Method for dyeing mercerization baffeta with deep color on reactive dyes

A technology of reactive dyes and cotton fabrics, applied in the field of dyeing, can solve the problems of reactivity between dyes and cotton fibers, etc., and achieve the effects of reducing the amount of residual dyes, increasing the utilization rate, and improving the problem of deep color

Inactive Publication Date: 2008-10-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the reactivity of dyes and cotton fibers has not been well

Method used

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  • Method for dyeing mercerization baffeta with deep color on reactive dyes
  • Method for dyeing mercerization baffeta with deep color on reactive dyes
  • Method for dyeing mercerization baffeta with deep color on reactive dyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The mass ratio of diepoxide (dicyclopentadiene dioxide) to the glucose unit of cotton fiber is 1:50, and the mass concentration of weak base sodium hydroxide is 0.2%, wherein diepoxide and weak base The treatment is 40 ℃ processing 30min; the consumption of β-cyclodextrin is 3% (o.w.f), carries out the mercerizing treatment of cotton fabric 50s; At dye concentration 2% (o.w.f), liquor ratio 40: 1, respectively adopt technological curve ( figure 1 ), ( figure 2 ) for dyeing general (untreated) mercerized fabrics and mercerized cotton fabrics with cyclodextrin added after pretreatment. The dyes used were Huntsman Novacron Red FN-2BL, Huntsman Novacron Yellow FN-2R and Huntsman Novacron Blue FN-R. The results of relevant performance tests on the dyeing of dyes and dyed fabrics are as follows:

[0072] Table 1-1 Reactive dye exhaustion rate and fixation rate / %

[0073]

[0074] It can be seen from the above table that the exhaustion rate and color fix...

Embodiment 2

[0087] The mass ratio of the glucose unit adopting diepoxide (diepoxyhexanyl carboxylate) and cotton fiber is 1: 50, and the mass concentration of weak alkali sodium hydroxide is 0.2%, wherein, diepoxide and Weak base treatment is 35°C for 20min; the dosage of β-cyclodextrin is 3% (o.w.f), and the mercerizing treatment of cotton fabric is carried out for 60s; curve( figure 1 ), ( figure 2 ) for dyeing general (untreated) mercerized fabrics and mercerized cotton fabrics with cyclodextrin added after pretreatment. The dyes used were Huntsman Novacron Red FN-2BL, Huntsman Novacron Yellow FN-2R and Huntsman Novacron Blue FN-R. The results of relevant performance tests on dyeing and dyed fabrics are as follows:

[0088] Table 2-1 Reactive dye exhaustion rate and fixation rate / %

[0089]

[0090] It can be seen from the above table that the exhaustion rate and color fixation rate of the mercerized fabric are improved after treatment.

[0091] ...

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Abstract

The invention relates to a method that a mercerized cotton fabric is colored in deep tone with reactive dye, which comprises that: 1) the cotton fabric can be pretreated by being added with bicyclic oxides and weak base in room temperature, and then the cotton fabric can be added with cyclodextrin of 0.5 percent to 9 percent(o.w.f) for further processing while being implemented with mercerization; 2) after being dyed for 10 to 20 min, the processed mercerized cotton fabric is added with salt in a bath ratio of 20-40 :1 under the temperature of 30 DEG C to 40 DEG C, and then is added with calcined soda after 10 to 20 min; after 20 to 40 min, the processed mercerized cotton fabric is washed and boiled with soap, and then is washed again and dried; meanwhile, which is compared with the dyeing of general mercerized cotton fabric; 3) the degree of exhaustion, fixation rate, K/S value and color fastness of the dye and dyed fabrics are tested. The method can effectively improve the deep-dyeing property of which the mercerized cotton fabric is dyed with mesothermal reactive dye in the condition of low-temperature fixation, moreover, the method has the advantages of low fixation temperature, low energy consumption, economy and environmental protection.

Description

technical field [0001] The invention belongs to the field of dyeing, in particular to a method for dyeing mercerized cotton fabrics with reactive dyes in deep colors. Background technique [0002] After the cotton fiber is mercerized, the internal structure of the fiber will change, which can make the fabric smooth, bright in color, smooth and comfortable to wear, so it is favored by people. At present, the most important and potential dyes in cotton fiber dyeing are reactive dyes. Reactive dyes are better in dyeing brilliance and wet fastness. However, due to the simple structure of dyes, the directness to cellulose fibers is low, and the nucleophilic reaction between reactive dyes and cellulose fibers needs to be carried out under alkaline conditions, which makes it difficult for dye anions and cellulose anions to be dyed due to repulsion. Domestic counterparts have done a lot of research work on improving the utilization rate of reactive dyes. The results show that it ...

Claims

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Application Information

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IPC IPC(8): D06P3/66D06M13/11D06M13/224D06M11/38D06M15/03D06M101/06
Inventor 阎克路胡春艳刘栋良王丽胡少刚
Owner DONGHUA UNIV
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