China Fluorescent Brightener 4BK-B - China Supplier

Fluorescent Brightener 4BK-B

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Contact Info
  • Add:浙江上虞道墟径口, Zip: 312368
  • Contact: 梁总
  • Tel:0575-82041746 82042660
  • Email:zhengkang@2003sy.com

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Description
Additional Information

[Main Ingredients]

 Stilbene Type

[Technical Specifications]

 

Appearance: Light yellow uniform powder
Shade: Reddish purple fluorescence
Ionicity: Anionic
Fluorescence intensity: Equivalent to standard sample
Moisture (%): ≤5.0

[Performance and Characteristics]

 

1. Highly effective fluorescent whitening effect with strong whitening power and bright, vivid shade (slightly bluish-purple).
2. Insensitive to light and chemically stable.
3. Resistant to weak acids, alkalis, hydrogen peroxide, and perborates; suitable for alkali-oxygen one-bath processing and pad dyeing.
4. Excellent wash fastness.

[Application Range]

 Suitable for whitening and brightening cotton, hemp, viscose, nylon, and their blended fabrics

[Usage Methods]

 1. Exhaustion dyeing method:
Dosage: 0.1-0.8% (o.w.f) Bath ratio: 1:10-30
Temperature × Time: 95-100℃ × 30-40min, rinse, dry
(May add Glauber's salt or common salt 10-20g/L as appropriate)
2. One-bath scouring, bleaching, and whitening method:
Dosage: 0.2%-0.8% (o.w.f) Hydrogen peroxide (30%): 5-15g/L
Scouring agent SH-A: 3-5g/L
Bath ratio: 1:10-30
Temperature × Time: 95-100℃ × 30-40min, rinse, dry

[Packaging and Storage]

 

50 kg paper drum with inner plastic bag. Store in a cool, dry place away from light for 6 months.

This product information is for reference, research, and identification purposes only. Users should determine the optimal process and dosage based on specific processing products and actual production conditions.

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