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VAT DYES

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VAT DYES Suppliers list
Company Name: Hubei xin bonus chemical co. LTD
Tel: 86-13657291602
Email: linda@hubeijusheng.com
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Company Name: Colortex Laboratory  
Tel: 09892218094
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Company Name: Arihant Colourchem  
Tel: 08048973680
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Company Name: Varshney Chemicals  
Tel: 08046036890
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Company Name: Vipul Organics Ltd  
Tel: 08068979672Ext 136
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VAT DYES Basic information
Product Name:VAT DYES
Synonyms:VAT DYES
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MW:0
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Mol File:Mol File
VAT DYES Structure
VAT DYES Chemical Properties
Safety Information
MSDS Information
VAT DYES Usage And Synthesis
UsesThe vat dyes are insoluble complex polycyclic molecules based on the quinone structure (keto-forms). They are reduced with sodium hydrosulfite in a strongly alkaline medium to give soluble leuco forms that have a great affinity for cellulose. After the reduced dye has been absorbed on the fiber, the leuco forms are reoxidized to the insoluble keto forms. The dyeings produced in this way have high wash and light-fastness.
DefinitionA class of insoluble dyes applied by first reducing them to derivatives that are soluble in dilute alkali. In this condition they have a great attraction for certain fibers, such as cotton. The solution is applied to the material and the insoluble dye is regenerated in the fibers by atmospheric oxidation. Indigo and indanthrene are examples of vat dyes.
VAT DYES Preparation Products And Raw materials
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