Wednesday, May 3, 2017

Fluorescent Optical Brighteners - China manufacturer of optical brightener

Fluorescent Optical Brighteners Features:

1. Pale green powder, tasteless, dissolvable in paraffin, fat, olefin and most organic solvents.
2. Good brightening effects and weathering resistance requires a small quantity but can be widely used.
3. Has good acid and alkali resistance, excellent whitening effect.

Fluorescent Optical Brighteners Uses:

Fluorescent Optical Brightener can be used in the whitening of thermoplastic plastics, PVC, polystyrene, polyethylene, polypropylene, ABS, cellulose acetate, paint, coating, printing inks, etc. Brightener OB can be used in whitening of polymer at every processing stage, bring products brilliant blue white lustre.

Fluorescent Optical Brighteners Method of Application:

1. Fluorescent Optical Brightener used for pulp bleaching, can added to the slurry directly, conventional dosage: 0 3-1.2% (on dry pulp).
2. In surface sizing, Fluorescent Optical Brighteners can be used together with the starch, CMC, PVA, etc. Get better whitening effect.
3. In coating process, Fluorescent Optical Brighteners can be add in the PVA, CMC. Could get better results when use with starch, conventional dosage 0.1-1.4% (by weight of the coating).

China professional Fluorescent Optical Brighteners supplier, welcome to buy Fluorescent Optical Brighteners from us. Email:

this article is published by China manufacturer and supplier of Fluorescent Optical Brighteners - Wuhan Shine Technology Co., Ltd.

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Tuesday, February 28, 2017

Optical Brightener for Polyester - China Supplier of Optical Brightening Agents

 Optical Brightener for Polyester

Optical Brightener are added to many materials to reduce yellowing, improve whiteness, and to enhance the brightness of a product.

Optical Brightener Properties:

1. High whitening strength and strong fluorescence.
2. Wide application scope: polyester, nylon fiber and various plastics.
3. Excellent resistance to high temperature.
4. Excellent compatibility with PVC and other polar polymers, migration endurance.

Optical Brightener Use Method: 

1)pad-dyeing hot-melt method
dosage:1-3g/L(adjust according to the sample test)                  
technological process: two-bath two-pad (pick-up rate 70%) → pre-baking(100℃) → baking(180-200℃,20-30s)
2)exhaust dyeing
bath ration:1:10-30;
PH:5-10(better for weak acid bath)
technological process: 98-100℃(low-temperature)×30-60min → wash → parch → finalize
120-130℃(high-temperature)×30-60min → wash → parch → finalize

China professional manufacturer of Optical Brightener, welcome to buy Optical Brightener for Polyester. Email:

this article is published by China manufacturer and supplier of Optical Brightener for Polyester - Wuhan Shine Technology Co., Ltd.

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