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Fluorescent brighteners OB/OB-1
Fluorescent brighteners, commonly referred to as optical brightening agents or white dyes, are colorless organic compounds that emit blue fluorescence when exposed to ultraviolet light. These substances enhance the perceived whiteness and brightness of materials by converting ultraviolet light into visible blue light. There are approximately 15 fundamental structural types…
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Fluorescent brighteners, commonly referred to as optical brightening agents or white dyes, are colorless organic compounds that emit blue fluorescence when exposed to ultraviolet light. These substances enhance the perceived whiteness and brightness of materials by converting ultraviolet light into visible blue light. There are approximately 15 fundamental structural types and nearly 400 derivative structures of fluorescent brighteners, which find extensive applications in industries such as papermaking, textiles, and detergent manufacturing. Their key characteristic is the ability to absorb ultraviolet radiation and re-emit it as fluorescent light, producing a visual effect similar to that of fluorite. This effect enhances the appearance of whiteness to the human eye, thereby achieving an effective optical whitening function.
FAQ
Yes. TDS (with parameters like melting point, density, viscosity) and SDS (compliant with GHS standards) are available for all products.
Yes. We provide free samples (max 5kg) for standard products. You only need to bear the shipping cost (via DHL/FedEx/UPS). For customized samples, a small R&D fee may apply (refundable if bulk order is placed). Sample delivery takes 3-7 working days.
The MOQ varies by product, usually is 500KG. For trial orders or small batches, please contact our sales team for a customized solution.
We support T/T (40% deposit in advance, 60% balance before shipment), L/C at sight, Western Union, and PayPal (for small orders). Other terms can be negotiated.
1. Submit your requirements (product model, quantity, specifications, delivery address) via email/contact form;
2. We send a proforma invoice (PI) with price, payment terms, and delivery time within 24 hours;
3. You confirm PI and pay the deposit;
4. We arrange production and update you with production progress;
5. After production, we send photos/videos for confirmation;
6. You pay the balance, and we ship the goods and provide tracking information.
-DDP terms: We arrange door-to-door delivery including customs clearance and tax payment (additional fee applies)
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