New-Type Fluorescent Whitening Agent NT-3 (FBA220)
Properties:
Appearance: Amber clear viscous liquid
Structure: A compound of diphenylethylene triazine type
Iconicity: Anionic
Resistance to acid and alkali: Suitable for PH2~12
Solubility: Soluble in water in any ratio
Applications: This product is especially suitable for whitening and brightening paper pulp, knitted goods and cotton fabrics. The whitening effect of VBL will decrease remarkably when the PH value is lower than 6, while NT-3, since more water-soluble groups have been introduced into its structure , does not only have a very good water solubility, but also has a much higher resistance to acid, and thus has a very good whitening effect on cellulose fiber even if the PH value is only 3~4.
Directions for use and dosage: Since NT-3 is a liquid, not so hard to dissolve as VBL and will not cause dust pollution, it is only necessary to weigh out it according to the whiteness required and dilute it in water in any ratio. The dosage recommended is as follows:
- For whitening paper pulp:3~10%¡£ on weight of dry paper pulp.
- For whitening knitted goods: 4~8g/l when using pad dyeing process, and if 2~4g anhydrous sodium sulfate is added in the padding bath, the whiteness of fabric will be greatly increased. 0.4~1.2% O.W.F.. when using dip dyeing process.
Packaging and storing: Packaged in plastic barrels, 50kg or 200kg each, or in tin-plated barrels, 200kg each. Stored in cool place and prevented it from being shone by light
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