EP0205999B1 - Produit pour enlever les saletés et les taches du linge - Google Patents

Produit pour enlever les saletés et les taches du linge Download PDF

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Publication number
EP0205999B1
EP0205999B1 EP86107435A EP86107435A EP0205999B1 EP 0205999 B1 EP0205999 B1 EP 0205999B1 EP 86107435 A EP86107435 A EP 86107435A EP 86107435 A EP86107435 A EP 86107435A EP 0205999 B1 EP0205999 B1 EP 0205999B1
Authority
EP
European Patent Office
Prior art keywords
composition
surfactant
enzyme
fabrics
laundry
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
Application number
EP86107435A
Other languages
German (de)
English (en)
Other versions
EP0205999A3 (en
EP0205999A2 (fr
Inventor
John Stephen Sabol, Jr.
Wayne Albert Kester
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.)
Reckitt Benckiser LLC
Original Assignee
DowBrands Inc
Dow Consumer Products Inc
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 DowBrands Inc, Dow Consumer Products Inc filed Critical DowBrands Inc
Publication of EP0205999A2 publication Critical patent/EP0205999A2/fr
Publication of EP0205999A3 publication Critical patent/EP0205999A3/en
Application granted granted Critical
Publication of EP0205999B1 publication Critical patent/EP0205999B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • C11D3/38609—Protease or amylase in solid compositions only
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0052—Cast detergent compositions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S424/00—Drug, bio-affecting and body treating compositions
    • Y10S424/05—Stick

Definitions

  • the present invention relates to a solid type fabric-cleaning product which finds utility as a pre-applied spotting agent used prior to a laundering procedure so as to facilitate the removal of stains and soil from selected pre-treated areas of the fabric. More particularly, the invention is directed to a laundry soil and stain removing composition which includes, in combination, surfactants, laundry enzymes, and a carrier material so as to provide a solid medium that can be applied conveniently to a fabric as an aid in laundering.
  • the composition includes a chemical agent for regulating and for selectively, independently modifying physical and chemical parameters of the product to enhance its functional features and its effectiveness in use.
  • compositions finding utility as pre-spotting preparations have long been utilized in the laundering and cleaning field. Such preparations have been applied to particular, selected stained or excessively soiled areas of clothing and other fabrics prior to subjecting the pre-treated material to a laundering operation. It has been established that effective pre-treatment of the type described increases the likelihood of removing the soils and stains effectively.
  • pre-treatment preparations dry products which have ordinarily been used in conjunction with water to provide a solution in which the fabric to be cleaned is subjected to a pre-soaking step.
  • Other prior products include formulations packaged for spraying from aerosol type dispensers or from bottles fitted with pump mechanisms.
  • Still other specialized preparations constitute preparations which are applied, as liquid pre-spotters, directly to the area to be treated.
  • laundry enzymes of the type which have been demonstrated to act effectively to enhance the removal of foreign material including oil and grease stains and other stains and soil from fabrics.
  • the enzyme systems employed are critically sensitive to the pH of the system into which they are introduced. This fact has interfered with and impaired their use in laundry preparations.
  • Aerosol type pre-spotting preparations are costly and suffer the disadvantages inherent in all aerosol type products.
  • US-A- 3,953,353 discloses a solid product for rub-on applications to stains and soil deposits on fabric. This product contains exclusively nonionic surfactants.
  • US-A- 3,798,181 describes an enzymatic detergent bar using as carrier material salt in a very high proportion. This product has a high density.
  • This invention provides a laundry soil and stain remover composition in applicator stick form for application to fabric as an aid in laundering, said composition comprising a laundry enzyme to eliminate grease and oil stains from fabrics, a surfactant, and a bodying agent constituting a gelling carrier vehicle for said enzyme and said surfactant, said enzyme and said surfactant being intimately and uniformly dispersed throughout said carrier to provide a physically self-sustained solid for direct positive application and material transfer to selected zones of fabrics to be treated, prior to subjecting the fabrics to a laundering cycle, characterised by containing an inorganic or organic salt or a mixture thereof added to said bodying agent, said composition having a dropping point in the range of from 37.8°C to 82.2°C, a hardness in the range of from 3 to 30 mm measured using an ASTM standard needle with no weight added, and a melting point in the range of from 40°C to 80°C.
  • compositions of the invention include, in combination, a surfactant, and in preferred embodiments, a surfactant system containing both nonionic and anionic surfactants, one or more laundry enzymes, a bodying agent in which the enzymes and the surfactant are homogeneously distributed, and a chemical agent for selectively and independently modifying the value of one or more physical and chemical parameters of the composition to enhance its operation.
  • a surfactant and in preferred embodiments, a surfactant system containing both nonionic and anionic surfactants, one or more laundry enzymes, a bodying agent in which the enzymes and the surfactant are homogeneously distributed, and a chemical agent for selectively and independently modifying the value of one or more physical and chemical parameters of the composition to enhance its operation.
  • Still another very important feature of the invention is the incorporation of a salt into the composition, effectively and selectively to modify a given parameter of the product so as to improve both its physical and its chemical properties and to render the preparation more useful in its intended applications.
  • the salts used according to the invention include preferably at least one chloride, sulfate, carbonate, phosphate, bromide, formate, acetate, tartrate, borate or metaborate, as anions, and sodium, potassium, calcium, lithium, magnesium and aluminum as cations, or mixtures thereof.
  • Preferred surfactants include according to the invention a linear alkyl benzenesulfonate, especially sodium dodecylbenzenesulfonate.
  • the surfactant includes linear alcohol ethoxylates, alkylphenol ethoxylates and polyethylene glycols and the surfacant comprises sodium stearate.
  • a feature of the invention is the discovery that there are critical relationships between the several distinct components of the compositions of the invention and that the concentrations of the components significantly affect the rheology and other properties, including the "dropping point" of the product.
  • the method of preparing the compositions of the invention includes the step of forming sodium stearate, in-situ, one benefit of this procedure being a significantly reduced cost for raw materials.
  • formulations of the invention may be applied as much as several days before subjecting the treated fabric to laundering, with no adverse effects. (The requirement in prior art products that the fabrics so treated must be subjected to washing immediately and the applied pre-spotter not be allowed to dry, has been removed).
  • the physical properties including the hardness of the final product are effectively controlled by adding a salt to the matrix to control the consistency of the product as well as to maintain the dropping point above 37.8°C, preferably from 48.9°C to 65.6°C.
  • a salt to control the consistency of the product as well as to maintain the dropping point above 37.8°C, preferably from 48.9°C to 65.6°C.
  • the formulations of the present invention have the requisite physical strength in combination with the property of being soft enough to be transferred mechanically to the areas to be treated, so that the product may be readily handled and used conveniently, and effectively, and, at the same time, maintaining a physically stable form at the elevated temperatures to which such products are exposed during shipment and storage.
  • Figure 1 is a graphic representation illustrating the inter-relationship between various parameters, including drop point, pH and hardness, of the compositions of the invention.
  • the aims of the present invention are achieved by formulating a highly effective and versatile cleaning concentrate in the form of a readily manipulable stick-like probe or applicator which includes, in combination, inorganic and organic salts, an enzyme system, a surfactant, the salts, enzymes, and the surfactant being uniformly and homogeneously distributed throughout a supporting matrix or carrier to provide a relatively soft but readily handled rod facilitating the direct application of the composition to selected areas of fabric to be treated.
  • the physical consistency, hardness, softening temperature and the general rheology of the matrix of the product are controlled and adjusted through the addition of the salt or salts.
  • compositions of the invention exhibit the requisite values of parameters including adequate rigidity, strength, hardness and temperature sensitivity and stability as well as requisite physical transferability, upon abrasive contact, to the fabric to which the composition is to be applied. Additionally, chemical properties, including the pH, are controlled to ensure an environment in which the enzymes present in the product can perform effectively.
  • the present invention invokes a unique combination of a system of laundry enzymes in conjunction with, preferably, two or more different types of detergents which augment and supplement one another, all contained as intimately and homogeneously dispersed elements in a carrier medium which includes added salt or salts to provide control over those physical properties and characteristics which ensure stability in shipment and storage and which also make it easy to handle the product physically and to apply the composition of the invention to selected areas which have been delineated for pre-treatment in advance of a laundering operation.
  • Preferred formulations of the laundry soil and stain remover products of the invention include, as fluid components or solvents in the matrix system, propylene glycol and dipropylene glycol and mixtures of the two.
  • the relative ratio and concentrations of the glycols may be selected to alter and define the rheology of the matrix.
  • the dimer produces a harder matrix than does propylene glycol, and the trimer, even harder products.
  • the glycols can be blended to produce products with desired rheological properties.
  • salts particularly borate and formate salts (e.g., sodium borate decahydrate) were added for the purpose of enhancing enzyme stability.
  • borate and formate salts e.g., sodium borate decahydrate
  • these salts and other organic and inorganic salts could be used to control the consistency of the matrix of the product.
  • the value of important parameters, for example, temperature sensitivity, of the products could also be varied and controlled.
  • the added salt components could be used effectively to control the pH in the formulated product.
  • the addition of the salts is effective not only to raise the drop point and decrease the hardness of the product, but also to increase the hardness, and raise the drop point temperature without raising the pH significantly.
  • the final product is often translucent to opaque. Accordingly, there may be some difficulty seeing where the product has been applied.
  • the color of the product may also be undesirable or may not be consistent with the color one expects for a laundry product.
  • traditional coloring agents include titanium dioxide, pearlescent agents of the type traditionally used in the cosmetic and soap industry, various organic dyes of the type commonly used in laundry and detergent products, and other coloring and opacifying agents that would impart a color to the product, but which would not dye or discolor the fabric.
  • Figure 1 depicts schematically the variations and dependency as well as the inter-relationship between drop point, pH and penetrometer reading as a function of alkali concentration.
  • Example 1 As the graph of Figure 1 indicates, the formulation of Example 1 and other typical sodium stearate formulations will have very unique properties.
  • the pH, hardness, and drop point are all inter-related and are unique for each given formulation.
  • the drop point of traditional stearate formulations cannot be changed without affecting the other two characteristics.
  • the present invention provides formulations and a method by which one can change the drop point, for example, and not affect one or both of the other two properties, that is, hardness and pH.
  • the unique utility of the invention is evident upon a consideration of the following additional examples provided for illustrative purposes.
  • Example 1 The addition of 1 percent sodium chloride to the composition of Example 1 gives a drop point of 54.4°C, a pH of 9.35, and a penetrometer reading of 50.
  • the "comparable" sodium stearate formulation (Example 1) has a drop point of 50.8°C, a pH of 9.36, and a penetrometer reading of 54.
  • Example 2 In the salt-modified Example 2 formulation, the drop point has been raised without significantly changing the other characteristics or the values of other input and parameters.
  • a sodium stearate formulation with a drop point of 54.4°C would have a pH of 10 and a penetrometer reading of 35.
  • This formulation would be difficult to rub onto the fabric due to its hardness and the pH would be above the optimum for an enzyme, which is generally recognized as being a pH of no higher than 9.5.
  • the graph of Figure 1 indicates that the pH of this formulation would be 9.35 and the drop point would be 45°C.
  • the pH of this formulation is within the optimum range for an enzyme, but the dropping point is below the preferred minimum of 48.9°C.
  • FIG. 1 Another example of the utility of this invention is illustrated with a formulation that would be harder than the formulation illustrated in the previous two examples. If one desires a stick with a penetrometer reading of 38, the graph and Figure 1 indicates that the stearate formulation with that hardness would have a pH of 9.9 and a drop point of 50.6°C. In this example, the dropping point is above the target of 48.9°C, but the pH is above the optimum of 9.5. The addition of 3 percent sodium acetate would give a stick with the desired hardness and pH.
  • Detergent builders can be added to the pre-spotter stick formulations.
  • a general class of builders or chelants known as polyaminocarboxylic acids are useful for this function. Examples include sodium nitrilotriacetic acid and hydroxyethyldiaminotriacetic acid. Citric acid and its salts as well as polyacrylic acids can also be utilized for this purpose.
  • the builder is included in the formulations in concentrations from 0.01 to 10 percent.
  • the products of the invention are waxy, greasy, translucent to opaque solids with a dropping point of 37.8°C to 82.2°C.
  • salts include the salts of both organic and inorganic acids. Examples are chloride, sulfate, carbonate, phosphate, bromide, formate, acetate, tartrate, borate, and metaborate as the anions, with the cations being sodium, potassium, calcium, lithium, magnesium, and aluminum. This list is meant to be representative and not to exclude other known salts.
  • the surfactants include anionics, in particular, linear alkylbenzene sulfonates, for example, sodium dodecylbenzenesulfonate. These anionic surfactants function more effectively than do the non-ionics in removing soil and stain from cotton fabrics.
  • Preferred non-ionic surfactants include ethoxylated linear alcohols, ethoxylated alkylphenols (preferably C6-C12 alkylphenols), and polyethylene glycols.
  • surfactants may be substituted in the compositions.
  • surfactants of the non-ionic type include ethoxylated linear alcohols, ethoxylated alkylphenols, and polyethylene glycols.
  • Propylene glycol including the mono, di, and tri analogs, may be used.
  • Various types of stearic acids including single, double and triple pressed stearic acid are suitable.
  • the enzymes used include protease, lipase and amylase, in a stabilized blend, or as unstabilized preparations with calcium salts added for stabilization.
  • test preparations EMPA-116 (blood, milk, ink), EMPA-112 (cocoa, milk, sugar), and grass soils, on cotton.
  • EMPA-116 blood, milk, ink
  • EMPA-112 cocoa, milk, sugar
  • grass soils on cotton.
  • the swatches were washed in 150 ppm hardness water at 37.8°C, with 100 cycles per minute agitation, and 1.5 g/l non-phosphate powdered commercial detergent (e.g., Tide®).
  • test swatches were then read on a Hunter Reflectometer, using the L scale, where L is an indication of lightness-darkness.
  • the present invention constitutes formulation and methods of controlling the consistency of the solid formulation and the dropping point in spotting sticks.
  • Current art teaches that there is a direct relationship between the dropping point and the hardness of the formulation. That is to say that if one raises the dropping point, the hardness increases.
  • the present invention discloses a technique for raising the dropping point and simultaneously decreasing the hardness of the formulation, an effect which is contrary to what is normally observed in sodium stearate formulations. Conc.
  • the two surfactants and the glycols are heated to 65.6°C with stirring, until solution takes place.
  • the polyethylene glycol is added next, followed by a water solution containing the sodium borate.
  • the sodium hydroxide and sulfonic acid are added.
  • the stearic acid When the stearic acid has dissolved, the temperature is lowered to approximately, 54.4°C, and the enzyme is added with stirring.
  • the resulting formulation is poured into the appropriate mold-like containers or formers.
  • Products produced in accordance with the invention are characterized by an ASTM penetrometer hardness of 3 to 30 mm using the standard cone with no additional weight added.

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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)
  • Detergent Compositions (AREA)

Claims (10)

  1. Composition pour enlever les salissures et les taches sur le linge à laver, sous forme d'un bâton applicateur pour application sur le tissu pour aider le lavage, ladite composition comportant une enzyme pour linge à laver pour éliminer des tissus les taches de graisse et d'huile, un agent tensio-actif et un agent donnant du corps, constituant un support gélifiant pour ladite enzyme et ledit agent tensio-actif, ladite enzyme et ledit agent tensio-actif étant intimement et uniformément dispersés dans tout ledit support pour donner un solide physiquement auto-portant pour permettre une application positive directe et un transfert du matériau sur des zones sélectionnées des tissus à traiter, avant de soumettre les tissus au cycle de lavage, composition caractérisée par le fait qu'elle contient, ajouté à ladite composition, un sel minéral ou organique, ou un mélange de ces sels, la composition présentant un point de goutte situé sur la plage allant de 37,8°C à 82,2°C, une dureté située sur la plage allant de 3 à 30 mm mesurée en utilisant une aiguille standard ASTM sans poids ajouté, et un point de fusion situé sur la plage allant de 40°C à 80°C.
  2. Composition de la revendication 1, caractérisée par le fait que les sels incluent au moins un chlorure, un sulfate, un carbonate, un phosphate, un bromure, un formiate un acétate, un tartrate, un borate ou un métaborate comme anions et du sodium, du potassium, du calcium, du lithium, du magnésium et de l'aluminium comme cations, ou des mélanges de ces sels.
  3. Composition de la revendication 1 ou 2, caractérisée par le fait que le support comporte du stéarate de sodium préparé in situ dans la composition.
  4. Composition de l'une quelconque des revendications 1 à 3, caractérisée par le fait que le point de goutte va de 48,9°C à 65,6°C.
  5. Composition de la revendication 2, caractérisée par le fait que ledit sel est le borate de sodium décahydraté.
  6. Composition de la revendication 1, caractérisée par le fait que ledit agent tensio-actif est un mélange d'agents tension-actifs anioniques et non-ioniques.
  7. Composition de la revendication 1, caractérisée par le fait que l'agent tensio-actif comporte un alcoylbenzènesulfonate linéaire.
  8. Composition de la revendication 1, caractérisée par le fait que l'agent tensio-actif comporte du dodécylbenzenesulfonate de sodium.
  9. Composition de la revendication 1, caractérisée par le fait que l'agent tensio-actif comporte des alcools linéaires éthoxylés, des alcoylphénols éthoxylés et des polyéthylèneglycols, tandis que ledit vecteur comporte du stéarate de sodium.
  10. Composition de l'une quelconque des revendications précédentes, caractérisée par le fait que la composition comporte un agent détergent donnant du corps, choisi parmi les acides polyaminocarboxyliques, dans une proportion allant de 0,01 à 10 pour-cent en poids.
EP86107435A 1985-06-07 1986-06-02 Produit pour enlever les saletés et les taches du linge Expired - Lifetime EP0205999B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US74262785A 1985-06-07 1985-06-07
US742627 1985-06-07
US85185786A 1986-04-14 1986-04-14
US851857 1986-04-14

Publications (3)

Publication Number Publication Date
EP0205999A2 EP0205999A2 (fr) 1986-12-30
EP0205999A3 EP0205999A3 (en) 1988-07-06
EP0205999B1 true EP0205999B1 (fr) 1992-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107435A Expired - Lifetime EP0205999B1 (fr) 1985-06-07 1986-06-02 Produit pour enlever les saletés et les taches du linge

Country Status (6)

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EP (1) EP0205999B1 (fr)
AU (1) AU594058B2 (fr)
CA (1) CA1283613C (fr)
DE (1) DE3684180D1 (fr)
HK (1) HK22493A (fr)
SG (1) SG124892G (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846332B2 (en) 2000-06-19 2005-01-25 The Procter & Gamble Company Bleach stabilizer for stain removal pen

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318470A3 (fr) * 1987-07-08 1991-01-30 Warwick International Group Plc Composition de blanchissage et procédé pour son obtention
GB8716065D0 (en) * 1987-07-08 1987-08-12 Warwick International Ltd Laundry composition
EP0312278A3 (fr) * 1987-10-12 1990-07-11 Unilever Plc Composition détergente
DE19750385A1 (de) * 1997-11-13 1999-05-20 Uhu Gmbh Reinigungszusammensetzung auf der Basis einer Waschpaste
EP1069180A1 (fr) 1999-07-12 2001-01-17 The Procter & Gamble Company Appareil pour le traitement de tissu
EP1069179A1 (fr) * 1999-07-12 2001-01-17 The Procter & Gamble Company Procédé d'enlèvement de tâches
EP1078980A1 (fr) 1999-07-12 2001-02-28 The Procter & Gamble Company Procédé de détachage de vêtements portés sur le corps
EP1068835A1 (fr) 1999-07-12 2001-01-17 The Procter & Gamble Company Crayon pour enlever les taches ayant un dispositif d'application optimisé
GB0003925D0 (en) 1999-10-25 2000-04-12 Unilever Plc Cast detergent composition
DE102007031096A1 (de) * 2007-07-04 2009-01-08 Glienke, Peter O. Abreibbares und abschmelzendes Reinigungsmittel
US20120324655A1 (en) 2011-06-23 2012-12-27 Nalini Chawla Product for pre-treatment and laundering of stained fabric
CN109096822A (zh) * 2017-06-20 2018-12-28 天津元贞印刷技术有限公司 无闪燃油墨清洗剂

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798181A (en) * 1970-11-03 1974-03-19 Colgate Palmolive Co Enzymatic detergent bar
US3953353A (en) * 1974-11-08 1976-04-27 Purex Corporation Laundering pre-spotter and method of production
DK263584D0 (da) * 1984-05-29 1984-05-29 Novo Industri As Enzymholdige granulater anvendt som detergentadditiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846332B2 (en) 2000-06-19 2005-01-25 The Procter & Gamble Company Bleach stabilizer for stain removal pen

Also Published As

Publication number Publication date
DE3684180D1 (de) 1992-04-16
HK22493A (en) 1993-03-19
EP0205999A3 (en) 1988-07-06
SG124892G (en) 1993-03-12
AU5837486A (en) 1986-12-11
CA1283613C (fr) 1991-04-30
EP0205999A2 (fr) 1986-12-30
AU594058B2 (en) 1990-03-01

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