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EP3481935B1 - Accélération du séchage du linge - Google Patents

Accélération du séchage du linge Download PDF

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Publication number
EP3481935B1
EP3481935B1 EP17739896.3A EP17739896A EP3481935B1 EP 3481935 B1 EP3481935 B1 EP 3481935B1 EP 17739896 A EP17739896 A EP 17739896A EP 3481935 B1 EP3481935 B1 EP 3481935B1
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EP
European Patent Office
Prior art keywords
weight
laundry
value
carboxylic acid
acid
Prior art date
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Active
Application number
EP17739896.3A
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German (de)
English (en)
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EP3481935A1 (fr
Inventor
Arnd Kessler
Slavoljub Barackov
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.)
Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Publication of EP3481935A1 publication Critical patent/EP3481935A1/fr
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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • C11D3/0015—Softening compositions liquid
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/265—Carboxylic acids or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers

Definitions

  • the present invention relates to the use of carboxylic acids to shorten the drying time and to reduce the residual moisture content of machine-washed textiles.
  • the water that has stuck to the textiles must be removed. Some of the water that has stuck to them can be removed by applying mechanical forces, known as spinning. However, not all textiles can withstand being spun, and even spun items are usually not dry enough to be stored or worn again. For further drying, the wet, possibly spun textiles are usually hung on a clothesline or put in a tumble dryer. With the second option, it is immediately clear that the length of time needed to achieve the desired drying result is directly related to the energy consumption. But even when drying on the line, it is desirable to keep the time required for this as short as possible.
  • the EU regulation on energy labeling for household washing machines defines classes for spin efficiency, i.e. the residual moisture remaining in the laundry (efficiency classes A to G). Laundry that contains less residual moisture dries faster and uses less energy when dried in an electric tumble dryer, which makes the use of tumble dryers more attractive.
  • the last spin cycle in a washing machine is used to finally dehumidify the laundry in preparation for drying, either on the line or in the tumble dryer.
  • the laundry is centrifugally dewatered at spin speeds of 600 to 1600 revolutions per minute.
  • the type of textile is also decisive for the degree of dewatering.
  • Fabrics made of synthetic fibres dewater quickly and strongly during spinning, whereas conventional cotton fabrics have a high water retention capacity, especially under spinning conditions.
  • the spinning efficiency energy consumption labelling according to EU 1061/2010
  • the top grade A is awarded if the residual moisture content is below 45%.
  • the invention relates to the use of carboxylic acids in the rinsing step of machine washing processes in such amounts that the pH value of the after-treatment liquor is adjusted to a value in the range below pH 7, in order to shorten the drying time of the washed and optionally spun textiles.
  • a further subject of the invention is therefore the use of carboxylic acids in such quantities that the pH value of the post-treatment liquor is adjusted to a value in the range below pH 7, in order to reduce the residual moisture content of machine-washed and in particular spun textiles.
  • the pH value of the aqueous liquor in which the textiles are located is lowered.
  • the aqueous washing liquor is drained out of the washing machine, usually by pumping.
  • the rinsing step removes the part of the aqueous liquor that is still adhering to the textile and that came into contact with the textile in the washing step.
  • a post-treatment agent for example a fabric softener
  • a fabric softener can be added to the aqueous rinsing liquor used in the rinsing step or in one of the rinsing steps.
  • fabric softeners usually contain cationic compounds that absorb onto the textiles and give them a soft feel. For reasons of the then higher stability of the cationic
  • Textile softener active ingredients of this type generally have an acidic pH value. However, due to the type and amount of acids used in them, this does not result in an acidic pH value in the rinsing liquor in which they are used. Rather, even when using conventional fabric softeners, the rinsing liquor is also basic because of the basic washing liquor that has previously come into contact with the textiles and is still partially adhering to them.
  • such amounts of carboxylic acid are used that the pH value of the post-treatment liquor is adjusted to a value in the range below pH 7, preferably to a value in the range from pH 3 to pH 5 and in particular in the range from pH 4 to pH 5.
  • Laundry post-treatment agents within the meaning of the invention can consist solely of the carboxylic acid, in particular if this is liquid at room temperature, they can have the carboxylic acid in the form of an aqueous solution, or they can, if desired, contain other usual components of such agents that do not interact in an undesirable manner with the carboxylic acid essential to the invention.
  • Preferred laundry aftertreatment agents used in the context of the invention contain 50% to 95% by weight, in particular 80% to 95% by weight, of the carboxylic acid; preferred laundry aftertreatment agents are also water-containing and liquid and contain 10% to 50% by weight, in particular 20% to 40% by weight, of the carboxylic acid.
  • the time during which the acidic aqueous aftertreatment liquor remains in contact with the washed textiles is preferably in the range from 1 minute to 60 minutes, in particular from 5 minutes to 20 minutes.
  • the carboxylic acid or the rinsing agent containing it can be introduced into a washing machine using a conventional dispensing device designed for dosing fabric softeners.
  • a storage container connected to the water-carrying units of the washing machine via a supply line, which can be located inside or outside the machine, and is dosed in a program-controlled manner in the rinsing step.
  • This can be done with a washing machine with a suds container, a laundry drum for holding the laundry to be washed, a water supply system and a program control, characterized in that the washing machine has a storage container for a carboxylic acid, from which the carboxylic acid can be introduced into the washing process in a program-controlled manner.
  • the carboxylic acid can be fed directly to the suds container or alternatively fed at other points in the liquid circuit of the machine, for example the circulation pump.
  • the storage container can contain sufficient amounts of carboxylic acid for several applications, preferably 2 to 50 applications.
  • the storage container can contain a laundry post-treatment agent containing the carboxylic acid.
  • the carboxylic acid is present in the storage container in the form of an aqueous solution containing 10 wt.% to 50 wt.%, in particular 20 wt.% to 40 wt.% of the carboxylic acid.
  • Carboxylic acids are compounds that contain at least one C(O)OH group. They can also contain other functional groups if desired, including, for example, hydroxyl groups and amino groups. Preferred carboxylic acids are selected from the group comprising acetic acid, citric acid, succinic acid, malonic acid, tartaric acid, aminoacetic acid and mixtures thereof.
  • Preferred textiles to which the use according to the invention relates are those made of cellulose-containing material.
  • the cellulose-containing materials from which textiles to be treated are preferably made include cotton, regenerated cellulose fibers such as modal or lyocel, and blended fabrics made of cotton or regenerated cellulose fibers with other materials commonly used for clothing purposes, such as polyester and polyamide.
  • a reduced residual moisture in the laundry is achieved after the washing process, in particular after a spin cycle following washing, and thus an overall faster drying of the laundry.
  • a tumble dryer with detection of the residual moisture in the laundry, lower energy consumption results due to the reduced moisture in the laundry placed in the tumble dryer.
  • the use of the invention therefore has financial as well as time advantages.
  • Laundry aftertreatment agents which contain the acid to be used according to the invention are solid or preferably liquid and can also be present, for example, as a single dose (for example packed in bags made of water-soluble or water-dispersible material).
  • laundry aftertreatment agents are laundry care products such as fabric softeners.
  • Laundry aftertreatment agents within the meaning of the invention can consist solely of the carboxylic acid, particularly if this is liquid at room temperature, contain the carboxylic acid in the form of an aqueous solution, or, if desired, contain other usual components of such agents which do not interact in an undesirable manner with the carboxylic acid essential to the invention.
  • the carboxylic acid is used together with at least one polymer of ethylene glycol or propylene glycol or a copolymer of these; preferred propylene glycol is 1,2-propylene glycol.
  • polyethylene glycol is with a number-average molecular weight in the range from 300 g/mol to 35,000 g/mol, in particular 4,000 g/mol to 6,000 g/mol, and/or polypropylene glycol with a number-average molecular weight in the range from 250 g/mol to 5,000 g/mol, in particular 1,500 g/mol to 2,500 g/mol.
  • the weight ratio of propylene glycol to ethylene glycol is preferably in the range from 10:90 to 90:10, in particular from 60:40 to 80:20.
  • the monomers mentioned can be randomly distributed or present as blocks. Preference is given to copolymers in which polyethylene glycol blocks are condensed onto a central polypropylene glycol block.
  • the molecular weight of the central polypropylene glycol block is preferably in the range from 1000 g/mol to 5000 g/mol, in particular from 1500 g/mol to 2700 g/mol, and the molecular weight of each polyethylene glycol block bound to it is in the range from 100 g/mol to 6000 g/mol, in particular from 500 g/mol to 3500 g/mol.
  • block copolymers are commercially available, for example, under the names Pluronic ® PE.
  • the content of polymer made from ethylene glycol or propylene glycol or copolymer made from these in the laundry aftertreatment agent used according to the invention can, if desired, be up to 50% by weight, preferably 1% by weight to 15% by weight, and in particular 2% by weight to 10% by weight.
  • carboxylic acid and such a polymer or copolymer reduces the residual moisture content of the laundry particularly significantly.
  • the preparations used as after-treatment agents can be designed as laundry care products and then contain additional softening components, preferably betaines and/or cationic surfactants.
  • additional softening components preferably betaines and/or cationic surfactants.
  • textile softening components are quaternary ammonium compounds, cationic polymers and emulsifiers, such as those used in hair care products and also in textile conditioning agents.
  • Suitable examples are quaternary ammonium compounds of formulas (I) and (II), where in (I) R and R 1 are an acyclic alkyl radical having 12 to 24 carbon atoms, R 2 is a saturated C 1 -C 4 alkyl or hydroxyalkyl radical, R 3 is either R, R 1 or R 2 or is an aromatic radical.
  • X - is either a halide, methosulfate, methophosphate or phosphate ion and mixtures thereof.
  • Examples of cationic compounds of the formula (I) are didecyldimethylammonium chloride, ditallowdimethylammonium chloride or dihexadecylammonium chloride.
  • Esterquats are characterized by their good biodegradability and are preferred in the context of the present invention.
  • R 4 is an aliphatic alkyl radical having 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds
  • R 5 is H, OH or O(CO)R 7
  • R 6 is H, OH or O(CO)R 8 independently of R 5
  • R 7 and R 8 independently of one another each represent an aliphatic alkyl radical having 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds.
  • m, n and p can each independently have the value 1, 2 or 3.
  • X - can be either a halide, methosulfate, methophosphate or phosphate ion or mixtures of these.
  • Examples of compounds of the formula (III) are methyl-N-(2-hydroxyethyl)-N,N-di(tallowacyloxyethyl)ammonium methosulfate, bis(palmitoyl)ethyl-hydroxyethyl-methyl-ammonium methosulfate or methyl-N,N-bis(acyloxyethyl)-N-(2-hydroxyethyl)ammonium methosulfate.
  • the agents contain the plasticizer components in amounts of up to 35% by weight, preferably from 0.1 to 25% by weight, particularly preferably from 0.5 to 15% by weight and in particular from 1 to 10% by weight, in each case based on the entire agent.
  • Solvents that can be used in particular for liquid agents are, in addition to water, preferably non-aqueous solvents that are miscible with water. These include lower alcohols, for example ethanol, propanol, isopropanol, and the isomeric butanols, glycerin, lower glycols, for example ethylene and propylene glycol, and the ethers that can be derived from the lower alcohols mentioned.
  • the agents contain up to 95% by weight, in particular 25% by weight to 90% by weight, of water, and up to 50% by weight, in particular 0.1% by weight to 15% by weight, of non-aqueous solvent.
  • the agents can contain pearlescent agents.
  • Pearlescent agents give the textiles an additional shine.
  • examples of pearlescent agents that can be used are: alkylene glycol esters; fatty acid alkanolamides; partial glycerides; esters of polybasic, optionally hydroxy-substituted carboxylic acids with fatty alcohols with 6 to 22 carbon atoms; fatty substances such as fatty alcohols, fatty ketones, fatty aldehydes, fatty ethers and fatty carbonates that have a total of at least 24 carbon atoms; ring-opening products of olefin epoxides with 12 to 22 carbon atoms with fatty alcohols with 12 to 22 carbon atoms, fatty acids and/or polyols with 2 to 15 carbon atoms and 2 to 10 hydroxyl groups, and mixtures thereof.
  • liquid products can also contain thickeners.
  • thickeners To increase consumer acceptance, the use of thickeners has become increasingly popular, particularly in gel-form products. proven.
  • Naturally derived polymers that can be used as thickeners are, for example, agar-agar, carrageenan, tragacanth, gum arabic, alginates, pectins, polyoses, guar flour, carob seed flour, starch, dextrins, gelatin and casein, cellulose derivatives such as carboxymethylcellulose, hydroxyethyl and hydroxypropyl cellulose, and polymeric polysaccharide thickeners such as xanthan; fully synthetic polymers such as polyacrylic and polymethacrylic compounds, vinyl polymers, polycarboxylic acids, polyethers, polyimines, polyamides and polyurethanes are also suitable.
  • the agents used according to the invention contain thickeners, preferably in amounts of up to 10% by weight, particularly preferably up to 5% by weight, in particular from 0.1% by
  • the agents can additionally contain odor absorbers and/or color transfer inhibitors.
  • the agents optionally contain 0.1% to 2% by weight, preferably 0.2% to 1% by weight, of color transfer inhibitor, which in a preferred embodiment of the invention is a polymer of vinylpyrrolidone, vinylimidazole, vinylpyridine-N-oxide or a copolymer of these.
  • Useful polymers include, for example, polyvinylpyrrolidones with molecular weights of from 15,000 to 50,000 as well as polyvinylpyrrolidones with molecular weights of over 1,000,000, in particular from 1,500,000 to 4,000,000, N-vinylimidazole/N-vinylpyrrolidone copolymers, polyvinyloxazolidones, copolymers based on vinyl monomers and carboxamides, polyesters and polyamides containing pyrrolidone groups, grafted polyamidoamines, polyamine N-oxide polymers, polyvinyl alcohols and copolymers based on acrylamidoalkenylsulfonic acids.
  • copolymers those of vinylpyrrolidone and vinylimidazole in a molar ratio of 5:1 to 1:1 with an average weight-average molecular weight in the range from 5,000 g/mol to 50,000 g/mol, in particular 10,000 g/mol to 20,000 g/mol, are preferred.
  • Preferred deodorizing substances are metal salts of an unbranched or branched, unsaturated or saturated, mono- or polyhydroxylated fatty acid with at least 16 carbon atoms and/or a resin acid with the exception of alkali metal salts, and any mixtures thereof.
  • a particularly preferred unbranched or branched, unsaturated or saturated, mono- or polyhydroxylated fatty acid with at least 16 carbon atoms is ricinoleic acid.
  • a particularly preferred resin acid is abietic acid.
  • Preferred metals are the transition metals and the lanthanides, in particular the transition metals of groups VIIIa, Ib and IIb of the periodic table, as well as lanthanum, cerium and neodymium, particularly preferably cobalt, nickel, copper and zinc, extremely preferably zinc.
  • the cobalt, nickel and copper salts and the zinc salts are similarly effective, but for toxicological reasons the zinc salts are preferable.
  • Advantageous and therefore particularly preferred deodorizing substances are one or more metal salts of ricinoleic acid and/or abietic acid, preferably zinc ricinoleate and/or zinc abietate, in particular zinc ricinoleate.
  • Suitable Deodorizing substances in the sense of the invention also include cyclodextrins, as well as mixtures of the aforementioned metal salts with cyclodextrin, preferably in a weight ratio of 1:10 to 10:1, particularly preferably 1:5 to 5:1 and in particular 1:3 to 3:1.
  • cyclodextrin includes all known cyclodextrins, i.e. both unsubstituted cyclodextrins with 6 to 12 glucose units, in particular alpha-, beta- and gamma-cyclodextrins, as well as mixtures thereof and/or derivatives thereof and/or mixtures thereof.
  • Liquid or pasty agents in the form of solutions containing common solvents, in particular water are usually prepared by simply mixing the ingredients, which can be added in substance or as a solution into an automatic mixer.
  • the agents are present, preferably in liquid form, as a portion in a completely or partially water-soluble coating.
  • the portioning makes it easier for the consumer to dose.
  • the water content of the post-treatment agents is preferably less than 15% by weight and is in particular in the range from 1% by weight to 12% by weight.
  • the products can be packed in foil bags, for example. Bags made of water-soluble foil make it unnecessary for the consumer to tear open the packaging. This makes it easy to dispense a single portion for one wash cycle by placing the bag directly in the washing machine or by throwing the bag into a certain amount of water, for example in a bucket, bowl or hand basin.
  • the foil bag surrounding the wash portion dissolves without leaving any residue when a certain temperature is reached.
  • the filling material is injected into the capsule being formed, with the injection pressure of the filling liquid pressing the polymer bands into the spherical half-shell cavities.
  • a process for producing water-soluble capsules, in which filling takes place first and then sealing, is based on the so-called Bottle-Pack ® process.
  • a tube-like preform is guided into a two-part cavity. The cavity is closed, sealing the lower tube section, then the tube is inflated to form the capsule shape in the cavity, filled and finally sealed.
  • the shell material used to produce the water-soluble portion is preferably a water-soluble polymeric thermoplastic, particularly preferably selected from the group (optionally partially acetalized) polyvinyl alcohol, polyvinyl alcohol copolymers, polyvinylpyrrolidone, polyethylene oxide, gelatin, cellulose and derivatives thereof, starch and derivatives thereof, blends and composites, inorganic salts and mixtures of the materials mentioned, preferably hydroxypropylmethylcellulose and/or polyvinyl alcohol blends.
  • Polyvinyl alcohols are commercially available, for example under the trademark Mowiol ® (Clariant).
  • Polyvinyl alcohols that are particularly suitable in the context of the present invention are, for example, Mowiol ® 3-83, Mowiol ® 4-88, Mowiol ® 5-88, Mowiol ® 8-88 and Clariant L648.
  • the water-soluble thermoplastic used to produce the portion can optionally additionally comprise polymers selected from the group comprising acrylic acid-containing polymers, polyacrylamides, oxazoline polymers, polystyrene sulfonates, polyurethanes, polyesters, polyethers and/or mixtures of the above polymers.
  • the water-soluble thermoplastic used comprises a polyvinyl alcohol whose degree of hydrolysis is 70 to 100 mol%, preferably 80 to 90 mol%, particularly preferably 81 to 89 mol% and in particular 82 to 88 mol%. It is further preferred that the water-soluble thermoplastic used comprises a polyvinyl alcohol whose molecular weight is in the range from 10,000 to 100,000 gmol -1 , preferably from 11,000 to 90,000 gmol -1 , particularly preferably from 12,000 to 80,000 gmol -1 and in particular from 13,000 to 70,000 gmol -1 .
  • thermoplastics are present in amounts of at least 50% by weight, preferably at least 70% by weight, particularly preferably at least 80% by weight and in particular at least 90% by weight, in each case based on the weight of the water-soluble polymeric thermoplastic.
  • Example 2 Additive Residual moisture 50 ml acetic acid 50% + 5 g Pluronic ® PE 3100 44.3% 50 ml acetic acid 50% + 5 g Pluronic ® PE 10400 44.6% 50 ml acetic acid 50% + 5 g Pluronic ® PE 8100 43.4% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6800 35.2% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6100 38.6% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6400 34.2%
  • Example 2 The procedure described in Example 1 was repeated using batches of terry cloth and barley grain towels, weight ratio 1:1, and the additives indicated in the table below.
  • Table 3 Additive Residual moisture - 50.4% 2 g Pluronic ® PE 6800 47.5% 50 ml acetic acid 50% 45.1% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6100 46.2% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6400 45.8% 50 ml acetic acid 50% + 1 g Pluronic ® PE 6800 42.4% 50 ml acetic acid 50% + 2 g Pluronic ® PE 6800 41.3% 50 ml acetic acid 50% + 3 g Pluronic ® PE 6800 42.8% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6800 42.9% 30 ml acetic acid 16.67% + 2 g Pluronic ® PE 6800 44.9% 35 ml
  • Example 2 The procedure described in Example 1 was repeated using the conventional cotton program (program running time approx. 180 to 200 minutes) and using the additives indicated in the table below.
  • Table 4 Additive Residual moisture - 45.8% 50 ml acetic acid 50% 40.0% 50 ml acetic acid 50% + 2 g Pluronic ® PE 6800 38.3% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6800 41.3% 50 ml acetic acid 50% + 2 g Pluronic ® PE 6100 37.8% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6100 37.2% 50 ml acetic acid 50% + 2 g Pluronic ® PE 6400 40.0% 50 ml acetic acid 50% + 5 g Pluronic ® PE 6400 39.8%
  • Example 2 The procedure described in Example 1 was repeated using the additives indicated in the table below.
  • Table 5 Additive Residual moisture - 46.6% 25 g citric acid + 75 g water 43.7% 25 g citric acid + 70 g water + 5 g Pluronic ® PE 6100 39.8% 25 g citric acid + 73 g water + 2 g Pluronic ® PE 6400 40.2%
  • Example 2 The procedure described in Example 1 was repeated using the additives indicated in the table below.
  • Table 6 Additive Residual moisture - 49.6% 10 g malonic acid 41.3% 10 g malonic acid + 5 g Pluronic ® PE 6800 39.8% 10 g malonic acid + 5 g PEG 2000 40.7% 10 g malonic acid + 5 g PEG 4000 40.2% 10 g malonic acid + 5 g PEG 6000 40.7% 30 g citric acid + 5 g PEG 2000 39.8% 25 g citric acid + 5 g PEG 4000 40.3% 25 g citric acid + 5 g PEG 6000 40.1% 30 g citric acid + 5 g PEG 6000 39.4% 30 g citric acid + 5 g PEG 8000 40.2% 30 g citric acid + 5 g PEG 10000 40.1%

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)

Claims (5)

  1. Utilisation d'acides carboxyliques dans l'étape de rinçage des procédés de lavage en machine, en quantités telles que le pH du bain de post-traitement soit ajusté à une valeur inférieure à pH 7, afin de réduire le temps de séchage des textiles lavés et éventuellement essorés
  2. Utilisation d'acides carboxyliques en quantités telles que le pH du bain de post-traitement soit ajusté à une valeur inférieure à pH 7, afin de réduire la teneur en humidité résiduelle des textiles lavés en machine et notamment des textiles essorés.
  3. Utilisation selon la revendication 1 ou 2, caractérisée en ce que on utilise des quantités d'acide carboxylique telles que le pH du bain de post-traitement est ajusté à une valeur dans la plage de pH 3 à pH 5.
  4. Utilisation selon l'une des revendications précédentes, caractérisée en ce que l'acide carboxylique est utilisé comme composant d'un produit de rinçage qui contient de 50 % en poids à 95 % en poids, en particulier de 80 % en poids à 95 % en poids d'acide carboxylique liquide.% en poids d'acide carboxylique ou qui est aqueux et liquide et qui contient 10 % en poids à 50 % en poids d'acide carboxylique, et jusqu'à 50 % en poids, en particulier 1 % en poids à 15 % en poids, de polymère d'éthylèneglycol, de propylèneglycol ou de copolymère de ceux-ci.
  5. Utilisation selon l'une des revendications précédentes, caractérisée en ce que le temps pendant lequel le bain aqueux acide de post-traitement reste en contact avec les textiles lavés se situe dans la plage de 5 minutes à 20 minutes.
EP17739896.3A 2016-07-06 2017-06-27 Accélération du séchage du linge Active EP3481935B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016212312.2A DE102016212312A1 (de) 2016-07-06 2016-07-06 Beschleunigung der Wäschetrocknung
PCT/EP2017/065817 WO2018007201A1 (fr) 2016-07-06 2017-06-27 Accélération du séchage du linge

Publications (2)

Publication Number Publication Date
EP3481935A1 EP3481935A1 (fr) 2019-05-15
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EP (1) EP3481935B1 (fr)
KR (1) KR102350283B1 (fr)
CN (1) CN108779417B (fr)
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WO (1) WO2018007201A1 (fr)

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US11781093B2 (en) 2018-11-07 2023-10-10 The Procter & Gamble Company Process for treating a fabric and related compositions
JP7335131B2 (ja) 2018-11-07 2023-08-29 ザ プロクター アンド ギャンブル カンパニー 低ｐＨ布地ケア組成物
CA3152134A1 (fr) 2019-09-27 2021-04-01 Courtney SNOW Composition assouplissante liquide pour tissus
CN113249176B (zh) * 2021-05-18 2022-03-15 纳爱斯浙江科技有限公司 一种织物快干添加剂组合物及包含该组合物的织物洗涤剂

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US4060505A (en) * 1975-01-16 1977-11-29 Basf Wyandotte Corporation Compositions for souring and softening laundered textile materials and stock solutions prepared therefrom
DE3403622A1 (de) * 1984-02-02 1985-08-14 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Automatisch gesteuerte waschmaschine
DE3805880A1 (de) * 1988-02-25 1989-09-07 Benckiser Gmbh Joh A Verfahren zum maschinellen reinigen von textilien
GB8914054D0 (en) * 1989-06-19 1989-08-09 Unilever Plc Fabric softening composition
US20070054831A1 (en) * 2003-05-21 2007-03-08 Christopher Boardman Use of nonionic surfactant in a laundry treatment composition
CA2753153A1 (fr) * 2009-02-25 2010-09-02 Fariborz Dawudian Compositions pour le blanchissage puis le sechage de vetements delicats sans dommages et procedes d'utilisation associes
WO2013032479A1 (fr) * 2011-09-01 2013-03-07 Colgate-Palmolive Company Procédé pour réaliser un séchage rapide d'un tissu

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WO2018007201A1 (fr) 2018-01-11
CN108779417A (zh) 2018-11-09
DE102016212312A1 (de) 2018-01-11
EP3481935A1 (fr) 2019-05-15
KR20190028369A (ko) 2019-03-18
CN108779417B (zh) 2021-10-29
KR102350283B1 (ko) 2022-01-14

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