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資質(zhì)榮譽(yù)DOWELLTAN NB-D
Modified polymer retanning agent
DOWELLTAN NB-D is a modified polymer retanning agent.
Chemical & Physical Data:
Appearance: Dark brown viscous liquid
Solid content /% : 38.0~40.0
pH(10%) : 4.5~6.0
Charge: Anion
Properties:
lIt can be used for retanning chrome-tanned leather, giving the leather fiber a very firm and full hand feel and a firm, flat and fine grain.
lThe active group in the product has strong affinity and can be firmly combined with leather fiber.
lIt can promote the absorption and penetration of dyes and other anionic materials, and make leather full and bright in color.
Application:
lAfter neutralization, be used when the pH value is above 4.5, suggested dosage: 2-10% (The weight of the chrome tanned leather is shaved).
Packing:
120L plastic drum
Storage:
1 year storage in sealed original package at 5-35℃，Avoid long-time exposure in 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. The change of external temperature may cause slight changes in appearance. Please stir thoroughly before using. Non-dangerous chemical.
