Everlan® Black SB and Evertan® WF

Optimizing Evertan® WF on 5 % Everlan® Black SB dyeing

Solution for improving washing and perspiration fastness of Everlan Black SB

As the dyeing concentration increases, the washing and perspiration fastness of leather will gradually decrease. Among these, deep black leather products with high concentration dyeing often fail to meet brand requirements due to poor washing and perspiration fastness.

Everlight Chemical provides an optimized pairing solution for Everlan Black SB and Evertan WF. It offers recommendations for Evertan WF dosage, temperature, and time based on fastness requirements, balancing both fastness demands and cost-efficiency.

Characteristics

(1) Washing fastness can be improved from grade 2–3 to grade 3–4. (Opt. @3% WF, 25°C X 60 min.)
(2) Perpiration fastness on grain can be improved from grade 2-3 to grade 4. (Opt. @3% WF, 50°C X 10 min.)
(3) Perpiration fastness on suede can be improved from grade 2 to grade 3-4. (Opt. @3% WF, 50°C X 10 min.)

Fastness Performance