Bath additive container and bath additive cap

Abstract

This invention provides a bath additive container and cap that utilize readily available plastic bottles, allowing users to easily and effectively dispense the foam formed by the effervescence of bath additives, making it enjoyable to use in a bath. [Solution] The device comprises a PET bottle 12 containing bath salts 28 inside, and a bath salt cap 18 attached to the PET bottle 12 with a discharge port 26 that connects the inside and outside of the PET bottle 12. The bath salts 28 foam up and form foam 32 through a predetermined operation. When the bath salts 28 foam up inside the PET bottle 12, the foam 32 is discharged to the outside through the discharge port 26 of the bath salt cap 18 due to the pressure inside the PET bottle 12. The bath salts 28 contain carbonate and acid, and when dissolved in the liquid 30 placed inside the PET bottle 12, carbon dioxide gas is generated and the foam 32 is formed.

Description

Technical Field

[0001] This invention relates to a container for bath agent and a cap for bath agent, which contain a bath agent that foams by a predetermined operation and discharges the foam formed by the foaming of the bath agent.

Background Art

[0002] Conventionally, there are bath agents that generate carbon dioxide gas and foam when placed in a bathtub. There are those who enjoy using such foaming bath agents. The bath agent production set and bath agent production method of Patent Document 1 include a first agent containing a thickener and a foaming agent and capable of generating a viscous substance with an increased viscosity of the target liquid by the thickener, and a second agent containing a foaming accelerator and capable of generating a foamed bath agent by foaming and expanding the viscous substance by the reaction of the foaming accelerator and the viscous substance. This bath agent production method first puts tap water, which is the target liquid, into a container, puts the first agent into it, and stirs with a stirring rod to generate a viscous substance. Then, the second agent is put into this viscous substance and stirred with a stirring rod. Then, it foams and the viscous substance gradually expands due to bubbles. The expanded viscous substance is put into the warm water in the bathtub and used as a bath agent. Thereby, the enjoyment and fun of making a bath agent can be provided to the user.

[0003] Also, the mixed bath agent and its usage method of Patent Document 2 include a powdery A agent containing an alkali metal salt and a surfactant, and a liquid B agent containing an organic acid and a water-soluble polymer. The usage method is to put the A agent and the B agent into a container and stir well. Then carbon dioxide is generated and bubbles overflow; then it is poured into the hot water in the bathtub and used as a bath agent. Thereby, the creamy feeling and long-lasting foaming can be enjoyed.

[0004] Besides bath salts, some people enjoy using body washes. Patent Document 3 describes a composition and a method for experiencing the sensation of having beer poured over oneself. This composition contains a beer-like sensation component, a foaming component, and a cleansing component. When mixed with water, a foaming phenomenon occurs, allowing the body to be washed and the sensation of having beer poured over it to be enjoyed. The container for filling the composition is preferably shaped like a beer bottle. The method of use is to pour warm water into the container containing the composition, cover the opening with a finger, and shake the container. This causes the composition to dissolve in the warm water and foam to occur. When the finger covering the opening is released and the mixture is poured over the body, the carbon dioxide gas causes it to spray out forcefully, giving the sensation of having beer poured over oneself. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2021-6510 [Patent Document 2] Japanese Patent Publication No. 2012-62271 [Patent Document 3] Japanese Patent Publication No. 2010-116359 [Overview of the project] [Problems that the invention aims to solve]

[0006] In all of the background technologies described above, the bath additive is foamed by stirring or shaking it in any container, which is a time-consuming process. Furthermore, the foam is added to the bathtub or poured over the body, and there is no consideration for easily and vigorously dispensing the foam formed by the foaming bath additive, or for enjoying the process of dispensing it.

[0007] This invention was made in view of the problems of the background technology described above, and aims to provide a bath additive container and a bath additive cap that can be used with readily available PET bottles to easily and forcefully and cleanly dispense the foam formed by the effervescence of bath additives, allowing for enjoyment. [Means for solving the problem]

[0008] This invention relates to a bath additive cap that can be attached to a PET bottle capable of containing bath additives, and is provided with a discharge port that connects the inside and outside of the PET bottle. The bath additive foams up and forms a foam when a predetermined operation is performed, and when the bath additive foams up inside the PET bottle, the foam is discharged to the outside from the discharge port of the bath additive cap due to the pressure inside the PET bottle. The inner diameter of the discharge port is preferably about 3 mm to 5 mm.

[0009] This invention relates to a bath additive container comprising a PET bottle that contains bath additives inside, and a bath additive cap attached to the PET bottle and having a discharge port that connects the inside and outside of the PET bottle. The bath additive foams up and forms a foam when a predetermined operation is performed, and when the bath additive foams up inside the PET bottle, the foam is discharged to the outside from the discharge port of the bath additive cap due to the pressure inside the PET bottle.

[0010] The bath additive contains a carbonate and an acid, and when dissolved in a chemical solution containing a surfactant placed inside the PET bottle, carbon dioxide gas is generated and foam is produced, and the foam is formed by the surfactant in the chemical solution.

[0011] The PET bottle is provided with a cylindrical mouth, and a male screw is formed on the outer surface of the mouth. The bath additive cap is provided with a cylindrical side that covers the outer surface of the mouth of the PET bottle and a top surface that closes the mouth of the PET bottle. A female screw is provided on the inner circumferential surface of the side that screws into the male screw of the mouth of the PET bottle, and the bath additive cap is detachably attached to the mouth.

[0012] The bath additive is a tablet small enough to pass through the opening of the PET bottle. The PET bottle may be one used for storing beverages. [Effects of the Invention]

[0013] The bath additive container and cap of this invention utilize readily available PET bottles, etc., to easily and quickly dispense the foam formed by the effervescence of the bath additive, allowing users to enjoy watching the dispensing process and touching the dispensed foam. The PET bottles used can also be those used to hold beverages, and the bottles can be reused after use, making effective use of resources. [Brief explanation of the drawing]

[0014] [Figure 1] This is a longitudinal cross-sectional view showing the usage state of a bath additive container and bath additive cap according to one embodiment of this invention. [Figure 2] This is a front view of the PET bottle and bath additive cap, which are the bath additive containers in this embodiment. [Modes for carrying out the invention]

[0015] The embodiments of this invention will now be described below with reference to the drawings. Figures 1 and 2 show one embodiment of this invention, in which the bath additive container 10 comprises a PET bottle 12 that contains bath additives 28 inside, and a bath additive cap 18 attached to the PET bottle 12 and provided with a discharge port 26 that connects the inside and outside of the PET bottle 12.

[0016] The PET bottle 12 may be used to store various liquid products, such as beverages. The PET bottle 12 is a bottomed cylindrical shape, with a small diameter cylindrical mouth 14 at the top, and male threads 16 are formed on the outer surface of the mouth 14.

[0017] Next, the bath agent cap 18 will be described in detail. The bath agent cap 18 is made of a synthetic resin or the like having appropriate hardness. The bath agent cap 18 is provided with a cylindrical side surface 22 that covers the outer surface of the mouth portion 14 of the plastic bottle 12 and an upper surface 20 that seals the mouth portion 14. On the inner peripheral surface of the side surface 22, a female screw 24 that engages with the male screw 16 of the mouth portion 14 of the plastic bottle 12 is provided, and it is detachably and hermetically attached to the mouth portion 14. The upper surface 20 of the bath agent cap 18 is hemispherical and convex upward. The central portion of the upper surface 20 is located outside the insertion direction of the mouth portion 14 with respect to the upper end portion 14a of the mouth portion 14, and an internal space 20a is formed inside. The internal space 20a communicates with the inside of the plastic bottle 12. The upper surface 20 is provided with a discharge port 26 that communicates the internal space 20a, that is, the inside of the plastic bottle 12, with the outside. The discharge port 26 is a small circular through-hole that penetrates the wall thickness of the upper surface 20, and the inner diameter is about 3 to 5 mm. The position of the discharge port 26 is located in a portion facing horizontally when the plastic bottle 12 with the bath agent cap 18 attached is placed upright, and penetrates the wall thickness of the upper surface 20 in the horizontal direction.

[0018] The bath agent 28 used in the bath agent container 10 will be described. The bath agent 28 generates carbon dioxide gas and foams by being dissolved in a chemical solution 30 containing a plurality of surfactants. Bubbles are stacked by the surfactant, and a foam 32 is three-dimensionally formed. The bath agent 28 is a tablet sized to pass through the mouth portion 14 of the plastic bottle 12. The shape of the tablet is, for example, a long cylindrical shape in one direction, and the diameter of the cylinder is smaller than the inner diameter of the mouth portion 14 of the plastic bottle 12. The bath agent 28 contains a carbonate and an acid, and may also contain bath agent active ingredients such as a coloring agent, a flavoring agent, a moisturizing component, and a hot spring component. An example of the drug components of the bath agent 28 is shown in Table 1.

Table 1

[0019] An example of the components of the chemical solution 30 is shown in Table 2.

Table 2

[0020] Next, the usage method of the bathing agent container 10 and the bathing agent cap 18 of this embodiment will be described. First, put a predetermined amount of hot water into the plastic bottle 12, add the chemical solution 30 to the hot water, and gently shake to mix. Here, a 1-liter plastic bottle 12 is used, the temperature of the hot water is about 40°C, the amount of the hot water is about 2 / 3 of the plastic bottle 12, and the chemical solution 30 is about 5 g. Then, put the bathing agent 28 into the plastic bottle 12, screw the bathing agent cap 18 onto the mouth 14 of the plastic bottle 12 to close it, and let it stand. The bathing agent 28 is put in an amount sufficient to foam the hot water mixed with the chemical solution 30, and the weight of one tablet of the bathing agent 28 and the number of tablets to be put in are set appropriately.

[0021] After waiting for a while, the bathing agent 28 dissolves in the hot water mixed with the chemical solution 30, carbon dioxide gas 31 is generated and foams, the foaming by the carbon dioxide gas 31 is continuously promoted, and the foam 32 is three-dimensionally formed by the surfactant of the chemical solution 30. As a result, the foam 32 fills the inner side of the plastic bottle 12 and the internal space 20a of the upper surface 20. Then, the pressure inside the plastic bottle 12 increases due to the carbon dioxide gas 31, and the foam 32 filling the inner side of the plastic bottle 12 and the internal space 20a of the upper surface 20 is discharged to the outside from the discharge port 26 of the bathing agent cap 18. Since the inner diameter of the discharge port 26 is as small as 3 to 5 mm, it is discharged neatly like a powerful water spray.

[0022] This allows users to enjoy watching the foam 32 being dispensed and touching the dispensed foam 32. The foam 32 is formed when the bath additive 28 is foamed and is harmless to touch. Additionally, by covering the dispensing port 26 with a finger or similar object to increase the internal pressure and then releasing it, the force of the dispensing will increase, allowing users to enjoy the variation. After dispensing the foam 32, remove the bath additive cap 18 from the PET bottle 12, wash it with water, etc., and reuse it. The dispensed foam 32 and the liquid remaining in the PET bottle 12 can also be dissolved in bathwater and used as a bath additive.

[0023] According to the bath additive container 10 and bath additive cap 18 of this embodiment, a readily available PET bottle 12 can be used to easily and vigorously dispense the foam 32 formed by the foaming of the bath additive 28, allowing users to enjoy watching the dispensing process and touching the dispensed foam 32. Although it utilizes bath additive 28, it can be commercialized as a general-purpose item (toy). Because the proportion of baking soda in the bath additive 28 is higher than usual, and the chemical solution 30 contains multiple surfactants, simply placing the bath additive 28 and chemical solution 30 in the PET bottle 12 and letting it stand generates a large amount of carbon dioxide gas, which is then vigorously dispensed. The carbon dioxide gas agitates the bath additive 28 and chemical solution 30, forming a sufficient amount of foam 32. The process of forming the foam 32 is simple, and the user does not need to stir with a stirring rod or shake the container. The foam 32 is formed by the foaming of the bath additive 28 and is harmless to touch. When the dispensed foam 32 or the liquid remaining in the plastic bottle 12 is added to the bathtub, the active ingredients of the bath additive dissolve into the bathwater, and the moisturizing and hot spring components provide a bathing effect.

[0024] After dispensing the foam 32, the bath additive cap 18 can be removed from the mouth 14 of the PET bottle 12, and the PET bottle 12 and the bath additive cap 18 can be washed with water or the like and reused. The PET bottle 12 is easy to wash and can be reused repeatedly. The PET bottle 12 may also be used to store beverages, and the used PET bottle 12 can be reused, making effective use of resources.

[0025] The bath additive cap 18 has a female thread 24 that can be screwed onto the male thread 16 of the mouth 14 of the PET bottle 12, allowing it to be easily attached to and detached from various PET bottles 12 of different capacities. The foam 32 is dispensed by the pressure of the carbon dioxide gas 31 generated from the bath additive 28, so batteries or high-pressure gas are not required. The shape of the bath additive cap 18 is simple, preventing clogging of the discharge port 26 and making it easy to clean.

[0026] The bath additive container and cap of this invention are not limited to the above embodiment, and the color and shape of the bath additive cap can be freely designed. For example, the top surface of the bath additive cap may be in the shape of a person or an animal. The dispensing port only needs to reliably dispense the foam, and the inner diameter of the dispensing port does not need to be 3mm to 5mm, but if it is too large, the foam will not flow smoothly. The position of the dispensing port is free, and it may be inserted vertically or diagonally upward when the PET bottle with the bath additive cap attached is upright, and multiple ports may be provided. The shape of the dispensing port may be rectangular or polygonal in addition to circular, and a cylindrical body surrounding the dispensing port may protrude outward. For example, the cylindrical body may be designed in the shape of a person or an animal's mouth. The components and amounts of the bath additive and liquid medicine may be other than those described above and can be changed as appropriate. The liquid medicine does not need to be dissolved in hot water; it may contain a lot of water and be used without dissolving in hot water. The bath salts, liquid medicine, plastic bottle, and bath salt cap can be sold as a set, or as separate products. [Explanation of symbols]

[0027] 10 Bath additive containers 12 plastic bottles 14 Mouth 16 Male screw 18 Bath additive cap 20 Top side 22 Side view 24 Female thread 26 Outlet 28 Bath additives 30 chemical solutions 31 Carbon dioxide 32 Forms

Claims

1. A cap for bath salts that can be attached to a PET bottle capable of containing bath salts inside, and which has a discharge port that connects the inside and outside of the PET bottle, The bath additive foams up and forms a foam when a predetermined operation is performed, and when the bath additive foams up inside the PET bottle, the foam is discharged outwards from the outlet of the bath additive cap due to the pressure inside the PET bottle.

2. The bath additive cap according to claim 1, wherein the inner diameter of the discharge port is 3 mm to 5 mm.

3. It comprises a PET bottle that contains bath salts inside, and a bath salt cap attached to the PET bottle, which has a discharge port that connects the inside and outside of the PET bottle. The bath additive foams up and forms a foam when a predetermined operation is performed, and when the bath additive foams up inside the PET bottle, the foam is discharged outwards from the outlet of the bath additive cap due to the pressure inside the PET bottle, characterized in that the bath additive container is such that the bath additive foams up and forms a foam.

4. The bath additive container according to claim 3, wherein the bath additive contains a carbonate and an acid, and when dissolved in a chemical solution containing a surfactant placed inside the PET bottle, carbon dioxide gas is generated and foam is produced, and the foam is formed by the surfactant in the chemical solution.

5. The aforementioned PET bottle is provided with a cylindrical opening, and male threads are formed on the outer surface of the opening. The bath additive container according to claim 3, wherein the bath additive cap is provided with a cylindrical side surface that covers the outer surface of the mouth of the PET bottle and a top surface that closes the mouth of the PET bottle, and the inner circumferential surface of the side surface is provided with a female thread that screws onto the male thread of the mouth of the PET bottle, and the bath additive cap is detachably attached to the mouth.

6. The bath additive container according to claim 5, wherein the bath additive is a tablet sized to pass through the mouth of the PET bottle.

7. The aforementioned PET bottle is used for storing beverages, as per any one of claims 3 to 6, for use as a cap for bath additives.

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