The Procter Gamble Company

The Proctor 'gamble Company

John Bailey

Paul R Sherrington

Michael John Randell

Henri Cornette

Philippa J Rutter

Gilbert Laurenty

Gerard Bocquet

Jacky Pierre Duquet

Leslie Hugh Cassie

Aude G Bouraoui-Karoui

Paul Van Roo

Aude Bouraoui-Karoui

Device for the machine washing of clothes and the method of utilizing

Equipment for the machine washing of clothes and the method of utilizing

Detergent compositions containing orthophosphate and pyrophosphate builders in prescribed ratios and magnesium silicate are claimed wherein the final composition has a minimum amount of free alkalinity as NaOH. The compositions demonstrate superior whiteness maintenance and lower undesirable residual deposits on fabrics washed therein. The compositions optionally contain a small amount of a water soluble magnesium salt, e.g., magnesium sulfate and may also contain phosphate more condensed than pyrophosphate.

Built detergent composition

An aqueous slurry comprising an organic detergent, an alkali metal silicate and an alkali metal orthophosphate or an inert salt are dried to a low moisture content to form a detergent composition.

Process for preparing an orthophosphate-silicate detergent product

Detergent compositions utilizing alkali metal pyrophosphate as the principal detergency builder incorporate a phosphate builder mixture comprising from about 1% to about 15% by weight of the mixture of tripoly -- and higher polymeric phosphates and not more than 1% by weight of the mixture of orthophosphates Other types of builders both soluble and insoluble can also be present.

Builders and built detergent compositions

The present invention relates to detergent additive and detergent compositions containing an alkali metal ortho phosphate and silicas which are particularly effective in cleaning ability, whiteness maintenance, and in controlling water hardness.

Orthophosphate and silica-containing composition

Growing community of inventors

Ryton, United Kingdom

John Bailey