The Procter Gamble Company

Paul R Sherrington

John Bailey

Michael John Randell

Victor Stuart Reid

Robert Michael Pettifer

Leslie Hugh Cassie

Shirley Summers

Paul Van Roo

Detergent compositions or components are formulated with certain hydrophobically modified cellulosic materials, which provide protection of fabrics, whereof at least 80% or even at least 90% have a particle size of below 1000 microns or even below 850 or even 710 microns. Selection of materials of this particle size results in improved dispersability of the cellulosic material and imparts improved appearance and integrity benefits to fabrics and textiles laundered in washing solutions from such compositions.

Detergent compositions or components

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.

Growing community of inventors

Newcastle upon Tyne, United Kingdom

Paul R Sherrington