Sizing agents from indigo blue denim fabric
OwnerChul Soon Kanginventor
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Abstract
A denim fabric sheet is drawn into a folded rope configuration, and passed through an impact mechanism and an abrasion mechanism to give the fabric sheet a worn-out stonewashed appearance. Prior to passage through the impact mechanism the fabric sheet is coated with a water solution containing about five percent lubricant, four percent surfactant and about one percent antimigrant. After passage through the impact mechanism, the fabric sheet is rinsed and coated with a more dilute water solution about one percent lubricant, one quarter percent surfactant, about one half percent migrant, and about one half cellulase enzyme. The process is controllable to produce a consistent product appearance and fabric texture.
Claims5
A method of removing coloring and sizing agents from indigo blue denim fabric comprising;
- (a) coating a travelling sheet of indigo blue denim fabric with a first water solution containing a non-ionic lubricant, a non-ionic surfactant, and an antimigrant;
- (b) forming the coated sheet into a travelling folded rope configuration;
- (c) passing the rope-formed sheet across an impact mechanism, whereby impaction forces augment the action of the first water solution on the fabric;
- (d) rinsing the rope-formed sheet a first time to dilute the first water solution and remove any suspended particles from the fabric;
- (e) coating the rope-formed sheet with a second water solution containing an antimigrant;
- a non-ionic lubricant, a non-ionic surfactant, and a cellulase enzyme;
- (f) passing the coated rope-formed sheet from (e) through an abrasion mechanism, whereby abrasion forces augment the cleaning action of the second water solution on the fabric;
- (g) rinsing the rope-formed sheet a second time to remove any suspended particles from the fabric;
- and
- (h) subjecting the rope-formed sheet to a softening process.
Dependencies are inferred from the claim text.