VAT DYES
- CAS No.
- Chemical Name:
- VAT DYES
- Synonyms
- VAT DYES
- CBNumber:
- CB5512744
- Molecular Formula:
- Molecular Weight:
- 0
- MOL File:
- Mol file
VAT DYES Chemical Properties,Uses,Production
Uses
The 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.
Definition
A 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
Raw materials
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
Arihant Colourchem | 08048973680 | Delhi, India | 6 | 58 | Inquiry |
Colortex Laboratory | 09892218094 | Maharashtra, India | 1 | 58 | Inquiry |
Varshney Chemicals | 08046036890 | Delhi, India | 5 | 58 | Inquiry |
Vipul Organics Ltd | 08068979672Ext 136 | Mumbai, India | 3 | 58 | Inquiry |
Bagmull & Sons | 07942562770 | Mumbai, India | 16 | 58 | Inquiry |
Chempro Pharma Private Limited | 09987385551 | Mumbai, India | 6 | 58 | Inquiry |
Ritu Dye Chem | 08048372791Ext 264 | Delhi, India | 4 | 58 | Inquiry |
Kevin Dyes & Chemicals Private Limited | 08048372280Ext 359 | Mumbai, India | 2 | 58 | Inquiry |
kemikalieimport | + 45 - 2034 3359 | Europe | 6699 | 47 | Inquiry |
ecochem international chemical broker | +45 45 42 34 36 | Europe | 6385 | 66 | Inquiry |
Supplier | Advantage |
---|---|
Arihant Colourchem | 58 |
Colortex Laboratory | 58 |
Varshney Chemicals | 58 |
Vipul Organics Ltd | 58 |
Bagmull & Sons | 58 |
Chempro Pharma Private Limited | 58 |
Ritu Dye Chem | 58 |
Kevin Dyes & Chemicals Private Limited | 58 |
kemikalieimport | 47 |
ecochem international chemical broker | 66 |