Brightener E4BK

Extremely whiter bluish violet tone, it is special for cotton process. Dyeing Products for cotton Fabric and Yarn as Brightener E4BK
Trade name: Forsin E4BK

Features

Brightener E4BK is one kind of inhibiting fluorescent brightening agent. Its coloring is not fast but good leveling property. When be used in low temperature in neutron dyeing environment, without mirabilite or refined salt, it has a good affinity to fiber, while its dyeing ratio improves largely when using mirabilite.

Properties

	Fluorescence tonality	Tiny blue purple shade, with brightening white
	Composition	Stibene Derivative
	Appearance	Light yellow powder
	lonicity	Anion
	Ph range	6.0 -10.0 (Acid & soda resistance)
	Solubility	Miscible, solubility 30g/l in 20oC; solubility 120g/l in 60oC
	Stability	Resistant with acid; alkali, resistant sunlight fastness better, resistant chlorine better