EP0688857B1 - Compositions de blanchiment à base d'hypochlorite - Google Patents
Compositions de blanchiment à base d'hypochlorite Download PDFInfo
- Publication number
- EP0688857B1 EP0688857B1 EP94870104A EP94870104A EP0688857B1 EP 0688857 B1 EP0688857 B1 EP 0688857B1 EP 94870104 A EP94870104 A EP 94870104A EP 94870104 A EP94870104 A EP 94870104A EP 0688857 B1 EP0688857 B1 EP 0688857B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- fabrics
- periodate
- bleaching
- hypochlorite
- 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
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- 239000000203 mixture Substances 0.000 title claims abstract description 136
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000004061 bleaching Methods 0.000 title claims abstract description 41
- 239000004744 fabric Substances 0.000 claims abstract description 80
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000003139 buffering effect Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000001556 precipitation Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 20
- -1 alkali metal hypochlorite Chemical class 0.000 claims description 20
- 229910052783 alkali metal Inorganic materials 0.000 claims description 15
- JQWHASGSAFIOCM-UHFFFAOYSA-M sodium periodate Chemical compound [Na+].[O-]I(=O)(=O)=O JQWHASGSAFIOCM-UHFFFAOYSA-M 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 10
- 150000005323 carbonate salts Chemical class 0.000 claims description 8
- 150000004760 silicates Chemical class 0.000 claims description 8
- 239000007844 bleaching agent Substances 0.000 claims description 6
- 239000003599 detergent Substances 0.000 claims description 6
- 239000004530 micro-emulsion Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000005406 washing Methods 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000000243 solution Substances 0.000 description 8
- 239000005708 Sodium hypochlorite Substances 0.000 description 5
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 5
- 229910021645 metal ion Inorganic materials 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 241000894007 species Species 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- ICIWUVCWSCSTAQ-UHFFFAOYSA-N iodic acid Chemical class OI(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- MLIWQXBKMZNZNF-KUHOPJCQSA-N (2e)-2,6-bis[(4-azidophenyl)methylidene]-4-methylcyclohexan-1-one Chemical compound O=C1\C(=C\C=2C=CC(=CC=2)N=[N+]=[N-])CC(C)CC1=CC1=CC=C(N=[N+]=[N-])C=C1 MLIWQXBKMZNZNF-KUHOPJCQSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical class [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002497 iodine compounds Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- FJVZDOGVDJCCCR-UHFFFAOYSA-M potassium periodate Chemical class [K+].[O-]I(=O)(=O)=O FJVZDOGVDJCCCR-UHFFFAOYSA-M 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 description 1
- 235000018341 sodium sesquicarbonate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
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
- C11D3/395—Bleaching agents
- C11D3/3951—Bleaching agents combined with specific additives
-
- 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
- C11D3/395—Bleaching agents
- C11D3/3956—Liquid compositions
Definitions
- the present invention relates to a liquid bleaching composition which is suitable for laundry applications including hand washing as well as washing with automatic washing machines.
- Liquid bleaching compositions are well-known in the art. Amongst the different bleaching compositions available, those relying on bleaching by hypochlorite are often preferred, mainly for performance reasons. Representative of the art is, for example, WO-A-88/05461 which discloses an aqueous composition comprising hypochlorite, sodium carbonate and sodium hydroxide and the use of said composition for removing stains from the fabrics.
- hypochlorite bleach compositions comprising a periodate, or mixtures thereof.
- the compositions used in the present invention provide outstanding fabric safety as well as fabric whiteness on the fabrics treated therewith. Indeed, it has been found that for any given composition comprising an alkali metal hypochlorite, adding periodate will improve both the fabric safety and the fabric whiteness on the fabrics treated therewith.
- the hypochlorite bleach compositions herein further comprise a buffering/precipitation system, e.g. carbonate salts and/or silicate salts.
- compositions of the present invention are that on top of their fabric safety properties and whitening action said compositions allow also good stain removal.
- EP-A-0079102 describes coloured aqueous alkalimetal-hypochlorite compositions. 102 discloses periodate as stabilizers in said compositions. Fabric safety or fabric whiteness improvement linked to the hypochlorite-containing composition comprising periodate is not disclosed.
- US-A-4 065 545 relates to the stabilization of aqueous hypochlorite solutions.
- This patent discloses solutions of hypochlorite comprising up to 0.1% by weight of periodate ions.
- said solutions may also contain silicate ions and/or caustic soda and/or sodium carbonate.
- EP-A-0565788 relates to dishwashing detergent compositions, which are stabilized by iodates. Said iodates react with hypochlorite to periodates. Again fabric safety or fabric whiteness improvement linked to the hypochlorite-containing composition comprising periodate is not disclosed.
- EP-A- 478086 discloses microemulsion detergent compositions comprising hypochlorite and having a pH of at least 12 Said compositions further comprise amongst other components, sodium carbonate, alkali metal hydroxide and from 0.01% to 0.3% by weight of an alkali metal periodate, such as potassium periodate or sodium periodate. Periodate is included in the microemulsion compositions for its stabilizing effect on hypochlorite.
- This patent application further discloses that the compositions therein are alipurpose cleaning compositions particularly adapted to the cleaning of hard-surfaces. Laundry application is also mentioned.
- the present invention encompasses the use of a periodate in a liquid bleaching composition having a pH as is of from 9 to 14 comprising an alkali metal hypochlorite and more than 0.1% by weight of the total composition of said periodate, for bleaching fabrics, whereby fabric safety and/or fabric whileness are improved.
- compositions according to the present invention further comprise a buffering/precipitation system, preferably carbonate salts and/or silicate salts.
- the present invention further encompasses a method of bleaching fabrics to improve fabric safety and/or fabric whiteness which comprises the step of contacting said fabrics with an aqueous liquid hypochlorite bleach composition having a pH as is of from 9 to 14 and comprising more than 0.1% by weight of the total composition of a periodate, said bleaching composition being in its diluted form and not being in the form of a microemulsion.
- the compositions used in said method further comprise a buffering/precipitation system, preferably carbonate salts and/or silicate salts.
- compositions used in the present invention comprise an alkali metal hypochlorite.
- alkali metal hypochlorite Various forms of alkali metal hypochlorite are commercially available and, although this is not critical for the present invention, it is preferred herein to use sodium hypochlorite.
- Compositions used in the present invention comprise a bleaching amount of alkali metal hypochlorite, which typically represents from 2% to 10% by weight of the total composition, based on active chlorine, of alkali metal hypochlorite.
- Preferred compositions herein comprise from 3% to 6%, based on active chlorine, of alkali metal hypochlorite.
- the compositions used in the present invention comprise a periodate, or mixtures thereof.
- the periodates may be added as such or may be made in situ by any suitable reactions of appropriate iodine compounds.
- suitable periodates for use in the present compositions include alkali metal periodates such as sodium and potassium periodates. Preferred herein is to use sodium periodate.
- the compositions used in the present invention comprise more than 0.1 % by weight of the total composition of said periodate, or mixtures thereof, preferably of from 0.11% to 2% and more preferably of from 0.11% to 1.5%.
- periodate ions coming from the dissociation of periodates have an action which allows to improve the fabric safety and the fabric whiteness of fabrics contacted with an aqueous liquid hypochlorite-containing composition comprising said periodates.
- said periodate ions allow to reduce or even eliminate the metal impurities both in said compositions as is and especially in the washing environment.
- Said metal impurities include heavy metal ions such as Cu, Fe, Ni, Co and the like, and have been found to adversely affect both fabric safety and fabric whiteness.
- the above mentioned action of periodate ions is sustained by the presence of a buffering/precipitation system as herein after defined.
- said buffering/precipitation system allows to remove from the washing solution magnesium and calcium which would otherwise bind to periodate ions, and thus partially inactivate them. Additionally, said buffering/precipitation system prevents the pH drop in the washing solution to values at which periodate ions become no longer stable and decompose.
- metal ions catalyze the attack of hypochlorous acid on fabrics with the generation of yellow oxidized species.
- said metal ions are adsorbed per se on oxidized fabrics as colored species and catalyze the degradation of the brighteners adsorbed on fabrics.
- said metal ions stabilize colored pigments of enzymatic stains such as blood and grass.
- said metal ions catalyze the depolymerisation of cotton fibers which leads to reduced tensile strength of the fabrics, thereby reducing fabrics resistance.
- the compositions used in the present invention have a pH as is of from 9 to 14, preferably of from 9.5 to 13 and more preferably of from 9.5 to 12.
- Suitable means to achieve such pH value include strong sources of alkalinity.
- the compositions herein comprise less than 2% by weight of the total composition of a strong source of alkalinity, or mixtures thereof, preferably of from 0.04% to 1.5% and more preferably of from 0.5% to 0.9%.
- strong sources of alkalinity are alkali metal hydroxides, such as potassium and/or sodium hydroxide, or alkali metal oxides such as sodium and/or potassium oxide, or mixtures thereof.
- compositions of the present invention may further comprise a buffering/precipitation system.
- a buffering/precipitation system Particularly suitable to be used herein are silicate or carbonate salts, or mixtures thereof.
- Preferred alkali metal salts of silicate and carbonate are sodium silicate and sodium carbonate, both of which are commercially available, or mixtures thereof.
- Other precipitation/buffering systems could be conveniently used herein such as sodium borate and sodium sesquicarbonate.
- any buffering/precipitation system having the property of keeping the pH above the value 8 when following a dilution of 0.3 to 1.7 % is suitable to be used in the present invention.
- compositions herein comprise up to 5% by weight of the total composition of a carbonate salt, or mixtures thereof, preferably from 0.1% to 4% and more preferably from 0.1% to 3% and up to 5% by weight of the total composition of a silicate salt, or mixtures thereof, preferably from 0.1% to 4% and more preferably from 0.2% to 3%.
- said buffering/precipitation system allows buffering of the pH of the present compositions.
- the pH of a composition according to the present invention remains constant throughout use, i.e. the pH of a diluted composition is buffered from the moment the dilution is completed and until said hypochlorite bleaching composition is started to be rinsed away from the fabrics to which it has previously been contacted.
- the improvement in fabric safety is optimized by the presence of said buffering/precipitation system, which by its buffering action, reduces the conversion of hypochlorite into hypochlorous acid, a species which we have found to be responsible for the fabric damage.
- the buffering of the hypochlorite compositions of the present invention reduces harshness to hands. Also said buffering/precipitation system removes from the wash solution calcium and magnesium.
- compositions used in the present invention are aqueous liquid bleaching compositions. Accordingly, such compositions comprise typically from 70% to 97% by weight of the total composition of water, preferably from 75% to 96% and more preferably from 78% to 94%.
- compositions used in the present invention may further comprise optional ingredients such as bleach-stable surfactants, organic or inorganic alkalis, pigments, dyes, optical brighteners, solvents, chelating agents, radical scavengers, perfumes and bleach-stable perfume stabilizers.
- optional ingredients such as bleach-stable surfactants, organic or inorganic alkalis, pigments, dyes, optical brighteners, solvents, chelating agents, radical scavengers, perfumes and bleach-stable perfume stabilizers.
- compositions used in the present invention provide improved fabric safety as well as improved fabric whiteness.
- improved fabric safety it is meant herein that the damage caused on fabric by using the hypochlorite compositions of the present invention is reduced compared to the damage caused by using the same hypochlorite compositions but without any periodate.
- improved fabric whiteness it is meant herein that the whiteness on fabric achieved by using the hypochlorite compositions of the present invention is improved compared to the whiteness obtained by using the same hypochlorite compositions but without any periodate.
- compositions used in the present invention are used in diluted form in laundry application.
- the expression "use in diluted form” herein includes dilution by the user, which occurs for instance in hand laundry applications, as well as dilution by other means, such as in a washing machine. Typical dilution levels are of from 0.4% to 20% for hand laundry application and 0.1% to 10% in a washing machine.
- the present invention further encompasses a method of bleaching fabrics which comprises the step of contacting said fabrics with an aqueous bleaching composition having a pH as is of from 9 to 14 which comprises an alkali metal hypochlorite, or mixtures thereof and more than 0.1% by weight of the total composition of a periodate, or mixtures thereof, said bleaching composition being in its diluted form and not being in the form of a microemulsion.
- the compositions used in said method of bleaching fabrics may further comprise a buffering/precipitation system, preferably carbonate salts and/or silicate salts. Said method according to the present invention improves the fabric safety and/or fabric whiteness.
- the method of bleaching fabrics according to the present invention comprises the steps of first contacting said fabrics with an aqueous bleaching composition having a pH as is of from 9 to 14 which comprises an alkali metal hypochlorite, or mixtures thereof and a periodate, or mixtures thereof, then allowing said fabrics to remain in contact with said bleaching composition, for a period of time sufficient to bleach said fabrics, typically 3 to 60 minutes, preferably 5 to 30 minutes, then rinsing said fabrics in water to remove said bleaching composition. If said fabrics are to be washed, i.e. with a conventional composition comprising at least one surface active agent, it is preferred to perform the method herein before said fabrics are washed.
- said method according to the present invention further comprises a subsequent step where said fabrics are washed with a detergent composition comprising at least one surface active agent.
- compositions are made by mixing the listed ingredients in the listed proportions: Compositions (weight %) 1 2 Sodium hypochlorite 5.0 5.0 Sodium hydroxide 0.7 0.7 Sodium carbonate 1.0 1.0 Sodium periodate --- 0.5 Water --------100%------------- pH 13 13
- Composition 1 is a hypochlorite-containing composition taken as a reference and commercially available.
- Composition 2 is representative of the present invention, i.e. composition 2 comprises sodium hypochlorite, a buffering/precipitation system (sodium carbonate) and sodium periodate.
- a multicycle test has been carried out.
- a washing was performed in a glass beaker at 70°C for 45 minutes with a washing solution comprising 12.5 g/l of a composition herein before mentioned. Then the ribbons were added into the washing solution. At the end of each washing cycle the ribbons were rinsed. After 3 washing cycles the damage on the fabrics was evaluated by puling said ribbons until they broke. The force necessary to break the ribbons was measured with an Instron tensilometer. The lower the force needed to break said ribbons, the more serious is the damage caused on the fabrics.
- composition 2 aqueous composition of the present invention comprising sodium hypochlorite, sodium carbonate and sodium periodate
- composition (weight %) 1 Sodium hypochlorite 5.0 Sodium hydroxide 0.7 Sodium carbonate 1.0 Sodium silicate 1.0 Sodium periodate 0.3 Water up to 100% pH 13
- Composition 1 allows to obtain outstanding fabric safety as well as outstanding fabric whiteness, when used to bleach fabrics. This composition is suitable to be used in hand washing applications as well as in washing with automatic washing machines.
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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)
- Detergent Compositions (AREA)
Claims (11)
- Utilisation d'un periodate dans une composition de blanchiment liquide aqueuse ayant un pH, telle quelle, de 9 à 14, comprenant un hypochlorite de métal alcalin et plus de 0,1 % en poids, par rapport à la composition totale, dudit periodate, pour le blanchiment de tissus, en conséquence de quoi la protection des tissus et/ou la blancheur des tissus sont améliorées.
- Procédé de blanchiment de tissus pour améliorer la protection des tissus et/ou la blancheur des tissus, qui comprend l'étape consistant à mettre ledit tissu en contact avec une composition de blanchiment liquide aqueuse ayant un pH, telle quelle, de 9 à 14, comprenant un hypochlorite de métal alcalin et plus de 0,1 % en poids, par rapport à la composition totale, d'un periodate, ladite composition de blanchiment étant sous sa forme diluée et n'étant pas sous la forme d'une micro-émulsion.
- Procédé de blanchiment de tissus selon la revendication 2 qui, après l'étape de mise en contact desdits tissus avec ladite composition de blanchiment, comprend en outre les étapes consistant à :laisser lesdits tissus rester en contact avec ladite composition de blanchiment pendant une période de temps suffisante pour blanchir lesdits tissus,puis rincer lesdits tissus dans de l'eau pour éliminer ladite composition de blanchiment.
- Procédé selon la revendication 3, qui comprend en outre une étape suivante dans laquelle lesdits tissus sont lavés avec une composition détergente comprenant au moins un agent tensioactif.
- Procédé ou utilisation selon l'une quelconque des revendications précédentes, dans lequel ladite composition de blanchiment comprend de 2 % à 10 % et de préférence de 3 % à 6 % en poids, par rapport à la composition totale et sur la base du chlore actif, d'hypochlorite.
- Procédé ou utilisation selon l'une quelconque des revendications précédentes, dans lequel, dans ladite composition de blanchiment. ledit periodate est un periodate de métal alcalin, de préférence le periodate de sodium.
- Procédé ou utilisation selon l'une quelconque des revendications précédentes, dans lequel ladite composition de blanchiment comprend de 0,11 % à 2 % et de préférence de 0,11 % à 1,5 % en poids, par rapport à la composition totale, dudit periodate ou de mélanges de tels periodates.
- Utilisation ou procédé selon l'une quelconque des revendications précédentes, dans lequel ladite composition de blanchiment comprend en outre un système de tampon/précipitation.
- Utilisation ou procédé selon la revendication 8, dans lequel ledit système de tampon/précipitation comprend des sels carbonates, des sels silicates ou des mélanges de ceux-ci.
- Utilisation ou procédé selon la revendication 9, dans lequel ladite composition de blanchiment comprend jusqu'à 5 %, de préférence de 0,11 % à 4 %, mieux encore de 0,1 % à 3 % en poids, par rapport à la composition totale, de carbonate de sodium. et dans lequel ledit sel carbonate est de préférence du carbonate de sodium, et jusqu'à 5 %, de préférence de 0,11 % à 4 %, et mieux encore de 0,2 % à 3 % en poids, par rapport à la composition totale, d'un sel silicate, et dans lequel ledit sel silicate est de préférence du silicate de sodium.
- Procédé ou utilisation selon l'une quelconque des revendications précédentes, dans lequel ladite composition de blanchiment a un pH, telle quelle, de 9,5 à 13 et de préférence de 9,5 à 12.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69421609T DE69421609T2 (de) | 1994-06-24 | 1994-06-24 | Hypochloritbleichmittelzusammensetzungen |
ES94870104T ES2138061T3 (es) | 1994-06-24 | 1994-06-24 | Composiciones blanqueadoras de hipoclorito. |
AT94870104T ATE186565T1 (de) | 1994-06-24 | 1994-06-24 | Hypochloritbleichmittelzusammensetzungen |
DK94870104T DK0688857T3 (da) | 1994-06-24 | 1994-06-24 | Hypochloritblegesammensætninger |
PT94870104T PT688857E (pt) | 1994-06-24 | 1994-06-24 | Composicoes branqueadoras de hipoclorito |
EP94870104A EP0688857B1 (fr) | 1994-06-24 | 1994-06-24 | Compositions de blanchiment à base d'hypochlorite |
PCT/US1995/007663 WO1996000188A1 (fr) | 1994-06-24 | 1995-06-20 | Compositions de blanchiment a base d'hypochlorite |
JP8503240A JPH10502121A (ja) | 1994-06-24 | 1995-06-20 | 次亜塩素酸塩漂白組成物 |
MX9700077A MX9700077A (es) | 1994-06-24 | 1995-06-20 | Composiciones blanqueadoras de hipoclorito. |
CN95193775A CN1048694C (zh) | 1994-06-24 | 1995-06-20 | 次氯酸盐漂白组合物 |
GR990403008T GR3031918T3 (en) | 1994-06-24 | 1999-11-19 | Hypochlorite bleaching compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94870104A EP0688857B1 (fr) | 1994-06-24 | 1994-06-24 | Compositions de blanchiment à base d'hypochlorite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0688857A1 EP0688857A1 (fr) | 1995-12-27 |
EP0688857B1 true EP0688857B1 (fr) | 1999-11-10 |
Family
ID=8218652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94870104A Expired - Lifetime EP0688857B1 (fr) | 1994-06-24 | 1994-06-24 | Compositions de blanchiment à base d'hypochlorite |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0688857B1 (fr) |
JP (1) | JPH10502121A (fr) |
CN (1) | CN1048694C (fr) |
AT (1) | ATE186565T1 (fr) |
DE (1) | DE69421609T2 (fr) |
DK (1) | DK0688857T3 (fr) |
ES (1) | ES2138061T3 (fr) |
GR (1) | GR3031918T3 (fr) |
MX (1) | MX9700077A (fr) |
PT (1) | PT688857E (fr) |
WO (1) | WO1996000188A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8703689B2 (en) | 2009-01-13 | 2014-04-22 | Kik Custom Products Inc. | Hypochlorite composition with enhanced fabric and equipment safety benefits |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU4921896A (en) * | 1995-03-03 | 1996-09-23 | Procter & Gamble Company, The | Cleaning compositions with reduced skin malodor |
US6297209B1 (en) | 1996-05-10 | 2001-10-02 | The Clorox Company | Sequesterants as hypochlorite bleach enhancers |
EP0905225B1 (fr) * | 1997-09-19 | 2006-11-08 | The Procter & Gamble Company | Procédés pour le blanchissage du linge |
WO1999053013A1 (fr) * | 1998-04-09 | 1999-10-21 | Unilever Plc | Blocs nettoyants pour w-c |
CA2320170A1 (fr) * | 1998-04-09 | 1999-10-21 | Roberto Tummiolo | Blocs nettoyants pour w-c |
GB0222501D0 (en) * | 2002-09-27 | 2002-11-06 | Unilever Plc | Composition and method for bleaching a substrate |
ATE520767T1 (de) * | 2008-04-25 | 2011-09-15 | Procter & Gamble | Gefärbte bleichmittelzusammensetzung |
CN102877287B (zh) * | 2012-10-19 | 2014-12-17 | 常州大学 | 一种含卤胺的抗菌纤维素织物的制备方法 |
CN107299521A (zh) * | 2016-04-08 | 2017-10-27 | 中国石化仪征化纤有限责任公司 | 用于聚酰胺酯纤维及其织物的漂白剂及其常温漂白方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1508272A (en) * | 1976-01-29 | 1978-04-19 | Ici Ltd | Periodate stabilised hypochlorites |
US4120650A (en) * | 1977-12-05 | 1978-10-17 | Basf Wyandotte Corporation | Laundering process for dual bleaching stained fabrics |
US4474677A (en) * | 1981-11-06 | 1984-10-02 | Lever Brothers Company | Colored aqueous alkalimetal hypochlorite compositions |
DE3418109A1 (de) * | 1984-05-16 | 1985-11-21 | Basf Ag, 6700 Ludwigshafen | Verfahren zum bleichen von baumwollhaltigen geweben mit hypochlorit bei hoeheren temperaturen |
WO1988005461A1 (fr) * | 1987-01-23 | 1988-07-28 | Molony Donald P | Composition de carbonate de sodium/hydroxyde de sodium/hypochlorite de sodium et procede de detachage |
US4852990A (en) * | 1987-08-24 | 1989-08-01 | The Virkler Company | Process for bleaching denim fabrics and garments |
US5185096A (en) * | 1991-03-20 | 1993-02-09 | Colgate-Palmolive Co. | Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and bleach stabilizer |
US5236614A (en) * | 1990-09-25 | 1993-08-17 | Colgate-Palmolive Company | Stable microemulsion disinfecting detergent composition |
EP0565788A1 (fr) * | 1992-04-15 | 1993-10-20 | Colgate-Palmolive Company | Composition détergente aqueuse liquide pour le lavage automatique de la vaisselle contenant un agent de blanchiment à base d'hypochlorite et un stabilisateur de blanchiment |
-
1994
- 1994-06-24 EP EP94870104A patent/EP0688857B1/fr not_active Expired - Lifetime
- 1994-06-24 PT PT94870104T patent/PT688857E/pt unknown
- 1994-06-24 AT AT94870104T patent/ATE186565T1/de not_active IP Right Cessation
- 1994-06-24 DK DK94870104T patent/DK0688857T3/da active
- 1994-06-24 ES ES94870104T patent/ES2138061T3/es not_active Expired - Lifetime
- 1994-06-24 DE DE69421609T patent/DE69421609T2/de not_active Expired - Fee Related
-
1995
- 1995-06-20 JP JP8503240A patent/JPH10502121A/ja active Pending
- 1995-06-20 MX MX9700077A patent/MX9700077A/es unknown
- 1995-06-20 WO PCT/US1995/007663 patent/WO1996000188A1/fr active Application Filing
- 1995-06-20 CN CN95193775A patent/CN1048694C/zh not_active Expired - Fee Related
-
1999
- 1999-11-19 GR GR990403008T patent/GR3031918T3/el unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8703689B2 (en) | 2009-01-13 | 2014-04-22 | Kik Custom Products Inc. | Hypochlorite composition with enhanced fabric and equipment safety benefits |
Also Published As
Publication number | Publication date |
---|---|
CN1151148A (zh) | 1997-06-04 |
PT688857E (pt) | 2000-04-28 |
GR3031918T3 (en) | 2000-03-31 |
ATE186565T1 (de) | 1999-11-15 |
DE69421609T2 (de) | 2000-06-29 |
DK0688857T3 (da) | 2000-04-10 |
CN1048694C (zh) | 2000-01-26 |
EP0688857A1 (fr) | 1995-12-27 |
JPH10502121A (ja) | 1998-02-24 |
MX9700077A (es) | 1997-04-30 |
ES2138061T3 (es) | 2000-01-01 |
DE69421609D1 (de) | 1999-12-16 |
WO1996000188A1 (fr) | 1996-01-04 |
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