JP4476728B2 - Delaminating air introduction path and its formation method in delamination container - Google Patents

Description

    The present invention relates to a delamination container, and more particularly to an introduction path for delamination air and a method for forming the same.

The delamination air introduction hole of the delamination container for household products filled with cosmetics, medicines, shampoos, rinses, body soaps, etc. has been known for a long time, and in order to smoothly introduce delamination air, After delamination air is blown from the introduction hole, the inner layer is peeled off from the outer layer, air is injected from the container mouth, the delamination air is discharged, and the inner layer is restored to its original state. Is conventionally known (see Patent Document 1).
JP-A-9-58750

  However, even if the initial delamination has been applied, the conventional atmosphere introduction hole has the inner layer joined to the outer layer and is in contact with the periphery of the introduction hole. Delami air may not be introduced immediately.

  An object of the present invention is to solve the above-mentioned problems, and with respect to the air introduction hole hollowed out in the outer layer, the opposing inner layer portion is inverted and bulged inward to form an introduction path at the inner periphery of the air introduction hole. It is an object of the present invention to provide a delamination container and a forming method thereof.

In order to solve the above-mentioned problems, the present invention is a delamination container comprising an outer layer and an inner layer as a delamination container, in which air inlet holes are drilled in the outer layer of the mouth, and is formed in a laminated state in the mouth. At the projecting portion, an air introduction hole in which all the projecting portions of the outer layer are cut out to form a flat peripheral edge, a bulging portion facing the air introduction hole and the inner layer being inverted and bulged inward, and an air introduction hole A configuration is adopted in which a gap serving as an air introduction path is formed between the outer layer and the inner layer of the inner peripheral edge of the.

As a method for forming the atmosphere introduction hole and the introduction path of the delamination container, in the method for producing the delamination container composed of the outer layer and the inner layer, a dome-shaped protrusion is formed at the lower part of the container mouth, and in the protrusion, the cylindrical cutter blades, peripheral edge to form a planar air introducing hole is cut out all only the outer layer of the projecting portion, and then is inverted bulging the inner layer of the projecting portions inwardly by blowing air from the air introducing hole Thereafter, a configuration is adopted in which the blown air is discharged so as to maintain the inverted bulge state of the inner layer.

Inside the air introduction hole, a bulging portion is formed by inverting and bulging the opposing inner layer portion, and an air introduction path is formed between the outer layer and the delaminating air can be smoothly introduced.
In addition, the introduction path can be easily formed by a conventional method only by forming a dome-shaped protrusion at the lower part of the container mouth.

Next, air introduction holes and introduction paths in the delamination container of the present invention will be described.
The delamination container is used to store household items such as cosmetics, chemicals, shampoos, rinses, body soaps, etc. as contents, and to discharge the contents by fitting a pump or the like. It is most suitable for repelling and will be described below with reference to the drawings.

  In FIG. 1, A is a delamination container composed of an outer layer 1 and an inner layer 2 laminated on the outer layer 1 so as to be peelable, and is composed of a mouth portion 3, a shoulder portion 4, a trunk portion 5, and a bottom portion 6.

A screw 7 is screwed on the outer periphery of the mouth portion 3, a flat portion 8 is provided below the screw 7, and an air introduction hole 9 is formed in the outer layer 1 by cutting out only the outer layer 1.
The portion of the inner layer 2 inside the air introduction hole 9 is inverted and bulged inward to form a bulge portion 10, and the inner surface of the bulge portion 10 is located away from the outer layer 1. An introduction path 11 is formed between the peripheral edge of 9.
An air introduction gap is formed between the outer layer 1 and the inner layer 2 below the introduction path 11 by initial delamination.

Next, a method for forming the air introduction hole and the introduction path will be described.
As shown in FIGS. 2 and 3, a flat portion 8 is formed in the lower portion of the mouth portion 3 of the laminated blow container Aa, and the protruding portion 12 a of the outer layer 1 and the protruding portion of the inner layer 2 are formed in the central portion of the flat portion 8. A dome-shaped protruding portion 12 in which the portion 12b is laminated is formed.

After forming the layered blow container Aa, a punch cutter having a cylindrical cutter blade formed at the tip is driven, and the protrusion 12a of the outer layer 1 is cut out, leaving the protrusion 12b of the inner layer 2, as shown in FIG. The air introduction hole 9 is drilled.
Next, as shown in FIG. 5, the air blowing member 13 is inserted into the air introduction hole 9 to blow the initial delamination air.
At that time, the protrusion 12b of the inner layer 2 facing the air introduction hole 9 is inverted and bulged by the delamination air.

Next, air is press-fitted from the container opening 3, the delamination air is discharged, the inner layer 2 is returned to the original state, and an air introduction gap is formed between the outer layer 1 and the inner layer 2.
At that time, the projecting portion 12b of the inner layer 2 that has been inverted and bulged is maintained in the bulged state without being restored, and the bulging portion 10 and the introduction path are formed at the peripheral portion of the air introduction hole 9 as shown in FIG. 11 is obtained.

Next, the function and effect of the laminated peeling container of the present invention will be described.
In using the delamination container A, the inside of the container is depressurized in accordance with the dispensing of the content liquid, the inner layer 2 is peeled from the outer layer 1, and delami air is introduced into the air introduction gap through the air introduction hole 9.
At this time, since the introduction path 11 is formed around the air introduction hole 9, the introduction of the delamination air immediately starts simultaneously with the decompression of the delamination container A, and the inner layer 2 is smoothly peeled off.

  In addition, the introduction path 11 is formed by blow molding so as to form a dome-shaped protruding portion 12 in blow molding, and the air introduction hole 9 and the initial delamination need only be performed in the same manner as in the past. The method is also simple.

Since delamination air is smoothly introduced into the delamination container, the delamination of the inner layer is advanced in response to slight pressure reduction.
Therefore, it can utilize suitably also for the lamination peeling container which pours out a small amount of contents.

It is a partial cross section elevation view of the lamination exfoliation container of the present invention. It is a partially broken perspective view explaining a lamination blow container. It is a cross-sectional elevation view of a laminated blow container. It is a partial vertical section elevational view of a laminated blow container at the time of air introduction hole drilling. It is a partially vertical elevational view of the laminated blow container at the time of initial delamination.

Explanation of symbols

DESCRIPTION OF SYMBOLS A Lamination peeling container Aa Lamination blow container 1 Outer layer 2 Inner layer 3 Mouth part 4 Shoulder part 5 Body part 6 Bottom part 7 Screw 8 Flat part 9 Atmospheric introduction hole 10 Swelling part 11 Introductory path 12, 12a Protrusion part 13 Air blowing member

Claims (2)

A delamination container consisting of an outer layer and an inner layer, with an air introduction hole drilled in the outer layer of the mouth,
At the protrusion formed in a laminated state at the mouth, an air introduction hole formed by cutting out all the protrusions of the outer layer to form a flat periphery, and facing the air introduction hole, the inner layer is inverted and bulged inward. A delamination container characterized in that a bulging portion and a gap serving as an air introduction path are formed between an outer layer and an inner layer at the inner periphery of the air introduction hole. In the method for producing a delamination container composed of an outer layer and an inner layer,
Form a dome-shaped protrusion at the bottom of the container mouth,
In projecting portion, the cylindrical cutter blades, only the outer layer of the projecting portion periphery to form a flat air introducing hole cut out all and then the lining of the projecting portions inwardly by blowing air from the air introducing hole A method of forming an air introduction hole and an introduction path of a delamination container, wherein the blown air is discharged so as to maintain the inverted bulge state of the inner layer after inverting and bulging.

Images