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Tel：+86-575-82212544
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Web：http://www.divxvakti.com
E-mail: shary@sxchchem.com
Optical Brightening Agent 4BK （C.I. 113）
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Chemical name |
Stilbene derivative |
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Structural formula
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Specification |
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Treating process: |
1.exhausting whitening process: 4BK: 0.05-0.8% (o.w.f.), bath ratio: 1: 30, dyeing temperature: 40°C -100°C; Na2SO4:0-10g/l.,start temperature :30°C , heating rate:1-2°C /min, keep the temperature at 50-100℃ for 20-40min, then lower to 50-30°C --> wash--> dry( 100°C ) --> setting (120°C -150°C )×1-2 min( add proper amount leveling agent according to the leveling effect). 2. Padding Process: 4BK:0.5-5g/l, residue liquor ratio:100%, one dip and nip --> dry( 100°C ) -->setting (120°C -150°C )×1-2 min |
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Use: |
Mainly be used as brightener of contton, linen, silk, polyamide fiber ,wool and paper. |
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Package: |
It is packed in 25Kgs carton..It can be packed according to the requirement of the user. |
