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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/049—Cleaning or scouring pads; Wipes
• • 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
  • C11D1/02—Anionic compounds
  • C11D1/04—Carboxylic acids or 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
  • C11D10/00—Compositions of detergents, not provided for by one single preceding group
  • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
• • 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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
• • 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
  • C11D3/0021—Dye-stain or dye-transfer inhibiting 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
  • C11D3/16—Organic compounds
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/33—Amino carboxylic acids
• • 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
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3723—Polyamines or polyalkyleneimines
• • 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3905—Bleach activators or bleach catalysts
  • C11D3/3907—Organic compounds
  • C11D3/3917—Nitrogen-containing 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3905—Bleach activators or bleach catalysts
  • C11D3/3932—Inorganic compounds or complexes
• • 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3942—Inorganic per-compounds

Definitions

• the present invention relates to a detergence article.
• Water hardness is the quantity of alkaline-earth metal salts, in particular calcium and magnesium bicarbonates and sulphates, present in solution in the water. Water is defined as being medium-hard if it has a limestone content (calcium carbonate) of 150 to 250 mg/l (15-25 °F), whereas it is considered hard if the limestone content is higher than 250 mg/l (from 25 °F).
• medium-hard or hard water deposits a layer of limestone on the internal surfaces of washing-machines which, if not periodically eliminated, can cause blockage of the water discharge, malfunctioning of the washing-machine components etc., with consequent breakage of the household appliance and/or huge water losses.
• an anticalcareous agent is normally added to the detergent, in the same container, which is usually in the form of a powder or tablet or liquid.
• a first approach consists of the use of carriers in the form of sachets or fabric, impregnated, laminated or covered with a layer of detergent and/or additive, not soluble in water.
• the possibilities of formulation for this type of article also depend on requisites of an aesthetic nature, as the carrier obviously cannot be impregnated over certain values as the end-product must not be wet or sticky.
• the article on the other hand should neither be too hard or fragile, to allow its easy use for the user.
• the second type of approach envisages the use of carriers soluble in water.
• a detergence article which combines both the effect linked to the presence of a dye scavenger agent, and possibly an anticalcareous agent or bleaching agent and also a detergent component, is of particular interest: an article which therefore totally eliminates the colour present in the washing water, but which, at the same time, together with washing the clothes, can also obtain a water-softening action and a bleaching action of the clothes.
• An object of the present invention therefore relates to a detergence article comprising a flexible carrier, non-soluble in water, irreversibly impregnated with a dye scavenger component, and containing at least one component in the form of a powder or gel consisting of a detergent component and/or an additive component, wherein the dye scavenger component is a cationic heterocyclic polymer obtained by the polymerization of epichlorohydrin and imidazole and wherein the detergent component consists of sodium dodecylbenzenesulphonate, polyethoxylated alcohol 7moles E0, and vegetable soaps.
• a further object of the present invention relates to the use of a detergence article comprising a flexible carrier, non-soluble in water, irreversibly impregnated with a dye scavenger component and containing at least one component in the form of a powder or gel, consisting of a detergent component and/or an additive component, wherein the dye scavenger component is a cationic heterocyclic polymer obtained by the polymerization of epichlorohydrin and imidazole and wherein the detergent component consists of sodium dodecylbenzenesulfonate, polyethoxylated alcohol 7moles EO, and vegetable soaps, for washing by hand or in washing-machines.
• the detergence article according to the present invention preferably comprises a flexible carrier, non-soluble in water, also reversibly impregnated with an anticalcareous component.
• the anticalcareous component, or water-softening additive or sequestering additive of calcium and magnesium ions is preferably an EDTA salt (ethylenediaminotetracetic acid).
• the additive or additive component is preferably a bleaching additive selected from TAED-percarbonate and PAP.
• TAED-percarbonate is preferred.
• the carrier exerts the function of carrying the dye scavenger, anticalcareous, detergent component and/or the additive.
• the component when it is in the form of a powder or gel, it comprises both the detergent component and the additive component, the detergent component is present in a quantity ranging from 1 to 50% by weight, preferably from 5 to 40%, even more preferably from 10 to 30%, with respect to the total weight of the component in the form of a powder or gel.
• the detergent component of the article according to the present invention can also comprise enzymes as further detergent agents.
• the enzymes present in the detergent component according to the present invention are selected from amylase, protease, cellulase and mixtures thereof. They are present in the detergent composition in a quantity varying from 0.1 to 4% by weight, preferably from 0.5 to 2% by weight with respect to the total weight of the component in powder- or gel-form.
• the detergent component of the article according to the present invention can also comprise phosphonates, polycarboxylates, cmc, zeolites, optical bleaches, soaps, antifoam agents, perfumes, etc.
• the TAED-percarbonate is preferably used together with a catalyst which has the following chemical formula: a manganese-based oxygen-releasing catalyst (commercialized under the trade-name of Tinocat TRS KB2).
• the bleaching agent i.e. the additive component is present in the article according to the present invention in a quantity ranging from 1 to 60% by weight, more preferably from 5 to 50% by weight, even more preferably from 8 to 40% by weight, with respect to the total weight of the component in the form of a powder or gel.
• the detergent article according to the present invention has a quantity of surface-active agent which is higher than the bleaching agent
• the article according to the present invention is a detergent product to be used directly as sole detergent agent.
• the article according to the present invention is a bleaching product to be used as additive combined with a further detergent product.
• the dye scavenger additive which removes colour is a substance which has a very high affinity for dyes.
• the dye released in the washing water of "coloured” clothes must in fact have a greater affinity for the dye scavenger additive of the present invention than for "white” fabrics.
• the cationic heterocyclic polymer having the formula belongs to the group of cationic heterocyclic polymers produced by the synthesis of epichlorohydrin and imidazole and is identified with the number CAS 68797-57-9.
• the colour-removing additive can be advantageously prepared in solution with a base, preferably a strong base such as NaOH, and water.
• a base preferably a strong base such as NaOH, and water.
• This solution is particularly suitable for the application of the additive with techniques used in the dyeing industry.
• the dye scavenger component is irreversibly impregnated in the article according to the present invention in a quantity ranging from 1 to 6% by weight, more preferably from 2 to 5% by weight, even more preferably from 3 to 4% by weight, with respect to the total weight of the carrier.
• the anticalcareous additive, or water-softening additive or sequestering additive of calcium and magnesium ions is an EDTA salt (ethylenediaminotetracetic acid)
• the sequestering agent for example, is used in a quantity specifically for leaving a weight on the carrier ranging from 5 to 100 g/m 2 referring to the dry carrier, preferably from 7 to 50 g/m 2 , more preferably about 10 g/m 2 .
• the compound also comprises a polyurethane, acrylic or natural thickening agent.
• the thickening agent can also be used in quantities ranging from 5% to 100% with respect to the quantity of sequestering agent, preferably from 20% to 80%, more preferably about 50%.
• the specific quantity and type of thickening agent are obviously selected by experts in the field according to the type of application, the pre-established regulations of the machine and preselected substrate.
• the preferred natural thickening agent is Guaro IDALCA flour of Lamberti SpA.
• a viscous compound is obtained, which is preferably stabilized with a dispersant which is acrylic-based for example.
• the quantity of use of this substance can range from 5% to 50% with respect to the quantity of sequestering product, preferably from 7% to 20%, more preferably about 10%.
• the softening compound can comprise a binder.
• the binder is any substance capable of cohesioning the substrate of non-woven fabric.
• the binder strengthens the substrate to prevent the washing cycles of a washing-machine from ruining the structure of the non-woven fabric.
• modern washing-machines have extremely forced washing cycles, and especially centrifuge cycles. These cause a rapid deterioration of fabrics in general and in particular a spunlaced substrate, a versatile product due to its softness, feel, colour-binding capacity.
• the spunlaced substrate can in fact fray, releasing fibres in the washing water which become attached to the clothes being washed, with imaginable consequences.
• the binder can be a resin such as, for example, an acrylic, vinyl, polyurethane or natural resin.
• the binder can also be a natural or synthetic latex.
• the quantity of use of the cohesion agent can vary from 5% to 100% of the sequestering product, preferably from 7 to 50%, more preferably about 10%.
• the preferred article according to the present invention comprises a flexible carrier, non-soluble in water, in the form of a pocket, sachet or sandwich, irreversibly impregnated with a dye scavenger component consisting of a cationic heterocyclic component obtained by polymerization of epichlorohydrin and imidazole, and optionally reversibly impregnated with an anticalcareous component or sequestering agent of calcium and magnesium ions which is an EDTA salt, and containing a component in the form of a powder or gel, consisting of a detergent component consisting of sodium dodecylbenzenesulphonate, polyethoxylated alcohol 7moles E0, and vegetable soaps, and/or a bleaching additive component consisting of TAED-percarbonate and a catalyst which has the following chemical formula: a manganese-based oxygen-releasing catalyst.
• a dye scavenger component consisting of a cationic heterocyclic component obtained by polymerization of epichloro
• the carrier of the article according to the present invention is flexible, non-soluble in water, solid or substantially solid.
• the carrier can be with a single layer or multilayered, it can have any dimension and preferably has the form of a sachet or pocket.
• It can have a dense or open structure and examples of material suitable for the carrier of the article according to the present invention are porous sheets, sponges, paper, fabric and/or non-woven fabric. Included in the scope of the present invention are substrates characterized by an absorption capacity range, thickness, density of the fibres, which are such as to guarantee the wet carrier a sufficient resistance for maintaining its structural integrity until the complete washing cycle and/or cycle of use has been completed.
• the carrier is preferably a woven fabric or non-woven fabric.
• the woven fabric or non-woven fabric are natural and/or synthetic.
• the carrier can be any carrier of the cellulose type such as paper, a natural material such as cotton or a synthetic material.
• the carrier is preferably a natural and/or synthetic non-woven fabric, more preferably a synthetic non-woven fabric.
• Non-woven fabrics which can be conveniently used are spunlaced, spunbonded, thermobonded, airlaided non-woven fabrics, where said terms spunlaced, spunbonded, thermobonded, airlaided indicate both non-woven fabrics and the techniques used for obtaining them, well-known in the art.
• the fibres preferably used for obtaining these non-woven fabrics are polyester (PE) fibres, polypropylene (PP) fibres, polylactic (PLA) fibres, polyethylenesulfone (PES) fibres, acrylic polymers, regenerated cellulose, polyamide fibres, cotton, viscose or mixtures thereof.
• the carrier can also consist of 100% regenerated cellulose, for example: lyocell ® (i.e. regenerated cellulose fibre, obtained with a dissolution and spinning process in an organic solvent) or tencell ® .
• the carrier preferably has a weight ranging from 150 g/m 2 to 50 g/m 2 , more preferably from 100 g/m 2 to 60 g/m 2 .
• the fibres of the carrier preferably have dimensions ranging from 0.5 dtex to 5 dtex, preferably from 1 dtex to 2 dtex.
• the carrier of the article according to the present invention can be dense or it can have an open cell structure and therefore have a high volume of empty spaces which represent the space of the carrier which is not occupied.
• Substrates consisting of multilayer paper structures comprise layers having protuberances, whose ends are melted and welded.
• This paper structure has empty spaces between the protuberant portions of the folds, as also between the same fibres of the layers of paper.
• a non-woven fabric also has these empty spaces between the fibres.
• the empty spaces in the carrier can be varied by modifying the density of the fibres of the carrier. In general, substrates with a high quantity of empty space have a low fibre density, whereas substrates with a low quantity of empty space have a high fibre density.
• the carrier is selected so as to have a sufficient charge capacity with the components of the detergent article according to the present invention.
• the correct charge can be determined in relation to the dimensions of the final carrier sheet and quantity of components to be released. There are no particular limitations in the dimensions. Non-woven fabrics with high charge capacities generally also have higher costs and consequently this aspect must also be taken into account in selecting the most suitable carrier.
• the dye scavenger additive and/or anticalcareous additive are applied on the substrate of non-woven fabric, irreversibly or reversibly respectively, by means of known application methods such as, for example, impregnation, spreading or printing, as described in detail in patent applications MI2006A000096 and MI2006A000999, whose contents should be considered an integrating part of the present patent application.
• the detergent component in powder- or gel-form and/or the additive, preferably a bleaching agent, in powder- or gel-form, are entrapped between two sandwich-coupled layers of carrier, or the carrier in the form of a pocket or sachet.
• the preferred detergence article according to the present invention comprises a carrier of non-woven fabric in spunlaced regenerated cellulose and at least one thermoweldable polymer, to which the cationic heterocyclic polymer, which has a dye scavenging function is irreversibly fixed and possibly the sequestering agent, i.e. an EDTA salt, which has a water-softening function, is reversibly fixed, said carrier being in the form of a pocket and containing in its interior the detergent component and/or the bleaching additive component in the form of a powder or gel.
• the present invention also relates to a process for the preparation of a detergence article according to the present invention.
• a further object of the present invention therefore relates to a process for the preparation of a detergence article comprising a flexible carrier, non-soluble in water, irreversibly impregnated with a dye scavenger component, and containing at least one detergent component and/or an additive in the form of a powder or gel.
• Said process comprises the following passages:
• Steps b) and d) can be inverted.
• the detergence article according to the present invention is normally inserted in conventional or professional washing-machines before the beginning of the washing cycle.
• the preparation process of the detergence article according to the present invention is extremely rapid as it can be effected in continuous and has a limited number of steps. This leads to a considerable saving of time and energy.
• the final material is in fact obtained in the order of minutes as the "dye scavenger" additive almost instantaneously irreversibly binds itself to the substrate and it is not necessary to leave it to rest for hours (to ensure that the additive is absorbed on the substrate) as in the processes of the known art. All this is made possible by the use of the "dye scavenger” additives of the present invention which have an extremely high affinity for the substrate and are practically instantaneously absorbed in an effective quantity. Furthermore, the subsequent printing and drying steps are also extremely rapid.
• the thickening agent or detergent dissolves in water possibly also releasing the bleaching agent which, dissolved in water, exerts its function of bleaching and whitening, whereas the detergent exerts its detergent function.
• the number of sheets of the detergence article according to the present invention which are used for each washing cycle depends on the weight of the laundry and its dirtiness.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)
• Manipulator (AREA)
• Steering Controls (AREA)
• Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
• Cosmetics (AREA)
• Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
• Medicines Containing Plant Substances (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (2)

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Cited By (16)

Families Citing this family (3)

Citations (4)

• 2006
  • 2006-08-08 IT IT001598A patent/ITMI20061598A1/it unknown
• 2007
  • 2007-08-07 AT AT07113949T patent/ATE553174T1/de active
  • 2007-08-07 ES ES07113949T patent/ES2385604T3/es active Active
  • 2007-08-07 EP EP07113949A patent/EP1889900B1/de active Active
  • 2007-08-07 PL PL07113949T patent/PL1889900T3/pl unknown

Patent Citations (4)

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