Process for the production of a washing additive in tablet form

Claim 1

A process for the production of a washion additive in tablet form containing on a weight basis of said tablet (1) 2 to 30% of at least one activator for per compounds (2) 2 to 30% of at least one nonionic surface-active compound, (3) 0.5 to 20% of at least one surface-active nitrogen-containing compound selected from the group consisting of quaternary ammonium compounds, fatty amine compounds, aminopropionic acid compounds, and mixtures thereof, (4) 0 to 5% of at least one water-soluble salt of an alkane polyphosphonic acid, and (5) 0 to 5% of at least one foam regulator, as wash-active ingredients, comprising the steps of: A. granulating component (1) while simultaneously mixing therewith components (2) and (3) as well as components (4) and (5) if present, together with tabletting aids; B. powdering the resulting granulate with a powder-form adsorbent; C. spraying the powdered granulate with a liquid binder, said liquid binder being a solution of cane sugar or sorbitol; D. drying the granulate to a water content of not more than 6% by weight to form a free-flowing granulate; E. mixing the dried granulate with at least one tablet disintegrating agent; and F. compressing the granulate into tablets of more than 30 mm in diameter and having a depth of 0.75 to 1.1 times their diameter but said depth being at least 25 mm, a density of from 0.8 to 1.2 g/cm 3 , a weight of from 15 to 50g, and a breaking strength of from 6 to 12 kg, whereby the tablets contain sufficient detergency-boosting ingredients for one load of washing.