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| BRITE-Optical Brightener CXT |
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| Bis-(triazinylamino)-stilbene disulphonic acid derivative |
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| 16090-02-1 |
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detergent industry:
Conventional detergent powders: 0.05-0.40%
Compact detergent powders: 0.10 - 0.80%
Industrial detergents: 0.20 - 1.60% |
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Techincal Data Sheet of Optical Brightener-CXT
Fluorescent whitening agent (FWA) for incorporation in laundry detergents, delivering very good white effects on cellulose fibers under medium or high washing temperatures.
Special Characteristics:
Brilliant white effects over the entire recommended temperature range
Compatible with other types of fluorescent whitening agents
Easy incorporation in all washing powders
High yellowing point with strong fluorescence.
Product Identification
1¡¢Chemical basis
C.I. Fluorescent Brightener 71
Bis-(triazinylamino)-stilbene disulphonic acid derivative (DAS)
2¡¢Ionicity
Anionic
3¡¢Form supplied
Pale yellow powder
4¡¢Solubility in water
Solubility in distilled water approx. 3 g /L at 98¡ã C
5¡¢Absorption maximum
349 - 351 nm in 0.01 M NaOH
6¡¢E (1 %, 1 cm)
410 ¡À 20 in 0.01 M NaOH
7¡¢Storage stability
48 months from delivery ex plant Brightener, China in closed containers.
8¡¢Note on safety
Information on handling and ecological and toxicological behaviour is contained in the safety data sheet for Brightener- CXT.
Ecological Data
Extensive tests to date have shown that at the concentrations indicated in this circular,
Brightener-CXT can be used without hazard for the recommended applications.
Brightener-CXT undergoes rapid photodegradation and forms a variety of melamine derivatives, which are sparingly biodegradable but have low toxicity.
All meeting (P)EC / PNEC ratios were below 1 and so therefore not conotitate a risk to
the environment.
Application
The recommended areas of application for BRIGHTENER¢ç CXT are summarized below together with incorporation levels based on detergent weight.
Conventional detergent powders 0.05 - 0.40%
Compact detergent powders 0.10 - 0.80%
Industrial detergents 0.20 - 1.60%
As can be seen from the recommended applications, BRIGHTENER-CXT is suitable for different
Detergent types which can be used by machine wash as well as by hand washing.
It can be better for result in detergent powders with the mixture of BRIGHTENER-CXT and BRIGHTENER¢ç CBS-X in certain ratio.
Function
Improving detergent color BRIGHTENER-CXT markedly improves the white appearance of
detergents such as conventional and compact powders when
incorporated in the slurry prior to spray drying.
Whiteness delivery BRIGHTENER-CXT gives the best effects on cellulosic fibres at
washing temperatures between 40 and 95¡ã C.
Stability BRIGHTENER-CXT is stable to alkali and peroxide under the conditions usually encountered in household and commercial laundering. Although partially destroyed by sodium hypochlorite
in the wash liquor, it is faster to hypochlorite when BRIGHTENER- CXT has exhausted on the fabric.
Light fastness The dry and wet light fastness of BRIGHTENER-CXT on cellulosic fibres is up to the standard of the bis-(triazinylamino)-stilbene
disulphonic acid FWAs on the market today.
Incorporation in detergents
BRIGHTENER-CXT is equally suitable for incorporation in conventional and compact washing powders as well as in industrial detergents.
BRIGHTENER-CXT can be easily processed by any method of incorporation such as spray-drying, agglomerating, post blending and spray blending.
BRIGHTENER-CXT can easily be dissolved in unstructured industrial liquid detergents based on nonionic surfactants and solvents. |
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