Dyeing of textiles in wet processing refers to subjecting the substrate (cotton fabric/yarn) to a chemical treatment that renders uniform shades /colors. Each and every fiber has to be treated in different ways with different type of dyestuff and depensing on the nature of substrate and its physical form (fiber, yarn or fabric), specific equipment or machinery would be used. Here we will consider including as many type of fibers as possible, so that the reader will be benefitted in full.
As such cotton is available in many forms viz., fiber, yarn, fabric and garment.
The dyes and machinery suitable for dyeing cotton are many. However as a class of fiber,cotton is a natural cellulose and can be dyed using the following dyesuff: 1. Direct. 2.Reactive, 3.Vat, 4. Sulphur, 5. Solubilized vat, 6.Pigments.
To find the list of options you can visit the next page by clicking the DETAIL.DETAIL
Viscose is a regenerated fiber produced from Cellulosic materials such as wood pulp. Viscose fibres, like cotton, have a high moisture regain. It dyes easily, it does not shrink when heated, and it is biodegradable. It is used in many apparel end-uses, often blended with other fibres, and in hygienic disposables where its high absorbency is of great advantage.
Viscose also can be dyed using all the classes of dyes that are suitable for dyeing cotton, but under milder conditions.DETAIL
Acrylic is mostly used in its blends with cotton and wool. Its propoerties are almost like wool because of its chemical structure that resembles wool.
Acrylic blends dyeing can be done using acid,reactive and disperse dyes.
Polyester fiber is mostly blended with cotton, viscose and wool to make different kind of fabrics suitable for shirting and suitings. Since its a hydrophobic fiber and does not have any pores or site for holding the dyestuff molecules, this fiber can be dyed with only very fine dispersions of disperse dyes only and that too under high pressure and temperature.
Polyester and its various blends dyeing methods can be viwed in DETAIL.DETAIL
Silk is a protein fiber like wool and can be dyed using acid dyes.Mostly silk would be blended with other fibers since people wish to have its own feel, texture and sheen.
In addition to the above fibers, you can browse through the processing of the following fibers too: