Laundry products with drain back closure

Abstract

A laundry product comprising a liquid composition having a pH of 1 to 6, and a container including a base, a side wall extending from the base to a neck, and a closure. The closure comprises an upper profile having a spud protruding from its inner surface and engaging with a body, and a contact portion of the body sealed and engaged with the spud, the contact portion extending around a longitudinal axis passing through the upper profile and the spud, a collar engaging with the contact portion and oriented away from the upper profile, a base portion bounded around the contact portion, and a sealing member which is at least a part of the base portion, the sealing member which is bounded around a fragile boundary extending around a longitudinal axis, and a tab extending from the sealing member toward the upper profile, wherein the sealing member and the contact portion are a continuous single component material.

Description

Technical Field

[0001] A laundry product having a drain back closure.

Background Art

[0002] Users of laundry products continue to demand better performing packaging for laundry products. A tension that often arises when developing better performing packages is that the improvement in performance involves an increase in cost for the manufacturer. Business practicality typically is that at least a portion of that increased cost is reflected in the price that consumers pay for the laundry product.

[0003] User perception of the performance of a laundry product mostly arises based on the perceived effect of treating laundry with the laundry product. Thus, the manufacturer must make choices about which consumer benefits are most valuable to the consumer. If the manufacturer can improve the performance of the package while simultaneously reducing the cost of the package, that could enable the manufacturer to invest in an upgrade of the formulation of the laundry product or to offer a greater quantity of the laundry product at a similar price.

[0004] Drain back closures have historically been complex devices. In a typical design, the drain back closure fitting engages with the container, and a separate closure engages with the drain back closure fitting. This design requires molding multiple parts, handling multiple parts on the production line, and assembling multiple parts on the production line. This may require multiple molding machines and custom-made machinery to handle and assemble the individual components of the drain back closure. Since many laundry products are liquid laundry products, leaky packaging can be a concern. Each connection between parts, for example, each connection between the drain back closure fitting to the bottle neck and the closure to the drain back closure fitting, is a connection prone to leaks. Leaks that may occur from the time the package leaves the manufacturing plant until it is stored in the user's home are of particular concern to manufacturers.

[0005] Some liquid laundry products are known to splatter when dispensed. In the case of low-pH laundry products, splattering them onto surfaces not intended for contact can result in undesirable residues being left on those surfaces. Such laundry products may also be corrosive to the surfaces they come into contact with. [Overview of the project] [Problems that the invention aims to solve]

[0006] With these limitations in mind, there is a continuing unaddressed need for liquid laundry products with a low pH that can be conveniently distributed. [Means for solving the problem]

[0007] A laundry product comprising a liquid composition having a pH of 1 to 6, a container including a base, a side wall extending from the base to a neck, and a closure, wherein the closure comprises an upper profile having an outer surface and an inner surface opposite the outer surface, a spud protruding from the inner surface, a hinge engaging the upper profile with a body, a contact portion of the body sealed and engaged with the spud, the contact portion extending around a longitudinal axis passing through the upper profile and the spud, a collar engaging with the contact portion and oriented away from the upper profile, the collar engaging with the neck, a floor portion bounded around the contact portion, a sealing member which is at least a part of the floor portion, the sealing member which is bounded around a fragile boundary extending around the longitudinal axis, and a tab extending from the sealing member toward the upper profile, wherein the sealing member and the contact portion are a continuous single component. [Brief explanation of the drawing]

[0008] [Figure 1] This is a closure where the upper profile is in the open position and the sealing member has not yet been removed from the closure. [Figure 2] This is a top view of the closure with the upper profile in the open position. [Figure 3] This is a bottom view of the closure with the upper profile in the open position. [Figure 4] This is a bottom perspective view of the closure. [Modes for carrying out the invention]

[0009] The closures described herein may be practical for use as closures for containers holding liquid laundry products. The closures may be advantageous for laundry products containing liquid compositions having a pH of 1 to 6, and optionally also having a kinematic viscosity of less than 1 mPa·s. Such liquid compositions can easily spill or splash onto surfaces, and residues may be left on such surfaces as the volatile components of the liquid composition evaporate. Furthermore, such liquid compositions may be corrosive to surfaces that come into contact with them.

[0010] A closure 10 for the container 20 is shown in Figure 1. The closure 10 shown in Figure 1 is a flip-top closure. The closure 10 may include an upper profile 30. The upper profile 30 may be a plate, shell, or other shaped component material. The upper profile 30 is the top of the closure 10 when the closure engages with the container 20, the container 20 is in an upright position, and the neck 275 of the container 20 is above the base 260 of the container 20.

[0011] Closure 10 may be practical for use as part of the packaging of the laundry product 240. The laundry product 240 may comprise a liquid composition 250 and a container 20. The container 20 may have a base 260 and side walls 270 extending from the base 260 to a neck 270.

[0012] The upper profile 30 may have an outer surface 40 and an inner surface 50 opposite to the outer surface 40. When the closure 10 is closed, the inner surface 50 is inside the closure 10. The outer surface 40 is exposed to the environment when the closure 10 is in its closed state.

[0013] The spud 60 can protrude from the inner surface 50. The spud 60 is an element that can provide a seal when the upper profile 30 is in the closed position. The hinge 70 can engage the upper profile 30 with the body 80 of the closure 10. The upper profile 30 can swing around the hinge 70, moving the upper profile 30 from the closed position to the open position. Optionally, the hinge 70 may be a living hinge 75. The living hinge 75 is a hinge 70 that has at least two stable low-energy states and an energy state between the two stable low-energy states that is higher than each of the two low-energy states. That is, the living hinge 75 stores some energy as the upper profile 30 rotates from the closed position to the open position around the living hinge 75. The energy state between the two stable low-energy states can be high enough that, when gravity acts, the mass of the upper profile 30 is not sufficient to rotate the upper profile 30 from the open position to the closed position. This can help reduce the possibility that the upper profile 30 may unintentionally obstruct the distribution of the contents of the container 20.

[0014] The main body 80 may include a contact portion 90. The contact portion 90 can engage with the spud 60 in a sealing manner. The tight, continuous fit between the spud 60 and the contact portion 90 can provide a leak-proof seal for holding the contents of the container 20 after the user has first used the closure 10 to dispense the contents of the container 20. The spud 60 may be a continuous flange 190 extending around a longitudinal axis L. Optionally, the continuous flange 190 may be closer to the longitudinal axis L than the contact portion. Optionally, the contact portion 90 may be closer to the longitudinal axis L than the continuous flange 190.

[0015] The contact portion 90 can extend around the longitudinal axis L that passes through the upper profile 30 and the spud 60 when the closure 10 is closed. The contact portion 90 can seal-engage with the spud 60 around the entire length of the longitudinal axis L. The spud 60 is located inside the contact portion 90, and as a result, the spud 60 is either closer to the longitudinal axis L than the contact portion 90 or coincides with the longitudinal axis L. Optionally, the spud 60 is located outside the contact portion 90 such that the contact portion is closer to the longitudinal axis L than the spud 60. In such a configuration, the spud 60 may be a continuous flange 190 that seal-engages with the surface of the contact portion 90 oriented away from the longitudinal axis L.

[0016] The closure 10 may further comprise a collar that engages with the contact portion 90. The collar may be oriented away from the upper profile 30. The collar may be part of the closure 10 that engages with the container 20 and can optionally be disengaged. For example, the collar may comprise a bead that can snap into a complementary structure on the neck 275 of the container 20. Optionally, the collar may comprise threads for attaching the collar to complementary threads located on the neck 275 of the container 20. Optionally, the collar may comprise a lug that can engage with a complementary bayonet-type fixture located on the neck 275 of the container 20. The collar may engage with the inside, outside, or both of the inside and outside of the neck 275 of the container 20. Optionally, the collar may be welded, glued, or otherwise attached to either the inside or outside, or both, of the neck 275 of the bottle.

[0017] The closure 10 may further comprise a floor portion 110 surrounded by a contact portion 90. The floor portion 110 may form at least a portion of a thin-walled structure that forms a collar leak-proof closure before the closure 10 is prepared so that the user can dispense the contents of the container 20.

[0018] Closure 10 can comprise a sealing member 120 that is at least part of, or optionally the entire, floor portion 110. The sealing member 120 can be surrounded by a frangible boundary 130 that extends around the longitudinal axis L. The tab 140 can extend from the sealing member 120 towards the upper profile 30. The tab 140 can extend in a direction away from the collar from the sealing member 120.

[0019] In a first example, to operate the closure 10, the user flips open the upper profile 30 by rotating the upper profile 30 about the hinge 70. This presents the interior of the closure 10 to the user. Next, the user pulls on the tab 140 to remove the tab 140 from the closure 10. Depending on the configuration inside the closure 10, the entire floor portion 110 or a part of the floor portion 110 is removed, leaving an opening through which the contents of the container 20 can be dispensed.

[0020] [[ID=?]] The sealing member 120 can be beneficial in that it requires an intentional configuration of the closure 10 to enable the closure 10 to operate to dispense a liquid composition contained in the container 20 with which the closure 10 is engaged. A flip-top closure can accidentally flip open between when the closure 10 is applied to the container 20 when the laundry product is manufactured and when the product is first used by the user. The sealing member 120 reduces the likelihood that the liquid composition will splash or spill out of the container 20 if the flip-top closure opens accidentally.

[0021] The sealing member 120 and the contact portion 90 may be made from a single, continuous component. Providing the sealing member 120 and the contact portion 90 as a single, continuous component has several advantages over similar closure systems in which the sealing member 120 and the contact portion 90 are made from different materials. Firstly, when the sealing member 120 and the contact portion 90 are made from a single, continuous component, these components can be manufactured in a single-shot injection molding process. Single-shot injection molding is typically a much less expensive process based on the cost per part manufactured. When two different component materials are used, multi-shot injection molding may be required, which complicates mold design, injection and curing of the various component materials, and handling of the parts when the closure is manufactured. Furthermore, when the same material constitutes the sealing member 120 and the contact portion 90, the potential problem of weak connections between different components manufactured from different component materials is mitigated. When two different component materials are used, the components must be carefully selected to ensure that a leak-proof connection can be formed between the two components. Optionally, the sealing member 120, the contact portion 90, and the optional spout 150 may be made from a single continuous component. Optionally, the upper profile 30, the spud 60, the hinge 70, the contact portion 90, the collar, the base portion 110, the optional spout 150, the sealing member 120, and the tab 140 may be made from a single continuous component. Such a structure is conveniently molded by a single-shot injection molding process. Optionally, the sealing member 120, the contact portion 90, and the spout 150 may be made from a single continuous component. By providing a closure 10 made from a single component, it is possible to provide a closure 10 that can be conveniently placed in a single recycling stream. A closure 10 in which the sealing member 120 is made from one polymer material and the rest of the closure is made from another polymer material may make it more difficult to recycle the closure in a single recycling stream. Even when the sealing member 120 is removed from the closure 10, there may still be some remaining material that makes up the sealing member 120.If the material of the sealing member 120 is different from the remaining part of the closure 10, recycling of the used closure 10 may become complicated.

[0022] The single constituent material can be EVERCAP DMDA-124 NT 7 high density polyethylene available from The Dow Chemical Company, Midland, Michigan, USA. The single constituent material can be selected from the group consisting of high density polyethylene, low density polyethylene, polypropylene, nylon, polyethylene terephthalate, and mixtures thereof.

[0023] Optionally, the closure can engage with a container 20 made of the same single constituent material as the sealing member. By using the same constituent material for the closure 10 and the container 20, it is possible to provide a package that can be recycled in a single stream, which is more efficient than classifying the closure 10 and the container 20 into different recycling streams. The container 20 and the closure 10 can be composed of high density polyethylene.

[0024] The frangible boundary 130 may be thinner than the portion of the sealing member 120 along the frangible boundary 130. The frangible boundary 130 can be a thin portion of the constituent material forming the sealing member 120 and the abutting portion 90. For example, the frangible boundary 130 can have a thickness of about 2% to about 20%, optionally about 5% to about 15% of the thickness of the constituent material on either side of the frangible boundary. The frangible boundary 130 can have a width of about 2% to about 20%, optionally about 5% to about 15% of the thickness of the constituent material on either side of the frangible boundary. The frangible boundary 130 can have a thickness of about 0.1 mm. The frangible boundary 130 can have a width of about 0.2 mm. The frangible boundary 130 configured in this way can be easily torn by the user, but can be strong enough so that the frangible boundary 130 does not separate unintentionally.

[0025] The closure 10 may optionally further include a spout 150 projecting from the floor portion 110 toward the upper profile 30. The spout 150 may extend at least partially around the longitudinal axis L. The spout 150 may be closer to the longitudinal axis L than the contact portion 90. That is, the spout 150 may be surrounded by the contact portion 90.

[0026] Including a spout 150 as part of the closure 10 may help restrict the pouring of the contents of the container 20. In the case of a low pH composition contained in the container 20, the spout 150 may help a person dispensing the composition to avoid uncontrolled dispersion of splashes of the composition during dispensing, which could unintentionally come into contact with surfaces that are not intended to be in contact with such materials.

[0027] The sealing member 120 may be at least partially surrounded by the spout 150. A fragile boundary 130 can define the boundary between the sealing member 120 and the spout. When the user removes the sealing member 120 by pulling the tab 140, the spout 150 can be opened, and as a result, the contents of the container 20 can be dispensed by pouring them through the spout 150.

[0028] The spout 150 may have a dispensing lip 160. The longitudinal axis L may be between the dispensing lip 160 and the hinge 70. Such a configuration may be practical in that when the upper profile 30 is opened and swung around the hinge 70, the upper profile 30 and the dispensing lip 160 of the spout are on either side of the hinge 70. In that position, the upper profile 30 does not obstruct, or potentially obstruct, the distribution of the contents of the container 20 through the spout 150.

[0029] The drain back channel 170 may be defined by a portion of the contact portion 90, a portion of the spout 150, and a portion of the floor portion 110 connecting the contact portion 90 and the spout 150. The drain back channel 170 can capture drips or spills from the distribution lip 160 or other portions of the spout 150 and guide the material to a position where it can enter the container 20. When the closure 10 is positioned such that the distribution lip 160 is above the collar, the drain back channel 170 can be tilted away from below the distribution lip 160. When positioned in this manner, the drain back channel 170 drains away from below the distribution lip 160.

[0030] When the contents of container 20 are first used, the user can remove the sealing member 120 from the closure 10 by pulling the tab 140. The tab 140 may be a loop 180. When the upper profile 30 is in the closed position, the loop 180 may be positioned between the base 110 and the upper profile 30. In such a position, the sealing member 120 may be between the tab and the collar. Optionally, the longitudinal axis L may pass through the loop 180. The loop 180 may be sized and dimensional such that an adult can grasp and pull it to separate the sealing member 120 from the rest of the closure 10. The loop 180 may be grasped by the user's thumb and index finger. Optionally, the loop 180 may have an opening area sized and dimensional such that an adult's index finger can be accommodated so that the user can pull the loop 180 with their index finger. The loop 180 is approximately 50 mm 2 ~approximately 500mm 2 , optionally approximately 100mm 2 ~400mm 2 , optionally approximately 150mm 2 ~about 350mm 2 It may have an opening area.

[0031] The tab 140 may extend from the sealing member 120 at the starting position 145. The longitudinal axis L may be between the starting position 145 and the hinge 70 (Figure 2). This may be useful to the user in that when the upper profile 30 is opened and swung around the hinge, the upper profile 30 does not prevent the user from finding and pulling the tab 140 to remove the sealing member 120.

[0032] The spud 60 forms a plug seal with respect to the contact portion 90. The spud 60 can be larger than the footprint of the inner circumference of the contact portion 90, so that a plug seal can be formed between the spud 60 and the inner circumference of the contact portion 90. Optionally, the spud 60 may be a continuous flange 190 extending around the longitudinal axis L. The continuous flange 190 may be flexible and have a thin wall structure that conforms to the inner circumference of the contact portion 90. The continuous flange 190 may have a thickness of about 0.5 mm to about 3 mm, optionally about 0.5 mm to about 2 mm, measured perpendicular to the longitudinal axis L. The continuous flange 190 may protrude about 2 mm to about 20 mm, optionally about 5 mm to about 15 mm, away from the upper profile 30. The continuous flange 190 may have a circular shape that fits snugly with the circular inner circumference of the contact portion 90. Other smooth wall shapes on the inner circumference of the continuous flange 190 and the contact portion 90 are possible, such as teardrop, elliptical, and oblong shapes. The continuous flange 190 can provide some flexibility in the structure of the spud 60 so that it can conform to the inner circumference of the contact portion 90 even if there is a small irregularity in the shape of one or both of the inner circumference of the contact portion 90 or the continuous flange 190.

[0033] The collar is attachable to the container 20 and may optionally be part of a closure 10 that is attachable and detachable. The collar 100 may have an inward-facing surface 200 oriented toward the longitudinal axis L and an outward-facing surface 210 oriented away from the longitudinal axis L (Figure 3). The inward-facing surface 200 or the outward-facing surface 210 may have threads 220. Optionally, the inward-facing surface 200 or the outward-facing surface 210 may have a snap bead 230 (Figure 4). The collar 100 can engage with the container 20 by the threads 220 or the snap bead 230. The collar 100 can engage with the inside of the neck 275 of the container 20, the outside of the neck 275 of the container 20, or both the inside and outside of the neck 275 of the container 20.

[0034] Liquid composition 250 may have a pH of 1 to 6. Liquid compositions with an acidic pH may be useful for brightening colors by giving flexibility to fabrics and / or removing limescale that may have accumulated on the fabric surface, which may result from washing fabrics in hard water. Liquid composition 250 may have a pH of about 2 to about 5, optionally about 3 to about 4, and optionally about 2 to about 3. Liquid composition 250 can be applied to the load of laundry during the rinse cycle of a washing machine. Liquid composition 250 can be conveniently applied during the rinse cycle by using a rinse additive dispenser drawer of the washing machine, or other devices provided as part of the washing machine for applying rinse additives to laundry.

[0035] The pH of liquid composition 250 may be provided by citric acid or a salt thereof. The pH of liquid composition 250 may be provided by citric acid or a salt thereof. The pH of liquid composition 250 may be provided by polycarboxylic acid. Optionally, citric acid or a salt thereof or polycarboxylic acid may be provided at a level of about 10% to about 50% by weight of liquid composition 250. Optionally, liquid composition 250 may contain about 15% to about 40% by weight, optionally about 20% to about 30% by weight, of citric acid and / or a salt thereof or polycarboxylic acid of the liquid fabric care composition.

[0036] The liquid composition 250 of this disclosure may have a pre-acidity to pH 4.0 of at least about 1, or at least about 3, or at least about 5. The liquid composition 250 may have a pre-acidity to pH 4.0 of about 3 to about 10, or about 4 to about 7. As used herein, “pre-acidity” refers to the amount of NaOH per 100 g of product required to obtain the stated pH. Pre-acidity measurement, as used herein, is based on titration (at standard temperature and pressure) of a 1% distilled aqueous solution of the product to a pH 4.0 endpoint using a standardized NaOH solution. Although not bound by theory, pre-acidity measurement has proven to be the best measure of the acidifying power of the composition, or its ability to provide a target acidic washing pH when added to tap water at high dilutions, as opposed to pure or distilled water. Pre-acidity is controlled by the concentration of the organic acids added, in addition to the pH of the undiluted product, and in some embodiments by other buffering agents such as alkalizing agents, e.g., alkanolamines.

[0037] Liquid composition 250 may contain fragrance in an amount of about 0.01% to about 20% by weight of the liquid composition. The fragrance may provide a pleasant scent to liquid composition 250. Non-limiting examples of fragrances include, but are not limited to, aldehydes, ketones, and esters. Other examples include various natural extracts and natural compounds, which may include complex mixtures of components such as orange oil, lemon oil, rose extract, lavender, musk, patchouli, balsam extract, sandalwood oil, pine oil, and cedar. The final fragrance may contain complex mixtures of such components.

[0038] The liquid composition 250 may be an aqueous solution. The liquid composition may comprise about 30% to about 90% by weight of water. Optionally, the liquid composition may comprise about 50% to about 90% by weight, optionally about 60% to about 85% by weight, or optionally about 70% to about 80% by weight of water.

[0039] Optionally, the liquid composition 250 may contain an organic acid. The organic acid may preferably be selected from the group consisting of acetic acid, lactic acid, adipic acid, aspartic acid, carboxymethyl oxymalonic acid, carboxymethyl oxysuccinic acid, glutaric acid, hydroxyethyl iminoniacetic acid, iminodiacetic acid, maleic acid, malic acid, malonic acid, oxydiacetic acid, oxydisuccinic acid, succinic acid, sulfamic acid, tartaric acid, tartaric acid, tartaric acid, tartaric acid, or mixtures thereof.

[0040] The liquid composition 250 can be characterized by a relatively low viscosity. Such viscosity may be desirable for easy injection and / or to minimize clogging in the dispenser drawer of a machine. The liquid composition 250 may have a kinematic viscosity of less than 2 mPa.s according to ASTM D2169-99 at 60 rpm and 22°C. Optionally, the liquid composition 250 may have a kinematic viscosity of less than 1.5 mPa.s according to ASTM D2169-99 at 60 rpm and 22°C. Optionally, the liquid composition 250 may have a kinematic viscosity of less than 1 mPa.s according to ASTM D2169-99 at 60 rpm and 22°C.

[0041] To maintain a low viscosity, liquid composition 250 can be substantially free of other rheological improvers such as thickeners or structuring agents. Liquid composition 250 can be substantially free of salts such as inorganic salts like sodium chloride, magnesium chloride and / or calcium chloride, which can provide rheological modifications such as thickening. When used herein, such salts are not intended to contain neutralization products of the organic acids described herein.

[0042] Liquid composition 250 may have the formulations shown in Table 1.

[0043] [Table 1]

[0044] The following are examples of implementation. A. Laundry products (240), A liquid composition having a pH of 1 to 6, A container (20) comprising a base (260) and a side wall (270) extending from the base to a neck (275), A closure (10), wherein the closure is An upper profile (30) having an outer surface (40) and an inner surface (50) opposite to the outer surface, The spud (60) protruding from the inner surface, A hinge (70) that engages the upper profile with the main body (80), A contact portion (90) of the body that is sealed-engaged with the spud, the contact portion extending around the longitudinal axis (L) passing through the upper profile and the spud, A collar (100) that engages with the contact portion and is oriented away from the upper profile, the collar engaging with the neck, The floor portion (110) whose periphery is bounded by the abutment portion, A sealing member (120) which is at least a part of the floor portion, wherein the sealing member is bounded around by a fragile boundary (130) that extends around the longitudinal axis, The sealing member comprises a tab (140) extending toward the upper profile, A laundry product (240) in which the sealing member and the contact portion are made of a continuous, single component material. B. The laundry product according to paragraph A, wherein the liquid composition has a viscosity of less than 2 mPa·s at 60 rpm and 22°C according to ASTM D2169-99. C. The laundry product according to paragraph A or B, wherein the liquid composition contains about 30% to about 90% by weight of water. D. The laundry product according to any of paragraphs A to C, wherein the liquid composition contains a fragrance in an amount of about 0.01% to about 20% by weight of the liquid composition. E. The laundry product according to any of paragraphs A to D, wherein the liquid composition comprises about 10% to about 50% by weight of citric acid and / or its salts. F. The closure in question The closure according to any one of paragraphs A to E, further comprising a spout (150) projecting from the floor portion toward the upper profile, wherein the spout extends at least partially around the longitudinal axis and is closer to the longitudinal axis than the contact portion. G. The closure according to any of paragraphs A to F, wherein the sealing member is at least partially surrounded by the spout. H. The closure according to paragraph G, wherein the sealing member, the contact portion, and the spout are made of a single, continuous component material. I. The laundry product described in any of paragraphs A to H, wherein the unopened container lacks a membrane seal on the neck. J. The laundry product according to any of paragraphs A to I, wherein the liquid composition contains water in an amount of about 30% to about 90% by weight of the liquid composition. K. The laundry product described in any of paragraphs A to J, wherein the container lacks adhesive on the neck. L. The laundry product described in any of paragraphs A to K, wherein the unopened container lacks a membrane seal on the neck. M. The laundry product according to any of paragraphs A to L, wherein the liquid composition contains about 10% to about 50% by weight of polycarboxylic acid. N. The laundry product according to any one of paragraphs A to M, wherein the closure further includes a spout (150) projecting from the floor toward the upper profile, the spout extending at least partially around the longitudinal axis and closer to the longitudinal axis than the contact, the spout having a distribution lip (160), the longitudinal axis being between the distribution lip and the hinge, and a drain back channel (170) defined by a portion of the contact, a portion of the spout, and a portion of the floor connecting the contact and the spout, and the drain back channel being inclined away from below the distribution lip when the closure is positioned such that the distribution lip is above the collar. O. The laundry product according to any of paragraphs A to N, wherein the tab is a loop (180), the loop is positioned between the floor and the upper profile, and the longitudinal axis optionally passes through the loop. P. The laundry product according to any one of paragraphs A to O, wherein the spud is a continuous flange (190) extending around the longitudinal axis. Q. The closure in question, The laundry product according to any of paragraphs A to P, further comprising a spout projecting from the floor toward the upper profile, wherein the spout extends at least partially around the longitudinal axis and is closer to the longitudinal axis than the contact portion, and the sealing member, the contact portion, and the spout are made of a continuous single component material. R. The laundry product according to any one of paragraphs A to Q, wherein the contact portion is sealed and engaged with the spud around the entire length of the longitudinal axis. S. The laundry product according to any of paragraphs A to R, wherein the liquid composition has a preliminary acidity of at least about 1, or at least about 3, or at least about 5 to pH 4.0.

[0045] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​listed. Instead, unless otherwise specified, each such dimension is intended to mean both the listed value and the functionally equivalent range encompassing that value. For example, a dimension disclosed as "40 mm" is intended to mean "approximately 40 mm."

[0046] All documents referenced herein, including any patents or patent applications that are cross-referenced or related, and any patent applications or patents on which this application claims priority or benefit thereof, are incorporated herein by reference in their entirety, unless expressly excluded or otherwise limited. No reference to any document shall be deemed prior art to any invention disclosed or claimed herein, nor shall any such invention be taught, suggested, or disclosed, either alone or in combination with any one or more other references. Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in any document incorporated by reference, the meaning or definition given to that term in this document shall prevail.

[0047] While specific embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, it is intended that all such changes and modifications within the scope of the invention be covered in the appended claims.

Claims

1. Laundry products (240), A liquid composition having a pH of 1 to 6, A container (20) comprising a base (260) and a side wall (270) extending from the base to a neck (275), A closure (10), wherein the closure is An upper profile (30) having an outer surface (40) and an inner surface (50) opposite to the outer surface, The spud (60) protruding from the inner surface, A hinge (70) engages the upper profile with the main body (80), The contact portion (90) of the main body is sealed and engaged with the spud, and the contact portion extends around a longitudinal axis (L) passing through the upper profile and the spud, A collar (100) that engages with the contact portion and is oriented away from the upper profile, wherein the collar engages with the neck, The floor portion (110) whose periphery is bounded by the aforementioned contact portion, A sealing member (120) which is at least a part of the floor portion, wherein the sealing member is bounded around by a fragile boundary (130) that extends around the longitudinal axis, The sealing member comprises a tab (140) extending toward the upper profile, The sealing member and the contact portion are a continuous single component material in the laundry product (240).

2. The laundry product according to claim 1, wherein the liquid composition has a viscosity of less than 2 mPa·s at 60 rpm and 22°C according to ASTM D2169-99.

3. The laundry product according to claim 1 or 2, wherein the liquid composition contains 30% to 90% by weight of water.

4. The laundry product according to any one of claims 1 to 3, wherein the liquid composition contains 0.01% to 20% by weight of a fragrance.

5. The laundry product according to any one of claims 1 to 4, wherein the liquid composition comprises 10% to 50% by weight of citric acid and / or a salt thereof.

6. The laundry product according to any one of claims 1 to 5, wherein the closure further comprises a spout (150) protruding from the floor portion toward the upper profile, the spout extending at least partially around the longitudinal axis and being closer to the longitudinal axis than the contact portion.

7. The laundry product according to any one of claims 1 to 6, wherein the sealing member is at least partially surrounded by the spout.

8. The laundry product according to claim 7, wherein the sealing member, the contact portion, and the spout are made of a continuous single component material.

9. The laundry product according to any one of claims 1 to 8, wherein the unopened container lacks a membrane seal on the neck.

10. The laundry product according to any one of claims 1 to 9, wherein the liquid composition contains 30% to 90% by weight of water.

11. The laundry product according to any one of claims 1 to 10, wherein the liquid composition comprises 10% to 50% by weight of polycarboxylic acid.

12. The laundry product according to any one of claims 1 to 11, wherein the closure further includes a spout (150) projecting from the floor toward the upper profile, the spout extending at least partially around the longitudinal axis and closer to the longitudinal axis than the contact portion, the spout having a distribution lip (160), the longitudinal axis being between the distribution lip and the hinge, and a drain back channel (170) defined by a portion of the contact portion, a portion of the spout, and a portion of the floor connecting the contact portion and the spout, and the drain back channel being inclined away from below the distribution lip when the closure is positioned such that the distribution lip is above the collar.

13. The laundry product according to any one of claims 1 to 12, wherein the tab is a loop (180), the loop is positioned between the floor and the upper profile, and the longitudinal axis optionally passes through the loop.

14. The laundry product according to any one of claims 1 to 13, wherein the closure further comprises a spout projecting from the floor portion toward the upper profile, the spout extending at least partially around the longitudinal axis and closer to the longitudinal axis than the contact portion, and the sealing member, the contact portion and the spout are made of a continuous single component material.

15. The laundry product according to any one of claims 1 to 14, wherein the liquid composition has a pre-acidity of at least 1, or at least 3, or at least 5 relative to pH 4.0.

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