[go: up one dir, main page]

GB2308128A - Detergent composition - Google Patents

Detergent composition Download PDF

Info

Publication number
GB2308128A
GB2308128A GB9525774A GB9525774A GB2308128A GB 2308128 A GB2308128 A GB 2308128A GB 9525774 A GB9525774 A GB 9525774A GB 9525774 A GB9525774 A GB 9525774A GB 2308128 A GB2308128 A GB 2308128A
Authority
GB
United Kingdom
Prior art keywords
composition
viscosity
detergent
paste
level
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Withdrawn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
GB9525774A
Other versions
GB9525774D0 (en
Inventor
Michael Christopher Cafe
Kenneth Metcalfe
Gordon George Mcleod
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
Original Assignee
Unilever PLC
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 filed Critical Unilever PLC
Priority to GB9525774A priority Critical patent/GB2308128A/en
Publication of GB9525774D0 publication Critical patent/GB9525774D0/en
Priority to TR96/01004A priority patent/TR199601004A2/en
Priority to BR9606025A priority patent/BR9606025A/en
Priority to CN 96123085 priority patent/CN1156755A/en
Publication of GB2308128A publication Critical patent/GB2308128A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/003Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/37Mixtures of compounds all of which are anionic
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/06Phosphates, including polyphosphates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/10Carbonates ; Bicarbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29Sulfates of polyoxyalkylene ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Detergent Compositions (AREA)

Description

DETERGENT COMPOSITION This invention relates to a detergent composition and in particular to a detergent composition in paste form.
Detergent compositions in paste form are known for use in hand washing, personal washing and laundry washing applications. Detergent products in the form of powders and bars are well known for use in the washing of fabrics and generally are employed far more widely than detergent pastes for this particular application. However detergent pastes provide a suitable form of detergent product especially for washing applications in which the product is applied directly to the fabric to be washed. Furthermore detergent pastes may also be employed in which the detergent is dosed into a liquor to provide a solution wash as is the norm with detergent powders. Pastes therefore provide the consumer with a flexibility as regards the type of washing operation which may be employed.
It is desirable to ensure that the viscosity of the paste is such that the paste is not so pourable that significant wastage is encountered in a. direct application washing process and also that the paste is not so viscous that dispersibility and dissolution in a solution washing process become unacceptable if this flexibility of use is to be retained. Control of the viscosity of the paste to provide an optimum combination of characteristics is desirable.
WO 95/09224 discloses a fabric washing detergent composition in paste form containing a mixture of nonionic and anionic surfactant of the sulphate and sulphonate type. The problem addressed in this disclosure is to minimise changes in viscosity due to an increasing or variable salt content from the surfactant raw materials. WO 95/09224 also discloses that a relatively modest level of salt, 0.5% in the case of a paste composition containing long chain alkyl sulphate as the only anionic surfactant, may lead to an unacceptable decrease in the viscosity of the composition; thus the level of salt may affect the viscosity of the paste composition.This document discloses that 0.05 to Swt% of alkali metal and/or ammonium sulphate and/or chloride may be present in the composition together with the nonionic surfactant and alkyl benzene sulphonate and ether sulphate and/or alkyl sulphate surfactant.
Although control of viscosity is important, using a variety of surfactants or higher levels thereof may be undesirable on cost grounds particularly in markets where the detergent paste product sells primarily on the basis of its price.
We have surprisingly found that detergent pastes having acceptable viscosity characteristics may be obtained by including in the paste composition a hydratable builder salt at a level of more than 5% by weight of the composition without the need to necessarily employ a variety of surfactants in order to control the viscosity.
Accordingly a first aspect of the invention provides a detergent composition in paste form comprising an anionic surfactant in an amount of 5 to 40% by weight of the composition and a hydratable builder salt in an amount of more than 5% by weight of the composition wherein the level of the builder salt exceeds that of the anionic surfactant and the paste has a viscosity of 7 to 700Pa.s at a shear rate of ls-l.
Suitably any hydratable salt may be employed although it is preferred if the hydratable builder salt is selected from builders such as polyphosphates orthophosphates, tripolyphosphates, phosphates, tetraphosphates, pyrophosphates, carbonates and bicarbonates and the alkaline metal and ammonium salts of any of the foregoing.
Preferably the hydratable salt is present at a level of at least 10% and desirably at least 15% by weight of the composition. Suitably the level of the hydratable salt does not exceed 50% and preferably does not exceed 40% by weight of the composition and a level of not more than 30% is especially preferred.
In a particularly preferred embodiment, the hydratable salt comprises sodium tripolyphosphate and optionally sodium carbonate. Sodium tripolyphosphate is preferably present in an amount of 15 to 35% and preferably less than 30% by weight of the composition and, if present, the carbonate is suitably at a level of 1 to 12% especially 1 to 10% by weight of the composition.
As regards the anionic surfactant, any conventional anionic surfactant may be employed including linear or branched alkyl benzene sulphonate, alkyl sulphate, alkyl ether sulphate, alkane sulphonate, oleo in sulphonate, fatty acid monoglyceride sulphate, alkyl glycerol ether sulphate, acyl sarcosinates, salts of C6 to C20 fatty acids and rosin acids.
Suitably the anionic surfactant is present as an alkaline metal, alkaline earth metal or an ammonium or substituted ammonium salt.
Preferably the anionic surfactant comprises linear alkyl benzene sulphonate and optionally an alkyl ether sulphate.
These surfactants suitably have a C9 to Clsalkyl chain and in the case of the ether sulphate, from 1 to 10 and preferably 1 to 5 alkylene oxide and suitably ethylene oxide, residues.
The anionic surfactant may be incorporated as a preneutralised material or the acid form of the surfactant may be incorporated with a suitable quantity of alkaline material in order to effect the neutralisation of the acid.
Preferably the anionic surfactant is present at a level of 5 to 35%, more preferably 5 to 20% especially 10 to 20% by weight of the composition. Where the composition comprises an alkyl benzene sulphonate and an alkyl ether sulphate, the sulphonate is suitably present at a level of 8 to 20% and preferably 10 to 18% by weight of the composition and the sulphate is suitably present at a level of 1 to 6%, preferably 1 to 4% by weight of the composition. These levels represent a highly preferred embodiment of the present invention.
The combination of linear alkyl benzene sulphonate and alkyl ether sulphate is especially preferred as the tolerance of the detergent composition to calcium in the wash water may be improved and also suitable mildness characteristics may be obtained.
The level of surfactant in the composition is selected according to the performance criteria required and having regard to cost.
Suitably the level of builder salt exceeds the level of surfactant in the composition but is preferably less than 5:1, more preferably 1.1 to 2.5:1 builder salt to surfactant on a weight basis.
Other surfactants may be included in the composition as desired. Suitable other surfactants include nonionic, amphoteric and cat ironic surfactants which may be included in order to provide improved cleaning performance or other desirable properties.
If other surfactants are present, the detergent composition preferably contains nonionic surfactant, especially alcohol alkoxylates which desirably have a linear or branched alkyl chain having 9 to 15 carbon atoms and which have an average degree of ethoxylation of 1 to 15, preferably 1 to 10 for example 3 and 7. Nonionic surfactants may be employed in the composition in order to provide improved skin mildness characteristics.
The viscosity of the paste may be tailored according to local market requirements. Less viscous pastes may be provided by including water in the composition at a relatively high level such as at least 45% and, according to the viscosity required up to 75% by weight of the composition. The precise level may be selected according to the other components in the composition to provide a paste which has a viscosity of not less than 7Pa.s and suitably 7 to 100Pa.s.
Detergent pastes according to the invention having a higher viscosity may be produced by incorporating a solid material for example a filler. Suitable fillers include conventional inorganic fillers such as kaolin, silica, starch, bentonite, talc, clay, silicate and especially calcite. The amount of inorganic material included as a filler will vary according to the desired viscosity but generally will not exceed 15%, and or preferably not exceed 12% by weight of the composition. High viscosity compositions according to the invention suitably have a viscosity of more than 100 and up to 700Pa.s.
Preferably the detergent paste is formulated so that in use as a paste in a direct washing application, it has a pH of 8 to 11.5, preferably 9 to 11.
Compositions according to the invention may be prepared by incorporating the components of the composition into a batch mixer with agitation in order to provide a substantially homogeneous composition. For high viscosity pastes, a Winkworth Z-blade mixer may suitably be employed and for lower viscosity compositions, for example below about 100Pa.s, a conventional batch mixer equipped with paddles may be employed.
Compositions according to the invention may comprise other ingredients conventionally found in detergent compositions, including fluorescors lather control agents or lather boosters as appropriate, dyes, perfumes and the like. This list is not intended to be exhaustive. All viscosities referred to herein are measured at a shear rate of ls- and all amounts and proportions and by weight unless otherwise specified.
The invention is illustrated by the following non-limiting Examples.
Examples 1 to 6 Compositions as detailed in Table 1 below were produced by dosing the components into the batch mixer in the order listed in the Table with each component being incorporated into the mixture before the addition of the next component.
The process was conducted at about 400C and for Examples 1 to 5 was carried out in a three blade paddle mixer and for Examples 6 and 7 was carried out in a Winkworth Z-blade mixer.
Table 1 Example 1 2 3 4 5 6 7 Water 63 56 53 48 45 44 42 "STP 20 23 29 29 30 29 29 Na2CO3 2. 5 4. 6 1. 5 1. 5 9 2.0 2.0 bSLES 2. 5 3. 5 3.0 3.0 3 3.0 3.0 Silica 0 0 0 6 0 9 11 Minors 0.4 0.4 0.4 0.4 0.4 0.4 0.4 dLAS 12 12 13 12 12 13 13 a THERMPHOS ex Hoechst b Sodium lauryl ether sulphate ELFAN243S ex Akzo MICROSIL ED ex Crosfield d C11/14 linear alkyl benzene sulphonate ISOCHOR 113 ex Lever Brothers. This component was produced in situ by incorporating sodium hydroxide before SLES and LAS acid immediately after the SLES in quantities sufficient to produce the stated level of LAS.
All quantities are listed on a part by weight basis unless specified otherwise.
The compositions of Examples 1 to 5 all had a viscosity between 7 and 70Pa.s and Examples 6 and 7 had a viscosity between 70 and 700Pa.s.
Compositions produced according to Examples 1 to 7 all exhibited acceptable washing performance and desirable foaming and sensory properties when tested by manual application and washing of fabrics.

Claims (1)

  1. Claims
    1. A detergent composition in paste form comprising an anionic surfactant in an amount of 5 to 40% by weight of the composition and a hydratable builder salt in an amount of more than 5% by weight of the composition wherein the level of the builder salt exceeds that of the anionic surfactant and the paste has a viscosity of 7 to 700Pa.s at a shear rate of lsl.
GB9525774A 1995-12-16 1995-12-16 Detergent composition Withdrawn GB2308128A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9525774A GB2308128A (en) 1995-12-16 1995-12-16 Detergent composition
TR96/01004A TR199601004A2 (en) 1995-12-16 1996-12-13 Detergent compositions.
BR9606025A BR9606025A (en) 1995-12-16 1996-12-16 Detergent composition and manufacturing process
CN 96123085 CN1156755A (en) 1995-12-16 1996-12-16 Detergent composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9525774A GB2308128A (en) 1995-12-16 1995-12-16 Detergent composition

Publications (2)

Publication Number Publication Date
GB9525774D0 GB9525774D0 (en) 1996-02-14
GB2308128A true GB2308128A (en) 1997-06-18

Family

ID=10785560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9525774A Withdrawn GB2308128A (en) 1995-12-16 1995-12-16 Detergent composition

Country Status (4)

Country Link
CN (1) CN1156755A (en)
BR (1) BR9606025A (en)
GB (1) GB2308128A (en)
TR (1) TR199601004A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004056957A1 (en) * 2002-12-19 2004-07-08 Unilever Plc Detergent composition
WO2004056950A1 (en) * 2002-12-19 2004-07-08 Unilever Plc Detergent composition
WO2004057088A1 (en) * 2002-12-19 2004-07-08 Unilever Plc Cleaning device
WO2006094625A1 (en) * 2005-03-04 2006-09-14 Unilever Plc Laundry detergent composition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106479689A (en) * 2016-09-09 2017-03-08 北京神雾环境能源科技集团股份有限公司 A kind of carbide slag base household cleanser and its application
CN110423651A (en) * 2019-08-28 2019-11-08 河北翰林生物科技有限公司 A kind of sterilizing place cleaning agent

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1531566A (en) * 1975-02-14 1978-11-08 Procter & Gamble Detergent builder and detergent composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1531566A (en) * 1975-02-14 1978-11-08 Procter & Gamble Detergent builder and detergent composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004056957A1 (en) * 2002-12-19 2004-07-08 Unilever Plc Detergent composition
WO2004056950A1 (en) * 2002-12-19 2004-07-08 Unilever Plc Detergent composition
WO2004057088A1 (en) * 2002-12-19 2004-07-08 Unilever Plc Cleaning device
WO2006094625A1 (en) * 2005-03-04 2006-09-14 Unilever Plc Laundry detergent composition

Also Published As

Publication number Publication date
TR199601004A2 (en) 1997-07-21
BR9606025A (en) 1998-09-01
CN1156755A (en) 1997-08-13
GB9525774D0 (en) 1996-02-14

Similar Documents

Publication Publication Date Title
US5043091A (en) Process for manufacturing alkyl polysaccharide detergent laundry bar
CA1222426A (en) Thixotropic automatic dishwasher composition with chlorine bleach
US4740327A (en) Automatic dishwasher detergent compositions with chlorine bleach having thixotropic properties
DK170074B1 (en) Aqueous, thixotropic, liquid dishwasher detergent
KR960015369B1 (en) Washing and cleaning agent in paste form and process for producing it
DK158155B (en) DISHES OF THE GEL TYPE WITH THIXOTROP PROPERTIES
CA1139505A (en) Detergent softener compositions
JPS6312194B2 (en)
US6037316A (en) Water soluble abrasive composition containing borax pentahydrate
CA1259012A (en) Homogeneous laundry detergent slurries containing amphoteric surface-active agents
CA1228453A (en) Bleaching compositions
KR100260693B1 (en) Liquid cleaning compositions comprising primary alkyl sulohate and non-ionic surfactants
US6121227A (en) Liquid detergent
US4950416A (en) Liquid dishwasher detergent composition
AT394863B (en) TEXTILE SOFTENING LIQUID FULL DETERGENT
CA1298163C (en) Surfactant mixtures and their use
GB2308128A (en) Detergent composition
WO1999042554A1 (en) Soap bar
DE68917763T2 (en) Liquid detergent.
US4806273A (en) Breakage resistant higher fatty alcohol sulfate detergent laundry bars
US4992193A (en) Granular detergent composition including soap noodles that contain free fatty acid to improve dissolution
CA1319308C (en) High alkalinity liquid automatic dishwasher detergent compositions
EP0693548B1 (en) A stable concentrated premix and its use for manufacturing aqueous detergent compositions
US5888953A (en) Use of microwave energy to form soap bars
AU598489B2 (en) Detergent composition of improved oily soil removing capability

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)