INTRODUCTION
AQUATITE increases the surface strength of paper and decreases the air permeability to a greater extent than a film of starch alone at the paper surface. Although it is not added in the wet end, it has a close relation and interaction with wet end additives. Like any wet end sizing agent, it reduces the tendency of water to penetrate into paper.
AQUATITE is very effective in a wide pH range i.e. for acidic, neutral or alkaline base paper. Its effectiveness greatly improves if the paper has enough internal sizing. A good internal sizing helps to keep the size press starch film near the surface.
AQUATITE can be used conveniently in combination with other surface sizing additives. All these features make AQUATITE a great size press additive to achieve:
- increase surface strength i.e. wax pick
- decrease air permeability
- increase stiffness
- improve printability
METHOD OF
PREPARATION
It is supplied in ready to use form and its measured quantity is to be added in the prepared surface sizing solution.
BROAD TECHNICAL SPECIFICATIONS
Appearance
: Light yellow liquid
Nature
: Anionic
pH
: 8.0 – 9.0
Solubility
: Soluble in water
Specific gravity
: 1.03-1.04
Hazard
: Non-hazardous, Non-inflammable
Viscosity (Brookfield) :
450 + 50 cps @ 25 °C
Stability
: Good stability even at high temperatures at which
Surface sizing solution is re-circulated.
RECOMMENDED DOSE AND POINT OF ADDITION
Recommended dose of 5 – 10% on weight of starch should be added in the prepared surface sizing solution. For example in a mill where 20 Kg. of starch is added per Tonne of paper, this chemical is to be added 1 to 2 Kg. per Tonne of paper.
AVAILABLE PACKING It is available in 25/50 Kg. non-returnable drums.
STORAGE INSTRUCTIONS
No special care is required. It should be, however, stored under covered area. Shelf life is app. 6 months.
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