JP3044602U - Tube container for filling mucus products - Google Patents

Abstract

(57) [Abstract] (with correction) [Problem] To provide a tube container that can completely prevent organic solvents and fragrances from escaping outside and oxygen in the air from entering the container and oxidizing the product. Offer. SOLUTION: A thin, flexible, heat-sealable cylinder body 11 having a shoulder mouth cylinder frame 12 attached to a front end and a rear end sealed.
A rigid cylindrical tube head 14 of a saponified ethylene-vinyl acetate copolymer which has a small-diameter squeezing port 15 at the tip and is attached to the filling port of the shoulder barrel frame; and a squeezing port 15 of the tube head. It comprises a hard cap 17 made of polyolefin resin which is removably closed, and the front end 11 'of the cylinder body 11 is fitted to the outer periphery of the shoulder and mouth cylinder frame to form a shoulder 1
2 ', the conical surface 16' corresponding to the shoulder of the shoulder barrel is provided at the lower end of the tube head. When the tube head is mounted over the filling port of the shoulder barrel, the conical surface at the lower end of the tube head is provided. Abuts the shoulder 12 'of the shoulder barrel via the front end 11' of the barrel secured to the shoulder barrel.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The idea is to fill adhesives containing organic solvents such as toluene, methyl-ethyl-ketone, etc., caulks and other mucous products, and mucous cosmetics such as creams containing fragrances. The present invention also relates to a tube container for filling a mucus product, which reliably prevents oxygen in the air from entering the container.

[0002]

[Prior art]

 The applicant of the present invention has attached a rigid synthetic resin sleeve frame having a filling port having a diameter larger than that of a mucus product filling nozzle at the top of a conical shoulder, and attaching the above-mentioned shoulder cylinder frame to the front end and sealing the rear end. A thin, flexible, heat-sealable synthetic resin cylindrical body, and a synthetic resin hard cylindrical shape having a small-diameter squeeze port at the tip and attached to the filling port of the shoulder port frame. In a tube container for filling a mucus product, comprising a tube head and a hard cap made of a synthetic resin that removably closes a squeeze port of the tube head, the tube head is abbreviated as EVAL having excellent gas barrier properties. Molded product of saponified ethylene vinyl acetate copolymer (trade name: EVAL, manufactured by Kuraray Co., Ltd.), molded body of polyolefin resin for the shoulder barrel frame and cap, and cylinder body on both inside and outside of EVAL A tube container for filling mucus products, which has a five-layer structure in which a polyolefin resin layer is provided via a polyolefin-based adhesive and has the front end of the barrel fitted to the outer periphery of the shoulder barrel frame and fixed around the shoulder. No. 8-288142. With this tube container, the mucus product can be easily filled into the container from the filling port of the shoulder barrel frame. Also, since expensive EVAL is not used for the shoulder barrel frame and cap, the cost of the tube container is reduced accordingly.

[0003]

[Problems to be solved by the invention]

 In the tube container of the above-mentioned prior proposal, the front end of the cylinder body is fitted around the outer periphery of the shoulder barrel frame and is fixed around the shoulder. The lower end is in direct contact with the shoulder at the inner periphery of the front end of the cylinder body secured around the shoulder barrel frame shoulder, and is secured around the outer periphery of the lower end of the tube head and around the shoulder barrel shoulder. A small annular gap is formed between the inner periphery of the front end of the body and the shoulder frame of polyolefin resin having low gas barrier properties, for example, polyethylene. Then, the organic solvent and fragrance contained in the product filled in the container escape from the exposed part of the shoulder barrel frame, and oxygen in the air enters the container from the exposed part of the shoulder barrel frame. However, if stored for a long period of time, the product will harden in the container, will be oxidized, deteriorate, and lose its scent.

[0004]

[Means for Solving the Problems]

 The present invention is improved to solve the above-mentioned problems, and comprises a rigid shoulder-port frame made of a polyolefin resin having a filling port having a diameter larger than a filling nozzle of a mucus product at the top of a conical shoulder; It has a five-layer structure in which a polyolefin resin layer is provided on both the inner and outer surfaces of a saponified ethylene-vinyl acetate copolymer via a polyolefin-based adhesive. The shoulder barrel frame is attached to the front end, and the rear end is sealed. A flexible and heat-sealable cylindrical body, a rigid cylindrical tube head of a saponified ethylene vinyl acetate copolymer having a small-diameter squeeze port at the tip and attached to a filling port of the shoulder barrel frame; The tube head is made of a hard cap made of polyolefin resin that removably closes the squeezing opening of the tube head. The front end of the tube body is fitted around the outer periphery of the shoulder and mouth tube frame and is fixed around the shoulder to be fixed to the tube. When the tube head is mounted over the filling opening of the shoulder barrel, the conical surface at the lower end of the tube head is placed around the shoulder of the shoulder barrel. It is characterized in that it comes into contact with the shoulder of the shoulder barrel via the front end of the fixed barrel.

[0005]

[Embodiment of the invention]

 It is preferable that the outer diameter of the lower end of the tube head be equal to or larger than the outer diameter of the shoulder of the shoulder barrel frame.

[0006]

【Example】

 In each figure, 11 is a thin, flexible, heat-sealable synthetic resin cylinder, 12 is a synthetic resin hard shoulder barrel frame having a filling port 13 larger in diameter than the mucus product filling nozzle, 14 Has a small-diameter squeeze port 15 at its tip, and is a rigid tubular tube head made of synthetic resin to be attached to the filling port 13 of the shoulder barrel frame, and 17 is detachably mounted over the squeeze port 15 of the tube head. Shows a hard cap made of synthetic resin.

The cylinder body 11 has a five-layer structure in which an adhesive layer, for example, a polyethylene layer (manufactured by Mitsui Petrochemical Co., Ltd., trade name: ADMER) is provided on both inner and outer surfaces of the above-mentioned EVAL via an adhesive layer. Even when a sheet having a thickness of about 0.15 to 0.18 mm is extruded into a cylindrical shape by an extrusion molding method, a flexible sheet having the above five-layer structure is formed, and this is rounded into a cylindrical shape, and the seam overlapping vertically is heat-sealed. As a result, a thin flexible cylinder may be formed.

[0008] The shoulder opening barrel frame 12 fixed to the front end of the barrel body is formed of polyethylene in the same manner as polyethylene located on the inner surface of the barrel body. These polyethylenes may be any of low density polyethylene (LD / PE), high density polyethylene (HD / PE), and linear low density polyethylene (L-LD / PE). The shoulder cap frame 12 has a filling port 13 at the top of a conical shoulder 12 ', and a male screw is provided on the outer periphery of the filling port.

The tube head 14 is a molded product of EVAL, and has a large-diameter cylindrical portion 16 which fits outside the filling port 13 below, and has a male screw of the filling port on the inner periphery of the cylindrical portion. A female screw is provided for screw engagement. The outer diameter of the cylindrical portion 16 is the same as or slightly larger than the outer diameter of the shoulder 12 'of the shoulder barrel frame (the same outer diameter in the figure), and the lower end has a conical surface 16' corresponding to the shoulder 12 '. It has become. The tube head 14 has a low-profile upward conical portion 14 ′ above the cylindrical portion 16, and a tapered outlet 15 having a diameter decreasing upward from the top of the conical portion and having an external thread on the outer periphery. stand.

The cap 17 is a molded product of polyethylene, and comprises a concentric outer cylinder 17a and an inner cylinder 17b connected at the upper end, and the inner periphery of the inner cylinder 17b corresponds to the tapered squeezing opening 15 of the tube head. It has a female thread that is tapered and threadedly engages with an external thread on the outer periphery of the squeeze port. On the upper surface of the inner cylinder 17b, a thick and long downward projection 17 'which protrudes from above at the upper end of the squeeze port 15 is provided. When the inner cylinder 17b of the cap is screwed in over the squeeze port and attached, the protrusion 17 'enters the upper end of the squeeze port 15 from above, and at the same time, the upper end of the squeeze port 15 has the protrusion 17'. The squeeze port is sealed between the upper end of the inner cylinder 17b and the squeeze port. The cap is made of polyethylene having low gas barrier properties. The upper wall and the cylindrical wall of the inner cylinder 17b are thick, and the upper wall is provided with a thick and long downward projection 17 '. Rushes into the upper end of the squeeze port 15 from above, and at the same time, the upper end of the squeeze port cuts between the protrusion 17 'and the upper end of the inner cylinder 17b to seal the squeeze port. In addition, due to the thickness of the cylindrical wall and the thickness of the thick and long projection 17 ', sufficient gas barrier properties are provided.

For example, the shoulder barrel frame 12 is separately injection-molded with low-density polyethylene, the tube head 14 is molded with EVAL, the cap 17 is molded with polyethylene, and the shoulder 12 ′ of the shoulder barrel frame is formed with the front end of the barrel 11. Then, the front end 11 ′ of the barrel 11 and the shoulder 12 ′ of the shoulder barrel are roasted with a gas flame, and the front end 11 ′ of the barrel 1 is fallen onto the shoulder 12 ′. The front end 11 'of the cylindrical body 11 which has been melted and fixed to the shoulder 12' by being fused and fixed to the shoulder 12 'is then sealed with a high-frequency seal, a high-frequency induction heating seal, an ultrasonic seal, an impulse if necessary. It may be bitten on the shoulder 12 'while pressing the shoulder by means of heat sealing or the like to make a notch.

Further, as described above, a thin and flexible tube of a required length formed by extruding into a cylindrical shape, rolling a flexible sheet into a cylindrical shape, and heat-sealing the seam overlapping the upper and lower portions. As shown in FIG. 3, the body 11 has a circular cross-section core 21 having the same inner diameter and outer diameter as the cylindrical body, and having an inner mold 22 for forming the inner surface of the filling port 13 and the shoulder 12 ′ of the shoulder opening frame. This is mounted between a left and right split molds 23L, 23R having a molding portion 24 for molding the outer surfaces of the filling port 13 and the shoulder 12 'of the shoulder barrel frame, and a surrounding portion 25 surrounding the outer periphery of the barrel body. Then, molten polyethylene is injected into the cavity 23 for forming the shoulder barrel frame from the gate 26 provided on one of the left and right split dies, and the front end 11 ′ of the barrel 11 is moved to the shoulder of the shoulder barrel frame 12. 12 ′, the shoulder barrel frame is formed by fusing and fusing to form a barrel body 1 1, the split sleeves 23L and 23R may be opened, and the core 21 may be pulled out and taken out.

After the shoulder / mouth cylinder frame 12 is fixed in front of the cylinder body 11 in this manner, the rear end of the cylinder body is folded to be flattened into a single character, and the inner and outer polyethylene layers of the cylinder body are heat-sealed and closed to close. As shown in FIG. 2, a mucus product, for example, a filling nozzle 27 for an adhesive 28 is inserted into the inner periphery of the filling port 13 of the upwardly facing shoulder opening frame, and the mucus enters the inside of the cylinder body 11 from the filling nozzle. Inject and fill a predetermined amount of product. Then, the cylindrical portion 16 of the tube head is screwed around the outer periphery of the filling port of the shoulder barrel frame and screwed in. The cap 17 is screwed over the outer periphery of the squeezing port of the tube head, and the squeezing port is sealed. Before the cylindrical portion 16 of the tube head is screwed into the outer periphery of the filling port of the shoulder barrel frame and mounted on the tube head, a cap for sealing the squeeze port may be screwed in and mounted in advance.

When the cylindrical portion 16 of the tube head made of EVAL is screwed and attached to the outer periphery of the filling port 13 of the shoulder barrel frame made of polyethylene, the upper end of the peripheral portion of the filling port 13 has an annular shape of a cylindrical portion having the same diameter as this. At the same time, the conical surface 16 'at the lower end of the cylindrical portion falls on the shoulder 12' of the shoulder barrel frame and presses against the front end 11 'of the cylindrical body 11 including the fused EVAL, It contacts the shoulder 12 'via the front end 11'.

In order to remove the mucus product filled in the cylinder, the cap 17 is removed, and the cylinder body is pressed to squeeze the mucus product inside from the expression port 15 of the tube head 14.

When the tube head screwed around the outer periphery of the filling port 13 of the shoulder opening barrel frame is mistakenly removed and the cylinder body is pressed, a large amount of the mucus product inside flows out from the filling port 13. After filling the product into the cylinder body and screwing the inner circumference of the tube head cylindrical part around the outer periphery of the filling port 13, apply adhesive or heat heel the tube head cylindrical part and filling port after screwing. It is preferable to prevent the tube head from being removed from the filling port.

For the same reason, the inner periphery of the cylindrical portion of the tube head and the outer periphery of the filling port of the shoulder opening frame are not connected by screw engagement, and the outer peripheral portion of the filling port is not connected to the cylindrical portion of the tube head. May be fitted together and bonded or welded by heat sealing. Also in this case, when the cylindrical portion 16 of the tube head made of EVAL is attached to the outer periphery of the filling port 13 of the shoulder sleeve frame made of polyethylene, the upper end of the peripheral portion of the filling port 13 becomes an annular inner upper surface of a cylindrical portion having the same diameter. 16a, and at the same time, the conical surface 16 'at the lower end of the cylindrical portion falls down on the shoulder 12' of the shoulder-portion frame and presses against the front end 11 'of the cylindrical body 11 fused to the shoulder. So that it comes into contact with the shoulder 12 '.

In the illustrated embodiment, polyethylene is used as the polyolefin resin, but other polyolefin resins such as polypropylene may be used.

[0019]

[Effect of the invention]

 As is apparent from the above description, in the present invention, a polyolefin resin having a large-diameter filling port 13 into which a filling nozzle for injecting and filling a mucus product can be inserted in front of a cylinder body 11 containing a thin and flexible EVAL. Since the shoulder barrel frame 12 is fixed, the rear end of the barrel 1 is closed, and then a mucus product filling nozzle is inserted into the filling port of the shoulder barrel frame to fill a predetermined amount of the mucus product into the barrel. can do. Then, after filling, an EVAL tube head closed with a polyolefin resin cap may be attached to the filling port of the shoulder barrel frame to close the filling port. Therefore, it is possible to completely eliminate the tube container when filling the mucus product from the open portion at the rear end of the barrel and a space for wasting the filled mucus product, and the shoulder barrel frame and the cap are compared with EVAL. Because it is made of inexpensive polyolefin resin, tube containers can be provided at low cost.

Further, when the cylindrical portion 16 of the tube head made of EVAL having a high gas barrier property is attached to the outer periphery of the filling port 13 of the shoulder barrel frame made of a polyolefin resin, the conical surface 16 ′ at the lower end of the cylindrical portion becomes the shoulder barrel. It falls down on the shoulder 12 'of the frame, presses against the front end 11' of the cylinder body 11 including the gas barrier high EVAL fused to the shoulder, and comes into contact with the shoulder 12 'via the front end 11'. For this reason, the shoulder 12 'of the shoulder cylinder frame of the polyolefin resin having a low gas barrier property is not exposed to the outside. Therefore, the organic solvent and scent of the mucus product and cream in the container do not escape to the outside, and oxygen infiltrates into the container, preventing oxidation and deterioration of the product in the container, and can be stably stored for a long period of time.

[Brief description of the drawings]

FIG. 1 is a front view in which a half of a state in which a cylinder body is filled with mucus, and a tube head and a cap are attached is a cross section, and a main part is enlarged.

FIG. 2 is an explanatory view showing a state in which mucus is filled into a cylinder body from a filling port by a filling nozzle, and an exploded front view in which a tube head and a half of a cap are cross-sectioned.

FIG. 3 is a front view of a half of a state in which a shoulder / mouth cylinder frame is formed at a front end of the barrel.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 cylinder body 11 ′ front end of cylinder body 12 shoulder cylinder frame 12 ′ shoulder of shoulder cylinder frame 13 filling port of shoulder cylinder frame 14 tube head 15 tube head squeezing port 16 tube head cylinder section 16 ′ lower end of cylinder section Conical surface 17 Cap 27 Mucus filling nozzle 28 Mucus

Claims (2)

[Utility model registration claims] 1. A hard shoulder barrel made of a polyolefin resin having a filling port having a diameter larger than a filling nozzle of a mucus product at the top of a conical shoulder, and a polyolefin on both inner and outer surfaces of a saponified ethylene-vinyl acetate copolymer. A thin, flexible, heat-sealable cylinder body with a five-layer structure in which a polyolefin resin layer is provided via a system adhesive, the shoulder port frame is attached to the front end, and the rear end is sealed. A rigid tubular tube head of ethylene-vinyl acetate copolymer saponified having a mouth at the tip and attached to the filling port of the shoulder barrel frame, and a polyolefin-based resin that removably closes a squeeze port of the tube head. Consisting of a hard cap,
The front end of the barrel is fitted around the shoulder barrel frame and fixed around the shoulder.A conical surface corresponding to the shoulder barrel shoulder is provided at the lower end of the tube head, and the tube head is filled with the shoulder barrel frame. When mounted over the mouth, the conical surface at the lower end of the tube head comes into contact with the shoulder barrel shoulder through the front end of the barrel secured around the shoulder barrel shoulder. Tube container for filling mucus products. 2. The tube container for filling a mucus product according to claim 1, wherein the outer diameter of the lower end of the tube head is equal to or larger than the outer diameter of the shoulder of the shoulder barrel frame. Tube container for filling mucus products.