Skywhite Optical Brightening Agent TH-180

PROPERTY

Appearance:Gray dispersion liquid

Ionicity: Non-ionic

Chemical structure: Stilbene benzene derivatives

Dyeing shade: Bluish

APPLICATION

1．With bluish white shade for polyester,triacetate fiber and their blends in all stage of processing.

2．With good high temperature fastness and light fastness.

3．With good stability to hard water,peroxide bleaching,acids and alkalis.

4．With high fluorescent strength and brilliant white shade.

5 .  With good low temperature dyeing for 110℃.

PROCESS METHOD

1．Exhaust process under high temperature

Dosage： TH-180 0.1-1.0% o.w.f

Dispersant：0.5-1g/L

Acetic acid adjustment pH=5-6

Temperature×time：110-130℃×30-40mins.

2.  Exhaust process under low temperature

Dosage： TH-180 0.1-1.0% o.w.f

Dispersant：0.5-1g/L

Acetic acid adjustment pH=5-6

Temperature×time：110℃×30-40mins.

3．Continuous process

Dosage：TH-180 1-10g/L Other auxiliaries：xg/L

Temperature×time：180-190℃×30-60sec.

PACKING

25kg plastic drum or according to customer request.

STORAGE STABILITY

1.The product is stable for 1 year when stored in closed containers at room temperature.

2．The product is sensitive to cold below 0℃ and sensitive to heat above 40℃.

3．The sediment usually developing with dispersions can be homogenized by stirring.