COLLOIDAL CLAY IN SOAP MANUFACTURE

COLLOIDAL CLAY IN SOAP MANUFACTURE

[Consul Irving N.Linnell, Plymouth, England, Mar. 3, 1920]

The principal export to the United States from the consular district of Plymouth, England, which includes the counties of Devon and Cornwall, is China clay, in which this part of England is very rich.

The following table shows the exports to the United States during the past seven years:

The exports of this commodity to the United States are increasing rapidly at present and many new clay works are now being developed.

It is thought, therefore, that importers of this commodity as well as soap manufacturers and others would be interested in the chemical researches into the properties of and uses for colloidal clay which is prepared from china clay.

In an article appearing in the Chemical Age for January 17, 1920, the possible uses of colloidal clay in soap manufacture are set forth at length. Briefly, he states that the lathering and detergent properties of soap are greatly increased and that the lather is of a firmer nature and is more persistent when colloidal clay is added. His experiments also show that the amount of colloidal clay soap required to convert a given quantity of water completely into lather is about 60 per cent, of that required when using soap only.

He states further that while alkalies are useful in increasing the lathering detergent properties of soap, they are harmful to the skin and to textiles.

Colloidal clay, on the other hand, is not only harmless to the skin and textiles, but is beneficial to the skin, acting as an emollient and a germicide.—Commerce Reports.

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