US3701627A - Process for the chemical cleaning of textiles - Google Patents

Process for the chemical cleaning of textiles Download PDF

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US3701627A
US3701627A US110345A US3701627DA US3701627A US 3701627 A US3701627 A US 3701627A US 110345 A US110345 A US 110345A US 3701627D A US3701627D A US 3701627DA US 3701627 A US3701627 A US 3701627A
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cleaning
textiles
volume
water
carbon atoms
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Werner Grunewalder
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Henkel AG and Co KGaA
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
    • D06L1/04—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents combined with specific additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/52—Amides or imides

Definitions

  • a process for the chemical cleaning of textiles which comprises treating soiled textiles with a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoalkyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
  • a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoalkyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
  • An object of the invention is to free heavily soiled textiles from water-soluble and solvent-soluble dirt satisfactorily and with avoidance of waste water problems.
  • Anoher object of the invention is the development of a process for the chemical cleaning of textiles which comprises treating soiled textile with a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoalkyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
  • a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoalkyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned
  • the clear Water-containing solvent mixture utilized in the invention consists essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms selected from the group consisting of chlorinated hydrocarbons, fluorinated hydrocarbons and chlorofluorinated hydrocarbons, (B) from 55% to 70% by volume of a monohydric alcohol selected from the group consisting of alkanols having 2 to 4 carbon atoms and ethylene glycol monoalkyl ethers having from 3 to 5 carbon atoms, (C) from 5% to 12% by volume of water and (D) from 3 to 10 g./liter of surfaceactive cleaning intensifiers.
  • A from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms selected from the group consisting of chlorinated hydrocarbons, fluorinated hydrocarbons and chlorofluorinated hydrocarbons
  • B from 55% to 70% by volume of a monohydric alcohol selected from the group consisting of alkanol
  • the chlorinated hydrocarbons used as component (A) in the solvent combination are those customary in chemical cleaning, as for example, perchlorethylene, trichlorethane, trichloroethylene or carbon tetrachloride, and also fluorinated chloro-hydrocarbons, as for example, trifiuorotrichloroethane, monofiuorotrichloromethane and so on.
  • the fraction of halogenated hydrocarbons or mixtures thereof in the cleaning bath preferably amounts to about 25% to 30% by volume.
  • Lower, primary or secondary aliphatic monohydric alkanols with 2 to 4 carbon atoms such as ethanol, propanol, isopropanol, primary or secondary butyl alcohols, as well as ethylene glycol monoethers with 3 to 5 carbon atoms, such as ethylene glycol methyl ether,'ethylene glycol ethyl ether or ethylene glycol propyl ether, may be used as component (B).
  • the fraction of these alcohols or glycol ethers or mixtures thereof in the solvent combination preferably amoumnts to about to by volume.
  • the chlorinated hydrocarbons and the alcohols are admixed and to this mixture, as component (C), is added the desired quantity of water, preferably about 10% by volume.
  • component (C) is added the desired quantity of water, preferably about 10% by volume.
  • the solvent combination gives an optically clear liquid which has no tendency to cloudiness or separation into phases.
  • surface-active cleaning intensifiers may suitable be used, such as such as higher alkyl sulfonates or alkylaryl sulfonates, such as higher alkylphenyl sulfonates, higher fatty alcohol sulfates, adducts of ethylene oxide or propylene oxide to higher fatty alcohols or higher alkylphenols and the like.
  • the amount of cleaning intensifiers in the mixture is about 3 to 10 g./liter.
  • the cleaning process can be carried out in the usual chemical dry cleaning machines after removal of or on bypassing of the water separator.
  • the dirty liquor is only cleaned by distillation. Filtration is not needed.
  • rinsing with clean solvent mixture or with a pure halogenated hydrocarbon to which may be added the usual additives according to the kind of textiles cleaned and the result desired for the goods, such as brighteners, finishing auxiliaries, antistatic agents, water-repellent treatment substances and the like, is suitable carried out.
  • optical brighteners can be used in the rinsing bath with particular advantage.
  • the rinsing liquor if it is the solvent mixture of the invention, usually serves as a first washing liquor for the next cleaning charge.
  • the solvent combinations of the invention have an excellent cleaning action even in the case of the heaviest contaminations. It is, however, to be noted that the solvent mixture of the invention is not suitable for cleaning textiles sensitive to moisture, since owing to its relatively high water content, it may cause damage such as shrinking.
  • EXAMPLE 1 9 kg. of working clothes soiled with lacquer were cleaned in a closed and explosion-proof airtight cleaning machine in a solvent mixture which consisted of 20 liters of trichloroethylene, 70 liters of ethylene glycol ethyl ether and 10 liters of water. After a cleaning time of 15 minutes, after pumping olf the liquor into the distillation apparatus, the clothes were centrifuged and dried in the usual way. The cleaning effect on the working clothes so treated was excellent and distinctly better than in the case of clothes wet washed or cleaned by a normal chemical dry cleaning process used for comparison.
  • EXAMPLE 2 5 kg. of oiland fat-contaminated white overalls of a cotton-polyester mixed fabric were cleaned in the cleaning plant mentioned in Example 1, with a solvent which consisted of 25 liters of perchloroethylene, 70 liters of ethanol and 5 liters of water. After a cleaning time of 15 minutes with the addition of 3 g. per liter of a product of addition of 9 mols of ethylene oxide to nonylphenol, the cleaned goods were centrifuged. The dirty solvent recovered was distilled. The cleaned goods were then treated for 5 minutes with 80 liters of clean solvent of the same composition with addition of 0.2 g. per liter of bath liquor of an optical brightener [Uvitex (registered trademark) ERN conc.]. This liquor was pumped back into the tank and used as prewashing liquor for the next charge.
  • the overalls were measured at 10 difierent places with a photoelectric device for measuring the degree of whiteness (Elrepho device of Zeiss), and these measurements were repeated at the marked places after the cleaning or washing.
  • a portion of fabric was, at the same time, measured in the clean state. The following average values were obtained.
  • Reflectometer measure- Cleaning ment percent brightening After the process of the invention 66 After the domestic wash 62 After the usual chemical cleaning 58 The comparative values show that, according to the invention, better cleaning results can be obtained than by a usual chemical dry cleaning or boiling wash.
  • EXAMPLE 3 In the cleaning plant mentioned in Example 1, 7 kg. of cleaning clothes from a printing shop were cleaned in a bath which consisted of 30 liters of perchlorethylene, 60 liters of isopropanol and 10 liters of water. The dirty liquor was distilled after centrifuging, and the solvent mixture distilled over completely in a temperature range from 77 to 81 C.
  • EXAMPLE 4- In the cleaning plant mentioned in Example 1, 6 kg. of mechanics clothing of material made of polyamide fiber were cleaned in a bath which consisted of 35 liters of trifiuorotrichloroethane, 60 liters of ethylene glycol methyl ether and 5 liters of water, for 20 minutes at a temperature of 20 C. Then, after centrifuging, the cleaning liquor was distilled off and the goods being cleaned were rinsed for 5 minutes.
  • the rinsing liquor consisted of the same combination of solvents, but it also contained 2 g. per liter of a phosphated fatty alcohol-ethylene oxide adduct as an antistatic agent. At the end of the rinsing operation, the liquor was pumped back into the tank and the cleaned charge was centrifuged and dried in the usual way.
  • Example 1 In the cleaning plant mentioned in Example 1, 6 kg. of nylon protective clothing were cleaned in a bath which consisted of 40' liters of carbon tetrachloride, 55 liters of ethylene glycol ethyl ether and 5 liters of water, with addition of 10 g. per liter of lauric acid diethanolamide for 20 minutes. After centrifuging, the liquor was distilled off and the cleaned goods were finished with a further solvent bath of the same composition also containing 3 g. per liter of a ketone-allehyde resin condensate for 5 minutes. Then, the liquor was pumped back into the tank and the textiles were centrifuged in the usual way and dried With warm air.
  • the protective clothing treated was clean and had a uniform and good finish.
  • a process for the chemical cleaning of textiles which comprises treating soiled textiles with a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms selected from the group consisting of chlorinated hydrocarbons, fluorinated hydrocarbons and chlorofluorinated hydrocarbons, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoal kyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
  • a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms selected from the group consisting of chlorinated hydrocarbons, fluorinated hydrocarbons and chlorofluorinated hydrocarbons, (B) from 55% to 70% by volume of a monohydric
  • said solvent mixture contains 3 to 10 gm. per liter of surface-active cleaning intensifier selected from the group consisting of higher alkyl sulfonates, higher alkylphenyl sulfonates, higher References Cited fatty alcohol sulfates and adducts of ethylene oxide and UNITED STATES PATENTS t I k gflcfigllzne oxide to hlgher fatty alcohols and higher a1 yl 3,163,493 12/1964 Hess v u 8 142 3.
  • said cleaned textiles v I are rinsed with said clear water-containing organic solvent 5 MAYER WEINBLATT Pnmary Exammer mixture.

Abstract

A PROCESS FOR THE CHEMICAL CLEANING OF TEXTILES WHICH COMPRISES TREATING SOILED TEXTILES WITH A CLEAR WATER-CONTAINING ORGANIC SOLVENT MIXTURE CONSISTING ESSENTIALLY OF (A) FROM 20% TO 40% BY VOLUME OF A HALOGENATED HYDROCARBON HAVING FROM 1 TO 2 CARBON ATOMS, (B) FROM 55% TO 70% BY VOLUME OF A MONOHYDRIC ALCOHOL HAVING FROM 2 TO 5 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ALKANOLS AND ETHYLENE GLYCOL MONOALKYL ESTERS, AND (C) FROM 5% TO 12% BY VOLUME OF EATER AND RECOVERING CLEANED TEXTILES.

Description

1 United States Patent Ofifice 3,701,627 Patented Oct. 31, 1972 3,701,627 PROCESS FOR THE CHEMICAL CLEANING OF TEXTILES Werner Grunewalder, Dusseldorf-Holthausen, Germany,
assignor to Henkel & Cie G.m.b.H., Holthausen, Germany No Drawing. Filed Jan. 27, 1971, Ser. No. 110,345 Claims priority, application Germany, Jan. 30, 1970,
Int. Cl. D061 N US. Cl. 8142 4 Claims ABSTRACT OF THE DISCLOSURE A process for the chemical cleaning of textiles which comprises treating soiled textiles with a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoalkyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
THE PRIOR ART The wet washing of very dirty textiles by means of solvent-containing washing compositions in an aqueous bath is known. The content of organic solvents enables obstinate fatty contamination also to be removed relatively Well from the textile material. Extremely heavily soiled textile clothing, however, such as for example, mechanics working clothes, mops or cleaning rags, working clothes from varnish or lacquer works and so on, cause difficulties. With these articles the cleaning results are not satisfactory, since such heavy and obstinate soiling is frequently not completely removed. Moreover, in the case of such washing processes an extremely heavyily contaminated waste water is obtained, which cannot be passed into the main sewer without expensive clarification.
On the other hand, a customary chemical dry cleaning with halogenated hydrocarbons or petroelum hydrocarbons with use of cleaning intensifiers and relatively small additions of water, which are generally of the order of up to 1% by volume, does make possible a good removal of the fat-containing dirt. The removal of watersoluble dirt particles, however, is frequently insuflicient owing to the relatively small amounts of Water, when very heavily contamimnated pieces of clothing are present.
OBJECTS OF THE INVENTION An object of the invention is to free heavily soiled textiles from water-soluble and solvent-soluble dirt satisfactorily and with avoidance of waste water problems.
Anoher object of the invention is the development of a process for the chemical cleaning of textiles which comprises treating soiled textile with a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoalkyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
These and other objects of the invention will become more apparent as the description thereof proceeds.
DESCRIPTION OF THE INVENTION According to the invention, these objects are achieved by a process for the chemical cleaning of textiles with a water-containing mixture of organic solvents, in which a clear solvent mixture comprising (A) 20% to 40% by volume of a halogenated hydrocarbon having 1 or 2 carbon atoms, (B) to 70% by volume of an aliphatic alcohol or a glycol monoether having 2 to 5 carbon atoms and (C) 5% to 12% by volume of water, is used. In order to intensify the cleaning action, the usual surface-active cleaning intensifiers may be co-employed, if desired.
Preferably, the clear Water-containing solvent mixture utilized in the invention consists essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms selected from the group consisting of chlorinated hydrocarbons, fluorinated hydrocarbons and chlorofluorinated hydrocarbons, (B) from 55% to 70% by volume of a monohydric alcohol selected from the group consisting of alkanols having 2 to 4 carbon atoms and ethylene glycol monoalkyl ethers having from 3 to 5 carbon atoms, (C) from 5% to 12% by volume of water and (D) from 3 to 10 g./liter of surfaceactive cleaning intensifiers.
The chlorinated hydrocarbons used as component (A) in the solvent combination are those customary in chemical cleaning, as for example, perchlorethylene, trichlorethane, trichloroethylene or carbon tetrachloride, and also fluorinated chloro-hydrocarbons, as for example, trifiuorotrichloroethane, monofiuorotrichloromethane and so on. The fraction of halogenated hydrocarbons or mixtures thereof in the cleaning bath preferably amounts to about 25% to 30% by volume.
Lower, primary or secondary aliphatic monohydric alkanols with 2 to 4 carbon atoms, such as ethanol, propanol, isopropanol, primary or secondary butyl alcohols, as well as ethylene glycol monoethers with 3 to 5 carbon atoms, such as ethylene glycol methyl ether,'ethylene glycol ethyl ether or ethylene glycol propyl ether, may be used as component (B). The fraction of these alcohols or glycol ethers or mixtures thereof in the solvent combination preferably amoumnts to about to by volume.
The chlorinated hydrocarbons and the alcohols are admixed and to this mixture, as component (C), is added the desired quantity of water, preferably about 10% by volume. The solvent combination gives an optically clear liquid which has no tendency to cloudiness or separation into phases. For the improvement of its cleaning action, surface-active cleaning intensifiers may suitable be used, such as such as higher alkyl sulfonates or alkylaryl sulfonates, such as higher alkylphenyl sulfonates, higher fatty alcohol sulfates, adducts of ethylene oxide or propylene oxide to higher fatty alcohols or higher alkylphenols and the like. Usually, the amount of cleaning intensifiers in the mixture is about 3 to 10 g./liter.
Since the solvent combination may be distilled off from contaminated cleaning baths without difficulty, the cleaning process can be carried out in the usual chemical dry cleaning machines after removal of or on bypassing of the water separator. The dirty liquor is only cleaned by distillation. Filtration is not needed. Following on the actual cleaning process, rinsing with clean solvent mixture or with a pure halogenated hydrocarbon, to which may be added the usual additives according to the kind of textiles cleaned and the result desired for the goods, such as brighteners, finishing auxiliaries, antistatic agents, water-repellent treatment substances and the like, is suitable carried out. In the cleaning of white textiles, optical brighteners can be used in the rinsing bath with particular advantage. The rinsing liquor, if it is the solvent mixture of the invention, usually serves as a first washing liquor for the next cleaning charge.
The solvent combinations of the invention have an excellent cleaning action even in the case of the heaviest contaminations. It is, however, to be noted that the solvent mixture of the invention is not suitable for cleaning textiles sensitive to moisture, since owing to its relatively high water content, it may cause damage such as shrinking.
The following examples are illustrative of the practice of the invention without being deemed limitative in any respect.
EXAMPLE 1 9 kg. of working clothes soiled with lacquer were cleaned in a closed and explosion-proof airtight cleaning machine in a solvent mixture which consisted of 20 liters of trichloroethylene, 70 liters of ethylene glycol ethyl ether and 10 liters of water. After a cleaning time of 15 minutes, after pumping olf the liquor into the distillation apparatus, the clothes were centrifuged and dried in the usual way. The cleaning effect on the working clothes so treated was excellent and distinctly better than in the case of clothes wet washed or cleaned by a normal chemical dry cleaning process used for comparison.
EXAMPLE 2 5 kg. of oiland fat-contaminated white overalls of a cotton-polyester mixed fabric were cleaned in the cleaning plant mentioned in Example 1, with a solvent which consisted of 25 liters of perchloroethylene, 70 liters of ethanol and 5 liters of water. After a cleaning time of 15 minutes with the addition of 3 g. per liter of a product of addition of 9 mols of ethylene oxide to nonylphenol, the cleaned goods were centrifuged. The dirty solvent recovered was distilled. The cleaned goods were then treated for 5 minutes with 80 liters of clean solvent of the same composition with addition of 0.2 g. per liter of bath liquor of an optical brightener [Uvitex (registered trademark) ERN conc.]. This liquor was pumped back into the tank and used as prewashing liquor for the next charge.
In order to make a comparison possible, 5 kg. of the dirty overalls were washed in a domestic washing machine at the boiling temperature with addition of a commercial full washing composition. A further experiment was carried out in a normal chemical dry cleaning plant with addition of a solution, consisting of 0.2 g. of the above-mentioned optical brightener, 2 cc. of water and 5 g. of an adduct of 5 mols of ethylene oxide to nonylphenol per liter of perchlorethylene, for 15 minutes at 20 C. with constant filtration of the liquor.
To determine the brightening, the overalls were measured at 10 difierent places with a photoelectric device for measuring the degree of whiteness (Elrepho device of Zeiss), and these measurements were repeated at the marked places after the cleaning or washing. To obtain the percentage brightening, a portion of fabric was, at the same time, measured in the clean state. The following average values were obtained.
Reflectometer measure- Cleaning: ment percent brightening After the process of the invention 66 After the domestic wash 62 After the usual chemical cleaning 58 The comparative values show that, according to the invention, better cleaning results can be obtained than by a usual chemical dry cleaning or boiling wash.
EXAMPLE 3 In the cleaning plant mentioned in Example 1, 7 kg. of cleaning clothes from a printing shop were cleaned in a bath which consisted of 30 liters of perchlorethylene, 60 liters of isopropanol and 10 liters of water. The dirty liquor was distilled after centrifuging, and the solvent mixture distilled over completely in a temperature range from 77 to 81 C.
The cleaned clothes, after centrifuging, were rinsed for 5 minutes with clean solvent mixture, and, after centrifuging again, were dried with warm air as usual. A satisfactory cleaning elfect was obtained.
A further experiment was carried out in the same way, but with the difference that 2 g. per liter of sodium dodecylbenzenesulfonate and 1 g. per liter of the adduct of 5 mols of ethylene oxide to nonylphenol were added to the cleaning bath liquor. A further clearly visible improvement of the cleaning effect was attained.
EXAMPLE 4- In the cleaning plant mentioned in Example 1, 6 kg. of mechanics clothing of material made of polyamide fiber were cleaned in a bath which consisted of 35 liters of trifiuorotrichloroethane, 60 liters of ethylene glycol methyl ether and 5 liters of water, for 20 minutes at a temperature of 20 C. Then, after centrifuging, the cleaning liquor was distilled off and the goods being cleaned were rinsed for 5 minutes. The rinsing liquor consisted of the same combination of solvents, but it also contained 2 g. per liter of a phosphated fatty alcohol-ethylene oxide adduct as an antistatic agent. At the end of the rinsing operation, the liquor was pumped back into the tank and the cleaned charge was centrifuged and dried in the usual way.
The clothes so treated were satisfactory as regards the cleaning elfect and the antistatic action.
In the cleaning plant mentioned in Example 1, 6 kg. of nylon protective clothing were cleaned in a bath which consisted of 40' liters of carbon tetrachloride, 55 liters of ethylene glycol ethyl ether and 5 liters of water, with addition of 10 g. per liter of lauric acid diethanolamide for 20 minutes. After centrifuging, the liquor was distilled off and the cleaned goods were finished with a further solvent bath of the same composition also containing 3 g. per liter of a ketone-allehyde resin condensate for 5 minutes. Then, the liquor was pumped back into the tank and the textiles were centrifuged in the usual way and dried With warm air.
The protective clothing treated was clean and had a uniform and good finish.
The preceding specific embodiments are illustrative of the practice of the invention. It is to be understood, however, that other expedients known to those skilled in the art may be employed without departing from the spirit of the invention or the scope of the appended claims.
I claim:
1. A process for the chemical cleaning of textiles which comprises treating soiled textiles with a clear water-containing organic solvent mixture consisting essentially of (A) from 20% to 40% by volume of a halogenated hydrocarbon having from 1 to 2 carbon atoms selected from the group consisting of chlorinated hydrocarbons, fluorinated hydrocarbons and chlorofluorinated hydrocarbons, (B) from 55% to 70% by volume of a monohydric alcohol having from 2 to 5 carbon atoms selected from the group consisting of alkanols and ethylene glycol monoal kyl ethers, and (C) from 5% to 12% by volume of water and recovering cleaned textiles.
2. The process of claim 1 wherein said solvent mixture contains 3 to 10 gm. per liter of surface-active cleaning intensifier selected from the group consisting of higher alkyl sulfonates, higher alkylphenyl sulfonates, higher References Cited fatty alcohol sulfates and adducts of ethylene oxide and UNITED STATES PATENTS t I k gflcfigllzne oxide to hlgher fatty alcohols and higher a1 yl 3,163,493 12/1964 Hess v u 8 142 3. The process of claim 1 wherein said cleaned textiles v I are rinsed with said clear water-containing organic solvent 5 MAYER WEINBLATT Pnmary Exammer mixture.
4. The process of claim 1 wherein said water-containing organic solvent mixture is recovered after treating said 3137, 139, 171 soiled textiles and thereafter distilled, 10
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Cited By (16)

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US3951596A (en) * 1972-10-13 1976-04-20 Colgate-Palmolive Company Soap curd dispersant
US4076500A (en) * 1976-06-18 1978-02-28 Ici Americas Inc. Treatment of textile materials
US4106901A (en) * 1976-08-31 1978-08-15 Star Chemical, Inc. Emulsifier-solvent scour composition and method of treating textiles therewith
US4115061A (en) * 1976-02-02 1978-09-19 Henkel Kommanditgesellschaft Auf Aktien Combination method for cleaning greatly soiled textiles
US4155856A (en) * 1977-08-25 1979-05-22 Ciba-Geigy Corporation Process for aftertreating dyed textile material containing polyester fibres
US4189397A (en) * 1976-12-24 1980-02-19 Imperial Chemical Industries Limited Stabilization of 1,1,1-trichloroethane compositions against metal-induced decomposition with a polyalkylene glycol monoalkyl ether
US4199482A (en) * 1977-03-31 1980-04-22 Colgate-Palmolive Company Laundry pre-spotter composition and method of using same
US4378968A (en) * 1980-06-20 1983-04-05 Chloe Chimie Process for preventing the redeposition of soil during dry cleaning, and composition for carrying out this process
EP0479146A2 (en) * 1990-10-02 1992-04-08 Mihama Corporation Use of propylene glycol monomethyl ether for dry cleaning
US5112358A (en) * 1990-01-09 1992-05-12 Paradigm Technology Co., Inc. Method of cleaning heavily soiled textiles
US5634947A (en) * 1990-10-02 1997-06-03 Mihama Corporation Method for cleaning clothes with propylene glycol monomethyl ether
US5728977A (en) * 1996-04-09 1998-03-17 Juday; Thomas W. Apparatus and methods for determining the quantity of and stabilizing a plurality of soiled industrial towels
WO2000063340A1 (en) * 1999-04-16 2000-10-26 The Dow Chemical Company Method and composition for reduced water damage laundry care
US20040173246A1 (en) * 1999-10-15 2004-09-09 Damaso Gene R. Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent
US7097715B1 (en) * 2000-10-11 2006-08-29 R. R. Street Co. Inc. Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent
US20070087955A1 (en) * 1999-10-15 2007-04-19 R. R. Street & Co., Inc. Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent

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DE1112240B (en) * 1956-06-14 1961-08-03 Stockhausen & Cie Chem Fab Dry cleaning method
GB97119A (en) * 1961-11-29
GB1121864A (en) * 1965-11-09 1968-07-31 Ici Ltd Textile treatment
GB1162964A (en) * 1967-09-06 1969-09-04 Ici Ltd Treatment of Textile Materials

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951596A (en) * 1972-10-13 1976-04-20 Colgate-Palmolive Company Soap curd dispersant
US4115061A (en) * 1976-02-02 1978-09-19 Henkel Kommanditgesellschaft Auf Aktien Combination method for cleaning greatly soiled textiles
US4076500A (en) * 1976-06-18 1978-02-28 Ici Americas Inc. Treatment of textile materials
US4106901A (en) * 1976-08-31 1978-08-15 Star Chemical, Inc. Emulsifier-solvent scour composition and method of treating textiles therewith
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Also Published As

Publication number Publication date
FR2077423B1 (en) 1973-12-28
CH553282A (en) 1974-08-30
NL7018870A (en) 1971-08-03
DE2004232B2 (en) 1978-02-09
DE2004232C3 (en) 1978-10-05
FR2077423A1 (en) 1971-10-22
BR7100588D0 (en) 1973-05-03
GB1305001A (en) 1973-01-31
DE2004232A1 (en) 1971-08-05

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