Dyeing Of Polyester Amongst Disperse Dye (Htht Method)

Theory: Disperse dyes are non-ionic inward nature, well-nigh insoluble together with remain equally finely divided dispersed from inward water. It tin plough over the axe hold out hydrolyzed inward hotness particularly nether element of group I condition. Therefore dyeing amongst disperse dyes is virtually e'er done using slightly acedia condition.

It is a unique dye staff for dyeing of polyester, nylon together with cellulose acetate fiber. These colorants convey inherent affinity to the fiber together with are merely mechanically trapped inward the fiber construction during dyeing of a hydrophobic cloth contents that the fiber absorbs dye molecule, which are dissolved inward the dye both.

Recipe:

Disperse Dyes = 2% (owf)

Carrier = ii g/l

Wetting agent = 1 g/l

Sequestering agent = 1 g/l

Levelling agent = 1 g/l

CH₃COOH = 1 g/l

Ph = 4.5 – 5.5

Temp = 130°C

Time = xxx min

Sample weight =5 gm

Reduction & Cleaning:

NaOH = iii g/l

Hydroze = ii g/l

Temp = 70°C

Time = 10 min

Neutralization:

CH₃COOH = 1 g/l

Temp = 50°C

Time = 10 2nd

Friction of the chemicalrequired:

Wetting agent: It accelerates the wettability of stuff inward solution therefore helps to slowly penetration of chemicals into substrate. Usually it is used inward scouring, bleaching & dyeing process. It is available inward marketplace inward from of yellowish liquid.

Sequestering agent: it i form of surface active agent deed inward corporation liquid, corporation gas or liquid gas interfaces together with reduces the interfacial tension.

Dispersing agent: using it is used inward disperse together with vat dyeing procedure helps to distribute the dye molecules inward dye both. It is likewise helps to penetrate the dye molecules into the substrate. It is available inward marketplace inward pulverization from.

well-nigh insoluble together with remain equally finely divided dispersed from inward H2O Dyeing of polyester amongst disperse dye (HTHT Method)

Fabric type - DIssperse
Fabric Name - Polyester
color - REd

Recipe calculation:

Dye: 100 gm cloth for ii gm dye

1 gm “ “ 2/100 “

5 gm “ “ 2×5 / 100 “ = 0.1 gm

Water: 200 gm [ m:L = 1:40]

Dispersing agent , one k CC water, Dispersing agent required = ii gm

1 “ “ “ =2 / one k “

200 “ “ “ = ii × 200 / 1000 gm = 0.4g

Wetting agent , one k CC water, wetting agent required = 1 gm

1 “ “ “ =1 / one k “

200 “ “ “ = 1× 200 / 1000 gm = 0.2g

Similarity,

Sequestering agent = 0.2 g/l

Levelling agent = 0.2 g/l

CH₃COOH = 0.2 g/l

Reduction & cleaning:

NaOH = 0.6 gm

Hydroze = 0.4 gm

Neutralization:

CH₃COOH = 0.2 g/l

Conclusion: The add-on of dispersing agent increase the dye solubility together with accelerate the dye diffusion into the swelled fiber structure. The dye diffusion tin plough over the axe hold out detained either. Using a suitable currier or providing hotness together with pressure.