The extraction of pulp from waste paper is of increasing significance. There is an increase in the quantity of use, as well as in the development of new possibilities for use. Due to these developments, the raw materials resources are spared, and loads on the environment from processing cellulose are avoided.

At the same time, efforts can be seen which work towards an even more environmentally friendly de-inking procedure. Soap-based collector chemicals are an important contribution in this context, since the calcium soaps formed during the de-inking process are generally recognised as physiologically safe and environmentally neutral.

As a result of these trends, however, the demands on the quality of the de-inked pulp, and therefore also the demands on the used auxiliary agents, are increased, as well. In addition to the brightness, ash content, reduction of pinholes and stickies with the least possible loss of fibres play an important role today.

Soap-based products

LIGANOL KT/N
LIGANOL KT/V

The basis of this collector chemical available in granule form are soda soaps of selected fatty acids. LIGANOL KT/V is produced on vegetable basis.

LIGANOL PSF 1

This is a liquid collector on soap basis. The main area of use is the tissue area or the use as second collector chemical, e. g. in secondary flotation. In addition to a good increase in brightness, the product ensures efficient reduction of pinholes and stickies. It is possible to use it in the neutral or pseudo-neutral area.

Fatty-acid based products 

LIGANOL S

This product provides the user with a collector on the basis of special natural fatty acids which is liquid at room temperature. This ensures simple handling and good saponifiability.

LIGANOL OST
LIGANOL D2

Both products are offered primarily as liquid hot collectors. The special selection of the fatty acids guarantees good saponifiability. Therefore, direct dosage into the pulper is possible. LIGANOL OST is also available as a spray.

LIGANOL FSD

Due to the dispersed form of the fatty acids, simple handling and quick saponification during use is guaranteed. Therefore, the product is mainly used as additional collector, however, it may also be used as main collector thanks to additives supporting flotation.