TOD-II Viva 6

Depth of micro-denier polyester with compare to normal polyester is always ________ .

• Higher

• Lower

• Same

• Cant predict

Which precaution is taken for even dyeing of texturised polyester.

• Heat setting at 180°C.

• Dyeing at 120°C.

• Dyeing with rapid dyes.

• All the above.

Dyeing rate is faster of micro denier polyester than conventional polyesterfibre.

• True

• False

CDPET fibre can dye with ______ dye.

• Disperse & Basic

• Disperse & Acid

• Disperse

• Basic

Yellower acrylic is safely bleach with________.

• Chlorite

• Peroxide

• Permanganate

• Hypochlorite

Drying after padding before thermo-fixation is carried out for -

• Better fixation of dye

• To increase depth of shade

• For better diffusion of dye

• None of the above

Heat setting is not required for fabric dyed in_______.

• Jet dyeing

• Beam dyeing

• Thermo fixation

• All the above

Scouring of acrylic is carried out in ________bath.

• Strong alkaline

• Weak alkaline

• Strong acidic

• Weak acidic

The Defitherm process is for level dyeing of

• Acrylic

• Nylon

• Polyester

• Acrylic and Nylon both fibres

Leveling agents are used in acrylic fibre dyeing bath to

• Difference in dyeability of fibres.

• Variationin the temperature.

• Variation in the dye concentration within the dyebath.

• All the above.