EP2285945A1 - Handwaschverfahren für stoffe - Google Patents

Handwaschverfahren für stoffe

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Publication number
EP2285945A1
EP2285945A1 EP09758962A EP09758962A EP2285945A1 EP 2285945 A1 EP2285945 A1 EP 2285945A1 EP 09758962 A EP09758962 A EP 09758962A EP 09758962 A EP09758962 A EP 09758962A EP 2285945 A1 EP2285945 A1 EP 2285945A1
Authority
EP
European Patent Office
Prior art keywords
fabric
soaked
wash liquor
rinse solution
rinsing
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.)
Withdrawn
Application number
EP09758962A
Other languages
English (en)
French (fr)
Inventor
Daniel Victoria Lapinig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of EP2285945A1 publication Critical patent/EP2285945A1/de
Withdrawn legal-status Critical Current

Links

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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
    • C11D2111/12—
    • C11D2111/44—

Definitions

  • the present invention relates to laundering s methods. Specifically, the present invention relates to hand laundering methods.
  • Hand laundering fabrics such as cloths is a tiresome and resource-intensive activity.
  • about two basins of water are used; one for the pre-wetting & scrubbing prior to using the wash liquor, and then one for the actual wash liquor (especially if ordinary detergent powder is used).
  • three to five basins of water are consumed.
  • about five to six basins of water are used from first wetting to last rinsing.
  • laundry detergents are predissolved in a basin to form a wash liquor, and the clothes are dipped into and/or added to thereto and scrubbed by hand, with a washboard, a brush or other scrubbing device, etc. to remove soils and stains.
  • pretreating with specialized stain removers e.g., bleaches, brushes, devices, etc.
  • stain removers e.g., bleaches, brushes, devices, etc.
  • the present invention relates to an improved method for laundering a fabric using an improved laundering system.
  • the method includes the steps of providing a laundering system, adding water to a wash basin, dispersing the laundry detergent in a wash basin, adding a fabric to the wash basin, forming a wash liquor by combining the water and the laundry detergent, soaking the fabric in the wash liquor for a washing time period of from about 30 minutes to about 12 hours to form a soaked fabric, removing the soaked fabric from the wash liquor, removing wash liquor from the soaked fabric, dispersing the rinsing composition in water in a rinse basin to form a rinse solution, adding the soaked fabric to the rinse solution, soaking the soaked fabric in the rinse solution for a rinsing time period of from about 1 minute to about 1 hour to form a rinsed fabric, removing the rinsed fabric from the rinse solution, removing rinse solution from the rinsed fabric , and drying the rinsed fabric.
  • the laundering system contains a laundry detergent and a rinsing composition.
  • the laundry detergent is suitable for overnight soaking containing therein a bactericide and retards bacterial growth upon soaking a bacteria- contaminated fabric in a wash liquor for 6 hours at 25 0 C.
  • an improved fabric laundering method can both reduce manual effort by reducing or eliminating the need for most scrubbing and reduce water use required for the normal washing and/or rinsing process. Surprisingly, this is achieved while also avoiding malodor caused by bacterial growth in the wash liquor when it is left soaking for many hours. Furthermore, the reduction in scrubbing can help to reduce fabric abrasion, leading to longer lasting clothes and clothes that look newer for a longer time.
  • the improved fabric laundering method can also reduce or even eliminate the need for scrubbing during the laundering process, thereby reducing hand and/or skin abrasion as compared to the normal scrubbing process.
  • pre-wetting means specifically adding water to a fabric prior to adding the to the wash liquor. This can be achieved by dipping, submerging, inundating, etc. the fabric with water.
  • the present innovation is an improved laundering method for hand washing fabrics such as clothes, curtains, sheets, tablecloths, etc.
  • the method includes the steps of providing a laundering system, adding water to a wash basin, dispersing the laundry detergent in a wash basin, adding a fabric to the wash basin, forming a wash liquor by combining the water and the laundry detergent, soaking the fabric in the wash liquor for a washing time period of from about 30 minutes to about 12 hours to form a soaked fabric, removing the soaked fabric from the wash liquor, removing wash liquor from the soaked fabric, dispersing the rinsing composition in water in a rinse basin to form a rinse solution, adding the soaked fabric to the rinse solution, soaking the soaked fabric in the rinse solution for a rinsing time period of from about 1 minute to about 1 hour to form a rinsed fabric, removing the rinsed fabric from the rinse solution, removing rinse solution from the rinsed fabric, and drying the rinsed fabric.
  • the laundering system contains a laundry detergent and a rinsing composition.
  • the laundry detergent is suitable for overnight soaking containing therein a bactericide and retards bacterial growth upon soaking a bacteria- contaminated fabric in a wash liquor for 6 hours at 25 0 C.
  • the improvement in this method is the combination of a specific high performance laundry detergent and a rinsing composition to provide a holistically, comprehensively better cleaning experience which saves effort, resources, and/or money while providing excellent results.
  • the laundry detergent is suitable for overnight soaking which means that the laundry detergent must contain sufficient bactericide to at least retard bacterial growth, as described herein.
  • the typical laundry detergent bactericide which primarily retards bacterial growth in an extended soaking situation is selected from, for example, a bleach, an enzyme, a surfactant, and a mixture thereof, or a bleach, a surfactant and a mixture thereof, or a bleach and a mixture thereof.
  • the laundry detergent may include as the bactericide a bleach selected from the group consisting of a catalytic metal complex, a peroxygen source, a bleach activator, a bleach booster, a photobleach, a free radical initiator, a hypohalite bleach, and a mixture thereof, or a peroxygen source, a bleach activator, a hypohalite bleach, and a mixture thereof.
  • a catalytic metal complex examples include, but are not limited to, manganese-based catalysts such as Mn IV 2 (U-O) 3 (1, 4,7-trimethyl-l,4,7-triazacyclononane) 2 (PF6)2 disclosed in U.S. Patent 5,576,282; cobalt based catalysts disclosed in U.S.
  • Patent 5,597,936 such as cobalt pentaamine acetate salts having the formula [Co(NH 3 ) S O Ac] T y , wherein "OAc” represents an acetate moiety and "T y " is an anion; transition metal complexes of a macropolycyclic rigid ligand - abbreviated as "MRL”.
  • MRLs transition metal complexes of a macropolycyclic rigid ligand - abbreviated as "MRL”.
  • Suitable metals in the MRLs include Mn, Fe, Co, Ni, Cu, Cr, V, Mo, W, Pd, and Ru in their various oxidation states.
  • suitable MRLs include: Dichloro- 5,12-diethyl-l,5,8,12-tetraazabicyclo[6.6.2]hexadecane Manganese(II), Dichloro-5,12-diethyl- 1,5,8, 12-tetraazabicyclo[6.6.2]hexadecane Manganese(III) Hexafluorophosphate and Dichloro- 5-n-butyl-12-methyl-l,5,8,12-tetraaza-bicyclo[6.6.2]hexadecane Manganese(II).
  • Suitable transition metal MRLs are readily prepared by known procedures, such as taught for example in WO 00/332601, and U.S. 6,225,464.
  • Suitable peroxygen sources include preformed peracids, a hydrogen peroxide source in combination with a bleach activator, or a mixture thereof.
  • Suitable preformed peracids include compounds selected from the group consisting of a percarboxylic acid and salt, a percarbonic acid and salt, a perimidic acid and salt, a peroxymonosulfuric acid and salt, and a mixture thereof.
  • Suitable sources of hydrogen peroxide include compounds selected from the group consisting of a perborate compound, a percarbonate compound, a perphosphate compound, a persilicate compound, and a mixture thereof, or a perborate compound, a percarbonate compound, and a mixture thereof.
  • Suitable types and levels of peroxygen sources are found in U.S. Patent Nos. 5,576,282, 6,306,812 Bl and 6,326,348 Bl that are incorporated by reference.
  • Suitable bleach activators include, but are not limited to, perhydrolyzable esters and perhydrolyzable imides such as, tetraacetyl ethylene diamine, octanoylcaprolactam , benzoyloxybenzenesulphonate, nonanoyloxybenzenesulphonate, benzoylvalerolactam, dodecanoyloxybenzenesulphonate.
  • Suitable bleach boosters include, but are not limited to, those described US Patent 5,817,614.
  • the laundry detergent typically contains from about 0.5% to about 30%, or from about 1% to about 20%, or from about 1.5% to about 10% of a bleach.
  • a level is sufficient to provide the bactericide benefits herein at typical laundry detergent dilutions.
  • the compositions and method herein can be adjusted to provide on the order of at least one part per hundred million of catalytic metal complex and/or a bleach booster in the aqueous washing.
  • suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, ⁇ -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, amylases, or combinations thereof and may be of any suitable origin.
  • a detersive enzyme mixture useful herein is a protease, lipase, cutinase and/or cellulase in conjunction with amylase. While detersive enzymes are described in U.S. Patent No. 6,579,839, it is believed that bleaching enzymes, protease enzymes, cellulase enzymes, lysozyme enzymes, lipase enzymes, and amylase enzymes are particularly suited towards retarding bacterial growth.
  • Enzymes are normally present at up to about 5 mg, more typically from about 0.01 mg to about 3 mg by weight of active enzyme per gram of the detergent. Stated another way, the detergent herein will typically contain from about 0.001% to about 5%, or from about 0.01% to about 2%, or from about 0.05% to about 1% by weight of an enzyme, typically a commercial enzyme preparation. Protease enzymes are present at from about 0.005 to about 0.1 AU of activity per gram of detergent. Proteases useful herein include those like subtilisins from Bacillus [e.g. subtilis, lentus, licheniformis, amyloliquefaciens (BPN, BPN'), alcalophilus,] e.g.
  • Esperase® * Alcalase®, Everlase® and Savinase® (Novozymes), BLAP and variants (Henkel). Further proteases are described in EP 130756, WO 91/06637, WO 95/10591 and WO 99/20726.
  • Amylases ( ⁇ and/or ⁇ ) are described in GB Pat. # 1 296 839, WO 94/02597 and WO
  • the cellulase herein includes bacterial and/or fungal cellulases with a pH optimum of between 5 and 9.5. Suitable cellulases are disclosed in U.S. Pat. No. 4,435,307 to Barbesgoard, et al., issued Mar. 6, 1984. Cellulases useful herein include bacterial or fungal cellulases, e.g. produced by Humicola insolens, particularly DSM 1800, e.g. 5OkD and ⁇ 43kD (Carezyyme®). Also suitable cellulases are the EGIII cellulases from Trichoderma longibrachiatum.
  • WO 02/099091 by Novozymes describes an enzyme exhibiting endo-beta-glucanase activity (EC 3.2.1.4) endogenous to Bacillus sp., DSM 12648; for use in detergent and textile applications; and an anti-redeposition endo-glucanase in WO 04/053039.
  • Kao's EP 265 832 describes alkaline cellulase K, CMCase I and CMCase II isolated from a culture product of Bacillus sp KSM-635.
  • Kao further describes in EP 1 350 843 (KSM S237; 1139; KSM 64; KSM N131), EP 265 832A (KSM 635, FERM BP 1485) and EP 0 271 044 A (KSM 534, FERM BP 1508; KSM 539, FERM BP 1509; KSM 577, FERM BP 1510; KSM 521, FERM BP 1507; KSM 580, FERM BP 1511; KSM 588, FERM BP 1513; KSM 597, FERM BP 1514; KSM 522, FERM BP 1512; KSM 3445, FERM BP 1506; KSM 425.
  • FERM BP 1505 readily-mass producible and high activity alkaline cellulases/endo-glucanases for an alkaline environment.
  • Such endo- glucanase may contain a polypeptide (or variant thereof) endogenous to one of the above Bacillus species.
  • Other suitable cellulases are Family 44 Glycosyl Hydrolase enzymes exhibiting endo-beta-l,4-glucanase activity from Paenibacilus polyxyma (wild- type) such as XYG1006 described in WO 01/062903 or variants thereof.
  • Carbohydrases useful herein include e.g. mannanase (see, e.g., U.S.
  • Patent 6,060,299 pectate lyase (see, e.g., WO 99/27083), cyclomaltodextrin glucanotransferase (see, e.g., WO96/33267), and/or xyloglucanase (see, e.g., WO 99/02663).
  • Bleaching enzymes useful herein with enhancers include e.g. peroxidases, laccases, oxygenases, lipoxygenase (see, e.g., WO 95/26393), and/or (non-heme) haloperoxidases.
  • Suitable endoglucanases include: 1) An enzyme exhibiting endo-beta-l,4-glucanase activity (E.C. 3.2.1.4), with a sequence at least 90%, or at least 94%, or at least 97% or at least 99%, or 100% identity to the amino acid sequence of positions 1-773 of SEQ ID NO:2 in WO 02/099091; or a fragment thereof that has endo-beta-l,4-glucanase activity.
  • GAP in the GCG program determines identity using a GAP creation penalty of 3.0 and GAP extension penalty of 0.1. See WO 02/099091 by Novozymes A/S on December 12, 2002, e.g., CellucleanTM by Novozymes A/S.
  • GCG refers to sequence analysis software package (Accelrys, San Diego, CA, USA). GCG includes a program called GAP which uses the Needleman and Wunsch algorithm to find the alignment of two complete sequences that maximizes the number of matches and minimizes the number of gaps; and 2) Alkaline endoglucanase enzymes described in EP 1 350 843A published by Kao on October 8, 2003 ([0011]-[0039] and examples 1-4).
  • Suitable lipases include those produced by Pseudomonas and Chromobacter, and LIPOLASE®, LIPOLASE ULTRA®, LIPOPRIME® and LIPEX® from Novozymes. See also Japanese Patent Application 53-20487, laid open on Feb. 24, 1978, available from Areario Pharmaceutical Co. Ltd., Nagoya, Japan, under the trade name Lipase P "Amano.”
  • Other commercial lipases include Amano-CES, lipases ex Chromobacter viscosum, available from Toyo Jozo Co., Tagata, Japan; and Chromobacter viscosum lipases from U.S. Biochemical Corp., U.S.A. and Diosynth Co., The Netherlands, and lipases ex Pseudomonas gladioli.
  • cutinases [EC 3.1.1.50] and esterases.
  • an enzyme stabilization system may also be present. Such systems are well-known in the art, and to the artisan.
  • the surfactant useful herein typically is selected from an anionic surfactant, a nonionic surfactant, a cationic surfactant, a zwitterionic surfactant, an ampholytic surfactant, a semi-polar nonionic surfactant, a gemini surfactant, and a mixture thereof; or an anionic surfactant, a nonionic surfactant, a zwitterionic surfactant, and a mixture thereof; or an anionic surfactant, a nonionic surfactant, and a mixture thereof.
  • the surfactant is typically present at from about 1% to about 80%, or from about 5% to about 50%, or from about 10% to about 35%.
  • anionic surfactant useful herein has an alkyl chain length of from about 6 carbon atoms (Ce), to about 22 carbon atoms (C 22 ), and are well-known in the art of detergent formulations.
  • anionic surfactants useful herein include: a) linear alkyl benzene sulfonates (LAS), especially Cn-Ci 8 LAS; b) primary, branched-chain and random alkyl sulfates (AS) , especially C 1 0-C 2 0 AS; c) secondary (2,3) alkyl sulfates having formulas (I) and (II), especially C I0 -C I8 secondary alkyl sulfates:
  • M in formulas (I) and (II) is hydrogen or a cation which provides charge neutrality.
  • all M units, whether associated with a surfactant or adjunct ingredient, can either be a hydrogen atom or a cation depending upon the form isolated by the artisan or the relative pH of the system wherein the compound is used.
  • Non- limiting examples of preferred cations include sodium, potassium, ammonium, and mixtures thereof.
  • x is an integer of at least about 7, or at least about 9; and y is an integer of at least 8, or at least about 9; d) alkyl alkoxy sulfates (AE x S) , especially Ci 0 -Ci 8 AE x S wherein x is from about 1 to about 30, or from about 2 to about 10; e) alkyl alkoxy carboxylates, especially C ⁇ -Cis alkyl alkoxy carboxylates, preferably comprising about 1-5 ethoxy units; f) mid-chain branched alkyl sulfates as discussed in US Patent No. 6,020,303 to Cripe, et al., granted on February 1, 2000; and US Patent No.
  • the present invention contains from about 0.1% to about 25%, or from about 0.5% to about 20%, or from about 1% to about 17% by weight of the final composition of a nonionic surfactant.
  • nonionic surfactants include: a) Ci 2 -Ci 8 alkyl ethoxylates, such as, the NEODOL ® nonionic surfactants from Shell Corp.; b) C 6 -C i 2 alkyl phenol alkoxylates wherein the alkoxylate units are a mixture of ethyleneoxy and propyleneoxy units; c) C I2 -C I8 alcohol and C O -C I2 alkyl phenol condensates with ethylene oxide/propylene oxide block polymers such as Pluronic ® from BASF Aktiengesellschaft; d) C 14 -C 22 mid-chain branched alcohols (BA) as discussed in US Patent No.
  • Non- limiting examples of a cationic surfactant includes: the quaternary ammonium surfactants, which can have up to 26 carbon atoms. If present, the cationic surfactant is typically from about 0.75% to about 5% by weight.
  • Non-limiting examples of a zwitterionic surfactant includes: derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. See U.S. Patent No.
  • betaine including alkyl dimethyl betaine and cocodimethyl amidopropyl betaine, Cg to Ci 8 (preferably Ci 2 to Ci 8 ) amine oxides and sulfo and hydroxy betaines, such as N-alkyl-N,N-dimethylammino-l-propane sulfonate where the alkyl group can be C$ to Ci 8 , preferably Ci 0 to Ci 4 .
  • Non-limiting examples of ampholytic surfactants include: aliphatic derivatives of secondary or tertiary amines, or aliphatic derivatives of heterocyclic secondary and tertiary amines in which the aliphatic radical can be straight- or branched-chain.
  • one of the aliphatic substituents contains at least about 8 carbon atoms, typically from about 8 to about 18 carbon atoms, and at least one contains an anionic water-solubilizing group, e.g. carboxy, sulfonate, sulfate, etc. See, e.g., U.S. Patent No. 3,929,678 to Laughlin, et al., issued December 30, 1975 at column 19, lines 18-35, for examples of ampholytic surfactants.
  • Non-limiting examples of semi-polar nonionic surfactants include: water-soluble amine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; water-soluble phosphine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; and water-soluble sulfoxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and a moiety selected from the group consisting of alkyl and hydroxyalkyl moieties of from about 1 to about 3 carbon atoms. See WO 01/32816; US 4,681,704; and US 4,133,779.
  • Gemini Surfactants are compounds having at least two hydrophobic groups and at least two hydrophilic groups per molecule have been introduced. These have become known as "gemini surfactants" in the literature, e.g., Chemtech, March 1993, pp. 30-33, and J. Am. Chem. SoC 1 , 115, 10083-90 (1993) and the references cited therein.
  • surfactants are typically commodities that are readily-available from a variety of suppliers around the world, in any quantity and quality desired.
  • laundry detergent retards bacterial growth upon soaking in a wash liquor thereof, with a fabric contaminated with bacteria, for 6 hours at 25 0 C as per the test described herein. This is to ensure that malodor is not generated during the soaking process in the wash liquor.
  • Rinsing compositions are well-known in the art and typically include laundry sours, rinse aids, laundry rinses, etc. Rinsing compositions typically contain ingredients specifically directed towards reducing surfactant residue, collapsing suds, neutralizing alkaline pH left over from the laundry detergent, etc. It is important to note that fabric conditioners and fabric softeners which do not have a suds suppression or collapsing function are not included in the scope of the rinsing compositions herein, as they would not provide the water and effort savings benefits critical to the laundering system herein. Thus the rinsing composition typically contains a suds suppressing system present at a level of from 0.01% to 15%, or from 0.1% to 5% by weight of the rinsing composition.
  • Suitable suds suppressing systems for use herein include any known antifoam compound, including silicone antifoam compounds and 2-alkyl alcanol antifoam compounds.
  • Useful silicone antifoam compounds are the siloxanes, particularly the polydimethylsiloxanes having trimethylsilyl end blocking units.
  • Other suitable antifoam compounds include the monocarboxylic fatty acids and soluble salts thereof, which are described in US Patent No. 2,954,347.
  • a preferred particulate suds suppressing system is described in EP Patent Publication No. 210 731 A and EP Patent Publication No. 210 721 A, both to Dow Corning. Examples of some non-limiting rinsing compositions useful herein are described in, for example, US Patent No.
  • the rinsing composition may further contain an anionic surfactant scavenger, such as a cationic or zwitterionic moiety which scavenges anionic surfactants from the fabric, the rinsing solution, etc.
  • an anionic surfactant scavenger such as a cationic or zwitterionic moiety which scavenges anionic surfactants from the fabric, the rinsing solution, etc.
  • Certain water-soluble cationic moieties such as cationic molecules, zwitterionic molecules, betaines, etc. may perform this function.
  • such an anionic surfactant scavenger may form a coacervate with the anionic surfactant in order to remove it from the fabric and/or rinse solution. See, for example, the cationic polymers detailed in U.S. Pat. No. 6,492,322 to Cooper, et al., granted on December 10, 2002.
  • the rinsing composition may also provide additional benefits, such as softening, fabric maintenance, perfume, etc.
  • the rinsing composition also provides a fabric conditioning benefit, such as softness.
  • the rinsing composition contains a fabric softening active, such as a silicone-based and/or quaternary ammonium-based softening active. Such compounds and formulas are well-known in the art.
  • the laundry detergent and/or rinsing composition herein may contain additional adjunct ingredients known in the art such as a builder, a chelant, a dye transfer inhibitor, a dye, a perfume, and a mixture thereof. In most cases, both the laundry detergent and the rinsing composition will contain one or more perfumes therein.
  • the laundry detergent will typically comprise at least about 1% builder, preferably from about 5%, more preferably from about 10% to about 80%, preferably to about 50%, more preferably to about 30% by weight, of detergent builder.
  • Builders include, but are not limited to, the alkali metal, ammonium and alkanolammonium salts of polyphosphates, alkali metal silicates, alkaline earth and alkali metal carbonates, aluminosilicate builders polycarboxylate compounds, ether hydroxypolycarboxylates, copolymers of maleic anhydride with ethylene or vinyl methyl ether, 1, 3, 5-trihydroxy benzene-2, 4, 6-trisulphonic acid, and c arboxymethyloxy succinic acid, the various alkali metal, ammonium and substituted ammonium salts of polyacetic acids such as ethylenediamine tetraacetic acid and nitrilotriacetic acid, as well as polycarboxylates such as mellitic acid,
  • the laundry detergent may contain a chelant therein as well.
  • the chelant controls the adverse effects of heavy metal contamination or water hardness (for example, calcium and magnesium ions) in an aqueous bath by binding with metal ions.
  • Any ligand with multidentate is suitable as a chelating agent.
  • suitable chelating agents can include, but are not limited to, carboxylates, phosphates, phosphonates, polyfunctionally-substituted aromatic compounds, polyamines, biodegradable compounds, the alkali metal, ammonium or substituted ammonium salts or complexes of these chelating agents, and mixtures thereof. Further examples of suitable chelating agents and levels of use are described in U.S. Pat. Nos.
  • the chelant typically is from about 0.01% to about 10%, or from about 0.1% to about 5% by weight of the laundry detergent.
  • Suitable polymeric dye transfer inhibiting agents include, but are not limited to, polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N- vinylpyrrolidone and N-vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
  • the dye transfer inhibiting agents are present at levels from about 0.0001% to about 10%, or about 0.01% to about 2% by weight.
  • the laundering detergent and the rinsing composition are sold together as a laundering kit.
  • the laundering kit contains a predetermined number of laundry detergent doses and a predetermined number of rinsing composition doses.
  • the predetermined number of laundry detergent doses often equals the predetermined number of rinsing composition doses, so as to promote system usage.
  • the predetermined number of laundry detergent doses may be greater than the predetermined number of rinsing composition doses, so as to wash, for example, highly soiled clothes.
  • the bacterial growth can easily be gauged by smelling the wash liquor and/or the fabrics after the soaking step.
  • the fabric and/or the wash liquor smells stinky (e.g., like a locker room, old sweaty socks, mold, or bad body odor) to the typical human nose, then there has been an increase in bacteria and thus the bacterial growth has not been retarded as the word is used herein.
  • stinky e.g., like a locker room, old sweaty socks, mold, or bad body odor
  • the bacterial growth has been retarded as the word is used herein. While this test may seem a bit subjective, it is actually pretty accurate and sufficient for a rough judgment.
  • More specific methods for measuring bacteria are of course known in the art and typically employ titers of bacteria and then growing the diluted bacteria on agar plates. While these take time and effort, they are standard in the art, and can be conducted in most high school or university biology laboratories. After incubation, colonies are counted, and extrapolated to estimate the total amount of bacteria in the sample and/or the system. In the present case, any such method is sufficient, as long as the agar supports the type of bacteria which produces malodor, and as long as the incubation time is at least 6 hours at 25 0 C.
  • the base bacteria count is the number of bacteria present on a fabric before the fabric is laundered. Initially, a base bacteria count is taken by directly sampling a contaminated fabric, such as, for example, a sweaty shirt, before it is added to the wash liquor. The sample should be taken from the most contaminated part, such as the armpit area. The bacteria sample is separated from the fabric by methods known in the art, and the total bacteria on the shirt is extrapolated and/or calculated. For such a measurement, it is assumed that the bacteria on other portions of the shirt is negligible in comparison to the portion from the armpit, and so for a rough measurement, such bacteria from other locations may be ignored. However, in cases where more exact measurements are required, known staining techniques can easily tell the concentrations and locations of bacteria on a shirt, and such a measurement can establish the base bacteria count.
  • the contaminated fabric may be "dosed" with a known number of bacteria from a known culture before laundering. In such a case, the amount of bacteria does should approximate what is found on actual laundry, and would represent the base bacteria count.
  • the wash liquor is sampled, titrated as needed, and the bacteria counted (with further incubation if necessary) to establish the incubated bacteria count, which is defined herein as the number of bacteria in the total volume of wash liquor after the fabric has been soaking in it for 6 hours at 25 0 C.
  • the laundry detergent should retard the growth of bacteria in the wash liquor so as to reduce or avoid malodor.
  • "retards bacterial growth” means that after 6 hours soaking at 25 0 C, the incubated bacteria count with the wash liquor of the present invention should be less than with a comparable system where the fabric is soaked in water (no laundry detergent) for the same amount of time and under the same conditions. Typically this is measured by smelling the fabric and the wash liquor as described above.
  • the incubated bacteria count in the wash liquor upon soaking for 6 hours at 25 0 C is less than or equal to 10 times the base bacteria count, or less than or equal to the base bacteria count.
  • the lowest possible incubated bacteria count is 0, or below the detection threshold, which would indicate substantially all the bacteria is killed in the wash liquor and therefore assumedly on the fabric.
  • the retarding of bacterial growth is evidenced by a lack of malodor, as detectable by the human nose.
  • the laundry detergent methods and use of the laundry detergent system are conducted at the typical dosages and/or dilutions recommended by the manufacturer.
  • the present innovation also includes a method of hand laundering a fabric by employing the laundering system described herein, adding water to a wash basin, dispersing the laundry detergent in a wash basin, adding a fabric to the wash basin, forming a wash liquor by combining the water and the laundry detergent, soaking the fabric in the wash liquor for a washing time period of from about 30 minutes to about 12 hours to form a soaked fabric, removing the soaked fabric from the wash liquor, removing wash liquor from the soaked fabric, dispersing the rinsing composition in water a rinse basin to form a rinse solution, adding the soaked fabric to the rinse solution, soaking the soaked fabric in the rinse solution for a rinsing time period of from about 1 minute to about 1 hour to form a rinsed fabric, removing the rinsed fabric from the rinse solution, removing rinse solution from the rinsed fabric, and drying the rinsed fabric.
  • laundry detergents herein are especially well-suited for use in a hand-washing context and in hard water conditions where the water hardness is between about 10 ppm to about 600 ppm; or from about 15 ppm to about 340 ppm; or from about 17 ppm to about 300 ppm, or from about 20 ppm to about 230 ppm of hard water ions such as Ca 2+ , Mg 2+ , etc., or such as Ca 2+ and/or Mg 2+ .
  • the laundry detergent is typically diluted with water by a factor of from about 1: 150 to about 1:1000, or about 1:200 to about 1:500 by weight, by placing the laundry detergent in a container along with wash water to form a wash liquor.
  • the rinsing composition is typically diluted from about 1 to about 10000 times, or from about 10 to about 5000, or from about 300 to about 600 times in a basin for hand-rinsing.
  • the wash and/or rinse basin is typically square, rectangular, oval or round and is wider than it is deep.
  • the water used to form the wash liquor and/or the rinse solution is typically whatever water is easily available, such as tap water, river water, well water, etc.
  • the temperature of the water may range from about 2 0 C to about 50 0 C, or from about 5 0 C to about 40 0 C, or from 10 0 C to 40 0 C, although higher temperatures may be used for soaking and/or pretreating.
  • the wash liquor and/or the rinse solution are removed from the soaked fabric by wringing.
  • the method further includes the step of agitating the rinse solution by, for example, dipping the fabric (i.e., raising the fabric out and then lowering it) into the rinse solution one or more times.
  • the fabric may be dipped into the wash solution as well - however, one skilled in the art realizes that such dipping does not constitute scrubbing the fabric in any way.
  • the fabric comprises a soil, and the soaked fabric is not scrubbed to remove the soil.
  • the fabric is added to the wash basin without any pre-wetting.
  • the fabric is substantially dry, without any purposely- added water thereupon, although it is recognized that some water or moisture may be present in the fabric from, for example sweat, soils, etc.
  • this is especially surprising and advantageous, as this ensures that the wash liquor, including the bactericide, is better absorbed into the fabric from the beginning. This may improve the ability of the surfactant to get to the soils, and remove them from the fabric during the soaking period.
  • the soaked fabric is not scrubbed to remove the soil thereby prolonging fabric life by reducing fabric abrasion.
  • the laundering system contains a laundering kit, wherein the laundering detergent and the rinsing composition are sold together, and the laundering kit comprises a predetermined number of laundry detergent doses and a predetermined number of rinsing composition doses.
  • the drying step comprises hanging the rinsed fabric, and typically the rinsed fabric will he hung on a clothesline outside, and often in the sunlight.
  • the washing time period is from about 1 hour to about 10 hours, or from about 2 hours to about 8 hours, or from about 4 hours to about 7 hours.
  • the wash liquor becomes clear during the washing time period. In such cases the dirt and other particulates may settle to the bottom of the wash basin as sediment.
  • the rinsing time period is from about 2 minutes to about 30 minutes, or from about 3 minutes to about 20 minutes, or from about 4 minutes to about 10 minutes.
  • the soaked fabric is soaked in the rinse solution once, and no additional rinsing step with water is conducted. Such a method maximizes the water savings herein.
  • the laundry detergent and/or the rinsing composition are independently in any known convenient form, such as a powder, a gel, a liquid, or a solid (i.e., a cube).
  • the laundry detergent is in a powdered and/or granular form, while the rinsing composition is in a liquid form.
  • a commercially-available laundry detergent (Ariel sold in the Philippines) containing 2.6% bleach (perborate + nonanoyloxybenzenesulphonate), 0.3% active enzyme (protease, cellulase mixture), and 21% LAS surfactant in addition to conventional builders, chelants, pH buffers, etc. is predissolved in a wash basin at a laundry detergent : water weight ratio of 1:250.
  • the room-temperature (about 25 0 C) water is added first, and then the laundry detergent is dispersed therein, with mild stirring by hand to disperse the laundry detergent and form a turbid wash liquor.
  • a typical load of laundry (about 5 kg of denim pants, t-shirts, underwear, etc.) were combined and added into the wash liquor, including a sweaty t-shirt from exercising. The wash liquor was left to soak overnight for 6 hours. While the denim pants and t-shirt are dipped in the wash liquor 2-3 times, no actual scrubbing is conducted.
  • a rinse solution is prepared by diluting with water a rinsing composition (Downy IBanlaw, commercially available in the Philippines) containing 0.3% silicone suds suppressor, 5% fabric softening active, and other conventional fabric softener ingredients. 33 mL of rinsing composition is added to 15 L of water to form the rinse solution. The wrung-out soaked fabrics are added to the rinse solution, dipped 2 times, and soaked for 5 minutes to form rinsed fabric. The rinsed fabric is then removed from the rinse solution and wrung out.
  • a rinsing composition Downy IBanlaw, commercially available in the Philippines
  • the fabrics smell clean and fresh with no noticeable malodor.
  • the rinsed fabrics are then hung up to dry on a conventional clothesline in the sunlight.
  • the fabrics show reduced abrasion, no detectable malodor, and are clean with all of the visible soils removed.
  • the person washing the fabrics has little or no washing-related skin abrasion on her hands.
  • a total of 2 basins of water are used - 1 for the wash liquor, and 1 for the rinse liquor.
  • Example 2 the process according to Example 1 is followed, except that a detergent composition (a granular detergent commercially-available in the Philippines) which contains surfactant, but lacks bleach is used at a similar concentration. After 6 hours of soaking in the wash liquor, an easily noticeable malodor is evident in the wash liquor and the fabrics. In addition, after soaking the denim pants are still dirty and require additional scrubbing to remove dirt.
  • a detergent composition a granular detergent commercially-available in the Philippines
  • a granular detergent commercially-available in the Philippines which contains surfactant, but lacks bleach is used at a similar concentration.
  • Example 1 The process according to Example 1 is followed, except that the fabrics are rinsed in regular water twice per the local custom, and a fabric conditioner is added in a 3 rd rinse. Due to the multiple rinsing steps, the fabrics must be wrung 2 more times than in Example 1. The fabrics have no detectable malodor, and are clean with all of the visible soils removed. A total of 4 basins of water are used - 1 for the wash liquor, and 3 for the rinsing steps.
EP09758962A 2008-06-06 2009-05-15 Handwaschverfahren für stoffe Withdrawn EP2285945A1 (de)

Applications Claiming Priority (2)

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PH22008000267 2008-06-06
PCT/US2009/044110 WO2009148801A1 (en) 2008-06-06 2009-05-15 Hand fabric laundering method

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130102537A (ko) * 2010-08-30 2013-09-17 노보자임스 에이/에스 두 번 불림 세탁
EP2611898A1 (de) * 2010-08-30 2013-07-10 Novozymes A/S Konzentriertes einweichwaschverfahren
CN102619057A (zh) * 2012-03-31 2012-08-01 太仓市隆丝达针织时装有限责任公司 一种真丝衣物的洗水方法
EP3613835A1 (de) 2018-08-24 2020-02-26 The Procter & Gamble Company Behandlungszusammensetzungen mit einem tensidsystem und einem oligoamin
EP3613834A1 (de) 2018-08-24 2020-02-26 The Procter & Gamble Company Behandlungszusammensetzungen mit geringen anteilen an einem oligoamin
EP3613837A1 (de) * 2018-08-24 2020-02-26 The Procter & Gamble Company Verfahren zur verminderung von schlechten gerüchen auf gewebe
CN109629270A (zh) * 2018-11-27 2019-04-16 纤化（上海）生物化工股份有限公司 一种用于牛仔织物水洗的皂洗酶及其制备工艺
EP3805346A1 (de) * 2019-10-08 2021-04-14 The Procter & Gamble Company Verfahren zum waschen von stoffen
CN110904667A (zh) * 2019-11-20 2020-03-24 利辛县雨果家居有限公司 一种编织工艺品表面污迹清理方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE271595T1 (de) * 1997-02-27 2004-08-15 Procter & Gamble Zusammensetzungen zum einweichen
EP1085079A1 (de) * 1999-09-20 2001-03-21 The Procter & Gamble Company Textilbehandlungsmittel
GB9929838D0 (en) * 1999-12-16 2000-02-09 Unilever Plc Process and composition for laundering of textile fabrics
US7026278B2 (en) * 2000-06-22 2006-04-11 The Procter & Gamble Company Rinse-added fabric treatment composition, kit containing such, and method of use therefor
JP2004525271A (ja) * 2001-03-07 2004-08-19 ザ プロクター アンド ギャンブル カンパニー 残留洗剤が存在する場合に使用する濯ぎ添加布帛コンディショニング組成物
GB0119710D0 (en) * 2001-08-13 2001-10-03 Unilever Plc Cleaning and rinsing of textile fabrics
CN100558872C (zh) * 2002-05-16 2009-11-11 宝洁公司 漂洗加入的织物处理组合物、包含该组合物的产品和方法及其使用
GB0329129D0 (en) * 2003-12-16 2004-01-21 Unilever Plc Laundry composition
WO2006040189A1 (en) * 2004-10-15 2006-04-20 Rhodia Chimie Composition comprising a hop extract benefit agent
GB0512423D0 (en) * 2005-06-17 2005-07-27 Unilever Plc Fabric conditioning composition and use

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009148801A1 *

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JP2011524473A (ja) 2011-09-01

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