FINISH LF-51 is a kind of benzotriazole type, ultraviolet absorbing type light fastness improver. It can improve the light fastness of natural fiber dyeing such as cellulose fiber, wool and silk, and it also has a very good anti-ultraviolet effect.

Physical properties:
Appearance: Light yellowish liquid
Main component: Benzotriazole compounds
Ionicity: Cation
pH: About5.5 (1%solution)
Solubility: Emulsified in water

Characteristics:
FINISH LF-51 can improve the light fastness of natural fiber dyed products such as cellulose fiber, wool and silk.
Prevent yellowing of cotton fabrics, wool, etc. caused by sunlight.
FINISH LF-51 can be treated by dipping or padding.
FINISH LF-51 is a UV absorber. Excellent UV cut processing is possible.
FINISH LF-51 is an ECO product.

Application / Dosage:
The dosage of FINISH LF-51 depends on the type and concentration of dye and the type of dyed fabric.
The standard dosage is 1~5% o.w.f.
The temperature condition of immersion / dipping treatment is 40~50°C×15~20 minutes.

Packing: 17kgs pail can with pallet

Comparison report: Light fastness test (JIS ATTS sweat light fastness test)
Dyeing fabric sample:
Reactive Dye 3 primary colors 0.33% each o.w.f.
Reactive Dye Rubin 1%o.w.f.
Reactive Dye Navy 1%o.w.f.
Processing conditions:
Bath ratio 1:20
Processing temperature, processing time 50°C×20 minutes
Light resistance improver:
1) FINISH LF-51 5%o.w.f.
2) FINISH LF-51 3%o.w.f.
3) Untreated
Light fastness test: JIS ATTS sweat light fastness test (63°C× 9 hours)

If you are interested in it, please feel free to contact us at tdpctw@gmail.com.
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