8 Key differences between Carrier- HTHP- Pad-Thermosol method

Polyester is a popular man-made fiber. It has a huge market for making apparel.

Polyester can be dyed with disperse dye in different method. Carrier method, High temperature high pressure method and Pad-thermosol methods are available for polyester fabric dyeing. There are basic differences between carrier, hthp, pad-thermosol method. But HTHP method is mainly used because the other methods have some drawbacks.

Though disperse dye is used for polyester dyeing, Basic dyes too can be used for dyeing cationic dyeable polyester. For basic dye, there is no need of any dispersing agent like disperse dye.

Here some key differences are enlisted below:

Carrier method

HTHP method

Thermosol method

Carrier is required no thickener is used

Neither carrier nor thickener is used

Carrier is not used but thickener used

Lower dyeing Temperature (80°- 100°C)

Higher dyeing temperature (125°- 140°C)

Very high temperature (180°- 220°C)

Costly, as carrier used

Not so costly / Cheap

Costly, due to this process required special arrangement

Toxic and unhygienic process due to carriers

Non-toxic and hygienic process

Non-toxic and hygienic process

Removal of carrier is difficult and alkali is used

Not applicable

Not Applicable

No change is shade

No change in shade

Change in shade due to sublimation

More shrinkage

Most shrinkage

less shrinkage

Less production

Less production

High production due to continuity

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