JP3529082B2 - Package and manufacturing method thereof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package for a sheet pack and the like and a method for manufacturing the same.

[0002]

2. Description of the Related Art Heretofore, various sheet-like packs have been proposed which are used by being attached to the face for the purpose of eye care or the like. In these sheet-like packs, a pack agent layer is formed on a base cloth such as a non-woven fabric, and a releasable sheet or mount is provided on the surface of the pack agent layer.

In packaging these sheet-like packs, the original sheet constituting the sheet-like pack is completely cut together with the peelable film or the mount and placed in a packaging bag, or the original sheet is half-cut and the peelable film or A method is used in which the entire backing sheet is left and used as a backing sheet for packaging.

[0004]

However, when the whole sheet-shaped pack is cut together with the peelable film or the backing sheet and put in the packaging bag, a shift occurs in the packaging bag, and in particular, a plurality of packs are separated by one sheet. When packed in a bag, problems such as the sheet-like packs adhering to each other and the packing bag not fitting at a constant pitch occur. Further, in order to half-cut after forming the raw sheet, it is necessary to strictly control the operating conditions, and at the same time, especially when the packing agent contains a polyvalent metal crosslinked product of a water-soluble polymer compound, the packing agent There is a problem in that the sheet-like pack cannot be cut and trimmed unless the layers are cross-linked and aged in a single-wafer manner, and the production efficiency is significantly reduced.

An object of the present invention is to improve the productivity of a package by eliminating the displacement and adhesion of the contents in the packaging bag.

[0006]

According to the present invention as set forth in claim 1, the contents are fixed to the inner surface of the packaging bag by electrostatic force.
A package, in which the contents form an agent layer on a base cloth
And sheet-like contents with a release sheet layer on the surface of the agent layer
The peelable sheet layer is applied to the inner surface of the packaging bag by electrostatic force.
It is designed to be fixed .

The present invention according to claim 2 is a packaging sheet.
The process of charging at least one of the contents and the packaging sheet
The contents on the packaging sheet and the contents on the packaging sheet with electrostatic force.
The process of fixing with the packaging sheet and the packaging bag
And a process of enclosing the contents in a packaging bag.
A method for manufacturing a package, wherein the content is an agent layer on a base cloth.
A sheet-shaped product with a release sheet layer on the surface of the agent layer
The contents are the peelable sheet layer of the packaging bag due to electrostatic force.
It is designed to be fixed to the inner surface .

[0008]

[0009]

[0010]

[Function] Contents are packed by electrostatic force in a packing bag (packing sheet)
It is fixed to the inner surface of the and does not shift. Therefore, when the contents are supplied on one packaging sheet and then the other packaging sheets are stacked and sealed, the contents are fixed on one packaging sheet and the sealing of the two packaging sheets is performed. It won't get caught between parts.

The contents are fixed to the inner surface of the packaging bag, and when a plurality of contents are packed in one packaging bag, the contents do not shift and stick to each other afterwards.

Not only the contents are fixed to the packaging sheet by electrostatic force, but also the two packaging sheets constituting the packaging body are mutually attracted by electrostatic force, which results in air bleeding in the bag during bag making. Does not require external force. Therefore, even a fragile content can be formed into a thin-walled package without crushing it. Further, since the bulkiness of the package is reduced, the integrated size of them can be made compact.

Since no adhesive is used to fix the contents to the inner surface of the packaging bag, the contents can be immediately peeled off and taken out from the packaging bag immediately after the opening of the packaging bag. It is not necessary to control the supply of the adhesive only at the object fixing position, and it is sufficient to uniformly charge the entire inner surface of the packaging bag, and the workability is good. This is particularly advantageous when packing many contents in one packaging bag.

A sheet-like content obtained by cutting a raw fabric sheet consisting of a base cloth / agent layer / peeling sheet layer into a desired shape is fixed directly to the inner surface of a packaging bag through the peeling sheet layer. By doing so, the sheet-shaped contents and the packaging bag are integrally configured. With such a configuration, the manufacturing and packaging processes of the sheet-shaped contents are simplified and the production efficiency is greatly improved,
It is possible to obtain a sheet-shaped content package in which waste of raw materials is prevented and no slippage or adhesion occurs in the packaging bag.

[0015]

1 is a schematic view showing a package, FIG.
FIG. 3 is a schematic diagram showing a package manufacturing device.

(Packaging body) (FIG. 1) As shown in FIG. 1, the packaging body 10 includes two packaging sheets 1
A sheet-like pack 14, which is a sheet-like content, is enclosed in a packaging bag 10A in which 1 and 12 are sealed by a heat-sealing portion 13 at their outer edges.

Packaging sheet 11 constituting the packaging bag 10A
(12 is the same) is made of a plastic sheet, for example, polypropylene (PP) having heat sealing property as the inner layer 11A, aluminum foil (Al) having gas barrier property as the intermediate layer 11B, and polyethylene terephthalate (which protects the aluminum foil). A multilayer laminated sheet having PET) as the outer layer 11C can be adopted.

The sheet-like pack 14 is composed of a non-woven cloth 14A, a pack agent layer 14B, and a peelable sheet layer 14C made of PET.

The package 10 comprises an inner layer 11A of the packaging sheet 11 and a peelable sheet layer 14C of the sheet pack 14.
At least one of which is charged in advance and the sheet-like pack 14 is applied to the inner layer 11A of the packaging sheet 11 by the electrostatic force.
By fixing the releasable sheet layer 14C, the sheet-like pack 14 can be enclosed in the packaging bag 10A in a fixed state.

In the case of the package 10, 1 is provided in the packaging bag 10A.
One or more sheet-like packs 14 can be accommodated. When accommodating two or more sheet-like packs 14 in the packaging bag 10A, the sheet-like packs 14 are separated from each other so that the sheet-like packs 14 do not come into contact with each other and cross-link and adhere. It is fixed to the packaging sheet 11 as described above.

In this embodiment, the packaging sheet 11 (1
2 is also the same), and the constituent materials of the sheet-like pack 14 are as follows. The electrostatic fixing portions of the packaging sheet 11 (12) and the sheet-like pack 14 (the inner layer 11A of the packaging sheet 11 and the peelable sheet layer 14C of the sheet-like pack 14) are dielectrics (plastic with high electric resistance). Need, but
It suffices that at least one of the packaging sheet 11 and the sheet-like pack 14 is an object to be charged.

As the inner layer agent of the packaging bag of the present invention, a plastic sheet made of a dielectric material is used. Examples of the plastic material suitable for forming the plastic sheet include crystalline PP, crystalline propylene-ethylene copolymer, crystalline polybutene-1, crystalline poly-4-methylpentene-1, low-, medium-, Alternatively, polyolefins such as high-density polyethylene, ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), ion-crosslinked olefin copolymer (ionomer); polystyrene, styrene-butadiene copolymer Aromatic vinyl copolymers such as; polyvinyl halides, vinyl halide resins such as vinylidene chloride resins; acrylonitrile-styrene copolymers, acrylonitrile-styrene-
Nitrile polymers such as butadiene copolymers; polyamides such as nylon 6, nylon 66, para or metaxylylene adipamide; polyesters such as PET and polytetramethylene terephthalate; various polycarbonates; polyacetals such as polyoxymethylene And other thermoplastic resins.

Sheets made of these plastic materials are used as unstretched or uniaxially or biaxially stretched sheets.

The plastic sheet used in the packaging bag of the present invention may be a single layer of these plastic sheets or a laminate of two or more thereof, or one or more of these plastic sheets and Al. It can also be configured by laminating metal foil such as, paper, cellophane, and the like.

A preferable plastic sheet is A
1) PET / Al / ionomer resin / copolymer polypropylene (CPP), 2) PET / Al / low density polyethylene (LDPE) / CPP, 3) PET /
Al / Linear low density polyethylene (L-LDPE) / CP
P, 4) Nylon (Ny) / Al / ionomer resin /
CPP, 5) Ny / Al / LDPE / CPP, 6) Ny
A laminated sheet having a layer structure such as / Al / L-LDPE / CPP can be used.

The sheet-like content used in the present invention is prepared by applying a poultice or a pack onto a base cloth such as a non-woven fabric to form a layer of the agent, and then providing a releasable sheet layer. The original sheet is cut into an oval shape, a square shape, or any other desired shape. Here, the peelable sheet is preferably one that is easily charged, such as PET or P
A sheet material made of synthetic resin such as E or PP is used. By fixing the sheet-shaped contents thus configured to the inner surface of the packaging bag, the sheet-shaped contents and the packaging bag are integrally configured.

(Packaging body manufacturing apparatus) (FIG. 2) As shown in FIG. 3, the packaging body manufacturing apparatus 20 includes an original sheet feeding device 21 for continuously feeding the original sheet 100 of the sheet pack 14, and an original sheet. A cutting device 22 (anvil roll 22A and die cutter 22B) for cutting the sheet-shaped pack 14 having a desired shape from the sheet 100, a packaging sheet feeding device 23A for continuously feeding the packaging sheet 11, and a packaging sheet 1
Static electricity generator 24 (electrode 24A) for precharging 1
A transfer roll 25 that receives the sheet-shaped pack 14 cut by the cutting device 22 and transfers it to a predetermined position on the charged packaging sheet 11, and a packaging sheet feeding device 23B that continuously feeds the packaging sheet 12. A heat-sealing device for stacking the packaging sheet 12 on the packaging sheet 11 and sealing the packaging sheets 11, 12 around the sheet-like pack 14 fixed on the packaging sheet 11 by electrostatic force to form the heat-sealing portion 13. 26 (side sealer 26A and end sealer 26B), and a cutting device 27 that cuts an intermediate part of the end seal part of the heat seal parts 13 of the packaging sheets 11 and 12 to obtain the package 10. It

As the static electricity generating device 24, a large number of needle-shaped electrodes are arranged side by side in the width direction of the sheet 11 so as not to come into contact with the sheet to form a brush or a comb, and a metal roll is arranged in the axial direction. The sheet is arranged so as to be orthogonal to the traveling direction of the sheet and is configured to contact the sheet 11 so that the roll rotates in accordance with the traveling, and the conductive wire is extended in the width direction of the sheet 11 to extend in the entire width direction of the sheet 11. It is possible to employ a device which is in contact with the other members.

Therefore, the procedure for manufacturing the package 10 by the package manufacturing apparatus 20 is as follows. (1) The raw fabric sheet 100 fed by the raw fabric sheet feeding device 21 is cut by the cutting device 22 to obtain the sheet pack 14 having a desired shape. This sheet pack 14
The non-woven fabric base 14A side is vacuum sucked onto the transfer roll 25.

(2) The packaging sheet 11 fed by the packaging sheet feeding device 23A is charged by the static electricity generating device 24. At this time, especially the inner layer 11A of the packaging sheet 11
To charge.

(3) The sheet-like pack 14, which has been vacuum-sucked by the transfer roll 25, is fixed to a predetermined position of the packaging sheet 11 which has been charged by the static electricity generator 24 by its electrostatic force. At this time, the transfer roll 25 is switched from the vacuum suction to the pressure exhaust, and the sheet-shaped pack 1
4 is provided on the side of the packaging sheet 11. The peelable sheet layer 14 of the sheet-like pack 14 is provided on the inner layer 11A of the packaging sheet 11.
C is attracted and fixed by electrostatic force. It is preferable to use a conductive metal or the like as the material of the transfer roll surface in consideration of the transferability of the pack 14 to the packaging sheet 11.

(4) The wrapping sheet 12 fed by the wrapping sheet feeding device 23B is superposed on the above-mentioned wrapping sheet 11 to which the sheet pack 14 is fed, and heat is applied to the outer edges thereof by the heat sealing device 26. Seal part 13
To form. Subsequently, the cutting device 27 cuts the intermediate portion of the end seal portion of the heat seal portion 13 to obtain the package 10.

Therefore, according to this embodiment, there are the following effects. The sheet-like pack 14 is fixed to the inner surface of the packaging bag 10A (packaging sheet 11) by electrostatic force, and does not shift. Therefore, when the contents are supplied onto one packaging sheet 11 and then the other packaging sheets 12 are stacked and sealed, the sheet-like pack 14 is fixed on one packaging sheet 11 and Heat-sealing portion 13 of packaging sheets 11 and 12
It is not caught in.

The sheet-like packs 14 are fixed to the inner surface of the packaging bag 10A. When a plurality of sheet-like packs 14 are packed in one packaging bag 10A, the sheet-like packs 14 come close to each other due to the subsequent shift movement. Will not stick to each other.

The sheet pack 14 is fixed on the packaging sheet 11 by the required size, and the sheet pack 14 is not wasted.

Not only the sheet-like pack 14 is fixed to the packaging sheet 11 by electrostatic force, but also the two packaging sheets 11 and 12 constituting the package are attracted to each other by electrostatic force. It is possible to form a thin-walled package without crushing the fragile sheet-like pack 14 without requiring an external force for bleeding air in the bag. Further, since the bulkiness of the package is reduced, the integrated size of them can be made compact.

Since no adhesive is used to fix the sheet pack 14 to the inner surface of the packaging bag 10A, the packaging bag 10A
After opening the sheet-like pack 14, the sheet-like pack 14 can be immediately and easily peeled from the packaging bag 10A and taken out.
It is not necessary to control the supply of the adhesive aiming only at the fixing position of the sheet-like pack 14 on the inner surface, and it is sufficient to uniformly charge the entire inner surface of the packaging bag 10A, and the workability is good. This is particularly advantageous when packing a large number of sheet-like packs 14 in one packaging bag 10A.

A sheet-like pack obtained by completely cutting a raw sheet 100 consisting of a base cloth 14A / packing agent 14B layer / releasing sheet layer 14C into a desired shape is directly packaged through the peeling sheet layer. The sheet-like pack and the packaging bag 10A are integrally formed by being fixed to the inner surface of 10A. By taking such a configuration,
In the present invention, the manufacturing process and the packaging process of the sheet-like pack are simplified, the production efficiency is greatly improved, the waste of the raw materials is prevented, and the sheet-like pack package which does not cause the shift or the adhesion in the packaging bag 10A is obtained. be able to.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design change is made within the scope of the present invention. Etc. are included in the present invention. For example, the present invention is not limited to a package having a sheet-like pack as a content, but can be widely applied to a package for general contents.

[0040]

As described above, according to the present invention, it is possible to improve the productivity of the package by eliminating the displacement and adhesion of the contents in the packaging bag.

[Brief description of drawings]

FIG. 1 is a schematic view showing a package.

FIG. 2 is a schematic diagram showing a package manufacturing apparatus.

[Explanation of symbols]

10 packaging 10A packaging bag 11,12 Packaging sheet 14-seat pack 14A base cloth 14B Pack agent layer 14C peelable sheet layer 24 Static electricity generator

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 73/00 B65D 75/30 B65B 63/00 A45D 33/00

Claims (2)

(57) [Claims] 1. A packaging body in which contents are fixed to an inner surface of a packaging bag by electrostatic force , wherein the contents form an agent layer on a base cloth and are peeled off on the surface of the agent layer.
A sheet-like content provided with a removable sheet layer
A package in which the outer layer is fixed to the inner surface of the packaging bag by electrostatic force . 2. A step of charging at least one of a packaging sheet and contents, a step of supplying the contents onto the packaging sheet and fixing the contents onto the packaging sheet by electrostatic force, and pasting the packaging sheets together. A method of manufacturing a packaging body, which comprises a step of constructing a packaging bag, and enclosing the contents in the packaging bag.
Then, the above contents form an agent layer on the base cloth and peel on the agent layer surface.
A sheet-like content provided with a removable sheet layer
A method for manufacturing a package, in which the outer layer is fixed to the inner surface of the packaging bag by electrostatic force .