EP0494797A2 - Entschweissen von Wolle - Google Patents

Entschweissen von Wolle Download PDF

Info

Publication number
EP0494797A2
EP0494797A2 EP92300244A EP92300244A EP0494797A2 EP 0494797 A2 EP0494797 A2 EP 0494797A2 EP 92300244 A EP92300244 A EP 92300244A EP 92300244 A EP92300244 A EP 92300244A EP 0494797 A2 EP0494797 A2 EP 0494797A2
Authority
EP
European Patent Office
Prior art keywords
wool
aqueous medium
detergent
temperature
treating
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Withdrawn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
EP92300244A
Other languages
English (en)
French (fr)
Other versions
EP0494797A3 (en
Inventor
Martin Concannon
Keith Robert Fraser Cockett
Raymond Edward Biddulph
Andrew Philip Parker
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.)
Ineos Silicas Ltd
Original Assignee
Joseph Crosfield and Sons Ltd
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 Joseph Crosfield and Sons Ltd filed Critical Joseph Crosfield and Sons Ltd
Publication of EP0494797A2 publication Critical patent/EP0494797A2/de
Publication of EP0494797A3 publication Critical patent/EP0494797A3/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
    • D01C3/00—Treatment of animal material, e.g. chemical scouring of wool

Definitions

  • This invention relates to the scouring of raw wool, ie wool which contains large quantities of wool grease, which wool is usually subjected to the scouring process before a carding operation.
  • Raw wool contaminants consist mainly of grease, suint and particulate soil.
  • Suint is mostly a mixture of inorganic salts from evaporation of sheep sweat.
  • the grease component is a very complex mixture containing fats, fatty acids and triglycerides.
  • the particulate soil is, for example, dust, dirt and skin debris. The contaminants tend to divide themselves into “easy-to-remove” and “hard-to-remove” contaminants; see B.O. Bateup, Proceedings of the CSIRO Division of Textile Industry, Symposium on Wool Scouring and and Worsted Carding: New Approaches (1986), page 8.
  • the aim of wool scouring is to reduce the "extractables" (contaminants that can be extracted into dichloromethane, DCM) to a level between 0.3-0.5% and at the same time provide a wool having good whiteness, ie a low degree of yellowness.
  • DCM dichloromethane
  • Raw wool is generally scoured by washing it in a hot solution of detergent to remove the contaminants followed by rinsing in slightly cooler water. The clean wool is then dried by passing it through a hot air dryer before being passed onto the next processing stage.
  • This scouring process is preferably carried out continuously by passing the wool through a series of "bowls".
  • wool passes from bowl to bowl in one direction, and liquor is pumped in the opposite direction.
  • the raw wool enters the first bowl, and becomes cleaner as it moves towards the last.
  • Clean water enters the last bowl and becomes dirtier as it moves towards the first.
  • Raw wool has a high level of contaminants (up to 30% by weight) and this raises significant effluent disposable problems.
  • Much of the recent work, especially in Australia has concentrated on producing more easily treated effluent rather than on improving the efficiency of the scouring process itself.
  • a review of this work has been published by J.R. Christoe and B.O. Bateup, Wool Science Review (1987), 64 , 25.
  • a conventional scouring system consists of two or three scouring bowls, followed by two or three rinse bowls, depending upon the numbers of bowls, typically 46, in the range.
  • the rate of water addition depends on the volume and type of wool being processed. Introduction of clean water dilutes the active material in the bowls, so addition of fresh detergent and any other chemicals present (see below) are made discontinuously by hand (for example, every half hour), or continuously by means of an automatic dosing pump.
  • the amount of detergent added to the various scouring bowls varies from high levels in bowl 1 to very low levels in bowl 3. This is because, as the wool becomes cleaner, less detergent is required to solubilise the contaminants.
  • a typical temperature for bowl 1 is in the region 65-70°C, so that the hot first bowl softens the grease and allows penetration of the grease droplets by the detergent. The temperature can then be gradually decreased on progression from bowl 3 (about 60°C) dropping to about 55°C for bowls 4 and 5.
  • scour liquor often contains free calcium and/or magnesium originally present in any of the water used for scouring, the suint salts and possibly lime deposited on the wool itself.
  • the wool may be so called “slipe” wool, or may be a blend containing such wool, this being wool removed from the hide of a dead sheep using lime. Often, a wool scourer will not know whether a particular batch to be scoured contains such slipe wool.
  • the builders assist in removal of such unwanted calcium and/or magnesium from the scour liquor, and from the surface of the wool.
  • Sodium sulphate is often used as a builder, but its value remains questionable where, as is usual, the detergents used are exclusively non-ionic.
  • Another builder which is often used is sodium carbonate, often in the form of soda ash. This does effectively remove calcium.
  • sodium silicate acts as a much better builder, but is highly alkaline and may cause wool damage if present at too high a concentration.
  • sodium hydroxide may be used as a builder, but with the same disadvantage; see B.O. Bateup, Textile Research Journal (January 1985), 55 , 50.
  • the best calcium binders are sodium tripolyphosphate (STP) and zeolites, but these are expensive in comparison with the builders mentioned above.
  • metal ion sequestrants which can also be called “builders”
  • EDTA ethylene diamine tetraacetic acid
  • NTA nitrilotriacetic acid
  • a conventional wool scouring system may utilise five bowls in the order: detergent, detergent, mild detergent (or rinse), rinse, rinse.
  • this system may utilise five bowls in the order: detergent, detergent, mild detergent (or rinse), rinse, rinse.
  • One such modification is known as multi-stage scouring in which, for a five bowl system, the order of the bowls is: detergent, rinse, detergent, rinse, rinse.
  • the role of the first bowl is to remove the particulate salts and the more easily removed grease and suint salts, while the second bowl, also at 65°C, continues to soften the wool grease before the wool is reintroduced to a detergent solution to effect removal of this grease. It is generally accepted that two rinse bowls are required at the end of the cycle, so the system is in practice applicable only to five or six bowl ranges.
  • suint bowl In one system, this consists merely of cold, or slightly warm water at a temperature well below the melting point of the wool grease; see for example, US-A-2552944.
  • the cold water which contains no additives merely removes suint, which itself has, in its own right, a detergent effect and allows this to contribute to removal of wool grease in the subsequent detergent stages.
  • a builder for example soda ash or sodium metasilicate, or a low concentration of a non-ionic, anionic or cold water laundry detergent; see C.A. Anderson et al, Proc. 7th Int. Wool Text Conf., Tokyo (1985) 5 , 255, and B.O. Bateup and J.J. Warner, Text. Res. J. (1986), 56 , 489.
  • a hot suint bowl which contains no chemicals.
  • the bowl order is thus: suint bowl, detergent, detergent, rinse, rinse.
  • the hot suint bowl is used to remove particulate soils and soluble suint salts. It also allows the wool grease to be softened by the hot water before coming into contact with the detergent in the main scouring bowl.
  • the requirement for two rinse bowls usually means that this system requires five or six bowls in total.
  • Some scourers especially those with six bowl ranges, have used a combination of the above to give a bowl configuration of (cold) suint bowl, detergent, rinse, detergent, rinse, rinse. It is considered that the late introduction of detergent into the system allows for greater softening of the wool grease, especially wool grease containing coloured impurities and so gives the scoured product a much better (ie less yellow) colour.
  • Each of US-A-2655428 and US-A-2629723 describes a three-stage system in which the suint alone is effectively employed as scouring agent, and a neutral, polar, oxygen containing organic compound and preferably a neutral electrolyte is added to enhance the effectiveness of the suint in emulsifying the wool grease.
  • a neutral, polar, oxygen containing organic compound and preferably a neutral electrolyte is added to enhance the effectiveness of the suint in emulsifying the wool grease.
  • wool is agitated in an aqueous solution containing 2% normal butanol and sodium chloride while maintaining the temperature at 60°C.
  • the wool is then squeezed free of the solution and rewashed in a fresh batch of the same solution at the same temperature.
  • the wool is then again squeezed free of the solution, washed with water and dried.
  • the scouring efficiency of the suint above has not proved sufficient for the process to achieve at least widespread commercial acceptance.
  • the present invention provides a method of scouring raw wool comprising the steps of (a) treating the wool with an aqueous medium containing a building agent capable of reducing the level of free calcium and/or magnesium therein and having a temperature of at least 45°C and thereafter (b) treating the wool with an aqueous medium having a pH of at least 8, containing a detergent and having a temperature of at least 45°C.
  • the temperature of the aqueous medium in step (a), namely the hot de-suinting liquor lies between 45-75°C, more preferably 60-70°C.
  • the pH of the hot de-suinting liquor is preferably at least 8, more preferably from 8-10.5, especially 9-10.
  • Builders which may be used in a method embodying the invention may be inorganic or organic builders.
  • inorganic detergency builders include water-soluble alkali metal carbonates, bicarbonates, silicates and crystalline and amorphous aluminosilicates. Specific examples include sodium carbonate (with or without calcite seeds), potassium carbonates, sodium and potassium bicarbonates and silicates.
  • Examples of phosphorus-containing inorganic detergency builders in particular include water-soluble salts, especially alkali metal pyrophosphates, orthophosphates and polyphosphates.
  • Specific examples of inorganic phosphate builders include sodium and potassium tripolyphosphates, phosphates and hexametaphosphates.
  • organic detergency builders include the alkali metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates, polyacetal carboxylates and polyhydroxysulphonates. Specific examples include sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediaminetetraacetic acid, nitrilotriacetic acid, oxydissuccinic acid, melitic acid, benezene polycarboxylic acids and citric acid.
  • Typical examples of the above are ethylene diamine tetraacetic acid (EDTA), nitrilotriacetic acid (NTA), citrates, zeolites, sodium tripolyphosphate, sodium carbonate and sodium silicate, though for those builders providing an acid pH, a compound capable of providing a pH of at least 8 is preferably added.
  • EDTA ethylene diamine tetraacetic acid
  • NTA nitrilotriacetic acid
  • citrates citrates
  • zeolites sodium tripolyphosphate
  • sodium carbonate and sodium silicate though for those builders providing an acid pH, a compound capable of providing a pH of at least 8 is preferably added.
  • a preferred builder in addition to its role in removing free calcium and/or magnesium from the aqueous medium, is preferably also capable of controlling the pH of the de-suinting liquor to provide a pH of at least 8.
  • the builder comprises at least one inorganic ionic compound, especially a mixture of inorganic ionic compounds, more especially a mixture of an alkali metal, for example sodium, carbonate and an alkali metal, for example sodium, silicate, preferably in a proportional amount such as to provide a sodium silicate:sodium carbonate weight ratio of from 20:80 to 80:20, more preferably 30:70 to 50:50, especially about 40:60.
  • an alkali metal for example sodium, carbonate
  • an alkali metal for example sodium, silicate
  • the builder concentration in step (a) is at least 0.2g/l and more preferably lies within the range from 0.5-10g/l, especially 1-5 g/l, more especially about 2 g/l.
  • a preferred liquor to fibre ratio is from 60:1 to 90:1, especially 75:1 to 85:1, more especially about 80:1.
  • the preliminary de-suinting step (a) is followed by a detergent scouring step (b) in which the detergent composition contains the same builder as that employed in the de-suinting step, though preferably at a lower concentration, more preferably 0.1-1 g/l, especially 0.3-0.7 g/l, more especially 0.5 g/l.
  • Suitable nonionic surfactants that can be included in the detergent active system include:
  • the detergent active system may comprise a mixture of anionic and nonionic detergents, in which case the preferred nonionic material or mixtures thereof will have an HLB (hydrophilic-lipophilic balance) of not more than 10.5, preferably in the range of from 6 to 10, most preferably in the range of 8 to 9.5.
  • the detergent active system can contain one or a mixture of more than one nonionic detergent-active material.
  • the mixture can contain one or more nonionic materials having an HLB of more than 10.5, providing the average HLB of the mixture of nonionic materials is not more than 10.5.
  • the HLB scale is a known measure of hydrophilic-lipophilic balance in any compound. It is fully defined in the literature, for example in "Nonionic Surfactants", Volume 1, edited by M J Schick. A method of determining the HLB of a mixture of nonionic materials is also defined in this reference.
  • Preferred nonionic materials are the alkoxylate adducts of fatty compounds selected from fatty alcohols, fatty acids, fatty esters, fatty amides and fatty amines.
  • the fatty compound contains at least 10 carbon atoms and the nonionic material contains an average of less than 8 alkylene oxide groups per molecule.
  • Alkylene oxide adducts of fatty alcohols useful in methods embodying the present invention preferably have the general formula: R10-O-(C n H 2n O) y H wherein R10 is an alkyl or alkenyl group having at least 10 carbon atoms, most preferably from 10 to 22 carbon atoms, y is preferably not more than 10, such as from 0.5 to about 3.5, and n is 2 or 3.
  • R10 is an alkyl or alkenyl group having at least 10 carbon atoms, most preferably from 10 to 22 carbon atoms, y is preferably not more than 10, such as from 0.5 to about 3.5, and n is 2 or 3.
  • Examples of such materials include Synperonic A3(ex ICI), which is a C13- C15 alcohol with about three ethylene oxide groups per molecule, and Empilan KB3 (ex Marchon) which is lauric alcohol 3EO.
  • Alkylene oxide adducts of fatty acids useful in methods embodying the present invention preferably have the general formula: R10-C-O (C n H 2n O) y H, wherein R10, n and y are as given above.
  • Suitable examples include ESONAL 0334 ( ex Diamond Shamrock ), which is a tallow fatty acid with about 2.4 ethylene oxide groups per molecule.
  • Alkylene oxide adducts of fatty esters useful in methods embodying the present invention include adducts of mono-, di- or triesters of polyhydric alcohols containing 1 to 4 carbon atoms; such as coconut or tallow oil (triglyceride) 3EO (ex Stearine Dubois).
  • Alyklene oxide adducts of fatty amides useful in methods embodying the present invention preferably have the general formula: wherein R10 is an alkyl or alkenyl group having at least 10 carbon atoms, most preferably from 10 to 22 carbon atoms, n is 2 or 3 and x and z in total are not more than 4.0, preferably from about 0.5 to about 3.5, while one of x and z can be zero. Examples of such materials include tallow monoethanolamide and diethanolamide, and the corresponding coconut and soya compounds.
  • Alkylene oxide adducts of fatty amines useful in methods embodying the present invention preferably have the general formula: wherein R10 and n are as given above, and x and z in total are preferably not more than 4.0, most preferably from about 0.5 to about 3.5.
  • examples of such materials include Ethomeen T12 (tallow amine 2EO, available from AKZO), Optameet PC5 (coconut alkyl amine 5EO) and Crodamet 1.02 (oleylamine 2EO, available from Croda Chemical).
  • Cationic detergent-active materials suitable for use herein include quaternary ammonium surfactants and surfactants of a semi-polar nature, for example amine oxides.
  • Amounts of amphoteric or zwitterionic detergent compounds can also be used in a method embodying the invention, but this is not normally desired owing to their relatively high cost. If any amphoteric or zwitterionic detergent compounds are used, it is generally in small quantities relative to the much more commonly used anionic and/or nonionic detergent-active compounds.
  • the detergent is preferably present in a concentration of 0.5 to 10 g/l, especially 1-5 g/l, more especially about 2 g/l.
  • a preferred method is carried out continuously, more preferably with the wool and water travelling in countercurrent flow.
  • An especially preferred scouring system includes an additional subsequent detergent treatment (c), using an aqueous medium at a temperature of at least 45°C, though using a lower concentration of detergent, preferably 0.1-1, more preferably 0.3-0.7, especially about 0.5 g/l. Steps (a) to (c) may be carried out successively, though preferably excess liquor in the wool is removed between the successive stages.
  • a method embodying the invention comprises the successive steps of
  • the system preferably contains four to six, especially five bowls, indicated as 1-5 in the drawing.
  • Arrows A and B represent entry of raw wool into and exit of wool out of the system and arrow E represents the direction of travel of the wool.
  • Arrow C represents the water inlet and arrow D the water outlet, arrow F representing the direction of travel of the water.
  • the raw wool is introduced into bowl 1 and moved along the bowl by a series of rakes suspended above the bowl.
  • the wool passes up a ramp onto a pair of squeeze rollers which removes most of the liquor entrained between the wool fibers and so prevents conveyance of contaminants removed in bowl 1 into bowl 2.
  • clean water is introduced into bowl 5 and a countercurrent flow system is used to pump this water back down the line of the bowls.
  • the de-suinting operation takes place in bowl 1, preferably at a temperature from 60-70°C, more especially 65°C, and a builder concentration of about 2 g/l.
  • the builder is a mixture of sodium silicate/sodium carbonate in a ratio of 40/60.
  • Such a builder is commercially available from Crosfield Textile Chemicals, Warrington, England, as Croscour P100.
  • a first detergent scouring operation is carried out in bowl 2, preferably at a temperature of from 60-70°C, more especially 65°C, using a non-ionic detergent, typically at a concentration of 2 g/l and the same builder as that used in bowl 1, but at a lower concentration of about 0.5 g/l.
  • a subsequent detergent treatment is carried out in bowl 3, which contains the same detergent as bowl 2, but at a lower concentration of about 0.5 g/l and no builder.
  • the scouring temperature is preferably 55-65, more preferably 60°C.
  • rinsing operations are carried out, using clean water at a temperature preferably from 40-60°C, more preferably about 55°C.
  • the throughput of wool will be around 1,000 kilo/hour, with a residence time in each bowl of about 2 mins.
  • a 300g batch of English 56's Arran wool was hand blended to ensure an even distribution of soiling. This 300g was divided into 6 x 50g lots which were then further divided into 5 x 10g samples. To simulate an industrial scouring range 5 x 1 litre beakers were used. Each beaker contained 800 ml of water giving a liquor to fibre ratio of 80:1. The temperature of the water in each beaker was as shown in Table 1 below.
  • Run Nos. 1-4 and 6 represent comparative methods, while Run No. 5 represents a method embodying the invention.
  • the samples of wool were treated consecutively as separate 10g samples with a residence time of 2 minutes in each beaker/bowl.
  • the wool was passed through a laboratory mangle between each beaker to simulate the squeeze rollers used on industrial scouring ranges.
  • the first 30g of each 50g sample was carded on a Shirley Miniature laboratory cotton card to produce an evenly distributed array of aligned fibres from which reflectance measurements could be made to assess the colour of wool.
  • a Zeiss Elrepho Spectrometer was used for this operating at 460 nm and using a Zeiss supplied white disc as a reflectance standard. Data are presented as R460 values, ie reflectance at 460 nm on a scale of 1 to 100, where 100 represents a perfect "white”. Measurements were made at ten different places on the wool sample and results averaged.
  • each 50g sample was treated in a similar manner to provide a measure of the change in the observed data as soil and other contaminants accumulated in the beakers. Approximately 5g of this wool was accurately weighed, extracted with dichloromethane for 2 hours and reweighed to assess the residual grease level on the wool.
  • Run 4 shows that the use of a suint bowl in combination with detergent and builder in Bowls 2 and 3 produces a further improvement in colour (whiteness). However, the best colour is found for Run 5 where the major portion of the builder is included in the first suint bowl. This improved whiteness is especially apparent for the results from the last 20g of wool from the 50g sample.
  • the scouring solutions in the beakers have started to "mature” and scouring efficiency is becoming optimal.
  • scouring efficiency is somewhat reduced for about the first 30 minutes until the bowls begin to "mature”. We believe that such maturation may be due to improved wetting resulting from the formation of soaps of wool grease.
  • Run 6 shows the results for a prior art method of B.O. Bateup and J.J. Warner, Text. Res. J. (1986), 56 , 489, where a cold suint bowl is used with sodium carbonate as the builder. As discussed above, this method is usually used to facilitate effluent disposal and not to optimise the quality of the scour. The reflectance values show it to be inferior to the built suint bowl used in the method embodying the invention
  • the builder employed was a mixture of sodium silicate and sodium carbonate in a 40:60 weight ratio.
  • the detergent employed had the following formulation:-

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Husbandry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
EP19920300244 1991-01-11 1992-01-10 Wool scouring Withdrawn EP0494797A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9100646 1991-01-11
GB919100646A GB9100646D0 (en) 1991-01-11 1991-01-11 Wool scouring

Publications (2)

Publication Number Publication Date
EP0494797A2 true EP0494797A2 (de) 1992-07-15
EP0494797A3 EP0494797A3 (en) 1993-05-19

Family

ID=10688318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920300244 Withdrawn EP0494797A3 (en) 1991-01-11 1992-01-10 Wool scouring

Country Status (5)

Country Link
EP (1) EP0494797A3 (de)
AU (1) AU1007292A (de)
GB (1) GB9100646D0 (de)
NZ (1) NZ241251A (de)
ZA (1) ZA92190B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015097175A1 (en) * 2013-12-23 2015-07-02 Akzo Nobel Chemicals International B.V. A method for scouring wool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552944A (en) * 1946-03-27 1951-05-15 Olin Mathieson Wool scouring
US2655428A (en) * 1950-03-27 1953-10-13 Harold P Lundgren Method of wool scouring with composition containing suint, alcohols, ketones, and inorganic electrolytes
GB823277A (en) * 1956-07-17 1959-11-11 Drew & Co Inc E F Process for scouring wool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015097175A1 (en) * 2013-12-23 2015-07-02 Akzo Nobel Chemicals International B.V. A method for scouring wool
CN105874108A (zh) * 2013-12-23 2016-08-17 阿克苏诺贝尔化学品国际有限公司 洗涤羊毛的方法

Also Published As

Publication number Publication date
GB9100646D0 (en) 1991-02-27
EP0494797A3 (en) 1993-05-19
NZ241251A (en) 1993-02-25
ZA92190B (en) 1993-07-12
AU1007292A (en) 1992-07-16

Similar Documents

Publication Publication Date Title
US4954292A (en) Detergent composition containing PVP and process of using same
US4347168A (en) Spray-dried granular detergent compositions for improved greasy soil removal
EP0256696B1 (de) Detergens-Zusammensetzung
CA1109759A (en) Detergent compositions
AU616204B2 (en) A composition for softening fabrics
EP0462806B1 (de) Verfahren und Zusammensetzung zur Behandlung von Textilien
AU631714B2 (en) Detergent composition
DE2857292C2 (de)
DE68919392T2 (de) Waschmittelzusammensetzungen.
JPH0559394A (ja) 洗剤組成物
CN87100462A (zh) 可调节漂洗期泡沫和浊度的洗涤剂组合物
CN1144533A (zh) 含2-烷基链烷醇、h2o2、阴离子和低hlb的非离子表面活性剂的水性清洗组合物
EP0065387A1 (de) Wäschenachbehandlungsmittel
LU86782A1 (fr) Compositions detergentes et assouplissantes de blanchissage contenant un complexe salin et procedes les utilisant pour nettoyer et assouplir des tissus
CN87100469A (zh) 可调节漂洗期泡沫的洗涤剂组合物
SE413904B (sv) Torr detergentkomposition innehallande en sulfaterad, etoxilerad hogre fettalkoholdetergent
EP1190027A1 (de) Flüssiges waschmittel enthaltend ethoxyliertes quarternäres tensid
DE68919601T3 (de) Waschmittelzusammensetzungen.
EP0287343B1 (de) Zusammensetzung zum Weichmachen von Textilien
CA1323818C (en) Detergent composition
CA2295015C (en) Method for washing clothes, in particular working clothes
EP0494797A2 (de) Entschweissen von Wolle
CA2004895A1 (en) Liquid non-phosphate detergent of high alkalinity
EP0488750B1 (de) Verfahren und Zusammensetzung zur Behandlung von Textilien
EP0615540A1 (de) Spülaktive schaumbremsende partikel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19921030

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE

18W Application withdrawn

Withdrawal date: 19930713

R18W Application withdrawn (corrected)

Effective date: 19930713