Laboratory Dyeing of Quickstone™ Denim and Conventional Denim
Following are laboratory dyeings on 100% cotton yarn knit tubes to compare Quickstone™ Denim to conventional method.
Ordinary Denim (A)
Indigo: 2.00 g/L
 Quickstone® Denim (B)
Indigo: 2.00 g/L
Quickstone® Denim (C)
Indigo: 1.14 g/L
Sample A was dyed using a conventional indigo dyeing system with 2.0 grams per liter (g/L) of pure indigo, two dips at 55% wet-pick-up.

Sample B was dyed using Quickstone™ Denim System with the same amount, 2.0 grams/liter of pure indigo, two dips at 55 % wet-pick-up.

Sample C was also dyed with the Quickstone™ Denim, except in this laboratory dyeing, more water with an appropriate amount of VIRCOTONE

QS-424 was added to Sample B's dyebath to reduce the indigo concentration by 43%. VIRCOTONE QS-424 maintains the optimum equilibrium conditions of the indigo dye bath for maximum dye affinity. Sample C also had two dips at 55 % wet-pick-up.

Notice that Sample C with 43% indigo dye reduction (1.14 grams/liter) closely matches the shade of Sample A. These dyeings were produced under laboratory conditions and not under tension on knit sleeves. Dye savings are common in production dyeing where the yarn is under tension.