Friday, October 5, 2012

TINTING WITH WHITE DISCHARGE EFFECT ON DENIM GARMENTS


TINTING:
Coloration that produces a very pale shade. A tint usually represents the minimum amount of color that will give perceptible appearance of coloration. In yarn processing, fugitive tints are used for identification, and then removed in wet processing.

Tinting (also called over-dyeing) Laundries often tint denim to try to make it look more vintage, or to achieve a different cast. The telltale signs of a pair of jeans that have been tinted are that the pocket lining and labels are dyed as well as the jeans.

TINTING WITH WHITE DISCHARGE EFFECT ON DENIM GARMENTS

The standard route to blasting/discharging/tinting is quite elaborate, in the light of three effects to be imparted on the same garment. There have been short cuts, which may be right/wrong/ingenious. If tinting is done on blasted/discharged areas, it obviously remains a spray method. However, if the tinting is overall, it follows the dyeing route. The process starts on gray garment being hand blasted followed by desizing and biopolishing. After drying the garment, tint-spray is given followed by air/machine drying and finishing. For tinting by dyeing method, the biopolished garment can straight away go for tinting wet-on-wet followed by finishing and drying.
In case of white discharge tinting the route would start with desizing-biopolishing on gray garment, peroxide bleaching after biopolishing being optional. After drying the garment, a potassium permanganate spray is given to areas where white discharge is aimed at. After air-drying for about 10-15 minutes, a neutralization step consisting of provide-acetic acid is given which is followed by hot and cold rinses. In case of spray tinting the garment will have to be dried first, whereas for overall tinting, dyeing the method could be followed wet-on-wet. Finally the finishing and drying would complete the process.


BEFORE TINTING WITH WHITE DISCHARGE EFFECT ON DENIM GARMENTS
AFTER TINTING WITH WHITE DISCHARGE EFFECT ON DENIM GARMENTS

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