EP0990020B1 - Procede de lavage du linge, en particulier de vetements de travail - Google Patents

Procede de lavage du linge, en particulier de vetements de travail Download PDF

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Publication number
EP0990020B1
EP0990020B1 EP98937476A EP98937476A EP0990020B1 EP 0990020 B1 EP0990020 B1 EP 0990020B1 EP 98937476 A EP98937476 A EP 98937476A EP 98937476 A EP98937476 A EP 98937476A EP 0990020 B1 EP0990020 B1 EP 0990020B1
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EP
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Prior art keywords
component
washing
groups
weight
water
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Expired - Lifetime
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EP98937476A
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German (de)
English (en)
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EP0990020A1 (fr
Inventor
Thomas Merz
Christine Schnepf
Khalil Shamayeli
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Ecolab GmbH and Co OHG
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Ecolab GmbH and Co OHG
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/364—Organic compounds containing phosphorus containing nitrogen
    • 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
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/06—Ether- or thioether carboxylic acids
    • 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
    • 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
    • C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
    • 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
    • C11D1/126—Acylisethionates
    • 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
    • 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
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • 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
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/12—Soft surfaces, e.g. textile
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/48—Regeneration of cleaning solutions

Definitions

  • the present invention relates to a method for washing laundry, in particular Workwear, where the laundry is in a usual washing machine for commercial laundries with a product combination of one Alkali and a surfactant component is washed and the waste water over a membrane filtration system is processed.
  • the present invention was based on the object of a method for washing of laundry, especially workwear, in a usual Washing machine for commercial laundries and subsequent processing to provide the waste water via membranes, in which the laundry with a product combination of surfactant and alkali components is washed, which has essentially the same cleaning effect as that from the
  • Mean known in the art for wastewater treatment Membrane filtration systems do not interfere with the implementation of the Water treatment, especially not to block the membranes and thus leads to a reduction in the flow rate. What was also wanted even an increase in the flow rate for wastewater treatment the flow of pure water.
  • DE-A-39 30 791 relates to a phosphate-free textile detergent which contains 8 to 22% by weight of anionic surfactants, 5 to 18% by weight of nonionic surfactants, 10 to 75% by weight of washing alkalis from the group of the carbonates and silicates and 6 to 12% by weight of an alkali metal salt of a linear polymer or copolymer of acrylic acid, methacrylic acid and maleic acid.
  • suitable anionic surfactants are C 9-13 alkylbenzenesulfonates, and nonionic surfactants which are ethoxylated C 10-20 alcohols having 2 to 10 EO groups.
  • Preferred washing alkalis are sodium bicarbonate and carbonate, also sodium metasilicate and sodium water glass. Furthermore, the use of copolymers of acrylic acid and maleic acid is preferred.
  • DE-A-43 29 064 describes a builders component for washing and Described cleaning agents based on crystalline layered silicates and Impregnation agent based.
  • impregnating agents come ethoxylated nonionic Surfactants, mixtures of nonionic and anionic surfactants as well Foam inhibitors such as silicone oils and paraffin oils can be considered.
  • the method according to the invention can be used in conventional washing machines for commercial Laundries are carried out. There are none when washing special measures required.
  • the washing alkali component (A) used according to the invention can be used both in both solid and liquid.
  • Component (A) is more solid Form before, it preferably contains anionic surfactant and water-soluble silicate (A1) and a complexing agent (A3). If the washing alkali component in When added in liquid form, it preferably contains alkali hydroxide (A2), in particular as an aqueous solution, and a complexing agent (A3).
  • anionic surfactants customary in the field of washing and cleaning agents can be used as the anionic surfactant, such as, for. B. C 8 -C 18 alkyl sulfates, C 8 -C 18 alkyl ether sulfates, C 8 -C 18 alkanesulfonates, C 8 -C 18 ⁇ -olefin sulfonates, sulfonated C 8 -C 18 fatty acids, C 8 -C 18 -Alkylbenzenesulfonates, sulfonic succinic acid mono- and -di-C 1 -C 12 alkyl esters, C 8 -C 18 alkyl polyglycol ether carboxylates, C 8 -C 18 -N-acyl taurides, C 8 -C 18 -N sarcosinates, C 8 -C 18 Alkyl isethionates and mixtures of the foregoing.
  • the anionic surfactants are preferably in an amount of 1 to 10% by weight, particularly preferably in an amount of 2 to 6 wt .-%, based on the Washing alkali component A, included.
  • silicates used in the field of detergents and cleaning agents can be used as water-soluble silicates.
  • the silicates not only have the function of a washing alkali, ie to increase the pH, but also have builder properties.
  • Both crystalline and amorphous silicate can be considered as water-soluble silicates.
  • Particularly suitable are crystalline, layered sodium silicates of the general formula NaMSi x O 2x + 1 .yH 2 O, where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20 and preferred values for x is 2, 3 or 4.
  • Such crystalline layered silicates are described, for example, in European patent application EP-A-0 164 514.
  • Preferred crystalline layered silicates of the formula given are those in which M represents sodium and x assumes the values 2 or 3.
  • both ⁇ - and ⁇ -sodium disilicates Na 2 Si 2 O 5 .yH 2 O are preferred.
  • Amorphous sodium silicates with a modulus Na 2 O: SiO 2 of 1: 2 to 1: 3.3, preferably 1: 2 to 1: 2.8 and in particular 1: 2 to 1: 2.6 are also suitable.
  • Amorphous sodium silicates which are delayed in dissolution and have secondary washing properties are particularly preferably used.
  • the delay in dissolution compared to conventional amorphous sodium silicates can be caused in various ways, for example by surface treatment, compounding, compacting / compression or by overdrying.
  • the term “amorphous” is also understood to mean “X-ray amorphous”.
  • silicates in X-ray diffraction experiments do not provide sharp X-ray reflections, as are typical for crystalline substances, but at most one or more maxima of the scattered X-rays, which have a width of several degree units of the diffraction angle.
  • it can very well lead to particularly good builder properties if the silicate particles deliver washed-out or even sharp diffraction maxima in electron diffraction experiments. This is to be interpreted as meaning that the products have microcrystalline areas of size 10 to a few hundred nm, values up to max. 50 nm and in particular up to max. 20 nm are preferred.
  • Such so-called X-ray amorphous silicates which also have a delay in dissolution compared to conventional water glasses, are described, for example, in German patent application DE-A-44 00 024. Compacted / compacted amorphous silicates, compounded amorphous silicates and over-dried X-ray amorphous silicates are particularly preferred.
  • the water-soluble silicates are preferably in an amount of 10 to 60 % By weight, in particular 20 to 50% by weight, based on component A, are present.
  • KOH and NaOH are particularly suitable as alkali metal hydroxides, where the latter is particularly preferred.
  • the alkali metal hydroxides can be used in an amount of 10 to 50 wt .-%, preferably 15 to 30 wt .-%, in the Component A may be included, with liquid preparations, the Alkali hydroxide usually as an aqueous solution in a concentration of 10 to 50 wt .-% is present.
  • component A contains one or more complexing agents.
  • complexing agents for detergents and cleaning agents Suitable complexing agents are used, in particular salts of Polyphosphonic acids, salts of organic polycarboxylic acids, such as citric acid, Carboxyaspartic acid and nitrilotriacetic acid and mixtures of the foregoing be considered.
  • Preferred salts are polyphosphonic acids the neutral reacting sodium salts of 1-hydroxyethane-1,1-diphosphonic acid, Diethylenetriaminepenta-methylenephosphonic acid or ethylenediaminetetramethylenephosphonic acid.
  • the complexing agent is preferably in Amounts from 0.1 to 4.0 wt .-%, in particular from 0.3 to 2.0 wt .-% used.
  • N- (2-hydroxyethyl) -, NN-bis-methylenephosphonic acid have proven to be particularly suitable compounds (in trade, for example, under the name Cublen® R 60 available from Zschimmer & Schwarz) and the sodium salt carboxyaspartic acid (commercially, for example, under the name Nervanaid® GBS 5 available from Rhône-Poulenc).
  • Component A can also contain other water-soluble ingredients Builders, such as phosphates, and soda may be included.
  • Builders such as phosphates, and soda may be included.
  • the sodium salts of the orthophosphates, the pyrophosphates, are particularly suitable as phosphates and particularly the tripolyphosphates.
  • Your salary is generally not more than 60% by weight, preferably from 10 to 60% by weight, in particular from 15 to 40% by weight, based in each case on the washing alkali component A.
  • soda Na 2 CO 3
  • Soda can be present in an amount of up to 50% by weight, preferably from 10 to 50% by weight, in particular from 15 to 30% by weight, based in each case on component A.
  • washing alkali component (A) can be known commonly used in such washing alkali compositions Contain additives such as co-builders, optical brighteners, colors and fragrances, if necessary, small amounts of nonionic surfactants and small amounts of Neutral salts such as sulfates and chlorides in the form of their sodium or potassium salts, provided that these do not impair the positive properties of the process.
  • Component A is therefore just like component B of the invention Process, preferably free of cellulose derivatives, such as Carboxymethyl cellulose, hydroxyalkyl cellulose and alkyl cellulose.
  • C 8-18 alcohol alkoxylates (B1) are used as nonionic surfactants of component B.
  • the C 8-18 alcohol alkoxylates are preferably derived from primary, saturated alcohols having 12 to 18 carbon atoms, in which the alcohol radical can be linear or methyl-branched in the 2-position or can contain linear and methyl-branched radicals in the mixture, as is customary are present in oxo alcohol residues.
  • Mixtures are preferably used as primary, saturated and linear alcohols, such as those found in alcohol mixtures of native origin, e.g. by synthesis using the Ziegler method or from native fatty acids can be obtained by reduction.
  • the oxo alcohols are usually a mixture of linear and 2-position methyl-branched alkanols, in which the proportion of linear alcohols in general predominates.
  • the alcohol residues have 12 to 15, preferably 13 to 14 Carbon atoms.
  • Technical mixtures can also have proportions of 11 to Contain 15 carbon atoms.
  • the C 8-18 alcohol alkoxylates have at least 5, particularly preferably at least 7, alkoxy groups.
  • Component B1 contains ethylene oxide residues (EO) and / or popylene oxide residues (PO) as alkoxy groups. If component B1 contains only EO groups, the degree of ethoxylation is at least 7. If both EO groups and PO groups are present, the number of EO groups is preferably 4 to 8 and the number of PO groups 2 to 8 , in particular 3 to 4.
  • the EO groups and PO groups can be randomly distributed, but preference is given to using compounds in which the alcohol radical is first completely ethoxylated and then propoxylated thereon, as is represented by the schematic formula R- (EO ) x - (PO) y is reproduced. In this formula, R stands for the alcohol residue, x for the number of EO groups and y for the number of PO groups.
  • the surfactant component B contains the fatty alcohol alkoxylate preferably in an amount of 50 to 90 wt .-%, based on component B, and between 10 and 50% by weight of further customary constituents, which increase the washing performance and the wastewater treatment over Do not negatively affect membranes.
  • component B can preferably contain one or more C 1-4 alkyl alcohols, which are preferably present in an amount of 2 to 10% by weight, based on component B.
  • C 1-4 alkyl alcohols methanol and ethanol are particularly preferred.
  • the washing performance in the process according to the invention can be increased further, by the surfactant component B one or more fatty alcohols as a detergency booster be added.
  • Fatty alcohols are particularly suitable as fatty alcohols with 8 to 18 carbon atoms or mixtures thereof, of course occurring fats and oils can be obtained.
  • the fatty alcohols can be present in an amount of up to 20% by weight, preferably 5 up to 20 wt .-%, particularly preferably from 10 to 15 wt .-%, each based on the surfactant component B may be included.
  • the surfactant component B can be anhydrous or up to 20% by weight, preferably Contain 5 to 15 wt .-% water.
  • the surfactant component B For dosing and storage stability the water content only plays a subordinate role. Since it is non-ionic surfactants B1 are technical products that are used in different quality and purity can be received and offered, it can occur that the concentrates when using certain technical Product batches become cloudy or also form gel-like precipitates. This Turbidity and precipitation become reliable through the addition of water avoided. Additions of 5 to 10% by weight are generally sufficient for this.
  • the funds may contain other additives, provided that it is guaranteed that these are soluble and do not change the advantageous properties of the concentrates. These include in particular dyes and fragrances with which the own color or the inherent smell of the mixtures is masked. Other solvents can Although they are always added, they are generally not required.
  • the surfactant component B usually behaves like a Newtonian liquid, i.e. their viscosity is independent of the shear forces. Such agents are therefore easy to promote and dose, with their Viscosity changes relatively little depending on the temperature. she are repeated even after several months of storage in a climate cabinet changing temperatures between minus 10 ° C and plus 40 ° C they do not tend to segregate.
  • the concentrates are at least up to 0 ° C a liquid consistency. Between minus 10 ° C and 0 ° C they can be in liquid or solid form. Even those in solid form at these temperatures Concentrates again give clear and homogeneous when thawed Liquids. These properties make them particularly suitable for one fully automatic dosing in commercial laundries.
  • Suitable product additives can be optical brighteners, enzymes, bleaches from the class of per-compounds, usually together with activators are used, active chlorine compounds as well as colors and fragrances his.
  • the method according to the invention is particularly suitable for washing strongly dirty workwear and is characterized by a high washing power against soiling containing mineral oil.
  • the laundry is at least in the last rinsing bath a quaternary ammonium compound was added.
  • quaternary ammonium compounds any ammonium compounds are suitable which the Do not block the membrane during wastewater treatment, where didecyldimethylammonium chloride has proven to be particularly suitable.
  • the quaternary Ammonium compound is preferably the last rinse in an amount up to 10 g / l, particularly preferably from 0.05 to 2 g / l, in particular from 0.1 to 1 g / l rinsing water added.
  • Waste water obtained is carried out according to the invention processed by passing it through a membrane filtration system.
  • a membrane filtration system In a preferred one Embodiment is the wastewater by several in a row arranged membranes directed. It is also possible to use the wastewater as well to pass pre-cleaned wastewater through a membrane several times. The number of successively arranged membranes are usually dependent on determines the amount of water to be processed per unit of time and depends on the Size of the membrane.
  • the wastewater can be passed through the membranes for as long the membranes are circulated until the water has sufficient Purity. To the cost of the overall washing process, especially the Lowering the need for water can do so through the membranes purified water depending on the requirements for the prewash and depending of the quality of the membrane also for the clear wash and / or for the first or second rinsing bath can be used.
  • the residue obtained in membrane filtration can be known per se Way of waste disposal.
  • a wash liquor containing 0.33 g / l of a washing alkali component A and 0.16 g / l of a surfactant component B was used to wash workwear.
  • These products had the following composition (in% by weight):
  • Sodium silicate (SiO 2 : Na 2 O 1: 1): 47.0
  • the wastewater generated after the washing process was reduced to a pH set at 8 and at a temperature of approx. 45 ° C by a Polypropylene membrane from Microdyn (pore diameter 0.2 ⁇ m) filtered.
  • the inlet pressure was 0.8 bar and the outlet pressure was 0.4 bar.

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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)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (10)

  1. Procédé de lavage du linge dans un lave-linge usuel pour les blanchisseries industrielles, en utilisant une combinaison de produits constituée d'au moins deux composants:
    (A) un composant détergent-alcalin contenant
    (A1) un tensioactif anionique et un silicate soluble dans l'eau, et/ou
    (A2) un hydroxyde de métal alcalin et
    (A3) un agent complexant, et
    (B) un composant tensioactif contenant un tensioactif non ionique sélectionné parmi le groupe constitué d'un alcoxylate d'alcool gras en C8-C18 avec au moins 5 groupes alcoxy, d'un éthoxylate d'alcool gras en C8-C18 avec au moins 7 groupes éthoxy, d'un éthoxylate/propoxylate d'alcool gras en C8-C18 dont la molécule comporte au moins 4 groupes éthoxy et au moins 2 groupes propoxy et de n'importe quels mélanges des composés ci-dessus, les eaux usées étant ensuite épurées par filtration membranaire, le taux du débit étant réduit de moins de 10 % sur un temps de marche de 120 heures.
  2. Procédé selon la revendication 1, caractérisé en ce que sont contenus comme tensioactif anionique, des alkylsulfates en C8-C18' des alkyléthersulfates en C8-C18' des alcanesulfonates en C8-C18' des sulfonates α-oléfiniques en C8-C18' des acides gras sulfonés en C8-C18' des alkylbenzènesulfonates en C8-C18' des mono- et des dialkylesters en C1-C12 d'acide sulfosuccinique, des alkylpolyglycoléthercarboxylates en C8-C18' des N-acyltaurides en C8-C18' des N-sarcosinates en C8-C18' des alkyliséthionates en C8-C18' ainsi que des mélanges des composés ci-dessus.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le silicate soluble dans l'eau est sélectionné parmi le groupé se composant des silicates de sodium lamellaires cristallins de la formule générale NaM-SixO2x+1·yH2O, dans laquelle M représente le sodium ou l'hydrogène, x correspond à un nombre compris entre 1,9 et 4 et y est un nombre de 0 à 20, et des silicates de sodium amorphes présentant un module Na2O:SiO2 de 1:2 à 1:3,3, ainsi que des mélanges quelconques des composés ci-dessus.
  4. Procédé selon une des revendications 1 à 3, caractérisé en ce que l'agent complexant est sélectionné parmi les acides polyphosphoniques, les sels de ceux-ci et les sels d'acides polycarboxyliques organiques.
  5. Procédé selon la revendication 4, caractérisé en ce que l'agent complexant est sélectionné parmi l'acide 1-hydroxy-éthan-1,1-disphosphorique, l'acide diéthylènotriaminopentaméthylènephosphonique, l'acide éthylène-diaminotétraméthylénephosphonique, l'acide N-(2-hydroxyéthyl)-NN-bis-méthylènephosphonique et les sels de ceux-ci, ainsi que l'acide carboxyasparagique et les sels de celui-ci.
  6. Procédé selon une des revendications 1 à 5, caractérisé en ce que l'on utilise comme tensioactif non ionique un mélange renfermant
    (a) 20 à 80 % en poids d'alcoxylates d'alcools, dérivés d'alcools primaires, linéaires ou à ramification méthyle en position 2, en C12-C18, comportant en moyenne au moins 5 groupes d'oxyde d'éthylène (EO), et
    (b) 80 à 20 % en poids d'alcoxylates d'alcools dérivés d'alcools primaires, linéaires ou à ramification méthyle en position 2, en C12-C18 (oxyalcools) comportant en moyenne 4 à 8 groupes d'oxyde d'éthylène et 3 à 8 groupes d'oxyde de propylène (PO).
  7. Procédé selon une des revendications 1 à 6, caractérisé en ce que le composant B renferme (par rapport au composant B) 2 à 10 % en poids d'un ou de plusieurs alcools alkyliques en C1-C4.
  8. Procédé selon une des revendications 1 à 7, caractérisé en ce que le composant B renferme (par rapport au composant B) 5 à 20 % en poids d'un alcool gras en C8-C18.
  9. Procédé selon une des revendications 1 à 8, caractérisé en ce que les composants A et B sont exempts de dérivés cellulosiques.
  10. Procédé selon une des revendications 1 à 9, caractérisé en ce que le linge est rincé après le lavage, le dernier bain de rinçage étant additionné d'un composé d'ammonium quaternaire.
EP98937476A 1997-06-20 1998-06-12 Procede de lavage du linge, en particulier de vetements de travail Expired - Lifetime EP0990020B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19726287A DE19726287A1 (de) 1997-06-20 1997-06-20 Verfahren zum Waschen von Wäsche, insbesondere von Berufsbekleidung
DE19726287 1997-06-20
PCT/EP1998/003543 WO1998059025A1 (fr) 1997-06-20 1998-06-12 Procede de lavage du linge, en particulier de vetements de travail

Publications (2)

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EP0990020A1 EP0990020A1 (fr) 2000-04-05
EP0990020B1 true EP0990020B1 (fr) 2002-08-14

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Application Number Title Priority Date Filing Date
EP98937476A Expired - Lifetime EP0990020B1 (fr) 1997-06-20 1998-06-12 Procede de lavage du linge, en particulier de vetements de travail

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US (1) US6398820B1 (fr)
EP (1) EP0990020B1 (fr)
AT (1) ATE222284T1 (fr)
BR (1) BR9810220A (fr)
CA (1) CA2295015C (fr)
DE (2) DE19726287A1 (fr)
DK (1) DK0990020T3 (fr)
NO (1) NO996307D0 (fr)
PL (1) PL187141B1 (fr)
WO (1) WO1998059025A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061416A1 (de) 2000-12-09 2002-06-20 Henkel Ecolab Gmbh & Co Ohg Alkalische, wasserhaltige Paste
US7000437B2 (en) 2001-01-18 2006-02-21 Shell Oil Company System and method for economically viable and environmentally friendly central processing of home laundry
GB0400310D0 (en) * 2004-01-08 2004-02-11 Rhodia Consumer Specialities L Anti-incrustation agent
WO2005118760A1 (fr) * 2004-05-28 2005-12-15 Ecolab Inc. Composition savonneuse en pate compatible avec une membrane
CN104428404B (zh) 2012-07-13 2018-06-05 巴斯夫欧洲公司 烷氧基化非离子表面活性剂在含水膜清洁组合物中作为添加剂的用途
US9982220B2 (en) 2015-05-19 2018-05-29 Ecolab Usa Inc. Efficient surfactant system on plastic and all types of ware
PL240341B1 (pl) * 2018-03-20 2022-03-21 Przed Polaktiv Spolka Z Ograniczona Odpowiedzialnoscia Sposób prania tekstyliów bawełnianych i mieszankowych w pralnico-wirówce

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Publication number Priority date Publication date Assignee Title
IT1147874B (it) * 1982-04-30 1986-11-26 Colgate Palmolive Co Procedimento di lavaggio industriale e composizione
DE3413571A1 (de) 1984-04-11 1985-10-24 Hoechst Ag, 6230 Frankfurt Verwendung von kristallinen schichtfoermigen natriumsilikaten zur wasserenthaertung und verfahren zur wasserenthaertung
FR2599354B1 (fr) 1986-05-27 1988-08-26 Rhone Poulenc Spec Chim Cogranules silicate, silice, procede d'obtention et utilisation dans les compositions detergentes
DE3644808A1 (de) * 1986-12-31 1988-07-14 Henkel Kgaa Phosphatfreies waschmittel mit verringerter schaumneigung
DE3930791C2 (de) * 1989-09-14 2002-05-23 Rudolf Weber Phosphatfreies zeolith freies, wasserlösliches Textilwaschmittel
DE4029777A1 (de) 1990-09-20 1992-03-26 Henkel Kgaa Fluessige, nichtionische tensidkombination mit verbesserter kaeltestabilitaet
DE4329064A1 (de) * 1993-08-28 1995-03-02 Henkel Kgaa Gerüststoffkomponente für Wasch- oder Reinigungsmittel
DE4400024A1 (de) 1994-01-03 1995-07-06 Henkel Kgaa Silikatische Builder und ihre Verwendung in Wasch- und Reinigungsmitteln sowie Mehrstoffgemische für den Einsatz auf diesem Sachgebiet
DE19607800A1 (de) * 1996-03-01 1997-09-04 Henkel Ecolab Gmbh & Co Ohg Reinigungsmittel für Anlagen der Lebensmittelindustrie, seine Verwendung und Verfahren zum Reinigen dieser Anlagen
US5658870A (en) * 1996-09-26 1997-08-19 Leu; Shiow Jiuan Freida Composition of super molecule active solid cleaning agent

Also Published As

Publication number Publication date
DK0990020T3 (da) 2002-11-04
EP0990020A1 (fr) 2000-04-05
ATE222284T1 (de) 2002-08-15
US6398820B1 (en) 2002-06-04
CA2295015A1 (fr) 1998-12-30
DE59805198D1 (de) 2002-09-19
CA2295015C (fr) 2009-12-01
PL187141B1 (pl) 2004-05-31
NO996307L (no) 1999-12-17
NO996307D0 (no) 1999-12-17
BR9810220A (pt) 2000-08-08
WO1998059025A1 (fr) 1998-12-30
DE19726287A1 (de) 1998-12-24
PL337508A1 (en) 2000-08-28

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