EVA Optical Brightening Agent Optical Brightener
The principle of the fluorescent whitening agent is to absorb the invisible ultraviolet light in the light and emit visible blue light. After being superimposed with the yellow light emitted by the fabric, it complements to form white light, which increases the white light emitted by the fabric, and the naked eye can feel the white fabric obviously Become bright white, this is the bright white effect. Fluorescent whitening agent can absorb invisible ultraviolet light (the wavelength range is about 60-380 nm), and convert it into longer-wavelength blue or violet visible light, thereby compensating for the undesired yellowish color in the matrix, and reflecting more The original incident wavelength is more visible light in the range of 400-600 nm, which makes the product appear whiter, brighter and more vivid.
Product Introduction:
Optical Brightener (OB-1) 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. OB-1 is especially useful in polyester and nylon fibers as well in high temperature engineering plastics.
Except Optical Brightener,we can also supply Pvc Resin,Pet Resin, Titanium Dioxide, Carbon Black, Iron Oxide Pigments, PP Resin , DOP 99.5%,PVC Paste Resin etc.If any demands you may have,welcome to contact with us.
Specification:
Physical Properties:
| Appearance | Yellowish Powder |
| Molecular Weight | 414.4 |
| Melting Range | 357 - 360°C |
| Specific Gravity (20°C) | 1.39 |
| Decomposition Temperature | >400°C |
Solubility at 25°C (g/100ml solvent): | Solvent | Solubility |
| Acetone | <0.01% |
| Chloroform | <0.01% |
| n-Hexane | <0.01% |
| Methanol | <0.01% |
| Water | <0.02 mg/L |
Application: OB-1 is recommended to increase the whiteness of polyester and polyamide fibers as well as high temperature engineering plastics, including polycarbonates, Polyesters, and polyamides (Nylon). The product can also be used in styrenic and acrylic polymers.
Advantages:
1.Brilliant, bluish white effects that compensates for yellowing.
2.Good light fastness and low volatility.
3. Exceptional whitening properties.
4.Highly compatible with a wide range of organic substrates and solvents.
5.Excellent resistance to heat.
6. Useful as a tracer in clear coatings.
7. In combination with dyes, produces particularly bright shades.
Packing&Storage:
OB-1 is available in powder form in a 25 kg (55.10 Pound) fiber drum, net weight, with an inner PE liner.
This product may be stored up to one year in a sealed container. Containers should be stored in a cool, dry area. Extended storage at elevated temperatures or exposure to direct heat or sunlight could reduce product life. Keep containers sealed when not in use.
Product Categories : Pigment&Dye > Optical Brightener
