EP2009175A2 - Mélange destiné à la décoloration et/ou au délavage du linge - Google Patents

Mélange destiné à la décoloration et/ou au délavage du linge Download PDF

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Publication number
EP2009175A2
EP2009175A2 EP08010663A EP08010663A EP2009175A2 EP 2009175 A2 EP2009175 A2 EP 2009175A2 EP 08010663 A EP08010663 A EP 08010663A EP 08010663 A EP08010663 A EP 08010663A EP 2009175 A2 EP2009175 A2 EP 2009175A2
Authority
EP
European Patent Office
Prior art keywords
mixture according
sodium
agent
ammonium
disulfite
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.)
Granted
Application number
EP08010663A
Other languages
German (de)
English (en)
Other versions
EP2009175B1 (fr
EP2009175A3 (fr
Inventor
Uwe Dr. Gibbels
Rüdiger Nentwig
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.)
Brauns Heitmann GmbH and Co KG
Original Assignee
Brauns Heitmann GmbH and Co KG
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 Brauns Heitmann GmbH and Co KG filed Critical Brauns Heitmann GmbH and Co KG
Publication of EP2009175A2 publication Critical patent/EP2009175A2/fr
Publication of EP2009175A3 publication Critical patent/EP2009175A3/fr
Application granted granted Critical
Publication of EP2009175B1 publication Critical patent/EP2009175B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C11D3/0042—Reducing agents
    • 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
    • C11D3/3953—Inorganic bleaching agents
    • 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
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/30—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using reducing agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/13—Fugitive dyeing or stripping dyes
    • D06P5/134—Fugitive dyeing or stripping dyes with reductants

Definitions

  • the present invention relates to a mixture for decolorization and / or degumming of items of laundry, in particular for household purposes.
  • Detoxifiers for the preparation of generic mixtures are known from the prior art.
  • DE 38 31 098 C2 is a drug combination for means for decolorization, removal of false coloration and lightening of dyed textiles known which contains thiourea dioxide and two each powdery free-flowing, packed until used in a container separated from each other and immediately before use to form a liquor together in an aqueous solution to be converted components, wherein the one component forms the thiourea dioxide and the other component consists of a concentration in a certain concentration ratio to the concentration of thiourea dioxide concentration of a reacting in aqueous solution alkaline substance.
  • the alkaline substance is in particular sodium carbonate.
  • EP 0 615 018 A1 discloses a Textilentfärber, especially for household purposes, which forms an alkaline decolorizing liquor for decolorizing textiles in aqueous solution.
  • the Textilentfärber disclosed therein is characterized by a storable powder mixture also with thiourea dioxide as decolorizing active ingredient, further with sodium carbonate or other water-soluble carbonate or bicarbonate of the alkali metals as alkali carriers and with a defoamer for discharging oxygen from the decolorizing liquor or with a deflagration in the decolorizing liquor ,
  • the decolorizer mixture preferably contains from 3% to 25% by weight of thiourea dioxide.
  • the antifoam or anti-foaming agent may be a silicone, siloxane or else a long-chain alcohol, a highly polymeric glycol, a fatty acid polyglycol ester or a trialkylmethylamine.
  • decolorizers based on sodium dithionite z. B. the DE 195 03 480 A1 a method for decolorizing textile materials and a decolorizer suitable therefor, said decolorizer being preferably composed of a reductive bleaching agent in an amount of from 20% to 50% by weight, an alkali donor in an amount of from 35% to 75% by weight, an extender in an amount of 0% to 45% by weight and an optical brightener in an amount of 0% to 3% by weight.
  • Sodium dithionite is used as the reductive bleach, and the alkaline dispenser comprises sodium bicarbonate and / or sodium carbonate.
  • mixtures with 50% by weight of sodium dithionite and 50% by weight of sodium carbonate are mixtures which always contain sodium bicarbonate in addition to sodium carbonate.
  • sodium carbonate and sodium bicarbonate may be present in approximately equal amounts, but it is also possible to use sodium bicarbonate in excess in relation to the sodium carbonate.
  • a disadvantage of the teaching of DE 195 03 480 A1 is that in the mixtures disclosed there with sodium bicarbonate due to a reaction with the sodium dithionite it can come in individual cases to self-heating of the mixture, so that these mixtures are not marketable.
  • the mixture disclosed therein, which does not contain sodium hydrogencarbonate has a relatively high pH, which is strongly alkaline.
  • the blue speckles which are also known in the case of discolourizers based on thiourea dioxide occur.
  • a mixture for decolorizing and / or dehumidifying laundry articles comprising from about 5 g / l to about 30 g / l of at least one dithionite-containing bleach and from about 1 g / l to about 25 g / l of at least one disulfide-containing agent.
  • a disulfite-containing agent By using a disulfite-containing agent, the pH of the mixture according to the invention, unlike those known from the prior art mixtures, is shifted into the slightly acidic range. It is advantageously avoided that sulfur dioxide is formed, which usually forms in the acidic range from the decomposition of the dithionite-containing bleaching agent. In addition, advantageously the formation of blue speckles on the laundry is avoided.
  • a number of the mixtures according to the invention of sodium dithionite, sodium disulfite and / or sodium carbonate and / or sodium bicarbonate do not pose the risk of self-heating.
  • the mixture comprises the dithionite-containing bleaching agent in an amount of about 5 g / l to about 20 g / l.
  • a dithionite bleaching agent in an amount of about 40 g to about 250 g is used.
  • the bleach is preferably sodium dithionite, but other dithionitance compounds can be used, such as ammonium compounds or other alkali metal compounds.
  • the mixture according to the invention comprises the disulphite-containing agent in an amount of from about 2 g / l to about 10 g / l, corresponding to the abovementioned commercial liquor levels in an amount of from about 16 g to about 125 g of the disulphide-containing agent.
  • the disulfite-containing agent is preferably selected from a group comprising sodium disulfite, ammonium disulfite and / or potassium disulfite, with sodium disulfite being particularly preferred.
  • the mixture according to the invention preferably further comprises at least one alkali agent.
  • the alkali agent is advantageously selected from a group comprising sodium carbonate, sodium bicarbonate, ammonium carbonate, ammonium bicarbonate, potassium carbonate, potassium bicarbonate, trisodium phosphate, sodium hydroxide and / or sodium sesquicarbonate.
  • the added alkali agent causes the pH of the liquor to drop to a value below 4 due to the pH reduction during the decolorization process, thus avoiding possible corrosion damage to a washing machine used for decolorization.
  • the alkali agent is used in a concentration which is about the same size as the concentration of the dithionite-containing agent.
  • a ratio of the concentrations of alkali agent to dithionit restroomm agent in a range of about 2: 1 to 1: 2 leads to good Entkärberoughn.
  • the amount of the alkali agent used is preferably in a range of about 2 g / l to about 20 g / l.
  • sodium bicarbonate and / or sodium carbonate is used as the alkali agent.
  • the pH of an aqueous solution of the mixture according to the invention is advantageously before decolorization in a range from about 5 to about 9, more preferably in a range from about 6 to about 8.5.
  • the aqueous solution of the mixture according to the invention has a pH greater than about 4.5, preferably a pH in the range of about 5 to about 6 or 6.5.
  • this acidic pH of the aqueous solution of the mixture according to the invention after decolorization it is ensured, in particular with the addition of blue-spot suppressors, that the formation of blue speckles on the items to be decolorized / de-scrubbed is avoided.
  • the mixture according to the invention also comprises extenders, fragrances, odor inhibitors, sulfite scavengers, surfactants of any kind, corrosion inhibitors and / or blue spot suppressors.
  • an extender is preferably selected from a group comprising sodium sulfate, ammonium sulfate, sodium chloride, ammonium chloride, ammonium acetate and / or diammonium hydrogen phosphate.
  • the extender may be present in concentrations of up to 30 g / l in the aqueous mixture. It is preferred to use those extenders which have ammonium cations. Particularly preferred as the diluent sodium sulfate and / or ammonium sulfate.
  • Fragrances and odor inhibitors may be present alone or in mixtures in concentrations ranging from 0.001 g / l to about 0.6 g / l in the mixture according to the invention.
  • Preferred fragrances are the fragrance oils known from the prior art.
  • Particularly preferred linalool (3,7 dimethyl-1,6-octadien-3-ol) can be used, because this is able to mark the unpleasant odors occurring during the Entfärbevorgang based on sulfur-containing odor and thus to increase the effect of other perfumes .
  • Sulfitflinder can be used in particular acetone, formaldehyde, reducible sugars, such as glucose and fructose, and non-reducible sugars such.
  • B. cane sugar. It has been found that particularly suitable as sulfite scavengers are cane sugar, sodium ascorbate and / or sodium thiosulfate, since these least affect the decolorization performance of the mixture according to the invention.
  • the mixture according to the invention particularly preferably comprises at least one blue spot suppressor selected from a group comprising at least one quaternary ammonium compound and / or at least one polyvinylpyrrolidone.
  • Blau Vietnamese bansuppressoren in the context of the present invention are substances or mixtures of substances to understand that can help prevent the undesirable occurrence of blue dots or speckles continue to suppress or reduce their number in a significant manner.
  • polyvinylpyrrolidone is understood as meaning both copolymers and block copolymers and random-block copolymers, but also polyvinylpolypyrrolidones (PVPP, short name: crospovidone).
  • PVPP polyvinylpolypyrrolidones
  • Crospovidones are insoluble, cross-linked polyvinylpyrrolidones which form on heating vinylpyrrolidone with alkalis or divinyl compounds as so-called "popcorn polymers". The use of such polyvinylpyrrolidone derivatives is particularly preferred for the purposes of the present invention.
  • blue spot suppressors comprising at least one quaternary ammonium compound and at least one polyvinylpyrrolidone.
  • Preferred blue dot suppressors according to the present invention are shown in Table 1 below. Table 1: Blue spot suppressors Surname Manufacturer Synonym (s) / Altemative name chemical formula CAS-No.
  • Chromabond S 403 ISP GLOBAL TECHNOLOGIES (GERMAN LAND) GMBH Sicil-Hoffmann-Str. 1 a 50996 Cologne Polyvinyl pyridine-N-oxide 58984-27-3 Chromabond S 400 ISP Polyvinyl pyridine-N-oxide 58984-27-3 Sandopur DK fl genamine CTAC Clariant Fatty alcohol polyglycol ether, polyamine derivative cetyltrimethylammonium chloride - 112-02-7 Duralkan RN Thor GmbH Landwehr-str.
  • the blue dot suppressor in selecting a quaternary ammonium compound selected from a group comprising dimethyl-substituted quaternary ammonium compounds, more preferably being dialkyl-dimethyl and / or monoalkyl-monobenzyl-dimethyl-substituted quaternary ammonium compounds.
  • the alkyl radical of the quaternary ammonium compound preferably consists of linear and / or branched carbon chains having 4 to 20 carbon atoms.
  • the blue spot suppressor is preferably present as the chloride salt.
  • the mixture according to the invention may comprise other customary substances which are also added to detergents.
  • the Entfärbermischung z. B. optical brightener since they do not adversely lead to the formation of blue speckles due to the provision of a Blau Vietnamesesuppressors in Entfärbermischung invention.
  • enzymes, foam inhibitors, plasticizers and other auxiliaries may be added to the decolorizer mixture.
  • a mixture comprising about 10 g / l to about 20 g / l sodium dithionite as bleach, about 2 g / l to about 10 g / l sodium disulfite as disulfit instance and about 2 g / l to about 10 g / l sodium carbonate and / or sodium bicarbonate as the alkali agent. More preferably, such a mixture may comprise a blue spot suppressor selected from the group of polyvinylpyrrolidones and / or quaternary ammonium compounds in an amount of from 0.1 g / l to about 0.3 g / l.
  • the present invention relates to a method for decolorization and / or degasification of laundry, in particular for household purposes, wherein a mixture according to the invention placed in a washing machine and then carried out at a temperature of at least about 30 ° C, the decolorization over a period of at least 10 seconds becomes.
  • a temperature of at least about 30 ° C the decolorization over a period of at least 10 seconds becomes.
  • the decolorization proceeds faster.
  • the decolorization process will be completed in about 10 to 20 seconds
  • a temperature in a range of about 40 ° C to about 50 ° C the decolorization process will be practically completed after about 2 to 3 minutes.
  • the mixture according to the invention can also be used such that the decolorization is not carried out in a washing machine but, for example, in a bucket, in which case the mixture according to the invention is first dissolved in water at a specific temperature and then the items to be decolored are placed in the container ,
  • a particular advantage of the mixture according to the invention is that it can be entered directly into the drum at the beginning of the washing process in a washing machine or in the usual filling. To achieve optimum decolorization performance, it is therefore not necessary, as known from the prior art, to add a decolorizer mixture only after heating the water about 10 to 15 minutes after the start of the washing program of the washing machine.
  • the mixture according to the invention is therefore characterized by an extremely simple, customary detergents adapted handling.
  • the decolorization and degumming performances of various blends of the invention were tested for cotton fabric.
  • the usual cotton fabric with a Size of 1.5 x 2.2 m was purchased from the company Setex-Textil-GmbH, Franken Avenue 15, 46499 Hamminkeln, Germany, wherein the cotton fabric was bleached with an optical brightener. This corresponds approximately to a fabric, as is commonly used for bedsheets.
  • the cotton fabric was dyed with the following true colors based on reactive dyes (A - F) or direct colors (G - I) (as solid color or 1/100 color tone) (the following data refer to a sheet of 1.5 ⁇ 2 , 2 m in full-tone coloring, for a 1/100 tone coloring, the quantities must be reduced accordingly): A.
  • the aforementioned dyes were purchased from Dystar Textile Colors Gmbh & Co. KG, Cologne.
  • the mixtures B, F and I are used in a washing machine AEG ⁇ ko-Lavamat 85739, the mixtures A, D, G in a washing machine Miele Novotronic W 531, the mixtures C, E and H in a washing machine AEG ⁇ ko-Lavamat 70529 in a fleet quantity of 12.5 liters and a temperature of 30 ° C using the aforementioned color mixtures A - each dyed cotton fabric pieces, the amount of material used was about 600 g.
  • As a fixer for mixtures A to F 50 g of sodium metasilicate and 950 g of sodium chloride were used for each of the dyeings carried out.
  • the thus dyed cotton fabric in the form of about A4-sized sections were subsequently decolorized with different mixtures according to the invention.
  • the bagged mixtures of the present invention were added to the AEG Eco Lavamat Euroline washer just prior to the start of the wash into the drum in an amount of 250 grams, with the exception of Mix 5, which was added in a bag weighing approximately 200 grams ,
  • In addition were still considered fiber white cotton sheets in an amount of about 1800 g.
  • the DIN A4-sized test pieces were added in an amount of about 200 g, corresponding to about 18 pieces. The fibers were added only to obtain realistic loading conditions and thus practical test conditions.
  • the surfactant has CAS No .: 69011-36-5 and was obtained from Sasol, Paul-Baumann-Str. 1, 45764 Marl.
  • All mixtures 1 to 7 are characterized by a particularly good Entfärbe impression in the "immediate addition” directly at the beginning of the Entfärbevorgangs in the washing machine. Furthermore, they are characterized by the fact that the formation of blue speckles avoided is even as good as complete in the mixtures 3, 5 and 7.
  • the pH of all mixtures 1 to 7 after decolorization ranged from 5 to 6, whereas the pH at the beginning of the decolorizing liquor was about 7.5 to 8, with the exception of mixtures 1 and 2, in which pH at the beginning of the decolorizing process in the liquor was about 6-6.5. Due to the slightly acidic liquor after decolorization, both the decolorization line and the synergistic effect with the addition of blue spot suppressants can surprisingly be further increased.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
EP08010663A 2007-06-29 2008-06-12 Mélange destiné à la décoloration et/ou au délavage du linge Not-in-force EP2009175B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007030424A DE102007030424A1 (de) 2007-06-29 2007-06-29 Mischung zum Entfärben und/oder Entgrauen von Wäschestücken

Publications (3)

Publication Number Publication Date
EP2009175A2 true EP2009175A2 (fr) 2008-12-31
EP2009175A3 EP2009175A3 (fr) 2010-08-11
EP2009175B1 EP2009175B1 (fr) 2012-05-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08010663A Not-in-force EP2009175B1 (fr) 2007-06-29 2008-06-12 Mélange destiné à la décoloration et/ou au délavage du linge

Country Status (3)

Country Link
EP (1) EP2009175B1 (fr)
AT (1) ATE556172T1 (fr)
DE (1) DE102007030424A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122575A (zh) * 2012-12-15 2013-05-29 天津市宇通工艺品有限公司 一种地毯编织用山羊毛加工工艺
US12281284B2 (en) 2019-12-20 2025-04-22 The Procter & Gamble Company Particulate fabric care composition
US12404479B2 (en) 2022-07-11 2025-09-02 The Procter & Gamble Company Laundry detergent composition containing graft copolymer and benefit agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3747979A1 (fr) 2019-06-05 2020-12-09 Glatfelter Gernsbach GmbH Tissu non tissé capturant les colorants et son procédé de production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831098C2 (fr) 1988-09-13 1992-08-27 Ludwig 3560 Biedenkopf De Plack
EP0615018A1 (fr) 1993-03-08 1994-09-14 DEUTSCHE BABY-FARBEN GmbH Décolorant pour matière textile
DE19503480A1 (de) 1995-02-03 1996-08-08 Brauns Heitmann Gmbh & Co Kg Verfahren zum Entfärben von textilen Materialien und Entfärber zur Durchführung des Verfahrens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426055C3 (de) * 1974-05-30 1982-05-27 Basf Ag, 6700 Ludwigshafen Reduktives Bleichmittel
DE19610745A1 (de) * 1996-03-20 1997-09-25 Basf Ag Mischungen aus reduzierend wirkenden Schwefelverbindungen und organischen Korrosionsinhibitoren und ihre Verwendung als Korrosionshemmende Bleich- oder Reduktionsmittel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831098C2 (fr) 1988-09-13 1992-08-27 Ludwig 3560 Biedenkopf De Plack
EP0615018A1 (fr) 1993-03-08 1994-09-14 DEUTSCHE BABY-FARBEN GmbH Décolorant pour matière textile
DE19503480A1 (de) 1995-02-03 1996-08-08 Brauns Heitmann Gmbh & Co Kg Verfahren zum Entfärben von textilen Materialien und Entfärber zur Durchführung des Verfahrens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122575A (zh) * 2012-12-15 2013-05-29 天津市宇通工艺品有限公司 一种地毯编织用山羊毛加工工艺
US12281284B2 (en) 2019-12-20 2025-04-22 The Procter & Gamble Company Particulate fabric care composition
US12404479B2 (en) 2022-07-11 2025-09-02 The Procter & Gamble Company Laundry detergent composition containing graft copolymer and benefit agent

Also Published As

Publication number Publication date
EP2009175B1 (fr) 2012-05-02
EP2009175A3 (fr) 2010-08-11
ATE556172T1 (de) 2012-05-15
DE102007030424A1 (de) 2009-03-05

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