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Fluorescent Whitening Agent (FWA)

short description:

It is a compound with a very high quantum efficiency, in the order of 1 million to 100,000 parts, which can effectively whiten natural or white substrates (such as textiles, paper, plastics, coatings). It can absorb the violet light with a wavelength of 340-380nm and emit blue light with a wavelength of 400-450nm, which can effectively make up for the yellowing caused by the blue light defect of white materials. It can improve the whiteness and brightness of the white material. The fluorescent whitening agent itself is colorless or light yellow (green) color, and is widely used in papermaking, textile, synthetic detergent, plastics, coatings and other industries at home and abroad. There are 15 basic structural types and nearly 400 chemical structures of fluorescent whitening agents that have been industrialized.


Product Detail

Product Tags

Product Usage

洗衣粉
造纸
印染2

Product Details

1

FWA  CBS-X

Appearance : Yellow-green uniform powder/particle

Uv absorption : 1105-1181

Maximum absorption wavelength : 349nm

Performance characteristics

The fluorescence quantum yield is high, and the dosage is only one quarter of that of stilbene-triazine type fluorescence self-enhancing agent. Hue purple (blue violet light), extremely resistant to chlorine bleaching, hydrogen peroxide bleaching and strong acid, strong alkali, can significantly increase the whiteness of washing powder and soap and soap, improve its appearance quality. Good mobility, at low temperature, small bath than hand washing and machine washing uniform whitening of clothing, will not produce spots. Strong whitening effect, in cold water and warm water on cellulose fibers. Polyamide. Protein fiber. Cotton and other fluorescent whitening agents have higher self-increasing effect, while other fluorescent whitening agents have poor whitening effect at low temperature. The whitening speed is fast, and the fabric can reach a high whiteness in a very short time. It has excellent dry and wet sun fastness and excellent sweat stain resistance, and the diphenyl triazine fluorescent whitening agent is easy to be decomposed during the drying process of the washed fabric, and makes the fabric yellow under the action of sweat stain. After repeated washing, the effect is better, the more white the washing, the more brilliant the washing, and the styrene-triazine fluorescent whitening agent will make the fabric green after repeated use. Darkening, whiteness decreases. Insoluble in chlorinated hydrocarbons, but can be dispersed in them. The particle products of this product have a large average particle size, which is environmentally friendly products.

Use

Mainly used in high-grade synthetic washing powder. Super concentrated liquid detergent, can also be used in soap. The whitening of soap can also be used in fabric softener and finishing agent. It can be used alone or combined with other kinds of fluorescent whitening agent according to different needs. Cotton is dyed by exhaustion and pad, wool is dyed by exhaustion, and nylon is dyed by exhaustion. Pad dyeing hot setting method. Acid pad dyeing or solvent pad dyeing method, can also dye silk, good fastness. The affinity for cotton is low to medium, and the affinity for wool, silk and nylon is high.

Recommended dosage

① In synthetic detergent, it is recommended to add as follows:

 

Type dosage/% Type dosage/%
Common washing powder 0.05-0.25 Laundry soap 0.05-0.15
Concentrated washing powder 0.10-0.40 Toilet soap 0.05-0.15
Liquid detergent 0.05-0.40 Soften washing agent 0.02-0.05
Industrial cleaning agent 0.20-1.00 Emulsio 0.05-0.15

② Application in printing and dyeing: the yellow point of the bath ratio of 1:20 is 0.3%, and the yellow point of 1:40 is 0.5%.

 

2

FWA  CBS-L

Appearance : Light yellowish-green transparent liquid

Uv absorption : 114-228

Maximum absorption wavelength : 349nm

Performance characteristics

Environmentally friendly products, avoid dust pollution during use, easy to use, easily soluble in water, can be mixed with water at any rate.

Use

Suitable for liquid detergents. Soap. Soap and other washing products can also be used directly on cotton. Optical whitening of linen, silk, wool, nylon and nylon at room temperature.

Recommended dosage

It can be directly added to the slurry for detergent, and can also be directly used for fabric whitening, and the ultraviolet absorption is very different.

 

3

FWA  CXT

Appearance : White or light yellow uniform powder

Uv absorption : 370±10

Maximum absorption wavelength : 350nm

Performance characteristics

The color is blu-ray violet, acid resistance, perborate resistance, unstable to chlorine bleaching, light fastness is 4.

Use

Used for washing powder can make its appearance white and pleasing to the eye, crystal full; Can also be used in cotton fiber, man-made fiber, polyamide, Vinylon. Protein fibers. Whitening of amino plastics.

Recommended dosage

① The amount of washing powder is 0.1-0.2%.

② The yellowing point of pure cotton white cloth is 0.42%, and the recommended dosage is 0.1~0.4%.

 

4

FWA  AMS

Appearance : White or light yellow uniform particles

Uv absorption : 560±20

Maximum absorption wavelength : 350nm

Performance characteristics

Environment-friendly products avoid dust pollution during use.

Use

To be used in synthetic detergents, including laundry powders and laundry detergents.

Recommended dosage

The recommended addition amount in laundry powder is 0.1~0.15%, and the recommended addition amount in laundry liquid is 0.1~ 0.3%.

 

5

FWA  DMS

Appearance : White or light yellow uniform particles

Uv absorption : 416±10

Maximum absorption wavelength : 350nm

Performance characteristics

Environment-friendly products avoid dust pollution during use.

Use

It is mainly used in washing powder for synthetic detergents.

Recommended dosage

The recommended addition amount is 0.1 to 0.2%.

 

6

FWA  FBCW

Appearance : White or light yellow uniform particles

Uv absorption : 436±13

Maximum absorption wavelength : 350nm

Performance characteristics

Environmentally friendly products, with excellent cold water dispersion performance, low temperature can also show satisfactory whitening effect.

Use

It is mainly used in washing powder for synthetic detergents.

Recommended dosage

The recommended amount is 0.1 to 0.15%.

 

EVERBRIGHT® ‘ll also provide customized :content/whiteness/particlesize/PHvalue/color/packagingstyle/ packaging specifications and other specific products that are more suitable for your use conditions , and provide free samples.


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