EP2376340A1 - Système de dosage mesuré anti-pulvérisation pour liquides de lessive à réduction de cisaillement visqueux - Google Patents

Système de dosage mesuré anti-pulvérisation pour liquides de lessive à réduction de cisaillement visqueux

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Publication number
EP2376340A1
EP2376340A1 EP09763976A EP09763976A EP2376340A1 EP 2376340 A1 EP2376340 A1 EP 2376340A1 EP 09763976 A EP09763976 A EP 09763976A EP 09763976 A EP09763976 A EP 09763976A EP 2376340 A1 EP2376340 A1 EP 2376340A1
Authority
EP
European Patent Office
Prior art keywords
spout
apertures
squeeze
composition
deflector cap
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Withdrawn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
EP09763976A
Other languages
German (de)
English (en)
Inventor
Paul Anthony Anderson
Glen Williams
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP09763976A priority Critical patent/EP2376340A1/fr
Publication of EP2376340A1 publication Critical patent/EP2376340A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
    • G01F11/286—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement where filling of the measuring chamber is effected by squeezing a supply container that is in fluid connection with the measuring chamber and excess fluid is sucked back from the measuring chamber during relaxation of the supply container

Definitions

  • the present invention relates to a measured-dosing system for laundry fluids.
  • US2730270 discloses a capped squeeze bottle and liquid measuring and dispensing device attached thereto.
  • a dip tube connects an outlet in the top of the cap with a measuring region above. The bottle is squeezed to force liquid up the dip tube and into the liquid measuring region. The bottle is inverted to dispense the measured amount of liquid.
  • the object of the present invention is to provide an improved measured-dosing system for laundry fluids.
  • the invention provides a squeeze-operated container comprising a storage chamber containing a laundry fluid composition which is shear thinning and has a viscosity of at least 100 Pa. s when in rest or up to a shear stress of 10 Pa; and a measuring chamber, the measuring chamber comprising a base from which upwardly extends a dispensing spout in fluid communication with the storage chamber; and a pour spout, wherein the storage container is squeezable to force the laundry fluid composition into the measuring chamber and the dispensing spout comprises a deflector cap on the top of the dispensing spout and one or more lateral apertures the spout such that the viscous laundry fluid exits the spout laterally and downwardly, and characterised in that the or each of the apertures comprise annular sections of at least 60° and that the deflector cap extends radially outward of the apertures.
  • the apertures are laterally located.
  • the deflector cap prevents or reduces vertical spray of the laundry fluid composition which can be occasioned by excessive force applied to the storage chamber.
  • This is especially advantageous with viscous shear thinning laundry liquids, where the dispensing apertures need to be large but, due to the thinning action on pressure application the risk exists of a large amount of liquid lost by inadvertent spraying when excessive pressure is applied, this is a particular problem in the case when the consumer is rushing to complete such chores as laundering.
  • the deflector cap skirt extends as a canopy over the or each aperture to deflect more effectively any inadvertent vertical directed spray.
  • the deflector cap may comprise a plate attached to the top of the spout, and may be attached by one or more depending arms such that there are multiple dispensing apertures, divided by said arm or arms.
  • each dispensing aperture is/are all located in a 180° region of the dispensing spout, and this region is aligned with the position of the pour spout. This offers the advantage of squeezing and pouring simultaneously so liquid is squeezed from the dispensing apertures toward the pour spout.
  • the deflector cap comprises a depending skirt extending at least partially around the circumference of the plate so that the lateral aperture or apertures are spaced apart from the top of the spout.
  • the measuring chamber may be integral with storage container or may be a separate device which may attached e.g. by a screw-fit or snap-fit attachment.
  • the measuring chamber may be part of a closure device for the container.
  • the laundry fluid composition is may be a liquid or gel but is preferably a shear thinning e.g gel-type composition and the viscosity under shear stress is preferably less than 300 Pa. s, more preferably less than 100 Pa. s and even more preferably less than 5 Pa. s, even more preferably it is at most 1 Pa. s and most preferably it is at most 0.5 Pa. s.
  • Shear thinning compositions may comprise a polymer gum, e.g. Xanthan gum or other gum capable of forming stable continuous gum networks which can suspend particles.
  • external structurants e.g. hydrogenated castor oil, micro crystalline cellulose may be used.
  • compositions may comprise a soap or fatty acid in combination with sodium sulphate and one or more surfactants may be used to form a gelled structure by the formation of lamellar phases.
  • the composition may comprise a lamellar phase dispersion from a micellar surfactant system, and additionally a structurant for establishing the lamellar phase, whereby said structurant may be a fatty alcohol.
  • the composition of the invention contains one or more surface active agents (surfactants) selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic surfactants or mixtures thereof.
  • surfactants selected from the group consisting of anionic, nonionic, cationic, ampholytic and zwitterionic surfactants or mixtures thereof.
  • the preferred surfactant detergents for use in the present invention are mixtures of anionic and nonionic surfactants although it is to be understood that any surfactant may be used alone or in combination with any other surfactant or surfactants.
  • the surfactant should comprise at least 10% by wt. of the composition, e.g., 1 1% to 85%, preferably at least 15% to 70% of the total composition, more preferably 16% to 65%; even more preferably 20% to 65%.
  • composition may comprise nonionic synthetic organic detergents alone or in combination with other surfactants.
  • Nonionic detergents are characterized by the presence of an organic hydrophobic group and an organic hydrophilic group and are typically produced by the condensation of an organic aliphatic or alkyl aromatic hydrophobic compound with ethylene oxide (hydrophilic in nature).
  • Typical suitable nonionic surfactants are those disclosed in U.S. Pat. Nos. 4,316,812 and 3,630,929.
  • the nonionic detergents are polyalkoxylated lipophiles wherein the desired hydrophile-lipophile balance is obtained from addition of a hydrophilic poly-lower alkoxy group to a lipophilic moiety.
  • a preferred class of nonionic detergent is the alkoxylated alkanols wherein the alkanol is of 9 to 18 carbon atoms and wherein the number of moles of alkylene oxide (of 2 or 3 carbon atoms) is from 3 to 12. Of such materials it is preferred to employ those wherein the alkanol is a fatty alcohol of 9 to 1 1 or 12 to 15 carbon atoms and which contain from 5 to 8 or 5 to 9 alkoxy groups per mole.
  • Neodol TM25-7 exemplary of such compounds are those wherein the alkanol is of 12 to 15 carbon atoms and which contain about 7 ethylene oxide groups per mole, e.g. Neodol TM25-7 and
  • Neodol TM23-6.5 which products are made by Shell Chemical Company, Inc.
  • the former is a condensation product of a mixture of higher fatty alcohols averaging about 12 to 15 carbon atoms, with about 7 moles of ethylene oxide and the latter is a corresponding mixture wherein the carbon atoms content of the higher fatty alcohol is 12 to 13 and the number of ethylene oxide groups present averages about 6.5.
  • the higher alcohols are primary alkanols.
  • Nonionics are represented the class of nonionics sold under the trademark Plurafac.
  • the Plurafacs are the reaction products of a higher linear alcohol and a mixture of ethylene and propylene oxides, containing a mixed chain of ethylene oxide and propylene oxide, terminated by a hydroxyl group. Examples include Ci 3 -Ci 5 fatty alcohol condensed with 6 moles ethylene oxide and 3 moles propylene oxide, Ci 3 -Ci 5 fatty alcohol condensed with 7 moles propylene oxide and 4 moles ethylene oxide, Ci 3 -Ci 5 fatty alcohol condensed with 5 moles propylene oxide and 10 moles ethylene oxide, or mixtures of any of the above.
  • Dobanol 91-5 is an ethoxylated Cg-Cn fatty alcohol with an average of 5 moles ethylene oxide
  • Dobanol 23-7 is an ethoxylated Ci 2 -Ci 5 fatty alcohol with an average of 7 moles ethylene oxide per mole of fatty alcohol.
  • preferred nonionic surfactants include the Ci 2 -Ci 5 primary fatty alcohols with relatively narrow contents of ethylene oxide in the range of from about 7 to 9 moles, and the Cg to Cu fatty alcohols ethoxylated with about 5-6 moles ethylene oxide.
  • glycoside surfactants Another class of nonionic surfactants which can be used in accordance with this invention are glycoside surfactants.
  • Glycoside surfactants suitable for use in accordance with the present invention include those of the formula:
  • R is a monovalent organic radical containing from 6 to 30 (preferably from 8 to 18) carbon atoms
  • R' is a divalent hydrocarbon radical containing from about 2 to 4 carbons atoms
  • O is an oxygen atom
  • y is a number which can have an average value of from 0 to about 12 but which is most preferably zero
  • Z is a moiety derived from a reducing saccharide containing 5 or 6 carbon atoms
  • x is a number having an average value of from 1 to about 10 (preferably from 1.5 to 10).
  • a particularly preferred group of glycoside surfactants for use in the practice of this invention includes those of the formula above in which R is a monovalent organic radical (linear or branched) containing from 6 to 18 (especially from about 8 to about 18) carbon atoms; y is zero; z is glucose or a moiety derived therefrom; x is a number having an average value of from 1 to about 4 (preferably from about 1 to 4).
  • Nonionic surfactants particularly useful for this application include, but are not limited to: alcohol ethoxylates (e.g. Neodol 25-9 from Shell Chemical Co.), alkyl phenol ethoxylates (e.g. Tergitol NP-9 from Union Carbide Corp.), alkylpolyglucosides (e.g. GlucaponTM 600CS from Henkel Corp.), polyoxyethylenated polyoxypropylene glycols (e.g.
  • PluronicTML-65 from BASF Corp.
  • sorbitol esters e.g. EmsorbTM 2515 from Henkel Corp.
  • polyoxyethylenated sorbitol esters e.g. EmsorbTM 6900 from Henkel Corp.
  • alkanolamides e.g. AlkamideTM DC212/SE from Rhone-Poulenc Co.
  • N- alkypyrrolidones e.g. SurfadoneTMLP-100 from ISP Technologies Inc.
  • Nonionic surfactant is used in the formulation from about 0% to about 70%, preferably between 5% and 50%, more preferably 10-40% by weight. Mixtures of two or more of the nonionic surfactants can be used.
  • the composition may comprise anionic surface active agents and preferably are those surface active compounds which contain a long chain hydrocarbon hydrophobic group in their molecular structure and a hydrophilic group, i.e.; water solubilizing group such as sulfonate or sulfate group.
  • the anionic surface active agents include the alkali metal (e.g. sodium and potassium) water soluble higher alkyl benzene sulfonates, alkyl sulfonates, alkyl sulfates and the alkyl polyether sulfates. They may also include fatty acid or fatty acid soaps.
  • the preferred anionic surface active agents are the alkali metal, ammonium or alkanolamide salts of higher alkyl benzene sulfonates and alkali metal, ammonium or alkanolamide salts of higher alkyl sulfonates.
  • Preferred higher alkyl sulfonates are those in which the alkyl groups contain 8 to 26 carbon atoms, preferably 12 to 22 carbon atoms and more preferably 14 to I8 carbon atoms.
  • the alkyl group in the alkyl benzene sulfonate preferably contains 8 to 16 carbon atoms and more preferably 10 to 15 carbon atoms.
  • a particularly preferred alkyl benzene sulfonate is the sodium or potassium dodecyl benzene sulfonate, e.g. sodium linear dodecyl benzene sulfonate.
  • the primary and secondary alkyl sulfonates can be made by reacting long chain alpha-olefins with sulfites or bisulfites, e.g. sodium bisulfite.
  • the alkyl sulfonates can also be made by reacting long chain normal paraffin hydrocarbons with sulfur dioxide and oxygen as described in U.S. Pat. Nos. 2,503,280, 2,507,088, 3,372,188 and 3,260,741 to obtain normal or secondary higher alkyl sulfonates suitable for use as surfactant detergents.
  • the alkyl substituent is preferably linear, i.e. normal alkyl, however, branched chain alkyl sulfonates can be employed, although they are not as good with respect to biodegradability.
  • the alkane, i.e. alkyl, substituent may be terminally sulfonated or may be joined, for example, to the carbon atom of the chain, i.e. may be a secondary sulfonate. It is understood in the art that the substituent may be joined to any carbon on the alkyl chain.
  • the higher alkyl sulfonates can be used as the alkali metal salts, such as sodium and potassium.
  • the preferred salts are the sodium salts.
  • the preferred alkyl sulfonates are the Cio to Cis primary normal alkyl sodium and potassium sulfonates, with the Cio to Cis primary normal alkyl sulfonate salt being more preferred.
  • the alkali metal alkyl benzene sulfonate can be used in an amount of 0 to 70%, preferably 10 to 50% and more preferably 10 to 20% by weight.
  • the alkali metal sulfonate can be used in admixture with the alkylbenzene sulfonate in an amount of 0 to 70%, preferably 10 to 50% by weight.
  • normal alkyl and branched chain alkyl sulfates e.g., primary alkyl sulfates
  • anionic component e.g., sodium alkyl sulfates
  • the higher alkyl polyether sulfates used in accordance with the present invention can be normal or branched chain alkyl and contain lower alkoxy groups which can contain two or three carbon atoms.
  • the normal higher alkyl polyether sulfates are preferred in that they have a higher degree of biodegradability than the branched chain alkyl and the lower poly alkoxy groups are preferably ethoxy groups.
  • R' is C 8 to C 2 o alkyl, preferably Cio to Ci 8 and more preferably Ci 2 to Ci 5 ;
  • P is 2 to 8, preferably 2 to 6, and more preferably 2 to 4; and
  • M is an alkali metal, such as sodium and potassium, or an ammonium cation.
  • the sodium and potassium salts are preferred.
  • a preferred higher alkyl poly ethoxylated sulfate is the sodium salt of a triethoxy Ci 2 to Ci 5 alcohol sulfate having the formula:
  • suitable alkyl ethoxy sulfates that can be used in accordance with the present invention are C 12 - 1 5 normal or primary alkyl triethoxy sulfate, sodium salt; n-decyl diethoxy sulfate, sodium salt; C 12 primary alkyl diethoxy sulfate, ammonium salt; C 12 primary alkyl triethoxy sulfate, sodium salt: Ci 5 primary alkyl tetraethoxy sulfate, sodium salt, mixed C- H-I5 normal primary alkyl mixed tri- and tetraethoxy sulfate, sodium salt; stearyl pentaethoxy sulfate, sodium salt; and mixed C 1 0- 1 8 normal primary alkyl triethoxy sulfate, potassium salt.
  • the normal alkyl ethoxy sulfates are readily biodegradable and are preferred.
  • the alkyl poly-lower alkoxy sulfates can be used in mixtures with each other and/or in mixtures with the above discussed higher alkyl benzene, alkyl sulfonates, or alkyl sulfates.
  • the alkali metal higher alkyl poly ethoxy sulfate can be used with the alkylbenzene sulfonate and/or with an alkyl sulfonate or sulfonate, in an amount of 0 to 70%, preferably 10 to 50% and more preferably 10 to 20% by weight of entire composition.
  • Anionic surfactants particularly useful for this application include, but are not limited to: linear alkyl benzene sulfonates (e.g. VistaTM C-500 from Vista Chemical Co.), alkyl sulfates (e.g. PolystepTM B-5 from Stepan Co.), polyoxyethylenated alkyl sulfates (e.g. StandapolTM ES-3 from Stepan Co.), alpha olefin sulfonates (e.g. WitconateTM AOS from
  • alpha sulfo m ieetthhyl esters e.g. Alpha-StepTM MC-48 from Stepan Co.
  • isethionates e.g. JordaponTM Cl from PPG Industries Inc.
  • Anionic surfactant is used in the formulation from about 0% to about 60%, preferably between 5% and 40%, more preferably 8 to 25% by weight.
  • the composition may comprise cationic surfactants and preferably cationic surfactants having at least one long chain alkyl group of about 10 to 24 carbon atoms are used.
  • compositions of the invention may use cationic surfactants alone or in combination with any of the other surfactants known in the art.
  • the compositions may contain no cationic surfactants at all.
  • the composition may comprise ampholytic synthetic detergents, being derivatives of aliphatic or aliphatic derivatives of heterocyclic secondary and tertiary amines in which the aliphatic radical may be a straight chain or a branched and wherein one of the aliphatic substituents contains from about 8 to 18 carbon atoms and at least one contains an anionic water-solubilizing group, e.g. carboxy, sulfonate, sulfate.
  • Examples of compounds falling within this definition are sodium 3(dodecylamino)propionate, sodium 3-(dodecylamino)propane-l-sulfonate, sodium 2- (dodecylamino)ethyl sulfate, sodium 2-(dimethylamino)octadecanoate, disodium 3-(N- carboxymethyldodecylamino)propane 1 -sulfonate, disodium octadecyl-imminodiacetate, sodium 1-carboxymethyl-2-undecylimidazole, and sodium N,N-bis(2-hydroxyethyl)-2- sulfato-3-dodecoxypropylamine.
  • Sodium 3-(dodecylamino)propane-l-sulfonate is preferred.
  • Zwitterionic surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds.
  • the cationic atom in the quaternary compound can be part of a heterocyclic ring.
  • zwitterionic surfactants which may be used are set forth in U.S. Pat. No. 4,062,647.
  • the amount of amphoteric used may vary from 0 to 50% by weight, preferably 1 to 30% by weight.
  • compositions of the invention are preferably isotropic (by which is generally understood to be a homogenous phase when viewed macroscopically) and either transparent or translucent.
  • Total surfactant used must be at least 10%, preferably at least 15%, more preferably at least 20% by wt.
  • the invention preferably comprises builders including conventional alkaline detergency builders, inorganic or organic, which can be used at levels from about 0% to about 50% by weight of the composition, preferably from 3% to about 35% by weight.
  • electrolyte means any water-soluble salt.
  • the composition comprises at least 1.0% by weight, more preferably at least 5.0% by weight, most preferably at least 10.0% by weight of electrolyte.
  • the electrolyte may also be a detergency builder, such as the inorganic builder sodium tripolyphosphate, or it may be a non-functional electrolyte such as sodium sulfate or chloride.
  • the inorganic builder comprises all or part of the electrolyte.
  • the composition may comprise at least 1%, preferably at least 3%, preferably 3% to as much as 50% by weight electrolyte.
  • compositions of the invention are capable of suspending particulate solids, although particularly preferred are those systems where such solids are actually in suspension.
  • the solids may be undissolved electrolyte, the same as or different from the electrolyte in solution, the latter being saturated electrolyte. Additionally, or alternatively, they may be materials which are substantially insoluble in water alone. Examples of such substantially insoluble materials are aluminosilicate builders and particles of calcite abrasive.
  • suitable inorganic alkaline detergency builders which may be used are water-soluble alkali metal phosphates, polyphosphates, borates, silicates and also carbonates.
  • suitable salts are sodium and potassium triphosphates, pyrophosphates, orthophosphates, hexametaphosphates, tetraborates, silicates, and carbonates.
  • organic alkaline detergency builder salts examples include: (1 ) water-soluble amino polycarboxylates, e.g., sodium and potassium ethylenediaminetetraacetates, nitrilotriacetates and N-(2 hydroxyethyl)- nitrilodiacetates; (2) water-soluble salts of phytic acid, e.g., sodium and potassium phytates (see U.S. Pat. No.
  • water- soluble polyphosphonates including specifically, sodium, potassium and lithium salts of ethane-1-hydroxy-l,1-diphosphonic acid; sodium, potassium and lithium salts of methylene diphosphonic acid; sodium, potassium and lithium salts of ethylene diphosphonic acid; and sodium, potassium and lithium salts of ethane-l,l,2-triphosphonic acid.
  • polycarboxylate builders can be used satisfactorily, including water-soluble salts of mellitic acid, citric acid, and carboxymethyloxysuccinic acid, salts of polymers of itaconic acid and maleic acid, tartrate monosuccinate, tartrate disuccinate and mixtures thereof (TMS/TPS).
  • zeolites or aluminosilicates can be used.
  • One such aluminosilicate which is useful in the compositions of the invention is an amorphous water-insoluble hydrated compound of the formula Na x [ (AIO 2 ) Y -SiO 2 ), wherein x is a number from 1.0 to 1.2 and y is 1 , said amorphous material being further characterized by a Mg++ exchange capacity of from about 50 mg eq. CaCO 3 /g. and a particle diameter of from 0.01 mm to 5 mm.
  • This ion exchange builder is more fully described in British Patent No. 1 ,470,250.
  • a second water-insoluble synthetic aluminosilicate ion exchange material useful herein is crystalline in nature and has the formula Na z [(AIO 2 )y(SiO 2 )] x H 2 O, wherein z and y are integers of at least 6; the molar ratio of z to y is in the range from 1.0 to about 0.5, and x is an integer from 15 to 264; said aluminosilicate ion exchange material having a particle size diameter from 0.1 mm to 100 mm; a calcium ion exchange capacity on an anhydrous basis of at test about 200 milligrams equivalent of CaCO 3 hardness per gram; and a calcium exchange rate on an anhydrous basis of at least 2 grains/gallon/minute/gram.
  • These synthetic aluminosilicates are more fully described in British Patent No. 1 ,429,143.
  • the composition comprises enzymes which may be used in the subject invention are described in greater detail below.
  • the lipolytic enzyme may be either a fungal lipase producible by Humicola lanuginosa and Thermomvces lanuginosus, or a bacterial lipase which show a positive immunological cross-reaction with the antibody of the lipase produced by the microorganism Chromobacter viscosum var. lipolyticum NRRL B-3673.
  • This microorganism has been described in Dutch patent specification 154,269 of Toyo Jozo Kabushiki Kaisha and has been deposited with the Fermentation Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry, Tokyo, Japan, and added to the permanent collection under nr.
  • TJ lipase The lipase produced by this microorganism is commercially available from Toyo Jozo Co., Tagata, Japan, hereafter referred to as "TJ lipase". These bacterial lipases should show a positive immunological cross-reaction with the TJ lipase antibody, using the standard and well-known immune diffusion procedure according to Ouchterlony (Acta. Med. Scan., 133. pages 76-79 (1930).
  • the preparation of the antiserum is carried out as follows:
  • the serum containing the required antibody is prepared by centrifugation of clotted blood, taken on day 67.
  • the titre of the anti-TJ-lipase antiserum is determined by the inspection of precipitation of serial dilutions of antigen and antiserum according to the Ouchteriony procedure. A dilution of antiserum was the dilution that still gave a visible precipitation with an antigen concentration of 0.1 mg/ml.
  • All bacterial lipases showing a positive immunological cross reaction with the TJ-lipase antibody as here above described are lipases suitable in this embodiment of the invention.
  • Typical examples thereof are the lipase ex Pseudomonas fluorescens IAM 1057 (available from Amano Pharmaceutical Co., Nagoya, Japan, under the trade-name Amano-P lipase), the lipase ex Pseudomonas fragi FERM P 1339 (available under the trade-name Amano B), the lipase ex Pseudomonas nitroreducens var. lipolyticum FERM P1338, the lipase ex Pseudomonas sp.
  • a fungal lipase as defined above is the lipase ex Humicola lanuginosa available from Amano under the tradename Amano CE; the lipase ex Humicola lanuginosa as described in the aforesaid European Patent Application 0,258,068 (NOVO), as well as the lipase obtained by cloning the gene from Humicola lanuginosa and expressing this gene in Aspergillus oryzae, commercially available from NOVO industri A/S under the tradename "Lipolase”.
  • This lipolase is a preferred lipase for use in the present invention.
  • lipase enzymes While various specific lipase enzymes have been described above, it is to be understood that any lipase which can confer the desired lipolytic activity to the composition may be used and the invention is not intended to be limited in any way by specific choice of lipase enzyme.
  • the lipases of this embodiment of the invention are included in the liquid detergent composition in such an amount that the final composition has a lipolytic enzyme activity of from 100 to 0.005 LU/ml in the wash cycle, preferably 25 to 0.05 LU/ml when the formulation is dosed at a level of about 0.1-10, more preferably 0.5-7, most preferably 1-2 g/liter.
  • lipases can be used in their non-purified form or in a purified form, e.g. purified with the aid of well-known absorption methods, such as phenyl sepharose absorption techniques.
  • the proteolytic enzyme can be of vegetable, animal or microorganism origin. Preferably, it is of the latter origin, which includes yeasts, fungi, molds and bacteria. Particularly preferred are bacterial subtilisin type proteases, obtained from e.g. particular strains of B. subtilis and B licheniformis. Examples of suitable commercially available proteases are AlcalaseTM, SavinaseTM, EsperaseTM, all of NOVO lndustri A/S; MaxataseTM and MaxacalTM of Gist-Brocades; KazusaseTM of Showa Denko; BPN and BPN' proteases and so on.
  • the amount of proteolytic enzyme, included in the composition ranges from 0.05-50,000 GU/mg. preferably 0.1 to 50 GU/mg, based on the final composition. Naturally, mixtures of different proteolytic enzymes may be used.
  • protease which can confer the desired proteolytic activity to the composition may be used and this embodiment of the invention is not limited in any way be specific choice of proteolytic enzyme.
  • lipases or proteases In addition to lipases or proteases, it is to be understood that other enzymes such as cellulases, oxidases, amylases, peroxidases and the like which are well known in the art may also be used with the composition of the invention.
  • the enzymes may be used together with cofactors required to promote enzyme activity, i.e., they may be used in enzyme systems, if required.
  • enzymes having mutations at various positions are also contemplated by the invention.
  • One example of an engineered commercially available enzyme is Durazym from Novo.
  • the formulation may be enzyme free i.e. 0% by weight of enzymes.
  • Alkalinity buffers which may be added to the compositions of the invention include monoethanolamine, triethanolamine, borax, sodium silicate and the like.
  • Hydrotropes which may be added to the invention include ethanol, sodium xylene sulfonate, sodium cumene sulfonate and the like.
  • bentonite This material is primarily montmorillonite which is a hydrated aluminum silicate in which about 1/6th of the aluminum atoms may be replaced by magnesium atoms and with which varying amounts of hydrogen, sodium, potassium, calcium, etc. may be loosely combined, he bentonite in its more purified form (i.e. free from any grit, sand, etc.) suitable for detergents contains at least 30% montmorillonite and thus its cation exchange capacity is at least about 50 to 75 meg per 100g of bentonite.
  • Particularly preferred bentonites are the Wyoming or Western U.S.
  • bentonites which have been sold as Thixo-jels 1 , 2, 3 and 4 by Georgia Kaolin Co. These bentonites are known to soften textiles as described in British Patent No. 401 ,413 to Marriott and British Patent No. 461 ,221 to Marriott and Guam.
  • detergent additives of adjuvants may be present in the detergent product to give it additional desired properties, either of functional or aesthetic nature.
  • Improvements in the physical stability and anti-settling properties of the composition may be achieved by the addition of a small effective amount of an aluminum salt of a higher fatty acid, e.g., aluminum stearate, to the composition.
  • the aluminum stearate stabilizing agent can be added in an amount of 0 to 3%, preferably 0.1 to 2.0% and more preferably 0.5 to l.5%.
  • soil suspending or anti- redeposition agents e.g. polyvinyl alcohol, fatty amides, sodium carboxymethyl cellulose, hydroxy-propyl methyl cellulose.
  • a preferred anti-redeposition agent is sodium carboxyl methyl cellulose having a 2:1 ratio of CM/MC which is sold under the tradename Relatin DM 4050.
  • a deflocculating polymer comprises a hydrophilic backbone and one or more hydrophobic side chains.
  • the deflocculating polymer generally will comprise, when used, from 0.1 to 5% of the composition, preferably 0.1 to 2% and most preferably, 0.5 to 1.5%.
  • Optical brighteners for cotton, polyamide and polyester fabrics can be used.
  • Suitable optical brighteners include TinopalTM, stilbene, triazole and benzidine sulfone compositions, especially sulfonated substituted triazinyl stilbene, sulfonated naphthotriazole stilbene, benzidene sulfone, etc., most preferred are stilbene and triazole combinations.
  • a preferred brightener is Stilbene Brightener N4 which is a dimorpholine dianilino stilbene sulfonate.
  • Anti-foam agents e.g. silicone compounds, such as Silicane L 7604, can also be added in small effective amounts.
  • Bactericides e.g. tetrachlorosalicylanilide and hexachlorophene, fungicides, dyes, pigments (water dispersible), preservatives, e.g. formalin, ultraviolet absorbers, anti- yellowing agents, such as sodium carboxymethyl cellulose, pH modifiers and pH buffers, color safe bleaches, perfume and dyes and bluing agents such as lragon Blue L2D, Detergent Blue 472/372 and ultramarine blue can be used.
  • preservatives e.g. formalin, ultraviolet absorbers, anti- yellowing agents, such as sodium carboxymethyl cellulose, pH modifiers and pH buffers, color safe bleaches, perfume and dyes and bluing agents
  • lragon Blue L2D Detergent Blue 472/372 and ultramarine blue
  • soil release polymers and cationic softening agents may be used.
  • the inventive compositions may contain all or some the following ingredients: zwitterionic surfactants (e.g. MirataineTM BET C-30 from Rhone-Poulenc Co.), cationic surfactants (e.g. SchercamoxTM DML from Scher Chemicals, Inc.), fluorescent dye, antiredeposition polymers, antidye transfer polymers, soil release polymers, protease enzymes, lipase enzymes, amylase enzymes, cellulase enzymes, peroxidase enzymes, enzyme stabilizers, perfume, opacifiers, UV absorbers, builders, and suspended particles of size range 300-5000 microns.
  • zwitterionic surfactants e.g. MirataineTM BET C-30 from Rhone-Poulenc Co.
  • cationic surfactants e.g. SchercamoxTM DML from Scher Chemicals, Inc.
  • fluorescent dye e.g. MirataineTM BET C-30 from Rhone-Poulenc Co.
  • the composition is preferably transparent or translucent.
  • the deflector cap is especially advantageous with transparent/translucent compositions because sprayed transparent/translucent compositions would be more difficult to locate due to the lack of colour. It is therefore more important to prevent vertical spray of such compositions.
  • compositions of the invention have at least 50% transmittance of light using a 1 centimeter cuvette, at a wavelength of 410-800 nanometers, preferably 570-690 nm wherein the composition is substantially free of dyes.
  • transparency of the composition may be measured as having an absorbency in the visible light wavelength (about 410 to 800 nm) of less than 0.3 which is in turn equivalent to at least 50% transmittance using cuvette and wavelength noted above.
  • absorbency in the visible light wavelength about 410 to 800 nm
  • it is considered to be transparent/translucent.
  • FIG. 1. is an enlarged perspective view of one embodiment of the invention.
  • FIGS. 2a,2b,2c are a schematic side view of the container in use.
  • squeeze-operated container 1 comprises a storage chamber 3 (shown partially in Fig 1 but wholly in figs 2a-2c) containing a laundry fluid 13 and a measuring chamber 5.
  • the measuring chamber 5 comprises a base 7 from which upwardly extends a spout 9 which is in fluid communication with the storage chamber 3.
  • the storage container 3 is squeeze operated and squeezing forces the laundry fluid 13 into the measuring chamber 5.
  • the spout 9 comprises a deflector cap 15 on the top of the spout 9 with two diametrically opposed lateral apertures 17 on the spout such that the laundry fluid 3 exits the spout laterally as shown by arrows 21.
  • the lateral apertures 17 are 60° annular sections of the spout and the deflector cap extends radially outward beyond the radial extent of the apertures 17. The 60° annular sections allow egress from the container by a viscous laundry composition .
  • the deflector cap When the fluid is forced into the measuring chamber by squeezing the storage chamber, the deflector cap prevents or reduces vertical spray of the fluid which can be occasioned by excessive force applied to the storage chamber. This is especially useful with laundry liquids, where upward vertical spray would be highly undesirable.
  • the deflector cap in forming a canopy over the apertures enhances spray control providing lateral and downward spray, given the large dispensing apertures.
  • the deflector cap here comprises a plate section connected by diametrically opposing arms 23 to the top of the spout.
  • the deflector cap comprises a depending skirt which extends all the way around the circumference of the plate so that the lateral aperture or apertures are spaced apart from the top of the spout.
  • the diameter of the plate is greater than that of the spout, such that the deflector cap skirt extends as a canopy over the or each aperture to deflect more effectively any inadvertent vertical directed spray.
  • the measuring chamber may be integral with the storage container or may be a separate device which may be attached e.g. by a screw-fit or snap-fit attachment.
  • the measuring chamber here is a part of a closure device for the container.
  • the closure device 30 is flip- top cap, the body of which remains attached the container and houses the measuring chamber, and the flip-top is moved between an open/closed position by the user.
  • composition A is according to the invention.
  • Borax Sodium tetraborate (10aq) nonionic surfactant: ethoxylated alcohol with on average 9 ethylene oxide groups.
  • the gel detergent composition exemplified by composition A was found to be shear thinning and stable. Furthermore, typical detergent particles of density between 0.8 and 0.9 g/cm3 and having a diameter up to 5000 microns could be stable suspended in this composition for more than 2 weeks without any observable net movement of the particles.
  • Viscosity was measured at varying shear rates from very low shear up to a shear regime in excess of 100 s ' ⁇ Two situations are shown: the viscosity measured at relatively low shear (20 s "1 ) and that measured at much higher shear (100 s "1 ). It can be seen that the viscosity of composition A at high shear is much lower than that obtained at low shear, whereas composition B shows almost equal viscosity's for high and low shear. In other words composition A is clearly shear thinning, whereas composition B is not.
  • Borax Sodium tetraborate (10aq) nonionic surfactant: ethoxylated alcohol with on average 9 ethylene oxide groups
  • Sodium alcohol EO sulphate ethoxylated alcohol sulphate with on average 3 ethylene oxide groups.
  • Composition B was is a stable, transparent, pourable shear thinning liquid, capable of stable suspending typical detergent particles having a density of between 0.8 and 0.9 g/cm3 and a diameter of up to 5000 microns, for more than 2 weeks without any observable net movement of the particles.
  • Critical rheological parameters for the two compositions are shown below.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention, selon un premier aspect, porte sur un contenant actionné par pression (1), comprenant une chambre de stockage (3) contenant une composition de fluide de lessive (13) qui présente une réduction de cisaillement et qui a une viscosité d'au moins 100 Pa.s au repos, et qui a une contrainte de cisaillement atteignant jusqu'à 10 Pa ; et une chambre de mesure (5), la chambre de mesure comprenant une base (7) à partir de laquelle s'étend vers le haut un bec verseur de distribution (9) en communication de fluide avec la chambre de stockage ; et un bec verseur, le contenant de stockage pouvant être pressé pour forcer la composition de fluide de lessive dans la chambre de mesure, et le bec verseur de distribution comprenant un capuchon déflecteur (15) au sommet du bec verseur de distribution et une ou plusieurs ouvertures latérales (17) sur le bec verseur, de telle sorte que le fluide de lessive visqueux sort du bec verseur latéralement et vers le bas, le contenant étant caractérisé en ce que la ou les ouvertures comprennent des sections annulaires d'au moins 60° et que le capuchon déflecteur s'étend radialement vers l'extérieur des ouvertures.
EP09763976A 2009-01-09 2009-12-04 Système de dosage mesuré anti-pulvérisation pour liquides de lessive à réduction de cisaillement visqueux Withdrawn EP2376340A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09763976A EP2376340A1 (fr) 2009-01-09 2009-12-04 Système de dosage mesuré anti-pulvérisation pour liquides de lessive à réduction de cisaillement visqueux

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09150291 2009-01-09
PCT/EP2009/066407 WO2010079023A1 (fr) 2009-01-09 2009-12-04 Système de dosage mesuré anti-pulvérisation pour liquides de lessive à réduction de cisaillement visqueux
EP09763976A EP2376340A1 (fr) 2009-01-09 2009-12-04 Système de dosage mesuré anti-pulvérisation pour liquides de lessive à réduction de cisaillement visqueux

Publications (1)

Publication Number Publication Date
EP2376340A1 true EP2376340A1 (fr) 2011-10-19

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Country Status (4)

Country Link
EP (1) EP2376340A1 (fr)
BR (1) BRPI0923945A2 (fr)
WO (1) WO2010079023A1 (fr)
ZA (1) ZA201104613B (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2067517A (en) * 1980-01-22 1981-07-30 Aerosol Inventions Dev Metering dispensers
DE3241054A1 (de) * 1982-11-06 1984-05-10 Verpackungs-Industrie Kutenholz GmbH, 2741 Kutenholz Vorrichtung zum dosierten ausgeben von fluessigkeiten aus zusammendrueckbaren behaeltern
GB8325322D0 (en) * 1983-09-21 1983-10-26 Cope Allman Plastics Ltd Metering dispensers
GB8608526D0 (en) * 1986-04-08 1986-05-14 English Glass Co Ltd Metering dispenser
EP0539647A1 (fr) * 1991-10-31 1993-05-05 The Procter & Gamble Company Conteneur de liquide à paroi déformable avec chambre de dosage amovible
DE9310105U1 (de) * 1993-07-07 1993-11-25 Seifenfabrik Budich GmbH, 32120 Hiddenhausen Dosierer für/an eine Reinigungsflüssigkeit beinhaltende Flaschen
IT1267839B1 (it) * 1994-07-22 1997-02-18 Taplast Srl Ora Taplast S P A Tappo dosatore per recipienti deformabili contenenti liquidi

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2010079023A1 *

Also Published As

Publication number Publication date
WO2010079023A1 (fr) 2010-07-15
BRPI0923945A2 (pt) 2016-07-19
ZA201104613B (en) 2012-08-29

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