WO2006010482A1 - Composition de detergent particulaire et emballage associe - Google Patents

Composition de detergent particulaire et emballage associe Download PDF

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Publication number
WO2006010482A1
WO2006010482A1 PCT/EP2005/007622 EP2005007622W WO2006010482A1 WO 2006010482 A1 WO2006010482 A1 WO 2006010482A1 EP 2005007622 W EP2005007622 W EP 2005007622W WO 2006010482 A1 WO2006010482 A1 WO 2006010482A1
Authority
WO
WIPO (PCT)
Prior art keywords
sachet
particulate
powder
composition
compressibility
Prior art date
Application number
PCT/EP2005/007622
Other languages
English (en)
Inventor
Jane Elizabeth Ormond
Original Assignee
Unilever Plc
Unilever Nv
Hindustan Lever Limited
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 Unilever Plc, Unilever Nv, Hindustan Lever Limited filed Critical Unilever Plc
Priority to EP05767057A priority Critical patent/EP1781769A1/fr
Priority to BRPI0513874-4A priority patent/BRPI0513874A/pt
Publication of WO2006010482A1 publication Critical patent/WO2006010482A1/fr

Links

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
    • 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
    • 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
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets

Definitions

  • a particulate detergent composition and packaging therefore.
  • the present invention relates to a particulate fabric treatment composition having a dynamic flow rate of at least 90 ml/s.
  • the present invention provides a particulate fabric treatment composition having a dynamic flow rate of at least 90 ml/s, characterised in that the particulate detergent composition is contained in a water insoluble elongate tubular sachet.
  • a unit dose of a fabric treatment composition in particulate form is advantageous because it offers high washing efficiency as compared with, for example, other unit dose formats such as compacted tablets.
  • particle as used herein is intended to include powder, agglomerated or descrete particles, granules, or any other solid particles.
  • an elongate tubular body containing a particulate fabric treatment composition having a dynamic flow rate of at least 90 ml/s is advantageous in that it reduces the likelihood that the flow of the particulate composition from tubular container becomes blocked.
  • the dynamic flow rate should be at least 90 ml/s and the may be at least 100 ml/s. More preferably the dynamic flow rate is at least 110 ml/s.
  • the particulate fabric treatment composition has a compressibility of less than 25%; further preferably less than 20% and even further preferably less than 17%.
  • the particulate composition has a compressibility of less than 15%. Reducing the compressibility of the composition is advantageous as this further improves flow properties of the composition within the tubular sachet during dispensing thereby reducing the likelihood of blockages.
  • Compressibility as used herein is measured by compressing a known volume of particulate composition by the application of a standard weight, at defined conditions of temperature and humidity after which the volume reduction is noted. The method used is described below.
  • the length of the sachet should be greater than the width to provide the elongate tubular shape. Such a shape is advantageous in terms of e.g. ease of handling.
  • the ratio of the (longitudinal) length of the sachet (before filling with the particulate composition) to the width of the sachet (again, before filling) is preferably from 3:1 to 6:1. Most preferably, the ratio is 4:1 to 5.1.
  • the length of the sachet (measured before filling and along the longitudinal axis) may be 100mm -300mm, preferably 150 -
  • the width of the sachet (measured before filling and perpendicular to the longitudinal axis) may be 20mm - 50mm, preferably 30-45mm.
  • the length is 185mm and the width is 45mm, so that the ratio is approximately 4:1 and the dynamic flow ratio of the composition is at least 100 ml/s.
  • the sachet is preferably a three-seemed sachet with a lengthwise seam (5) formed as a sealed flat seam.
  • the sachet is preferably closed at each end by sealed transverse seam and may have a lateral incision (4) for opening.
  • the ends may have incisions e.g. by means of ⁇ zig-zagged' edges to allow opening.
  • the lengthwise seam may be a fin or ⁇ lap' seal.
  • a lap seam is formed where two layers of film overlap, with the outermost face of the inner layer in contact with the innermost face of the outer layer. The two layers are then bonded together either by use of an adhesive or by the formation of a weld.
  • a weld requires the surface layers of the film to be made of a thermoplastic material (i.e. one which will melt when a high temperature is applied) .
  • a welded bond is formed by melting the surface layers, allowing the molten layers to merge together, then allowing resolidification to take place.
  • the fin seam is formed by contacting the inner faces of two layers of film together and then bonding the two layers together.
  • a weld is frequently used to bond the inner faces of the film together. This requires the inner layers of the film to be made from a thermoplastic material.
  • the fin seal Compared to the lap seal, the fin seal requires a greater area of flexible film for the same volume of package.
  • topological constrains on the formation of a lap seal mean that it can only be conveniently formed at an early stage in the manufacture of a package, before product is in the partially formed package, as it requires the application of a sealing bar to the inner and outer surfaces of the package.
  • the fin seal can be used when there is product in the package, and to form the final seam closing the package, as sealing bars have only to be applied to the outer surfaces of the package.
  • it may be formed by sealing a lengthwise seam sealing strip onto the reciprocally abutting lengthwise edges (taping seam) .
  • the sachet is preferably formed of a water-insoluble thermoformable plastics material such as polystyrene, high or low-density polyethylene, polypropylene.
  • An insoluble sachet is advantageous if the user has wet hands (eg.which may happen as a result of pre-treatment or in the case of hand washing) . Water soluble sachets and tablets may, in such circumstances begin to prematurely dissolve whereas a non-soluble sachet would not.
  • All of the above polymers include the aforementioned polymer classes whether as single polymers or as copolymers formed of monomer units or as copolymers formed of monomer units derived from the specified class or as copolymers wherein those monomer units are copolymerised with one or more comonomer units.
  • Blends i.e. not copolymers of two or more polymers recited herein, may also be used.
  • a plurality of sachets according to the present invention may be formed together end to end, e.g. on a vertical form fill and seal machine. Batches of sachets may be provided held together in ⁇ strings' a line of weakness in the material separating each sachet from an adjacent sachet. Then, in use, the consumer may tear-off an individual container leaving the remainder in the ⁇ string' .
  • Fill volumes of contents of the sachet are from 3Og to 10Og, for example 4Og to 7Og. In one example the fill volume is 5Og.
  • Exemplary powder formulations are below. Parts and percentages are by weight unless otherwise stated.
  • EXAMPLES 1 and 2 are particularly suitable for handwashing formulations.
  • the following formulation was prepared by drum drying alpha- olefin sulphonate paste (70 wt%), alkyl ether sulphate paste (70 wt%) and sodium alkaline silicate solution to form granules.
  • Sodium carboxymethyl cellulose, fluorescer and enzymes were subseguently admixed.
  • Alpha-olefin sulphonate 38 wt% solution
  • alkyl ether sulphate (28.5 wt% solution)
  • fluorescer and sodium alkaline silicate (42 wt% solution)
  • the resulting product was granulated in a L ⁇ dige Ploughshare mixer with additional AOS (38 wt% active) , silica, sodium carboxymethyl cellulose, enzymes (Enzyme Ace protease/lipase granules and cellulase) and perfume.
  • Raw materials and their suppliers were as in Example 1. The resulting formulation and some physical properties are shown below.
  • the tgo dissolution time is the time required for 90 wt ! dissolution (as measured by a conductivity method) .
  • F1-F4 were typical detergent base powders containing substantial levels of builder, anionic surfactant and nonionic surfactant.
  • B1-B3 were builder granules.
  • Nonionic surfactants ex ICI.
  • Granular components Al, A2 and A3 containing high levels of anionic surfactant were prepared by non-spray-drying processes as follows.
  • NaPAS sodium primary alcohol sulphate particles
  • the temperature of the material entering the drying zone was set at 60 0 C and a small negative pressure was applied to the drying zone.
  • a throughput in the flash drier of 120 kg/hr of paste was used.
  • the temperature of the wall of the drying zone was initially 14O 0 C.
  • the heat transfer area of the drying and cooling zones was 10 m 2 and 5m 2 respectively.
  • the temperature of the wall of the drying zone was raised in steps to 170 0 C.
  • the throughput was increased in steps to 430 kg/hr at 170°C.
  • the process conditions were stabilised for 15 minutes.
  • the particles then passed to a cooling zone operated at a temperature of 3O 0 C.
  • NaLAS sodium linear alkyl benzene sulphonate particles
  • zeolite MAP was dosed as a layering agent and optionally sodium sulphate was dosed as well.
  • a 1.2 m 2 VRV flash-drier machine was used having three equal jacket sections. Dosing ports for liquids and powders were situated just prior to the first hot section, with mid-jacket_ dosing ports available in the final two sections. Zeolite was added via this port in the final section. An electrically-powered oil heater provided the heating to the first two jacket sections. Ambient process water at 15 0 C was used for cooling the jacket in the final section.
  • Make-up air flow through the reactor was controlled between 10 and 50 mVkg hr by opening a bypass on the exhaust vapour extraction fan. All experiments were carried out with the motor at full-speed giving a tip speed of about 30 m/s. Screw-feeders were calibrated to dose sodium carbonate and zeolite MAP for layering. The sodium carbonate and liquids were added just prior to the first hot section and zeolite layering was added into the third section which was cold. The minimum level of zeolite was added to give free-flowing granules leaving the drier. A jacket temperature of 145 0 C was used in the first two sections, with an estimated throughput of components 60 to 100 kg/hr. A degree of neutralisation of alkyl benzene sulphonate of greater than 95 was achieved. The bulk density, surfactant level and compressibility of the particles was then measured.
  • Alpha-olefin sulphonate (AOS) granules A3 were produced in a similar manner by drying an AOS paste containing 70% neutralised AOS and 30% water in a dryer/granulator supplied by VRV SpA, Italy.
  • the temperature of the material fed into the drying zone was set at 60 0 C and a small negative pressure was applied to the drying zone.
  • the temperature of the wall of the drying zone was initially 140 0 C.
  • the heat transfer areas of the drying and cooling zones were 0.8 m 2 and 0.4 m 2 respectively.
  • the temperature of the wall of the drying zone was raised in steps to 155°C.
  • the particles then passed to a cooling zone operated at a temperature of 3O 0 C and were collected as free flowing granules.
  • the anionic surfactant granules had the following compositions:
  • a granular component Nl containing nonionic surfactant was manufactured by the following process.
  • a mixture of sodium sulphate, sodium carbonate and Sokalan (Trade Mark) CP5 (acrylic/maleic copolymer ex BASF, Na salt) was spray-dried to form a porous carrier powder of the formulation given below.
  • the slurry was made by successively dosing Sokalan CP5, sodium sulphate and sodium carbonate in water.
  • the moisture content of the slurry was 55% at a temperature 9O 0 C.
  • the slurry was sprayed in a counter-current spray-drying tower using an inlet temperature of 350-400°C.
  • Nonionic surfactant was sprayed into this spray-dried carrier in a rotating pan-granulator, resulting in the following final composition Nl.
  • a second nonionic surfactant granule N2 was manufactured by the following procedure.
  • Silica (Sorbosil TC15 ex Crosfield) was dosed into a Fukae FS30 granulator and a mixture of nonionic surfactant (Synperonic 7 supplied by ICI) and Pristerene 4916 (fatty acid supplied by Unichema) at a temperature of approximately 60 0 C was added on top of the solid. Thereafter, 50% sodium hydroxide solution was sprinkled on top. Directly after addition of the sodium hydroxide, the mixture was granulated using an agitator speed of 200 rpm and a chopper speed of 3000 rpm. Granulation time was in the region 30-60 seconds. The resulting powder was layered with silica and removed from the granulator.
  • the composition was as follows:
  • detergent base powders having the following compositions were prepared in a Vblender by addition of the various powders followed by 5 minutes mixing.
  • the powder properties are shown in the following Tables.
  • Sodium tripolyphosphate built compositions having a medium surfactant level were manufactured by blending the following components. All three compositions had the same final composition (ie that of base powder F2) .
  • the antifoam granule contained 70 wt% sodium carbonate, 18 wt% silicone oil and 12 wt% filler materials.
  • the base powder has been reformulated to include components of compressibility less than 17%, provides a low compressibility and high DFR.
  • Dynamic flow rate is measured by the following method.
  • the apparatus used consists of a cylindrical glass tube having an internal diameter of 35 mm and a length, of 600 mm.
  • the tube is securely clamped in a position such that its longitudinal axis is vertical. Its lower end is terminated by means of a smooth cone of polyvinyl chloride having an internal angle of 15° and a lower outlet orifice of diameter 22.5 mm.
  • a first beam sensor is positioned 150 mm above the outlet, and a second beam sensor is positioned 250 mm above the first sensor.
  • the outlet orifice is temporarily closed, for example, by covering with a piece of card, and powder is poured through a funnel into the top of the cylinder until the powder level is about 10 cm higher than the upper sensor; a spacer between the funnel and the tube ensures that filling is uniform.
  • the outlet is then opened and the time t; (seconds) taken for the powder level to fall from the upper sensor to the lower sensor is measured electronically. The measurement is normally repeated two or three times and an average value taken. If V is the volume (ml) of the tube between the upper and lower sensors, the dynamic flow rate DFR (ml/s) is given by the following equation:
  • the method of measuring compressibility used in the present invention is as follows.
  • the experiment is carried out at 20-25 0 C and a relative humidity of about 40%. These values represent typical ambient conditions in a northern European indoor laboratory environment.
  • the exact relative humidity at which the measurement is carried out is not critical, provided that it is not so high that the samples take up moisture.
  • the apparatus comprises a perspex cylinder with an internal diameter of 54 mm and a height of 170 mm.
  • the side of the cylinder is graduated in millimetres.
  • a piston is provided which fits the internal diameter of the perspex cylinder.
  • the top of the piston has means to support a weight, whereby pressure can be applied to detergent powder contained in the perspex cylinder.
  • the combined mass of the piston and the weight is 25 kg.
  • the perspex cylinder is filled with particulate detergent composition
  • powder (herein after "powder") .
  • the top of the layer of powder is levelled by removing superfluous powder with a straight ⁇ edge.
  • a standard volume of powder is tested.
  • the initial volume is measured by means of the scale on the side of the cylinder.
  • the piston and weight are then lowered onto the surface of the powder and are allowed to rest freely on the powder for 60 seconds.
  • the volume of the powder after 60 seconds is measured by means of the scale on the side of the cylinder.
  • volume reduction is used to calculate the compressibility using the following equation:
  • Compressibility (initial volume - final volume) x 100
  • a elongate tubular sachet 1 containing a particulate detergent composition containing a particulate detergent composition.
  • the sachet 1 comprises a longitudinally folded packaging wrapper having a longitudinal seal 3 and transverse end seals 5,7 at respective ends 9,11 of the wrapper (ie. a "three-seamed" sachet) .
  • the longitudinal seal is a fin seal, formed by contracting the inner faces of the fin together and then bonding, eg. welding the two layers together. If welding is used to bond the surfaces, the bonding inner faces need to be made of thermoplastic material.
  • the end seals 5 and 7 may be heat sealed.
  • the edges have a zig-zag configuration to allow for easy opening of the pack at either end.
  • the sachet measured before filling is 45 mm wide and 185 mm long halved length to width ratio of about 4:1.
  • the sachets are made using vertical form fill and seal
  • VFFS VFFS machinery
  • a long tube is first formed from a sheet of material and creating a longitudinal lap seal as described above.
  • the tube is then moved to a filling station where a section is flattened at a sealing device positioned below the filling station and sealed transversely using an ⁇ impulse' sealer.
  • the tube is then moved downward through a predetermined distance and filled with a dose of the particulate detergent composition. A second seal is then formed across the tube, above the fill level.
  • a sachet 185mm long and 45mm wide with end seals 5-7mm in length, can accommodate approximately 45-5Og, and preferably 47g detergent powder.
  • a dynamic flow rate of at least 100 ml/s is advantageous for such dimensions.

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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)

Abstract

L'invention concerne une composition particulaire pour le traitement de tissus, cette composition ayant une vitesse d'écoulement dynamique d'au moins 90 ml/s. L'invention est caractérisée en ce que cette composition de détergent particulaire est emballée dans un sachet tubulaire allongé, insoluble dans l'eau et doté d'un ou de plusieurs joints d'étanchéité longitudinaux et d'un ou de plusieurs joints d'étanchéité d'extrémités.
PCT/EP2005/007622 2004-07-27 2005-07-12 Composition de detergent particulaire et emballage associe WO2006010482A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05767057A EP1781769A1 (fr) 2004-07-27 2005-07-12 Composition de detergent particulaire et emballage associe
BRPI0513874-4A BRPI0513874A (pt) 2004-07-27 2005-07-12 composição de tratamento de tecido particulada

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0416711.0 2004-07-27
GB0416711A GB0416711D0 (en) 2004-07-27 2004-07-27 A particulate detergent composition and packaging therefore

Publications (1)

Publication Number Publication Date
WO2006010482A1 true WO2006010482A1 (fr) 2006-02-02

Family

ID=32947496

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/007622 WO2006010482A1 (fr) 2004-07-27 2005-07-12 Composition de detergent particulaire et emballage associe

Country Status (6)

Country Link
EP (1) EP1781769A1 (fr)
CN (1) CN101027384A (fr)
AR (1) AR049741A1 (fr)
BR (1) BRPI0513874A (fr)
GB (1) GB0416711D0 (fr)
WO (1) WO2006010482A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000177A (en) * 1977-06-27 1979-01-04 Akzo Nv Detergent compositions
US4239639A (en) * 1979-06-19 1980-12-16 The Procter & Gamble Company Granular detergent composition comprising air-sensitive material in protective bag
US4290903A (en) * 1978-06-26 1981-09-22 The Procter & Gamble Company Packaged free flowing bleach activator product
US4637891A (en) * 1981-03-20 1987-01-20 Lever Brothers Company Process for the manufacture of detergent compositions containing sodium aluminosilicate
EP0293139A2 (fr) * 1987-05-23 1988-11-30 The Procter & Gamble Company Compositions de lavage
EP0345838A2 (fr) * 1988-05-18 1989-12-13 The Procter & Gamble Company Sachet pour le traitement de tissus à dosage unitaire
US4915862A (en) * 1988-08-11 1990-04-10 The Procter & Gamble Company Granular detergent compositions containing crutched and admixed phosphate builder system
US5002679A (en) * 1984-04-27 1991-03-26 Lever Brothers Company, Division Of Conopco, Inc. Bleach products
EP0425277A2 (fr) * 1989-10-27 1991-05-02 Unilever Plc Compositions détergentes
WO1992007060A1 (fr) * 1990-10-18 1992-04-30 Unilever N.V. Compositions detergentes
WO1998054286A1 (fr) * 1997-05-30 1998-12-03 Unilever Plc Compositions detergentes particulaires

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000177A (en) * 1977-06-27 1979-01-04 Akzo Nv Detergent compositions
US4290903A (en) * 1978-06-26 1981-09-22 The Procter & Gamble Company Packaged free flowing bleach activator product
US4239639A (en) * 1979-06-19 1980-12-16 The Procter & Gamble Company Granular detergent composition comprising air-sensitive material in protective bag
US4637891A (en) * 1981-03-20 1987-01-20 Lever Brothers Company Process for the manufacture of detergent compositions containing sodium aluminosilicate
US5002679A (en) * 1984-04-27 1991-03-26 Lever Brothers Company, Division Of Conopco, Inc. Bleach products
EP0293139A2 (fr) * 1987-05-23 1988-11-30 The Procter & Gamble Company Compositions de lavage
EP0345838A2 (fr) * 1988-05-18 1989-12-13 The Procter & Gamble Company Sachet pour le traitement de tissus à dosage unitaire
US4915862A (en) * 1988-08-11 1990-04-10 The Procter & Gamble Company Granular detergent compositions containing crutched and admixed phosphate builder system
EP0425277A2 (fr) * 1989-10-27 1991-05-02 Unilever Plc Compositions détergentes
WO1992007060A1 (fr) * 1990-10-18 1992-04-30 Unilever N.V. Compositions detergentes
WO1998054286A1 (fr) * 1997-05-30 1998-12-03 Unilever Plc Compositions detergentes particulaires

Also Published As

Publication number Publication date
AR049741A1 (es) 2006-08-30
GB0416711D0 (en) 2004-09-01
BRPI0513874A (pt) 2008-05-20
CN101027384A (zh) 2007-08-29
EP1781769A1 (fr) 2007-05-09

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