Specification
Fluorescent whitening agent PF (also known as fluorescent whitening agent 135, C.I. Fluorescent Whitening Agent 135) is a distyrene bisbenzoxazole class fluorescent whitening agent. With its excellent fluorescent whitening effect, good thermal stability, and weather resistance, this product is widely used for whitening and brightening applications in plastics and synthetic fibers.
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Molecular Formula: C18H14N2O2 |
Molecular Weight: 290 |
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CAS No: 1041-00-5 |
C.I. No.: 135 |
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Appearance: Yellowish green crystal powder |
Melting Point: 182 ~ 188℃ |
Features
Light yellow crystal powder, not dissolve in water, can dissolve in a lot of organic solvents, excellent fastness to light transfer.
| Advantage | Description |
|---|---|
| High Fluorescence Intensity | Good fluorescence intensity, high whiteness, remarkable whitening effect |
| Excellent Thermal Stability | Does not decompose at high temperatures above 250°C, suitable for high-temperature processing systems |
| Good Acid and Alkali Resistance | Chemically stable, resistant to acids and alkalis, neutral in nature |
| Good Dispersibility | Excellent dispersibility, very easy to mix uniformly with plastics |
| Good Light Fastness | Good fastness and light resistance performance |
| Good Sublimation Fastness | Particularly suitable for polyester fibers requiring high-temperature processing |
Applications
Optical brightener PF Mainly used for whitening and brightening of PVC, and high-grade papers.
Can be mill to the slurry for whitening of polyester fiber.
Application Fields
Due to its excellent thermal stability and whitening effect, Fluorescent Whitening Agent PF is widely used in various industrial fields including plastics, fibers, and coatings.
1. Plastics Industry (Primary Application)
Suitable for whitening and brightening treatment of various thermoplastic plastics:
| Resin Type | Applicability Description |
|---|---|
| Polyvinyl Chloride (PVC) | Specially recommended, remarkable whitening effect |
| Polystyrene (PS) | Specially recommended |
| Polyacrylate (PMMA, Acrylic) | Suitable for transparent/opaque products |
| Polyester Film | Film whitening and brightening |
| High and Low Density Polyethylene (PE) | HDPE/LDPE commodity plastics |
| ABS | Engineering plastic whitening |
Package & Storage
10kg or 25kg/ fiber drums. It can be packed in other forms according to user's requirements.
Shelf life: not more than 24 months in the room temperature.
Why Choose Us
1.With our own factory, R&D, sales system
2.Establish a complete stock of conventional optical brightener products.
3. With a complete sample management system, we can provide testing and OEM services.
4. Integrate industry resources and academic resources to create a efficient R&D technical team to provide customers with customized technical solutions.
Optical Brightener OB-1 and ZDHC
While OB-1 is not explicitly listed as a restricted substance in some ZDHC MRSL versions, it's important to assess its use in the context of ZDHC guidelines, as it may be included under broader categories of hazardous chemicals or be subject to specific concentration limits.
What 's Optical Brighteners?
Optical Brighteners
Optical Brightener, or fluorescent whitening agent is a heat resistant and chemically stable fluorescent whitener that increases whiteness and provides brighter looking colors. It is used to offset the yellowness of a polymer and to yield a whiter appearance. Optical brighteners create brilliance by a fluorescence process involving absorption of invisible UV light and emission of visible blue light.
PRODUCTS RANGE FOR OPTICAL BRIGHTENER SERIES
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1.OPTICAL BRIGHTENER FOR PLASTIC & RESIN |
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Products |
Codes |
C.I. No. |
CAS No. |
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Optical Brightener OB |
TONEX WHITE OB |
C.I. 184 |
7128-64-5 |
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Optical Brightener OB1 |
TONEX WHITE OB1 |
C.I. 393 |
1533-45-5 |
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Optical Brightener FP-127 |
TONEX WHITE FP-127 |
C.I. 378 |
40470-68-6 |
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Optical Brightener KCB |
TONEX WHITE KCB |
C.I. 367 |
5089-22-5 |
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2. OPTICAL BRIGHTENER FOR PAINT & INKS |
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Optical Brightener OB |
TONEX WHITE OB |
C.I. 184 |
7128-64-5 |
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3. OPTICAL BRIGHTENER FOR TEXTILES & COTTON |
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Optical Brightener BA |
TONEX WHITE BA |
C.I. 113 |
12768-92-2 |
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Optical Brightener BBU |
TONEX WHITE BBU |
C.I. 220 |
16470-24-9 |
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Optical Brightener CXT |
TONEX WHITE CXT |
C.I. 71 |
16090-02-1 |
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Optical Brightener DMS (AMS) |
TONEX WHITE DMS/ AMS |
C.I. 71 |
16090-02-1 |
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Optical Brightener ER-I Liquid( PS-1) |
TONEX WHITE ER-I L ( PS-1/ ER 330 ) |
C.I.199 |
13001-39-3 |
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4. OPTICAL BRIGHTENER FOR DETERGENT & SOAP |
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Optical Brightener CBS-X ( CBS-351) |
TONEX WHITE CBS-X ( CBS-351) |
C.I. 351 |
27344-41-8 |
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Optical Brightener CXT |
TONEX WHITE CXT |
C.I. 71 |
16090-02-1 |
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Optical Brightener DMS (AMS) |
TONEX WHITE DMS ( AMS) |
C.I. 71 |
16090-02-1 |
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5. OPTICAL BRIGHTENER FOR PAPER & PULP |
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Optical Brightener BBU |
TONEX WHITE BBU |
C.I. 220 |
16470-24-9 |
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Optical Brightener BA |
TONEX WHITE BA |
C.I. 113 |
12768-92-2 |
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Optical Brightener APC |
TONEX WHITE APC |
C.I. 220 |
16470-24-9 |
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6. OPTICAL BRIGHTENER FOR WOOL & Acrylic |
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Optical Brightener SWN(MDAC) |
TONEX WHITE SWN ( MDAC) |
C.I. 140 |
91-44-1 |
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