Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
  • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
  • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
  • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
• • 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

Definitions

• This invention relates to a package containing a powdered detergent, more particularly to a gas and/or vapour tight package.
• powdered detergents have always been packed as loose powder, i.e. the contents of the package were, at least partly, filled with air. Also because of the low density of powdered detergents, such packages occupy a large volume.
• One object of the invention is to provide a package containing a powdered detergent which occupies little volume, without necessarily using the high-density formulation for the powdered detergent.
• the invention relates to a package containing a powdered detergent, which is characterized in that the powdered detergent is packed in compressed form in a gas and/or vapour tight foil.
• the invention basically comprises three variants of packaging detergents utilizing compression, namely under vacuum, in a shrink-foil or under external overpressure.
• the detergent is compressed, so that it occupies a minimal volume and does not set during storage and transport.
• the detergent is packaged under vacuum, which means that a vacuum is produced after filling of the package, so that the powder is compressed after the package has been closed.
• This system has long been known for the packaging of ground coffee.
• a requirement for this variant is that the foil should be reasonably gas tight.
• an underpressure of 0.1 to 0.9 bar is used in this package.
• a shrink-foil is used.
• the powder is packaged in a foil, which is heated after packaging and then shrinks, thereby compressing the powder.
• the package can be sealed hermetically. However, this is not necessary.
• the third variant of the invention comprises packaging the powder under pressure.
• a particular requirement for the package in this variant is that it must be resistant to the forces generated as a result of the pressure applied.
• the overpressure employed preferably ranges from 0.5 to 15 bar.
• a surprising advantage of the invention is that for packaging, relatively inexpensive, and often environment-friendly, materials can be used, such as paper or synthetic foils, for example surlyn foil, polypropylene foil or polyethylene foil, optionally coated and/or laminated with a lacquer, nylon, polyester or aluminum.
• the invention can be used for all types of powdered detergents.
• the powdered detergent preferably consists of agglomerates which are composed of a core, in which the more hygroscopic ingredients are located, and a shell, in which the less hygroscopic ingredients are located.
• the present invention also relates to a powdered detergent which is suitable for use in compressed form, as defined according to the invention.
• Such a powdered detergent consists of agglomerates having a core, in which the more hygroscopic ingredients are located, and a shell, in which the less hygroscopic ingredients are located.
• detergent-active agents and bleaching agents are located in the core, while bicarbonate is incorporated in the shell.
• the shell can also contain a metal soap.
• the proportions of the amounts of the core and the shell can vary within broad limits. These proportions also depend strongly on the composition of the detergent. In general, the core constitutes about 20-80% by weight of the total detergent and the shell about 20-80% by weight.
• the detergent consists of
• the detergent agents used are preferably anionic or non-ionic detergents, such as fatty alcohol ethoxylate and/or sodium dodecyl benzene sulfonate. More particularly, fatty alcohol ethoxylate and sodium dodecyl benzene sulfonate are used in equal amounts by weight.
• a bleaching agent preferably sodium perbonate is used, preferably with 4 molecules of water of crystallization, although the modification with one molecule of water of crystallization can also be used.
• supplementary additives may be used as well, as is conventional for powdered detergents of the present type.
• supplementary additives are colourings, optical whitening agents, perfume, enzymes and the like.
• the invention also relates to a method for preparing such a powdered detergent, which comprises agglomerating a part of the components of the detergent to form primary agglomerates, followed by agglomerating said primary agglomerates with the remaining component(s).
• the more hygroscopic components are agglomerated to form primary agglomerates, whereupon these primary agglomerates are agglomerated with the less hygroscopic components.
• This method can be carried out in the conventional apparatus for powdered detergents, using the conventional conditions.
• Example 1 An enzymatic soaking detergent
• the dose for I is 90 g detergent for a normal washing machine load that is to be soaked.
• the dose for II is 130 grams.
• the sodium sulfate together with half the amount of the sodium carbonate is initially present.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is less than 40%.
• the cooled product is finally packaged in a vacuum-packaging machine in an externally lacquered polyethylene foil package, formed in the machine.
• Example 2 An enzymatic prewash detergent
• the dose for I is 60 g detergent for a normal washing machine load that is to be soaked.
• the dose for II is 87 g.
• the total amount of B and half the amount of A is applied to a fluid bed apparatus. Added thereto is the mixture of D and E in a melted state, so finely divided and so slowly that a pulpy, granular product is obtained. During the subsequent cooling period, C is added first, and then the enzyme granulates and the residue of A and the minors are admixed.
• the sodium sulfate together with half of the amount of the sodium carbonate is initially present.
• the product formed is cooled in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is less than 40%.
• the cooled product is finally packaged in a vacuum-packaging machine in a package that is formed in the machine from a polyethylene foil coated with aluminum.
• Example 3 An enzymatic soaking detergent
• the dose for I is 90 grams of detergent for a normal washing machine load to be soaked.
• the dose for II is 130 grams.
• Half of the amount of A and the total amount of B are initially present in a Z-blade mixer of sufficient capacity, after which C and D are successively added. After C, D and F have been added, E, heated to about 90 C, is added so slowly that a product of the desired grain size is obtained. After cooling, the minors are added first, followed by the enzyme granulates and, finally, the residue of A.
• the sodium sulfate together with half of the amount of the sodium carbonate is initially present.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is 40%.
• the finished product is finally packed in a vacuum-packaging machine in an externally lacquered polyethylene foil package, which is formed in the machine.
• the dose for II is 87 grams.
• B together with half of the amount of A is intially present in a Z-blade mixer of sufficient capacity, after which C and D are successively added.
• E heated to about 90 C, is added so slowly that a product of the desired grain size is obtained.
• the minors are added, followed by the enzyme granulates and finally B.
• the sodium sulfate together with half of the amount of the sodium bicarbonate and the soda is initially present.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is 40%.
• the finished product is finally packed in a vacuum-packaging machine in an externally lacquered polyethylene foil package, formed in the machine.
• Example 5 An enzymatic main wash detergent
• the dose is 90 grams of detergent for a normal washing machine (taking in 18 liters of water for washing).
• A is initially present in a Z-blade mixer of sufficient capacity, after which B, D, and C are successively added. Subsequently, E is heated to about 90 C and sprayed on so slowly that a product of the desired grain size is obtained. After cooling, first the minors are added, followed by the enzyme granulates and finally F.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is 40%.
• the finished product is finally packed in a vacuum-packaging machine in an externally lacquered polyethylene foil package, formed in the machine.
• Example 6 An enzymatic main wash detergent
• the dose is 90 grams of detergent for a normal washing machine (taking in 18 liters of water for washing).
• A is initially present in a Z-blade mixer of sufficient capacity, after which C and D are successively added. Subsequently, E, heated to about 90 C, is sprayed onto the prepared powder mixture, so slowly that a product of the desired grain size is obtained. After cooling, the minors are added first, followed by the enzyme granulates and, finally, B and F.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is less than 40%.
• the finished product is finally packed in a vacuum-packaging machine in an externally lacquered polyethylene foil package, formed in the machine.
• Example 7 A concentrated, enzymatic main wash detergent for lower temperatures. The new method is also very useful in this modern trend in the detergent industry.
• the dose is 45 grams of detergent for a normal washing machine (taking in 18 liters of water for washing).
• F is initially present in a fluid bed of sufficient capacity, after which A, C, D, and E are successively added. Subsequently, B, heated to about 90 C, is added so slowly that a product of the desired grain size is obtained. After cooling, the minors are added first, and finally the enzyme granulates.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is about 40%.
• the finished product is finally packed in a vacuum-packaging machine in a package of externally lacquered polyethylene foil, formed in the machine.
• Example 8 A concentrated, enzymatic main wash detergent for lower temperatures. The new method is also eminently useful in this modern trend in the detergent industry. Also for a less conventional composition.
• the dose is 45 grams of detergent for a normal washing machine (taking in 18 liters of water for washing).
• F is initially present in a fluid bed of sufficient capacity, after which A, C, D, and E are successively added. Subsequently, B, heated to about 90 C, is added so slowly that a product of the desired grain size is obtained. After cooling, the minors are added first, and finally the enzyme granulates.
• the product formed is stored in a closed vessel in a room of low humidity.
• the temperature of the room is 15° C and the humidity is about 40%.
• the finished product is finally packed in a vacuum-packaging machine in an externally lacquered polyethylene foil package, formed in the machine.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical 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)
• Packages (AREA)
• Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=19857443

Family Applications (1)

Country Status (7)

Cited By (5)

Families Citing this family (1)

Family Cites Families (2)

• 1990
  • 1990-07-19 NL NL9001651A patent/NL9001651A/nl not_active Application Discontinuation
• 1991
  • 1991-07-18 EP EP91201897A patent/EP0467481B1/fr not_active Expired - Lifetime
  • 1991-07-18 DE DE69109200T patent/DE69109200D1/de not_active Expired - Lifetime
  • 1991-07-18 AT AT91201897T patent/ATE121772T1/de not_active IP Right Cessation
  • 1991-07-18 DK DK91201897.5T patent/DK0467481T3/da active
  • 1991-07-19 JP JP3179713A patent/JPH04226600A/ja not_active Withdrawn
  • 1991-07-19 AU AU81131/91A patent/AU651602B2/en not_active Ceased

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