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CN107787356A - Laundry pretreatment compositions - Google Patents

Laundry pretreatment compositions Download PDF

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Publication number
CN107787356A
CN107787356A CN201680035384.8A CN201680035384A CN107787356A CN 107787356 A CN107787356 A CN 107787356A CN 201680035384 A CN201680035384 A CN 201680035384A CN 107787356 A CN107787356 A CN 107787356A
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CN
China
Prior art keywords
weight
acid
fabric
composition
pretreatment compositions
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Granted
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CN201680035384.8A
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Chinese (zh)
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CN107787356B (en
Inventor
K·阿查尔亚
A·班加尔
J·P·科图卡帕里
N·苏布拉马尼亚姆
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Unilever IP Holdings BV
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Unilever NV
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    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2093—Esters; Carbonates
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/008—Polymeric surface-active agents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/667—Neutral esters, e.g. sorbitan esters
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)

Abstract

Disclosed herein is aqueous laundry pretreatment compositions, and it is included：(i) 0.5 weight % to 15 weight % surfactant, the glass or plastic containers or ethoxylation anion surfactant or its mixture；(ii) 0.5 weight % to 8 weight % at least one unneutralized aliphatic acid at 20 DEG C with the pKa more than 5；(iii) at least one organic acid with 2 to 5 pKa at 20 DEG C of 0.5 weight % to 5 weight %, and (iv) 0.5 weight % is to 10 weight % water-insoluble fatty acid ester.The composition provides dramatically increasing for decontamination index, particularly oiliness/sebum spot to being deposited on cotton or polyester bafta.

Description

Laundry pretreatment compositions
Invention field
The present invention relates to laundry pretreatment compositions, it is particularly useful for the cotton stained or polyester cotton (polycotton) is knitted Thing.
Background technology
It is difficult to reach from fabric (particularly cotton and polyester cotton) removing machine oil, mechanical grease and other hydrophobicity oil-dirts Gratifying degree.Therefore, consumer is beneficial to obtain some extra decontaminations commonly using various laundry pretreatment compositions Place.
One-step method and two-step method can be categorized as by becoming known for staining the method for the pretreatment of fabric.Typical two-step method is led to Often it is related to progressively to be handled with two kinds of single component/compositions and stains fabric.In the first step, make to stain fabric and be used as decontamination The first component contact of pretreatment compositions.In second step, the fabric of pretreatment is washed with laundry detergent composition.
The cleansing composition of all kinds and form is known.Such composition is generally to specific spot or one kind Spot is effective.It has been generally observed that oil-dirt has higher affinity to some fabrics (such as cotton and polyester cotton), and Therefore they are more difficult to expel from these fabrics.
WO2013092184A1 (Unilever) discloses contaminates dirty fabric so that it is during wash cycle for handling It is more easily cleaned, especially makes the fabric more hydrophilic and thus increase the method for the removal of oil-dirt.The composition tool There are metal salt (such as aluminium polychloride) and carboxylic acid polyalcohol, organic acid and polysaccharide.
From the perspective of detergent industry, decontamination is important.From the robust method for staining fabric and expelling a large amount of spots The sustainable use of Betengent product can be caused, or can even allow detergent composition at a lower temperature using simultaneously Save the energy.Therefore, it is necessary to assist and improve the detergency on hydrophilic fabricses (such as cotton or polyester cotton), especially for oil Property and sebum spot.
GB338121A (Marquardt and Walter, 1930) discloses two-step method.With unneutralized, saponifiable fat It is the second component of alkalescence after the administration of first component of fat acid (such as oleic acid, palmitic acid or stearic acid).
US2004/058838A1 (Unilever) discloses shear thinning gel detergent compositions.Lived according to total surface Property agent content, the composition contain the unneutralized aliphatic acid of ormal weight.The product provides the pretreatment of single product and master washes The two-fold advantage of detergency.WO10023043A1 (Unilever) discloses is higher than 20 DEG C with least 55 weight % fusing point Aliphatic acid, polyol binder, the laundry pretreatment compositions of water and surfactant.
US2005/090412A1 (Unilever) discloses pH 7 gel laundry detergent composition/pretreatment combination size Thing, it has anion surfactant, unneutralized aliphatic acid, nonionic surfactant and sodium citrate.US205/ 0176610A1 (Unilever) discloses slightly similar preparation.
WO2011/163457A1 (P＆G) discloses the laundry detergent composition with about 8 pH.
EP2767582A1 (P＆G) discloses the detergent composition without any water-insoluble fatty acid ester.
WO2015/135866A1 (Henkel) discloses detergent and pretreatment without any water-insoluble fatty acid ester Composition.
US4457857A (Sepulveda Ralph R, 1984) discloses Arrcostab (its containing 25 to 100 weight % Mixed with nonionic surfactant) liquid stain release composition.
EP0256354A1 (Henkel, 1988) discloses laundry pretreatment compositions, and it contains solvent, 10 to 90 weights Measure % fatty acid ester.The composition is free of organic acid.
However, at least some oil for higher substantivity (more substantive) in the composition of prior art Property or sebum spot are insufficient to effectively.
Therefore need to provide the laundry pretreatment compositions of technical scheme.
The content of the invention
We have found that comprising surfactant, it is unneutralized with more than 5 pKa aliphatic acid, with 2 to 5 PKa organic acid and 0.5 weight % to 10 weight % water-insoluble fatty acid ester composition to (particularly existing on fabric On cotton and polyester cotton) oiliness or sebum spot synergistically work.
According in a first aspect, disclosing aqueous laundry pretreatment compositions, it is included：
(i) 0.5 weight % to 15 weight % surfactant, the glass or plastic containers or Ethoxylation anion surfactant or its mixture；
(ii) 0.5 weight % to 8 weight % at least one unneutralized fat at 20 DEG C with the pKa more than 5 Acid；
(iii) 0.5 weight % to 5 weight % at least one organic acid with 2 to 5 pKa at 20 DEG C, and
(iv) 0.5 weight % to 10 weight % water-insoluble fatty acid ester.
According to second aspect, disclose the aqueous laundry pretreatment compositions of first aspect, its be used to being related to oiliness or The cotton or the fabric laundering process of polyester bafta that sebum spot is stained, to provide the decontamination index according to reflectometer method (SRI) increase of at least two units.
According to the third aspect, the aqueous laundry pretreatment compositions for disclosing first aspect are used for dirty with oiliness or sebum Dye the increase at least two units that the decontamination index (SRI) according to reflectometer method is provided on the cotton or polyester bafta of dirt Purposes.
According to fourth aspect, disclose from the method for staining fabric removing oiliness or sebum spot, it includes making the dye A step of part for dirty fabric contacts with the composition of 0.5ml to 5ml first aspect, followed by it is clear with aqueous laundry washing lotion The fabric of clean contact is either dry-cleaned.
Embodiment
Hydrophilic fibre (such as cotton) has to water than the affinity higher to oil.In laundry processes, water is from fabric face Dislocation oily dirt, cause dirt " rolling (roll-up) "；Then dirt can be removed easily by mechanism.Polyester Fiber (such as those manufactured by the copolymer of ethylene glycol and terephthalic acid (TPA)) does not have this selective affinity to water, instead It is but hydrophobic.It has been observed that common laundry does not generally satisfactorily remove oily dirt from fabric, because such Spot has height substantivity to such fabric.
The invention provides laundry pretreatment compositions, it can make spot release (loosen-up), thus wash it It is easier to be removed during washing.
Composition according to the present invention is water-based.In other words, composition includes substantial amounts of water.Preferably composition Water with 60 weight % to 95 weight %.It is highly preferred that composition has 70 to 95 weight % water.Water shape in the composition Into continuous aqueous phase, and it is provided for being easily administered to the medium stained on fabric.
Surfactant
0.5 weight % is included to 15 weight % surfactant, the surfactant according to the composition of the present invention It is nonionic surfactant or ethoxylation anion surfactant or its mixture.In other words, surfactant is Single nonionic surfactant or ethoxylation anion surfactant, or be alternatively to add up to 0.5 weight % To 15 weight % both mixtures.
It is required that surfactant produces emulsion for detergency and together with continuous aqueous phase.
It is well known that nonionic surfactant is characterised by hydrophobic group and organic hydrophilicity group being present, and And generally by the condensation of organic aliphatic series or alkyl aromatic hydrophobic compound and oxirane (in nature to be hydrophilic) and Prepare.
Generally, nonionic surfactant is poly-alkoxylation lipophile, wherein desired hydrophil lipophil balance (HLB) It is by the way that hydrophily alkoxy is added into lipophilic moieties to obtain.Preferable nonionic surfactants are not wherein alkane Molal quantity of the alcohol with 9 to 20 carbon atoms and its alkylene oxide (with 2 or 3 carbon atoms) is 5 to 20 alkoxylate Alkanol.In such material, it is preferred to use wherein alkanol be with 9 to 11 or 12 to 15 carbon atoms fatty alcohol simultaneously And every mole containing 5 to 8 or 5 to 9 alkoxies those.Further preferably paraffinic base alcohol (such as from Huntsman or Sassol nonionic surfactant).
The example of such compound is that wherein alkanol has 10 to 15 carbon atoms and every mole contains about 5 to 12 Those of ethylene oxide group, such as NeodolTMFamily.These are the mixed of the higher aliphatic of average about 12 to 15 carbon atoms The condensation product of compound and about 9 moles of oxirane.The higher alcohol is primary alkanol.
Another subclass for the alkoxy-based surface-active agent that can be used contains the accurate of alkoxy-based surface-active agent Alkyl chain length rather than the distribution of its alkyl chain.Generally, these are referred to as close limit alcoxylates.These example includes NeodolTMThe surfactant of -1 series.
Other useful nonionic surfactants with from BASF with trade mark PlurafacTMThat sells is commercial known The nonionic surfactant of classification represents.PlurafacTMIt is high straight chain alcohol and oxirane and the mixture of expoxy propane Reaction product, the combination chain containing oxirane and expoxy propane, by hydroxy-end capped.Example includes and 6 moles of ethylene oxide With the C13-C15 fatty alcohols of 3 mol propylenoxies condensation, the C13- being condensed with 7 mol propylenoxies and 4 moles of ethylene oxide C15 fatty alcohols, the C13-C15 fatty alcohols being condensed with 5 mol propylenoxies and 10 moles of ethylene oxide, or any of the above described mixing Thing.
Another group of nonionic surfactant can be used as DobanolTMCommercially available, it is that there is every mole of fatty alcohol average 7 to rub The ethoxylation C12-C15 fatty alcohols of your oxirane.
Nonionic surfactant can be had as unique surfactant according to the composition of the present invention.Therefore it is excellent What is selected is the non-ionic surface active of nonionic surfactant, more preferably 3 to 6 weight %s of the composition with 2 to 8 weight % Agent.
Or the surfactant according to present in the composition of the present invention can be individually ethoxylation anion table Face activating agent.This surfactant can be with normal chain or branch containing rudimentary ethyoxyl (with two or three carbon atoms) Alkyl group.The formula of such surfactant is RO (C2H4O)xSO3 -M+, wherein R is saturation or undersaturated has 10 to 22 The alkyl chain of individual carbon atom, M be so that compound for water miscible cation, particularly alkali metal, ammonium or substituted ammonium sun from Son, and x average out to 1 to 15.Preferably, R is the alkyl chain with 12 to 16 carbon atoms, and M is sodium, and x is averagely 1 to 3, More preferably x is 1.Particularly preferably ethoxylation anion surfactant is sodium laureth sulfate (SLES).It is the moon The sodium salt of osmanthus base ether sulfonic acid, wherein mainly, every mole of average 1 to 7 mole oxirane ethyoxyl of C12 lauryls alkyl Change.
The other examples for the suitable ethoxylation anion surfactant that can be used according to the present invention are C12-C15 Alkyl or primary alkyl triethoxy sodium sulfate salt；Positive decyl diethoxy sodium sulfate salt；C12 primary alkyl diethoxy ammonium sulfate Salt；C12 primary alkyl triethoxy sodium sulfate salts；C15 primary alkyl tetraethoxy sodium sulfate salts；Mix the positive primary alkyl mixing of C14-15 Three and tetraethoxy sodium sulfate salt；The ethoxylated sulfate salt of stearyl five；With the mixing positive primary alkyl triethoxy sulfuric acid of C10-18 Sylvite.
When according to the present invention composition include the nonionic surfactant and the ethoxylation anionic surface During the mixture of activating agent, the amount of the nonionic surfactant and the amount of the ethoxylation anion surfactant Ratio is 1:0.2 to 1:In the range of 2 parts by weight.
Organic acid
Include at least one of 0.5 weight % to 5 weight % according to the composition of the present invention has 2 to 5 at 20 DEG C PKa organic acid.The amount of preferably organic acid is 0.5 to 3 weight %.
Any organic acid can be used, as long as its pKa at 20 DEG C is 2 to 5.Preferably, organic acid is glycolic, lemon Lemon acid, maleic acid or lactic acid or its mixture.Mixture can have two or more in these acid.
Unneutralized aliphatic acid
It is also at least one unneutralized at 20 DEG C with 0.5 weight % to 5 weight % according to the composition of the present invention Aliphatic acid with the pKa more than 5.Unneutralized aliphatic acid provides the additional benefit of gelling and structuring.
The term pKa for being related to aliphatic acid is expounded adequately.For example, it may be referred to Journal of Colloid and Scientific publications in Interface Science 256,201-207 (2002), entitled " Effect of Degree, Type, and Position of Unsaturation on the pKa of Long-Chain Fatty Acids”.The publication is special Do not point out, stearic pKa is 10.15, and the pKa of oleic acid is 9.85.
Any aliphatic acid is suitable, including but not limited to laurate, myristic acid, palmitic acid, stearic acid, oleic acid, Asia Oleic acid, leukotrienes and its mixture, those aliphatic acid of crisp solid are not preferably formed at room temperature.Usually complex mixture The aliphatic acid that can naturally obtain be also suitable (such as tallow, cocounut oil and palm kernel fatty acid).Preferable aliphatic acid is oil Acid, because it is liquid at room temperature, and its C18 chains help to induce lamellar phase.
Technical grade distillation fatty acid distribution of coconut oil is the fatty acid mixt containing C8 acid to C18 aliphatic acid.Equally, technical grade oil Acid is that have C14 acid to the fatty acid mixt of C18 aliphatic acid.The difference of long alkyl chains in such fatty acid mixt The Van der Waals interaction between fatty acid molecule can be weakened, and this can reduce pKa compared with the aliphatic acid of pure form.
The amount of unneutralized aliphatic acid depends on the amount and type of existing surfactant.Preferably unneutralized aliphatic acid Amount be 0.5 weight % to 6 weight %, more preferably 0.5 weight % to 5 weight %.
Water-insoluble fatty acid ester
0.5 weight % to 10 weight % water-insoluble fatty acid ester is included according to the composition of the present invention.Preferably Water-insoluble fatty acid ester is methyl laurate, ethyl laurate or lauryl laurate, isopropyl stearate, and myristic acid is different Propyl ester, methyl myristate, ethyl myristate or butyl myristate, methyl hexadecanoate, ethyl palmitate, palmitic acid isopropyl Ester, butyl palmitate or octyl palmitate, linoleic acid isopropyl ester, methyl oleate, ethyl oleate or oleic acid stearyl ester, acetic acid bay Ester, at least one of caproic acid lauryl or Lauryl lactate.Have determined that what addition fatty acid ester caused greasiness removal enters one Step improves.Further preferably the ester be methyl laurate, methyl oleate, butyl laurate or isopropyl myristate or its Mixture.
Moreover it is preferred that according to the pH of the composition of the present invention in the range of 2 to 5.
Further surfactant
The composition of the present invention can be further contained in other surfactants outside aforementioned surfactants.So And such additional surfactants may be on the viscometric properties (profile) of composition without influence or with limited Influence.The composition of the present invention can include lives selected from anion surfactant, amphoteric surfactant, amphion surface The further surfactant of property agent and combinations thereof.Cationic surfactant is not preferred.
The example for being suitable including through such further surfactant in the present invention is found in " Surface Volume 1, Schwartz＆Perry, Interscience1949, volume 2 of Active Agents ", Schwartz, Perry＆ Berch, Interscience 1958；" the McCutcheon' that Manufacturing Confectioners Company are published S Emulsifiers and Detergents " current version；Or " Tenside-Taschenbuch ", H.Stache, second Version, Carl Hauser Verlag, 1981.
Other optional members
The composition of the present invention can optionally include other compositions, such as aromatic, preservative and colouring agent, foam promote Enter agent, preservative (such as bactericide), pH buffer, polyeletrolyte and antioxidant.
Fabric
Fabric can be any fabric (referred to herein as textile/cloth), such as cotton (woven, knitting and cowboy Cloth), it is polyester (woven, knitting and microfibre), nylon, silk, polyester cotton (polyester/cotton blend), polyester spandex, cotton spandex, viscous Glue artificial silk, acrylic fiber or wool.According to the compositions and methods of the invention particularly suitable for hydrophilic fabricses, and more Particularly suitable for cotton or polyester cotton.It is therefore preferable that hydrophilic fabricses are cotton or polyester cotton.
Other fabrics that can be processed include other synthesis and natural fabric.Contemplate this method and can be used for processing in family The clothing and other bedding and clothing and clothes of typical washing load are formed in laundry.The family expenses material that can be processed includes but unlimited In bedcover, blanket, carpet, curtain and furnishings.
Spot
Spot can be any oil-dirt or sebum spot.Therefore, in the preferred embodiment of method, the dye of fabric Dirty part basically comprises oiliness or sebum spot.They are mainly solid in nature, and such spot is usual Contacted during the normal use of fabric with fabric.Non-limiting examples include tomato oil spot, curry in oil spot, dirty machine oil Derive spot with sebum.
The purposes of composition and method
In another aspect, aqueous laundry pretreatment compositions as claimed in claim 1 are disclosed, it is used to be related to use The cotton or the fabric laundering process of polyester bafta that oiliness or sebum spot are stained, to provide at least the one of decontamination index (SRI) The increase of individual unit.Term SRI is well-known to those skilled in the art, and is widely used in patent and non-patent technology document In.Substantially, SRI indicates the effect of any laundry/laundry treatment compositions.The index is bigger, and composition is better.
According to further aspect, the aqueous laundry pretreatment compositions of first aspect are disclosed dirty with oiliness or sebum Dye the increased purposes at least one unit that decontamination index (SRI) is provided on the cotton or polyester bafta of dirt.
According to another aspect, disclose from the method stained fabric and remove oiliness or sebum spot, described in it includes making Stain the step of part of fabric contacts with the composition of 0.5ml to 5ml first aspect, followed by with aqueous laundry washing lotion The fabric for cleaning contact is either dry-cleaned.
Methods described preferably includes Aqueous wash process.Staining fabric can be soaked according to composition of the invention In, or alternatively, composition can be applied to stain on fabric in the form of pure or dilution.Alternately or in addition, Pre-treatment step can include the step being immersed in base material in the aqueous solution of added treatment compositions.
The second step of the method for the present invention can be that " master " washes, and can be washing in manual washing process or machine Wash.Second step can use any suitable detergent composition.Preferably, this detergent composition includes one or more Surfactant and/or other functional components.
Preferably, method of the invention needs the duration less than 90 minutes, more preferably less than 60 minutes and most preferably Less than 30 minutes.In embodiment is pre-processed, pre-treatment step preferably needs to be less than 5 minutes and more preferably less than 2 minutes.
Preferably, pretreatment compositions are that environmental condition is active (ambient-active).Correspondingly, Aqueous wash mistake Therefore institute's having time in washing process (but excluding drying) is less than 40 DEG C and preferably shorter than 30 to the temperature of the washing lotion step of journey DEG C and more preferably less than 25 DEG C and more preferably lower than or equal to 22 DEG C, even more preferably from 15 DEG C or lower.
Specific examples below further illustrates the present invention, but the invention is not restricted to this.
Embodiment
Embodiment 1：The increase for the decontamination index that composition within the present invention with outside provides
Table 1 shows some in important parameter/variable related to embodiment 1, followed by term SRI some solutions Release.
Table 1
Determine SRI program：
SRI is measuring of being removed of how much spots in washing process on textile.Can be by reflectometer according to spot Difference (the Δ E* for providing each spot) between clean cloth measures the intensity of any spot.SRI is defined as Δ E* simultaneously It is calculated as below：
L*, a* and b* are the coordinates of CIE 1976 (L*, the a*, b*) color space determined using standard reflection meter.Can be with Δ E* is measured before and after spot is washed, to provide AE*bw (before washing) and AE*aw (after washing).
SRI is the 100 complete removals for meaning spot.Δ E after washing is clean (unwashed) fabric and washing The difference of L a b color spaces between spot afterwards.Therefore, the Δ E after washing is zero spot for meaning to be completely removed.Cause This, SRI aw (aw：After washing) 100 to be the spot removed completely.Clean (or untapped) fabric is not washed " absolute standard ".For each experiment, it refers to and is applied in the fabric identical fiber bale of spot.Therefore, it is in L a b Point in color space keeps constant.
For SRI measure, standard scheme, referred to as Tergometer (also referred to as Tergotometer) washing side are used Case.
The Tergometer washings scheme has steps of：
1. measure the color of the spot on textile cloth (before washing).
2. open Tergometer and set 30 DEG C of temperature.
3. the water of hardness, is heated to 30 DEG C, 10 minutes needed for adding.
4. preparation is added in each tank, then stirred 1 minute with 100rpm
5. sample will be stained and ballast is added in each tank.
6. starting to wash, stirred, and washed 12 minutes with 100rpm.
7. rinsed 2 minutes with fresh water (26 °F of H).
8. repeat to rinse.
9. it is dried overnight in the dark.
10. spot reading after pair washing.
The details for preparing and then carrying out the composition of SRI researchs are displayed in Table 2.
Table 2
Note：In addition to A, the pH of all above-mentioned compositions is in the range of 2 to 5.
Note：Composition G in addition to the present invention, although showing other situation in table.
The as shown by data provided in table 2, the SRI values of composition in addition to the present invention are less than the combination within the present invention The SRI that thing provides.Composition H also shows the further technique effect of water-insoluble fatty acid ester, and it is bay in this case Sour methyl esters.
Embodiment 2：The comparison of citric acid and sodium citrate
Following two compositions are prepared in the same manner as described above and for testing each other.The purpose of the experiment is hair Existing citric acid showed compared with citrate (i.e. sodium citrate) how.As a result also it is summarised in table 3.
Table 3
Composition/weight % I J
Sodium laureth sulfate, 2EO 10 10
Citric acid -- 1
Sodium citrate 1 --
The fatty acid distribution of coconut oil of distillation 5 5
Water 84 84
pH 5.9 2.5
For dirty machine oil (DMO) SRI 82 85
Data in table 3 clearly illustrate dramatically increasing for the SRI brought by citric acid.Models of the composition I in the present invention Outside enclosing.Had the technical effect that as citric acid heretofore unknown.Upper table additionally confirms pH technique effect.
Embodiment 3：The SRI of various fatty acid esters
The details of composition and the SRI values observed are summarized in table 4.
Table 4
The every kind of ester of data confirm that in table 4 brings dramatically increasing for SRI.The data, which further enhance, can pass through the present invention The technique effect realized of mode because for involved ester, it provides significant formulation flexibility.Composition O is at this Outside invention.
Embodiment 4：The SRI obtained by the various organic acids with 2 to 5 pKa
The details of composition and the SRI values observed are summarized in table 5.
Table 5
Data in table 5 clearly illustrate dramatically increases SRI by various acid.The data, which further enhance, can pass through this The technique effect that the mode of invention is realized, because for the involved organic acid with 2 to 5 pKa, it provides significant Formulation flexibility.

Claims (13)

1. a kind of aqueous laundry pretreatment compositions, it is included：
(i) 0.5 weight % to 15 weight % surfactant, the glass or plastic containers or ethoxy Base anion surfactant or its mixture；
(ii) 0.5 weight % to 8 weight % at least one unneutralized aliphatic acid at 20 DEG C with the pKa more than 5；
(iii) 0.5 weight % to 5 weight % at least one organic acid with 2 to 5 pKa at 20 DEG C, and
(iv) 0.5 weight % to 10 weight % water-insoluble fatty acid ester.
2. aqueous laundry pretreatment compositions as claimed in claim 1, wherein the organic acid is glycolic, citric acid, horse Come sour or lactic acid or its mixture.
3. aqueous laundry pretreatment compositions as claimed in claim 1 or 2, wherein the water-insoluble fatty acid ester is bay Sour methyl esters, ethyl laurate or lauryl laurate, isopropyl stearate, isopropyl myristate, methyl myristate, Pork and beans Cool acetoacetic ester or butyl myristate, methyl hexadecanoate, ethyl palmitate, isopropyl palmitate, butyl palmitate or palmitic acid Monooctyl ester, linoleic acid isopropyl ester, methyl oleate, ethyl oleate or oleic acid stearyl ester, lauryl acetate, caproic acid lauryl or the lactic acid moon At least one of osmanthus ester or its mixture.
4. the aqueous laundry pretreatment compositions as any one of preceding claims 1 to 3, wherein when the composition bag During mixture containing the nonionic surfactant and the ethoxylation anion surfactant, the non-ionic surface The ratio of the amount of activating agent and the amount of the ethoxylation anion surfactant is 1:0.2 to 1:In the range of 2 parts by weight.
5. the aqueous laundry pretreatment compositions as any one of preceding claims 1 to 4, wherein the pH of the composition For 2 to 5.
6. the aqueous laundry pretreatment compositions as any one of preceding claims 1 to 5, wherein the composition is to cotton Or oiliness or sebum the spot offer deposited on polyester bafta is according at least one of the decontamination index (SRI) of reflectometer method The increase of unit.
7. aqueous laundry pretreatment compositions as claimed in claim 1, it is used to be related to what is stained with oiliness or sebum spot Cotton or the fabric laundering process of polyester bafta, to provide at least one list of the decontamination index (SRI) according to reflectometer method The increase of position.
8. aqueous laundry pretreatment compositions as claimed in claim 1 are in the cotton or polyester cotton stained with oiliness or sebum spot The increased purposes of at least one unit of decontamination index (SRI) according to reflectometer method is provided on fabric.
9. purposes as claimed in claim 8, wherein the oil-dirt is the fabric and dirty machine oil, mechanical grease or edible The result of at least one of oil contact.
10. it is a kind of from the method stained fabric and remove oiliness or sebum spot, it include making the part for staining fabric and The step of 0.5ml to 5ml composition as claimed in claim 1 contact, followed by clean contact with aqueous laundry washing lotion Fabric is either dry-cleaned.
11. method as claimed in claim 10, wherein the aqueous laundry washing lotion includes 1 to the 5g/ laundry detergent group risen Compound.
12. method as claimed in claim 11, wherein washing lotion:The ratio of cloth is in the range of 30 to 100 parts by weight.
13. the method as any one of preceding claims 10 to 12, wherein cleaning the step of the fabric of the contact It is rapid to include the fabric of the contact soaking 2 to 30 minutes sections in the water comprising the laundry detergent composition The step of.
CN201680035384.8A 2015-06-19 2016-05-31 Laundry pretreatment compositions Expired - Fee Related CN107787356B (en)

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BR112017026647A2 (en) 2018-08-28
EP3310889B1 (en) 2019-08-07

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