US1667993A - Shaving soap - Google Patents

Description

Patented May 1, 1928.

UNITED STATES ROBERT FORDAY SMITH, OF NEW YORK, N. Y.

SHAVING SOAP.

N Drawing.

This invention relates to shaving soap compositions and has for its particular objects the productionof a shaving soap either in the form of a solid or cream which has superior shaving qualities and is cheaper to manufacture than other grades of shaving soaps which have ii'lferior shaving qualities.

My investigations have led to the discovery that ordinary shaving soap compositions, which as is well known are capable of producing *a profuse lather when rubbed up with a brush, are very materially improved by the addition thereto of substantial quantities of very fine inert material such as talc,

soapstone, bentonite and the like.

To prepare my improved composition, I intimately incorporate with a shaving soap composition, which possesses the property of producing a profuse lather when rubbed up with a wet brush, a substantial percentage of inert material in the form of a very fine powder, such material being preferably ordinary talc powder of the type usually marketed for toilet purposes. The percentage of talc employed, while preferably 50% of the mixture may vary from 10% upwards, depending upon the character of the lathering properties of the soap composition employed and the character of the lather desired. For example, if a free lathering soap is employed and a persistent resist-ant lather is desired, I prefer to employ from to 50% by weight of talc powder in the mixture. However, even with shaving soaps which do not lather so profusely but are I capable of being classed as shaving soaps because of the free lathering properties thereof, I may employ but 10%. The employment of from 10% upwards of talc not only increases the resistance of the lathered hair of the shaver to the cutting edges of the blade, but also increases the persistence of the lather and reduces the danger of the scratching or cutting the skin of the user during the shaving operation. Furthermore, my improved soap-talc composition tends to materially prolong the life of the cutting edge of the razor blade, due undoubt-edly to the fact that the shaving operation is quickened and repeated passage of the blade over the same area of the skin to obtain a clear shave is obviated. Furthermore, the skin and the whiskers are made smooth by the tale and hence do not bend the microscopic teeth of the blade.

Preferably the tale or like inert material Application filed February 5, 1925. Serial No. 7,148.

is incorporated with the soap While the same is in a liquid condition before being formed into sticks or cakes, but when the shaving soap is to be produced in powder form the talc'or like inert material may be incorporated with the soap powder in a suitable mixer.

The following are typical examples of shaving soap formulae for producing soaps embodying my invention:

1.. Cold soap (shaving): 200 lbs. tallow, 25 lbs. cocoanut oil, 100 lbs. soda lye 38 Be, 12 lbs. potash lye'38 1%., 337 lbs. tale.

2. Half boiled soap (shaving): tallow, 20 lbs. cocoanut oil, lbs. soda lye 30 B6, 12 lbs, potash lye 30 Be, 197 lbs.

talc.

Preferably the tale is incorporated with the finished soap after the usual saponification process has been completed and the fats and oils have been converted into corresponding soda and potash soaps by the soda lye and potash lye employed.

Other advantages which my improved shaving soap possesses are that the cutting edge of the razor blade will glide over the face very much more readily than when ordinary shaving soap is employed as the talc impregnated lather tends to fill up the pores in manner that is impossible with ordinary shaving soap lather. Furthermore, the lather is less evanescent and persists for much longer periods than ordinary shaving soap lather and leaves the face smooth when removed by washing therefrom. Lastly, instead by increasing the cost of the finished shaving soap, whether in the form of a stick or cake or in the form of a powder or cream, my improvement materially reduces the cost thereof without impairing in any way theessential lathering qualities, as while the lather produced by my improved composition is in the form of a thick dense cream, it covers the face and softens the whiskers even. more effectively than the thin frothy cream produced by other shaving soaps thus causing the hairs to resist the passage of the blade thereover without being severed due to the increased resistance which is olfered by the same when lathered.

While in the foregoing example I have described a composition which is suitable for producing a product having the properties herein described, I do not intend thereby as restricting the invention to such 100 lbs.

compositions and other compositions within the scope of the appended claims which are comprised within the spirit of my invention. Furthermore, while in my preferred composition I have disclosed the use of approximately 50% of talc, it is understood that an excellent product can be made by employing 25% of talc or other percentages ot not less than 10% of talc or other inert mineral substances in finely divided form in lieu thereof which are capable of imparting to the finished product similar PI'OPGl'llCS to that imparted by talc.

Ha vinethus described my invention, what I claim and desire to obtain by Letters Patent of the United States is:

l. A shaving composition essentially consisting of a vegetable oil, potash shaving soap with which is intimately incorporated a substantialpercentage, and not less than 10%, of an inert mineral substance of a slippery nature, said composition being, free lathering and adapted to form a profuse persistent lather when rubbed up with a brush in the usual manner.

A shaving composition essentially consisting of a vegetable oil, potash shaving soap with Wl'lltllis intimately incorporated between 40% and 50% of tale in a finely divided condition, said composition being free latherin; and adapted to form a prot'nse persistent lather when ruhhed up with a brush in the usual manner.

3. A shaving composition essentially consisting: of a vegetable oil, potashv having soap with which is intimately incorporateda substantial percentage. and not less than 25%, of an inert mineral substance of a slippery nature. said composition being free lathering and adapted to form a profuse persistent lather when rubbed up with a brush in the usual manner.

Signed at New York, in the county and State of New York this 29th day of January 1925.

ROBERT FORDAY SMITH.