US1623340A - Soap compound and process of making the same - Google Patents

Description

Patented Apr. 5, 192?.

HlTGO HENRY SON, OF BANGOR, MAINE, ASSIGNOR TO TARRATINE MANUFACTUR- ING CO. INC., 0]? BANGOR, MAINE, A. CORPORATION OF MATHE- SOAP comrounn AND rnoonss on MAKING THE. sans.

No Drawing.

This invention relates to soap compounds and to processes of manufacturing them.

It is the chief object of the invention to develop a soap compound which will be entirely satisfactory for general toilet and household purposes while at the same time being suitable for use under an unusually Wide variety of conditions. The invention also aims to produce a soap which will be unusually efiective in removing dirt and grease, either from the person or from clothing or other articles, and which, at the same time, will not be injurious to the skin as are the common soaps used for such purposes.

In many localities the Water available is very hard; that is, it contains mineral salts which react with the soap to form insoluble compounds, thus precipitating the soap and rendering it practically useless. This is true of the water supply in a great many inland locations, and it is the condh tion which obviously obtains on ship board, or wherever salt water is used.- It is one of the objects of the "present invention, therefore, to produce a soap which will be entirely satisfactory for use in salt or hard waters'as well as in soft water.

' The manner in which I have found it possible to accomplish these objects will be readily understood from the following description, and the novel features of the inventionlwill be particularly pointed out in the appended claims.

According to the process at present preferred," a quantity of some good, neutral, substantially pure, vegetable oil soap is dissolved in a mixture of neutralized sulphonated 'castor oil and water. There are many commercial soaps which answer the requirements just specified, as will readily be understood by those skilled in this art, and any of these soaps may be used. Preferably, about, one hundred parts, by weight, 'of soap are dissolved in fifty parts of oil and seventy parts of water. The proportions, however may be varied considerably. From forty vto sixty parts of oil may be used with from eighty to one hundred and twentyparts of soap. The weight of water should, be equal to the weight of the oil, plus Application filed January 6, 1923. Serial No. $11,178.

an additional quantity equal to from 5% to v 15% of the total weight of the previously mentioned quantities of oil, water and soap. Usually the weight of this additional quantity of water is 10% of the total weights of oil, water and soap mentioned. In this connection it should be understood that commercial sulphonated castor oil is usually mixed with a certain quantity of water, and itis sold as a grade, 75% grade,

or thelike, depending on the proportion of water that it contains. This fact should be recognized in proportioning the ingredients. The weight of oil above given assumes that it contains no substantial percentage of water.

The soap may be dissolved in the water and the oil then added, but it is somewhat more convenient to place all the ingredients in the desired proportions in a suitable conrelatively thick liquid resulting from this step of the process is allowed to cool until it reaches a temperature of approximately 95 F. It is then beaten in any convenient form of apparatus until it assumes the consistency o a fairly stifi' cream, This beating operation may conveniently be performed in a mixer such as that used in the manufacture oft-soaps, paints, and the like. I- find it preferable to run the mlxer at a relatively slow speed, say about twenty-five revolutions per minute, for about fifteen minutes and. then to increase this speed to about. slxty revolutions per minute, maintaining this higher speed for about ten minutes. If the mixer is run too fast it tends to beat in so much air that. it makes.

the cream too light and spongy. The cream at the proper-honsistency is fairly stiff at ordinary temperatures and has a.v specific gravity of about .6. I

For many purposes it idpreferable to add to the ingredients, before or during the forthe purpose of protectingthe skin of mixing operatiomi-about 5% of glycerine,

the user. It is preferable, also, although not necessary for most purposes, to add about of sugar since this increases the latliering properties of the soap. Of course any desired perfume may be added.

I find that a soap made as. above described is especially.effective in removing dirt and grease either from the hands or from fabrics and the various articles that must be washed. This is true not only when the soap isused in soft water, but also in salt and hard waters. It does not attack the skin of the user as do the common soaps and it therefore is less injurious. In fact, it is a very satisfactory soap for shampooing. Furthermore, it is absolutely harmless to even the most delicate fabrics. It can be used with great satisfaction for laundry purposes and in washing machines, and it is unusually effective in removing greasy dirt from the hands, particularly the grime with which the hands become covered in working on automobile parts, machine parts, and the like.

When this soap composition is dissolved in about an equal weight of paraflin oil it forms a compound especially efficacious in cleaning ink from type, removing printers ink from the hands, and for similar uses; The paraflin oil added to the cream stifiens the mixture so that the compound is even thicker in consistency than in its original condition.

While I have described above the method and the ingredients which I prefer to use, it will be understood that these factors may be varied in some particulars. For instance, other sulphonated oils may be used, although I consider sulphonated castor oil much preferable to any of the others. A caustic soap also can be substituted for the neutral vegetable oil soap above described, but in making any of these substitutions some advantages of the soap above described are lost. At the same time the compounds produced by making such substitutions are more valuable for many purposes than ordinary soaps.

I have found that when a soap compound of the character above described is mixed with cold cream, or with the essential ingredients of cold cream, it produces a new compound combining certain of the qualities of both cold cream and soap. Such a com-' which consists .sequently be removed simply by washing with water. This is accomplished without any undesirable action on the skin. In fact,

wax and spermaceti, and a mixture of equal I parts of these substances is used with the soap compound above described, the sugar and glycerine being omitted if desired.

Having thus described my invention, what I desire to claim as new is:

1. The process of making a soap compound in dissolving a neutral vegetable oil soap in a suflicient quantity of a mixture of water and neutralized sulaction, allowing the mass to cool, and then.

beating said liquid until it assumes the consistency of a stifi' cream.

The process of making a soap compound which consists in placing from forty to sixty parts of a neutral vegetable oil soap in a suitable container with from' eighty to one hundred twenty parts of neutralized sulphon'ated castor oily and a quantity of water substantially equal to the weight of oil used plus an additional quantity equal to from 5% to 15% of the total of the previously mentioned weights of oil, soap and water, heating said ingredients and thereby causing the soap to dissolve in the oil and water, allowing the resulting solution to cool and then stirring it until it assumes substantially the consistency of a stiff cream at normal temperatures.

4. The process of making a soap compound which consists in placing from forty to sixty parts of a neutral vegetable oil soap in a suitable container with from eighty lo one hundred twenty parts of neutralized sulphonated castor oil and a quantity of water substantially equal to the weight of oil used plus an additional quantity equal to from 5% to 15% of the total of the previously mentioned weights of oil, soap and water,

heating said ingredients to a temperature of approximately 175 F. until the soap has been dissolved in the oil and water, subsequently cooling the mass to approximately.

95 F., then-beating the resulting solution slowly and subsequently increasing the rate of beating until the mass assumes the consistency of a stiff cream.

5. A. soap compound comprising from eighty to one hundred and twenty parts of a neutral vegetable oil soap dissolved in from forty to sixty parts of sulphonated Castor oil With a quantity of Water slightly in excess-of the Weightof the oil.

6 A soap compound comprising from eighty to one hundred twenty parts of a neutral vegetable oil soap dissolved in from forty to sixty parts of sulphonated castor oil with Water equal to the weight of the oil lus an additional quantity of Water equa to from five to fifteen per cent of the total of the previously mentioned Weights of oil, soap and Water.

7. A soap compound comprising from eighty to one hundred twenty parts of a neutral vegetable oil soap dissolved in from forty to sixty parts of sulphonated Castor oil and from forty-five to eighty-five parts of water.-

HUGO HENRY HANSON.