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資質(zhì)榮譽(yù)DOWELLTAN SPR-35
Aliphatic aldehyde retanning agent
Chemical & Physical Data:
Appearance: Yellowish to brown liquid
pH(10%): 2.0~5.0
Charge: Anionic
Properties:
lWhen used before pretanning, DOWELLTAN SPR-35 can improve grain tightness and level dyeing. It helps absorption and penetration of chrome resulting less chrome content left in the exhausted float after pretanning.
lDOWELLTAN SPR-35 has many reactive groups which can have a strong binding with collagen in leather fibers thus improve the softness & fullness of leather remarkably.
lDOWELLTAN SPR-35 has good consistency which can be used in many different process and also be used together with other tanning agent,dyes and fatliquor.
lDOWELLTAN SPR-35 has good light fastness.
Application:
lSuggestion dosage(based on shaved weight):
1-1.5% DOWELLTAN SPR-35 is used as pre-tanning agent；
2-4% DOWELLTAN SPR-35 is used as retanning agent.
Packing:
120L plastic drum
Storage:
1 year storage in sealed original package at 5-35℃. Avoid long-time exposure in the sunlight or freezing environment. Drums should be tightly resealed each time after material is taken from them, and their contents should be used up as soon as possible after they have been opened. Non-dangerous chemical.
