Natural indigo dyes
Atural indigo dye c.I.Vat blue 1, formula c16h10n2o2 is extracted from the leaves of the plant indigofera tinctoria. The product is entirely herbal and safe on the skin and has medical properties. It is used as dye on all types of yarn and fabrics. Indigo dye comes in the form of cakes. It can be powdered if specified. The production season for indigo dye is from august to december. The indigo leaves are used to make hair dye as well as prepare medicated hair oil.
Description of natural indigo dye It is prepared from leaves of indigo plant by natural fermentation process.
Botanical name Indigofera tinctoria
Common name Indigo blue
Part used Leaves
Chemical formula C16h10n2o2
Structure
Type of dye Vat dye
C.I. Number C.I. Vat blue 1
Main coloring component Indigotin (strength=35-43%) (swiss method) photo spectro metre method
Appearance Blue
Solubility in water 4.0+2.0%
Heavy metal continent Zn= 27ppm, cr=1.6ppm absent=pb, as, cu, hg, ni, cd.
Moisture content 5+1.0%
Ph. Of 1% solution 7+1.0
Specialty Color changes to greenish yellow in alkaline medium.
Dyeing The process of dyeing cotton, wool & silk is almost same. The process is like that of vat dyes. The dye has to be dissolved in reduced state, then oxidized to get the shade blue.
Colors imparted Blue.
Manufacture exporters of the following range of pigment dispersions (water based) in liquid / paste form
Saiment p pigment dispersions for aqueous based paints like emulsions, acrylic emulsions, distempers etc.
Sairafil wi pigment dispersions for water based inks like flexo, printing and packaging, flexo gravure inks, and screen printing inks etc.
Sairaperm pd pigment colourants for soaps, detergents, and liquid soaps etc.
Sairanyl pg pigment dispersions / preparations for colouration of insulating materials, bitumen, wood stains & varnishes, artist colours, chalks, latex etc.
Sairathane pu pigment dispersions for polyurethane foams
Sairaprint pe pigment emulsions for textile printing
4-Dodecylaniline
This product can be used as intermediate of surface reactive dyes.
This product is intermediate of acid dyes , it is material of acid yellow 3gs , acid red 138, acid blue bs.
This product also is additive of fuel oil.
Formula: c18h31n
Mw: 261.4496
Acx number: x1029402-7
Sodium alginate
Sodium alginate is a polymer carbohydrates extracted from seaweeds. With its features of high content of mannuronic, acid, it is good as printing thickner in textile industry and good as thickening film and gelforming additives in food and soft drinking industry.
Quality standard pale yellowish powder, 100% pass through 30 mesh.
Moisture:15%max.
Ph value:6-8(in 1% solution)
Calcium content:0.% max.
Grade the following grades differed by diffderent viscosity:
Extra low viscosity:10-50 cps
50-100 cps
Medium low viscosity:200 +50 cps
300 +50cps
Medium viscosity: 400 +50 cps
High viscosity:500 +50 cps
600-800 cps
Extra high viscosity:1000í+100 cps
Viscosity tested basis on 1% solution (natrual basis) at 20ípc by brookfield viscometer rvt.
