix the color, the number of channels for color fixing is 4;

[0086] Sand washing: the dyed fabrics enter the overflow machine for sand washing, add a mixture of 20g / L sodium metasilicate and 20g / L sodium bicarbonate as sand washing aids, first raise the temperature to 98°C, keep warm for 20min, and then Then cool down to 40°C, keep warm for 30min, and drain;

[0087] Water washing: first wash with hot water at 80°C for 10 minutes twice; then enter ...

Embodiment 2

[0128] Gray fabric: pure cotton 40s / 110×90 non-mercerized semi-finished product

[0129] The above-mentioned gray cloth after the pretreatment is processed through the following steps in turn:

[0130] Dyeing (jig dyeing): the reactive dye used is reactive blue 268 (two-fluoro-s-triazine group reactive dye), the concentration is 0.3% owf; the number of dyeing passes is 4, and each pass runs for 20 minutes, adding sodium sulfate Carry out dyeing promotion, the number of channels for promoting dyeing is 4, each channel runs for 20 minutes, add alkali to fix the color, the number of channels for color fixing is 4;

[0131] Sand washing: the dyed fabrics enter the overflow machine for sand washing, add a mixture of 20g / L sodium metasilicate and 20g / L sodium bicarbonate as sand washing aids, first raise the temperature to 98°C, keep warm for 20min, and then Then cool down to 40°C, keep warm for 30 minutes, and drain;

[0132] Water washing: first wash with hot water at 80°C for 1...

Embodiment 3

[0139] Gray fabric: pure cotton 40s / 110×90 non-mercerized semi-finished product

[0140] The above-mentioned gray cloth after the pretreatment is processed through the following steps in turn:

[0141] Dyeing (jig dyeing): the reactive dye used is reactive blue 198 (two monochloro-s-triazine group reactive dyes), the concentration is 0.5% owf; the number of dyeing passes is 2, and each pass runs for 20 minutes, adding sodium sulfate Carry out dyeing promotion, the number of channels for promoting dyeing is 2, each channel runs for 20 minutes, add alkali to fix the color, and the number of channels for color fixing is 4;

[0142] All the other are identical with embodiment 1.

[0143] The finished product obtained in Example 3 was tested, and the test results are shown in Table 7.

[0144] The detection result of table 7 embodiment 3

[0145]

[0146]

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Abstract

The invention belongs to the technical field of dyeing and finishing of fabrics and relates to a method and application of dyeing and finishing of pure cotton fabrics. The cotton fabric dyeing and finishing method comprises pretreatment, dyeing and post-treatment. The dye used in the dyeing process is an s-triazine-type reactive dye. The post-treatment process orderly comprises sand washing, waterwashing, softening treatment, dehydration and drying. In the sand washing process, a mixture of sodium metasilicate and sodium bicarbonate is used as a sand washing aid, the sand washing operation iscarried out at 95-100 DEG C for 15-25 DEG C, the fabric is cooled to 35-45 DEG C and then is subjected to sand washing for 30-50min, the washing solution is discharged and the fabric is washed by water. The softening treatment process utilizes a softening agent comprising a mixture of polyurethane and epoxy modified silicone resin. The method can improve the production efficiency, reduce the generation of the defective cloth, can also produce soft and fluffy peach skin fuzzy feeling on the cloth surface, and has a natural wrinkle and antique effect.

Description

technical field [0001] The invention belongs to the technical field of fabric dyeing and finishing, and in particular relates to a pure cotton fabric dyeing and finishing method and its application. Background technique [0002] With the development of the textile industry, the improvement of people's living standards, and consumers' requirements for fabrics and aesthetics are getting higher and higher. The demand for fabrics is not limited to classic and elegant styles. More and more fabrics with different styles are beginning to appear. , such as fabric products with casual, distressed, rough, fashionable, and contemporary styles. Among them, fabrics with distressed style are favored by consumers due to their appearance, unique artistic style, casual personality and fashion, and have great market value. [0003] The pure cotton sand-washed fabric is soft and has a simple texture. Its unique comfort and affinity in color are highly praised by clothing consumers, and it jus...

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): D06P3/66D06P1/38D06L1/16D06M11/76D06M11/79D06M15/564D06M15/65D06M101/06
CPCD06L1/16D06M11/76D06M11/79D06M15/564D06M15/65D06M2101/06D06M2200/50D06P1/38D06P3/66
Inventor 张彦
Owner 新乡橄榄枝纺织化工有限公司
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