EASTOBRITE Optical Brightener OB-1

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EASTOBRITE Optical Brightener OB-1

EASTOBRITE Optical Brighteners significantly improve the whiteness in both textile fibers and plastics.
In polyester and nylon fibers, EASTOBRITE optical brighteners impart a pleasing whiter-than-white appearance and give more intensity to some colors as well.
Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers, EASTOBRITE OB-1 is an effective brightener for many plastics.
EASTOBRITE OB-1 provides an excellent white, permanent color since the brightener is dissolved in the polymer or fiber during polymer manufacture.
This permanence gives much better brightness retention over time versus other methods such as bleaching or surface treatment with optical brighteners.
Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light.
The emitted blue light will reduce the yellow color of a polymer and provide the whiter-than-white appearance.
EASTOBRITE OB-1 is available in two different particle sizes, 5 and 75 microns and has FDA approval for a variety of food-contact applications.
Optical brightener

Physical Form: solid
Color: yellow
Odor:odorless
Specific Gravity(water=1): 1.39(25'C)
Melting Point: 359'C
Solubility in water: 0.02g/inegligible

Industrial field

Eastman Chemical Company

Phone	(423) 229-2000
Fax	(423) 229-8466
Homepage	www.eastman.com
E-mail	-
Address	Box 431 Kingsport, Tennessee 37662 USA

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