US828644A - Process of dry cleaning. - Google Patents

Description

J ULES DOUX, OF UTiCA, NEW YGRK.

PROQESS Of DRY @LEfiihllhlG.

Specification of Letters Patent.

letented fling. 3 Beat,

Application filed April 1, 1905. Serial 1%. 263,3"5.

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the process of cleaning and renovating all kinr s of raw stock--sueh as hair, furs, feathers, leather, and fiber, and textile fabrics either in the piece or in the form of apparel.

The object of my invention is to provide for rapidly, ell'ectively, and economically cleaning and renovating raw stock or menufactured fabric or other material without spreading dirt through the same or leaving a dirty stain thereon, due to dissolving and dili'using the dirt in the presence of water or moisture, as heretofore practiced, without eradicating it from the material under treatment and removing it with the cleansing fluid.

in conducting the operation of cleaning and renovating raw stock and manufactured goods I have found it important and essential that the cleansing fluid be practically free from water in order to obtain satisfactory re sults. Even a tenspoonful of Water in a large quantity of fluid will mix will e. quen tity of dirt and dii'luse it through a large batch of goods in the cleansing-machine, reapplying and distributing the soil to every article under treatmei'it, especially silk and cotton goods. The dirt thus diffused by the presence of Water imparts a dull cloudy appearance to the goods, so that none are thoroughly renovated'and given the bright new appearance so much desired. 1 have also discovered that commercial naphtha or benzin contains a small percentage of water, amounting sometimes to three or four ounces in a barrel. If the benzin when drawn from a tank presents a "foggy con dition, 1 know that Water is present, and in Order to remove I move a. dry towel through i i l l i l the fluid, thereby absorbing the ll) Water may also be removed by henzin or gasolei'ie thieugh cl nnois-s r in cleaning materials l. tr t the same with. petroleum hernia, and r the tern: i mean all de 'at in; e. do petrole- "5 uni known as 11mph in, gasd lenc," etc.

(ilesircd uantity of henmin i ing-maclgiine and the. anhydrous ammonia, w. mittcd at the bottom: oi t a perforated pipe. it is imp. that the zin'imonia be ai'ihydrous, (hi Z), so as to avoid the admixture of water W the cleaning fluid. Any moisture or wet the benssin is immediately nbsorheu oy ammonia. The nniterial to be cleansed is now placed in the preymred bath and sub jeeted. to a tation and washi' hand or power machinery. The anl'iydrous ammonia renders strongly alkaline and greatly cleaning and renovating operationv that it is shortened to one-quarter ti". Lime irinerly required. The materials or goods having been cleaned are treated in a centrifugal machine to remove liquid. and then dried.

Fresh benzin is occasional dded to the bath to replenish it and compei'isste for loss by evaporation and that which is removed with the goods.

As before explained, the goods com the treatment penectly loright and appearance. This is due to the benzin is practically from We the use of anhydrous henzin.

The soiledv henzin is oecasionall' 1 and distilled to exclude the dirt, i r which the condensed product may again be usedin a cleaning operation.

My ammoniated benzin or henzin rendered alkaline by nnhy solven nit.

ddition of L henzin tates the .ui fact that the o 5 y Having210W described my inventlon', wha fi subjectin ii; to a Washing operation, in am Iclaim as'n'ew, anqiidesire to secure by L511}, alkaline ath,- practically free from ater ters Patent, is-- and composed (3f bemin and anhydrous 1 ThQpm ce'ss o'f cl'eaning andrenovating-' ammonia. i I 5 stock materiallandffizhxijg which consists in f In testimony whereof I aflix'my signature 1 5 subjectin it to a washin'gmperafion in a bath iflprsence of two witnesses.

compo'set o f benz inimpfgpgnated with ah- JULES'DOUX. hydgouaammohig y v Witnesses: 2.1." ihej process of cleanigg, and renovating W. H. WESTON,

msto'c kmaterial' and'fabricWhichponsists in C. W. BUSHINGER;