Optical Brightener SWN
  • Air ProOptical Brightener SWN

Optical Brightener SWN

Optical Brightener SWN, fluorescent whitening agent SWN,CAS NO.:91-44-1/61968-71-6,widely used for whitening wool, natural silk, whitening nylon, acetate fiber, triacetate fiber. Optical Brightener SWN can also be used for cotton, cellulose fiber, acrylic fiber whitening, especially for cotton textiles whitening, can effectively improve cotton appearance whiteness.Optical Brightener SWN can also be used to whiten soap and washing powder, and can be added into synthetic washing powder to wash fabric to improve the appearance whiteness of washed fabric.

Send Inquiry

Product Description

Optical Brightener SWN


Optical Brightener SWN is soluble in ethanol and ethylene glycol, acidic aqueous solution, resin, varnish and some organic solvents, but its solubility in water is only 0.006% . Commercialized products are generally applied in a solution type which is formed by salting with sulfuric acid or hydrochloric acid or mixing with organic acids (such as tartaric acid, citric acid, oxalic acid) or adding solubilizers to improve solubility and dispersants. Optical Brightener SWN added to the textile into a red light purple tone.

 

1.SWNPerformance Metrics:

Appearance

white to light brown crystalline powder

CAS NO.

91-44-1/61968-71-6

EINECS No.

202-068-9

MF

C14H17NO2

Molecular weight

231.29

Structure type

Coumarin (C.I. 140)

Maximum UV absorption wavelength

1000-1100nm

Color light

red-purple

Melting Point

68.5-71.9°C

Benzoic acid dissolved state

transparent solution, no impurities

Content

≥98.5%

Moisture content

≤0.5%

Scorch residue

≤0.06%

 

2.SWN Applications:

Optical Brightener SWN widely used for whitening wool, natural silk, whitening nylon, acetate fiber, triacetate fiber. Optical Brightener SWN can also be used for cotton, cellulose fiber, acrylic fiber whitening, SWN especially for cotton textiles whitening, can effectively improve cotton appearance whiteness.Optical Brightener SWN can also be used to whiten soap and washing powder, and can be added into synthetic washing powder to wash fabric to improve the appearance whiteness of washed fabric.

 

 

3.SWN ReferenceDosage:

(1) Optical Brightener SWN for cotton textiles: 50g-500g (0.05-0.5%) per 100kg of cotton textiles added with fluorescent whitening agent SWN.

(2)Optical Brightener SWN applied to plastic: SWN in the amount of 0.01-0.06%, and the corresponding processing plastic mixture can be uniform.

(3)Optical Brightener SWN For wool, natural silk and acrylic, generally in liquid state use.

Dosage of SWN: Wool: 0.05-0.35% ; natural silk: 0.05-0.4% ; acrylic: 0.05-0.8%

(4)Optical Brightener SWN can also be added to detergent and washing powder as a whitening agent, the amount of 0.001-0.005% .

 

4.Our advantage:

1. Owned factory, Owned R&D center and lab.

2. Factory directly sale, price can be always 3% lower than the market price.

3. Less dosage, Better effect.

4. Fast delivery, Excellent service.

5. We not only sell OBA, but also provide system whitening solutions and technique support.

6. We have many years of export experience, we can provide to you complete shipping documents for your custom clearance.

 

5.Packing information:

Usually is 25Kg/cardboard drum with inner double PE liner.

 


Hot Tags: Optical Brightener SWN, China, Supplier, Manufacturer, Factory, Wholesale, Brands, Price, Low Price, Discount, Bulk, Cheap, Price list, In stock, Free Sample

Related Category

Send Inquiry

Please feel free to give your inquiry in the form below. We will reply you within 24 hours.