Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1960500 A
Publication typeGrant
Publication dateMay 29, 1934
Filing dateFeb 26, 1930
Priority dateJul 2, 1929
Publication numberUS 1960500 A, US 1960500A, US-A-1960500, US1960500 A, US1960500A
InventorsLuigi Longo
Original AssigneeLuigi Longo
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1960500 A
Previous page
Next page
Description  (OCR text may contain errors)


Patented May 29, 1934 UNITED STATES Cross Reference PATENT OFFICE WASHING-FLUID Luigi Longo, Rome, Italy No Drawing.

Serial No. 431,652.

4 Claims.

Liquids, waters, lyes or washing fluids as generally used for washing, bleaching and disinfecting purposes and prepared with the aid of chlorine, have the drawback that in use they develop very disagreeable exhalations which remain in the cleaned articles.

According to the present invention this drawback is avoided by adding to the said liquids, waters, lyes or washing fluids for cleaning, bleaching or disinfecting purposes, also for example of pavements, tables, marble, glass, water-closets and so on, and which will hereafter be referred to as washing fluids, a very small quantity of a natural or synthetic perfume in a liquid or solid state and dissolved in alcohol. The addition of this perfume will thoroughly eliminate or at least reduce the chlorine exhalation so that in this way it is possible to obtain a concentrated or, if desired, a diluted washing fluid, which will be perfumed or scentless, and will always maintain its detersive and antiseptic powers, no matter whether it is used hot or cold.

Thus according to the invention, remarkable advantages may be obtained by dissolving a small quantity of a synthetic or natural perfume in alcohol and then adding this solution to the washing fluid. By applying this invention to washing fluids the greatest effect will be obtained from the perfumes, and these perfumes need only be used in small quantities and be combined with only small quantities of alcohol. The expense is thus quite small and this advantage, together with the powerful effect, is conducive to a cheap manufacture of strong perfumed washing fluids, which up to now have been very expensive and therefore have not met with a commercial success, while at the same time are avoided such drawbacks as a large loss of time, an increased number of workmen, and an additional expense for the use of other chemical substances such as magnesium salts or the like.

On account of the specific weight and the nature of most of the essences, odorous oils, synthetic or natural perfumes which may most conveniently be used for such purposes as those of the invention, when they are not dissolved in alcohol and are not used. in solution, and they are desired to disperse themselves in a liquid mass or mixture, an inconvenience is encountered. In fact, it has been found that these essences and the like, if they have not previously been dissolved in alcohol or are not used in solution therewith, will not disperse themselves to the required extent in the liquid mass and will therefore float on the surface of the liquid and. will rapidly Application February 26, 1930,

In Italy July 2, 1929 evaporate. This drawback is avoided by the invention which proposes to previously dissolve the perfumes in alcohol.

The following are some examples of a washing fluid prepared according to the invention.

1st exampZc.--200 gr. of hypochlorite of calcium, 1000 gr. of sodium carbonate, in crystallized or powdered form, 14 litres of water, 21 cu.-cm. of hydrochloric acid at approximately 20 B., 100 gr. of borax, 21 cu.-crn. of ammonia at approximately 20 B., 14 cu.-cm. of turpentine, 7 cu.-cm. of alcohol and 140 drops of nitrobenzene or methyl salicylate or a mixture of both, the ammonia being replaced, if desired, by a suitable quantity of carbonate of ammonium.

This concentrated fluid presents the following advantages: it does in no way corrode the linen although it preserves entirely all the best qualities of the strongest washing fluid; it renders the linen spotless white; the turpentine and ammonia save a great quantity of soap; it has a high detersive and disinfecting power; it can be prepared at a small cost considering the results obtained therewith; it cleans and perfumes immediately pavements, marble and the like; its stain and spot removing power is surprising and it completely removes spots and the like, more particularly from linen, it being necessary, for old spots and stains, to use concentrated solutions; it is thus an excellent washing fluid more particularly for linen; it is extremely cheap and does in no way damage the tissues of household linen, which are cleaned a pure white; it does not chap the hands like ordinary washing fluids.

2nd example-Water 50 litres, hypochlorite of soda at 30 B. 7,5 litres, sodium carbonate 500 gr., caustic soda 100 gr., alcohol 15 cu.-cm. and nitrobenzene 5 cu.-cm.

3rd exampZe.-Water 50 litres, hypochlorite of soda at 30 B. 7 litres, sodium carbonate 500 gr., borax 100 gr., caustic soda 100 gr., alcohol 15 cu.-cm. and oil of mil-bane 5 cu.-cm.

4th example-Hypmhlgrite of calcium 200 gr.,

carbonate sadailcooo gr., water 14 11mg, caustic so a 50 gr., alcohol 15 cu.-cm. and oil of mirbane 5 cu.-cm.

5th erampla-Hypochlorite of calcium 200 gr., carbonate of soda 100 gr., water 14 litres, hydrochloric acid 21 cu.-cm., caustic soda 14 gr., alcohol 1.500 cu.-cm. and methyl salicylate 30 drops or else oil of mirbane 28 drops.

The quality and the quantity of the perfumes to be used and their components as described in the above examples, and also the quantity of the Examiner alcohol, may be varied within the limits of the invention.

What I claim is:

1. A washing, cleaning, bleaching, deodorizing and disinfecting liquid, containing water, alkali and other ingredients forming lixiviums, and hypochlorite, and further containing a small quantity of perfuming agent, previously dissolved in alcohol and added to the liquid before the addition thereto of the hypochlorite.

2. A washing, cleaning, bleaching, deodorizing and disinfecting liquid, containing water, alkali and other ingredients forming lixiviums, and bypochlorite, and further containing a small quantity of nitrobenzene (mirbane oil), previously dissolved in alcohol and added to the liquid before the addition thereto of the hypochlorite.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2708940 *Jul 27, 1953May 24, 1955Gillette CoComposition and method of cold waving
US2938764 *Feb 25, 1957May 31, 1960Wyandotte Chemicals CorpHighly alkaline dichlorodimethylhydantoin bleaching solutions and methods
US3034851 *Oct 1, 1956May 15, 1962Du PontHydrogen peroxide-ammonium bicarbonate acidic bleaching composition and process
US5753217 *Aug 14, 1996May 19, 1998William C. ChristopfelMethod of reducing oral malodor
US6325997Dec 21, 1999Dec 4, 2001Oxyfresh Worldwide, Inc.Method of reducing oral malodor
U.S. Classification510/102, 424/687, 424/665, 510/499, 510/505, 8/108.1, 510/370, 424/76.9, 510/240
International ClassificationC11D3/50
Cooperative ClassificationC11D3/50
European ClassificationC11D3/50