JP2003012012A - Delamination bottle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a delamination bottle suitable as a container for food and drink by applying high sealability before unsealing and tamper-evidence to the bottle. SOLUTION: The synthetic resin delamination bottle 1 comprises a container body 2 including an outer layer 4 forming a regular outer shell and an inner layer 5 which is peelably laminated on the outer layer 4 and rich in flexibility, and a topped cylindrical lid 3 to be detachably threaded with a mouth tube 8 forming an opening of the container body 2. It includes a sealing piece 9 with gas barrier properties which is peelably glued to an upper end surface of the mouth tube 8 for sealing the opening of the container body 2.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a delami bottle provided with a high sealing property before opening and a function of proving that a container is unopened. 2. Description of the Related Art An outer layer forming a fixed outer shell having squeezing properties and an inner layer forming a highly flexible inner bag for housing contents are releasably laminated. The inner layer is peeled from the outer layer and deforms due to the internal pressure being reduced due to the discharge of the contents, while air is taken in between the outer layer and the inner layer through the air holes provided in the outer layer, due to the decrease in the internal pressure due to the content being poured out. [0003] Therefore, outside air does not enter the inner layer, and as a result, deterioration of the content due to oxidation or the like hardly occurs, and the content can be safely stored for a long period of time.
Delamin bottles having such characteristics have been conventionally used for anaerobic contents whose quality is liable to be deteriorated by contact with outside air, for example, as containers for cosmetics, taking advantage of the property of preserving the contents, In the future, it is hoped that it will be used as a container for storing food and drink. By the way, it has been proved that a container used for food and drink has a high sealing property for preventing the deterioration of the contents before opening, and that the container has not been opened for giving a sense of security to consumers. There is a strong demand for a so-called virgin function, and when a delami bottle is used as a container for food and drink, these properties and functions are naturally required. [0005] However, in the conventional delami bottle, for example, only the screw cap made of polyethylene is used to secure the seal.
It is not always possible to maintain high sealing performance, and the gas barrier property of the opening is not always sufficient. Therefore, when used as a food and drink container, there is a problem that the sealing performance is unsatisfactory. Was. In the field of commodities in which conventional delami bottles have been used, a virgin function has not been particularly required. Therefore, in order to apply the delami bottle to a food or drink container, it is necessary to provide a virgin function. Therefore, the present invention has been made to solve the above-mentioned problems in the prior art, and it is an object of the present invention to provide a high quality seal before opening and a virgin function to a delami bottle. An object of the present invention is to provide a delami bottle suitable for a container for food and drink. Means for Solving the Problems According to the present invention, there is provided a squeezable deformable, recoverable and flexible outer layer for storing contents and reducing internal pressure. The inner layer, which is flexible and deforms to reduce the volume,
Having a container main body blow-molded in a bottle shape, laminated so as to be peelable, and having a cylindrical cap with a top that is removably screwed to a mouthpiece that forms an opening of the container main body. Another object of the present invention is to provide a sheet piece having excellent gas barrier properties, which is peelably adhered to the upper end surface of the mouthpiece portion of the container body to seal the opening of the container body. In the present invention, the sealing piece having gas barrier properties is adhered to seal the opening of the container main body. Therefore, the opening of the registration main body is tightly sealed while exhibiting high gas barrier properties. As a result, a high sealing property is exhibited. [0010] When opening the container, the consumer simply removes the lid and then visually checks the presence and the state of the sealing piece.
It is possible to immediately determine whether or not the seal has been opened, and it is possible to obtain a greater sense of security by peeling off the seal piece with its own hand. Further, the present invention is manufactured by a simple manufacturing process of adhering a sealing piece processed into a predetermined shape and size to a mouthpiece after accommodating the contents in a container main body. The increase in cost due to the addition of the seal piece to the combination with the above can be suppressed to a small value. An embodiment of the present invention will be described below with reference to the drawings. Deramie bottle 1 shown in FIG.
Is blow molded into a bottle shape from a co-extruded parison having a two-layer structure, and an outer layer 4 made of a polyethylene resin and an inner layer 5 made of a nylon resin that is incompatible with the polyethylene resin are releasably laminated. A container body 2 configured by
A cylindrical cap with a top 3 detachably screwed into a mouthpiece 8 forming an opening of the container body 2;
And a sealing piece 9 made of a sheet which is peelably adhered to and seals the opening. The outer layer 4 of the container body 2 is squeezable and flexible, exhibiting a stable self-shape retention capability that is free to be restored, so that after the squeeze deformation for discharging the contents, the outer layer 4 is quickly squeezed. The original shape is restored, and a stable external shape is stably maintained, and an air hole 10 provided with a check valve is opened in a portion where the mouthpiece portion 8 is formed. The outside air is sucked between the outer layer 4 and the inner layer 5 from the air hole 10. The inner layer 5 of the container main body 2 is formed to a thickness that exhibits sufficient flexibility to rapidly shrink and deform to reduce the volume due to a decrease in internal pressure accompanying the pouring of the stored contents. And is laminated to the outer layer 4 so as to be peelable. The lid 3 is composed of a combination of a lower lid 6 and an upper lid 7. The lower lid 6 has a spout 13 provided with a check valve on the top wall, and surrounds the spout 13. It is configured to have a cylindrical spouting tube 14 that stands upward, and is screwed and assembled to the mouth tube portion 8 firmly.
The outlet tube 14 is opened and closed by being removably screwed into the lower case 6. Both the lower cover 6 and the upper cover 7 are made of polyethylene resin. As shown in FIG. 2, the sealing piece 9 comprises at least two layers of an aluminum foil 11 having a high gas barrier property and an adhesive layer 12 made of a thermoplastic synthetic resin laminated on the lower surface thereof. From the outer peripheral edge of the upper end surface of the barrel 8 is cut and formed into a shape substantially the same as the outer peripheral edge thereof, and is densely welded to the upper end surface of the barrel 8 by a high-frequency dielectric heating to such an extent that it can be peeled off. . When the consumer uses the container body 2 for the first time,
Then, the sealing piece 9 is peeled off, the container body 2 is opened, the lid 3 is quickly screwed on, and the container body 2 is closed. Although not shown in the drawing, by providing one tongue piece on the peripheral edge of the seal piece 9 as a portion to be picked when peeling off, the opening operation can be easily performed. When the contents are to be poured, the outer layer 4 is squeezed and the inner layer 5 is pressed while the upper lid 7 is unscrewed from the lower lid 6 to check the contents in the inner layer 5 in a reverse manner. The valve is pushed open to pour out from the pouring port 13 through the pouring cylinder 14, but as the pouring of the content proceeds, the inner layer 5 undergoes wiping deformation. When the squeezing of the outer layer 4 is completed after the contents have been poured out, the outer layer 4 is restored to its original shape, whereas the inner layer 5 whose outlet 13 is closed by the check valve is connected to the outer layer 4. It is not possible to restore the original shape together, a negative pressure is generated between the outer layer 4 and the inner layer 5, air is sucked from the air holes 10 between the outer layer 4 and the inner layer 5, and the inner layer 5 is Peel from The outside air sucked between the outer layer 4 and the inner layer 5 is
Since the exhaust to the outside is prevented by the check valve provided in the air hole 10, the air is not discharged to the outside by the action of.
Is squeezed, the inner layer 5 is compressed through this air, and the contents are discharged. As described above, since no air is taken into the inner layer 5, the contents are kept in a good storage state without coming into contact with the air. The gas barrier function portion of the sealing piece 9 is not limited to aluminum foil, but may be made of ethylene vinyl alcohol copolymer or nylon resin. is there. The present invention is configured as described above.
With a gas barrier property, a high sealing property that tightly seals the opening and a highly recognizable virgin function can be imparted to the delami bottle at low cost by a simple manufacturing process, and therefore, a delami bottle suitable for food and beverage containers This has the effect that it can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a semi-longitudinal front view showing an embodiment of the present invention, with a lid removed. FIG. 2 is a sectional view showing a configuration of a seal piece of the embodiment shown in FIG. DESCRIPTION OF SYMBOLS 1; Delamination bottle 2; Container main body 3; Lid 4; Outer layer 5; Inner layer 6; Lower lid 7; Upper lid 8; Mouth section 9; Sealing piece 10; Air hole 11; Aluminum foil 12; ; Outlet 14; Outlet tube

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[Procedure for Amendment] [Date of Submission] July 10, 2001 (2001.7.1)
0) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] 0007 [Amendment method] Change [Contents of amendment] Therefore, the present invention relates to the above-mentioned prior art.
That was conceived to solve the problems, the previous high sealability opening, and aims to the technical problem of imparting virgin function Deramibotoru provides Deramibotoru suitable for containers with and food I do. [Procedure amendment 2] [Document name to be amended] Description [Item name to be amended] 0009 [Correction method] Change [Contents of amendment] In the present invention, a seal piece having gas barrier properties is adhered to the container body. Is sealed, the opening of the container body is tightly sealed while exhibiting high gas barrier properties, thereby exhibiting high sealing properties. [Procedure amendment 3] [Document name to be amended] Description [Item name to be amended] 0011 [Correction method] Change [Content of amendment] Further, according to the present invention, after the contents are accommodated in the container body, a predetermined shape is obtained. the processed seal piece dimensions, because it is manufactured by a simple manufacturing process that adheres to the mouth tube portion, an increase of expenses to the combination of a container body and lid, due <br/> to add a sealing strip Can be kept small. [Procedure amendment 4] [Document name to be amended] Description [Item name to be amended] 0016 [Correction method] Change [Contents of amendment] As shown in FIG. 2, the seal piece 9 is made of aluminum having at least a high gas barrier property . It is composed of two layers of a foil 11 and a thermoplastic synthetic resin-based adhesive layer 12 laminated on the lower surface thereof, and is cut from a laminated sheet to have substantially the same shape and dimensions as the outer peripheral edge of the upper end surface of the barrel 8 and molded. And the mouthpiece 8
Is densely welded to the upper end surface by high frequency dielectric heating to such an extent that it can be peeled off. [Procedure amendment 5] [Document name to be amended] Description [Item name to be amended] 0020 [Correction method] Change [Content of amendment] The outside air sucked between the outer layer 4 and the inner layer 5
Since the discharge to the outside is prevented by the check valve provided in the air hole 10, the air is not discharged to the outside, and after the inner layer 5 is peeled off, the outer layer 4 is squeezed. , The inner layer 5 is compressed and the contents are poured out. [Procedure amendment 6] [Document name to be amended] Description [Item name to be amended] 0022 [Correction method] Change [Contents of amendment] The seal piece 9 is made of aluminum which is a gas barrier function part. It is not limited to a foil, but may be made of an ethylene vinyl alcohol copolymer or a nylon resin.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 85/50 B65D 85/50 A F-term (Reference) 3E035 AA20 BA10 BB10 BD02 CA03 3E067 AB01 BA03C BA12B BB14B BB14C CA04 EA32 EE60 FA04 FC01 GD06 3E084 AA04 AA12 AA24 AA37 AB01 BA03 BA08 BA09 CB02 CC03 DA01 DB12 DC03 FA09 FB02 FD13 HA01 HB01 HC03 HD01 KB01 LA02 LA17 LB02 LC01 LD01

Claims (1)

Claims 1. A squeeze-deformable, recoverable and flexible outer layer (4) accommodates the contents inside, and shrinks and deforms due to a decrease in internal pressure. The container body (2) blow-molded in a bottle shape by laminating a flexible inner layer (5) in a peelable manner, and a mouthpiece portion forming an opening of the container body (2) (8), a lid-shaped cylindrical lid (3) that is detachably screwed, and is peelably adhered to the upper end surface of the mouthpiece (8), and the container body (2) A synthetic resin delamination bottle provided with a sheet piece (9) that is excellent in gas barrier properties and seals the opening.