US3649166A - Sterile drycleaning composition and method for sterilizing fabrics - Google Patents
Sterile drycleaning composition and method for sterilizing fabrics Download PDFInfo
- Publication number
- US3649166A US3649166A US888885A US3649166DA US3649166A US 3649166 A US3649166 A US 3649166A US 888885 A US888885 A US 888885A US 3649166D A US3649166D A US 3649166DA US 3649166 A US3649166 A US 3649166A
- Authority
- US
- United States
- Prior art keywords
- fluid
- drycleaning
- fabric
- sterile
- fabrics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 30
- 238000005108 dry cleaning Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 title description 5
- 239000012530 fluid Substances 0.000 claims abstract description 36
- UUIVKBHZENILKB-UHFFFAOYSA-N 2,2-dibromo-2-cyanoacetamide Chemical compound NC(=O)C(Br)(Br)C#N UUIVKBHZENILKB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 7
- 244000005700 microbiome Species 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 2
- 125000001246 bromo group Chemical group Br* 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- SLGOCMATMKJJCE-UHFFFAOYSA-N 1,1,1,2-tetrachloro-2,2-difluoroethane Chemical compound FC(F)(Cl)C(Cl)(Cl)Cl SLGOCMATMKJJCE-UHFFFAOYSA-N 0.000 description 1
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 description 1
- ZXUJWPHOPHHZLR-UHFFFAOYSA-N 1,1,1-trichloro-2-fluoroethane Chemical compound FCC(Cl)(Cl)Cl ZXUJWPHOPHHZLR-UHFFFAOYSA-N 0.000 description 1
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- JLGADZLAECENGR-UHFFFAOYSA-N 1,1-dibromo-1,2,2,2-tetrafluoroethane Chemical compound FC(F)(F)C(F)(Br)Br JLGADZLAECENGR-UHFFFAOYSA-N 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- -1 alkyl phenols Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-N ethanesulfonic acid Chemical class CCS(O)(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006916 nutrient agar Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Definitions
- ABSTRACT A method for sterilizing drycleaning fluids and fabrics cleaned therein which consists of incorporating into the drycleaning fluid from 0.005 to about 1.0 percent by weight (50 to 10,000 ppm.) of 2,2-dibromo-2-cyanoacetamide.
- a drycleaning fluid such as an aliphatic or aromatic hydrocarbon or a chlorinated hydrocarbon can be sterilized and maintained sterile to most micro-organisms, e.g., Staph. aureus, Pseudo. aeruginosa, by incorporating into the cleaning fluid from 0.005 to about 1.0 percent by weight of 2,2'dibromo-2- cyanoacetamide.
- a drycleaning fluid so sterilized will also sterilize fabrics which are contacted with the fluid as in a conventional drycleaning operation.
- Drycleaning fluids employed by the industry today include detergents, the anionics and nonionics, such as the ethylsulfonates, the phosphate esters, the polyalkoxy alkanol sulfates and sulfonates, the polyalkoxy alkanols, the polyalkoxy alkyl phenols and the like.
- the cleaning fluids may contain soil release compounds, hand agents, softeners, and the like.
- the amount of the 2,2-dibromo-2-cyanoacentamide necessary to sterilize the cleaning fluid is relatively small, in the range of from 0.005 to about 0.05 percent by weight.
- the agent may be added periodically to bring the level of agent in the fluid to an amount within the range 0.005 to 1.0 weight percent or may be added before each cycle or during each cycle in an amount to insure the cleaning fluid has a predetermined amount of the agent in contact with the agent and fabric curing that cycle.
- Tw o-inch-square cloth swatches of various fabrics were the fluid only.
- the cloth swatches were dried at 3 7 C. for 20-30 minutes. These swatches were then cleaned in a commercially available drycleaning fluid which contained detergents.
- the cleaning was conducted under a condition in which the solvent contained 70 percent of its water of saturation, a condition known as 70 percent solvent relative humidity (SRH).
- the swatches, after exposure to the cleaning fluids, were dried on sterile Petri dishes, then placed in 10 ml. of sterile physiological saline solutions and bacterial counts made on the micro-organisms recovered from the cloth. A bacterial count was also made on the cleaning solution.
- the results of these experiments are set forth in the table.
- the drycleaning fluid was sterile as indicated by plating ca. 0.2 ml. onto a nutrient agar plate at 37 C., letting the fluid evaporate and checking for subsequent growth two days later.
- a method for sterilizing drycleaning compositions and drycleanable fabrics cleaned therein without retaining the sterilizing agent on said fabric which consists essentially of maintaining in said drycleaning composition from 50 to 10,000 p.p.m. of 2,2-dibromo-2-cyanoacetarnide.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
A method for sterilizing drycleaning fluids and fabrics cleaned therein which consists of incorporating into the drycleaning fluid from 0.005 to about 1.0 percent by weight (50 to 10,000 p.p.m.) of 2,2-dibromo-2-cyanoacetamide.
Description
United States Patent Wolf et al.
[54] STERILE DRYCLEANING COMPOSITION AND METHOD FOR STERILIZING FABRICS [72] Inventors: Paul A. Wolf; Francis J. Bobalek, both of 211 Appl. No.: 888,885
[52] U.S.Cl ..8/l42,252/106, 252/171, 424/304 [51] Int. Cl. ..D06l1/04 [58] Field of Search ..252/106, 171, 107,424/304; 8/142 [56] References Cited UNITED STATES PATENTS 3,030,172 7/1959 Edwards ..8/142 5] Mar. 14, 1972 England..:. England ..8/ 142 Primary Examiner-Herbert B. Guynn Assistant Examiner-Harris A. Pitlick AttorneyGriswo1d & Burdick, Glwynn R. Baker and C. E. Rehberg [57] ABSTRACT A method for sterilizing drycleaning fluids and fabrics cleaned therein which consists of incorporating into the drycleaning fluid from 0.005 to about 1.0 percent by weight (50 to 10,000 ppm.) of 2,2-dibromo-2-cyanoacetamide.
3 Claims, No Drawings STERILE DRYCLEANING COMPOSITION AND METHOD FOR STERILIZING FABRICS BRIEF DESCRIPTION OF INVENTION In accordance with the present invention, a drycleaning fluid such as an aliphatic or aromatic hydrocarbon or a chlorinated hydrocarbon can be sterilized and maintained sterile to most micro-organisms, e.g., Staph. aureus, Pseudo. aeruginosa, by incorporating into the cleaning fluid from 0.005 to about 1.0 percent by weight of 2,2'dibromo-2- cyanoacetamide. A drycleaning fluid so sterilized will also sterilize fabrics which are contacted with the fluid as in a conventional drycleaning operation.
trichloroethane, l ,l ,2-trichloroethane, dibromotetrafluoroethane, tetrachlorodifluoroethane, trichlorofluoromethane, trichlorofluoroethane,
trichlorotrifluoroethane. The bromo analogs of the chloro and fluoro compounds are not widely available and are very costly to employ as drycleaning agents. However, like the chloro and fluoro analogs, the bromo compounds will be sterilized by the method of the present invention.
Drycleaning fluids employed by the industry today include detergents, the anionics and nonionics, such as the ethylsulfonates, the phosphate esters, the polyalkoxy alkanol sulfates and sulfonates, the polyalkoxy alkanols, the polyalkoxy alkyl phenols and the like. In addition, the cleaning fluids may contain soil release compounds, hand agents, softeners, and the like.
The amount of the 2,2-dibromo-2-cyanoacentamide necessary to sterilize the cleaning fluid is relatively small, in the range of from 0.005 to about 0.05 percent by weight. When employed to maintain a sterile condition during repeated usage of the cleaning fluid as in drycleaning, it has been found advantageous to maintain from about 0.01 to about 0.5 weight percent (100 to 5,000 p.p.m.) of the agent in the cleaning fluid at the start of each cleaning cycle for the fluid. The agent may be added periodically to bring the level of agent in the fluid to an amount within the range 0.005 to 1.0 weight percent or may be added before each cycle or during each cycle in an amount to insure the cleaning fluid has a predetermined amount of the agent in contact with the agent and fabric curing that cycle. Larger amounts may be employed but are not necessary since the above-recited amounts are eflective for the purposes intended. When fabrics are cleaned in the conventional manner in a drycleaning solvent which contains the 2,2-dibromo-2-cyanoacetamide, the fabric is found to be sterile as evidenced by having no bacteria recoverable therefrom. However, the compound is not normally carried out with the fabric since little or no residual sterilizing effect is obtained by the fabric after cleaning. The principal advantage of the present invention is to prevent cross-contamination of micro-organisms during cleaning and to produce a sterile;
fabric which must again contact micro-organisms before it becomes a habitat.
DETAILED DESCRIPTION OF THE INVENTION The following examples illustrate the present invention but are not to be construed as limiting.
Tw o-inch-square cloth swatches of various fabrics were the fluid only. The cloth swatches were dried at 3 7 C. for 20-30 minutes. These swatches were then cleaned in a commercially available drycleaning fluid which contained detergents. The cleaning was conducted under a condition in which the solvent contained 70 percent of its water of saturation, a condition known as 70 percent solvent relative humidity (SRH). The swatches, after exposure to the cleaning fluids, were dried on sterile Petri dishes, then placed in 10 ml. of sterile physiological saline solutions and bacterial counts made on the micro-organisms recovered from the cloth. A bacterial count was also made on the cleaning solution. The results of these experiments are set forth in the table.
The drycleaning fluid was sterile as indicated by plating ca. 0.2 ml. onto a nutrient agar plate at 37 C., letting the fluid evaporate and checking for subsequent growth two days later.
[All tests conducted in commercial grade of perchloroethylene dry cleaning solvent containing detergent] Bacteria countin fluid after 1 Commercial grade of bacteriostat sold by Bayer, A.G. under trade name Movin DC.
2 Commercial bacteriostat sold by Geigy Chemical, A.G. under trade name C.H. 3565.
inn.=1nnumerable bacteria, too many to count.
we claim:
l. A method for sterilizing drycleaning compositions and drycleanable fabrics cleaned therein without retaining the sterilizing agent on said fabric which consists essentially of maintaining in said drycleaning composition from 50 to 10,000 p.p.m. of 2,2-dibromo-2-cyanoacetarnide.
2. The method of claim I wherein said 2,2-dibromo-2- cyanoacetamide is present in from between and 5,000 p.p.m.
3. In a method for drycleaning fabrics wherein the fabric is contacted with a drycleaning fluid, the fluid removed from the fabric and the fluid reused to dryclean a different fabric, the improvement which consists essentially of sterilizing the drycleaning fluid and fabric cleaned therein by maintaining in intimate admixture with said fluid from 100 to 5,000 p.p.m. 2,2-dibromo-2-cyanoacetamide, whereby the fabric on being removed from the cleaning fluid after extraction of the fluid is substantially free of said 2,2-dibromo-2-cyanoacetamide.
Claims (2)
- 2. The method of claim 1 wherein said 2,2-dibromo-2-cyanoacetamide is present in from between 100 and 5,000 p.p.m.
- 3. In a method for drycleaning fabrics wherein the fabric is contacted with a drycleaning fluid, the fluid removed from the fabric and the fluid reused to dryclean a different fabric, the improvement which consists essentially of sterilizing the drycleaning fluid and fabric cleaned therein by maintaining in intimate admixture with said fluid from 100 to 5,000 p.p.m. 2,2-dibromo-2-cyanoacetamide, whereby the fabric on being removed from the cleaning fluid after extraction of the fluid is substantially free of said 2,2-dibromo-2-cyanoacetamide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88888569A | 1969-12-29 | 1969-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3649166A true US3649166A (en) | 1972-03-14 |
Family
ID=25394102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US888885A Expired - Lifetime US3649166A (en) | 1969-12-29 | 1969-12-29 | Sterile drycleaning composition and method for sterilizing fabrics |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3649166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328171A (en) * | 1979-11-26 | 1982-05-04 | The Dow Chemical Company | Preparation of cyanoacetamide and 2,2-dibromo-3-nitrilopropionamide compositions |
| US20050204478A1 (en) * | 2004-03-16 | 2005-09-22 | Middleton Richard G | Method for cleaning textile absorbers |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB848483A (en) * | 1957-10-18 | 1960-09-21 | Printar Ind Ltd | Improvements in dry cleaning processes |
| US3030172A (en) * | 1959-07-27 | 1962-04-17 | Le Roy B Edwards | Dry cleaning process and composition |
| US3042479A (en) * | 1960-11-29 | 1962-07-03 | Du Pont | Chlorofluorohydrocarbons in dry cleaning compositions and process |
| GB908643A (en) * | 1960-05-30 | 1962-10-24 | Advance Laundries Ltd | Improvements in or relating to the dry cleaning of fabrics |
| US3163493A (en) * | 1960-12-23 | 1964-12-29 | Stockhausen & Cie Chem Fab | Process for disinfecting dry cleaning in conventional solvents |
| GB994991A (en) * | 1961-03-07 | 1965-06-10 | Pechiney Prod Chimiques Sa | Dry cleaning solutions |
| US3351560A (en) * | 1965-04-09 | 1967-11-07 | Dow Chemical Co | Solvent composition |
| US3357922A (en) * | 1964-08-18 | 1967-12-12 | Bohme Fettchemie Gmbh | Novel disinfectant and dry cleaning compositions |
| US3493658A (en) * | 1965-01-02 | 1970-02-03 | Bayer Ag | Antimicrobial agents |
-
1969
- 1969-12-29 US US888885A patent/US3649166A/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB848483A (en) * | 1957-10-18 | 1960-09-21 | Printar Ind Ltd | Improvements in dry cleaning processes |
| US3030172A (en) * | 1959-07-27 | 1962-04-17 | Le Roy B Edwards | Dry cleaning process and composition |
| GB908643A (en) * | 1960-05-30 | 1962-10-24 | Advance Laundries Ltd | Improvements in or relating to the dry cleaning of fabrics |
| US3042479A (en) * | 1960-11-29 | 1962-07-03 | Du Pont | Chlorofluorohydrocarbons in dry cleaning compositions and process |
| US3163493A (en) * | 1960-12-23 | 1964-12-29 | Stockhausen & Cie Chem Fab | Process for disinfecting dry cleaning in conventional solvents |
| GB994991A (en) * | 1961-03-07 | 1965-06-10 | Pechiney Prod Chimiques Sa | Dry cleaning solutions |
| US3357922A (en) * | 1964-08-18 | 1967-12-12 | Bohme Fettchemie Gmbh | Novel disinfectant and dry cleaning compositions |
| US3493658A (en) * | 1965-01-02 | 1970-02-03 | Bayer Ag | Antimicrobial agents |
| US3351560A (en) * | 1965-04-09 | 1967-11-07 | Dow Chemical Co | Solvent composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328171A (en) * | 1979-11-26 | 1982-05-04 | The Dow Chemical Company | Preparation of cyanoacetamide and 2,2-dibromo-3-nitrilopropionamide compositions |
| US20050204478A1 (en) * | 2004-03-16 | 2005-09-22 | Middleton Richard G | Method for cleaning textile absorbers |
| US20070028396A1 (en) * | 2004-03-16 | 2007-02-08 | Middleton Richard G | Cleaning fluid and methods |
| US8100987B2 (en) | 2004-03-16 | 2012-01-24 | Jane D. Middleton | Cleaning fluid and methods |
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