Consumer Products
The consumer product with a locking mechanism and paper-based inner surface effectively prevents perfume buildup in the container headspace, ensuring consumers can assess perfume strength upon opening.
Patent Information
- Application Number
- JP2023179436
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-08-06
- Filing Date
- 2023-10-18
- Publication Date
- 2025-09-03
- Estimated Expiration
- 2040-08-11
AI Technical Summary
Water-soluble unit dose articles with perfumed detergent compositions experience perfume migration during transportation and storage, leading to strong perfume buildup in the container headspace, which is undesirable for consumers who prefer minimal perfume application.
A consumer product design featuring a container with a locking mechanism that keeps the container closed until use, using a paper-based material for the inner surface to contact the water-soluble film, preventing perfume accumulation while allowing consumers to judge perfume strength by the headspace when opened.
Prevents strong perfume buildup in the container headspace during storage, providing consumers with a reliable indication of perfume strength when the container is opened.
Smart Images

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Abstract
Description
[Technical Field]
[0001] A consumer product comprising a container and at least one water-soluble unit dose article. [Background technology]
[0002] Water-soluble unit dose articles are popular with consumers for their convenience and ease of use. Without wishing to be bound by theory, the water-soluble unit dose article comprises a water-soluble film shaped to form at least one internal compartment that contains a single-use dose of detergent. Upon addition of the water-soluble unit dose article to water, the water-soluble film dissolves and / or decomposes, releasing the detergent into the surrounding water to form a cleaning solution.
[0003] Such water-soluble unit dose articles are stored and shipped in rigid or flexible plastic containers. Without wishing to be bound by theory, consumers purchase containers containing a plurality of water-soluble unit dose articles. The containers are shipped from the manufacturing site to supermarkets and, once purchased, are stored in the consumer's home.
[0004] The detergent composition enclosed in the water-soluble unit dose article typically contains perfume.The problem is that during transportation and storage, perfume partially migrates from the detergent composition through the water-soluble film and begins to accumulate in the headspace of the container.However, some consumers do not like strong perfumes to be applied to their clothes, for example, they simply want a minimal perfume application as a sign that their clothes are clean and refreshed, but do not want to experience an "overpowering" perfume.For some consumers, the strong perfume headspace that accumulates in the tub is undesirable because it is perceived as a signal that strong perfume is also applied to their clothes during washing.Even when formulating a "light" perfume that targets this consumer segment, the perfume accumulation in the headspace experience still needs to be improved.
[0005] A possible solution may be that consumers store the container in an open position, so that perfume headspace cannot accumulate.However, this is undesirable because it increases the sensitivity of the water-soluble unit-dose article to external humidity conditions and the risk of accidentally contaminating the water-soluble unit-dose article.More importantly, although leaving the container open reduces the risk of strong perfume accumulating in the storage container, this approach does not provide consumers with a reassuring signal that the detergent composition does not contain strong perfume.Consumers will not know that there is no perfume headspace, which allows them to judge whether the blended perfume meets their needs based on this.Therefore, consumers prefer to have a latch that ensures that such a container remains closed until it is intentionally opened, so that perfume headspace accumulates, and consumers can judge the perfume strength based on the perfume accumulation in the headspace. Summary of the Invention [Problem to be solved by the invention]
[0006] Therefore, a need exists for consumer products, including water-soluble unit dose articles containing perfumed detergent compositions, that avoid strong perfume buildup in the headspace while stored in a closed position.
[0007] Surprisingly, it has been found that the consumer product according to the present invention overcomes the above problems. [Means for solving the problem]
[0008] A consumer product comprising at least one water-soluble unit dose article and a container, wherein the at least one water-soluble unit dose article comprises at least one water-soluble film oriented to create at least one unit dose interior compartment, the at least one unit dose interior compartment comprising a detergent composition, the container comprising a first portion, the first portion comprising a first compartment in which the at least one water-soluble unit dose article is contained, the first compartment being accessible through a first opening, and the container comprising a second portion, the second portion positioned to prevent access through the first opening when the container is not in use but to allow access to the first opening when the container is in use. the container comprises a locking means, the locking means comprising a first locking component on the first portion and a second locking component on the second portion, the first locking component engaging with the second locking component to prevent movement of the second locking component allowing access to the first opening until the first locking component and the second locking component are disengaged from each other by a user; the first portion comprises an inner surface and an outer surface, the inner surface facing the interior compartment, at least a portion of the inner surface of the first portion constructed from a paper-based material such that the water-soluble film of the at least one unit dose article directly contacts the paper-based material of the inner surface; and the detergent composition comprises a free perfume composition. [Brief explanation of the drawings]
[0009] [Figure 1] A consumer product (1) according to the present invention is shown, comprising at least one water-soluble unit dose article (not shown) and a container (2). [Figure 2A] 2 shows a cross-sectional view of the container (2) of FIG. 1. [Figure 2B] 2 shows a cross-sectional view of the container (2) of FIG. 1. [Figure 2C] 2 shows a cross-sectional view of the container (2) of FIG. 1. [Figure 3] 1 shows a consumer product (1) according to FIG. 1, in which a second part (4) is connected to a first part (3) via a hinge (21). [Figure 4] 10 illustrates an alternative example according to the present disclosure. [Figure 5] 5 shows the container according to FIG. 4 in the open position. [Figure 6] 4 and 5, shown completely removed from the second part (4). [Figure 7] The first part (3) according to FIG. 5 is shown with a larger first opening (6). [Figure 8] 5 shows a top cross-sectional view of the second part (4) according to FIG. [Figure 9] 3D representation of the second part (4) according to FIG. [Figure 10A] 5 shows a cross-sectional view of the consumer product (1) according to FIG. [Figure 10B] 5 shows a cross-sectional view of the consumer product (1) according to FIG. [Figure 11] 4 to 9, 10A and 10B show the consumer product (1) with the second locking component (8) in different locations. [Figure 12] A water-soluble unit dose article according to the present invention is disclosed. DETAILED DESCRIPTION OF THE INVENTION
[0010] consumer products The present invention relates to a consumer product comprising at least one water-soluble unit dose article and a container. The water-soluble unit dose article and the container are described in more detail below.
[0011] A consumer product may be sold "as is," i.e., the consumer product is the item that a consumer picks up from a shelf. Alternatively, a consumer product may be packaged as a unit of a multi-component product. For example, two or more consumer products may be packaged within an outer package, with the multiple packaged consumer products sold together in a single purchase.
[0012] The consumer product may include an aesthetic element, such as a shrink sleeve or a label affixed to the container, or the container may be colored or printed with aesthetic elements or informational printed material (e.g., instructions for use).
[0013] Water-soluble unit dose article The at least one water-soluble unit dose article comprises at least one water-soluble film oriented to create at least one unit dose interior compartment, the at least one unit dose interior compartment comprising a detergent composition, the water-soluble film and the detergent composition being described in more detail below.
[0014] The consumer product comprises at least one water-soluble unit dose article, preferably at least two water-soluble unit dose articles.
[0015] The water-soluble unit dose article is generally in the form of a pouch. The water-soluble unit dose article contains a unit dose of the composition in a volume sufficient to provide a benefit in the end use.
[0016] The water-soluble unit dose article comprises at least one water-soluble film shaped such that the unit dose article comprises at least one internal compartment surrounded by the water-soluble film. The at least one compartment contains a detergent composition. The water-soluble film is sealed to prevent leakage of the detergent composition from the compartment during storage. However, when the water-soluble unit dose article is added to water, the water-soluble film dissolves, releasing the contents of the internal compartment into the wash liquor.
[0017] The unit dose article may include more than one compartment, or even at least two compartments, or even at least three compartments, or even at least four compartments, or even at least five compartments. The compartments may be arranged in a nesting orientation, i.e., one on top of the other. Alternatively, the compartments may be in a side-by-side orientation, i.e., one adjacent to the other. The compartments may even be oriented in a "tire and rim" configuration, i.e., a first compartment is adjacent to a second compartment, but the first compartment at least partially surrounds but does not completely enclose the second compartment. Alternatively, one compartment may be completely enclosed within another compartment.
[0018] When the unit dose article contains at least two compartments, one of the compartments may be smaller than the other compartments. When the unit dose article contains at least three compartments, two of the compartments may be smaller than the third compartment, preferably with the smaller compartment stacked on top of the larger compartment. The stacked compartments are preferably oriented side-by-side.
[0019] Each individual unit dose article may have a weight of from 10g to 40g, or even from 15g to 35g.
[0020] The films of the present invention are water-soluble or water-dispersible. Before the unit dose article is made, the water-soluble film preferably has a thickness of 20 to 150 microns, preferably 35 to 125 microns, even more preferably 50 to 110 microns, and most preferably about 76 microns.
[0021] The preferred film material is preferably a polymeric material and can be obtained by methods known in the art, for example by casting, blow molding, extrusion or blow extrusion of polymeric materials.
[0022] Preferably, the water-soluble film comprises a polyvinyl alcohol polymer or copolymer, preferably a blend of polyvinyl alcohol polymers and / or polyvinyl alcohol copolymers, preferably selected from sulfonated and carboxylated anionic polyvinyl alcohol copolymers, especially carboxylated anionic polyvinyl alcohol copolymers, and most preferably a blend of polyvinyl alcohol homopolymer and carboxylated anionic polyvinyl alcohol copolymer.
[0023] Preferably, the water-soluble film comprises a polymer, the polymer being a homopolymer, copolymer or mixture thereof selected from polyvinyl alcohol, polyvinylpyrrolidone, polyalkylene oxide, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetate, polycarboxylic acids and salts, polyamino acids or peptides, polyamides, polyacrylamides, maleic acid / acrylic acid copolymers, starch and gelatin, polysaccharides including xanthum, carragum, or mixtures thereof, preferably a polyvinyl alcohol homopolymer and / or an anionic polyvinyl alcohol copolymer, preferably selected from sulfonated and carboxylated anionic polyvinyl alcohol copolymers, in particular a carboxylated anionic polyvinyl alcohol copolymer.
[0024] Preferred films include those supplied by Monosol under product reference numbers M8630, M8900, M8779, M8310.
[0025] The film may be opaque, transparent or translucent. The film may include printed areas.
[0026] The printed areas can be obtained using standard techniques such as flexographic printing or inkjet printing.
[0027] The film may also include an aversive agent, such as a bittering agent. Suitable bittering agents include, but are not limited to, naringin, sucrose octaacetate, quinine hydrochloride, denatonium benzoate, or mixtures thereof. Any suitable concentration of the aversive agent may be used in the film. Suitable concentrations include, but are not limited to, 1 to 5000 ppm, or even 100 to 2500 ppm, or even 250 to 2000 ppm.
[0028] The water-soluble film or the water-soluble unit dose article, or both, may be coated with a lubricant. Preferably, the lubricant is selected from talc, zinc oxide, silica, siloxane, zeolite, silicic acid, alumina, sodium sulfate, potassium sulfate, calcium carbonate, magnesium carbonate, sodium citrate, sodium tripolyphosphate, potassium citrate, potassium tripolyphosphate, calcium stearate, zinc stearate, magnesium stearate, starch, modified starch, clay, kaolin, gypsum, cyclodextrin, or mixtures thereof.
[0029] container The consumer product includes a container. The container includes a first portion, the first portion including a first compartment containing at least one water-soluble unit dose article. Preferably, the first compartment includes at least two water-soluble unit dose articles. The first compartment may include 1 to 80 water-soluble unit dose articles, or even 1 to 60 water-soluble unit dose articles, or even 1 to 40 water-soluble unit dose articles, or even 1 to 20 water-soluble unit dose articles. The volume of the first compartment may be 500 ml to 5000 ml, preferably 800 ml to 4000 ml.
[0030] The first compartment is accessible through the first opening. Those skilled in the art will recognize the appropriate size of the first opening. Without wishing to be bound by theory, the first opening should be large enough to dispense at least one water-soluble unit dose article at a time. Alternatively, the first opening may be shaped to allow the unit dose article to be poured out of the container. Therefore, it should be sized large enough to allow at least one unit dose article to pass through the first opening. Preferably, the first opening should be large enough to allow a user to insert their hand and dispense at least one water-soluble unit dose article.
[0031] The container includes a second portion positioned to prevent access through the first opening when the container is not in use, but movable to allow access to the first opening when the container is in use. Without wishing to be bound by theory, the first and second portions are movable relative to one another. This relative movement enables the second portion to block access to the first opening when the container is not in use, while allowing access to the first opening when the container is in use. Without wishing to be bound by theory, a user controls the movement of the first and second portions relative to one another to achieve this.
[0032] Movement of the first and second portions relative to each other can be achieved via any suitable means. Those skilled in the art will recognize suitable means. The first portion can slide within the second portion. Alternatively, the second portion can function as a lid for the first portion. The lid can be hinged to the first portion or completely separate from the first portion. Preferably, the second portion comprises a top wall and at least one side wall, and the first portion comprises a base wall and a first opening, the first opening being opposite the base wall and connected by at least one side wall. In the closed position, at least one side wall of the second portion at least partially overlaps one side wall of the first portion. In other words, the second portion functions as a cover over the first portion, thereby blocking access to the first opening. Alternatively, in the closed position, at least one side wall of the first part at least partially overlaps one side wall of the second part, in other words, the second part is inserted into the first opening and blocks access to the first opening.
[0033] The container further comprises a locking means. The locking means comprises a first locking component on the first portion and a second locking component on the second portion. The first locking component engages with the second locking component to prevent movement of the second portion relative to the first portion sufficient to allow access to the first opening until the first and second locking components are disengaged from each other by a user. Those skilled in the art will recognize suitable locking means for achieving this. A preferred locking means is one in which the first locking component comprises a tab and the second locking component comprises an abutment against which the tab abuts when in the closed position. The abutment may simply comprise a surface against which the tab abuts. Alternatively, the abutment comprises a slot or pocket that can receive the tab when in the locked position. Preferably, the first locking component is a tab protruding from the outer surface of the first portion, and the second portion comprises an abutment against which the first locking tab can releasably engage.
[0034] The container may include two or more locking means. The container may include two locking means. The locking means may be oriented opposite one another on the container so that a consumer can hold the container and use their thumb and fingers to simultaneously open both locking means. Preferably, when the locking means are opposite one another, the container is appropriately sized to allow a user, particularly an adult user, to grasp the container with one hand and simultaneously open both locking means using the thumb and fingers of the other hand. When the container includes at least two locking means, the two locking means are preferably spaced apart by a distance of 70 mm to 150 mm, more preferably 80 mm to 120 mm. Without wishing to be bound by theory, such a distance allows the length of an adult's thumb to little finger width to fit ergonomically around the container, allowing simultaneous disengagement of the two locking means.
[0035] Preferably, both locking means comprise a first locking component on the first portion and a second locking component on the second portion. Preferably, both the first locking means and the second locking means comprise tabs on the first portion and on the abutments of the second portion.
[0036] The first portion has an inner surface and an outer surface, and the inner surface faces the internal compartment. At least a portion of the inner surface of the first portion is constructed from a paper-based material, such that the water-soluble film of the at least one unit dose article directly contacts the paper-based material on the inner surface. In other words, at least one water-soluble unit dose article contained in the container will be in direct contact with the paper-based material. During storage and transportation, the water-soluble unit dose article may move within the container, but there is no imposition between the water-soluble unit dose article and the paper-based material, except for other water-soluble unit dose articles.
[0037] Paper-based material, as used herein, refers to a material that includes paper. Without wishing to be bound by theory, "paper" as used herein refers to a material made from cellulosic pulp. Preferably, the paper-based material includes paper, cardboard, or a mixture thereof, and preferably, cardboard includes paperboard, corrugated board, or a mixture thereof. The paper-based material may include a printed image thereon.
[0038] Preferably, the entire inner surface of the first portion is constructed from a paper-based material, and more preferably, the entire first portion is constructed from a paper-based material.
[0039] Preferably, the second portion comprises an inner surface and an outer surface. Preferably, at least a portion of the inner surface of the second portion is constructed from a paper-based material, preferably the entire inner surface of the second portion is constructed from a paper-based material, and even more preferably, the entire second portion is constructed from a paper-based material.
[0040] Preferably, the first locking component is constructed from a paper-based material or the second locking component is constructed of a paper-based material, or a combination thereof.
[0041] The paper-based material may be a laminate containing paper, cardboard, or a mixture thereof; preferably, the cardboard contains paperboard, corrugated board, or a mixture thereof, and at least a second material. When the paper-based material is a laminate, the inner surface of the first portion and preferably the inner surface of the second portion contain paper, cardboard, or a mixture thereof; preferably, the cardboard contains paperboard, corrugated board, or a mixture thereof; and preferably, the outer surface of the first portion, the outer surface of the second portion, or a mixture thereof, contains the second material. Alternatively, the second material may also be laminated between two layers of paper-based material. Without wishing to be bound by theory, this second material may act as a barrier to any leaked liquid absorbed by the paper-based material facing the inside of the container from flowing through the container wall and contaminating the outer wall of the container. Contamination of the outer wall of the container may be unsightly to consumers, or, even worse, may further contaminate the storage area. Surprisingly, it was found that despite the lamination including a second material that acts as a barrier to leaked liquid absorbed by the paper-based material, there was still avoidance of perfume headspace buildup compared to a purely plastic-based container.
[0042] The first locking component may be a tab made of cardboard. Without wishing to be bound by theory, the cardboard comprises a series of grooves. Each groove can be understood to be a channel. The grooves run parallel to one another, with the groove direction being the direction of travel along each channel. Preferably, the tab comprises a fold extending perpendicular to the groove direction. Such folding of the tab allows the tab to return to its original position, or in other words, has a memory characteristic that allows it to spring back. This is preferably to allow for efficient re-engagement with the second locking component upon subsequent use.
[0043] Alternatively, the first locking component may be a tab made from paperboard. Without wishing to be bound by theory, it should be understood that paperboard includes fibers extending in a grain direction, which is the direction along the longest dimension of the fibers. Preferably, the tab includes a fold extending perpendicular to the grain direction. Such folding of the tab allows the tab to return to its original position, or in other words, has a memory characteristic that allows it to spring back. This is preferably to allow for efficient re-engagement with the second locking component upon subsequent use.
[0044] Those skilled in the art will recognize suitable second materials. Preferably, the second material comprises a plastic material. Preferably, the plastic material comprises polyethylene, polyethylene terephthalate, polypropylene, polyvinyl alcohol, or a mixture thereof. The barrier material may be biaxially oriented polypropylene, metallized polyethylene terephthalate, or a mixture thereof. Alternatively, the second material may be a wax, a cellulose material, polyvinyl alcohol, or a mixture thereof.
[0045] Preferably, the paper-based laminate comprises more than 50% by weight, preferably more than 85% by weight, more preferably more than 95% by weight of the laminate of fiber-based material. Preferably, the plastic material has a thickness of 10 microns to 40 microns, more preferably 10 microns to 35 microns.
[0046] Preferably, the second part is a sleeve that receives the first part therein, and the first part is slidable within the second part between an open position, in which the first opening is accessible and the first and second locking components are disengaged from one another, and a closed position, in which the second part blocks access to the first opening when the first and second locking components are engaged.
[0047] Alternatively, preferably, the first part comprises a base wall and a first opening, the first opening being opposite the base wall and connected to the first opening by at least one side wall, and the second part comprises a second opening and at least one connecting wall, the first part sliding within the second opening through the second opening, the connecting wall blocking the first opening when in the closed position. In this preferred option, the at least one side wall of the first part comprises a first locking component, and the at least one connecting wall of the second part comprises a second locking component. Preferably, the second part comprises an end wall opposite the second opening, the second opening and the end wall being connected via the at least one connecting wall.
[0048] The connecting wall has an inner surface and an outer surface, the inner surface facing the first portion and the outer surface facing the environment outside the container.
[0049] The second locking component can be an abutment formed by cutting a portion of the connecting wall, folding the portion back onto itself, and then adhering the folded portion to the inner surface of the connecting wall to create the abutment. The cut portion of the connecting wall forms the opening for the second locking component. Alternatively, if the second locking component is an abutment, it may be formed by adhering a separate piece of material to the inner surface of the connecting wall, preferably the separate piece of material is selected from paper, cardboard, or a mixture thereof.
[0050] The container may include a stopper means for preventing the first portion from being completely removed from the second portion. Such a stopper means may include a stopper abutment on the second portion that interacts with the first locking component, preferably a tab, that prevents further movement of the first portion when pulled from the second portion during use. Without wishing to be bound by theory, once the first locking component disengages from the second locking component, the first and second portions can move relative to one another. During movement, the first locking component abuts the stopper abutment, preventing any further movement. Alternatively, the stopper means may include a stopper tab distinct from the first locking component that abuts the second locking means. In this case, without wishing to be bound by theory, after the first and second locking components disengage, the first and second portions can move relative to one another, and the stopper tab abuts the second locking means, preventing any further movement.
[0051] The stopper means may be formed by folding back an end of the connecting wall and gluing the folded back portion to the inner surface of the connecting wall. The end of the connecting wall should be understood to mean the edge of the connecting wall that forms the second opening. Alternatively, the stopper means may be formed by gluing a separate piece of material to the inner surface of the connecting wall, preferably the separate piece of material being selected from paper, cardboard or a mixture thereof.
[0052] Alternatively, the second part is a removable lid, and in the closed position the second part blocks access to the first opening, and when in the closed position the first locking component engages with the second locking component, and when in the open position the first locking component and the second locking component are disengaged and the second part is removable to allow access to the first opening. Preferably, the second part is attached to the first part via a hinge or the second part is completely detachable from the first part. Preferably, the second part is completely detachable from the first part.
[0053] Preferably, the second portion includes a top wall and at least one side wall, and the first portion includes a base wall and a first opening, the first opening being opposite the base wall, the base wall and the first opening being connected by the at least one side wall. In the closed position, the at least one side wall of the second portion at least partially overlaps within one side wall of the first portion. In this preferred example, a first locking component is positioned on the at least one side wall of the first portion, and a second locking component is positioned on the at least one side wall of the second portion.
[0054] At least one sidewall of the second portion has an inner surface and an outer surface, the inner surface facing the first portion and the outer surface facing the environment outside the container. Alternatively, in a less preferred option, in the closed position, at least one sidewall of the first portion at least partially overlaps one sidewall of the second portion.
[0055] The second locking component may be an abutment formed by cutting a portion of at least one side wall of the second part, folding the portion back on itself, and then adhering the folded portion to the inner surface of at least one side wall of the second part to create an abutment. The cut portion of at least one side wall of the second part forms an opening for the second locking component. Alternatively, if the second locking component is an abutment, it may be formed by adhering a separate piece of material to the inner surface of at least one side wall of the second part, preferably the separate piece of material is selected from paper, cardboard, or a mixture thereof. Alternatively, if the second locking component is an abutment, it may be formed by folding an end of at least one wall of the second part back on itself and then adhering the folded portion to the inner surface of at least one wall of the second part.
[0056] Detergent Composition The detergent composition may be a laundry cleaning composition, an automatic dishwashing composition, a hard surface cleaning composition, or a combination thereof. The detergent composition is a perfumed detergent composition. By "perfumed detergent composition" is meant that free perfume is added to the detergent composition. By "free perfume" herein is meant that the perfume compound is added directly to the detergent composition and is not present on a capsule or carrier material. The composition may also contain a secondary perfume source, such as perfume capsules and / or pro-perfumes, e.g., perfume bound to a carrier material technology. The detergent composition may comprise a solid, a liquid, or a mixture thereof. The term "liquid" includes a gel, a solution, a suspension, a paste, or a mixture thereof.
[0057] The solid may be a powder. As used herein, powder means that the detergent composition may contain solid particles or may be a single homogeneous solid. Preferably, the powder detergent composition contains particles. In this case, it means that the powder detergent composition contains individual solid particles, not that the solid is a single homogeneous solid. The particles may be free-flowing or compacted, preferably free-flowing.
[0058] Preferably the detergent composition is a laundry detergent composition, most preferably a liquid laundry detergent composition.
[0059] The laundry detergent composition may be used in hand fabric washing operations or in automatic fabric machine washing operations, preferably in automatic fabric machine washing operations.
[0060] The laundry detergent composition comprises a non-soap surfactant, which comprises an anionic non-soap surfactant and a non-ionic surfactant. Preferably, the laundry detergent composition comprises 10% to 60% by weight of the laundry detergent composition, more preferably 20% to 55% by weight of the non-soap surfactant.
[0061] The weight ratio of non-soap anionic surfactant to nonionic surfactant is from 1:1 to 20:1, preferably from 3:1 to 17.5:1, more preferably from 5:1 to 15:1, and most preferably from 7.5:1 to 12.5:1.
[0062] The non-soap anionic surfactant comprises a linear alkylbenzene sulfonate, an alkyl sulfate, or a mixture thereof, wherein the weight ratio of linear alkylbenzene sulfonate to alkyl sulfate is from 1:2 to 9:1, preferably from 1:1 to 7:1, more preferably from 1.25:1 to 5:1, and most preferably from 1.4:1 to 3:1.
[0063] Exemplary linear alkylbenzene sulfonates include C 10 ~C 16 Alkylbenzene sulfonic acid or C 11 ~C 14 Alkylbenzene sulfonic acid. By "linear" herein, it is meant that the alkyl group is straight-chained. Alkylbenzene sulfonates are well known in the art.
[0064] The alkyl sulfate anionic surfactant may comprise an alkoxylated alkyl sulfate, or a non-alkoxylated alkyl sulfate, or a mixture thereof. The alkoxylated alkyl sulfate anionic surfactant is preferably an ethoxylated alkyl sulfate anionic surfactant.
[0065] The alkyl sulfate anionic surfactant may comprise an ethoxylated alkyl sulfate anionic surfactant, preferably having a molar average degree of ethoxylation of 1-5, more preferably 1-3, and most preferably 2-3.
[0066] The alkyl sulfate anionic surfactant may include non-ethoxylated alkyl sulfates and ethoxylated alkyl sulfates, and the molar average degree of ethoxylation of the alkyl sulfate anionic surfactant is 1-5, more preferably 1-3, and most preferably 2-3.
[0067] The alkyl fraction of the alkyl sulfate anionic surfactant may preferably be derived from an aliphatic alcohol, an oxo-synthetic alcohol, a Guerbet alcohol, or mixtures thereof.
[0068] Preferably, the laundry detergent composition comprises from 10% to 50% non-soap anionic surfactant by weight of the laundry detergent composition, more preferably from 15% to 45%, even more preferably from 20% to 40%, and most preferably from 30% to 40%.
[0069] Preferably, the nonionic surfactant is selected from alcohol alkoxylates, oxosynthetic alcohol alkoxylates, Guerbet alcohol alkoxylates, alkylphenol alcohol alkoxylates, or mixtures thereof.
[0070] The laundry detergent composition comprises from 0.01% to 10%, preferably from 0.01% to 8%, more preferably from 0.1% to 6%, and most preferably from 0.15% to 5% by weight of the liquid laundry detergent composition of a nonionic surfactant.
[0071] Preferably, the laundry detergent composition comprises from 1.5% to 20%, more preferably from 2% to 15%, even more preferably from 3% to 10%, and most preferably from 4% to 8% by weight of the laundry detergent composition of a soap, preferably a fatty acid salt, more preferably an amine-neutralized fatty acid salt, preferably wherein the amine is selected from an alkanolamine, more preferably monoethanolamine, diethanolamine, triethanolamine, or mixtures thereof, more preferably monoethanolamine.
[0072] Preferably the laundry detergent composition is a liquid laundry detergent composition, more preferably the liquid laundry detergent composition comprises less than 15% water by weight of the liquid laundry detergent composition, more preferably less than 12% water.
[0073] Preferably, the laundry detergent composition is a liquid laundry detergent composition comprising a non-aqueous solvent selected from 1,2-propanediol, dipropylene glycol, tripropylene glycol, glycerol, sorbitol, polyethylene glycol, or mixtures thereof. Preferably, the liquid laundry detergent composition comprises from 10% to 40%, preferably from 15% to 30% by weight of the liquid laundry detergent composition of the non-aqueous solvent.
[0074] Laundry detergent compositions contain perfume, more specifically, free perfume. Those skilled in the art will be familiar with potential free perfumes that may be incorporated into liquid laundry detergent compositions formulated into water-soluble unit-dose articles. These free perfume compositions are composed of a wide range of individual perfume raw materials carefully balanced to create desired perfume characteristics, perfume deposition, and perfume longevity profiles throughout different stages of the washing and wearing process, such as when dispensing the detergent composition, removing wet clothes from the washing machine or hand-washing, line drying or at the end of the tumble drying process, storing the clothes in the consumer's closet, and wearing the clothes. This balanced selection of individual perfume materials typically takes into account the individual raw material's perfume characteristics as well as its polarity, volatility, and perceived intensity. The detergent composition preferably contains 0.01 to 10%, preferably 0.1 to 5%, and more preferably 0.5 to 3% free perfume. In addition to free perfume, a secondary source of perfume may also be present, more specifically, the detergent composition may also comprise encapsulated perfume or pro-perfume technology, or mixtures thereof. Preferably, the laundry detergent composition comprises adjunct ingredients selected from the group comprising enzymes, citrates, bleaches, bleach catalysts, dyes, hueing dyes, brighteners, cleaning polymers including alkoxylated polyamines and polyethyleneimines, soil release polymers, surfactants, solvents, dye transfer inhibitors, chelating agents, encapsulated perfume, polycarboxylates, structuring agents, pH adjusters, and builders including mixtures thereof.
[0075] Preferably, the laundry detergent composition has a pH of 6 to 10, more preferably 6.5 to 8.9, most preferably 7 to 8, the pH of the laundry detergent composition being measured as a 10% product concentration in demineralized water at 20°C.
[0076] When liquid, the laundry detergent composition may be Newtonian or non-Newtonian. Preferably, the liquid laundry detergent composition is non-Newtonian. Without wishing to be bound by theory, non-Newtonian liquids have different properties from Newtonian liquids; more specifically, the viscosity of non-Newtonian liquids is independent of shear rate, while Newtonian liquids have a constant viscosity regardless of the shear rate at which they are applied. It is believed that the decrease in viscosity of non-Newtonian liquids upon shear application further facilitates dissolution of the liquid detergent. The laundry detergent compositions described herein may have any suitable viscosity, depending on factors such as the formulated ingredients and the purpose of the composition.
[0077] Those skilled in the art will know how to formulate and prepare suitable detergent compositions using known knowledge and techniques.
[0078] Manufacturer Those skilled in the art will recognize standard techniques and methods for making consumer products according to the present invention. Those skilled in the art will recognize methods for making at least one water-soluble unit dose article. Those skilled in the art will recognize standard methods for making containers. Preferably, the first part is constructed from a first blank and the second part is constructed from a second blank.
[0079] Dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm." [Example]
[0080] The following are non-limiting examples according to the present invention.
[0081] FIG. 1 shows a consumer product (1) including at least one water-soluble unit dose article (not shown) and a container (2). The container (2) includes a first portion (3) and a second portion (4). The second portion (4) is a removable lid in this example. In FIG. 1, the container (2) is shown in an open position. The first portion (3) includes a first compartment (5) that contains at least one water-soluble unit dose article (not shown), and the first compartment (5) is accessible through a first opening (6). The first portion (3) includes a first locking component (7), and the second portion (4) includes a second locking component (8). In FIG. 1, the first locking component (7) is a tab made of paperboard, corrugated board, or a mixture thereof. The second locking component (8) includes an abutment (10), shown in dotted lines, that is disposed on the inner surface of at least one wall (9) of the second portion (4). The abutment (10) is created by folding back an end of at least one side wall (9) and adhering the folded portion to the inner surface of at least one wall (9). The second locking component (8) also includes an opening (11) that allows user access to disengage the first locking component (7) from the second locking component (8). The first portion (3) includes an inner surface (12) and an outer surface (13). At least a portion of the inner surface (12) is constructed from a paper-based material. The container (2) in this example includes two first locking components (7) on either side of the first portion (3) and two corresponding second locking components (8) on either side of the second portion (4).
[0082] 2A, 2B, and 2C show cross-sectional views of the container (2) of FIG. 1. In FIG. 2A, the first locking component (7) engages with the abutment (10) of the second locking component (8). The abutment (10) is formed by folding the bottom edge of the first wall (9) back over itself and adhering the folded portion to the inner surface of at least the first wall of the second portion (9). In FIG. 2A, a user disengages the first locking component (7) from the abutment (10) via application of force (14) through the opening (11). As shown in FIG. 2B, application of force (14) displaces the first locking component (7), allowing the user to move (15) the second portion (4) away from the first portion (3), as shown in FIG. 2C.
[0083] Figure 3 shows the consumer product (1) according to Figure 1, but with the second part (4) connected to the first part (3) via a hinge (21).
[0084] Figure 4 shows an alternative embodiment according to the present disclosure. Shown is a consumer product (1) including a container (2) and at least one water-soluble unit dose article (not shown). The container comprises a first portion (3) and a second portion (4). Also shown is an opening (11) for a user to disengage the first locking component (not shown) from the second locking component (not shown). The container further comprises a notch (16) that allows for easy grasping of the first portion (3) as it is pulled from the second portion (4).
[0085] Figure 5 shows the container according to Figure 4 in an open position, where the first part (3) has been pulled out from the second part (4). The first part (3) comprises a first compartment (5) containing at least one water-soluble unit dose article (not shown), the first compartment (5) being accessible through a first opening (6). The first part (3) comprises an inner surface (12) and an outer surface (13). At least a portion of the inner surface (12) is composed of a paper-based material.
[0086] Figure 6 shows the first part (3) of Figures 4 and 5 completely removed from the second part (4). As can be seen in Figure 6, the first part comprises two first locking components (7), one on each side. In Figure 5, the first locking components (7) are tabs made from paperboard, corrugated board, or a mixture thereof. The first part (3) further comprises stop means (17) on the top and bottom to prevent the first part (3) from being completely pulled out of the second part (4).
[0087] Figure 7 shows the first part (3) according to Figure 5, but with a larger first opening (6).
[0088] Figure 8 shows a top cross-sectional view of the second part (4) according to Figure 4. The second part (4) includes an opening (20) through which the first part (3) can pass. Also shown is an abutment (10) that the first locking component (7) engages when in the locked position. The abutment (10) is formed by cutting a portion of the connecting wall (18), folding the portion back on itself, and then gluing the folded portion to the inner surface of the connecting wall (18) to create the abutment (10). Also shown is a stopper means abutment (19) that folds an end of the connecting wall (18) back on itself and glues the folded portion to the inner surface of the connecting wall (19).
[0089] Figure 9 shows a 3D representation of the second part (4) according to Figure 4. Four connecting walls (21, 22, 23, 24) are shown. The stopper means abutment (19) is formed by folding the end of each of the four connecting walls back onto itself and gluing the folded portion to the inner surface of the respective connecting wall (21, 22, 23, 24).
[0090] 10A and 10B show cross-sectional views of the consumer product (1) according to FIG. 4. In FIG. 10A, the first locking component (7) is engaged with an abutment (10). The abutment (10) is formed by cutting a portion of the connecting wall (18), folding the portion back onto itself, and then adhering the folded portion to the inner surface of the connecting wall (18) to create the abutment (10). The resulting hole forms the opening (11). In FIG. 2A, the user disengages the first locking component (7) from the abutment (10) via application of force (14) through the opening (11). As shown in FIG. 2B, application of force (14) displaces the first locking component (7), allowing the user to move (15) the second part (4) away from the first part (3) until the first locking component (7) abuts against the stop abutment (19) and prevents further movement. Figure 10B shows the consumer product (1) in the open position.
[0091] Figure 11 shows the consumer product (1) according to Figures 4-9, 10A, and 10B, but with the second locking component (8) in a different location, i.e., on the same side as the first opening (6). The first locking component (7) and the second locking component (8) interact in the same way as shown in Figure 10. Two openings (11) corresponding to two separate second locking components (8) are shown.
[0092] Figure 12 discloses a water-soluble unit dose article according to the present invention. The water-soluble unit dose article (3) comprises a first water-soluble film (301) and a second water-soluble film (302), which are sealed together at a sealing area (303). A detergent composition, preferably a laundry detergent composition (304), is contained within the water-soluble unit dose article (3).
[0093] Example 1: Perfume headspace dependence on container material Excessive perfume buildup on clothes washed with perfumed laundry detergent compositions is a continuing complaint for laundry-soluble unit-dose articles within a consumer segment seeking to avoid an overwhelming perfume experience on clothes. Perfume buildup in the container headspace during storage is used as a signal to assess the risk of clothes becoming "over-" perfumed during the wash cycle. This study compares the impact of storage container materials in terms of perfume buildup in the container headspace, and more specifically, paper-based containers were the single variable compared to conventional market plastic-type containers.
[0094] Similar sized closed packages containing 38 water-soluble unit dose articles were stored in climate chambers at 20°C and 32°C for 20 and 35 days, after which the accumulated perfume headspace was analytically quantified. Two replicates of each container type were tested and the average total headspace count is reported.
[0095] material: Water-soluble unit dose product: Ariel 3-in-1 Pods, marketed in the UK in April 2019 Comparative example: Plastic tub - Ariel 3-in-1 Pods polypropylene tub (dimensions: length = 245 mm, height = 135 mm, width = 96 mm, quantity: 38) commercially available in the UK in April 2019 Example 1: Corrugated cardboard tabs (dimensions: length = 245 mm, height = 135 mm, width = 96 mm, material: E-flute cardboard board 382 gsm KW2 135 / RF1 90 / board KW2 135, quantity: 38) Example 2: Corrugated cardboard tab with PE lamination (dimensions: length = 245 mm, height = 135 mm, width = 96 mm, material code GD2 210 / HPF 140 (E-flute) / BKR 170 + PE15
[0096] Test setup: storage: Two replicates of all container types were filled with 38 pouches and stored in a closed position in constant temperature climate chambers (20°C and 32°C) for 20 days, after which the perfume headspace was analytically quantified as described herein. After analytical quantification, the containers were reclosed and re-stored in the climate chambers for a further 15 days.
[0097] Analysis quantification: The stored containers were placed in an open position in a sealed plastic box and left for 1 hour to allow the fragrance headspace to redistribute from the container into the plastic box. Air was then drawn from the box (at a constant flow rate for 10 minutes) through an aerosol filter that captured fragrance particles from the air gap. The aerosol filter was then analytically evaluated using GC / MS for the presence and quantification (mmol / L) of specific fragrance particles. Table 1 summarizes the list of fragrance materials analyzed. The amounts of each individual fragrance material recovered were summed, and the resulting total headspace counts were reported.
[0098] [Table 1]
[0099] result: The total headspace results in Table 2 clearly show that, unlike plastic tubs, paper-based containers according to the present invention (with or without lamination) exhibit significantly lower headspace buildup upon storage.
[0100] [Table 2]
[0101] Dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
Claims
1. A consumer product comprising at least one water-soluble unit dose article and a container; the at least one water-soluble unit dose article comprises at least one water-soluble film oriented to create at least one unit dose interior compartment, the at least one unit dose interior compartment comprising a detergent composition; the container comprises a first portion, the first portion comprising a first compartment in which the at least one water-soluble unit dose article is contained, the first compartment being accessible through a first opening; the container comprises a second portion positioned to prevent access through the first opening when the container is not in use but movable to allow access to the first opening when the container is in use; the container comprises one or more locking means, each comprising a first locking component on the first portion and a second locking component on the second portion, wherein there are an equal number of first locking components and second locking components, and each first locking component is configured to engage with a corresponding second locking component to prevent movement of the second locking component that allows access to the first opening until the one or more first locking components and the corresponding second locking component are disengaged from each other by a user; the second portion is a removable lid, and in a closed position the second portion blocks access to the first opening, and when in the closed position the one or more first locking components engage with the one or more second locking components, and when in an open position the one or more first locking components and the one or more second locking components are disengaged and the second portion can be completely removed to allow access to the first opening; the first portion has an inner surface and an outer surface, the inner surface facing the first compartment; at least a portion of the interior surface of the first portion is constructed from a paper-based material such that the water-soluble film of the at least one water-soluble unit dose article directly contacts the paper-based material of the interior surface; The detergent composition comprises a free perfume composition, The one or more locking means a first locking means; a second locking means oriented on the container opposite the first locking means; Equipped with the first locking means and the second locking means respectively comprise the first locking component on the first portion and the second locking component on the second portion; the first locking component and each of the second locking components engage to prevent movement of the second portion providing access to the first opening until the first locking component and the second locking component are disengaged from one another by a user; the first locking components are respective tabs projecting from the outer surface of the first portion, and the second portion includes an abutment with which the first locking components can be releasably engaged; The consumer product, wherein the first locking means and the second locking means are spaced apart by a distance of between 70mm and 150mm.
2. a. the one or more first locking components are constructed from a paper-based material; or b. the one or more second locking components are constructed from a paper-based material; or c) The consumer product of claim 1, which is a combination thereof.
3. 3. The consumer product of claim 1 or 2, wherein the entire inner surface of the first portion is constructed from a paper-based material.
4. The consumer product of any one of claims 1 to 3, wherein the second portion comprises an inner surface and an outer surface, and at least a portion of the inner surface of the second portion is constructed from a paper-based material.
5. The consumer product of any one of claims 1 to 4, wherein the paper-based material comprises paper, cardboard, or a mixture thereof.
6. 6. The consumer product of claim 5, wherein the paper-based material is a laminate comprising paper, cardboard, or a mixture thereof and at least a second material, and the inner surface of the first portion comprises paper, cardboard, or a mixture thereof.
7. 7. The consumer product of claim 6, wherein the second material comprises a plastic material.
8. 8. Consumer product according to any one of the preceding claims, wherein the volume of the first compartment is between 500 ml and 5000 ml.
9. A consumer product according to any one of claims 1 to 8, wherein the detergent composition is a liquid, a solid, or a mixture thereof.
10. 10. The consumer product of any one of claims 1 to 9, wherein the water-soluble film comprises a polymer, the polymer comprising a homopolymer, copolymer, or mixture thereof selected from polyvinyl alcohol, polyvinylpyrrolidone, polyalkylene oxide, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetate, polycarboxylic acids and salts, polyamino acids or peptides, polyamides, polyacrylamides, maleic acid / acrylic acid copolymers, starch and gelatin, polysaccharides including xanthum, carragum, or mixtures thereof.
11. the second portion comprises a top wall and at least one side wall; the first portion comprises a base wall and the first opening, the first opening being opposite the base wall, the base wall and the first opening being connected by at least one sidewall; In the closed position, the at least one side wall of the second portion at least partially overlaps within the one side wall of the first portion; 11. The consumer product of any one of claims 1 to 10, wherein the first locking component is positioned on the at least one side wall of the first portion and the second locking component is positioned on the at least one side wall of the second portion.
12. 12. The consumer product of any one of claims 1 to 11, wherein the first portion is constructed from a first blank and the second portion is constructed from a second blank.
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