Theory of Pretreatment?Objective of Pretreatment?Flow chart of pretreatment?

Theory of Pretreatment: The term “Pretreatment” covers all operations of preparing textile material for subsequent dyeing, printing & finishing processes. There is saying in textile “well dyeing depends on well pretreatment”. Objective: The preparation of goods for dyeing & printing is a far important process then the production of white goods. Textile material to be dyed or printed must have the following properties- High & uniform dye uptake &absorptive. Completely free from husks. High degree of polymerization of the cellulose. Adequate degree of whiteness to permit faultless dyeing of pale shades. Flow chart of pretreatment:

Theory of Pretreatment:

The term “Pretreatment” covers all operations of preparing textile material for subsequent dyeing, printing & finishing processes. There is saying in textile “well dyeing depends on well pretreatment”.

Objective:

The preparation of goods for dyeing & printing is a far important process then the production of white goods. Textile material to be dyed or printed must have the following properties-

High & uniform dye uptake &absorptive.
Completely free from husks.
High degree of polymerization of the cellulose.
Adequate degree of whiteness to permit faultless dyeing of pale shades.

Flow chart of pretreatment:

Theory of Pretreatment: The term “Pretreatment” covers all operations of preparing textile material for subsequent dyeing, printing & finishing processes. There is saying in textile “well dyeing depends on well pretreatment”. Objective: The preparation of goods for dyeing & printing is a far important process then the production of white goods. Textile material to be dyed or printed must have the following properties- High & uniform dye uptake &absorptive. Completely free from husks. High degree of polymerization of the cellulose. Adequate degree of whiteness to permit faultless dyeing of pale shades. Flow chart of pretreatment:

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