WO1988005461A1 - Composition de carbonate de sodium/hydroxyde de sodium/hypochlorite de sodium et procede de detachage - Google Patents

Composition de carbonate de sodium/hydroxyde de sodium/hypochlorite de sodium et procede de detachage Download PDF

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Publication number
WO1988005461A1
WO1988005461A1 PCT/US1988/000140 US8800140W WO8805461A1 WO 1988005461 A1 WO1988005461 A1 WO 1988005461A1 US 8800140 W US8800140 W US 8800140W WO 8805461 A1 WO8805461 A1 WO 8805461A1
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WO
WIPO (PCT)
Prior art keywords
fabric
sodium
composition
grams per
per liter
Prior art date
Application number
PCT/US1988/000140
Other languages
English (en)
Inventor
Donald P. Molony
Original Assignee
Molony Donald P
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Molony Donald P filed Critical Molony Donald P
Publication of WO1988005461A1 publication Critical patent/WO1988005461A1/fr

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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
    • C11D7/06—Hydroxides
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3953—Inorganic bleaching agents
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3956—Liquid compositions

Definitions

  • the present invention relates to a composition and process for removing stains from fabric.
  • Protein-containing stains in fabric present a difficult laundry problem.
  • Blood presents a particular problem in that it contains a number of difficult-to- re ove components, including iron and a variety of complex proteins. If blood becomes set in a fabric, such as by laundering the fabric or neglecting to treat the stain immediately, the stain may resist known laundering treatments, and garments or other stained articles may have to be discarded.
  • enzyme-containing detergents are employed to remove blood stains.
  • U.S. Patent No. 3,553,139 to McCarty et al discloses a composition containing an enzyme, a peroxy compound and a mixture of builder salts and organic detergents. The composition is stated to be effective in removing blood and other stains from fabrics and textiles.
  • Enzymes particularly in combination with peroxy compounds, tend to be harsh both to. the fabric and to the hands of the user, and may even elicit an allergic reaction.
  • enzymes which are themselves proteinaceous, may be inactivated in the presence of peroxy compounds or at extremes of pH.
  • enzymes are a relatively high cost component of detergents, thus increasing the cost of manufacturing the detergent.
  • U.S. Patent No. 3,360,476 to Krusius discloses a liquid composition comprising 3 to 12 parts by weight of an alkali metal phosphate (e.g., trisodium phosphate) for use as a grease-cutting detergent. Krusius acknow ⁇ ledges that the composition is expected to be harsh on the hands, and therefore teaches the addition of an emollient. " Further, U.S. Patent No. 1,870,804 to Gale et al discloses a composition comprising a double salt of trisodium phosphate and sodium metaborate which is used to remove grease and dirt on citrus fruit. It would not be expected that a composition which is effective in removing grease (hydrophobic) stains would be highly effective in removing proteinaceous (hydrophilic) stains as well.
  • an alkali metal phosphate e.g., trisodium phosphate
  • Krusius acknow ⁇ ledges that the composition is expected to be harsh on the hands, and
  • the present invention is a composition for removing stains from fabric comprising an aqueous solu ⁇ tion of sodium carbonate, sodium hydroxide, and sodium hypochlorite.
  • the composition is effective in substantially completely removing even set blood stains from even certain delicate fabrics without undesirable effects associated with enzymatic detergents.
  • the invention in another embodiment, relates to a process for removing stains from fabric comprising (a) contacting stained fabric with an aqueous solution comprising sodium carbonate, sodium hydroxide, and sodium hypochlorite; (b) allowing the solution to remain in contact with the fabric for a period of time sufficient to substantially completely remove any stain; and (c) rinsing the fabric in water to dilute and substantially remove the solution.
  • the present invention is a composition for removing stains from fabric comprising an aqueous solution of sodium carbonate, sodium hydroxide and sodium hypochlorite.
  • the composition is effective in substantially completely removing even set blood stains from even certain delicate fabrics without undesirable effects associated with enzymatic detergents.
  • the invention relates to a composition for removing stains which is an aqueous solution comprising between about 0.25 and
  • the invention relates to a process for removing stains from fabric comprising (a) contacting stained fabric with a solution comprising sodium carbonate, sodium hydroxide, and sodium hypochlorite; (b) allowing the solution to remain in contact with the fabric for a period of time sufficient to substantially completely remove any stain; and (c) rinsing the fabric in water to dilute and substantially remove the solution.
  • the invention relates to a process for removing stains from fabric comprising (a) contacting stained fabric with a solution comprising between about 0.25 and 15.0 grams per liter of sodium carbonate, between about 0.5 and 10.0 grams per liter of sodium hydroxide, and between about 1.0 and about 4.0 percent by weight of sodium hypochlorite based on active chlorine content; (b) allowing the solution to remain in contact with the fabric for a period of less than about 10 minutes; and rinsing the fabric in water to dilute and substantially completely remove the solution.
  • Sodium carbonate is readily available commercially, and any commercially available grade or variety is suitable for use in the present invention, including the monohydrate.
  • the second component sodium hydroxide
  • any commercially available grade or variety is suitable for use in the present invention, including reagent grade, granulated
  • SUBSTITUTESHEET (containing 60% to 76% Na 2 0) ; and solution (50% or 73% sodium hydroxide) .
  • Sodium hypochlorite is most commonly produced by electrolyzing a cold, dilute solution of salt water (e.g., sea water). Addition of sodium hydroxide, as in the present invention, confers additional stability to the solution.
  • sodium hypochlorite is supplied in an aqueous solution comprising about 2 to 10% by weight based on active chlorine sodium hypochlorite (i.e., between about 1.0 ⁇ and 6.0 grams per liter available chlorine).
  • the hypochlorite solution contains about 5.25% sodium hypochlorite by weight based on active chlorine content (about 3 grams per liter) , the remainder of the composition comprising water and. other inert ingredients.
  • active chlorine content is meant available chlorine concentration.
  • composition of the present invention is to add chlorine to a cold dilute solution of sodium hydroxide.
  • the composition also includes a suitable surfactant to improve wetting and penetration of the composition of the present invention into the fabric, and to solubilize a fragrance, if employed.
  • the surfactant can be any surfactant which is stable in the presence of sodium hypochlorite.
  • surfactants are well known to those skilled in the art. Examples of such surfactants are alkyl sulfates, betaines, alkyl benzene sulfonates, and disulfonated diphenyl oxides.
  • SUBSTITUTE SHEET particularly preferred group of surfactants are those sold under the trademark DOWFAX by Dow Chemical Company of Midland, Michigan.
  • DOWFAX surfactants DOWFAX 2A1 (sodium dodecyl diphenyloxide disulfonate) 5 and DOWFAX XDS 8390.00 (C 16 alpha-olefin disulfonate).
  • the surfactant is typically added at between about 0.1 and 5.0% by weight.
  • fragrance oil is added as a perfuming agent.
  • a solution is prepared by combining between 0.25 and 15.0 grams (dry weight) sodium carbonate, and between about 0.5 and 10.0 grams sodium hydroxide; dissolving in combination in 250 to 500 ml of water; and adding the resulting solution to
  • the ingredients may be mixed simply by pouring the specified proportions of sodium carbonate,
  • ⁇ 30 sodium hydroxide and sodium hypochlorite into a suitable container, e.g., of glass., ceramic, etc, and adding water to bring the volume to the specified . amount. Agitation may be employed to assist mixing.
  • composition may be applied topically to the stained fabric in a number of ways. It is envisioned that any known method for applying a small quantity of a solution to a surface may be employed. In preferred embodiments, the solution may be applied as a spray in a non-aerosol pump, rolled or brush on, or dabbed onto the fabric through an absorbent fabric (e.g., felt) stopper or sponge.
  • absorbent fabric e.g., felt
  • Stains which may be removed in accordance with the present invention include fresh or set blood or serum stains (including menstrual blood stains) ; fresh or set perspiration, mucous, pus or any other body exudates; wine, stains from flowers.and stems of plants, mildew, rust, ball point pens, fabric dye, fruit, chocolate, tea, coffee, and fruit, synthetic, and vegetable dyes.
  • set is meant stains which become difficult to remove either by the passage of time (oxidation process) or by laundering (e.g., at temperatures over about 55°C) .
  • set blood stains is meant stains which have become brownish in color.
  • the composition is to remain in contact with the stained fabric for a period of time necessary to remove the stain completely, which is usually between 30 seconds and 10 minutes. To obtain the maximum stain removal, it is preferred that fabric be soaked in the composition of the present invention. Following contact with the solution, the fabric is rinsed, preferably in cold water, to remove the solution.
  • the temperature of the water may be between 35°C and 55°C, and preferably between 40°C and 50°C. This rinsing step is necessary to dilute and
  • SUBSTITUTE SHEET substantially remove the solution from the fabric.
  • the fabric is laundered according to the manu acturer's specifications (by hand or machine washing) to restore softness to the fabric and for sanitation reasons.
  • any type of fabric may be treated in accord- ance with the present invention without damage to the fabric.
  • natural fabrics including cotton, and synthetic fabrics including nylon, rayon, Orion (trademark of E.I. duPont de Nemours for an acrylic fiber) , Dacron (trademark of E.I. duPont de Nemours for polyethylene terephthalate) , and various polyesters and blends thereof may be treated without harmful conse ⁇ quences.
  • Silk and wool will begin to be burned and/or dissolve on exposure to the solution of the present invention after about five seconds of contact.
  • compositions and process of the present invention are suitable for use in removing stains in garments, linens, hospital gowns, and upholstery, as> well as any item containing either natural or synthetic fibers, with the exception of silk and wool.
  • composition was applied to a 50% cotton/50% polyester blend which had blood stains set by laundering and allowed to remain in contact with the fabric for approximately 60 seconds. After rinsing, the stain was visually undetectable.
  • Example 1 1000 ml of water and the procedure of Example 1 sub ⁇ stantially followed on the following fabrics for each of the following periods of time, except that fresh blood was used:
  • a set blood stained fabric was contacted with each of the following aqueous solutions in a manner identical to the procedure of Example 1. In each case, the contact occurred for 30 minutes.
  • a set blood-stained fabric was contacted for 30 minutes with a solution prepared by dissolving 2.5 g of each of the following in 250 is of water.
  • Woolite (trademark of Boyle-Midway, Inc. for a phosphate-free detergent containing organic surfactants) . Woolite Gentle Cycle (trademark of Boyle
  • Snowy Bleach (trademark of Gold Seal Co. for a detergent containing sodium perborate and sodium carbonate) .
  • Clorox 2 (trademark of The Clorox Company for a phosphate-free detergent containing sodium carbonate, sodium metaborate, and a protease) .
  • Diaperpur (trademark of Boyle-Midway, Inc. for a detergent containing sodium carbo ⁇ nate) .
  • Miraq (trademark of Minnetonka Corp. for a detergent containing tripolyphosphate, nonylphenol, and sodium carbonate) .

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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)
  • Detergent Compositions (AREA)

Abstract

La composition et le procédé décrit servent à détacher des tissus. Ladite composition comprend une solution de carbonate de sodium, d'hydroxyde de sodium et d'hypochlorite de sodium. Ledit procédé consiste à (a) mettre en contact le tissu taché avec une composition comprenant une solution aqueuse de carbonate de sodium, d'hydroxyde de sodium et d'hypochlorite de sodium; (b) à laisser la solution en contact avec le tissu pendant une durée suffisante pour éliminer pratiquement complètement toutes tâches; et (c) à rincer le tissu dans de l'eau afin de diluer et de pratiquement éliminer la solution. La composition et le procédé de la présente invention sont très efficaces pour éliminer les tâches tenaces de sang, de mucus et de transpiration ainsi que d'autres tâches de protéines sur une variété de types de tissus, sans avoir d'effet néfaste sur le tissu ou les mains de l'utilisateur.
PCT/US1988/000140 1987-01-23 1988-01-25 Composition de carbonate de sodium/hydroxyde de sodium/hypochlorite de sodium et procede de detachage WO1988005461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US607887A 1987-01-23 1987-01-23
US006,078 1987-01-23

Publications (1)

Publication Number Publication Date
WO1988005461A1 true WO1988005461A1 (fr) 1988-07-28

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WO (1) WO1988005461A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878951A (en) * 1989-01-17 1989-11-07 A & L Laboratories, Inc. Low-foaming alkaline, hypochlorite cleaner
EP0668345A1 (fr) * 1994-02-22 1995-08-23 The Procter & Gamble Company Compositions de blanchiment d'hypochlorite
EP0688857A1 (fr) * 1994-06-24 1995-12-27 The Procter & Gamble Company Compositions de blanchiment à base d'hypochlorite
EP0743279A1 (fr) 1995-05-16 1996-11-20 The Procter & Gamble Company Procédé pour la préparation de compositions de blanchiment à base d'hypochlorite
US5843190A (en) * 1993-11-11 1998-12-01 The Procter & Gamble Company Hypochlorite bleaching compositions
EP0905225A1 (fr) * 1997-09-19 1999-03-31 The Procter & Gamble Company Procédés pour le blanchissage du linge
EP0653483B1 (fr) * 1993-11-11 1999-04-14 The Procter & Gamble Company Usage des silicates dans les compositions de blanchiment à base d'hypochlorite
EP0653482B1 (fr) * 1993-11-11 2000-03-15 The Procter & Gamble Company Composition de blanchiment à base d'hypochlorite
US6211131B1 (en) 1996-05-10 2001-04-03 The Clorox Company Sequesterants as hypochlorite bleach enhancers
WO2013055863A1 (fr) 2011-10-12 2013-04-18 Ecolab Usa Inc. Compositions nettoyantes modérément alcalines pour élimination de salissures protéiques et graisseuses à basses températures

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758409A (en) * 1970-12-09 1973-09-11 Kao Corp Cleaning and bleaching liquid composition
US4116851A (en) * 1977-06-20 1978-09-26 The Procter & Gamble Company Thickened bleach compositions for treating hard-to-remove soils
US4399050A (en) * 1980-05-13 1983-08-16 Sandoz Products Limited Bleach composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758409A (en) * 1970-12-09 1973-09-11 Kao Corp Cleaning and bleaching liquid composition
US4116851A (en) * 1977-06-20 1978-09-26 The Procter & Gamble Company Thickened bleach compositions for treating hard-to-remove soils
US4399050A (en) * 1980-05-13 1983-08-16 Sandoz Products Limited Bleach composition

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878951A (en) * 1989-01-17 1989-11-07 A & L Laboratories, Inc. Low-foaming alkaline, hypochlorite cleaner
EP0653482B1 (fr) * 1993-11-11 2000-03-15 The Procter & Gamble Company Composition de blanchiment à base d'hypochlorite
EP0653483B1 (fr) * 1993-11-11 1999-04-14 The Procter & Gamble Company Usage des silicates dans les compositions de blanchiment à base d'hypochlorite
US5843190A (en) * 1993-11-11 1998-12-01 The Procter & Gamble Company Hypochlorite bleaching compositions
EP0668345A1 (fr) * 1994-02-22 1995-08-23 The Procter & Gamble Company Compositions de blanchiment d'hypochlorite
EP0688857A1 (fr) * 1994-06-24 1995-12-27 The Procter & Gamble Company Compositions de blanchiment à base d'hypochlorite
EP0743279A1 (fr) 1995-05-16 1996-11-20 The Procter & Gamble Company Procédé pour la préparation de compositions de blanchiment à base d'hypochlorite
US6297209B1 (en) 1996-05-10 2001-10-02 The Clorox Company Sequesterants as hypochlorite bleach enhancers
US6211131B1 (en) 1996-05-10 2001-04-03 The Clorox Company Sequesterants as hypochlorite bleach enhancers
EP0905225A1 (fr) * 1997-09-19 1999-03-31 The Procter & Gamble Company Procédés pour le blanchissage du linge
WO1999015617A1 (fr) * 1997-09-19 1999-04-01 The Procter & Gamble Company Compositions de blanchiment
WO2013055863A1 (fr) 2011-10-12 2013-04-18 Ecolab Usa Inc. Compositions nettoyantes modérément alcalines pour élimination de salissures protéiques et graisseuses à basses températures
EP2766464A4 (fr) * 2011-10-12 2015-06-17 Ecolab Usa Inc Compositions nettoyantes modérément alcalines pour élimination de salissures protéiques et graisseuses à basses températures
US9803160B2 (en) 2011-10-12 2017-10-31 Ecolab Usa Inc. Moderately alkaline cleaning compositions for proteinaceous and fatty soil removal at low temperatures
US10676695B2 (en) 2011-10-12 2020-06-09 Ecolab Usa Inc. Moderately alkaline cleaning compositions for proteinaceous and fatty soil removal at low temperatures
US11236291B2 (en) 2011-10-12 2022-02-01 Ecolab Usa Inc. Moderately alkaline cleaning compositions for proteinaceous and fatty soil removal at low temperatures

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