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Salt-free dyeing method of cationic ion modified cotton fabric

A salt-free dyeing technology for cotton fabrics, applied in the direction of dyeing, textile and papermaking, etc., can solve the problems of poor levelness, reduced color fastness, darkening of color light, etc., and achieves high color fastness and good wet rubbing fastness. , the effect of color light not dimming

Inactive Publication Date: 2019-07-12
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a salt-free dyeing method of cationic modified cotton fabrics, to overcome the poor levelness, darkening of shade, Defects such as reduced color fastness

Method used

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  • Salt-free dyeing method of cationic ion modified cotton fabric
  • Salt-free dyeing method of cationic ion modified cotton fabric
  • Salt-free dyeing method of cationic ion modified cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare modified treatment solution at room temperature (N-methylolacrylamide (NMA) 10g / L, pH value 8, liquor ratio 1:8) → cotton fabric at 45°C, soak for 45min → 120°C, bake for 2min → cold water Wash and tumble dry.

[0029] Dyeing of modified cotton fabric at room temperature (acid reactive red RC-3B 2% (OWF), liquor ratio 1:10) → heating up to 95°C at a speed of 1°C / min, keeping it warm for 45min → cooling down to 70°C, adding color fixing agent G701 2% (OWF), color fixation for 30min→water washing→soaping (soap flakes 2g / L, 95℃, 10min, bath ratio 1:10)→water washing→drying. Determination of apparent depth K / S value, unevenness S and color fastness, the results are shown in Table 1.

[0030] Table 1

[0031]

Embodiment 2

[0033] Prepare modified treatment solution at room temperature (N-dimethylazetidine chloride (DMAC) 15g / L, pH value 5, liquor ratio 1:10) → viscose fabric at 50°C, soak for 30min → 130°C , bake for 2min→wash in cold water and dry.

[0034] Dyeing of viscose fabric at room temperature (acid reactive dye yellow RC-3R 2% (OWF), liquor ratio 1:15) → heat up to 95°C at a speed of 1°C / min, keep warm for 60min → cool down to 65°C, add color fixing agent WS 2% (OWF), fix color for 30min→water washing→soaping (soap flakes 2g / L, 95℃, 15min, liquor ratio 1:10)→water washing→drying. Determination of apparent depth K / S value, unevenness S and color fastness, the results are shown in Table 2.

[0035] Table 2

[0036]

Embodiment 3

[0038] Prepare modified treatment solution at room temperature (N-methylolacrylamide (NMA) 15g / L, pH value 8, liquor ratio 1:10) → viscose fabric at 50°C, soak for 40min → 120°C, bake for 2.5min →Wash in cold water and tumble dry.

[0039] Dyeing of viscose fabric at room temperature (acid reactive dye blue RC-R 2% (OWF), bath ratio 1:15) → heat up to 95°C at a speed of 1°C / min, keep warm for 40min → cool down to 70°C, add color fixing agent DK 2% (OWF), fix color for 30min→water washing→soaping (soap flakes 2g / L, 100℃, 10min, liquor ratio 1:10)→water washing→drying. Determination of apparent depth K / S value, unevenness S and color fastness, the results are shown in Table 3.

[0040] table 3

[0041]

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Abstract

The invention relates to a salt-free dyeing method of cationic ion modified cotton fabric. The method includes: soaking cellulose fiber fabric in treatment liquid, baking, washing with water, drying,putting modified cellulose fiber fabric into a dyeing vat, adding a polyamine color fixator for color fixation, washing with water, soaping, washing with water, and drying. By the method, the cationicion modified cotton fabric is high in leveling performance, free of darkening of color light and high in color fastness, especially high in wet friction fastness in the process of active dye salt-free dyeing.

Description

technical field [0001] The invention belongs to the field of fabric pretreatment and dyeing, in particular to a salt-free dyeing method of cationic modified cotton fabric. Background technique [0002] Cellulose fiber products have good edible properties, can satisfy people's psychology of advocating nature and returning to nature, and are very popular among consumers. Cotton fiber has the advantages of good air permeability, water absorption, soft hand feeling and comfortable wearing. According to the survey data of Fiber Organon, in recent years, the global annual output of textile cotton fiber has reached about 24 million tons, accounting for 25-26% of the total output of textile fiber, and the proportion of natural fiber output is as high as 94-95%. The dyes currently used for dyeing cotton fiber products mainly include direct, reactive, vat, sulfur and insoluble azo dyes. Among them, reactive dyes have simple molecular structure, bright color and complete chromatogram...

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): D06P1/38D06P1/39D06P1/00D06P3/66D06P5/06D06P5/02
CPCD06P1/0032D06P1/38D06P1/39D06P3/66D06P5/02D06P5/06
Inventor 蔡再生董伟伟朱锦刘畅顾海张静
Owner DONGHUA UNIV
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