Dyeing is a process that takes time. The transfer of a dye molecule from the dye solution into a fibre is usually considered to involve the initial mass transfer from the bulk dye solution to the fibre surface, adsorption of the dye on the fibre surface, followed by diffusion of the dye into the fibre, as shown in Fig.
Consequently, how does a jet dye machine work?
In jet dyeing machines a strong jet of dye liquor is pumped out from an annular ring through which a rope of fabric passes in a tube called a venturi. This venturi tube has a constriction, so the force of the dye liquor passing through it pulls the fabric with it from the front to the back of the machine.
| Name of Dyes | Application |
|---|---|
| Acid dye | Man made fiber (Nylon), Natural fiber (Silk, Wool) |
| Direct Dye | Manmade fiber (Viscose), Natural fiber (Cotton) |
| Vat dye | Man made fiber (Viscose), Natural fiber (Cotton, Silk, Wool) |
| Disperse dye | Nylon, Polyester, Acrylic, Tri-acetate, Di-acetate |
Moreover, what are the method of tie and dye?
tie-dyeing, method of dyeing by hand in which coloured patterns are produced in the fabric by gathering together many small portions of material and tying them tightly with string before immersing the cloth in the dyebath. The dye fails to penetrate the tied sections.
What are the methods of dyeing?
Methods of Dyeing
- Bale Dyeing: This is a low cost method to dye cotton cloth. …
- Batik Dyeing: This is one of the oldest forms known to man. …
- Beam Dyeing: In this method the warp is dyed prior to weaving. …
- Burl or speck Dyeing: …
- Chain Dyeing: …
- Cross Dyeing: …
- Jig Dyeing: …
- Piece Dyeing:
What is continuous dyeing?
Continuous dyeing is the most popular method of dyeing woven fabrics. … The goods move at a constant rate throughout and on completion of the dyeing they are taken up mechanically at the far end of the equipment. The process is run until the whole length of textile has passed through.
What is jigger dyeing machine?
The jigger dyeing machine is a large closed dye vat with two main rollers located in the top half of the machine. The fabric is wound onto one roller and then fed onto the other. The dye liquor is located at the bottom of the dye vat below the two main rollers, it is specially designed to require a low liquor ratio.
What is padding in dyeing?
A new technique of padding has been developed in which the air in the material is removed by applying a high vacuum. The material is then immersed in the treating liquor without release of the vacuum; impregnation occurs on release of the vacuum. This technique can also be used in batchwise dyeing.
What is padding mangle?
noun A machine, consisting essentially of a vessel or tub and a pair of squeezing-rollers, for the treatment of cotton piece-goods chiefly, either for dyeing them with some coloring matter or preparing them with a mordant.
What is shrinkage garment?
Shrinkage is the process in which a dimensions of fabric reduces and fabric becomes smaller than its original size (either widthwise, lengthwise or both), usually through the process of laundry/washing. … Fabric with higher amount of shrinkage is having negative impact on correct fitting of garment.
What is soft flow machine?
In soft flow dyeing machines the fabric is transported by a stream of dye liquor. However, the transport is assisted by a driven lifter reel. These machines use a jet having lower velocity that that used on conventional jet dyeing machines.
What is the sizing process?
SIZING PROCESS: The sizing is a preparatory process of weaving that comes after warping. It is a very important and critical preparatory process. “The process of application of a thin film of adhesive and binder on the yarn surface to improve the weavability of yarn is called sizing process”.