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Fluorescent brightener BAC (acrylic)

◆ Property Index

Appearance: light brown liquid

Ionicity: cationic

Main ingredients: Benzimidazole derivatives

Color light: neutral to slightly blue Color light

pH value: 3-4

◆ Performance characteristics

1. Suitable for whitening processing of acrylic fabric and diacetate fabric;

2. Suitable for exhaustion dyeing and continuous processing technology;

3. Very stable to chlorous acid and hypochlorous acid compounds;

4. Excellent light fastness and wet fastness characteristics;

5. This product is an acrylic fiber special whitening brightener, and a very high whiteness effect can be achieved with a small amount.

◆ How to use

1. General processing technology of acrylic fiber

Dosage: optical brightener BAC 0.2-2.0% owf; formic acid or oxalic acid to adjust pH-3.0-4.0

Process: 95-98°C×30-45 minutes Bath ratio: 1:10-40

2. Subchlorine bleaching process of acrylic fiber

Dosage: optical brightener BAC 0.2-2.0% owf; sodium nitrate: 1-3g/L

Adjust pH-3.0-4.0 with formic acid or oxalic acid; sodium chlorite: 1-2g/L

Process: 95-98°C×30-45 minutes; bath ratio: 1:10-40

3. Processing technology of acrylic fiber/wool blended fabric

A. Oxygen bleaching process

        Hydrogen peroxide 35% 10-20ml/l, sodium pyrophosphate 1-2g/ Ciba ULTRA VON CN1-2g/l

        pH 8-9 (ammonia water is recommended) temperature × time: 50-55°C × 2-3 hours, bath ratio: 1:10-40

B. Acrylic fiber whitening process

        Fluorescent brightener BAC 0.5-2% owf, formic acid or oxalic acid to adjust pH: 3.0-4.0

        Temperature × time: 95-98°C × 30 minutes, bath ratio: 1:10-40

C. Wool reduction bleaching and whitening process

        Fluorescent bleaching agent BAC 0.25-1.0g/L, stabilized sodium hydroxide 1-3g/L, pH5-6

        Temperature×Time: 50-60°C×60-120 minutes


◆ Packing

30kg plastic drum or according to user requirements.

◆ Cautions

1. This product is a special whitening brightener for acrylic fiber. It must be dyed with sodium chlorite in the same bath to achieve the ideal whitening effect. It is best to use low-hardness water for dyeing to ensure fluorescent whitening. Full color development of the agent.

2. This product will release chlorine dioxide and strong acid during processing, which will have a certain corrosive effect on the equipment. Please be sure to use a stainless steel dye vat dyeing machine and add sodium nitrate to reduce the damage to the equipment.

3. The product information is for reference, research and appraisal only, and the company does not bear the responsibility and patent disputes caused by this.

4. If you have any technical or usage problems, please contact our company in time.

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