Optical Brightener for Cotton with White Color Shade

• CAS No.: N/a
• Formula: N/a
• EINECS: N/a
• Certification: Gots
• Environmental Protection: Yes
• Color: Milky
• Model NO.: 4074
• Kind: Leveling Agent
• Appearance: Liquid
• Application: Pretreatment Auxiliary, Textile Printing Auxiliary, Dying Auxiliary, Post-Processing Auxiliary, Finishing Agent
• Transport Package: Plastic Drum
• Specification: 120KG
• Trademark: ZHONGSHI
• Origin: China
• Production Capacity: 100 Tons/Month

Product Description

Optical Brightener  SD-4074 

 

[Base features ]  

Appearance:	cream  to light gray powder
pH value:	7.0±1.0(0.5% aqueous solution)
Ionicity:	anion
Color tone :	Partial neutral light
Compitibility:	Compatible with non-ionic, anionic, silicate and enzyme preparations.
Stability:	Resistance to hydrogen peroxide bleaching, alkali resistance, insurance powder resistance and reduction bleaching

 

 

[Production description]

Cotton whitening agent SD-4074 is a stilbene derivative with high whiteness and a wide range of applications. It is a fluorescent whitening agent suitable for whitening cotton and its blended fabrics.

[Characteristic and advantages]

1.Suitable for whitening, bleaching and brightening  in the same bath.

2. High whiteness, strong fluorescence, less dosage, not easy to be stained, and easy to change materials.

3. Used in the bleaching of cellulose fiber, regenerated cellulose fiber and nylon fiber,special white processing technology.

4. At the same dosage, higher whiteness can be obtained than ordinary whitening agent

5.Wide range of pH value.

6. The dyeing temperature range is wide, and it is stable in hydrogen peroxide water.

7. It has good resistance to yellowing at high temperature.

 

[Application range  ]

   SD-4074 is best to adjust the slurry with cold water, and then dissolve with 80 ºC hot water to obtain a uniform solution, and then add it to the application bath or supplement liquid.

1. Dipping.

1) One-bath method:

Pre-treatment agent: 1.0 ~ 2.0 g / L

Alkali: 1.0 ~ 2.0 g / L

Hydrogen peroxide: 5.0 ~ 10.0 g / L

Hydrogen peroxide stabilizer: 1.0 ~ 2.0 g / L

SD-4085 0.1 ~ 0.3 %

Add pretreatment agent, hydrogen peroxide stabilizer, caustic soda, hydrogen peroxide, 4BK at room temperature, keep warm at 98 ºC for 45 to 60 minutes, cool down and drain, and neutralize the washing water to be too soft.

2) Two-bath method:

Pre-treatment agent: 0.5 ~ 2.0 g / L

Alkali: 1.0 ~ 2.0 g / L

Hydrogen peroxide: 5.0 ~ 10.0 g / L

Hydrogen peroxide stabilizer: 0.5 ~ 2.0 g / L

Add pretreatment agent, hydrogen peroxide stabilizer, caustic soda, hydrogen peroxide, 4BK at room temperature, keep warm at 98 ºC for 45 to 60 minutes, cool down and drain, neutralize the washing water and add white.

SD-4085: 0.3 ~ 0.5%

Yuanming powder: 0 ~ 0.5%

Add SD-4085 at room temperature, keep warm for 20 minutes at 60 ~ 70 ºC, cool down and drain, and the washing water is too soft

 

2. Padding

Pre-treatment agent: 3.0 ~ 10.0 g / L

Alkali: 3.0 ~ 10.0 g / L

Hydrogen peroxide: 10.0 ~ 50.0 g / L

Hydrogen peroxide stabilizer: 3.0 ~ 10.0 g / L

SD-4315   0.5 ~ 2.5%

Process flow: one dip and one rolling → drying (100 ºC) → baking

[Packaging and storage]

The brightener solution should be used with the preparation, not long-term storage

In the actual use process, if the water hardness is high, it is recommended to add some water softener or chelating dispersant

Avoid direct sunlight during storage, and prevent moisture absorption during transportation and storage

[Packaging and storage] 

30KG/plastic drum (lined with plastic bag).

Sorted in cool place ,prevent heated and  exposure ,stable period is 6 months.

 

 

 

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Certification 



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