Composite active black dye

A reactive black and dye technology, applied in the direction of organic dyes, etc., it can solve the fastness of dry and wet rubbing and white cloth staining, which is difficult to meet customer requirements, alkali resistance, water resistance, and color fastness. In order to achieve the effect of ensuring lifting force and dye depth, excellent dyeing fastness and good levelness
CN1687244AInactive Publication Date: 2005-10-26SHANGHAI KEHUA DYESTUFF IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI KEHUA DYESTUFF IND
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a kind of disazo dyestuffs composition, the described composite active blank dyestuff mainly contains four dyestuffs, said invention also provides their structure formulas. The described composite dyestuff is suitable for dyeing dark colour fabrics, such as cellulose fibre, cotton fibre and synthetic fibre, etc., and has good level-dyeing property, repeatability, high dyeing fastness, fastness to washing and wet rubbing fastness.
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Description

(1) Technical field

[0001] The invention relates to a bisazo dye composition. (2) Background technology

[0002] Black dyes are indispensable and used in large quantities in textiles. In the past, sulphur black was used to dye cellulose fibers, but sulphur black caused serious environmental pollution during use. With the continuous improvement of people’s requirements for textile fabrics’ feel, texture, comfort, color fastness and environmental protection, reactive dyes have become the current development trend to replace sulfur dyes in dyeing black. However, the use of general reactive dyes to dye black is dry and wet. The fastness to rubbing and staining of white cloth has been difficult to meet customer requirements.

[0003] The most widely used reactive black GR currently on the market is compounded by adding orange components on the basis of CI Reactive Black 5. Its alkali resistance, water fastness and jet blackness are not ideal. Patent CN1524904 discloses Although compos...

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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