US1710975A - Process of dry cleaning and composition for use therein - Google Patents

Description

Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE.

LEE HAGER AND JOHN POPPERMAN, OF HOUSTON, TEXAS, ASSIGNORS TO PINE-O- PINE COMPANY, OF HOUSTON, TEXAS, A CORPORATION OF TEXAS.

PROCESS OF DRY CLEANING AND COMPOSITION FOR USE THEREIN.

No Drawing. Application filed July 13,

This invention contains new and useful improvements in a detergent and dry cleaning composition for use in dry cleaning plants, and includes also the use of the same in dry-cleaning. The said detergent and its use in laundering, are covered in a separate Case 106,752 filed May 4, 1926.

This invention is designed to provide a composition of ingredients to be used:

In laundries, in the process of Washing, to take the place of caustic soda, soda ash, or other form of soda and to reduce the consumption of soap commonly used in laundering and to eliminate the use of the special dry-cleaners soap commonly used in dry cleaning.

A further object is to produce a composition and a detergent particularly suited for use in dry cleaning process, etc., for the purpose of neutralizing and eliminating the odor of gasoline in the garments and for the purpose of cleaning and clarifying the gasoline used in the dry cleaning process.

WVith the above and other objects in view, this invention has particular relation to a novel composition of ingredients as specified herein, and the use thereof in dry cleaning.

The composition consists of the reaction products produced from pine oil, caustic soda and water, and rosin. Caustic soda is here mentioned as the most economical form of caustic alkali to be used. We prefer this instead of the other caustic alkalies.

The ingredients in order to obtain the best results are to be combined in substantially the following proportions, to-wit i Per cent. Pine oil, with or without turpentine 62.2 Rosin 24.6 Caustic soda (solid substance) 3.8

Water 9.4

The above ingredients in the proportions stated may be combined as follows First, mix the rosin and pine oil in a double boiler, and raise the temperature of this mixture to approximately 190, maintaining this temperature with occasional stirring (say once in 20 minutes) until the rosin is all dissolved, which may require 3 to 4 hours.

In a second container mix caustic soda 1925. Serial No. 43,416.

(which is a solid) and water in the amounts stated above, stirring the same until the caustic soda is thoroughly dissolved, then slowly pour the solution of caustic soda and water into the first mixture, stirring the whole for approximately thirty minutes or until the whole is thoroughly mixed; then the product may be covered tightly and allowed to cool gradually and when cool the composition is ready for shipment or use.

lVhen used in the dry cleaning process, the composition is preferably first mixed with twice its own quantity of gasoline. This produces a clear solution which then may be mixed with gasoline in the dry clean ing wheel or drum in the proportion of from one to three quarts of the solution (equivalent to one-third quart up to one quart of the original material), to forty gallons of gasoline. For best results we propose to employ the proportions of about 11 to 32 ounces of the detergent to 40 gallons of gasoline. This proportion will vary with the nature and condition of the fabrics to be cleaned.

This used as a detergent has the following properties Consisting chiefly of pine oil, is a strong solvent of oils, fats and grease. Added to the gasoline, it greatly assists the latter in removing said oils, fats and grease of every kind from the. fabrics treated. The solid dirt is thereby loosened from the fabrics.

Being a powerful deodorant it tends toneutralize and destroy the disagreeable odor of gasoline in the garments. This cuts down complaints and hast-ens the time of delivery.

The composition has the pro )erty of hold ing dirt in suspension while is e mixture is 5 being agitated. After running the dirty gasoline into the clarifying tank the fine particles of dirt and dust removed from the fabrics by the mixture of gasoline and detergent, will settle out, whereby the gasoline becomes clarified for further use.

Then using this composition with gasoline it is unnecessary to use ammonia. acetone,- dry cleaners soap (i. e. special soap commonly used with gasoline in dry-cleaning operations), acetic acid, alcohol and other 5 and gasoline can be used by materials now commonly used in conjunction with gasoline in'the usual dry cleaning processes.

Obviously the mixture of the detergent hand or in other ways, without the drum above men tioned.

We claim:

1. A composition suitable for drycleaning 10 comprising the reaction products of a small amount of caustic alkali, a larger amount of rosin and a still larger amount of pine oil, in which the pine oil is at least suflicient to dissolve the rosin, and the caustic alkali is at least sufiicient to saponify the rosin, such product being mixed with 2 to 480 times its own bulk of gasoline.

2. A composition suitable for dry-cleaning comprising the reaction products of caustic alkali equivalent to about 38 parts of caustic soda, about246 parts of rosin and about 622 parts of pine oil, such product being mixed with about 2 to 480 times its own bulk of