JPWO2014007365A1 - Products in tube containers - Google Patents

Abstract

In the tube-contained product of the present invention, paste-like contents are accommodated in a tube container (1) including a tube body (10) and a pouring body (20) provided at the tip of the tube body (10). The pouring body (20) is formed with pouring passages (30a, 30b, 30c) extending toward the tip and communicating the inside and the outside of the tube body (10). The axes (P1, P2, P3) of (30a, 30b, 30c) are parallel to each other, and the opening diameter R of the arbitrary extraction channel A, the extraction channel A, and the extraction channel A The relationship between the distance D and the other extraction channel B closest to the surface satisfies R / D = 0.1 to 5, and the content is [when shear stress is measured with a cone plate viscometer Area α (Pa / s)] / [rotary viscometer surrounded by hysteresis loop drawn in Constant viscosities β (Pa · s)] = satisfy 20-70.

Description

The present invention relates to a product in a tube container.
This application claims priority on July 6, 2012 based on Japanese Patent Application No. 2012-152858 for which it applied to Japan, and uses the content here.

In general, paste preparations such as toothpaste and hand cream are accommodated in a tube container and distributed as a product in a tube container. In this tube container, a pouring body having a spout is provided at one end of the flexible tube, and a flat seal-sealed seal is formed at the other end. This tube-contained product can easily pour out the contents from the spout when the barrel is pressed.
When processing the target site with a paste-form preparation, the paste-form preparation is poured from a tube container into an applicator such as a palm or toothbrush and applied to the target area, or the target area is brushed with an applicator. Or

  A product in a tube container is required to have a good handleability such that it can be easily poured into an applicator and is not easily dropped or scattered from the applicator. In addition, the dispensed contents are required to have dispersibility in order to speed up the effects. When the viscosity of the pasty preparation is increased, it becomes difficult to spill from the applicator, but it is difficult to be poured out from the tube container. In addition, the dispersibility is lowered, and the time until the effect is manifested becomes longer. On the other hand, when the viscosity is lowered, the dispersibility is improved, but the pasty preparation tends to sag from the applicator. Moreover, it becomes easy to scatter when the paste-form preparation is poured out.

  Conventionally, for such problems, paste-form preparations include polyacrylic acid, alkali metal salt of polyacrylic acid, polymethacrylic acid, alkali metal salt of polymethacrylic acid, fumed silica, carboxyvinyl polymer or low Attempts have been made to achieve compatibility between the handleability of the product in a tube container and the dispersibility of the contents by blending hydroxypropylcellulose having a degree of substitution. However, in the technology relating to the composition of the paste-form preparation, there are problems that the active ingredient is limited due to the compatibility problem of each component and that the storage stability is impaired.

  Moreover, the invention which aimed at the improvement of the handleability of the product in a tube container, and the dispersibility of the content by the device of the spout of a tube container is proposed. For example, at a predetermined position along the axial direction inside the nozzle, a plurality of blades inclined with respect to the axial direction are provided along the circumferential direction, and the drug product passes through the flow path between the blades in the discharge direction. On the other hand, a nozzle structure in which the preparation is discharged so as to draw an arc has been proposed (for example, Patent Document 1). In the invention of Patent Document 1, a high-viscosity preparation is smoothly and uniformly poured out from a container. In addition, a tube with a discharge port having a structure in which a fine hole (hole) is provided in the discharge port for squeezing the built-in material of the tube and an auxiliary cap in which a fine hole is provided in the tube discharge port has been proposed. (For example, Patent Document 2). According to the invention of Patent Document 2, it is intended to quickly dissolve the poured out contents.

JP 2007-253953 A JP 2003-261154 A

However, in the technique of Patent Document 1, it is not considered to use contents whose viscosity is lowered and dispersibility is increased. In the technique of Patent Document 1, for example, when the viscosity of the contents is lowered in order to increase dispersibility, the contents poured out from the respective channels overlap to form one lump, and the dispersibility of the contents Can not be increased.
Moreover, in the technique of Patent Document 2, although dispersibility of the contents can be improved, depending on the physical properties of the contents, the contents are poured out in various directions and are inferior in handleability.
Therefore, the present invention is directed to a product in a tube container that has good handleability and can improve the dispersibility of contents.

  The product in a tube container according to the present invention comprises a tube container including a tube body and a pouring body provided at the tip of the tube body, and paste-like contents are contained in the pouring body. Two or more extraction channels that extend toward and communicate with the inside and the outside of the tube body are formed, the axes of the extraction channels are parallel to each other, and any of the extraction channels A The relationship between the opening diameter R and the distance D between the extraction channel A and the other extraction channel B closest to the extraction channel A satisfies R / D = 0.1-5. The content is [area α (Pa / s) surrounded by a hysteresis loop drawn when shear stress is measured with a cone-plate viscometer] / [viscosity β measured with a rotary viscometer (Pa S)] = 20-70 is satisfied.

  The tube-contained product of the present invention has good handleability and can enhance the dispersibility of the contents.

It is a perspective view of the tube container concerning one Embodiment of this invention. It is a top view of the tube container concerning one Embodiment of this invention. It is a graph which shows the measurement result of the shear stress of the composition I for oral cavity. It is a graph which shows the measurement result of the shear stress of the composition II for oral cavity. It is a graph which shows the measurement result of the shear stress of the composition III for oral cavity. It is a graph which shows the measurement result of the shear stress of the composition IV for oral cavity.

One embodiment of the product in a tube container according to the present invention will be described below with reference to the drawings.
The tube-contained product of this embodiment is a tube container containing paste-like contents.

  The tube container 1 of FIGS. 1-2 is provided with the tube main body 10 and the extraction | pouring body 20 provided in the front-end | tip of the tube main body 10. As shown in FIG. The tube body 10 includes a cylindrical body 12 and a shoulder 14 formed at one end of the body 12, and an end (not shown) on the opposite side of the shoulder 14 is sealed. . The shoulder portion 14 is reduced in diameter toward the tip, and an extraction body 20 is provided at the tip.

  The extraction body 20 includes a flow path forming portion 22 and a cylindrical connecting tube portion 24 provided at the lower end, and the connecting tube portion 24 is connected to the shoulder portion 14. The tip surface 21 of the extraction body 20 is a flat surface. The flow path forming part 22 is formed by forming a first extraction flow path 30a, a second extraction flow path 30b, and a third extraction flow path 30c on a cylindrical member.

The first extraction flow path 30 a extends from the tube body 10 side (connection cylinder portion 24 side) to the distal end of the extraction body 20 and opens at the distal end surface 21 of the extraction body 20. It communicates with the inside of the tube main body 10 via.
The second extraction flow path 30b extends from the tube body 10 side (connection cylinder part 24 side) to the distal end of the extraction body 20, opens to the distal end surface 21 of the extraction body 20, and the inside of the connection cylinder part 24 It communicates with the inside of the tube main body 10 via.
The third extraction flow path 30c extends from the tube body 10 side (connection cylinder portion 24 side) to the distal end of the extraction body 20, opens to the distal end surface 21 of the extraction body 20, and the inside of the connection cylinder portion 24 It communicates with the inside of the tube main body 10 via.
That is, the first to third extraction flow passages communicate the inside and the outside of the tube main body 10.

  The material of the trunk | drum 12 should just have flexibility, for example, the monolayer film which consists of resin, such as polyolefin, such as polypropylene or polyethylene, polyester, such as a polyethylene terephthalate, or polyamide, and these monolayer films A multilayer film in which is laminated. The multilayer film may include a metal thin film such as aluminum or a vapor deposition film. If the tube main body 10 is formed of such a single layer film or a multilayer film, the contents are poured out by pressing the body portion 12, and the shape of the body portion 12 is released by releasing the pressing of the body portion 12. In order to restore, the contents in the tube body 10 can be easily and repeatedly poured out.

The width w1 of the tube body 10 is determined in consideration of the capacity of the tube container 1 and the like, for example, 1 to 6 cm. The width w <b> 1 is the width of the boundary portion between the body 12 and the shoulder 14 in the tube body 10, that is, the diameter of the shoulder 14.
The length of the tube body 10 can be determined in consideration of the capacity of the tube container 1 and is, for example, 3 to 20 cm.

  The thickness of the tube main body 10 is determined in consideration of the material of the tube main body 10 and the like, and is, for example, 100 to 700 μm. If it is less than the above lower limit value, the strength of the tube body 10 may be insufficient, and if it exceeds the upper limit value, the body part 12 may become too hard to easily pour out the contents.

  The shoulder 14 and the extraction body 20 are integrally formed by injection molding or the like. Examples of the material of the shoulder portion 14 and the extraction body 20 include a polyolefin such as polyethylene or polypropylene, or a resin such as polyester such as polyethylene terephthalate.

  The thickness of the shoulder portion 14 is determined in consideration of the rigidity and the like required for the shoulder portion 14 and is, for example, 0.3 to 3 mm.

  The diameter r1 of the extraction body 20 is determined in consideration of the opening diameters of the first to third extraction flow paths, the width w1 of the tube body 10, and the like, for example, 5 to 50 mm.

  The inner diameter of the connecting cylinder portion 24 is determined in consideration of the physical properties of the contents, and is, for example, 3 to 45 mm.

  The height h1 of the flow path forming part 22 is determined in consideration of the physical properties of the contents, and is preferably 1 to 8 mm, and more preferably 2 to 6 mm. If it is less than the said lower limit, it will become difficult to control the pouring direction of the content, the content will be poured out in various directions, and there exists a possibility that a handleability may not be made favorable. If it exceeds the above upper limit value, the handling property may not be further improved, and the pressure at the time of pouring out the contents becomes too high, which may make it difficult to pour out the contents.

The first extraction flow path 30a has the same diameter from the tube main body 10 side (connection tube portion 24 side) to the distal end surface 21, and the first opening surface 32a of the first extraction flow path 30a in the distal end surface 21. Is a true circle in plan view.
The axis P1 of the first extraction flow path 30a is perpendicular to the tip surface 21. The term “perpendicular” means that an inferior angle formed by the axis P1 and the tip surface 21 is 87 to 90 °. The inferior angle formed by the axis P1 and the tip surface 21 is preferably more than 89.5 ° and not more than 90 °.
The opening diameter R1 of the first extraction flow path 30a is determined in consideration of the physical properties of the contents, and is preferably 0.3 to 6 mm, more preferably 1 to 5 mm, and still more preferably 1 to 4 mm. If opening diameter R1 is less than the said lower limit, the pressure at the time of pouring out the contents will become too high, and there is a possibility that it will become difficult to pour out the contents. If the value exceeds the upper limit, the dispersibility of the dispensed contents may be reduced, or the dispensing direction of the contents may be difficult to control, and the handleability may be degraded.

The distance from the periphery of the first opening surface 32a to the periphery of the second opening surface 32b, that is, the distance D1 between the first extraction channel 30a and the second extraction channel 30b is, for example, 0. 5-6 mm is preferable and 1-5 mm is more preferable. If the distance D1 is less than the lower limit, the dispersibility of the dispensed contents may be reduced. If the distance D1 is greater than the above upper limit value, it becomes difficult to control the direction in which the contents are poured out, and the handleability may be reduced.
The distance from the periphery of the first opening surface 32a to the periphery of the third opening surface 32c, that is, the distance D3 between the first extraction channel 30a and the third extraction channel 30c is the same as the distance D1. It is.

The second extraction flow path 30b has the same diameter from the tube main body 10 side (connection tube portion 24 side) to the distal end surface 21, and the second opening surface 32b of the second extraction flow path 30b in the distal end surface 21. Is a true circle in plan view.
The axis P2 of the second extraction flow path 30b is perpendicular to the tip surface 21. The minor angle formed between the axis P2 and the tip surface 21 is the same as the minor angle formed between the axis P1 and the tip surface 21.
The opening diameter R2 of the second extraction channel 30b is the same as the opening diameter R1.
The distance from the periphery of the second opening surface 32b to the periphery of the third opening surface 32c, that is, the distance D2 between the second extraction channel 30b and the third extraction channel 30c is the same as the distance D1. It is.

The third extraction flow path 30c has the same diameter from the tube body 10 side (connecting cylinder portion 24 side) to the distal end surface 21, and the third opening surface 32c of the third extraction flow path 30c in the distal end surface 21. Is a true circle in plan view.
The axis P3 of the third extraction flow path 30c is perpendicular to the tip surface 21. The minor angle formed between the axis P3 and the tip surface 21 is the same as the minor angle formed between the axis P1 and the tip surface 21.
The opening diameter R3 of the third extraction channel 30c is the same as the opening diameter R1.

The first to third extraction channels include an opening diameter R of the arbitrary extraction channel A and the other extraction channels closest to the extraction channel A and the extraction channel A. The relationship with B and the distance D satisfies R / D = 0.1-1. That is, the first to third pouring channels are [opening diameter R of pouring channel A] / [distance D between pouring channel A and pouring channel B] (hereinafter R / D ratio). May be 0.1 to 5).
In this embodiment, when the 1st extraction flow path 30a is the extraction flow path A and the 2nd extraction flow path 30b is the extraction flow path B, R1 / D1 is 0.1-5. It is preferable that it is 0.3-3. If R1 / D1 is less than the above lower limit value, the first opening surface 32a and the second opening surface 32b are too far apart from each other, so that the direction in which the contents are poured out cannot be controlled, and the handleability becomes insufficient. If R1 / D1 exceeds the above upper limit value, the first opening surface 32a and the second opening surface 32b are too close to each other, and the poured out contents become one lump, resulting in poor dispersibility of the contents. It will be enough.
When the first extraction channel 30a is the extraction channel A and the third extraction channel 30c is the extraction channel B, R1 / D3 is the same as R1 / D1.
When the second pouring channel 30b is the pouring channel A and the first pouring channel 30a is the pouring channel B, R2 / D1 is the same as R1 / D1.
When the second extraction channel 30b is the extraction channel A and the third extraction channel 30c is the extraction channel B, R2 / D2 is the same as R1 / D1.
When the third pouring channel 30c is the pouring channel A and the second pouring channel 30b is the pouring channel B, R3 / D2 is the same as R1 / D1.
When the third extraction channel 30c is the extraction channel A and the first extraction channel 30a is the extraction channel B, R3 / D3 is the same as R1 / D1.
In the present embodiment, the first to third extraction channels are formed such that R / D = 0.1-1.

  The opening diameters R1 to R3 may be the same as or different from each other. It is preferable that the opening diameters R1 to R3 are the same from the viewpoint that the contents can be uniformly poured out from the first to third dispensing channels and the dispensing direction of the contents can be controlled better.

  The distances D1 to D3 may be the same or different from each other. The distances D1 to D3 are preferably the same from the viewpoint that the contents can be uniformly poured out from the first to third dispensing flow paths and the dispensing direction of the contents can be controlled better.

The axis P1, the axis P2, and the axis P3 are parallel to each other. Since the axes P1 to P3 are parallel to each other, the handleability when the contents are poured out is good, and the dispersibility of the poured out contents can be enhanced.
“Parallel” means a relationship that can be visually recognized as parallel. For example, when the two axes are on the same plane, the minor angle formed by the two axes is 10 ° or less, preferably 3 ° or less, and more preferably 0.5 ° or less. Alternatively, when the two axes are in a twisted position, the minor angle formed by the two axes when viewed so that the two axes intersect each other is preferably 10 ° or less, and preferably 3 ° or less, More preferably, it is 0.5 ° or less.

In the present embodiment, the first opening surface 32 a, the second opening surface 32 b, and the third opening surface 32 c are annularly arranged around the center O of the tip surface 21. That is, the axis line P1, the axis line P2, and the axis line P3 are located in the virtual circle C1 with the center O as the center.
The radius r2 of the virtual circle C1 is determined in consideration of the size of the first to third opening surfaces, and is preferably 2 to 5 mm, for example. When the radius r2 is less than the lower limit value, the contents poured out from the respective pouring channels tend to become one lump, and the dispersibility of the poured out contents may be lowered. When the radius r2 is more than the upper limit, it may be difficult to control the content dispensing direction.

The angle θ1 formed by the line Q1 connecting the axis P1 and the center O and the line Q2 connecting the axis P2 and the center O is preferably 100 to 140 °, and more preferably 110 to 130 °.
The angle θ2 formed by the line Q2 and the line Q3 connecting the axis P3 and the center O is preferably 100 to 140 °, and more preferably 110 to 130 °.
The angle θ2 formed by the line Q1 and the line Q3 is preferably 100 to 140 °, and more preferably 110 to 130 °.
The angles θ1 to θ3 are preferably the same as each other. If the angles θ1 to θ3 are the same, the handleability when the contents are poured out is good, and the dispersibility of the poured out contents can be enhanced. That the angles θ1 to θ3 are the same means that the difference between any two angles selected from the angles θ1 to θ3 is within a range of −10 ° to 10 °.

  The tube container 1 of this embodiment is manufactured according to the conventionally well-known manufacturing method of a tube container. For example, first, a member in which the shoulder portion 14 and the extraction body 20 are integrally formed (hereinafter referred to as “extraction member”) is obtained by injection molding or the like. A sheet-like base material is formed into a cylindrical shape to form a body portion 12, or a tubular base material obtained by inflation molding is used as a body portion 12, and an extraction member is heat-sealed to one end of the body portion 12. Or glue. By attaching a lid (not shown) to the extraction body 20, the extraction body 20 is provided at the tip of the tube main body 10, and the tube container 1 having an open rear end is obtained. The lid is not particularly limited, and may be one that externally fits to the extraction body 20 or may be screwed to the extraction body 20.

  The content may be in the form of a paste, and examples thereof include oral compositions such as dentifrices, cosmetics, foods, and the like. The composition of the content is not particularly limited as long as the later-described α / β ratio is 20 to 70.

  For example, the composition of the oral composition is a combination of conventionally known materials such as cleaning agents, surfactants, binders, wetting agents, fragrances, pigments, pH adjusting agents, sweeteners, and other active ingredients. Is mentioned.

As cleaning agents, silica-based abrasives such as silica gel, precipitated silica, aluminosilicate, zirconosilicate, calcium pyrophosphate, calcium carbonate, aluminum hydroxide, alumina, magnesium carbonate, tribasic magnesium phosphate, zeolite, zirconium silicate, Examples thereof include hydroxyapatite and synthetic resin abrasives. These cleaning agents may be used alone or in a combination of two or more.
Although content of the cleaning agent in the composition for oral cavity is not specifically limited, It determines suitably in the range of 0-60 mass%.

Examples of the surfactant include an anionic surfactant, a cationic surfactant, a nonionic surfactant, and an amphoteric surfactant. Specific examples of anionic surfactants include sodium lauryl sulfate, sodium myristyl sulfate, sodium N-lauroyl sarcosinate, sodium N-myristol sarcosine, sodium dodecylbenzene sulfonate, sodium hydrogenated coconut fatty acid monoglyceride monosulfate, Examples include sodium lauryl sulfoacetate, sodium α-olefin sulfonate, sodium N-palmitoyl glutamate, sodium N-methyl-N-acyl taurate or sodium N-methyl-N-acylalanine. Specific examples of the cationic surfactant include distearylmethylammonium chloride or stearyldimethylbenzylammonium chloride. Specific examples of the nonionic surfactant include sugar alcohol fatty acid esters such as sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester or sucrose fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester. Or an ether type activator such as polyhydric alcohol fatty acid ester such as polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene copolymer, polyoxyethylene alkylphenyl ether or polyoxyethylene hydrogenated castor oil, And fatty acid alkanolamides such as lauric acid diethanolamide. Specific examples of amphoteric surfactants include N-alkyldiaminoethylglycine such as 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolium betaine, N-lauryldiaminoethylglycine, N-myristyldiaminoethylglycine, etc. Alternatively, sodium N-alkyl-1-hydroxyethylimidazoline betaine and the like can be mentioned. These surfactants may be used singly or in combination of two or more.
The content of the surfactant in the oral composition can be determined in consideration of the type of the surfactant, and is appropriately determined in the range of 0.1 to 10% by mass, for example.

Examples of the binder include cellulosic binders, carrageenan, xanthan gum, guar gum, sodium alginate, montmorillonite, gelatin, sodium polyacrylate, agar, gellan gum or pectin. Specific examples of the cellulose binder include carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxymethylethylcellulose, methylcellulose, or cationized cellulose. These binders may be used individually by 1 type, and may be used in combination of 2 or more type.
The content of the binder in the oral composition can be determined in consideration of the type of the binder and the like, and is appropriately determined in the range of, for example, 0.1 to 5% by mass.

Examples of the wetting agent include polyhydric alcohols. Specific examples of the polyhydric alcohol include propylene glycol, pentylene glycol, hexylene glycol, octylene glycol, polyethylene glycol having a molecular weight of 200 to 6000, ethylene glycol, 1,3-butylene glycol, and reduced starch. Saccharified products, sorbit, glycerin, xylitol, erythritol and the like can be mentioned. These wetting agents may be used individually by 1 type, and may be used in combination of 2 or more type.
The content of the humectant in the oral composition can be determined in consideration of the type of humectant and the like, and is appropriately determined in the range of, for example, 5 to 70% by mass.

In the contents according to the present invention, the thixotropic property and the viscosity have a predetermined relationship.
The thixotropic property of the contents is evaluated by an area (hereinafter also referred to as a hysteresis area) α (Pa / s) surrounded by a hysteresis loop drawn when shear stress is measured with a cone plate viscometer. Hysteresis loop is shown by the relationship of shear stress to shear rate. Ascending curve drawn when shear rate is increased by an arbitrary value and descending curve drawn when shear rate is lowered by an arbitrary value. It consists of. The content having thixotropy has a rising curve and a falling curve that do not overlap, and the hysteresis area α is measured.
In the present specification, the hysteresis area α is measured using a cone plate viscometer (Rheo Stress RS50, manufactured by HAAKE) under the following measurement conditions.

<Measurement conditions of hysteresis area α>
Sensor C35 / 4 degrees (cone plate type sensor 35φ, angle 4 degrees).
Shear rate γ = 0 to 50 (1 / s).
Measurement time: 120 s.
Measurement temperature: 25 °.

The hysteresis area α is preferably 200 to 5000 Pa / s, and more preferably 500 to 3000 Pa / s. When the hysteresis area α is less than the above lower limit, the dispersibility of the contents is lowered, the contents are likely to sag, and the handleability may not be improved. If the hysteresis area α exceeds the above upper limit value, it becomes difficult to control the direction in which the contents are poured out, and the handleability may not be improved.
The hysteresis area α is adjusted by the type and content of the binder in the contents.

The viscosity β of the content is not particularly limited, but is preferably 15 to 65 Pa · s, and more preferably 20 to 60 Pa · s. When the viscosity β is less than the above lower limit, the fluidity of the content is excessively increased, and it becomes difficult to control the direction in which the content is poured out, and the content β tends to sag from the applicator. If the value exceeds the upper limit, the fluidity of the content becomes too low, the dispersibility of the poured out content decreases, and the dispensing direction of the content becomes difficult to control.
In the present specification, the viscosity β is a value measured under the following conditions by a BH type rotary viscometer (TVB-10, manufactured by Toki Sangyo Co., Ltd.).
The viscosity β is adjusted by the type and content of the binder in the contents.

<Measurement conditions>
Rotor: No. 7.
Number of revolutions: 20 rpm.
Measurement temperature: 25 ° C.
Reading of values: 180 seconds after the start of rotor rotation.

  The hysteresis area α / viscosity β (hereinafter sometimes referred to as α / β ratio) in the contents is 20 to 70, and preferably 25 to 50. When the α / β ratio is less than the above lower limit, the viscosity of the content is too high, making it difficult to increase the dispersibility of the content and making it difficult to pour the content. When the α / β ratio exceeds the above upper limit, the viscosity of the contents becomes too low, and when the contents are poured out, the contents are scattered, making it difficult to control the pouring direction and improving the handleability. Absent.

  The product in a tube container is manufactured according to a conventionally known method for manufacturing a product in a tube container. For example, after filling the tube main body 10 with the contents from the opened rear end, the rear end of the tube main body 10 is sealed to obtain a tube container 1 containing the contents (product containing the tube container).

Next, the usage method of the product in a tube container is demonstrated.
The lid is removed from the dispensing body 20, the distal end surface 21 is brought close to an applicator (for example, a toothbrush), and the body portion 12 is pressed. When the body part 12 is pressed, the contents flow through the connecting cylinder part 24 and the first to third extraction flow paths in order, and are discharged from the first to third opening surfaces. Then, the contents are placed on the applicator in a shape in which a thing having a thickness substantially equal to the opening diameter of the first to third extraction channels is partially in contact. Since the content placed on the applicator has a large surface area relative to the volume, for example, when cleaning the inside of the oral cavity, the content is quickly dispersed, and the effect expression can be accelerated.

According to this embodiment, since the first to third extraction flow paths are parallel to each other, the contents are extracted without spreading outward. For this reason, handling property becomes favorable.
In addition, since the R / D ratio of the first to third extraction channels is 0.1 to 5 and the α / β ratio of the contents is 20 to 70, the first to third openings The contents poured out from the surface are put on the applicator without becoming one lump. For this reason, the dispersibility of the contents increases.

  The tube-contained product of this embodiment is useful for a container-containing oral composition, cosmetic, or food. Among them, it is particularly useful for a dentifrice product that is poured into a narrow place such as a flocked portion of a toothbrush and then rapidly dispersed in the oral cavity.

  The present invention is not limited to the embodiment described above. In the above-described embodiment, three pouring channels are formed in the pouring body, but the present invention is not limited to this, and the number of pouring channels may be two or four. It may be the above. However, from the viewpoint of improving the handleability and further improving the dispersibility of the contents, the number of the extraction channels is preferably 3 to 8, and more preferably 3 to 5.

  In FIG. 2, the axes of the first to third extraction channels are located in a virtual circle drawn from the center of the tip surface of the extraction body, that is, the center of the tip surface and the extraction channel The center of gravity of the figure whose apex is the center of the opening surface coincides. However, the present invention is not limited to this, and the center of the tip surface and the center of gravity of the figure whose apex is the center of the opening surface of the extraction channel may be shifted. However, from the viewpoint of making the thickness and amount of the contents to be poured out from each pouring channel as much as possible, the center of the tip surface and the center of gravity of the figure having the apex at the center of the opening surface of the pouring channel are: It is preferable that they match.

  In FIG. 2, the first to third opening surfaces are arranged on the ring, but the present invention is not limited to this, and the first to third opening surfaces may be arranged on a straight line. Moreover, when four or more extraction flow paths are formed, one opening surface may be formed in the center of a front end surface, and the other opening surface may be arrange | positioned so that this opening surface may be enclosed.

  In the above-described embodiment, the first to third extraction flow paths have the same diameter from the tube main body side to the tip surface, but the present invention is not limited to this, and the tube main body side to the tip surface. The diameter may be gradually reduced toward the opposite side, or the diameter may be gradually increased from the tube main body side toward the distal end surface. However, from the viewpoint of better controlling the dispensing direction of the contents, the dispensing flow path may have the same diameter from the tube body side to the distal end surface, or may be gradually reduced in diameter from the tube body side to the distal end surface. preferable.

  In the above-described embodiment, the first to third opening surfaces are perfectly circular in a plan view. However, the present invention is not limited to this, and the first to third opening surfaces are a planar view such as a triangle or a quadrangle. A polygon may be sufficient and a planar view ellipse may be sufficient. When the opening surface is other than a perfect circle in plan view, the opening diameter is a diameter of a circle circumscribing the opening surface.

  In the above-described embodiment, the first to third extraction channels are formed so that R / D = 0 to 5 with each other. However, the present invention is not limited to this and is the closest In the relationship between the pouring channels to be performed, R / D may be 0.1 to 5. For example, when the extraction channel closest to the first extraction channel is the second extraction channel, the first extraction channel is R in relation to the second extraction channel. If /D=0.1-5, R / D = 0.1-5 may not be satisfied in relation to the third extraction flow path.

  In the above-described embodiment, the shoulder portion is formed on the tube body, but the present invention is not limited to this. For example, the shoulder portion is not formed on the tube body, and the same diameter as the inner diameter of the front end of the trunk portion is used. The protruding body may be provided at the front end of the trunk.

  In the above-described embodiment, the pouring body and the shoulder portion are integrally formed. However, the present invention is not limited to this, and the pouring body and the shoulder portion may be respectively formed and provided on the trunk portion. Alternatively, the body portion and the shoulder portion may be integrally formed, and an extraction body may be provided on this.

  In the above-described embodiment, the distal end surface of the extraction body is a flat surface, but the present invention is not limited to this, and the distal end surface may be a convex surface or a concave surface.

In the above-described embodiment, the flow path forming portion is a columnar member formed with the pouring flow path, but the present invention is not limited to this, and the flow path forming portion is a polygonal columnar member. A pour-out channel may be formed.
In the above-mentioned embodiment, although the connection cylinder part is provided in the lower end of the flow-path formation part, this invention is not limited to this, The connection cylinder part does not need to be provided.
In the above-described embodiment, the connecting tube portion is cylindrical, but the connecting tube portion may be determined according to the shape of the flow path forming portion, and may be, for example, a polygonal tube shape.

  In the above-described embodiment, the body portion is cylindrical. However, the present invention is not limited to this, and the body portion may be a polygonal cylinder, and the cross section is a flat shape such as an ellipse. Also good.

  EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated in detail, this invention is not limited by the following description.

(Preparation Examples 1-4) Preparation of Oral Compositions I-IV According to the composition shown in Table 1, each component was mixed with a three-one motor to obtain an oral composition as a content. About each oral composition, the shear stress was measured and the hysteresis area (alpha) was calculated | required from the result. The measurement result of the shear stress of each composition for oral cavity is shown in FIGS. 3 to 6 are graphs in which the vertical axis represents shear stress τ (Pa) and the horizontal axis represents shear rate γ (1 / s). 3 shows the measurement result of the oral composition I, FIG. 4 shows the measurement result of the oral composition II, FIG. 5 shows the measurement result of the oral composition III, and FIG. 6 shows the measurement result of the oral composition IV.
Separately, the viscosity β was measured for each oral composition. Table 1 shows the measurement results of the hysteresis area α and the viscosity β.

(Examples 1-4, Comparative Examples 1-2)
By the following procedure, the tube container containing product in which the composition for oral cavity was accommodated in the tube container similar to the tube container 1 shown in FIGS.
A pouring member in which the pouring body having the specifications shown in Tables 2 and 5 and the shoulder are integrated by injection molding (diameter r1: 14 mm of the pouring body, height h1: 2 mm of the flow path forming portion, (Made of polypropylene). This extraction body has the same opening diameters R1 to R3 in FIG. 2 and the same distances D1 to D3.
38 mm diameter cylindrical laminated tube (low density polyethylene 72 μm / ethylene / acrylic acid copolymer resin 90 μm / aluminum 10 μm / ethylene / acrylic acid copolymer resin 35 μm / linear low density polyethylene 50 μm, thickness 257 μm, Dainippon A body part was formed by Printing Co., Ltd., and a pouring member was welded to one open end of the body part. According to Table 2 and Table 5, from the other open end of the trunk, the composition for oral cavity shown in Table 2 and Table 5 is filled, and the other open end is sealed, and each tube container is contained. Got the product.
About the obtained tube container containing product, intraoral dispersibility, extraction controllability, and handleability were evaluated, and the results are shown in Tables 2 and 5.

(Examples 5-11, Comparative Examples 3-4)
According to the specifications shown in Tables 3 to 5, a tube-contained product was obtained in the same manner as in Example 1 except that five extraction channels were arranged in an annular shape. About the obtained tube container containing product, oral dispersibility, extraction controllability, and handleability were evaluated, and the result is shown to Tables 3-5.

(Example 12)
A tube container product is obtained in the same manner as in Example 1 except that the opening diameter R1 is 1 mm, the opening diameter R2 is 2 mm, the opening diameter R3 is 3 mm, the distance D1 is 2 mm, the distance D2 is 1 mm, and the distance D3 is 3 mm. It was. In this tube container, the R / D ratio (R1 / D1) in the first extraction channel is 0.5, the R / D ratio (R2 / D2) in the second extraction channel is 2, and the third The R / D ratio (R3 / D2) in the extraction channel is 3.
About the obtained tube container containing product, oral dispersibility, extraction controllability, and handleability were evaluated, and the results are shown in Table 4.

(Evaluation method)
<Oral dispersibility>
Ten monitors poured the composition for oral cavity into the toothbrush from the tube-contained products of each example, and the touch when the oral cavity was cleaned was evaluated according to the following evaluation criteria. The average of 10 evaluation points was classified into the following criteria.

≪Evaluation criteria≫
4 points: A feeling of dispersal of the oral composition in the oral cavity is very felt.
3 points: Feels that the composition for oral cavity is dispersed in the oral cavity.
2 points: Feels that the composition for oral cavity is dispersed in the oral cavity.
1 point: Feels that the composition for oral cavity is dispersed in the oral cavity.

<< Criteria >>
A: An average score of 3.5 points or more.
B: The average score is 3.0 or more and less than 3.5.
C: The average score is 2.0 or more and less than 3.0.
D: The average score is less than 2.0 points.

<Discharge controllability>
Two parallel lines (separation distance: 1 cm) were drawn on the paper, and this was used as the measurement paper. From the tube container product of each example, the composition for oral cavity was poured out in the length of 2 cm along the said parallel line between the two parallel lines drawn on the measurement paper. At that time, if the oral composition protruded from the parallel lines, the protruding oral composition and the distance to the adjacent line (extruding distance) were measured. When the oral composition did not protrude from the parallel lines, the protruding distance was set to 0 mm. This operation was repeated three times, and the average value was obtained. As the average value of the protruding distance approaches 0, it can be determined that the dispensing direction is better controlled.

<Handability>
Ten touches evaluated the touch when the composition for oral cavity was poured into the toothbrush from the tube-contained products of each example according to the following evaluation criteria. The average of 10 evaluation points was classified into the following criteria.

<< Criteria >>
4 points: It is very easy to put the oral composition on a toothbrush.
3 points: The composition for oral cavity is easily placed on a toothbrush.
2 points: The composition for oral cavity is slightly placed on a toothbrush.
1 point: It is difficult to place the oral composition on a toothbrush.

<< Criteria >>
A: An average score of 3.5 points or more.
B: The average score is 3.0 or more and less than 3.5.
C: The average score is 2.0 or more and less than 3.0.
D: The average score is less than 2.0 points.

As shown in Tables 2 to 5, in Examples 1 to 12 to which the present invention is applied, the intraoral dispersibility is “B” or “A”, the dispensing controllability is 0.6 mm or less, and the handleability is “B”. Or “A”. Among them, in Examples 2-3 in which the number of the extraction channels is three and the R / D ratio is 0.3 to 1, the number of the extraction channels is three and the R / D ratio is 0.1. Compared with a certain Example 1, the handleability was good.
In Examples 2 to 3, the dispersibility in the oral cavity was better than that in Example 4 in which there were three extraction channels and the R / D ratio was 5.
In Comparative Example 1 in which the R / D ratio was 0.04, the handleability was “D”. Comparative Example 3 using an oral composition having an α / β ratio of less than 20 and Comparative Example 4 using an oral composition having an α / β ratio exceeding 70 have an oral dispersibility of “C”, The handleability was “D”.
From these results, it was found that by applying the present invention, the handleability of the product in the tube container can be improved and the dispersibility of the contents can be improved.

DESCRIPTION OF SYMBOLS 1 Tube container 10 Tube main body 20 Extraction body 21 Tip surface 30a 1st extraction flow path 30b 2nd extraction flow path 30c 3rd extraction flow path 32a 1st opening surface 32b 2nd opening surface 32c Third opening surface R1, R2, R3 Aperture diameter D1, D2, D3 Distance P1, P2, P3 Axis

Claims (1)

In a tube container provided with a tube main body and a pouring body provided at the tip of the tube main body, a paste-like content is contained in a tube container-containing product,
In the extraction body, two or more extraction passages extending toward the tip and communicating the inside and the outside of the tube body are formed,
The axes of the extraction channels are parallel to each other,
The relationship between the opening diameter R of the arbitrary extraction flow path A and the distance D between the extraction flow path A and the other extraction flow path B closest to the extraction flow path A is R / D = 0.1-5 is satisfied,
The content is [area α (Pa / s) surrounded by a hysteresis loop drawn when shear stress is measured with a cone-plate viscometer] / [viscosity β measured with a rotary viscometer (Pa · s)] = Product in a tube container satisfying 20 to 70.

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