EP1076088B1 - Procédé de nettoyage de textiles - Google Patents

Procédé de nettoyage de textiles Download PDF

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Publication number
EP1076088B1
EP1076088B1 EP99119749A EP99119749A EP1076088B1 EP 1076088 B1 EP1076088 B1 EP 1076088B1 EP 99119749 A EP99119749 A EP 99119749A EP 99119749 A EP99119749 A EP 99119749A EP 1076088 B1 EP1076088 B1 EP 1076088B1
Authority
EP
European Patent Office
Prior art keywords
textiles
cationic surfactant
siloxane
molecular weight
low molecular
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.)
Expired - Lifetime
Application number
EP99119749A
Other languages
German (de)
English (en)
Other versions
EP1076088A1 (fr
Inventor
Wang Ping Mei
Peter S. Wu
Samuel N. Chiang
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.)
Dow Corning Taiwan Inc
Original Assignee
Dow Corning Taiwan Inc
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 Dow Corning Taiwan Inc filed Critical Dow Corning Taiwan Inc
Publication of EP1076088A1 publication Critical patent/EP1076088A1/fr
Application granted granted Critical
Publication of EP1076088B1 publication Critical patent/EP1076088B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/044—Hydroxides or bases
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
    • 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
    • C11D1/38—Cationic 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
    • C11D3/10—Carbonates ; Bicarbonates
    • 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
    • C11D3/162—Organic compounds containing Si
    • 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
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds

Definitions

  • the present invention relates to a process for cleaning textiles, especially for removal of any oily and /or greasy stains from textiles and for removal of silicones retained on textiles.
  • any oily/greasy stains have been removed from textiles by various manners for cleaning purposes.
  • silicone fluids have been used as textile treating agents to impart smoothness, softness, and the like.
  • the presence of such silicone treating agents on textiles adversely affects re-dying of the textiles, so they must be removed before re-dying. Therefore, a product referred to as a "stripping agent", produced by the combination of cationic surfactants, is commercially available but is not entirely satisfactory, especially for aminosilicone textile treating agents.
  • a low molecular weight siloxane known as "volatile siloxane” has been used for cleaning a substrate including textile. It is often used in combination with a surfactant. These are disclosed in the following patents which are incorporated herein by reference. The cyclic siloxanes employed in these prior art patents do not work in the present invention.
  • US 4,654,041 discloses a process for removing silicone from fibers, yarns or two-dimensional textile materials by the action of aqueous preparations, which may contain surfactive equilibration catalyst for organosiloxanes, and optionally detergents, wetting agents and alkali carbonates.
  • US 4,685,930 discloses a method for cleaning textiles which comprises applying a liquid composition consisting essentially of a cyclic siloxane and surfactant such as anionic, non-ionic, zwitterionic or ampholytic surfactant to a textile soiled with oil, grease or sebum, and removing from the textile a combination comprising cyclic siloxane and oil, grease or sebum.
  • a liquid composition consisting essentially of a cyclic siloxane and surfactant such as anionic, non-ionic, zwitterionic or ampholytic surfactant
  • DE 3739711A1 discloses a cleaning agent comprising cyclosiloxane and an anionic, cationic and/or ionic surfactant, which is used for cleaning fabrics.
  • the present invention relates to a process for cleaning textiles, which comprises applying a composition comprising a low molecular weight linear siloxane represented by the formula: CH 3 (( CH 3 ) 2 SiO ) n Si ( CH 3 ) 2 CH 3 wherein n is an integer from 1 to 7, and a cationic surfactant selected from the group consisting of trialkylmethylammonium salts, dialkyldimethylammonium salts, and mixtures thereof to stained textiles in the presence of an inorganic base compound and heating the textiles at a temperature below which the textiles are deteriorated.
  • a composition comprising a low molecular weight linear siloxane represented by the formula: CH 3 (( CH 3 ) 2 SiO ) n Si ( CH 3 ) 2 CH 3 wherein n is an integer from 1 to 7, and a cationic surfactant selected from the group consisting of trialkylmethylammonium salts, dialkyldimethylammonium salts, and mixtures thereof to stained textile
  • the method of the present invention can remove any oily and/or greasy stains from textiles and silicones retained on textiles.
  • the process of the present invention for cleaning textiles comprises applying a composition comprising a low molecular weight linear siloxane represented by the formula: CH 3 (( CH 3 ) 2 SiO ) n Si ( CH 3 ) 2 CH 3 wherein n is an integer from 1 to 7, and a cationic surfactant selected from the group consisting of trialkylmethylammonium salts, dialkyldimethylammonium salts, and mixtures thereof to stained textiles and heating the textiles in the presence of an inorganic base compound at a temperature below which the textiles are deteriorated.
  • a composition comprising a low molecular weight linear siloxane represented by the formula: CH 3 (( CH 3 ) 2 SiO ) n Si ( CH 3 ) 2 CH 3 wherein n is an integer from 1 to 7, and a cationic surfactant selected from the group consisting of trialkylmethylammonium salts, dialkyldimethylammonium salts, and mixtures thereof to stained textiles and heating the textile
  • the low molecular weight linear siloxanes of the present invention represented by the formula CH 3 (( CH 3 ) 2 SiO ) n Si ( CH 3 ) 2 CH 3 wherein n is an integer from 1 to 7, are well known in the art.
  • the siloxanes suitable for the invention should have viscosity less than about 5cs.
  • the siloxanes having more than about 5 cs. cannot be employed in the present invention.
  • Preferred siloxanes include dimers, trimers and tetramers. As shown in the comparative example, a cyclic siloxane cannot be used in this invention.
  • the silicone stains would become swelled after absorbing the siloxanes of this invention and easier to be cut into small fragments by strong bases carried by the cationic surfactants, and the fragments can be dissolved in the siloxane fluid.
  • the low molecular weight siloxane When the low molecular weight siloxane is applied together with a cationic surfactant and a base, it can promote the "cutting" efficiency because it can behave as a solvent to swell silicone and allow hydroxy ion to penetrate into the inner part of an oil spot more easily.
  • the cationic surfactant employed in the present invention is selected from the group consisting of trialkylmethylammonium salts, dialkyldimethylammonium salts and mixtures thereof.
  • the quaternary ammonium salts wherein the alkyl radical contains from 8 or less to 16 or more carbon atoms and the salt is chloride or bromide, are commercially available. Trilaurylmethyl ammonium chloride and didecyldimethylammonium chloride are most preferable. These ammonium salts are used individually or as mixtures thereof or in combination with other ammonium salts such as alkylbenzyldimethylammonium salts.
  • Cationic surfactants alone can neutralize the negative charges on fabric surfaces and enable strong bases closing to and reacting with silicone oil spots (cutting polysiloxanes into small fragments) to remove them from fabric surfaces.
  • the base is a real silicone stripper and the cationic surfactant is an auxiliary which helps the base penetrate more easily.
  • the base compounds suitable for the present invention depend on the materials of textiles.
  • Preferred inorganic base compounds of the present invention are NaOH, KOH, Na 2 CO 3 , NaHCO 3 and the like.
  • NaOH is good for cotton fabrics but not for wools.
  • Na 2 CO 3 or NaHCO 3 is preferred for wools.
  • composition of the present invention can further comprise other ingredients.
  • a non-ionic surfactant may be added to the composition, which is used to stabilize the composition of the present invention. Since the composition is generally added to an aqueous system, it is preferably used in form of an emulsion. Persons skilled in the art know that any non-ionic surfactant is useful to meet this requirement.
  • biocides can be used as preservatives for emulsions.
  • the proportions of the components are not critical to the composition of the present invention. However, generally, the ratio of the low molecular weight linear siloxane to the cationic surfactant is in the range of from about 1:25 to 25:1. The ratio of the sum of the low molecular weight linear siloxane plus the cationic surfactant to the base compound (on the basis of effective ingredient) is in the range of from about 16:1 to 16:20.
  • the order of addition of the components is not critical. It is preferred to previously produce a cleaning composition comprising the low molecular weight linear siloxane and cationic surfactants in the form of an aqueous emulsion, and add the cleaning composition and the inorganic base to a cleaning bath where water and a stained textile are loaded in, and then heat the cleaning bath at a temperature above the room temperature.
  • the upper limit of the temperature may be the temperature under which the textile can be exposed without thermal deterioration.
  • the temperature varies depending on the length of heating time. For example, the temperature is preferably from about 80 to 100 degrees C, and the time is preferably from about 30 minutes to 3 hours. The lower temperature can be used, but more time will be needed.
  • the textile may be neutralized with a weak acid such as acetic acid.
  • silicone softener polydimethylmethyl(aminoethylamino-isobutyl)siloxane with viscosity of 1,500 cs.
  • a cleaning vessel 80 grams of water was loaded first. Then the stained textile, the cleaning composition and 0.2 grams of 50% NaOH were loaded, and stirred for 60 minutes at a temperature of 90 degrees C. The cleaning solution was drained off, the textile was rinsed with water, and 0.093 grams of 60% acetic acid was added to neutralize the textile. The textile was again rinsed with water and dried at a temperature of 180 degrees C. for two minutes.
  • a cleaning composition in the form of an emulsion was prepared by mixing the cationic surfactants (Cationic Surfactant (a) 0.018 grams; Cationic Surfactant (b) 0.009 grams; Cationic Surfactant (c) 0.030 grams) and the non-ionic surfactants (Non-ionic Surfactant (1) 0.003 grams; Non-ionic Surfactant (2) 0.093 grams; Non-ionic Surfactant (3) 0.001 gram) with 0.072 grams of water and 0.035 grams of miscellaneous organic solvent and then adding the low molecular weight siloxane (Siloxane (2) 0.039 grams) to the composition under stirring.
  • silicone softener polydimethylmethyl (aminoethylamino-isobutyl)siloxane with viscosity of 1,500 cs.
  • the dried textile was observed to find complete removal of the silicone softener by dropping water, and no difference between the fresh dyed textile and the redyed textile after removal of the silicone softener.

Landscapes

  • 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)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (15)

  1. Procédé de nettoyage de textiles, comprenant l'application d'une composition comprenant un siloxane linéaire à faible poids moléculaire de formule CH3((CH3)2SiO)nSi(CH3)2CH3 dans laquelle n est un entier de 1 à 7, et un tensioactif cationique choisi parmi le groupe constitué de sels de trialkylméthylammonium, de sels de dialkyldiméthylammonium et de leurs mélanges, sur des textiles tachés et le chauffage des textiles en présence d'un composé basique inorganique à une température inférieure à celle à laquelle les textiles sont détériorés.
  2. Procédé selon la revendication 1, dans lequel le tensioactif cationique est choisi parmi le groupe constitué du chlorure de trilaurylméthylammonium et du chlorure de didécyldiméthylammonium.
  3. Procédé selon la revendication 1, dans lequel la composition comprend en outre des sels d'alkylbenzyldiméthylammonium en combinaison avec le tensioactif cationique.
  4. Procédé selon la revendication 1, dans lequel le composé basique inorganique est choisi parmi le groupe constitué du NaOH, du KOH, du Na2CO3 et du NaHCO3.
  5. Procédé selon la revendication 1, dans lequel le siloxane est choisi parmi le groupe constitué de dimères, de trimères et de tétramères.
  6. Procédé selon la revendication 1, dans lequel la composition comprend en outre un tensioactif non ionique.
  7. Procédé selon la revendication 1, dans lequel la composition comprend en outre un solvant organique.
  8. Procédé selon la revendication 1, dans lequel la composition est sous la forme d'une émulsion.
  9. Procédé selon la revendication 1, dans lequel le siloxane linéaire à faible poids moléculaire et le tensioactif cationique sont présents en quantités telles qu'un rapport de siloxane à faible poids moléculaire:tensioactif cationique est dans la plage d'environ 1:25 à 25:1.
  10. Procédé selon la revendication 1, dans lequel le siloxane linéaire à faible poids moléculaire, le tensioactif cationique et le composé basique sont présents en quantités telles qu'un rapport d'une somme des quantités de siloxane à faible poids moléculaire plus le tensioactif cationique:le composé basique est dans la plage d'environ 16:1 à 16:20.
  11. Procédé selon la revendication 1, dans lequel la température est supérieure à la température ambiante.
  12. Procédé selon la revendication 11, dans lequel la température est dans la plage d'environ 80 à 100°C.
  13. Procédé selon la revendication 1, dans lequel les textiles sont chauffés pendant d'environ 30 minutes à 3 heures.
  14. Procédé selon la revendication 1, dans lequel toute tâche huileuse et/ou grasse est éliminée des textiles.
  15. Procédé selon la revendication 1, dans lequel la silicone retenue sur les textiles est éliminée des textiles.
EP99119749A 1999-08-07 1999-10-06 Procédé de nettoyage de textiles Expired - Lifetime EP1076088B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR9932449 1999-08-07
KR1019990032449A KR20010017103A (ko) 1999-08-07 1999-08-07 직물의 세탁방법

Publications (2)

Publication Number Publication Date
EP1076088A1 EP1076088A1 (fr) 2001-02-14
EP1076088B1 true EP1076088B1 (fr) 2004-05-26

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EP99119749A Expired - Lifetime EP1076088B1 (fr) 1999-08-07 1999-10-06 Procédé de nettoyage de textiles

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EP (1) EP1076088B1 (fr)
KR (1) KR20010017103A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0208695D0 (en) * 2002-04-16 2002-05-29 Unilever Plc Fabric treatment composition
GB0713799D0 (en) 2007-07-17 2007-08-22 Byotrol Llc Anti-microbial compositions
EP2190962B1 (fr) * 2007-09-17 2015-02-25 Byotrol PLC Formulations comprenant une composition antimicrobienne

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710843A (en) * 1949-09-14 1955-06-14 Dow Corning Method of removing a siloxane resinous coating from a tin surface
GB1549180A (en) * 1975-07-16 1979-08-01 Procter & Gamble Textile treating compositions
US4685930A (en) * 1984-11-13 1987-08-11 Dow Corning Corporation Method for cleaning textiles with cyclic siloxanes
DE3515077C1 (de) * 1985-04-26 1986-06-19 Hansa Textilchemie GmbH, 2806 Oyten Verfahren zum Entfernen von auf Fasern,Garnen oder flaechigen textilen Materialien befindlichen Siliconen
JP2709729B2 (ja) * 1988-11-04 1998-02-04 東レ・ダウコーニング・シリコーン株式会社 繊維糸状物用ストレート油剤組成物
MY107434A (en) * 1989-10-26 1995-12-30 Momentive Performance Mat Jp Cleaning compositions.
JP3907313B2 (ja) * 1998-04-27 2007-04-18 竹本油脂株式会社 仮撚工程に供する合成繊維用の処理剤及び合成繊維の処理方法
TW374095B (en) * 1998-10-07 1999-11-11 Dow Corning Taiwan Inc A process for cleaning textile

Also Published As

Publication number Publication date
KR20010017103A (ko) 2001-03-05
EP1076088A1 (fr) 2001-02-14

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