Description

optical brighteners4BK
1.light yellow appearance
2.high quality and purity
3.good package
4.sample supply
5.quick delivery
 Optical Brightening Agent 4BK   [Ingredients]  Stilbene [Properties]    *4       ApperanceSlight gray-yellowish powder *5       IonAnionic *6       PH value7.0∼9.0   [Characteristics] **6 Can dissolved in the hot water. **7 High whiteness increasing power. **8 Excellent washing fastness. **9 Minimum yellowing after high temperature drying.   [Application]         Suitable for brightening cotton or nylon fabric with exhaust dyeing process under room temperature, has powerful strength of whiteness increasing, can achieve extra high whiteness.  [Method of use] Dosage: 4BK:0.*5 ~ 0.*5%(o.w.f.)  Procedure: fabric :water 1:***0            ****0 for ***0 minutes  [Transport,storage and packing] *1     *5kgs in one cardboard boxes. *2     The product is non-hazardous,chemical properties stability,be used in any mode of transport. *3     At room temperature,storage for one year.