TWI632093B - Cover body for package body, and package body therewith - Google Patents

Abstract

In order to provide a cover for a package which can be manufactured at a low cost with less resin material. The lid body (10) is provided in the package body by covering the contents taken out from the surface of the package body for accommodating the contents, and has a mounting seat (12) fixed to the outlet of the package body. The hinge portion (14) has one end connected to the mounting seat (12), and a lid portion (16) coupled to the other end of the hinge portion (14) to open and close the mounting seat (12). The mount (12) and the cover portion (16) respectively have fitting portions (24, 32) that are fitted to each other when the lid portion (16) is closed. Further, the lid body (10) including the mount (12), the hinge portion (14), and the lid portion (16) is made of synthetic resin mainly composed of a polypropylene resin or a polyethylene terephthalate resin. The sheet material is integrally formed by sheet forming.

Description

Cover body for package body, and package body therewith

The present invention relates to a lid for a package to be attached to a take-out port of a package containing contents such as a wet sheet, a package including the cover, and a method for producing a cover for a package.

Conventionally, for example, Patent Document 1 discloses a flexible container that can be easily opened and closed. The flexible container has a flexible bag for accommodating a content, and a flexible sealing member which is a dispensing opening formed as a content take-out opening formed on a surface of the flexible bag; and rigidity A sealing element for enclosing the dispensing opening.

The flexible sealing member that closes the above-described dispensing opening has at least two pull tabs. The flexible sealing member is followed by a weak adhesive force that can be repeatedly peeled off from the flexible bag. Further, the rigid sealing element has a base portion that is permanently disposed in the flexible bag, and a cover that is coupled to the base portion by a hinge.

A user who wants to take out the contents from the flexible container first opens the lid of the rigid sealing element to expose the flexible sealing member. Next, the user grasps the pull tab of the flexible sealing member Further, the stretched member is peeled off from the flexible bag to expose the dispensing opening. Thereby, the user can take out the contents from the exposed dispensing opening.

Thereafter, the user who takes out the amount of the desired amount or the number of sheets is attached, and the flexible sealing member is reattached to close the dispensing opening, and then the lid of the rigid sealing element is closed. Thereby, the inside of the flexible bag is sealed, and moisture and the like contained in the contents are prevented from evaporating and drying.

[Previous Technical Literature] [Patent Literature]

Patent Document 1 Japanese Special Table 2010-522675

In the flexible container described in Patent Document 1, the rigid sealing element is firmly attached to the flexible bag, and the flexible container having no content is discarded as garbage in a state in which the rigid sealing element is still attached. Therefore, from the viewpoint of reducing the amount of waste and economy, it is preferable to manufacture the material at a low cost by using a material having as few rigid sealing members as possible.

An object of the present invention is to provide a lid for a package which can be manufactured at a low cost with a small amount of a resin material, a package body including the same, and a method for producing a lid body for a package.

A cover for a package according to the present invention is a cover that is provided in the package by covering a content take-out opening formed on a surface of a package for accommodating a content, and has a mount that is fixed to be a hinge portion of the package body; the hinge portion has one end connected to the mounting seat; and a lid portion connected to the other end of the hinge portion to open and close the mounting seat, the mounting seat and the cover Each of the portions has a fitting portion that is fitted to each other when the cover portion is closed to the mounting seat, and the cover body including the mounting seat, the hinge portion, and the cover portion is made of polypropylene resin or polyterephthalic acid. A sheet made of a synthetic resin mainly composed of an ethylene glycol resin is integrally formed by sheet molding.

In the cover for a package according to the present invention, it is preferable that the sheet is made of a resin material containing at least one of a polypropylene resin, a high-density polyethylene resin, and a nylon resin. In this case, the sheet material may be composed of a resin material containing 60 to 90% by weight of a polypropylene resin and 10 to 40% by weight of a high-density polyethylene resin and/or a nylon resin.

Further, in the lid body for a package according to the present invention, the sheet material may be made of a transparent resin material, and the lid portion may have a transparent portion that can be seen inside when the mount is closed.

In this case, it is preferable that a printing mark is applied to a part of the inner side surface of the cover portion facing the mounting seat when the cover portion is closed, and the printing can be seen from the outer side when the cover portion is closed. Marked.

Further, in this case, it is preferable that the print mark is covered by a background color printing provided on an inner side surface of the cover portion, the background color printing being resistant to substances contained in the contents of the package body. Functional ink.

Further, in the lid for packaging according to the present invention, the antifogging agent may be applied to the inner surface of the lid portion facing the mount when the lid portion is closed.

Further, in the cover for packaging according to the present invention, at least a part of the inner side surface of the cover portion facing the mount when the cover portion is closed may be printed, and the print mark is used for the package body. A functional ink that is resistant to the contents of the contents.

Further, in the lid body for a package according to the present invention, the sheet material may be formed by laminating a base layer mainly composed of a polypropylene resin and a barrier layer for suppressing the permeation of a substance contained in the contents of the package. Composition.

Further, in the lid body for a package according to the present invention, the sheet material may be a filler mixed with a resin material containing a polypropylene resin as a main component.

Further, in the cover for a package according to the present invention, at least one of the fitting portion and the fitting portion of the lid portion may be provided with a fitting adjustment layer made of hard lacquer or foamed ink.

Further, in the cover for a package according to the present invention, the fitting portion and the fitting portion of the cover portion may be in the hinge portion The position corresponding to the central portion of the portion is provided with an engaging portion that is engaged with each other in a state in which the cover portion is closed to the mounting seat.

A package according to another aspect of the present invention includes: a package body, a take-out port for accommodating a content and having a content formed on a surface thereof, wherein the take-out port is sealed by a sealable sealing sheet; and the package body The cover body is a cover for a package body having the structure of any one of the above, and the sealing sheet is covered and fixed to the surface of the package.

Further, in another aspect of the method for producing a package for a package according to another aspect of the present invention, the cover body is provided in the package body by covering a content take-out opening formed on a surface of a package body for accommodating the content. And a molding process for forming a lid body by forming a sheet of a synthetic resin sheet by vacuum forming or compressed air forming, the lid body integrally comprising: being fixed to the package a mounting bracket surrounded by the outlet of the body, a hinge connected to the mounting seat at one end thereof, and a cover portion connected to the other end of the hinge to open and close the mounting seat; and a punching process The sheet-formed lid body is subjected to a punching process to separate the lid body from the sheet material.

In the method for producing a lid body for a package according to the present invention, the method further includes: a printing process in which a printing mark is added to the surface of the flat sheet material before the sheet forming, and a coating process in which an antifogging agent is applied. At least one party.

According to the lid for a package body according to the present invention, the lid body integrally including the mount, the hinge portion, and the lid portion is formed of a synthetic resin sheet, and is integrally formed by sheet forming. Thereby, compared with the case where the cover body is manufactured by the injection molding of a thermoplastic resin, etc., it can manufacture by the resin material less low cost. Therefore, the package in which such a cover is mounted is a relatively economical and environmentally friendly product.

1‧‧‧Package

2a‧‧‧ top surface

2b‧‧‧ bottom

3a, 3b‧‧‧ side

4a, 4b‧‧‧ transverse seals

5‧‧‧Export

6‧‧‧ Sealing film

7‧‧‧Layer

9‧‧‧Flexible film material

10,11‧‧‧Package for packaging body

12‧‧‧ Mounting

14‧‧‧ Hinge section

15‧‧‧Bending line

16‧‧‧ 盖部

18a, 18b‧‧‧ long side

20a, 20b‧‧‧ Short side

22‧‧‧ Openings

24‧‧‧Base side convex

24a‧‧‧ peripheral side

26‧‧‧Inside flange

28‧‧‧Outer flange

28a‧‧‧ recess

29‧‧‧Hot melt

30‧‧‧ Flat section

31, 46‧‧‧Printed marking layer

32‧‧‧ Cover side convex

34‧‧‧Flange

36‧‧‧outer wall

38‧‧‧Space area

40‧‧‧ finger hook

42‧‧‧Fitting adjustment layer

44‧‧‧ Transparent window

48‧‧‧Background color printing layer

50‧‧‧Guide members

52‧‧‧Clamping convex

54‧‧‧Clamping recess

H‧‧‧ Thickness direction

L‧‧‧ Length direction

P‧‧‧Sheet

P1‧‧‧ basal layer

P2‧‧‧ barrier

S‧‧‧ Wet flakes

W‧‧‧Width direction

Fig. 1 is a perspective view showing a package in which a lid for a package is attached in the first embodiment of the present invention.

Fig. 2 is a plan view and a side view of the lid body for a package shown in Fig. 1.

Fig. 3 is a cross-sectional view taken along line A-A of the lid body for a package shown in Fig. 1.

Fig. 4 is a flow chart showing a method of manufacturing a lid for a package.

Fig. 5 is a perspective view schematically showing a manufacturing process of a package including a lid for a package.

Fig. 6 is an enlarged cross-sectional view showing a portion B in Fig. 3.

Fig. 7 is an enlarged cross-sectional view of the sheet material before sheet forming.

Fig. 8 is a plan view and a side view of the lid body for a package according to the second embodiment.

Fig. 9 is a plan view showing a state in which the lid for a package shown in Fig. 8 is closed.

Hereinafter, embodiments (hereinafter referred to as embodiments) of the present invention will be described in detail with reference to the accompanying drawings. In the description, specific shapes, materials, numerical values, directions, and the like are used for easy understanding of the present invention, and may be appropriately changed in accordance with the use, purpose, design, and the like. In addition, in the case of including the following plural embodiments or modifications, the characteristic portions may be used in combination as appropriate.

<First Embodiment>

Fig. 1 is a perspective view showing a package 1 in which a packaging cover 10 is attached in the first embodiment. In Fig. 1, the thickness direction is indicated by an arrow H, the length direction is indicated by an arrow L, and the width direction is indicated by an arrow W. When the package 1 is placed on a horizontal plane, the thickness direction H corresponds to the longitudinal direction or the vertical direction, and the longitudinal direction L and the width direction W correspond to the lateral direction orthogonal to the horizontal plane. This point is the same as the other drawings (Fig. 2, Fig. 3, etc.) other than Fig. 1.

The package 1 is a container in which a laminate 7 in which a plurality of wet sheets (contents) S are laminated, for example, is sealed. The package 1 is formed of a flexible film material which is impervious to water or ethanol contained in the wet sheet. As the flexible film material, for example, a film material obtained by laminating a resin film of an aluminum foil is suitable. However, in the package The contents of the package 1 may also be any items other than the wet sheets. Further, the flexible film material may be composed of a single layer or a multilayer resin film material.

The package 1 has a top surface 2a and a bottom surface 2b facing the thickness direction H, and the two side surfaces 3a and 3b are integrally continuous with the top surface 2a and the bottom surface 2b and face each other in the width direction W. Although not shown in FIG. 1, the top surface 2a of the package 1 is printed with a product name, a trademark, or the like.

On the bottom surface of the package 1, a longitudinal seal portion (not shown) is formed along the longitudinal direction. The longitudinal sealing portion is formed by forming a long strip-shaped film material which is a base material for forming the flexible film material of the package 1 into a cylindrical shape, and heat-sealing both side edges in the width direction. It is formed by joining.

Both end portions of the package 1 in the longitudinal direction L are closed by the transverse seal portions 4a and 4b. The transverse seal portions 4a, 4b are formed by joining the top surface 2a and the bottom surface 2b by, for example, heat sealing or the like. The package 1 is in a state of being sealed by the longitudinal sealing portion formed by the top surface 2a and the lateral sealing portions 4a and 4b formed at both end portions in the longitudinal direction.

A take-out opening 5 is opened at a substantially central position of the top surface 2a of the package 1. In the present embodiment, the take-out port 5 is formed in a long hole shape in which both end portions in the longitudinal direction are arcuate. However, the outlet 5 is not limited to this, and may be, for example, a rectangular shape, a circular shape, an elliptical shape, or the like, and may be formed into a slit by forming only a slit.

The take-out opening 5 of the package 1 is sealed in a sealed state by a sealing sheet 6 made of a soft film material. The sealing sheet 6 has an outer shape having a shape substantially similar to that of the take-out opening 5, and is formed to have a size that can cover the entire outlet 5 . An adhesive layer is provided on the back surface of the sealing sheet 6. Thereby, the sealing sheet 6 is attached to the peripheral edge portion of the take-out opening 5 of the top surface 2a of the package 1. Further, since the sealing sheet 6 is discarded as soon as it is peeled off, the adhesive layer does not need to be an adhesive layer which can be repeatedly peeled off. However, it is not limited to this, and it is also possible to repeat the peeling and the adhesive layer.

The lid for a package (hereinafter, simply referred to as "cover") 10 is attached to the top surface 2a of the package 1 so as to cover the sealing sheet 6 that closes the outlet 5 and surrounds the periphery. The lid body 10 is formed by forming a sheet of a synthetic resin sheet. This manufacturing method will be described later.

Fig. 2 is a plan view and a side view of the lid body 10 shown in Fig. 1, and Fig. 3 is a cross-sectional view taken along line A-A of the lid body 10 shown in Fig. 1. The lid body 10 integrally includes a mount 12, a hinge portion 14, and a lid portion 16.

The lid body 10 of the present embodiment is formed of a colored opaque synthetic resin sheet material mainly composed of a polypropylene resin (PP). The sheet material is suitably composed of, for example, 30 to 50% by weight of a polypropylene resin, 20 to 50% by weight of a filler, and 10 to 40% by weight of a high density polyethylene resin (HDPE) and/or a nylon resin (NY). ) is composed of a resin material.

More specifically, when the filler is 30% by weight, as a first example, 50% by weight of PP and 20% by weight of HDPE are suitable, and as a second example, 40% by weight of PP and 30% by weight of HDPE. Suitably, as a third example, 30% by weight of PP and 40% by weight of HDPE or the like are suitable. Further, as a fourth example, it is also suitably 50% by weight of PP, 40% by weight of a filler, 10% by weight of NY, or the like. By mixing a filler (for example, talc) or the like with PP as described above, it was confirmed that the shrinkage ratio at the time of sheet formation can be suppressed from 1.4 to 1.9% to about 0.4%.

Here, as the filler, for example, talc, crystalline vermiculite, fused vermiculite, magnesium oxide, magnesium carbonate, titanium oxide, aluminum oxide, hydrated alumina, glass short fiber, mica, anhydrite, barium sulfate or the like can be used. In the specific example of the talc, for example, the product name "talc MS-K" (chemical name: magnesium hydrate hydrate, chemical formula: 3MgO‧4SiO ₂ ‧H ₂ O) manufactured by Japan Talc Co., Ltd.

Further, the thickness of the sheet material formed by the sheet is preferably, for example, 0.4 to 0.8 mm, and particularly preferably, for example, 0.7 mm.

The mount 12 of the cover 10 is a base fixed to the top surface 2a of the package 1. The mount 12 is formed in a substantially rectangular frame shape in which the two long side portions 18a and 18b and the two short side portions 20a and 20b are continuous by four substantially arcuate corner portions. A substantially rectangular opening 22 is formed in a central portion of the mount 12. The opening portion 22 is formed so that the entire sealing sheet 6 is exposed to the left and right when the mounting seat 12 is disposed around the sealing sheet 6 of the package 1 . The shape of the opening portion 22 is not limited to a substantially rectangular shape, and may be other shapes such as a circular shape or an elliptical shape.

The mount 12 is a base-side convex portion (fitting portion) 24 having a substantially rectangular ring shape that protrudes in the thickness direction H. The inner flange portion 26 that protrudes outward in the lateral direction is formed on the inner peripheral side of the base side convex portion 24, and the opening portion 22 is defined by the inner peripheral edge portion of the inner flange portion 26.

Further, an engagement convex portion 52 is protruded from the outer circumferential side surface of the base side convex portion 24 on the outer circumferential side surface opposite to the hinge portion 14. The engaging convex portion 52 has a function of being engaged with the engaging concave portion 54 of the lid portion 16 to be described later, and holding the lid portion 16 closed to the mounting seat 12. Here, the group of the engaging convex portion 52 and the engaging concave portion 54 is preferably formed in a group at a position substantially corresponding to the central portion in the longitudinal direction of the hinge portion 14. Thereby, the engagement of both of the lid portions 16 can be surely performed. However, a plurality of engaging projections 52 and engaging recesses 54 may be provided.

An outer flange portion 28 that protrudes outward in the lateral direction is formed on the outer peripheral side of the base-side convex portion 24 of the mount 12. When the lid body 10 is attached to the top surface 2a of the package 1, the hot-melt material 29 applied to the back side of the outer flange portion 28 is indicated by a plurality of chain circles.

The hinge portion 14 has a strip shape having a width smaller than that of the mount 12 and the lid portion 16 in the longitudinal direction L, and one end portion is connected to an edge portion of the outer flange portion 28 of the mount 12, and the other end portion is connected and disposed. Cover portion 16. The substantially center of the hinge portion 14 in the width direction indicates a bending line 15 that is bent when the mount 12 closes the lid portion 16. The bending line 15 is defined, for example, to be easily bendable, and may be formed by a slit having a constant depth from both sides in the longitudinal direction, or may be shown by a side view on the right side in FIG. 2 The both sides in the width direction of the bending line 15 are generally formed by arc-shaped forming reinforcement rigidity, or may be formed by a linear thin portion (for example, a half-cut line).

The lid portion 16 has a substantially rectangular flat plate portion 30; a lid side convex portion (fitting portion) 32 is a substantially rectangular ring shape that protrudes around the outer periphery of the flat plate portion 30; and the flange portion 34 surrounds the cover portion. The outer circumference of the side convex portion 32 is formed in the lateral direction, and the outer circumferential wall portion 36 extends in the thickness direction from the outer peripheral edge portion of the flange portion 34.

The surface of the flat plate portion 30, in other words, the outer surface of the cover portion 16 when the mount 12 is closed, forms a printed mark layer 31 indicating the trade name or trademark of the package 1. This printed designing layer 31 is formed by printing to form a flat sheet before the sheet is formed.

The cover side convex portion 32 is formed to be larger than the base side convex portion 24. As a result, when the lid portion 16 closes the mount 12 as shown in FIG. 3, the inner peripheral side surface of the lid side convex portion 32 is fitted to the outer peripheral side surface of the base side convex portion 24. As a result, the space region 38 that faces the take-out port 5 of the package 1 and the sealing sheet 6 and is surrounded by the base-side convex portion 24 is closed by the flat plate portion 30 of the lid portion 16.

Further, an engagement concave portion 54 is formed on the inner circumferential side surface of the cover side convex portion 32 on the inner circumferential side surface opposite to the hinge portion 14. The engaging recessed portion 54 has a function of being engaged with the engaging convex portion 52 of the mount 12 and holding the lid portion 16 closed to the mount 12.

The outer peripheral wall portion 36 of the cover portion 16 is formed in an arc shape toward the outer side. The protruding finger portion 40. Thereby, when the user opens the lid portion 16 of the lid body 10, the finger can be easily hooked on the finger hook portion 40 of the lid portion 16. Further, a substantially arc-shaped recess 28a may be formed in the outer flange portion 28 of the mount 12 in correspondence with the hook portion 40 of the cover portion 16. By this arrangement, it is possible to reduce the user's hooking of the finger to the outer flange portion 28 of the mount 12 when the user hooks the finger on the hook portion 40 of the cover portion 16, which is a safer design.

Next, a method of manufacturing the package body 10 for a package according to the present embodiment will be described with reference to FIG. Fig. 4 is a flow chart showing a method of manufacturing the lid body 10 for a package.

First, in step S1, corona treatment is performed on one surface of a strip-shaped or sheet-shaped synthetic resin sheet.

Next, in step S2, the printed label layer 31 is formed on the corona-treated surface of the sheet by printing.

Then, in step S3, the sheet material is formed into a sheet by vacuum forming (or compressed air forming), and formed into a shape of the lid body 10 as shown in Fig. 2 .

Finally, in step S4, the cover 10 is separated from the sheet by a punching process. In the punching process, the opening portion 22 may be formed by perforating the mounting seat 12 of the lid body 10. Thereby, the manufacture of the cover 10 is completed.

Further, in the case where the cover layer 31 is not provided with the printed label layer 31, the above steps S1 and S2 may be omitted.

Next, a manufacturing process of a package in which a lid for a package is attached will be described with reference to Fig. 5 . Figure 5 is a rough representation of A perspective view of a manufacturing process of the package 1 of the cover 10.

The strip-shaped flexible film material 9 formed in the package 1 is continuously conveyed in the direction of the arrow D. As a process on the upstream side (not shown), the flexible film material 9 is pierced at a predetermined interval to form a take-out port 5, and the sealing sheet 6 is attached to cover it.

On the other hand, the laminated body 7 of a plurality of wet sheets is produced by another process. Further, in the laminated body supply process, the laminated body 7 is supplied to the inside of the flexible film material 9 at a position corresponding to the sealing sheet 6 in synchronization with the feeding speed of the flexible film material 9 to which the sealing sheet 6 is attached. . Thereby, the flexible film material 9 is wrapped around the laminated body 7 while being guided by the guiding member 50.

Then, in the longitudinal sealing process, the edge portions on both sides in the width direction of the flexible film material 9 are superposed on the lower side of the laminated body 7, and the end edges thereof are sealed in the feeding direction. A longitudinal seal is formed.

Further, in the lateral sealing process, the rear side of the preceding laminated body 7 and the front side of the subsequent laminated body 7 are joined by the heat sealing or the like in the lateral direction to form the transverse sealing portions 4a, 4b, and then The position of the lateral seal portion 4b cuts the flexible film material 9. Thereby, the bag making of the package 1 of the preceding laminated body 7 is completed.

Then, when the packaging of each package is completed, the lid body 10 in the closed state is supplied to the outlet 5 side of the top surface 2a of each package 1. At this time, the hot melt material 29 has been applied to the outer flange portion 28 of the mount 12 of the lid body 10. Therefore, by placing the pair on the top surface of the package 1 The lid body 10 provided on the 2a is pressed by an appropriate pressing force, and the hot melt material 29 is spread over substantially the entire outer flange portion 28 without a gap. Thereby, the lid body 10 is fixed to the package 1 in an airtight manner, and the package 1 including the lid body 10 is produced.

Next, a state of use of the package 1 to which the lid body 10 having the above-described configuration is attached will be described.

The user who wants to take out the wet sheet S from the package 1 is hooked up by the finger hook portion 40 of the lid portion 16. As described above, as shown by the broken line in FIG. 3, the fitting of the base-side convex portion 24 of the mount 12 and the cover-side convex portion 32 of the lid portion 16 is released, and the lid portion 16 is opened. Thereby, the sealing sheet 6 of the package 1 is exposed in the opening 22 of the mount 12 .

Next, the user pinches the end of the sealing sheet 6 to be peeled off, and the outlet 5 is exposed. Then, the finger is inserted into the inside of the package 1 from the exposed take-out opening 5, and the wet sheet S located at the uppermost portion of the laminated body 7 is sucked to the outside of the package 1. Thereby, the user can use the wet sheet S.

Each of the wet sheets S accommodated in the package 1 is laminated in a state in which the adjacent wet sheets are alternately overlapped with each other. Therefore, when a wet sheet is taken out, the end of the next wet sheet is taken out, and the state is ejected from the take-out port 5, so that the user can easily take out the next wet sheet.

When the user finishes taking out the wet sheet S to be used, the end portion of the sheet S projecting from the take-out opening 5 is placed in the base of the mount 12 In the state of the inner side of the side convex portion 24, the lid portion 16 is closed. As a result, the inside of the lid body 10 is in a hermetically sealed state by the fitting of the lid side convex portion 32 of the lid portion 16 and the base side convex portion 24. Thereby, drying of the wet sheet S in the package 10, entry of dust, and the like are suppressed.

As described above, the lid body 10 for a package of the present invention is integrally formed by using a sheet of a synthetic resin sheet, and thus the lid body is produced by injection molding or press molding of a thermoplastic resin. In comparison with the case, it can be easily thin and light weight and manufactured at a low cost with less resin material. Therefore, when the contents are used up and the package 1 is to be discarded together with the lid 10, it is environmentally friendly and economical to reduce the amount of waste.

Next, a modification of the package body 10 of the present embodiment will be described with reference to FIGS. 6 and 7. Fig. 6 is an enlarged cross-sectional view showing a portion B of Fig. 3. In addition, Fig. 7 is an enlarged cross-sectional view of a sheet material formed of a sheet.

As shown in FIG. 6, a fitting adjustment layer 42 may be provided on the outer peripheral side surface 24a of the base-side convex portion 24 of the mount 12 of the cover body 10, and the fitting adjustment layer 42 is used to make the cover portion 16 The degree of fitting of the cover side convex portion 32 is good. By providing the fitting adjustment layer 42, it is possible to more reliably realize and maintain the sealed state of the inside of the lid body 10 when the lid portion 16 is closed. For the printing of the fitting adjustment layer 42, for example, a hard lacquer, a foamed ink, a microbead, and/or a medium containing fine glass beads can be used. Here, as the foamed ink, for example, a low-temperature heating type foaming ink (model: EK-8017C, WK-204 (C), WK-1117C, etc.) manufactured by Daicel Co., Ltd. can be used. In addition, The fitting adjustment layer 42 may be provided on the inner circumferential side surface of the lid side convex portion 32 of the lid portion 16 or may be provided on both the base side convex portion 24 and the lid side convex portion 32.

The fitting adjustment layer 42 is formed of a flat synthetic resin sheet by printing before the sheet of the lid 10 is formed. Therefore, it is only necessary to add one printing process to the manufacturing process of the lid body 10 described with reference to Fig. 4, and it is possible to suppress an increase in manufacturing cost as compared with injection molding or the like which cannot be printed before molding.

Further, the fitting adjustment layer 42 may be formed by printing the upper surface of the base-side convex portion 24 of the mount 12 . As a result, the base-side convex portion 24 and the flat plate portion 30 of the lid portion 16 are in a tight state, and the sealed state inside the lid body 10 when the lid portion 16 is closed can be more reliably achieved and maintained.

Further, the sheet material P used for the production of the lid body 10 may be formed by laminating the base layer P1 and the barrier layer P2 as shown in Fig. 6, and the base layer P1 is made of, for example, a polypropylene resin. The barrier layer P2 is a material that suppresses the permeation of water, ethanol, flavor, and the like contained in the wet sheet, which is the content of the package 1. The barrier layer P2 can be formed by, for example, a nylon resin, an ethylene vinyl alcohol copolymer resin (EVOH), or the like. Here, the barrier layer P2 may be provided on the inner side surface (the surface facing the mount 12) of the lid portion 16 formed when the lid body 10 is formed, or may be provided opposite thereto (the state in which the lid body 10 is closed) Outside surface. Further, the barrier layer P2 may be laminated between the two layers of the base layer P1 in an interlayer state.

Further, a printed indicator layer indicating, for example, caution in use may be formed on the inner surface of the lid portion 16. In this case, in the case where the content of the package 1 contains a substance such as ethanol, perfume, or oil, it is preferably a printed label layer formed of a functional ink that is resistant to substances such as ethanol.

<Second Embodiment>

Fig. 8 is a plan view and a side view of the lid body 11 for a package according to the second embodiment. The same or similar components as those of the above-described first embodiment of the present invention are given the same or similar reference numerals, and the description thereof will be omitted.

As shown in FIG. 8, the lid body 11 integrally includes a mount 12, a hinge portion 14, and a lid portion 16. Further, the lid body 11 is formed by sheet-forming a sheet made of a transparent synthetic resin. Therefore, when the lid body 10 is placed on the package body 1, the printed label and the sealing sheet 6 which are provided on the top surface 2a of the package body 1 can be seen from the outside through the flat plate portion 30.

In the lid body 11 of the present embodiment, the base-side convex portion 24 is formed to be large along the outer circumference of the mount 12, and the outer flange portion 28 is formed only on the side opposite to the hinge portion 14. In response to this, the opening 22 drawn by the inner peripheral edge portion of the inner flange portion 26 is also formed larger than the lid body 10 of the first embodiment. Further, in the present embodiment, the hot melt material 29 is applied to the back surface of the inner flange portion 26, and then fixed to the top surface 2a of the package 1.

In the base side projection 24 of the mount 12, with the hinge On the outer peripheral side surface on the opposite side of the portion 14, the two engaging convex portions 52 are formed to bulge outward on both sides of the concave portion 28a.

The lid portion 16 of the lid body 11 is not formed with a rectangular frame-shaped convex portion, and the lid portion 16 has a flat plate portion 30 and an outer peripheral wall portion 36, and the outer periphery of the flat plate portion 30 extends in the thickness direction H and is erected. When the lid portion 16 closes the mount 12 , the inner peripheral side surface of the outer peripheral wall portion 36 is a portion fitted to the outer peripheral side surface of the base-side convex portion 24 of the mount 12 . Further, a finger hook portion 40 is formed at an end portion on the opposite side of the hinge portion 14 of the outer peripheral wall portion 36.

The hinge portion 14 of the present embodiment is a flat-plate type member having a bending line 15 (for example, a half-cut line) that is bent when the mounting seat 12 closes the lid portion 16. With the flat-type hinge portion 14 as described above, when the lid portion 16 is opened, it is easy to maintain the state of being opened from the mount 12 to the position rotated by 180 degrees as shown in Fig. 8, and the user takes it from the package 1. When the outlet 5 takes out the wet sheet S, the lid portion 16 is less likely to cause an obstacle.

Further, the lower surface of the pellet hinge portion 14 of the lid body 10 of the first embodiment described with reference to Figs. 2 and 3 is not flat, and it is not easy to manufacture as the attachment surface to the top surface 2a of the package 1. However, since the flat hinge portion 14 of the present embodiment is flat and can be attached to the top surface 2a of the package 1 by hot melt adhesive, it can be improved by the expansion of the attachment area. Strength, and also has the advantage of being easy to manufacture.

Further, the outer peripheral wall portion 36 of the lid portion 16 corresponds to the engaging convex portion 52 of the mount 12, and the two engaging recess portions 54 are formed in a concave shape. The two sides of the hook portion 40.

In the lid body 11 of the present embodiment, when the lid portion 16 is closed to the mount 12, the inner peripheral surface of the outer peripheral wall portion 36 of the lid portion 16 is fitted to the outer peripheral side surface of the base-side convex portion 24 of the mount 12. Further, at this time, the engaging convex portion 52 of the base-side convex portion 24 is fitted into the engaging concave portion 54 of the lid portion 16, so that the state in which the lid portion 16 is closed can be maintained.

Since the lid body 11 of the present embodiment is also formed by sheet forming using a sheet made of a synthetic resin, it can be made smaller than the case where the lid body is produced by injection molding of a thermoplastic resin or the like. Resin materials are manufactured at low cost. Therefore, when the contents are used up and the package 1 is to be discarded together with the lid 11, the amount of waste can be reduced to be environmentally friendly and economical.

Further, in the lid body 11 of the present embodiment, the entire flat plate portion 30 of the lid portion 16 is a transparent portion, and the inner side can be seen when the lid portion 16 is closed with respect to the mount 12. Therefore, it can be easily visually confirmed from the outside that the end portion of the wet sheet which protrudes from the take-out opening 5 of the package 1 bites between the lid portion 16 and the mount 12. Therefore, the user can reclose the lid portion 16 after the biting situation is solved, and it is possible to surely prevent the inside of the package 1 from being dried and the entry of dust.

Further, in the lid body 11 of the present embodiment, since the flat plate portion 30 of the lid portion 16 is formed to be transparent and flat, the printed surface of the top surface 2a of the package 1 and the surface of the sealing sheet 6 can be seen transparently. Therefore, since the user can recognize the product name or the like even without printing on the lid body 10, the printing on the lid body 10 can be omitted, and the manufacturing cost can be reduced. advantage.

In the synthetic resin sheet which is the raw material of the lid body 11 for a package of the present embodiment, a sheet made of a synthetic resin containing polypropylene (PP) as a main component can be applied. For example, a highly transparent polypropylene (PP) sheet can be applied to the sheet material, and specifically, HCF500 manufactured by Putian Chemical Co., Ltd. or an improved product thereof can be applied. The characteristics of such a sheet material are shown in Table 1. Table 1 shows (a) transparency, (b) heat resistance, and (c) oil resistance as characteristics of the sheet material of the present invention.

As shown in Fig. 9(a), the highly transparent polypropylene sheet used for the production of the lid body 10 of the present embodiment has A-PET (amorphous polyethylene terephthalate) after sheet formation. The transparency is the same, and it is possible to ensure the transparency of the printed mark or the sheet biting of the top surface 2a of the package 1 described above.

Further, as shown in Fig. 9(b), the highly transparent polypropylene sheet used for the production of the lid body 10 of the present embodiment has a heat-resistant temperature of, for example, 110 °C. Therefore, when the user uses the wet sheet by heating the package 1 in a microwave oven or hot water or the like, deformation of the lid body 10 due to heating can be suppressed.

Further, as shown in Fig. 9(c), the highly transparent polypropylene sheet used for the production of the lid body 10 of the present embodiment has high oil resistance even when the contents of the package 1 contain oil. Therefore, it is possible to effectively suppress deformation of the lid body 10 to which the oil is adhered during heating.

Further, in the above, the case of using a highly transparent polypropylene (PP) sheet as a sheet material for forming a sheet of the lid 11 is used. Although not limited thereto, a sheet material composed of a resin material containing 60 to 90% by weight of a polypropylene resin and 10 to 40% by weight of a high-density polyethylene resin and/or a nylon resin may be used.

Alternatively, a sheet material composed of a resin material mainly composed of A-PET (amorphous polyethylene terephthalate) may be used as the sheet material. In this case, the lid body 11 made of a sheet material mainly composed of A-PET is highly transparent after molding as described in the description of Fig. 9(a), so that the inside of the lid body is excellent in visibility. In addition, for the heat resistance, for example, an A-PET sheet manufactured by POLYTECH Inc., Ltd. is used, and the glass transition point measured by the measurement method JIS-K-7121 is 73 ° C, and the temperature increase rate is 10 ° C / min. When a high heat-resistant sheet of 255 ° C is melted, deformation at the time of heating can be effectively prevented.

Next, a modification of the lid body 11 of the present embodiment will be described.

In the above, although the entire flat portion 30 of the lid portion 16 is a transparent portion, the present invention is not limited thereto, and as shown in FIG. 9, the flat plate portion 30 of the lid portion 16 may be provided with a trade name or a logo design. Printed marking layer 46. Here, in the state in which the lid body 11 is closed, an example in which the product name of "ABCDEFG" is printed around the elliptical transparent window 44 is printed on the inner surface of the flat portion 30 of the lid portion 16 on the side of the mount 12 side. The shape of the transparent window 44 may be other shapes such as a rectangle or a circle. As a result, the design of the cover 11 is improved, and the inner side can be seen through the transparent window 44.

In addition, the printed marking layer 46 as described above is In the case of the above-described fitting adjustment layer 42, the printing is easily performed before the sheet forming. Further, since the printed label layer 46 is printed on the inner side surface of the lid portion 16 and the outer side surface is protected by the transparent sheet material, the lid body 11 is placed on the package body 1 without being damaged by friction.

Further, in the lid body 11 of the present embodiment, the anti-fogging agent may be applied to the entire inner surface of the flat plate portion 30 of the lid portion 16 or the inner surface of the transparent window 44. Thereby, it is possible to suppress the transparent window 44 from being blurred by water vapor or the like when the user performs heating before use.

Further, a back surface side of the printed indicator layer 46 may be covered to provide a background color printed layer 48 composed of, for example, white solid printing. In the example shown in Fig. 9, a strip-shaped elliptical shape surrounding the periphery of the transparent window 44 is formed. By thus providing the background color print layer, the printed design layer 46 can be more clearly seen, and the design of the cover 11 is improved. Here, in the case where the content of the package 1 contains a substance such as ethanol, perfume, or oil, it is preferable that the background color printing layer 48 that functions to protect the printing label layer 46 is made of a substance such as ethanol. A tolerant functional ink is formed. Additionally, in this case, the printed indicia layer 46 can also be formed from the same functional ink.

Further, in the above description, the printed label layer 46 and the background color print layer 48 are formed in the strip-shaped region surrounding the transparent window 44. However, the present invention is not limited thereto, and printing may be performed on all areas other than the transparent window 44 of the flat plate portion 30. The marking layer and the background color printing layer.

Further, in the above description, printing is performed so that the transparent window 44 is left on the inner surface of the flat portion 30 of the lid portion 16, but it is also possible Printing is performed on the entire inner surface of the lid portion 16. In this case, the entire printed layer on the inner side surface may be one layer or a plurality of layers, or the printed layer on the side closest to the mount 12 in the state in which the lid portion 16 is closed may be printed with the above functional ink.

Further, the printing indicator layer 46 as described above may be formed by the printing process of the step S2 in the method of manufacturing the lid described with reference to FIG. Further, the process of applying the anti-fogging agent described above is preferably carried out in step S5, which is indicated by a chain line in step S2, in Fig. 4 . Further, the background color printing layer 48 is formed in the printing process of step S6 which is indicated by a chain line in step S5 in FIG.

Claims (4)

A cover for a package body, which is a cover body which is provided in the package body by covering a content take-out opening formed on a surface of a package body for accommodating a content, and has a mount that is fixed to the package body The hinge portion is connected to the mounting seat at one end thereof, and the cover portion is connected to the other end portion of the hinge portion to open and close the mounting seat, and the mounting seat and the cover portion respectively have a fitting portion that is fitted to each other when the cover portion is closed to the mounting seat, and includes a cover body, the hinge portion, and a cover portion of the cover portion, and is made of polypropylene resin or polyethylene terephthalate. A synthetic resin sheet material mainly composed of a resin is integrally formed by sheet forming; the sheet material is made of a transparent resin material, and the lid portion has a transparent portion that can be seen inside when the mounting seat is closed; Printing a mark on at least a portion of an inner side surface of the cover portion opposite to the mounting seat when the cover portion is closed, in a state in which the cover portion is closed It can be seen from the outside of the printed label. The cover for packaging according to claim 1, wherein the printed mark is covered by a background color provided on an inner side surface of the cover portion, and the background color print uses a substance contained in a content of the package. Tolerant functional ink. A cover for a package body, which is provided in the package body by covering a content take-out opening formed on a surface of a package body for accommodating the contents The cover has a mounting seat that is fixed to surround the outlet of the package, a hinge portion that is coupled to the mounting seat at one end, and a cover that is coupled to the other end of the hinge portion and configured to be Opening and closing the mounting seat, the mounting seat and the cover portion respectively have fitting portions that are fitted to each other when the cover portion is closed to the mounting seat, and include the mounting seat, the hinge portion, and the cover portion of the cover portion a sheet made of a synthetic resin mainly composed of a polypropylene resin or a polyethylene terephthalate resin, which is integrally formed by sheet forming; and the fitting portion and the fitting portion of the lid portion At least one of them is provided with a fitting adjustment layer made of hard lacquer or foamed ink. A package body having a lid body, comprising: a package body; a take-out port for accommodating contents and having a content formed on a surface thereof, wherein the take-out port is sealed by a sealable sealing sheet; and a cover for the package body The cover for a package according to any one of claims 1 to 3, wherein the sealing sheet is covered and fixed to the surface of the package.