Product Summary

Calever-440 is a leveling agent for wool and nylon(polyamide fiber) in acid dyes and milling dyes. Calever-440 can also use as stripping color agent.
  • Product Content


Composition…Polyoxyethylene ether Fatty amine derivative Solid content(%)…. 99 ± 1 %
Appearance.....Brown liquid Ionic ….....nonionic/weak cationic
pH(1%)…..…..9.0 ± 1 Solubility ............... Easily soluble in hot water



  1. Calever-440 has excellent retarding, leveling and transfer dyeing effect in acid dyes and milling dyes.
  2. Calever-440 has excellent wetting effect in BEAM and PACKING dyeing machine
  3. .Calever-440 can not only use as color-remanding agent but also use as stripping color agent in the alkali condition.



  1. Calever-440 mix with acid dyes evenly before adding into the bath. The dosage is 0.3 ~ 0.5% o.w.f.
  2. Color stripping agent The dosage of Calever-440 is 0.5 ~ 0.75% o.w.f. and 1 ~ 2g/L ammonia in 80 ~ 98℃.



Packing and storage

Net in 120 kg in PE drum or 200kg in drum. Storage time 6 months,We suggest keep goods in cool and dry place.