US3676353A - Nonflouride laundry sour containing fumaric acid - Google Patents
Nonflouride laundry sour containing fumaric acid Download PDFInfo
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- US3676353A US3676353A US115885A US3676353DA US3676353A US 3676353 A US3676353 A US 3676353A US 115885 A US115885 A US 115885A US 3676353D A US3676353D A US 3676353DA US 3676353 A US3676353 A US 3676353A
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- Prior art keywords
- percent
- fumaric acid
- laundry
- weight
- laundry sour
- 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
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- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 title claims abstract description 42
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000001530 fumaric acid Substances 0.000 title claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 19
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 11
- 238000004900 laundering Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 25
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 9
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 2
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 229910052742 iron Inorganic materials 0.000 description 10
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 231100000419 toxicity Toxicity 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical compound [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000004673 fluoride salts Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000212384 Bifora Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- 235000015241 bacon Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- -1 e.g. Chemical compound 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- BFXAWOHHDUIALU-UHFFFAOYSA-M sodium;hydron;difluoride Chemical compound F.[F-].[Na+] BFXAWOHHDUIALU-UHFFFAOYSA-M 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 150000003892 tartrate salts Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/10—Salts
- C11D7/16—Phosphates including polyphosphates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/265—Carboxylic acids or salts thereof
Definitions
- 2,086,867 discloses the sequestering of iron, aluminum and copper in neutral or only slightly alkaline solutions by the use of the sodium hexametaphosphate.
- This patent further teaches that in alkaline solutions encountered in laundering operations metaphosphate complexes resulting from the use of sodium hexametaphosphate may be kept in solution by the use of tartrates, oxalates or citrates.
- US. Pat. No. 2,331,396 teaches the use of sodium acid fluoride and up to weight percent of sodium hexametaphosphate as a stabilized laundery sour.
- the foregoing compositions cannot be considered ideal laundry sours, and considerable efforts have been expended over the years to find improved compositions.
- a comprehensive laundry sour composition is obtained by using a composition comprising a major amount of fumaric acid and a minor amount of a glassy sodium phosphate.
- fumaric acid a low molecular weight dicarboxylic acid
- the amount of fumaric acid employed of course will depend upon the alkalinity of the rinse water, but in general, satisfactory results are obtained when the acid is added to the rinse water in amount of about 0.01 to about 0.05 percent by weight.
- the fumaric acid employed in this invention can be any of the regular grades of fumaric acid normally available ranging from the ordinary commercial grade to reagent grade. It is of course well known that fumaric acid is an acceptable food acidulant and hence for laundry purposes, can generally be considered non-toxic. In contrast, maleic acid which is the opposite sterro configuration of fumaric is toxic.
- any of the various grades of sodium phosphate and citric acid may be employed in the compositions of this invention.
- the fully formulated laundry sour of this invention will, therefore, contain from about 60 to about weight percent fumaric acid, from about 10 to about 40 percent glassy sodium phosphate, e.g., sodium hexametaphosphate and up to about 10 percent citric acid.
- composition comprises from about 60 to about 80 percent fumaric acid, from about 10 to about 25 percent sodium hexametaphosphate and about 5 to 10 percent by weight of citric acid.
- the formulated sour is added to the rinse water in an amount of about 0.02 to about 1.0 percent by weight.
- the fumaric acid or formulated laundry sour is added to the rinse water fabric mixture in the customary manner and at the usual time and temperatures as is well known in the laundry art.
- the actual amount added will depend on local conditions such as alkalinity and metal ion concentration.
- the composition can be used in a similar manner for an iron prevention measure. While the conditions of use differ from the foregoing two operations, the invented composition can also be used in the so called reclaim operation of laundries wherein iron and other material stains are removed from fabrics.
- Swatches of iron oxide stain Indian Head muslin (3% inch by 2% inch) were placed in the standard laboratory Launderometer Wash Operation and treated with the indicated laundry sour composition at a concentration of 0.5 percent for 20 minutes. Afterwards, the swatches were removed, hand rinsed under running tap water and dried in an oven at l l0l 20 C. The swatches were then evaluated with a Hunter D-40 Reflectance meter (blue) to determine the amount of change in appearance due to the reclaiming procedure. The procedure was then repeated with swatches which were a blend of 65 percent polyester and 35 percent cotton. Sour A was composed of 70 percent fumaric acid, 20 percent sodium hexametaphosphate, and 10 percent citric acid. Sour B was a commercial laundry sour which is a mixture of ammonium and sodium silicofluorides. The results of the reclaimed procedures are tabulated below in Table I.
- An improved laundry sour composition consisting essentially of about 60 to about 90 percent by weight of fumaric acid, about 10 to about 40 percent by weight of a glassy sodium metaphosphate and from to about by weight of citric acid.
- composition according to claim 1 consisting essentially of about 60 to about percent by weight of fumaric acid, from about 10 to about 25 percent by weight of sodium hexametaphosphate and about 5 to 10 percent by weight of citric acid.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
The laundering of fabrics is improved by the use of fumaric acid as a laundry sour. Very satisfactory results are obtained by the use of a laundry sour containing a predominant amount of fumaric acid and a minor amount of a glassy sodium metaphosphate.
Description
Ciko
[451 July 11,1972
[54] NONFLOURIDE LAUNDRY SOUR CONTAINING FU C ACID [72] Inventor: John D. Clko, Detroit, Mich.
[73] Assignee: Basf Wyandotte Corporation, Wyandotte,
Mich.
221 Filed: Feb. 16,1971
21 Appl.No.: 115,885
[56] References Cited UNITED STATES PATENTS 2/1949 Courtney et a1. ..252/135 9/1947 McCoy ..252/136 6/1947 Bacon ...252/l36 X 7/1945 Robinson ..252/ 142 X 2,331,396 10/1943 Humbaugh et a]... .....252/l36 2,141,589 12/1938 Bishop ....252/l36 1,925,843 9/1933 Mitchell et al. .252/136 X 1,435,541 11/1922 Mabrey ..252/136 OTHER PUBLICATIONS Laundry Sours, by Dr. Foster D. Snell in Soap, Vol. 13, No. 6, June 1937, pages 31- 34.
Industrial Detergency, Edited by Wm. W. Niven, Jr., Reinhold Publishing Co., N.Y., 1955, pages 65 & 66.
Primary Examiner-Leon D. Rosdol Assistant Examiner-Dennis L. Albrecht AttomeyRobert M. Phipps, Robert E. Dunn, Bernhard R. Swick, Joseph D. Michaels and Arnold S. Weintraub 57 ABSTRACT The laundering of fabrics is improved by the use of fumaric acid as a laundry sour. Very satisfactory results are obtained by the use of a laundry sour containing a predominant amount of fuman'c acid and a minor amount of a glassy sodium metaphosphate.
5 Claims, No Drawings NONFLOUE LAUNDRY SOUR CONTAINING FUMARIC ACID BACKGROUND OF THE INVENTION 1 Field of the invention This invention relates to improvements in the art of laundering fabrics, and more particularly relates to improvements in neutralization of the residual alkalinity and prevention of iron stain formations in the laundered fabrics.
2. Description of the Prior Art The ability to remove the stains, particularly iron and rust stains, has long been recognized as a highly desirable characteristic in a laundry sour. Historically oxalic acid and fluoride salts have been regarded as the prime anti-rust agents for sours by virtue of the fact that neophytes have been unable to achieve the same degree of efficacy. Although oxalic acid and the fluorides are quite efficient, their use in all phases of the modern laundry industry has not been encouraged as a result of particular aggression towards cellulosic fibers and a high degree of toxicity. US. Pat. No. 2,086,867 discloses the sequestering of iron, aluminum and copper in neutral or only slightly alkaline solutions by the use of the sodium hexametaphosphate. This patent further teaches that in alkaline solutions encountered in laundering operations metaphosphate complexes resulting from the use of sodium hexametaphosphate may be kept in solution by the use of tartrates, oxalates or citrates. US. Pat. No. 2,331,396 teaches the use of sodium acid fluoride and up to weight percent of sodium hexametaphosphate as a stabilized laundery sour. However, as previously pointed out due to toxicity, solubility limitations and/or cost considerations, the foregoing compositions cannot be considered ideal laundry sours, and considerable efforts have been expended over the years to find improved compositions.
It is, therefore, an object of this invention to provide a more satisfactory laundry sour which is free of objectionable toxicity. It is yet another object of this invention to provide a more comprehensive laundry sour which goes beyond the traditional role of simply neutralizing the excess alkalinity. These and other objects will become readily apparent to one of skill in the art upon reading of the following specification.
SUMMARY OF THE INVENTION In accordance with this invention, there is provided an improvement in the laundering of fabrics comprising the use of fumaric acid as a laundry sour. Furthermore, a comprehensive laundry sour composition is obtained by using a composition comprising a major amount of fumaric acid and a minor amount of a glassy sodium phosphate.
DESCRIPTION OF THE PREFERRED EMBODIMENT It was surprising to find that fumaric acid, a low molecular weight dicarboxylic acid, was an effective laundry sour in view of the prior art which placed heavy emphasis on tri and higher carboxylic acids or hydroxy carboxylic acids. The amount of fumaric acid employed of course will depend upon the alkalinity of the rinse water, but in general, satisfactory results are obtained when the acid is added to the rinse water in amount of about 0.01 to about 0.05 percent by weight. The fumaric acid employed in this invention can be any of the regular grades of fumaric acid normally available ranging from the ordinary commercial grade to reagent grade. It is of course well known that fumaric acid is an acceptable food acidulant and hence for laundry purposes, can generally be considered non-toxic. In contrast, maleic acid which is the opposite sterro configuration of fumaric is toxic.
As indicated in discussing the prior art, it is conventional in laundering operations at the time of souring the washed fabrics is also sequester troublesome metal irons such as iron and copper so as to give the washed fabrics a cleaner brighter look. It is well known that iron contributes a yellow cast which is most pronounced upon white or light colored goods. Therefore, it has been found advantageous to incorporate in with the fumaric acid a small amount of a glassy sodium phosphate having the generalized formula (Na PO )x wherein x has a value from about 3 to 22. Preferably the phosphate is sodium metahexaphosphate wherein x 6. Depending upon the amount of iron concentration in the rinse water, it can also be advantageous to add small amounts of citric acid along with the sodium phosphate so as to prevent the precipitation out of the complexed iron and other metal salts. As is the case with the fumaric acid, any of the various grades of sodium phosphate and citric acid may be employed in the compositions of this invention. The fully formulated laundry sour of this invention will, therefore, contain from about 60 to about weight percent fumaric acid, from about 10 to about 40 percent glassy sodium phosphate, e.g., sodium hexametaphosphate and up to about 10 percent citric acid. Especially desirable overall results are obtained when the composition comprises from about 60 to about 80 percent fumaric acid, from about 10 to about 25 percent sodium hexametaphosphate and about 5 to 10 percent by weight of citric acid. The formulated sour is added to the rinse water in an amount of about 0.02 to about 1.0 percent by weight.
The fumaric acid or formulated laundry sour is added to the rinse water fabric mixture in the customary manner and at the usual time and temperatures as is well known in the laundry art. The actual amount added will depend on local conditions such as alkalinity and metal ion concentration. In addition to using the invented composition in the normal souring operation, it will be readily apparent to those skilled in the laundry art that the composition can be used in a similar manner for an iron prevention measure. While the conditions of use differ from the foregoing two operations, the invented composition can also be used in the so called reclaim operation of laundries wherein iron and other material stains are removed from fabrics.
When used in the reclaim operation, most satisfactory results are obtained with the formulated laundry sour composition of this invention by using elevated water temperatures such as to and treating the fabric with the composition for about 10 to 25 minutes at a solution strength of about 0.1 to about 1.0 percent by weight. The invention is further described in the following example:
Swatches of iron oxide stain Indian Head muslin (3% inch by 2% inch) were placed in the standard laboratory Launderometer Wash Operation and treated with the indicated laundry sour composition at a concentration of 0.5 percent for 20 minutes. Afterwards, the swatches were removed, hand rinsed under running tap water and dried in an oven at l l0l 20 C. The swatches were then evaluated with a Hunter D-40 Reflectance meter (blue) to determine the amount of change in appearance due to the reclaiming procedure. The procedure was then repeated with swatches which were a blend of 65 percent polyester and 35 percent cotton. Sour A was composed of 70 percent fumaric acid, 20 percent sodium hexametaphosphate, and 10 percent citric acid. Sour B was a commercial laundry sour which is a mixture of ammonium and sodium silicofluorides. The results of the reclaimed procedures are tabulated below in Table I.
TABLE I A Change in Hunter Blue Reflectance From inspection of the table, it is readily apparent that the sour composition of this invention is equally effective as the prior art silicofluoride salt sour, and yet the problem of toxicity has been avoided. In a similar manner, the sours of this invention are equally effective in the prevention of iron deposition and redeposition in freshly laundered fabrics in addition to neutralizing the excess alkalinity which results in normal laundering procedures.
The foregoing example and methods have been described in the foregoing specification for the purpose of illustration and not limitation. Many other modifications and ramifications will naturally suggest themselves to those skilled in the art based on this disclosure. These are intended to be comprehended as within the scope of this invention.
What is claimed is:
1. An improved laundry sour composition consisting essentially of about 60 to about 90 percent by weight of fumaric acid, about 10 to about 40 percent by weight of a glassy sodium metaphosphate and from to about by weight of citric acid.
2. A composition according to claim 1 consisting essentially of about 60 to about percent by weight of fumaric acid, from about 10 to about 25 percent by weight of sodium hexametaphosphate and about 5 to 10 percent by weight of citric acid.
3. A rinse water containing from about 0.02 to about 1.0 percent by weight of the laundry sour composition of claim 1.
4. In a fabric laundering process wherein the washed fabrics are rinsed in an aqueous solution of a laundry sour composition, the improvement which comprises incorporating the composition of claim 1 into the aqueous rinse solution as a laundry sour.
5. The process of claim 4 wherein the temperature of the rinse solution is held at to F and the fabric is treated with the rinse solution of the laundry sour for about 10 to 25 minutes, whereby reclaiming of the laundered fabric is achieved.
Claims (4)
- 2. A composition according to claim 1 consisting essentially of about 60 to about 80 percent by weight of fumaric acid, from about 10 to about 25 percent by weight of sodium hexametaphosphate and about 5 to 10 percent by weight of citric acid.
- 3. A rinse water containing from about 0.02 to about 1.0 percent by weight of the laundry sour composition of claim 1.
- 4. In a fabric laundering process wherein the washed fabrics are rinsed in an aqueous solution of a laundry sour composition, the improvement which comprises incorporating the composition of claim 1 into the aqueous rinse solution as a laundry sour.
- 5. The process of claim 4 wherein the temperature of the rinse solution is held at 160 to 190* F and the fabric is treated with the rinse solution of the laundry sour for about 10 to 25 minutes, whereby reclaiming of the laundered fabric is achieved.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11588571A | 1971-02-16 | 1971-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3676353A true US3676353A (en) | 1972-07-11 |
Family
ID=22363968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US115885A Expired - Lifetime US3676353A (en) | 1971-02-16 | 1971-02-16 | Nonflouride laundry sour containing fumaric acid |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3676353A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904359A (en) * | 1972-09-07 | 1975-09-09 | Colgate Palmolive Co | Post-wash fabric treating method |
| US4024085A (en) * | 1973-10-03 | 1977-05-17 | Fuji Photo Film Co., Ltd. | Gum removing solution for lithographic plate |
| US4704212A (en) * | 1984-12-03 | 1987-11-03 | Henkel Kommanditgesellschaft Auf Aktien | Composition and process for the aftertreatment of washed laundry |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1435541A (en) * | 1921-05-12 | 1922-11-14 | Phil L Mabrey | Laundry preparation |
| US1925843A (en) * | 1930-04-10 | 1933-09-05 | Sterling Borax Company | Compound for use in clothes washing |
| US2141589A (en) * | 1936-01-09 | 1938-12-27 | Howard B Bishop | Laundry blueing and souring composition |
| US2331396A (en) * | 1943-10-12 | Latjndry sour | ||
| US2379458A (en) * | 1945-07-03 | Laundry finishing composition | ||
| US2422066A (en) * | 1947-06-10 | Laundky souking composition | ||
| US2426836A (en) * | 1947-09-02 | Noncaking laundry sour | ||
| US2460680A (en) * | 1949-02-01 | Laundry souring composition |
-
1971
- 1971-02-16 US US115885A patent/US3676353A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331396A (en) * | 1943-10-12 | Latjndry sour | ||
| US2379458A (en) * | 1945-07-03 | Laundry finishing composition | ||
| US2422066A (en) * | 1947-06-10 | Laundky souking composition | ||
| US2426836A (en) * | 1947-09-02 | Noncaking laundry sour | ||
| US2460680A (en) * | 1949-02-01 | Laundry souring composition | ||
| US1435541A (en) * | 1921-05-12 | 1922-11-14 | Phil L Mabrey | Laundry preparation |
| US1925843A (en) * | 1930-04-10 | 1933-09-05 | Sterling Borax Company | Compound for use in clothes washing |
| US2141589A (en) * | 1936-01-09 | 1938-12-27 | Howard B Bishop | Laundry blueing and souring composition |
Non-Patent Citations (2)
| Title |
|---|
| Industrial Detergency, Edited by Wm. W. Niven, Jr., Reinhold Publishing Co., N.Y., 1955, pages 65 & 66. * |
| Laundry Sours, by Dr. Foster D. Snell in Soap, Vol. 13, No. 6, June 1937, pages 31 34. * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904359A (en) * | 1972-09-07 | 1975-09-09 | Colgate Palmolive Co | Post-wash fabric treating method |
| US3954630A (en) * | 1972-09-07 | 1976-05-04 | Colgate-Palmolive Company | Post-wash fabric treating composition and method |
| US4024085A (en) * | 1973-10-03 | 1977-05-17 | Fuji Photo Film Co., Ltd. | Gum removing solution for lithographic plate |
| US4704212A (en) * | 1984-12-03 | 1987-11-03 | Henkel Kommanditgesellschaft Auf Aktien | Composition and process for the aftertreatment of washed laundry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: DIVERSEY WYANDOTTE CORPORATION, A CORP. OF DE., MI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIVERSEY CORPORATION THE;REEL/FRAME:003954/0125 Effective date: 19820107 Owner name: DIVERSEY WYANDOTTE CORPORATION, 1532 BIDDLE AVE., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DIVERSEY CORPORATION THE;REEL/FRAME:003954/0125 Effective date: 19820107 |