US1933021A - Preparation for use in curling hair - Google Patents

Description

Patented Oct. 31, 1933 UNITED STATES .PREPARATION FOR USE IN CURLING HAIR Frederic Maeder, Adelaide, South Australia, and

Brian Moir Wilson Sims, Westbourne Park,

South Australia, Australia; said Sims assignor to said Maeder No Drawing. Appli cation August 7, 1930 Serial No. 473,760

2 Claims.

This invention relates to the formation or production of hair waves or curls whether of the type that are known as permanent, or marcel, or other waves or curls, and in particular it relates to the use of a new preparation for application to the hair that will ensure the production of a much better and more natural looking wave or curl in a much shorter time than with preparations heretofore used.

The usual practice in the formation or production of permanent hair waves or curls is to wind or twist the hair upon very thin rods, and then to apply thereto a solution or a pad containing a chemical preparation, 'usually a preparation of borax, and then to apply. heat or steam thereto. The usual practice in the formation or production of Marcel waves or curls is to use special tongs which have been previously heated, but without the application of any solution. Permanent waves or curls could only be produced, up to the present, by tightly twisting or winding the hair on very thin rods, the effect being to produce small curls.

After numerous, prolonged and careful experiments with a great variety of substances we have discovered that the hair can be most effectively treated by means or a preparation of keratin which, although a substance known to pharmaceutical chemists, has not been used up to the present in connection with hair waving orcurling treatment.

Our invention comprises broadly a preparation in which keratin is used in combination with a solvent or vehicle such as an aqueous solution of ammonia and alcohol in which the keratin isdissolved or suspended or otherwise held in suitable manner so that when applied to the hair and heated the keratin will enter the pores of the hair, the solvent or vehicle being such that it will not damage the hair when so applied.

The keratin cannot be brought into solution by direct treatment withliq. ammon. B. P. (liquor ammoniae B. P.) in suflicient quantity to make the result eil'ective; it is necessary therefore to use the liq. ammon. fort. B. P. (ammoniae liquor fortis B. R) an aqueous ammoniacal solution approximately three times as strong. The ammaniacal strengthof a solution made with liq. ammon. tort. B. P. would make it impossible to use it onthe hair without serious damage thereto. and therefore it must be diluted. Consequently it is necessary to produce our preparation in two eps.

In making our preparation we prefer to bring the keratin into solution in liq. ammon. fort. B. P.

and alcohol according approximately to the formula:

Keratin 1 oz "150 grains Liq. ammon. fort. B. P. 8 oz. Alcohol 8 oz.

We then take of this solution 6 drachms and make it up with liq. ammon. B. P. to 4 oz; liquid measure. This solution is the strength that is used upon the hair.

We do not limit ourselves to the particular strength of solution stated, but this strength gives a most satisfactory result and is what we prefer for hair of average texture. For very fine hair treatment with a slightly stronger solution than that mentioned is preferable, whereas hair of a heavier texture gives better results if a slightly weaker solution be used.

By means of our invention it is possible to use, in the formation of permanent waves or curls, not only very thin rods but also much thicker rods, the result being the production of much larger and consequently more natural permanent waves or curls. In the formation or production of Marcel waves or curls our solution is applied be- 1. A preparation for the purpose set forth comprising a solution of keratin in an aqueous and alcoholic solution of ammonia.

2. A preparation for the purpose set forth comprising a solution of keratin with liq. ammon.

fort B. P. and alcohol (in the proportion approximately of keratin 1 oz. 150 grains, liq. ammon. fort. B. P. 8 oz. and alcohol 8 oz.) mixed with liq. ammon. B. P. in the proportion of 6 drachms of such solution of keratin made up with liq. ammon. B. P. to approximately 4 oz. liquid measure.

FREDERIC MAEDER.

BRIAN MOIR WILSON SIMS.