EP1248736A1 - Recipient portatif pour liquides - Google Patents

Recipient portatif pour liquides

Info

Publication number
EP1248736A1
EP1248736A1 EP99949808A EP99949808A EP1248736A1 EP 1248736 A1 EP1248736 A1 EP 1248736A1 EP 99949808 A EP99949808 A EP 99949808A EP 99949808 A EP99949808 A EP 99949808A EP 1248736 A1 EP1248736 A1 EP 1248736A1
Authority
EP
European Patent Office
Prior art keywords
aperture
container
housing
distal end
detergent composition
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.)
Withdrawn
Application number
EP99949808A
Other languages
German (de)
English (en)
Inventor
Israel Josue Silud
Citra Wijaya Ng
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of EP1248736A1 publication Critical patent/EP1248736A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/42—Closures with filling and discharging, or with discharging, devices with pads or like contents-applying means
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/127—Snap-on caps
    • B65D47/128—Snap-on caps with internal parts

Definitions

  • the present invention relates to containers. More specifically, the current invention relates to containers for predissolving a composition.
  • Pre-treating usually entails washing or scrubbing a soiled area with a detergent and/or bleach product which is specifically intended for pre- treating.
  • pre-treaters include spray-on pre-treaters contained in a spraying applicator, gel-type pre-treaters, and stick-type pre-treaters.
  • pre- treaters typically include the detergent and/or bleach product within a specific pre-treater container. When the pre-treatment composition is completely consumed, the pre-treater container itself is typically discarded as waste.
  • disposable pre-treater containers may be formed of certain plastics, or other non-biodegradable materials, some consumers find them environmentally undesirable.
  • certain re-usable pre-treaters are known which predissolve a detergent to provide a pre-treating solution.
  • these pre-treaters may be complicated to assemble, and/or may be expensive to fabricate.
  • a pre-treater which contains a filter may be excellent at preventing clogging; however, the filter itself may be expensive, or may require additional steps in order to assemble within the pre-treater.
  • known pre-treaters may require that the manufacturing tolerances of the container be very closely followed, so as to prevent leaking.
  • Such inflexible manufacturing tolerances require an increased level of technological complexity, and tight control over manufacturing processes. These additional features and/or fabrication steps may significantly increase the pre-treater's manufacturing costs. Such pre-treaters may therefore be too expensive to produce and sell in countries where hand washing, pretreating, and/or predissolving is most common.
  • the need exists for a pre-treater for predissolving a detergent and/or bleaching composition, which is easy to use, and inexpensive to produce and assemble.
  • the need also exists for a re-useable pre-treater having one or more of these characteristics.
  • the present invention relates to a hand-held container for predissolving a detergent composition
  • a hand-held container for predissolving a detergent composition including a housing and an aperture cover.
  • the housing is for containing a predetermined amount of a detergent composition and a solvent, and includes a dispensing passage.
  • the dispensing passage includes a distal end and a flow restriction portion at the distal end.
  • the flow restriction portion includes at least one aperture.
  • the aperture cover includes an aperture plug corresponding to each aperture. When the aperture cover covers the distal end, each aperture plug passes substantially through one aperture.
  • a hand-held container having a flow restriction portion including an aperture and an aperture cover with an aperture plug which passes substantially through the aperture avoids the need for a filter to prevent clogging.
  • the container is easy to assemble, inexpensive to produce, and/or easy to use.
  • the hand-held container is preferably re-useable, in order to reduce waste.
  • Fig. 1 is a cut-away view of an embodiment of the present invention
  • Fig. 2 is a close-up cut-away view of an embodiment of the present invention
  • Fig. 3 is a perspective view of an embodiment of the present invention.
  • blockage typically indicates a mixture of detergent and/or solvent which either partially, or completely blocks, occludes, or obstructs the aperture to reduce or eliminate flow of the detergent composition and solvent through the aperture.
  • the blockage is typically a partially-dissolved gel or paste-like mass.
  • the blockage may be contain dirt, or other impurities which have been accidentally, or purposely introduced into the container.
  • Fig. 1 shows a cut-away view of an embodiment of the present invention.
  • the container, 10 is formed by a housing, 12, for containing a predetermined amount of a detergent composition and a solvent, 14.
  • the housing further includes a cap member, 16, which includes a dispensing passage, 18, through which the detergent composition and solvent, 14, must pass in order to exit the container, 10.
  • the housing, 12, and the optional cap member, 16, form a substantially water-tight seal so as to avoid leakage and messiness during use.
  • the dispensing passage, 18, contains a distal end, 20, situated distal from the detergent composition and solvent, 14.
  • the distal end, 20, contains a flow restriction portion, 22, which prevents the detergent composition and solvent, 14, from flowing out of the container, 10, too quickly and messily.
  • the flow restriction portion, 22, includes at least one aperture, 24, through which the detergent composition and solvent, 14, may exit the container, 10, when it is properly aligned so as to dispense the detergent composition and solvent, 14, out of the aperture, 24.
  • aperture does not include open-cell structures and porous structures, such as sponges. Such open-cell and convoluted porous structures are not intended to be within the scope of the present invention, because the aperture plug can not clear a blockage from such a structure when the aperture cover is replaced on the distal end.
  • the number and size(s) of the aperture(s) should be tailored to specific physical characteristics of the detergent solution to be dispensed, the solvent used, and consumer preferences.
  • a viscous fluid requires either a larger aperture or a greater number of apertures, for easy and effective dispensing; conversely, a low viscosity fluid would require either a small aperture or relatively few of them, so as to prevent too much detergent and solvent from being dispensed too quickly.
  • a preferred aperture size is from about 0.2 mm 2 to about 500 mm 2 , more preferably from about 0.7 mm 2 to about 150 mm 2 , and even more preferably from about 1.7 mm 2 to about 60 mm 2 in area. If more than one aperture is present, then the total area of all apertures is preferably within these ranges.
  • the single aperture, 24, is covered with and enclosed by an aperture cover, 26, which prevents leaking of the detergent composition and solvent, 14.
  • the aperture cover, 26, is placed on the distal end, 20, to cover the aperture, 24, when the container, 10, is not being used to apply the detergent composition and solvent, 14. However, when the detergent composition and solvent, 14, is to be applied to an item, the aperture cover, 26, should be removed, and the container, 10, tilted and optionally squeezed to dispense the detergent composition and solvent, 14, out of the aperture, 24.
  • the aperture cover, 26, removably covers the distal end, 20, the flow restriction portion, 22, and the aperture, 24.
  • the aperture cover When in place, the aperture cover reduces messiness if the container is shaken, dropped, or falls over; however, when removed, the aperture cover should not block, hinder, or interfere with dispensing of the detergent composition and solvent from the container.
  • the container may often be shaken in order to predissolve the detergent composition and/or to mix the detergent composition and solvent, it is highly preferred that the aperture cover forms a water-tight seal with a container portion.
  • this water-tight seal may be formed between the aperture cover and the aperture itself, between the aperture cover and the applicator, between the aperture cover and the cap member, and/or between the aperture cover and any other suitable portion of the container.
  • the aperture cover when the aperture cover covers the distal end, the aperture and the aperture plug (see below, at 28) form a substantially water-tight seal.
  • the housing and the optional cap member also form a water-tight seal.
  • the aperture cover, 26, further contains an aperture plug, 28.
  • the aperture cover, 26, covers the distal end, 20, the aperture plug, 28, passes substantially through the aperture, 24, to the inside of the container, 10, at the distal end, 20. This allows the aperture plug, 28, to dislodge any detergent composition and solvent, 14, which may otherwise clog up the aperture, 24.
  • the aperture contains an interior aperture edge (Fig.
  • the aperture plug extends beyond the interior aperture edge and into the distal end, more preferably the aperture plug extends at least 0.1 mm beyond the interior aperture edge and into the distal end, and even more preferably the aperture plug extends from about 0.1 mm to about 10 mm beyond the interior aperture edge and into the distal end.
  • the aperture plug described herein eliminates the need for a filter (not shown). As a filter is typically expensive, and the installation of a filter requires additional attachments and/or assembly steps (e.g., gluing, or sealing) which may significantly increase the complexity and expense of fabricating the container, it is highly preferred that the container herein does not contain a filter.
  • the aperture cover includes an aperture plug corresponding to each aperture, and each aperture plug passes substantially through one aperture (i.e., the corresponding aperture).
  • one aperture plug passes substantially through each aperture, and each aperture plug forms a substantially water-tight seal with the corresponding aperture.
  • the number of apertures and corresponding aperture plugs is from about 1 to about 10, more preferably from about 1 to about 6, and even more preferably from about 1 to about 3.
  • Multiple apertures and their corresponding aperture plugs may be arranged together, in a pattern, or separately, and are preferably arranged together.
  • the aperture, 24, is surrounded by a brush, 30, which is used as an applicator to apply the detergent composition and solvent to the item to be cleaned.
  • the applicator is preferably associated with at least one aperture such that when the detergent composition and solvent exit the aperture, they immediately commingle with the applicator to allow convenient, accurate, and easy application of the detergent composition and solvent to the item to be cleaned.
  • Nonlimiting examples of the applicator useful herein includes a brush, a roller ball, a sponge, a nozzle, bristles, and combinations thereof, of which a brush, and bristles are preferred. It is preferred that at least one applicator be utilized herein, preferably one or two applicators.
  • the applicator may be made of any applicable material, such as plastics, fur, cloth, polymers, rubber, wooden materials, and combinations thereof. Preferred materials for the applicator include polyesters, polyethylene, polypropylene, plastics, and combinations thereof.
  • the brush/bristle strength and length may be tailored to the type of cleaning to be performed. For example, in cleaning fabrics, bristles which are too stiff may harm the fabrics to be cleaned, especially delicate fabrics such as silk. Accordingly, either longer bristles, or softer bristles are preferred.
  • preferred brushes have a bristle strength of less than about 200 N/cm 2 , preferably less than about 150 N/cm 2 . Bristle strength is measured using the method of JIS S 3016, except that a press head speed of 12.5 mm/min, and a bristle area of about 5.5 cm 2 are used; JIS S 3016 is a Japanese Industrial Standard for measuring toothbrush bristle strength.
  • the compression testing machine used herein is a Compression Tester, model YLM-5, made by Toyo Tester of Osaka, Japan. For non-fabric cleaning applications, or less sensitive surfaces, stiffer bristles may be desirable.
  • the dispensing passage, 22, contains an optional neck portion,
  • the neck portion, 32 which forms part of the dispensing passage, 18.
  • the neck portion, 32 is disposed inwardly of the distal end, 20, i.e., between the distal end, 20, and the bottom of the housing, 12.
  • the neck portion may be curved, as shown in Fig. 1 , or may be straight (not shown).
  • Fig. 2 shows a close-up cut away view of a preferred embodiment of the present invention.
  • the neck portion, 32 is curved and aligns the aperture, 24, along an aperture angle, ⁇ . If present, the aperture angle is measured between the vertical line drawn through the container (a-a), and a line going through and parallel to the orientation of the aperture (b-b).
  • the aperture angle useful herein is of from about 90 degrees to about 180 degrees, and a preferred aperture angle useful herein is an obtuse angle of from about 120 degrees to about 150 degrees. It has been found that an aperture angle of less than 120 degrees becomes cumbersome to manufacture, while an aperture angle of greater than 150 degrees is inconvenient because it increases the likelihood of blockages forming. A more preferred aperture angle is from about 120 degrees to about 140 degrees.
  • the aperture, 24, contains an interior aperture edge, 34.
  • the aperture plug, 28, extends beyond the interior aperture edge, 34, and into the distal end, 20.
  • the aperture plug, 28 helps to clear blockages from obstructing the flow of detergent composition and solvent (see Fig. 1 at 14) through the aperture, 24.
  • the aperture, 24, is surrounded by a brush, 30, with which the detergent composition and solvent (Fig. 1 at 14) commingles upon exiting the container, 10.
  • a brush, 30, with which the detergent composition and solvent (Fig. 1 at 14) commingles upon exiting the container, 10.
  • an applicator such as a brush
  • Fig. 2 also shows a notch, 36, in the neck portion, 32, of the cap member, 16, and adjacent to the removable aperture cover, 26.
  • the notch, 36 allows the user to press the edge of their finger, fingernail, etc., against the aperture cover, 26, in order to easily remove it from the cap member, 16.
  • the aperture cover, 26, also contains an optional frictional surface, 38.
  • the aperture cover contains a plurality of frictional surfaces, 38.
  • the housing, the cap member, the neck portion, the aperture cover, or any other container component may contain at least one frictional surface to improve the user's grip, for aesthetic reasons, or for any other reason.
  • a frictional surface helps the user maintain their grip.
  • the frictional surface may help the user to easily remove and replace the aperture cover.
  • Nonlimiting examples of the preferred frictional surface useful herein include a ridge, a depression, a rubber grip, and combinations thereof.
  • the frictional surface may be formed integrally with the container component(s), or added separately.
  • a frictional surface is especially preferred on both the housing and the cap member, if present, because these portions of the container may become slippery during use.
  • raised or lowered usage instructions serve the dual purpose of also acting as a frictional surface.
  • the aperture cover may be attached to the neck portion, the cap member, and/or the housing via a variety of closures, such as the snap-type closure of Fig. 2.
  • closures such as the snap-type closure of Fig. 2.
  • Other types of closures are also useful herein, and preferably form water-tight seals.
  • Nonlimiting examples of a preferred closure is a screw-type closure, a snap-type closure, a hinge-type closure, a sliding closure, and combinations thereof. From a manufacturing standpoint, a snap-type closure, and a screw- type closure are preferred, as they are inexpensive to form, even if they are water-tight seals.
  • An optional feature which may be included wherever a water- tight seal is desired is an inner plug seal, a trigger seal, and/or any of many well- known contact-ring seals.
  • a separately-formed, or an integrally-formed gasket- type seal may also be used herein.
  • Fig. 2, at 40 shows an inner plug seal on the cap member, 16.
  • the inner plug seal if present, runs around substantially the entire inner circumference of a female member to be sealed, and is received by a reciprocal fitting on the male sealing member.
  • Inner plug seals and gasket-type seals are preferred as they are inexpensive to form, and are surprisingly watertight.
  • An inner plug seal is especially water-tight, if the female member to be sealed is formed of a softer or more resilient material than the reciprocal male member.
  • the female member may be formed of a harder or less resilient material than the reciprocal male member. This combination of a harder and a softer material may also provide substantial additional advantages, such as a reduction in the amount of torque required to form a water-tight seal with a screw-type closure.
  • a contact-ring seal (not shown), which runs along the inner surface of a female member and forms a seal with the very tip of the male member, is also preferred herein. Additional seals and closures useful herein are described as "Closures, Bottle and Jar," in "The Wiley Encyclopedia of Packaging Technology.” A. L. Brady and K. S. Marsh, editors, pp. 206-20, (John Wiley & Sons, New York, 2 nd Ed. 1997).
  • Fig. 3 is a perspective view of the present invention, showing a container, 10, having a housing, 12, a cap member, 16, attached to the housing, 12, and an aperture cover, 26, attached to the cap member, 16.
  • a container, 10, having a housing, 12, a cap member, 16, attached to the housing, 12, and an aperture cover, 26, attached to the cap member, 16.
  • an optional lip, 42 running along the circumference of the housing, for improving structural rigidity of the closure area. If the lip is placed on the outside of the housing, then it may also serve to catch drips as well as to act as a frictional surface.
  • the container may be formed in a variety of shapes and sizes, preferably the shape and size of the housing allow the container to be easily, comfortably, and conveniently held in the hand. More preferably, the housing is shaped in an easy-to-form shape which reduces container fabrication costs. Such easy-to- form shapes include those having a circular cross-section (such as cylindrical shapes), a square or rectangular cross-section, an oval cross-section, and combinations thereof, and more preferably those having a circular cross-section.
  • a cylindrical-shaped container having a circular cross-section with thin walls is especially preferred as it is easy and inexpensive to fabricate, provides good resiliency and squeezability, does not require mold timing-orientation during molding, does not require a specific orientation during use, and simultaneously balances significant structural benefits such as acceptable rigidity and consumer-desirable resiliency.
  • Such circular cross-sectioned containers are also easily adapted to contain a water-tight, screw-type closure.
  • the container shape may be tapered, or remain the same width throughout.
  • Preferred container materials include plastics and polymers, flexible materials such as films and laminated papers, rubber, glass, metal, and combinations thereof.
  • More preferred container materials include rubber, plastic, polyesters, and combinations thereof, and even more preferred container materials include polyethylene, polypropylene, polyethylene terephthalate, and combinations thereof.
  • Preferred production processes are blow molding, injection molding, injection blow molding, vacuum forming, thermoforming, and combinations thereof.
  • the various individual container portions may be formed with different materials, and/or by different processes, as desired.
  • the container material include translucency, transparency, or opaqueness, easy formation to the desired shape(s), resistance to detergent solutions and applicable pH ranges, durability, coloration, and softness to allow the container to be added to the wash cycle without causing undue noise. It is highly preferred that the container material be transparent or translucent, to allow the user to visibly gauge the level of detergent composition and/or solvent. If the container is to be placed inside the wash cycle, then the material chosen should be both water resistant and temperature resistant to those temperatures at which detergent solutions are used, i.e., typically from about 5°C to about 60°C. Ideally, the container material selected should be resistant to temperatures ranging from below freezing up to above the temperatures at which clothes dryers operate. These optimal ranges may be relevant, for example, where consumers store cleaning supplies outside during the winter, and where the container may be transferred, either intentionally or unintentionally, into a clothes dryer.
  • the housing which attaches to the cap member should be of sufficient width to easily add the detergent composition and solvent into the housing without spilling.
  • the preferred size and shape of the housing depends upon many factors such as the type of detergent composition intended for use therein.
  • the preferred detergent composition useful herein is typically selected from the group consisting of a granular detergent composition, a solid detergent composition, a detergent tablet composition, a liquid detergent composition, a gel-type detergent composition, a paste detergent composition, and combinations thereof, preferably a granular detergent composition, a detergent tablet composition, a gel-type detergent composition, a paste detergent composition, and combinations thereof.
  • the housing be wide enough to accept a scoop and even a "heaped" scoop.
  • preferred mouth sizes for such containers are from about 30 mm to about 120 mm, preferably from about 50 mm to about 105 mm, and more preferably from about 60 mm to about 95 mm in width, as measured at the widest point of the housing.
  • Preferred housing sizes for containers for use with liquid, gel-type, tablet, paste detergent compositions are from about 20 mm to about 95 mm, preferably from about 35 mm to about 85 mm, and more preferably from about 45 mm to about 80 mm in width, as measured at the widest point of the housing.
  • the preferred housing thickness is less than about 3 mm, more preferably less than about 1.5 mm, and even more preferably less than about 0.8 mm, for improved resiliency and squeezability.
  • the housing and the container be of a reusable type, and the design should therefore facilitate easy reuse, refilling, and cleaning. It is also preferable that the container be shaped and balanced such that it may remain standing upright, without leaking, when placed on a flat surface.
  • the container of the present invention is not limited to use with a detergent composition and a solvent, but may also be used to apply, for example, a bleach composition, a gel composition, and a colorant composition. Accordingly, in the present description, any of these other compositions may replace the words "detergent composition".
  • a composition selected from the group consisting of a bleaching composition, a detergent composition, and a mixture thereof are used in the container described herein, and more preferably a detergent composition is used in the container described herein.
  • the detergent composition useful herein typically contains one or more ingredients selected from the group consisting of a detersive surfactant, a bleach, a bleach activator, a builder, an optical brightener, an enzyme, a fabric softener, and mixtures thereof; preferably an anionic surfactant, an oxygen bleach, a bleach activator, a builder, an enzyme, a fabric softener, and mixtures thereof.
  • the detergent composition herein typically comprises, by weight of the detergent composition, at least about 0.01 % of a detersive surfactant; more preferably at least about 0.1%; even more preferably from about 1 % to about 55%; and even more preferably still from about 1 % to about 35%.
  • the detersive surfactant may be selected from an anionic surfactant, a cationic surfactant, a nonionic surfactant, a zwitterionic surfactant, and a mixture thereof; preferably from an anionic surfactant, and a mixture thereof.
  • Particularly useful anionic surfactants include the C 10 -C 20 branched and linear alkyl benzene sulfonate surfactants, and the C 10 -C 20 alkyl sulfate surfactants.
  • the detergent composition herein typically contains, by weight of the detergent composition, a bleach at a level of from about 0.5% to about 30%, preferably from about 1.5% to about 20%.
  • the amount of bleach activator will typically be from about 0.1 % to about 60%, preferably from about 0.5% to about 40%, by weight.
  • a preferred bleach includes an oxygen bleach, a chlorine bleach, a photobleach, an enzymatic bleach, and a mixture thereof, and more preferably an oxygen bleach, and a mixture thereof.
  • a highly preferred oxygen bleach includes hydrogen peroxide, percarbonate, perborate, per-acids, per-oxides, and mixtures thereof.
  • a preferred bleach activator includes a transition metal bleach catalyst, a hydrophilic bleach activator, a hydrophobic bleach activator, and a mixture thereof, more preferably a manganese bleach catalyst, N,N,N'N'-tetraacetyl ethylene diamine (TAED), nonanoyloxybenzene sulfonate (NOBS), 6-nonylamino-6-oxoperoxycaproic acid (NAPAA), and mixtures thereof.
  • TAED N,N,N'N'-tetraacetyl ethylene diamine
  • NOBS nonanoyloxybenzene sulfonate
  • NAPAA 6-nonylamino-6-oxoperoxycaproic acid
  • a builder may be included in the detergent composition herein to assist in controlling mineral hardness, and to assist in the removal of particulate soils.
  • the level of builder may vary widely depending upon the end use of the composition and its desired physical form.
  • the detergent composition will typically comprise at least about 1 % builder.
  • Liquid detergents typically comprise from about 5% to about 50%, more typically about 5% to about 30%, by weight, of a builder.
  • Granular detergent compositions typically comprise from about 10% to about 80%, more typically from about 15% to about 50% by weight, of a builder. Lower or higher levels of builder, however, are not meant to be excluded.
  • a phosphate builder, a silicate builder, a zeolite builder, a carboxylate builder, a carbonate builder, a citrate builder, a polycarboxylate builder, and a mixtures thereof is useful herein; preferably the builder is selected from Zeolite A, Zeolite P (B), Zeolite MAP, Zeolite X, layered silicate builders, carbonate, and mixtures thereof.
  • Useful builders are also described in U.S. Patent 4,664,839, issued May 12, 1987 to Rieck; German Patent Application No. 2,321 ,001 to Jacobsen, et al., published November 15, 1973; U.S. Patent 4,566,984 to Bush, issued January 28, 1986; U.S. Patent 4,144,226 to Crutchfield, et al., issued March 13, 1979; and in U.S. Patent 3,308,067 to Diehl, issued March 7, 1967.
  • optical brighteners or other brightening or whitening agents known in the art may be incorporated at levels typically from about 0.05% to about 1.2%, by weight, into the detergent composition.
  • Specific examples of optical brighteners which are useful in the present compositions are those identified in U.S. Patent 4,790,856, issued to Wixon on December 13, 1988. These brighteners include the PHORWHITE series of brighteners from Verona.
  • Tinopal UNPA Tinopal CBS and Tinopal 5BM
  • Ciba-Geigy available from Ciba-Geigy
  • Artie White CC and Artie White CWD available from Hilton-Davis, located in Italy
  • the 2-(4-stryl-phenyl)-2H-napthol[1 ,2- djtriazoles 4,4'-bis- (1 ,2,3-triazol-2-yl)-stilbenes
  • 4,4'-bis(stryl)bisphenyls and the aminocoumarins.
  • these brighteners include 4-methyl-7- diethyl- amino coumarin; 1 ,2-bis(-venzimidazol-2-yl)ethylene; 1 ,3-diphenyl- phrazolines; 2,5-bis(benzoxazol-2-yl)thiophene; 2-stryl-napth-[1 ,2-d]oxazole; and 2-(stilbene-4-yl)-2H-naphtho- [1 ,2-d]triazole. See also U.S. Patent 3,646,015, issued February 29, 1972 to Hamilton. Anionic brighteners are preferred herein.
  • An enzyme may also be useful herein for a variety of purposes, including removal of protein-based, carbohydrate-based, or triglyceride-based stains from substrates, for the prevention of refugee dye transfer in fabric laundering, and for fabric restoration.
  • a suitable enzyme herein includes an amylase, a cellulase, a cutinase, a lipase, a peroxidase, a protease, and mixtures thereof of any suitable origin, such as vegetable, animal, bacterial, fungal and yeast origin. Preferred selections are influenced by factors such as pH-activity and/or stability optima, thermostability, and stability to active detergents, builders and the like.
  • bacterial or fungal enzymes are preferred, such as bacterial amylases and proteases, and fungal cellulases.
  • typical amounts are up to about 5 mg by weight, more typically 0.01 mg to 3 mg, of active enzyme per gram of the detergent composition.
  • the detergent composition will typically comprise, by weight, from about 0.001 % to about 5%, preferably from about 0.01 % to about 1 % of a commercial enzyme preparation.
  • Protease enzymes are usually present in such commercial preparations at levels sufficient to provide from 0.005 to 0.1 Anson units (AU) of activity per gram of the detergent composition.
  • amylase useful herein includes, for example, -amylases described in GB 1 ,296,839 to Outtrup H, et al., published November 22, 1972 to Novo Industries A/S of Denmark (hereinafter, "Novo”); RAPIDASE® from International Bio-Synthetics, Inc.; TERMAMYL® from Novo; NATALASE® from Novo; and FUNGAMYL® from Novo.
  • Cellulases usable herein include both bacterial and fungal types, preferably having a pH optimum between 5 and 9.5.
  • U.S. 4,435,307 to Barbesgoard, et al., March 6, 1984 discloses suitable fungal cellulases from Humicola insolens or Humicola strain DSM1800 or a cellulase 212-producing fungus belonging to the genus Aeromonas, and cellulase extracted from the hepatopancreas of a marine mollusk, Dolabella Auricula Solander.
  • Suitable cellulases are also disclosed in GB-B-2,075,028 to Barbesgaar, et al., issued March 28, 1984; GB-B-2,095,275 to Murata, et al., issued August 7, 1985 and DE-OS-2,247,832 to Horikoshi and Ikeda, issued June 27 1974. CAREZYME® and CELLUZYME® from Novo are especially useful. See also WO 91/17243 to Hagen, et al., published November 14, 1991.
  • Cutinase enzymes suitable for use herein are described in WO 88/09367A to Kolattukudy, et al., published December 1 , 1988.
  • Suitable lipase enzymes for detergent usage include those produced by microorganisms of the Pseudomonas group, such as Pseudomonas stutzeri ATCC 19.154, as disclosed in GB 1 ,372,034 to Dijk and Berg, published October 30, 1974. See also lipases in Japanese Patent Application 53-20487 to Inugai, published February 24, 1978. This lipase is available from Amano Pharmaceutical Co., Ltd. of Nagoya, Japan, under the trade name Lipase P "Amano,” or "Amano-P.”
  • Other suitable commercial lipases include Amano-CES, lipases ex Chromobacter viscosum, e.g. Chromobacter viscosum var.
  • LIPOLASE® from Novo is a preferred lipase for use herein.
  • LIPOLASE® is derived from Humicola lanuginosa, see also EP 341 ,947 to Comelissen, et al., issued August 31 , 1994.
  • Lipase and amylase variants stabilized against peroxidase enzymes are described in WO 94/14951 to Halkier, et al., published July 7, 1994 A to Novo. See also WO 92/05249 to Clausen, et al., published April 2, 1992.
  • Peroxidase enzymes may be used in combination with oxygen sources, e.g., percarbonate, perborate, hydrogen peroxide, etc., for "solution bleaching" or prevention of transfer of dyes or pigments removed from substrates during the wash to other substrates present in the wash solution.
  • oxygen sources e.g., percarbonate, perborate, hydrogen peroxide, etc.
  • Known peroxidases include horseradish peroxidase, ligninase, and haloperoxidases such as chloro- or bromo-peroxidase.
  • Peroxidase-containing detergent compositions are disclosed in WO 89/09813 A to Damhus, et al., published October 19, 1989.
  • a suitable example of a protease is a subtilisin, which is obtained from particular strains of B. subtilis and B. licheniformis.
  • One suitable protease is obtained from a strain of Bacillus, having maximum activity throughout the pH range of 8-12, developed and sold as ESPERASE® by Novo.
  • Other examples of a suitable protease includes ALCALASE® and SAVINASE® from Novo and MAXATASE® from International Bio-Synthetics, Inc., the Netherlands; as well as Protease A and Protease B as disclosed in EP 130,756 A to Bott, published January 9, 1985.
  • An especially preferred protease referred to as "Protease D," as described in U.S. Patent 5,679,630 to A.
  • enzymes are typically available as an enzyme prill, an enzyme marume, a high-shear granule, or even an already-coated granule. Any of these enzyme forms may be coated by the improved encapsulation coating described herein.
  • a preferred embodiment comprises an enzyme prill which contains an enzyme.
  • Preferred examples of commercially- available enzymes useful herein include SAVINASE®, sold by Novo Corporation, Maxacal sold by Gist-brocades, Opticlean sold by Solvay-lnterox, Co, and Enzoguard sold by Genencor.
  • the detergent composition may optionally contain a fabric softener therein, preferably a fabric softening clay, a secondary fabric softener component, and a mixture thereof.
  • the fabric softening clay is preferably a smectite-type clay.
  • the smectite-type clays can be described as expandable, three-layer clays; i.e., alumino-silicates and magnesium silicates, having an ion exchange capacity of at least about 50 meq/100 g of clay.
  • the clay particles are of a size that they can not be perceived tactilely, so as not to have a gritty feel on the treated fabric of the clothes.
  • the fabric softening clay may be added at levels of from about 1 % to about 50%, preferably from about 2% to about 20%, and more preferably about 3% to 14%.
  • a secondary fabric softener component in addition to the fabric softening clay may be present at levels of about 0.1 % to 5%, more preferably from 0.3% to 3%, and include: amines of the formula R4R5R6N, wherein R4 is C5 to C22 hydrocarbyl, R5 and R6 are independently C1 to C10 hydrocarbyl.
  • One preferred amine is ditallowmethyl amine; complexes of such amines with fatty acid of the formula R7COOH, wherein R7 is Cg to C22 hydrocarbyl, as disclosed in EP Pub. No.
  • Clay softeners in combination with amine and cationic softeners are disclosed, for example, in U.S. Patent 4,375,416 to Crisp et al., March 1 , 1983 and U.S. Patent 4,291 ,071 to Harris et al., issued September 22, 1981.
  • adjunct materials useful in the detergent composition herein includes other active ingredients such as carriers, processing aids, suds suppressers, suds boosters, dyes, pigments, perfumes, perfume derivatives, dye transfer inhibitors, optical brighteners, clay soil removal agents, dispersants, alkalinity sources and pH buffers, soil suspension polymers, anti-redeposition polymers, etc. Additional detergent formulations useful herein are described in WO 91/08281 to Foster and Vandepas, published June 13, 1991 ; U.S. 5,487,818 to Cavalllotti, et al., issued January 30,1996; U.S. 5,470,988 to Jaekel, issued November 28, 1995; U.S.
  • the typical solvent useful herein to predissolve the detergent composition will be water, such as tap water, wash water, or water from other sources. However, other solvents may also be useful herein, as desired, such as alcohol, water, and mixtures thereof.
  • Another optional feature is a pressure-release mechanism which allows any pressure built-up inside of the housing, e.g., from an oxygen bleach, to slowly equalize with the ambient pressure.
  • a detergent composition and a predetermined amount of a solvent are placed in the container, they form a fluid having a viscosity of less than about 500 centipoise (cP), preferably less than about 250 cP, as measured at about 21 °C, by means of a Brookfield Viscometer at a shear rate of 1.0 rpm.
  • cP centipoise
  • Centipoise is the cgs-metric system unit of viscosity and has the dimensions of dyne-seconds per square centimeter or grams per centimeter-second.
  • the dispensing passage size and/or aperture size is coordinated to this viscosity such that when no manual pressure is exerted on the container, and the container is in a dispensing orientation, the fluid flow rate through the passage is a rate from about 0 mL/min to about 300 mL/min, preferably from about 0 ml/min to less than about 100 mL/min, and more preferably from about 0 mL/min to less than about 25 mL/min.
  • the container and/or housing is formed of a resilient material, manual pressure exerted upon the container and/or housing may cause the flow rate to increase beyond 300 mL/min.
  • Another preferred optional feature is at least one level indicator which informs the user as to how much detergent, and/or solvent should be added to the container.
  • the level indicator is molded onto the housing during the production process.
  • the container has more than one level indicator, preferably more than two level indicators.
  • the container has a set of level indicators for treating normally-soiled items, and a separate set of level indicators for treating heavily-soiled items. The level indicators may also serve the dual purpose of acting as a frictional surface.
  • the level indicators may serve as a set of usage instructions for using the container, and/or the detergent composition and solvent in combination.
  • a highly preferred embodiment of the container herein contains usage instructions, either actually on the container, or otherwise provided with the container, e.g., as part of a kit.
  • the level indicator(s), usage instructions, etc. are printed, silk-screened, etched, molded into, or otherwise attached to the container, via, for example, a sticker, or label. Examples of the invention are set forth hereinafter by way of illustration and are not intended to be in any way limiting of the invention, as many variations thereof are possible without departing from the spirit and scope of the invention.
  • the housing is a cylindrical housing having a circular cross-section, which is formed of an injection-molded translucent polypropylene and has a plurality of frictional surfaces on the outside thereof.
  • the housing is transparent such that the user can easily and quickly judge the level of detergent and solvent therein.
  • the housing is about 0.8 mm thick, and is slightly resilient so as to allow a user to increase the flow rate of detergent and solvent through the aperture, by squeezing the container housing during use. This flow control method is easy and intuitive for the user.
  • the housing has a cap member attached thereto.
  • the housing is about 65 mm in diameter where it meets the cap member, and tapers to about 55 mm at the base of the housing.
  • This tapered cylindrical housing has a circular cross-section throughout, and is inexpensive to fabricate.
  • the housing readily maintains a round shape and easily join with the cap member to form a water-tight seal.
  • the housing contains a plurality of level indicators to indicate the amount of detergent composition and solvent to be added thereto.
  • the cap member is formed of opaque high density polyethylene which is slightly softer than the polypropylene of the rest of the housing.
  • the housing and the cap member join together with a screw-type closure and contain an inner plug seal.
  • the combination of this softer cap member and a harder housing allows the formation of a water-tight seal without additional rubber or formed plastic gaskets, or expensive closures, such as those which require very close manufacturing tolerances in order to prevent leaking.
  • a round brush and a flow restriction portion are formed as a single piece of high density polyethylene blended with low density polyethylene, which is permanently fastened to the distal end of the cap member.
  • the flow restriction portion contains a single round aperture of about 2.8 mm in diameter in the center of the brush (and therefore an aperture area of about 6.1 mm 2 ).
  • the neck portion is curved, and aligns the aperture at an aperture angle of about 135 degrees.
  • Adjacent to the brush on the exterior of the cap member is a notch which allows a user to easily remove the aperture cover, discussed below.
  • the cap member has a plurality of frictional surfaces on the exterior thereof, to allow a user to easily seal and unseal the cap member and the housing.
  • a round aperture cover formed of translucent polypropylene covers the aperture and brush.
  • the aperture cover contains an aperture plug which extends through the aperture, and about 1 mm past the interior aperture edge into the distal end of the cap member. The aperture plug and the aperture form a watertight seal, as does the aperture cover and the cap member.
  • the aperture cover has a plurality of frictional surfaces which allow a user to easily grip the aperture cover and remove it from the cap member.
  • the container does not contain a filter.
  • EXAMPLE 2 About 25 g of the granular detergent compositions below are added to a container as described in Example 1 , along with about 60 mL tap water. The detergent and water are vigorously shaken for 1 minute, and used to pre-treat specific areas of a fabric before launderin in a re ular laundering cycle.
  • MA/AA (1) Copolymer of 1 :4 maleic/acrylic acid, average molecular weight about
  • DTPMP ( ) Diethylene triamine penta (methylene phosphonate), marketed by
  • SKS-6 (6) sodium crystalline layered silicate marketed by Hoechst
  • EXAMPLE 3 About 25 g of the granular detergent compositions below are added to a container as described in Example 1 , along with about 160 mL tap water. The detergent and water are vigorously shaken for 1 minute, and used to pre-treat s ecific areas of a fabric before launderin in a re ular launderin c cle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Detergent Compositions (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne un récipient portatif (10) qui permet la prédissolution d'une composition (14). Ce récipient comprend un corps (12) et un couvercle d'ouverture (26). Le corps (12) contient une quantité prédéfinie d'une composition détergente et d'un solvant et comprend un passage de distribution (18). Le passage de distribution (18) présente une extrémité distale (20) et une partie de réduction de débit à l'extrémité distale (20). La partie de réduction de débit comporte au moins une ouverture (24). Le couvercle d'ouverture (26) comprend un obturateur d'ouverture (28) correspondant à chaque ouverture (24). Lorsque le couvercle d'ouverture (26) recouvre l'extrémité distale (20), chaque obturateur d'ouverture (28) traverse sensiblement une ouverture (24).
EP99949808A 1999-09-22 1999-09-22 Recipient portatif pour liquides Withdrawn EP1248736A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1999/022057 WO2001021499A1 (fr) 1999-09-22 1999-09-22 Recipient portatif pour liquides

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EP1248736A1 true EP1248736A1 (fr) 2002-10-16

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EP (1) EP1248736A1 (fr)
JP (1) JP2003509307A (fr)
CN (1) CN1398235A (fr)
AU (1) AU6260299A (fr)
BR (1) BR9917498A (fr)
CA (1) CA2383228A1 (fr)
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WO2001021499A1 (fr) 2001-03-29
CA2383228A1 (fr) 2001-03-29
AU6260299A (en) 2001-04-24
CN1398235A (zh) 2003-02-19
JP2003509307A (ja) 2003-03-11
BR9917498A (pt) 2002-05-21

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