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Dyeing & Printing 1

Disperse Dye for Polyester | Why called disperse dye | Application and mechanism of disperse dyes | Features of of disperse dyes

Part 1 : Disperse Dye for Polyester | Why called disperse dye | Application and mechanism  Part 3 : Auxilaries Of Disperse Dye   Why called disperse dye Disperse dye are the smallest dye of all dyes. They are insoluble in water. When they are applied to the dye bath, they form dispersion. They are free from ionized group. So they have low […]

Dyeing Jute yarn with Basic dye

Method of polyester dyeing | Polyester Dyeing process

Part 1 : Disperse Dye for Polyester | Why called disperse dye | Application and mechanism  Part 3 : Auxilaries Of Disperse Dye   Method of polyester dyeing :  There are 3 methods of polyester dyeing .they are   Carrier method   Pad thermosol method   High temperature high pressure method     Polyester Dyeing process .  Carrier method: This process […]

Dyeing Jute yarn with Basic dye

Textile Printing | Feature of Textile Printing | Process flowchart of textile printing

 Textile Printing The word of “printing” has derived from a Latin word which means “pressing “. It implies a process that uses pressure. Textile printing is one kind of localized dyeing where dyes or pigments & chemical applied by any method which can produce a particular effect of color on fabric according to design. In […]

Dyeing Jute yarn with Basic dye

Reactive dye || Reactive dye features || Reactive dye classification

REACTIVE DYE Reactive dye is only dye that reacts with the textile fibre & makes covalent bond with fibre.Under the suitable condition it reacts with –OH or –NH2 of the fibre & forms covalent dye substrate linkage. DYE-SO2-CH2-OSO3Na + HO-Cell ———- D-SO2-CH2-CH2-O-Cell  + NaHSO3 FEATURES of REACTIVE DYE       1. Water soluble.     […]

Dyeing Jute yarn with Basic dye

Dyestuff | Classification of Dyestuffs

Dyestuff: Dyestuffs are organic and inorganic substances which consists of chromophore groups, can change the physical and chemical properties of any substance , can absorb light and reflect lights to show color. They are unsaturated complex compound.   Characteristics of dyestuff : It must contain chromophore group Chromophore group can be different types like -NO2,-NH2,-CO-,-N=O. […]

Dyeing Jute yarn with Basic dye