P-sizex 25 Anionic Surface Sizing Agent

Application

P-SIZEX 25 is usually applied in the size press / metering size press in combination with starch, but it can also simply be diluted with water. It can be added in batches or continuously, the latter method being more versatile in that it enables levels of addition to be adjusted more quickly as circumstances demand. The paper does not necessarily have to be sized at the wet end before P-SIZEX 25 is applied, but this can be an effective means of controlling the extent to which the size solution is able to penetrate.

The recommended concentration 5 g/l and 20 g/l of PSIZEX 25 are required for hard-sized paper, if it is applied on size press in water, depending on factors such as whether any size is added at the wet end, etc.

It is compatible with the non-ionic and anionic auxiliaries that are applied to paper in the size press/metering size press. P-SIZEX 25 has no detrimental effects on brightness, and it does not impair the fluorescent activity of optical brighteners.

Compatibility

P-SIZEX 25 can be combined with starch, direct dyes, acid dyes, fluorescent brighteners and other anionic and nonionic substances, but it is always advisable to take the precaution of testing its compatibility in advance.