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The optical brightener MDAC (SWN) 140 is mainly used for the whitening of soft and hard PVC plastics, wool, natural silk and acrylic fibers, nylon (polyamide), and also used for whitening washing powder. optical brightener MDAC (SWN) 140 is also a A common laser dye.

Chemical Name:optical brightener SWN;optical brightener MDAC,4-methyl-7-diethyl amino coumarin

 Purity:99.5%

Appearance:White to light brown crystalline powder

Molecular Formula:C14H17NO2

Melting point:68.5-72℃

CAS:91-44-1/61968-71-6

C.I.NO.:140


Application:

This product is used for whitening wool, natural silk, nylon, acetate fiber, triacetate fiber.Also can be used for cotton, 

cellulose fiber, acrylic fiber whitening. 

The dosage is 0.05% ~ 2.0%.

Adding synthetic washing powder to the fabric can improve the appearance whiteness of the fabric after washing.

Recommended Dosage

Polyamide:0.05-0.3%

Wool:0.05%-0.35%

Cellulose acetate fiber:0.05-1.4%

Triacetate fibre:0.1-2%

Acrylic:0.05%-0.8%