Carrier dyeing method for polyester

  Polyester dyeing process / Carrier dyeing method 

Polyester & all type of blended fabric that contain polyester, there polyester dyeing must be necessary. By dispersing dye we can dye polyester and its blend in below three ways. 

a. Carrier dyeing process ( at 80°C-90°C boiling  ).

b. High temperature and pressure dyeing process (120°C -130°C).

c. Thermosoling dyeing process.

Here in this blog, going to discuss the carrier dyeing process for polyester dyeing. 

Carrier dyeing process : 

The carrier dyeing process recipe is below : 

Recipe : 

Disperse dye ...............    2-3% based on fabric weight 

Ammonium ...................1-2 gram/liter

carrier     ....................   2.5-3 gram / Liter

Dispersing agent .........  2.5-3 gram / Liter 

Time ............................. 1 hour 

Temperature ..................100°C 

Material & liquor ratio .......1 : 28

Acetic acid ..................... as per necessity 

Process: At first we take color in a pot and mix disperse dye with water that much necessary to make the solution. In another pot based on fabric weight, we take 1: 30 water in a pot and add their Ammonium sulfate, dispersing agent, and carrier and the temperature rises up to 60°C. Then we add fabric to this mixed pot and treat for up to 15 minutes. After that, we add dye solution and control pH 4-5 by using acetic acid. Then we continue dyeing this state for 30 minutes and after that increas,e temperature gradually and raise the temperature up to 100°C and more 30-45 minutes need to dye. After that, we pick the fabric from the dye bath and wash it properly. In this state, there will also be some carriers in the fabric that need to be clear by reduction clear. 

Reduction clear recipe :

NaOH (Caustic soda ) ............1.5-3% Based on fabric weight 

Sodium Hydrosulphite (Na2S20O4).........2.5-3% based on the fabric weight 

Temperature ..........................................100°C 

Material liquor ratio.............................1:18