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Formula and application of navy blue reactive dyes for cotton and cotton blended fabrics

A technology of reactive dyes and blended fabrics, which is applied in the formulation of navy blue reactive dyes, can solve the problems of poor light fastness of reactive dyes, achieve high dry and wet rubbing fastness, high light fastness, and low pressure for wastewater treatment Effect

Active Publication Date: 2022-03-04
ZHEJIANG LANTIANHAI FAB TECHNOLAGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the reactive dyes in this invention patent have the problem of poor color fastness to light

Method used

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  • Formula and application of navy blue reactive dyes for cotton and cotton blended fabrics
  • Formula and application of navy blue reactive dyes for cotton and cotton blended fabrics
  • Formula and application of navy blue reactive dyes for cotton and cotton blended fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Cotton fabric 63"32*32 130*70 Twill workwear fabric High lightfast navy blue reactive dye formula, including the following components by weight: Encai Clone Navy Blue PL-N 43g / L, Encai Clone Crimson SF 7.2 g / L and Yingcai Clone Orange CD 3.96g / L.The navy blue reactive dye is used to dye the cotton fiber in the fabric, and the dyeing process includes fabric pretreatment, fabric dyeing and fabric finishing and finalizing successively. Dyeing sequentially includes the steps of pad dyeing, pre-drying, steaming, soaping, color fixing and drying.

[0028] In this embodiment, the pretreatment of the fabric includes desizing, scouring, oxygen bleaching, singeing and mercerizing in sequence, all carried out according to the existing process. In the pad dyeing and coloring step, the blended fabric is The relative moving speed of the dye bath solution in the medium is 50 yards / minute, the temperature in the pre-drying step is 78°C, the temperature in the drying step is 90°C, and t...

Embodiment 2

[0035] Cotton fabric 63” 20*16 128*60 3 / 1 Workwear fabric High light fast navy blue reactive dye formula, including the following components by weight: Yingcai clone navy blue PL-N 30g / L, Yingcai clone deep red SF 6.0g / L and Ying Cai clone orange CD3.1g / L.Described navy blue reactive dyestuff is used for dyeing the cotton fiber in the fabric, and dyeing process comprises fabric pretreatment, fabric dyeing and fabric post-finishing setting in sequence, so Said fabric dyeing sequentially includes the steps of pad dyeing, pre-drying, steaming, soaping, color fixing and drying.

[0036] In this embodiment, the pretreatment of the fabric includes desizing, scouring, oxygen bleaching, singeing and mercerizing in sequence, all carried out according to the existing process. In the pad dyeing and coloring step, the blended fabric is The relative moving speed of the dyeing bath in the middle is 50 yards / minute, the temperature in the pre-drying step is 75°C, the temperature in the drying ...

Embodiment 3

[0043] 60% cotton, 40% polyester fabric 63”20*16 128*60 3 / 1 Tooling fabric High lightfast navy blue reactive dye formula, the coloring steps are to dye the polyester fiber with disperse dyes first, and then use Reactive dyestuff is to cotton fiber dyeing, accomplishes two colors to be consistent.Described disperse dyestuff comprises the following components by weight: Yingcaixiu navy blue HSF-N14g / L, Yingcaixiu yellow brown HSF01 2.4g / L, Yingcaixiu yellow brown HSF01 2.4g / L, Caixiu black HSF01 2.4g / L. The dyeing process includes fabric pretreatment, fabric dyeing, and fabric finishing and finalizing successively. dry step.

[0044] The above reactive dyes include the following components by weight: Yingcai clone navy blue PL-N 24.5g / L, Yingcai clone deep red SF 7.7g / L. The dyeing process includes pad dyeing, pre-drying, steaming, soaping, color fixing and drying steps in order to achieve the same two colors.

[0045] In this embodiment, the pretreatment of the fabric include...

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Abstract

The invention belongs to the technical field of reactive dyes, and in particular relates to a navy blue reactive dye formulation with high light fastness, high light-perspiration composite color fastness and high wet rubbing color fastness. The invention has navy blue reactive dyes used for dyeing fabrics to obtain high single-color light fastness, high perspiration fastness to acid sweat CS color change, cotton staining and perspiration fastness to alkali sweat CS color change grade, high resistance to dry and wet friction The advantage of high intensity, and the cost of navy blue reactive dyes is low, which can improve the brightness of clothing fabrics. Compared with vat (shihlin) dyes, the pollution is lower, and the pressure of wastewater treatment is lower. The overall production and application process is reasonable and effective, simple and fast, and in All cotton fabrics, cotton fiber and polyester fiber blended fabrics, cotton fiber and polyester fiber blended fabrics can be used efficiently and stably on these three types of fabrics.

Description

technical field [0001] The invention belongs to the technical field of reactive dyes, and in particular relates to a navy blue reactive dye formulation with high light fastness, high light-perspiration composite color fastness and high wet rubbing color fastness. Background technique [0002] Existing cotton fabrics, cotton fiber and polyester fiber blended fabrics, cotton fiber and polyamide ester fiber blended fabrics are the main types of clothing fabrics. At present, in addition to national flag red and other colors that require high brightness, the medium and dark fabric color solutions are only Dyed with vat (shihlin) dyes. [0003] But on the other hand, vat (shihlin) dye itself is insoluble in water and cannot be directly used for dyeing fabrics. It needs to be reduced to the sodium salt of leuco with a reducing agent such as hydrosulfite under alkaline conditions, and then absorbed On the fiber, and then oxidized by air or other oxidants to develop color, the leuc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/24D06P1/38D06P3/66D06P3/86D06P3/85D06P3/852
CPCC09B67/004C09B67/0072D06P1/38D06P3/008D06P3/66D06P3/8219D06P3/8228
Inventor 陈明青张港王跃庆
Owner ZHEJIANG LANTIANHAI FAB TECHNOLAGY CO LTD
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