Description
1.Properties of Optical Brightener 4BK
- Appearance: Light yellow powder
- Ionicity: Anionic
- Water insoluble: ≤0.5%
- Moisture: ≤5%
- pH value: 6-12
2. Synonyms/Alternative:
Optical brightener 4BK, Synowhite 4BK, KISCO 4BK, Uvitex BHT
3. Feature:
Optical brightener 4BK has a high whitening and brightening effect. Shade can be shifted to red, blue, or violet according to clients’ request. Stable chemical properties. Excellent fastness to acid perborate and peroxide. Easy to soluble in water. And good affinity with most chemical agents in dyeing and finishing and can be used in exhaust dyeing and one-bath dyeing.
4. Common Application and Recommend Dosage
- Exhaust Dyeing method
Rate of use: 0.1-0.8% (o.w.f), bath ratio: 1:10-30dyeing
Process: 90-100℃x30-40min→wash→bake - One bath method
Rate of use: 0.2-0.8 (o.w.f), hydrogen peroxide: 5-15g/L,
Bleaching assistant: 0.5-2g/L, NaOH: 1-5g/L
Scouring agent: 0.5-1g/L, bath ratio: 1:10-30,
Process: 90-100℃x30-40min→wash→bake
5. Packaging & Storage
25kg or 30kg per drum or carton.
Should be stored in a cool, dry, and ventilated place, and the storage period should not exceed two years.
6. Transportation and Safty
Avoid inversion, sunlight, moisture, and crash. Avoid damaging the package.
Non Hazardous. Stock as ordinary chemicals. Wear Protective goggles and gloves while using. And avoid direct contact with skin and eyes. Soap clean if the skin is contaminated.
Shandong Grand Chemical Co., Ltd, is a professional manufacturer of optical brighteners in China.
If you have any inquiries about optical brighteners for textiles, please do not hesitate to contact us via sales@obachemical.com, or WhatsApp: +86 13173009832.
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