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Dyeing

Natural Color Substances for Textile Materials

Natural Color Substances for Textile Materials EXPLORATION TEHNIQUE NATURAL DYES SUBSTANCE OF PLANTS IN AROUND US FOR DYEING TEXTILE MATERIALS According to the source of the textile dye is classified into 2, namely: First, Natural Coloring Agent (NCA) is a dye derived from natural materials in generally from the extracts of plants or animals. Second, […]

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Reactive Dyes – A Better Alternative To Traditional Dyes?

Reactive Dyes – A Better Alternative To Traditional Dyes? How Is The Dyeing Operation Performed? Dyeing operations are performed by binding dyes to fibres. There are primarily two types of dyes, namely: Water-soluble dyes Water-insoluble dyes When it comes to dyeing fibres, some fibres adhere to and accept dyes easily, while others do not. Depending […]

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Light Fastness and Factors Influencing Light Fastness Behavior

Light Fastness and Factors Influencing Light Fastness Behavior Textile Dyes and Pigments used in the industry vary to a great extent in terms of their resistance to light sources and this phenomenon is called as ‘Light-fastness of Textiles’. Sunlight materials emits electromagnetic radiations of several wavelengths. Visible range of spectrum (400 – 700 nm) , […]

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Introduction to Sulfur Dyes Part 1

Introduction to Sulfur Dyes Sulfur dyes are complex heterocyclic molecules or mixtures formed by melting or boiling organic compounds containing amino or nitro groups with Na-polysulphide and Sulfur. Sulfur dyes are so called as they all contain Sulfur linkage within their molecules.             Sulfur dyes are highly coloured, water insoluble compounds and have to be […]

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Auxilaries Of Disperse Dye

Part 1 : Disperse Dye for Polyester | Why called disperse dye | Application and mechanism  Part 2 : Method of polyester dyeing | Polyester Dyeing process   Auxilaries Of Disperse Dye . Carrier : The extreme crystalline nature of polyester fibre creates problem in obtaining dark shade by conventional dyeing method even at high temperature. The  carrier […]

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