Brightener Pigment

Optical whiteners/brighteners function by absorbing ultraviolet radiation and re-emitting blue light. The emitted blue light will reduce the yellowness of a polymer or other substrate and provides a whiter-than-white appearance.

Parawhite PL is a heat resistant, solvent soluble, chemically stable fluorescent whitener that 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 absorbing UV light, modifying the wavelength of the light and then emitting the light in a fluorescent fashion.

Parawhite PL can also be used as a tracer in various applications and as an optical brightener in thermoplastics, coatings, printing inks, dyes, man-made fibers

FEATURES

• Food grade optical Brightener
• Brilliant, bluish neutral white effects that compensates for yellowing
• Good light fastness and low volatility
• Exceptional whitening properties
• Highly compatible with a wide range of organic substrates and solvents
• Excellent resistance to heat
• Useful as a tracer in clear coatings or in specialty fuels

SOLUBILITY: Parawhite PL is
soluble in

Carbon Tetrachloride

Chlorobenzene

Chloroform

Tetrahidrofuran

Toluene

APPLICATIONS

Coatings - Parawhite PL provides an excellent means to determine coverage of either conventional or UV cure coatings. Small amounts act as a tracer which, when viewed under a black light, indicate whether or not uniform coating coverage has been achieved. This is especially useful for clear coatings where coverage can be difficult to determine by conventional means. Parawhite PL can also be used to offset the yellowness of coatings to yield a whiter appearance

Printing Inks - Parawhite PL may be used in printing inks to facilitate the quick identification of security bonds, and EMPIRICAL FORMULA : C26H26 N 2 0 2 S CAS : 7128-64-5

Printing Inks - Parawhite PL may be used in printing inks to facilitate the quick identification of security bonds, and also as a safeguard against forgeries (bank notes). Parawhite PL may also be combined with dyes to produce particularly bright shades. The effect is especially pronounced in pastel shades.

Thermoplastics - Parawhite PL can be used to impart excellent brightness to various thermoplastics, including: polyvinyl chloride, polyethylene, polypropylene, cellulose acetate, polystyrene, polycarbonate, acrylics, polyolefin, adhesives, polyurethane, linear polyester, and polyamides.

Man-made fibers - Parawhite PL imparts a lightfast brightness with good textile fastness properties to both PVC and acetate fibers.