Technical Application Note: Fluorescent Brightener OB (CAS No. 7128-64-5)

Technical Insights /

1. Introduction Fluorescent Brightener OB (Optical brightener OB) is a highly effective optical brightening agent (OBA), also known as a fluorescent whitening agent (FWA). It belongs to the bis-benzoxazole family and is renowned for its exceptional ability to enhance the whiteness and brightness of substrates. By absorbing invisible ultraviolet light and re-emitting it as visible […]

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papermill

Application methods of optical brighteners for papermaking

Product Applications /

There are three application methods: Pulp whitening: (The dosage is generally about 0.05%~0.2% of the dry pulp weight, pH value 7~8) Disulfonic acid varieties are suitable for neutral or alkaline papermaking, such as C.I., 85, 113, 134, etc.; Acidic papermaking requires Optical brighteners to be stable to acid and aluminum sulfate, and tetrasulfonic acid varieties

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What optical brightener should be used for EVA foam shoe soles?

Product Applications /

Foam EVA and foam PVC are widely used in the soles of sports shoes and casual shoes because of their relatively light elasticity, good performance and strong flexibility. Most of the foam soles are white. What kind of optical brightener should be used for EVA foam shoe soles? The soles often come into contact with soil, water, land and other

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Optical brightener example and their uses

Product Applications /

Optical Brightener- For Plastics/ Polymers OB, OB-1, FP-127, CBS-127, KCB, KSN, SWN etc. The difference among these brighteners are appearances, melting point, color shade etc. Contact us for more details. Optical Brightener- For Detergent/Soap Application CBS-X, OBA 351, DMS-X, AMS etc. Optical Brightener- For Textile ER-I (FBA199), ER-II (FBA199:1), EBF, BAC, SWN,CL, PF, BA, BBU,

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Optical brightener for masterbatches and polymer compounds

Product Applications /

Compounding is an important part of plastic waste recycling. The commonly used recycled materials include woven bags, beverage bottles, films, foams etc. Due to the different levels of impurities contained in the returned material, the granules produced are yellow and not white, which is a problem for the compound factories. Here are some useful points for choosing the right whitening agent. To choose

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Plastic optical brightener: Fluorescent brightener 184 (C.I. 184)

Technical Insights /

Fluorescent brightener 184 (C.I. 184) Trade name: Oribrite optical brightener OB. Foreign trade names: Uvitex OB (OB-C, OB-P) (CIBA), Whitex PNF (NSK). Hue/Tone: blue. Physicochemical properties: Oribrite OB(equivalent to Uvitex OB) is a pure optical brightener, used for various special purposes. It does not contain fillers, the appearance is light yellow to milky white powder, odorless, the melting point

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