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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About Author
Salma Hasin
Salma Hasin Shila, the author of this site completed her BSc. in Textile Engineering (Wet Processing Engineering) from Bangladesh University of Textiles www.butex.edu.bd (BUTEX). She has a passion for textile technology and love to write about it. She wants to share her knowledge to help the students in their studies and businessman & entrepreneurs in their business in making wise decisions fast.
