The maximum UV absorption wavelength: 350 nm
Quality Index:
Item | indices |
For textiles | |
1) Appearance | yellow-green or light green powder |
2)UV UV absorption (by E) | ≥296 |
3) whitening strength (with standard products) | 100±1 |
4) Light colors (with standard product) | Bluish shade |
5) Moisture content, % | ≤ 5.0 |
6) water-insoluble impurities, ％ | ≤ 0.5 |
7) Fineness (425μm aperture sieve residue), ％ | ≤ 5.0 |
Performance and features:
Fluorescence intensity, enhance whiteness, high yellowing points.
There are alkali perborate, hydrogen peroxide and other properties.
Scope:
4BK fluorescent brighteners for cotton, linen, silk, nylon and blended fabric whitening.
Instructions:
Bleached cloth whitening
Dosage: 0.1-0.4 (o.w.f)
Bath ratio: 1: 10-30
Dyeing temperature: 80-100 ℃
Holding time: 30-60 minutes
Oxygen bleaching whitening one bath
Dosage: 0.1-0.4 (o.w.f)
H2O2: 10g / L NaOH: 1-3 g / L
Na2SiO3: 2.5g / L detergent: 1g / l
Bath ratio: 1: 8-20
Dyeing temperature: 90-100 ℃
Holding time: 30-60 minutes
Packaging, transportation and storage:
25Kg or 50 kg drum, we can also customize packaging according to customers’ requirements.
Room temperature storage for two years.
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