JHFZ-722 liquid whitening agent (disulfonic acid)

1. Main technical indicators:

Molecular formula: C40H42N12S2O10Na2

Relative molecular weight: 960.94 (Based on the 1997 international relative atomic mass)

Maximum UV absorption wavelength: 348nm

Executive standard: HG/T3990-2007

Fluorescence intensity (equivalent to standard) score: 35 ± 1

Color light: blue light, near neutral white

Appearance: Amber liquid

Viscosity: ≤ 50mPa. s (25 ℃)

PH value: 8-11

Density: 1.10-1.20 g/cm3

Ionic: Anionic

2. Feature:

2.1 This product is refined by a special process, with excellent whitening effect and high fastness to sunlight and water washing.

2.2 Good alkali resistance and peroxide resistance, suitable for oxygen bleaching and one bath whitening method, and is the latest product to replace VBL.

2.3 It can be mixed with water in any ratio, without dust pollution, and has high cost-effectiveness.

3.  Applicable scope:

3.1 Suitable for whitening pure cotton, polyester cotton fabrics, and paper.

3.2 Cellulose fiber fabric discharge printing can enhance the whiteness of the discharge printing and make it more aesthetically pleasing.

3.3 Light colored cellulose fiber fabric enhances its luster. Making a light colored cotton fabric brightener can enhance the brightness and brightness of cotton fabrics

3.4  Making a whitening agent for white patterned fabric can make the color bright, clean and beautiful, enhance the contrast between the color and the background, and make it more beautiful and pleasing to the eye.

4. Usage:

4.1 Dip dyeing and whitening: dosage 0.1-0.2% (o.w.f), anhydrous sodium sulfate 5-20g/L, bath ratio 1:5-1:40, pH value 7-9, temperature 20-40 ℃, time 20-30 minutes, drying temperature 70-80 ℃ is appropriate.

4.2  Pad dyeing and whitening: dosage 0.5-3 g/L, penetrant 0.25-0.5 g/L, pH 7-9, dip and dry.

4.3 Sizing and Whitening: Bleached fabrics or deep colored cotton fabrics can be whitened by adding fluorescent whitening agents of approximately 1-2 grams per liter during the finishing process, followed by soaking, drying, and polishing.

5. Packaging and Storage:

Packaging: Packed in 25kg, 50kg, and 1000kg plastic drums.

Storage: This product is suitable for dark storage at 5 ℃ -40 ℃.

Storage period: 12 months.