Indigo Blue
＞ Specification of Indigo Blue
Indigo Blue is dark blue even grains vat dye,insolves in hot anilin,but not in water.It turns yellow green when meeting the oil of vitriol.It is yellow in alkaline rongalite revert liquid and white in acidic liquid.Have good flowability, which is beneficial to the automatic measuring and operation; good wettability and dispersibility, don't agglomerate or aggregate in use, and is convenient for preparing dye liquor; good storage stability, and don't absorb moisture easily, and has not electrostatic adsorption phenomenon.Widely used in dyeing cotton fabrics and Jeans and making up indigo bromide or made into organic pigment .
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Specification |
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Product Name |
Indigo Blue |
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C.I.No. |
Vat Blue 1 |
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Appearance |
Dark Blue Powder |
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Shade |
Similar to Standard |
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Strength |
100 % natioanl standard |
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Mesh |
*** |
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Content Water (%) |
*** |
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Diffusion Ability，Grade |
*** |
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Fastness |
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Light |
7 |
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Washing |
4 |
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Hypochlorite |
4-5 |
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Rubbing |
Dry |
4 |
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Wet |
3 |
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> Application of Indigo Blue
Vat dyes are widely used for colouring cellulosic fibre, especially cotton fibre along with viscose rayon, leather and other fibres.
Indigo Blue is the most used vat dye as it becomes the base for dyeing denim fabrics. Apart from that it can also be used in blend like polyester/cotton blend e.g. t-shirt in the second bath for dyeing the cotton fibre. But because of the high alkali concentration required for the dye bath, pure vat cannot be used on animal fibres (wool, natural silk, and various hairs).
> Package of Indigo Blue
10/25KG P.W.Bag /Carton Box / Iron Drum
Contact Person : Mr. Zhu
Email : info@tianjinleading.com
Phone/Wechat/Whatsapp : 008615922124436
