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
  • C11D17/041—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
  • 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
  • C11D17/046—Insoluble free body dispenser
• • 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

Definitions

• the present invention relates to a container.
• Inorganic peroxygen compounds especially hydrogen peroxide and solid peroxygen compounds which dissolve in water to release hydrogen peroxide, such as sodium perborate and sodium carbonate perhydrate, have long been used as oxidizing agents for purposes of disinfection and bleaching.
• the oxidizing action of these substances in dilute solutions is heavily dependent on the temperature; for instance, with H 2 O 2 or perborate in alkaline bleaching liquors, sufficiently rapid bleaching of soiled textiles is obtained only at temperatures above about 8O 0 C.
• the oxidizing action of the inorganic peroxygen compounds can be enhanced by adding what are called bleach activators, for which numerous proposals have been disclosed in the literature, principally from the classes of the N-acyl or 0-acyl compounds, examples being polyacylated alkylenediamines, especially tetraacetylethylenediamine, acylated glycolurils, especially tetraacetylglycoluril, N-acylated hydantoins, hydrazides, triazoles, hydrotriazines, urazoles, diketopiperazines, sulfurylamides and cyanurates, and also carboxylic anhydrides, especially phthalic anhydride, carboxylic esters, especially sodium nonanoyloxybenzenesulfonate, sodium isononanoyloxybenzenesulfonate and acylated sugar derivatives, such as pentaacetylglucose .
• bleach activators for which numerous proposals have been disclosed in
• transition metal salts and transition metal complexes have been described, for example in European patent applications EP 392 592, EP 443 651, EP 458 397, EP 544 490, EP 549 271 and WO 01/48138, referred to as bleaching catalysts.
• a container comprising a detergent formulation, the container including a primary enclosing wall which is permeable to water and a secondary enclosing wall which comprises a bleaching catalyst admixture and a support material.
• the container of the present invention has a number of advantageous properties.
• the principle advantageous property is that the bleach catalyst, particularly the transition metal thereof when present (when used in a washing / bleaching operation) is not substantive upon an item being washed or bleached. Thus detrimental damage to the item is drastically reduced.
• Another advantage of the present invention is the catalysis of the oxidizing action and bleaching action of inorganic peroxygen compound at low temperatures. Effective catalysis is observed below 80 0 C and in particular from about 12 0 C to 40 0 C.
• Another advantage of the present invention (when used in a washing / bleaching operation) is to allow for reduction of peroxygen amount and / or bleach activator
• the bleach catalyst comprises a transition metal compound based upon one or more of manganese, copper, iron, silver, platinum, cobalt, nickel, titanium, zirconium, tungsten, molybdenum, ruthenium, cerium, lanthanum or vanadium. Most preferably the bleach catalyst comprises a transition metal compound based upon manganese.
• the manganese bleach catalyst may be selected from wide range of manganese compounds.
• Suitable inorganic compounds (often salts) of manganese include hydrated / anhydrous halide (e.g. chloride / bromide), sulphate, sulphide, carbonate, nitrate, oxide.
• suitable compounds (often salts) of manganese e.g.
• Mn (II) include hydrated / anhydrous acetate, lactate, acetyl acetonate, cyclohexanebutyrate, phthalocyanine, bis (ethylcyclopentadienyl) , bis (pentamethylcyclopentadienyl) .
• the bleach catalyst comprises manganese (II) acetate tetrahydrate and/or manganese (II) sulphate monohydrate.
• the bleach catalyst may comprise:-
• the bleach catalyst may comprise :-
• the bleach catalyst may comprise:-
• the bleach catalyst comprises from 0.001% to 10.00%, preferably from 0.01% to 5.00% more preferably from 0.15% to 2.5% of the second enclosing wall, with the remainder of the composition comprising the support matrix.
• a mixture of two or more bleach catalysts listed above can be used.
• the secondary wall is preferably in the form of a film.
• the preferred film thickness is in the range of from 0.10mm to 1.0mm, more preferably from 0.20 to 0.40mm.
• the particle size of the catalyst used in the production of the secondary wall is preferably between 50 micron and 125 micron.
• the support matrix of the secondary wall generally comprises a polymeric material.
• Suitable polymeric materials may be selected from the group of polyurethanes; polyolefins / hydrocarbons, e.g. polypropylene (PP), poly propylene containing maleic anhydride, poly propylene mixed with poly ethylene, polyethylene (PE), PE mixed with ethylene vinyl acetate
• PE/VA poly ethylene copolymer with ethylene ethyl acrylate
• PE/EEA polystyrene, polybutadiene
• polyamides polyvinyl chloride
• polyesters e.g. poly methyl methacrylate, poly vinyl acetate, ethylene vinyl acetate
• phenolic resins copolymers, e.g. polymethylmethacrylate with n-butylacrylate and styrene
• natural / modified natural polymers e.g.
• cellulose cellulose, rubber, latex, styrene-butadiene rubber, butyl rubber, chlorinated / hydrochlorinated rubber, nitrile rubber, vulcanized rubber, siliconised rubber; polycarbonates; silicone resins; fluorinated resins, e.g. PTFE.
• a mixture of two or more plastic materials listed above can also be used for the matrix.
• the film may be made in any suitable method. Preferred methods include casting and extrusion. Further treatment such as a roller hot press bending machine may be used.
• Preferably casting involves dissolution of the support in a suitable solvent, followed by suspension / dispersion of the solid catalyst in fine powder into the solvent and support mixture. This is preferably followed by deposition of the dispersion onto a surface
• Suitable solvents include: chlorinated organic solvents (e.g. chloroform), ketones
• DMSO dimethyl methoxysulfoxide
• alcohols aliphatic or aromatic hydrocarbons
• glycol ethers or organic acids e.g. acetic acid or formic acid
• THF tetra hydro furan
• extrusion and co-extrusion involves passing a composition comprising the support and the catalyst through an extrusion machine or a press machine.
• the extrusion is preferably performed at an elevated temperature which may be affected by heating or by the pressure applied by the extruder.
• extrusion conditions depend to a degree upon the exact nature of the composition being extruded and by the type of machine used.
• a suitable extrusion operating temperature is, for example, 90-260 0 C.
• a suitable extrusion operating screw velocity is, for example, 25—250 rpm (rotation per minute) , preferably 50-125 rpm.
• a suitable extrusion operating pressure is, for example, 30-250 bar.
• a suitable torque force for an extrusion process is in the range 10-100 Ampere.
• the extrudate is preferably in the form of film, pellets or strand or noodles.
• the primary wall is water permeable.
• water permeable we mean that the material allows water to pass through, under the conditions in which the product is used.
• the material has an air permeability of at least 1000 l/m 2 /s at 100 Pa according to DIN EN ISO 9237.
• the web must not be so permeable that it is not able to hold a granular dye transfer inhibition composition (e.g. greater than 150 microns) .
• Preferred materials includes polymeric fibres such as polyolefins
• polyethylene and polypropylene poly (haloolefins) , poly (vinylalcohol) , polyesters such as ethylene vinyl acetate, polyamides, polyacrylics, protein fibres and cellulosic fibres (for example cotton, viscose and rayon) .
• the primary wall comprises a non-woven material.
• Processes for manufacturing non-woven fabrics can be grouped into four general categories leading to four main types of non-woven products, textile-related, paper-related, extrusion-polymer processing related and hybrid combinations
• Textiles include garneting, carding, and aerodynamic forming of fibres into selectively oriented webs. Fabrics produced by these systems are referred to as dry laid nonwovens, and they carry terms such as garneted, carded, and air laid fabrics. Textile-based nonwoven fabrics, or fibre- network structures, are manufactured with machinery designed to manipulate textile fibres in the dry state. Also included in this category are structures formed with filament bundles or tow, and fabrics composed of staple fibres and stitching threads.
• textile-technology based processes provide maximum product versatility, since most textile fibres and bonding systems can be utilised.
• Paper-based technologies include dry laid pulp and wet laid (modified paper) systems designed to accommodate short synthetic fibres, as well as wood pulp fibres. Fabrics produced by these systems are referred to as dry laid pulp and wet laid nonwovens . Paper-based nonwoven fabrics are manufactured with machinery designed to manipulate short fibres suspended in fluid.
• Extrusions include spun bond, melt blown, and porous film systems. Fabrics produced by these systems are referred to individually as spun bonded, melt blown, and textured or apertured film nonwovens, or generically as polymer-laid nonwovens. Extrusion-based nonwovens are manufactured with machinery associated with polymer extrusion. In polymer-laid systems, fibre structures simultaneously are formed and manipulated.
• Hybrids include fabric/sheet combining systems, combination systems, and composite systems.
• Combining systems employs lamination technology or at least one basic nonwoven web formation or consolidation technology to join two or more fabric substrates.
• Combination systems utilize at least one basic nonwoven web formation element to enhance at least one fabric substrate.
• Composite systems integrate two or more basic nonwoven web formation technologies to produce web structures. Hybrid processes combine technology advantages for specific applications.
• the primary wall of the container may itself act as a further means for modifying the water, for example by having the capability of capturing undesired species in the water and/or releasing beneficial species.
• the wall material could be of a textile material with ion-capturing and/or ion-releasing properties, for example as described above, such a product may be desired by following the teaching of WO 02/18533 that describes suitable materials.
• the wall may be modified to provide a dye / dirt catching function. Such a function may be provided by physically / chemically incorporating a dye / dirt catching agent into / onto the fabric of the wall.
• a preferred example of such a material is a quaternary ammonium based compound.
• the product may comprise an indication means which serves to show the extent of performance of the dye transfer inhibition function.
• an indication means is a colour change within the product. This colour change may occur on the sachet and / or on the body contained within the sachet.
• a preferred way of achieving the colour change is to use a colour catching compound which is attached to the sachet and / or to the body within the sachet.
• Container forming can be done in an horizontal or in a vertical plane from two or more rolls of material that are joined together to form the walls of the sachet.
• Machine assemblies for sachet forming, filling and sealing can be sourced from, VAI, IMA, Fuso for vertical machines; Volpack, Iman Pack for horizontal sachet machines; Rossi, Optima, Cloud for horizontal pod machines.
• the open container is preferably configured as a pocket or pouch, preferably sealed or otherwise closed on three edges, and which can be filled through an edge, for example the fourth, open, side.
• Filling of the open container can be done with a variety of volumetric devices , such as a dosing screw or as a measuring cup.
• volumetric devices such as a dosing screw or as a measuring cup.
• Typical dosing accuracy required at constant product density is +/-1% wt preferably, +/-5% wt minimum.
• Filling devices are supplied by the companies mentioned above as part of the machine package .
• Feedback control mechanisms acting on the speed of the dosing screw or on the volume of the measuring cup can be installed to maintain high dosing accuracy when the product density changes .
• Seal strength is important, as the container must not open during the wash cycle or other type of cleaning or water-softening operation, otherwise any water insoluble ingredients might soil the items washed.
• the strength of any seal is very much dependent on the materials used and the conditions of the sealing process, for example the following conditions are used to generate good quality seals
• heat sealing preferably using flat sealing bars, 5mm by 100mm, Teflon coated stainless steel, typically 1 sec at 15O 0 C +/-1 0 C at 20kg/cm 2 actual sealing pressure, as achieved on a bench scale Kopp heat sealer and on the heat sealing devices of most of the machine suppliers mentioned before; • ultrasound sealing, preferably using grooved sealing bars, 5mm by 150mm, pattern with diagonal grooves at 45 degrees to the side of the seal, pitch of 15mm and bar width of 5min with a nominal seal area coverage of 33%, 0.1 to 0.3 s at 2OkHz and 70 microns vibration amplitude, actual sealing pressure between 10 and 60 kg/cm 2 , typical absorbed power 300 to 1200W, typical absorbed energy 30 to 180W, using ultrasound sealing equipment produced by companies like Mecasonic or Branson or Herrmann or Sonic or Dukane or Sonobond.
• glue sealing e.g. applying 10g/m 2 of hot melt glue like Prodas 1400, PP, from Beardow Adams.
• Polyethylene (PE) or polyamides or polyurethanes or UV curable acrylics glues or epoxy resins can be used as well.
• the container is preferably flat, i.e. with one dimension, the thickness of the container, at least 5 times smaller preferably at least 10 times smaller, ideally at least 30 times smaller than the other two, the width and the length of the sachet (which are the same as each other, corresponding to the diameter of the sachet, should it be circular in plan) .
• Preferred thicknesses are in the range of 10 - 20mm, e.g. 10mm, 15mm or 20mm.
• the container covers a surface (i.e. the product of width and length (when the sachet is rectangular) of between 80 to 300 cm 2 , ideally 100 to 200 cm 2 .
• Preferred lengths/widths are in the range of 5 - 30cm, e.g. 6cm, 10cm, 12cm, 15cm, 20cm, 25cm or 30cm.
• the container may comprise a flexible body of at least 10mm in one dimension and 10mm in another direction.
• the body is such that no dimension is greater than 20mm.
• each dimension is between 10 - 20mm, e.g. 12mm, 15mm or 18mm.
• the body may be configured to provide a volume adding function e.g. by being resilient so it expands on removal of compression forces.
• a volume adding member has been shown [when used in an automatic washing operation] to decrease the incidence of lodging of the device within the door seal, posting of the device in the door seal, facilitate the finding of the device after a washing operation, and can favour water flow through the device.
• the body comprises a foam material which may comprise any suitable material such as polypropylene, polyester and / or PE/EVA.
• the body may comprise a number of separate elements each being formed of a different material.
• the detergent composition is a dishwashing, laundry, hard surface cleaning and / or disinfecting composition.
• the composition is for use in the appropriate washing operation in a washing machine or other washing vessel such as a sink, bucket, etc.
• composition may be used in an additive
• additives which are complementary to a detergent product used in a washing operation e.g. additives which are complementary to a detergent product used in a washing operation
• a product which contains a bleach e.g. additives which are complementary to a detergent product used in a washing operation
• the detergent composition may comprise a homogenous product, e.g. a uniform powder / liquid or alternatively the detergent composition may have a plurality of individual phases, e.g. such as a multi-phase tablet.
• the detergent composition typically comprises at least one of surfactant (anionic, non-ionic, cationic or amphoteric) , builder, bleach, bleach activator, bleach stabilizer, bleaching catalyst, enzyme, polymer, co- builder, alkalizing agent, acidifying agent, anti- redeposition agent, silver protectant, colourant, optical brightener, UV stabilizer, fabric softener, fragrance, soil repellent, anticrease substance, antibacterial substance, colour protectant, discolouration inhibitor, vitamin, phyllosilicate, odour-complexing substance, rinse aid, foam inhibitor, foaming agent, preservative, or auxiliary.
• surfactant anionic, non-ionic, cationic or amphoteric
• a container according to the first aspect of the invention in a dishwashing, laundry and / or hard surface cleaning operation and/ or a sanitizer/disinfectant operation.
• the container may be placed with the items to be washed in an automatic washing machine.
• the container may pack into the flow pathway for the rinse or wash water of a ware washing machine such that the water is compelled to flow through it.
• Manganese acetate tetra hydrate from Kemira was milled into a fine powder using the laboratory grinder. After sieving, a granulometry of 50-125 ⁇ m was selected for film production.
• Manganese sulphate monohydrate from Fluka was also sieved, a granulometry of 50-125 ⁇ m was selected for film production.
• PMMA VM 100 was heated in an over for 2 hours at 80 0 C to remove traces of water.
• PP poly propylene was used as supplied, without being dried.
• the three heating zones of the extruder were set up as 5 follows:
• Average screw velocity was 30 rpm.
• the head opening was set up at 0.3mm.
• the bending machine was set up at 60 0 C with a velocity of 2.2 metres per minute. 0 These process parameters were set up at the beginning of the trial and maintained constant throughout production using PMMA. Summary of trials and film produced in the table below:
• Average production capacity was 2 kg / hour.
• a solution containing sodium percarbonate and TAED was compared with a solution containing PCB, TAED and a catalyst in homogeneous phase (manganese acetate OR manganese sulphate) and with a solution containing PCB + TAED + the corresponding catalysts in solid film format
• UV/VIS Abs at 430 nm to monitor the oxidation rate on substrate, via measurement of de-colouration of saffron solution.
• film 4 is effective as oxidation catalysts (vs. no catalyst), with film 8 delivering the highest catalyses efficiency on the bleaching of saffron.
• Example 5 Performance under Washing Conditions .
• Film 8 was used in a washing machine test to assess the catalytic activity on the bleaching of standard soils.
• a test under consumer relevant washing condition was conducted comparing the cleaning performance delivered by a compact laundry detergent alone (Tandil Ultra Plus dose at 68 g/wash, containing a traditional bleach system based on percarbonate and TAED) with the performance delivered by the same detergent plus the addition in wash of the solid catalyst in film format (film 8, dosed at 5 g/wash) .
• EEA was pre-dried in oven at 90 0 C for 2-4 hours.
• PE / EVA was not pre-dried.
• the three heating zone of the extruder were set up as follows :
• Average screw velocity was 30 rpm.
• the head opening was set up at 0.3mm.
• the bending machine was set up at 60 0 C with a velocity of 3.0 metres per minute.
• Average production capacity was 2 kg / hour. The cleaning procedure was applied after each trial/each film production.

Landscapes

• 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)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)
• Catalysts (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=39737502

Family Applications (1)

Country Status (12)

Families Citing this family (5)

Family Cites Families (13)

• 2008
  • 2008-07-23 GB GBGB0813460.3A patent/GB0813460D0/en not_active Ceased
• 2009
  • 2009-07-20 CN CN2009801278242A patent/CN102099457B/zh not_active Expired - Fee Related
  • 2009-07-20 CA CA2730523A patent/CA2730523A1/en not_active Abandoned
  • 2009-07-20 BR BRPI0916454A patent/BRPI0916454A2/pt not_active Application Discontinuation
  • 2009-07-20 ES ES09784746T patent/ES2424791T3/es active Active
  • 2009-07-20 RU RU2011105658/04A patent/RU2511399C2/ru not_active IP Right Cessation
  • 2009-07-20 EP EP09784746.1A patent/EP2318503B1/de not_active Not-in-force
  • 2009-07-20 AU AU2009275368A patent/AU2009275368B2/en not_active Ceased
  • 2009-07-20 WO PCT/GB2009/001793 patent/WO2010010334A1/en active Application Filing
  • 2009-07-20 US US13/054,132 patent/US20110174660A1/en not_active Abandoned
  • 2009-07-20 PL PL09784746T patent/PL2318503T3/pl unknown
• 2011
  • 2011-01-11 ZA ZA2011/00284A patent/ZA201100284B/en unknown

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events