JP2015071441A - Lid body for package, package equipped with the same, and method for manufacturing lid body for package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid body for a package capable of being inexpensively manufactured with a small amount of resin material.SOLUTION: A lid body 10 is attached to a package so as to cover an outlet for a content formed on a surface of the package for storing the content, and includes an attaching base 12 fixed so as to surround the outlet of the package, a hinge part 14 one end part of which is connected to the attaching base 12, and a lid part 16 to which the other end of the hinge part 14 is connected and which is arranged so as to be opened/closed to the attaching base 12. The attaching base 12 and the lid part 16 have respectively fitting parts 24 and 32 which fit to each other when the lid part 16 is closed. The lid body 10 containing the attaching base 12, the hinge part 14 and the lid part 16 is integrally formed by a sheet molding using a sheet material made of a synthetic resin containing a polypropylene resin or a polyethylene terephthalate resin as a main component.

Description

  The present invention relates to a lid for a packaging body that is attached to an outlet of a packaging body that contains contents such as a wet sheet, a packaging body provided with the lid body, and a method for manufacturing the lid body for a packaging body.

  Conventionally, for example, Patent Document 1 describes a flexible container that can be easily opened and closed. The flexible container includes a flexible pouch for containing contents, a flexible sealing member for covering a dispensing opening formed on the surface of the flexible pouch and serving as a contents outlet, and a dispensing container. A rigid sealing element surrounding the opening.

  The flexible sealing member closing the dispensing opening has at least two lifting tabs. The flexible sealing member is bonded to the flexible pouch with a weak adhesive force so that it can be repeatedly peeled. The rigid sealing element also has a base permanently attached to the flexible pouch and a lid connected to the base by a hinge.

  A user attempting to remove contents from the flexible container first opens the lid of the rigid sealing element to expose the flexible sealing member. Subsequently, the user picks and pulls the lifting tab of the flexible sealing member to partially peel the flexible sealing member from the flexible pouch to expose the dispensing opening. Thereby, the user can take out the contents from the exposed distribution opening.

  Thereafter, the user who has removed the amount or number of contents to be used reapplies the flexible sealing member to close the dispensing opening and closes the lid of the rigid sealing element. As a result, the inside of the flexible pouch is in a hermetically sealed state, and moisture and the like contained in the contents are prevented from evaporating and drying.

Special table 2010-522675 gazette

  In the flexible container described in Patent Document 1, the rigid sealing element is firmly bonded to the flexible pouch, so that the flexible container with no contents remains attached with the rigid sealing element. It will be thrown away as trash. Therefore, from the viewpoint of reducing the amount of dust and economy, it is desirable that the rigid sealing member is manufactured at a low cost with as little material as possible.

  The objective of this invention is providing the manufacturing method of the cover body for packaging bodies which can be manufactured in low cost with few resin materials, the packaging body provided with the same, and the lid body for packaging bodies.

  The lid for a packaging body according to the present invention is a lid that is attached to the packaging body so as to cover an outlet for the contents formed on the surface of the packaging body that contains the contents, and the outlet for the packaging body An attachment base that is fixed to surround the attachment base, a hinge portion that is connected to the attachment base at one end portion, and a lid portion that is connected to the other end portion of the hinge portion so as to be opened and closed with respect to the attachment base; Each of the mounting base and the lid includes fitting portions that are fitted to each other when the lid is closed with respect to the mounting base, and the mounting base, the hinge, and the lid The lid body including the lid portion is integrally formed by sheet molding using a synthetic resin sheet material mainly composed of polypropylene resin or polyethylene terephthalate resin.

  In the lid for a packaging body according to the present invention, the sheet material is preferably made of a resin material including a polypropylene resin and at least one of a high-density polyethylene resin and a nylon resin. In this case, the sheet material may be made of a resin material containing 60 to 90% by weight of polypropylene resin and 10 to 40% by weight of high-density polyethylene resin and / or nylon resin.

  Further, in the lid for a packaging body according to the present invention, the sheet material is made of a transparent resin material, and the lid has a transparent portion that can be visually recognized on the inner side when closed with respect to the mounting base. May be.

  In this case, when the lid is closed, a print display is applied to a part of the inner surface of the lid facing the mounting base, and the print display is visible from the outside with the lid closed. Preferably there is.

  In this case, the printed display is covered by background color printing provided on the inner surface of the lid, and the background color printing includes a functional ink having resistance to a substance contained in the contents of the package. It is preferably used.

In the packaging lid according to the present invention, an antifogging agent may be applied to the inner surface of the lid portion that faces the mounting base when the lid portion is closed.
Further, in the packaging lid according to the present invention, when the lid is closed, at least a part of the inner surface of the lid facing the mounting base is printed. A functional ink having resistance to substances contained in the contents of the body may be used.

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

  Moreover, the lid | cover for package bodies which concerns on this invention WHEREIN: The said sheet | seat material may mix a filler with the resin material which has a polypropylene resin as a main component.

  In the lid for a packaging body according to the present invention, a fitting adjustment layer made of hard varnish or foamed ink may be provided on at least one of the fitting portions of the mounting base and the lid.

  Furthermore, in the lid for a packaging body according to the present invention, the fitting portion of the attachment base and the lid portion is in a closed state of the lid portion with respect to the attachment base at a position corresponding to a central portion of the hinge portion. Engaging portions that engage with each other may be provided so as to hold them.

  A packaging body according to another aspect of the present invention is a packaging body for storing contents, wherein a content outlet is formed on the surface, and the outlet is sealed by an openable sealing piece. A package body that is closed and a lid body for a package body having any one of the above-described structures that is fixed to the surface of the package body so as to cover the sealing piece.

  Moreover, the manufacturing method of the cover body for package bodies which is another aspect of this invention is the package body which covers the outlet of the content formed in the surface of the package body which accommodates the content, and is attached to the said package body A method for manufacturing a lid for a mounting base, wherein a sheet material made of synthetic resin is formed into a sheet by either vacuum forming or pressure forming, and is fixed to surround the outlet of the package, Forming step of forming a lid integrally including a hinge to which one end portion is coupled, and a lid portion to which the other end portion of the hinge is coupled so as to be openable and closable with respect to the mounting base; and the sheet molding And a punching step of cutting the lid body and separating the lid body from the sheet material.

  The method for manufacturing a lid for a packaging body according to the present invention further includes at least one of a printing step for applying a printing indication and a coating step for applying an antifogging agent to the surface of the flat sheet material before being formed into a sheet. But you can.

  According to the lid for a packaging body according to the present invention, the lid that integrally includes the attachment base, the hinge portion, and the lid is integrally formed by sheet molding using a synthetic resin sheet material. Thereby, compared with the case where a cover body is manufactured by injection molding etc. of a thermoplastic resin, it can manufacture at low cost with few resin materials. Therefore, the package with such a lid attached is an economically advantageous and environmentally friendly product.

It is a perspective view which shows the package body to which the cover body for package bodies which is the 1st Embodiment of this invention was attached. It is the top view and side view of the cover body for packaging bodies shown by FIG. It is an AA line sectional view of the lid for packing bodies shown in FIG. It is a flowchart which shows the manufacturing method of the cover body for packaging bodies. It is a perspective view which shows roughly the manufacturing process of the package body with the lid body for package bodies. It is an expanded sectional view of the B section in FIG. It is an expanded sectional view of the sheet material before sheet forming. It is the top view and side view of the cover body for packaging bodies which are 2nd Embodiment. It is a table | surface which shows (a) transparency of the sheet | seat material which comprises the cover body for package bodies which is 2nd Embodiment, (b) heat resistance, and (c) oil resistance. It is a top view in the state where the lid for packaging bodies shown in FIG. 8 was closed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to the application, purpose, specification, and the like. In addition, when a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that these characteristic portions are used in appropriate combinations.

<First Embodiment>
FIG. 1 is a perspective view showing a packaging body 1 to which a packaging lid body 10 according to the first embodiment is attached. 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 vertical direction or the vertical direction, and the length direction L and the width direction W correspond to the horizontal direction orthogonal to each other on the horizontal plane. This is the same in other drawings (FIG. 2, FIG. 3, etc.) other than FIG.

  The package 1 is a container that accommodates, for example, a laminated body 7 in which a number of wet sheets (contents) S are laminated in a sealed state. The package 1 is formed of a flexible film material that is impermeable to moisture, alcohol, and the like contained in the wet sheet. As this flexible film material, for example, a film material in which a resin film is laminated on an aluminum foil is preferably used. However, the contents stored in the package 1 may be anything other than the wet sheet. 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 that face in the thickness direction H, and two side surfaces 3a and 3b that face the top surface 2a and the bottom surface 2b integrally and continuously in the width direction W. . Although not shown in FIG. 1, a product name, a logo mark, and the like are attached to the top surface 2 a of the package 1 by printing.

  A vertical seal portion (not shown) is formed on the bottom surface of the package 1 along the length direction. After this vertical seal part is formed into a long belt-like film material that is a base material for the flexible film material that forms the packaging body 1, both side edges in the width direction are joined by, for example, heat sealing. Formed by.

  Both end portions in the length direction L of the package 1 are closed by the lateral seal portions 4a and 4b. The lateral seal portions 4a and 4b are formed by joining the top surface 2a and the bottom surface 2b by, for example, heat sealing. Thus, the package 1 is sealed in a state where the inside is sealed by the vertical seal portion formed on the bottom surface 2a and the horizontal seal portions 4a and 4b formed at both ends in the length direction.

  At the approximate center position of the top surface 2a of the package 1, an outlet 5 is formed to open. In the present embodiment, the outlet 5 is formed in a long hole shape in which both ends in the length direction form an arc shape. However, the shape is not limited to this, and the outlet 5 may be, for example, other shapes such as a rectangular shape, a circular shape, an elliptical shape, or may be formed as a slit by forming only a cut line.

  The outlet 5 of the package 1 is closed in a sealed state by a sealing piece 6 made of a flexible film material. The sealing piece 6 has a substantially similar outer shape that is slightly larger than the outlet 5 and is formed in a size that can cover the entire outlet 5. An adhesive layer is provided on the back surface of the sealing piece 6. Thereby, the sealing piece 6 is bonded onto the peripheral edge of the outlet 5 on the top surface 2 a of the package 1. Since the sealing piece 6 is discarded once peeled off, the adhesive layer does not need to be an adhesive layer that can be repeatedly peeled off. However, it is not limited to this, It is good also as an adhesion layer which can repeat peeling and adhesion | attachment.

  A lid for a packaging body (hereinafter, simply referred to as a “lid”) 10 is adhered to the top surface 2 a of the packaging body 1 so as to cover the sealing piece 6 that closes the outlet 5 and surround the periphery. Is attached. The lid 10 is manufactured by sheet molding using a synthetic resin sheet material. The manufacturing method will be described later.

  2 is a plan view and a side view of the lid 10 shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA of the lid 10 shown in FIG. The lid 10 is integrally provided with a mounting base 12, a hinge portion 14, and a lid portion 16.

  The lid 10 in the present embodiment is formed from a colored and opaque synthetic resin sheet material whose main material is polypropylene resin (PP). This sheet material is suitable for a resin material containing, for example, 30 to 50% by weight of polypropylene resin, 20 to 50% by weight of filler, and 10 to 40% by weight of high-density polyethylene resin (HDPE) and / or nylon resin (NY). Configured.

  More specifically, when the filler is 30% by weight, the first example is PP50% by weight HDPE 20% by weight, the second example is PP40% by weight HDPE 30% by weight, the third example is PP30% by weight HDPE 40% by weight, etc. Is preferred. As a fourth example, PP 50% by weight, filler 40% by weight, NY 10% by weight and the like are also suitable. Thus, it has been confirmed that the shrinkage rate during sheet molding can be suppressed from 1.4 to 1.9% to about 0.4% by mixing filler (for example, talc) or the like with PP.

Here, as the filler, for example, talc, crystalline silica, fused silica, magnesium oxide, magnesium carbonate, titanium oxide, alumina, hydrated alumina, short glass fiber, mica, anhydrous gypsum, barium sulfate, and the like can be used. Specific examples of the talc include a product name “Talc MS-K” (chemical name: hydrous magnesium silicate, chemical formula: 3MgO · 4SiO ₂ · H ₂ O) manufactured by Nippon Talc Co., Ltd.

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

  The mounting base 12 of the lid 10 is a base that is fixed to the top surface 2 a of the package 1. The mounting base 12 is formed in a substantially rectangular frame shape in which two long side portions 18a and 18b and two short side portions 20a and 20b are continuous by four substantially arc-shaped corners. A substantially rectangular opening 22 is formed in the central region of the mounting base 12. The opening 22 is formed in such a size that the entire sealing piece 6 is exposed when the mounting base 12 is disposed so as to surround the sealing piece 6 of the package 1. The shape of the opening 22 is not limited to a substantially rectangular shape, and may be another shape such as a circle or an ellipse.

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

  Further, an engaging convex portion 52 projects from the outer peripheral side surface of the base side convex portion 24 which is located on the side opposite to the hinge portion 14. The engagement convex portion 52 has a function of maintaining the closed state of the lid portion 16 with respect to the mounting base 12 by engaging with an engagement concave portion 54 of the lid portion 16 described later. Here, it is preferable that one set of the engaging convex portion 52 and the engaging concave portion 54 is formed at a position substantially corresponding to the central portion in the length direction of the hinge portion 14. Thereby, when the cover part 16 is closed, both engagement comes to be performed reliably. However, a plurality of sets of the engaging convex portion 52 and the engaging concave portion 54 can be provided.

  On the outer peripheral side of the base-side convex portion 24 of the mounting base 12, an outer flange portion 28 that protrudes along the lateral direction is formed. When the lid 10 is bonded to the top surface 2a of the packaging body 1, the hot melt material 29 to be applied to the back surface side of the outer flange portion 28 is indicated by a number of alternate long and short dashed lines.

  The hinge portion 14 has a strip shape narrower than the attachment base 12 and the lid portion 16 in the length direction L, and one end portion is connected to the edge of the outer flange portion 28 of the attachment base 12 and the other end portion is provided. The lid portion 16 is continuously provided. A bending line 15 that is bent when the lid portion 16 is closed with respect to the mounting base 12 is shown at approximately the center in the width direction of the hinge portion 14. For example, the bending line 15 may be defined by making a notch of a predetermined depth from both sides in the length direction so that the bending line 15 can be easily bent. Alternatively, as shown in the right side view in FIG. It may be defined by forming both sides in the width direction in an arc shape to increase the rigidity, or may be formed as a linear thin portion (for example, a half-cut ruled line).

  The lid portion 16 includes a substantially rectangular flat plate portion 30, a substantially rectangular annular lid-side convex portion (fitting portion) 32 projecting around the outer periphery of the flat plate portion 30, and the outer circumference of the lid-side convex portion 32. The flange part 34 formed along the horizontal direction so as to surround the outer peripheral wall part 36 extending along the thickness direction from the outer peripheral edge part of the flange part 34 is integrally provided.

  On the surface of the flat plate portion 30, that is, the outer surface when the lid portion 16 is closed with respect to the mounting base 12, a print display layer 31 that displays a product name, a logo mark, or the like of the package 1 is formed. . The print display layer 31 is formed by printing on a flat sheet material before being formed into a sheet.

  The lid-side convex portion 32 is formed to be slightly larger than the base-side convex portion 24. Thereby, as shown in FIG. 3, when the lid portion 16 is closed with respect to the mounting base 12, 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 outlet 5 and the sealing piece 6 of the package 1 and is surrounded by the base-side convex portion 24 is closed in a sealed state by the flat plate portion 30 of the lid portion 16. Yes.

  An engagement recess 54 is formed on the inner peripheral side surface of the lid-side convex portion 32 on the side opposite to the hinge portion 14. The engagement recess 54 has a function of holding the lid 16 closed with respect to the attachment base 12 by engaging with the engagement protrusion 52 of the attachment base 12.

  On the outer peripheral wall portion 36 of the lid portion 16, a finger hooking portion 40 bulging outward is formed. Thus, when the user tries to open the lid portion 16 of the lid body 10, the finger can be easily engaged with the finger hooking portion 40 of the lid portion 16. Further, a substantially arc-shaped recess 28 a may be formed in the outer flange portion 28 of the mounting base 12 corresponding to the finger hooking portion 40 of the lid portion 16. By doing in this way, when a user engages a finger | toe with the finger-hanging part 40 of the cover part 16, it can suppress that a nail | claw is caught by the outer side flange part 28 of the attachment base 12, and becomes a safer design.

  Next, the manufacturing method of the lid 10 for package bodies of this embodiment is demonstrated with reference to FIG. FIG. 4 is a flowchart showing a method for manufacturing the packaging lid 10.

  First, in step S1, a corona treatment is performed on one surface of a long web-like or sheet-like synthetic resin sheet material.

  Subsequently, in step S2, the print display layer 31 is formed by printing on the corona-treated surface of the sheet material.

  Next, in step S3, the sheet material is formed into a sheet by vacuum forming (or pressure forming) to form the shape of the lid 10 as shown in FIG.

  Finally, in step S4, the lid 10 is separated from the sheet material by punching. At the time of this extraction process, the opening 22 may be formed in the attachment base 12 of the lid 10 by being perforated. Thereby, manufacture of the lid 10 is completed.

  When the print display layer 31 is not provided on the lid body 10, the above steps S1 and S2 can be omitted.

  Next, with reference to FIG. 5, the manufacturing process of the package body to which the package body lid is attached will be described. FIG. 5 is a perspective view schematically showing a manufacturing process of the package 1 with the lid 10.

  A long web-like flexible film material 9 formed in the package 1 is continuously conveyed in the direction of arrow D. As an upstream process (not shown), the flexible film material 9 is perforated with an outlet 5 at a predetermined interval, and a sealing piece 6 is attached so as to cover it.

  On the other hand, a laminate 7 of a plurality of wet sheets is produced as a separate process. And in a laminated body supply process, it synchronizes with the feed rate of the flexible film material 9 with which the sealing piece 6 was affixed, and the flexible film material 9 in the position corresponding to the sealing piece 6 is provided. Supply inside. Thus, the flexible film material 9 is wrapped around the laminated body 7 while being guided by the guide member 50 and wrapped.

  Subsequently, in the longitudinal sealing step, in a state where the edge portions on both sides in the width direction of the flexible film material 9 are overlapped on the lower side of the laminated body 7, the edge sides are sealed along the feeding direction and vertically A seal portion is formed.

  Then, in the transverse sealing step, after the rear side of the preceding laminated body 7 and the front side of the succeeding laminated body 7 are joined by heat sealing or the like in the lateral direction to form the lateral sealed portions 4a and 4b. The flexible film material 9 is cut at the position of the rear lateral seal portion 4b. Thereby, the bag making of the package 1 for the preceding laminate 7 is completed.

  And if the bag making of each package is completed, the lid 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 already been applied to the outer flange portion 28 of the mounting base 12 of the lid 10. Accordingly, the hot melt material 29 spreads over substantially the entire outer flange portion 28 by suppressing the lid body 10 positioned and positioned on the top surface 2a of the packaging body 1 with an appropriate pressing force. Thereby, the cover body 10 is airtightly fixed to the package body 1, and the package body 1 with the cover body 10 is manufactured.

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

  A user who wants to take out the wet sheet S from the package 1 hangs his / her finger on the finger hook 40 of the lid 16 and lifts it up. Then, as indicated by a broken line in FIG. 3, the fitting between the base-side convex portion 24 of the mounting base 12 and the lid-side convex portion 32 of the lid portion 16 is released, and the lid portion 16 is opened. As a result, the sealing piece 6 of the package 1 is exposed in the opening 22 of the mounting base 12.

  Next, the user picks and removes the end of the sealing piece 6 to expose the outlet 5. Then, a finger is inserted into the package 1 from the exposed outlet 5, the wet sheet S located at the top of the laminate 7 is picked and pulled out of the package 1. Thereby, the user can use the wet sheet S.

  Each wet sheet S accommodated in the package 1 is laminated in a state in which end portions are alternately overlapped with each other adjacent wet sheets. Therefore, when one wet sheet is pulled out, the end portion of the next wet sheet is pulled out in cooperation, so that it is in a state of popping out from the outlet 5 and the user can easily pull out the next wet sheet. Yes.

  When the user finishes taking out the wet sheet S that the user wants to use, the lid 16 is closed with the end of the sheet S protruding from the outlet 5 being placed inside the base-side convex portion 24 of the mounting base 12. If it does so, the inside of the cover body 10 will be in the state airtightly closed by fitting with the cover side convex part 32 and the base side convex part 24 of the cover part 16. FIG. Thereby, drying of the wet sheet S in the package 10, entry of dust, etc. are suppressed.

  As described above, the lid 10 for a packaging body according to the present embodiment is integrally formed by sheet molding using a synthetic resin sheet material, and thus the lid is formed by injection molding or press molding of a thermoplastic resin. Compared with the case of manufacturing, it is easy to reduce the thickness and weight and can be manufactured at low cost with a small amount of resin material. Therefore, when the contents are lost and the package 1 is discarded together with the lid 10, the amount of dust can be reduced and the product becomes environmentally friendly and economical.

  Next, with reference to FIG. 6 and FIG. 7, the modification of the cover body 10 for packaging bodies of this embodiment is demonstrated. FIG. 6 is an enlarged cross-sectional view of a portion B in FIG. FIG. 7 is an enlarged cross-sectional view of a sheet material to be sheet-formed.

  As shown in FIG. 6, the fitting adjustment layer for making the fitting degree with the cover side convex part 32 of the cover part 16 favorable on the outer peripheral side surface 24a of the base side convex part 24 of the mounting base 12 in the cover body 10. 42 may be provided. By providing the fitting adjustment layer 42, the sealed state inside the lid body 10 when the lid portion 16 is closed can be more reliably realized and maintained. For the printing of the fitting adjustment layer 42, for example, a medium containing hard varnish, foamed ink, microbeads and / or glass beads can be used. Here, as the foaming ink, for example, low-temperature heating type foaming ink (model number: EK-8017C, WK-204 (C), WK-1117C, etc.) manufactured by Daicel Corporation can be used. Further, the fitting adjustment layer 42 may be provided on the inner peripheral 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. Also good.

  The fitting adjustment layer 42 can be formed by printing on a flat synthetic resin sheet material before the lid 10 is formed into a sheet. Therefore, it is only necessary to add one printing process to the manufacturing process of the lid 10 described with reference to FIG. 4, and suppress an increase in manufacturing cost compared to injection molding or the like that cannot be printed before molding. Can do.

  Moreover, the fitting adjustment layer 42 may be printed and formed so as to cover the upper surface of the base-side convex portion 24 of the mounting base 12. In this way, the close contact state between the base-side convex portion 24 and the flat plate portion 30 of the lid portion 16 is improved, and the sealed state inside the lid body 10 when the lid portion 16 is closed is more reliably realized. And can be maintained.

  Further, as shown in FIG. 6, the sheet material P used for manufacturing the lid body 10 includes, for example, a base layer P <b> 1 mainly made of polypropylene resin and moisture contained in the wet sheet as the contents of the package 1. In addition, a barrier layer P2 that suppresses permeation of substances such as alcohol and fragrance may be laminated. The barrier layer P2 can be formed of, for example, nylon resin, ethylene-vinyl alcohol copolymer resin (EVOH), or the like. Here, the barrier layer P <b> 2 may be provided on the inner surface (surface facing the mounting base 12) of the lid portion 16 when formed on the lid body 10, or on the opposite side (the lid body 10). May be provided on the outer surface (in the closed state). Further, the barrier layer P2 may be laminated in a sandwich state between the two base layers P1.

  Further, a print display layer for displaying, for example, usage precautions may be formed on the inner surface of the lid portion 16. In this case, when the contents of the package 1 include substances such as alcohol, fragrance, and oil, the printed display layer is preferably formed of a functional ink having resistance to substances such as alcohol.

<Second Embodiment>
FIG. 8 is a plan view and a side view of the package lid 11 according to the second embodiment. Constituent elements that are the same as or similar to those of the lid 10 of the first embodiment described above with reference to FIGS. 1 to 7 are denoted by the same or similar reference numerals, and redundant descriptions are omitted.

  As shown in FIG. 8, the lid 11 is integrally provided with a mounting base 12, a hinge portion 14, and a lid portion 16. The lid 11 is formed by sheet-molding a transparent synthetic resin sheet material. Therefore, when the lid 10 is attached to the packaging body 1, it is possible to visually recognize the printed display or the sealing piece 6 provided on the top surface 2 a of the packaging body 1 through the flat plate portion 30. Yes.

  In the lid body 11 of the present embodiment, the base-side convex portion 24 is formed relatively large along the outer periphery of the mounting base 12, and the outer flange portion 28 is formed only on the side opposite to the hinge portion 14. Accordingly, the opening 22 defined by the inner peripheral edge of the inner flange portion 26 is also formed larger than the lid body 10 of the first embodiment. In the present embodiment, the hot melt material 29 is applied to the back surface of the inner flange portion 26, and is adhesively fixed on the top surface 2 a of the package 1.

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

  The lid portion 16 of the lid body 11 is not formed with a rectangular frame-shaped convex portion, and includes a flat plate portion 30 and an outer peripheral wall portion 36 erected on the outer periphery of the flat plate portion 30 so as to extend in the thickness direction H. Have When the lid portion 16 is closed with respect to the mounting base 12, the inner peripheral side surface of the outer peripheral wall portion 36 becomes a portion that fits with the outer peripheral side surface of the base-side convex portion 24 of the mounting base 12. A finger hook 40 is formed at the end of the outer peripheral wall 36 opposite to the hinge 14.

  The hinge portion 14 of this embodiment is a flat type including a bent line 15 (for example, a half-cut ruled line) that is bent when the lid portion 16 is closed with respect to the mounting base 12. According to such a flat hinge portion 14, when the lid portion 16 is opened, as shown in FIG. 8, the flat hinge portion 14 is easily maintained in an open state up to a position rotated 180 degrees from the mounting base 12. When taking out the wet sheet S from the outlet 5 of the packaging body 1, there exists an advantage that the cover part 16 does not become obstructive.

  Further, the lower surface of the round hinge portion 14 in the lid 10 of the first embodiment described with reference to FIGS. 2 and 3 is not flat and does not become a sticking surface to the top surface 2a of the package 1 and Although there is a problem that it is relatively difficult to manufacture, the flat hinge portion 14 in the present embodiment can be attached to the top surface 2a of the package 1 by hot melt because the lower surface is flat. The adhesive strength can be improved by expanding the area, and there is an advantage that manufacture is easy.

  In addition, two engagement recesses 54 are formed in the outer peripheral wall 36 of the lid 16 on both sides of the finger hook 40 corresponding to the engagement protrusions 52 of the mounting base 12.

  In the lid body 11 of the present embodiment, when the lid portion 16 is closed with respect to the mounting base 12, the inner circumferential surface of the outer circumferential wall portion 36 of the lid portion 16 is formed on the outer circumferential side surface of the base-side convex portion 24 of the mounting base 12. Will fit. At this time, the engagement convex portion 52 of the base side convex portion 24 is fitted into the engagement concave portion 54 of the lid portion 16 so that the closed state of the lid portion 16 can be maintained.

  Thus, since the lid body 11 of the present embodiment is also formed by sheet molding using a sheet material made of synthetic resin, the amount of the resin is smaller than that in the case of manufacturing the lid body by injection molding of a thermoplastic resin or the like. It can be manufactured inexpensively with materials. Therefore, when the contents are lost and the package 1 is discarded together with the lid 11, the amount of dust can be reduced, and the product becomes 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 inside can be visually recognized when the lid portion 16 is closed with respect to the mounting base 12. Therefore, it can be easily confirmed visually from the outside that the end portion of the wet sheet protruding from the outlet 5 of the package 1 is caught between the lid portion 16 and the mounting base 12. Therefore, the user can close the lid portion 16 again after eliminating the bite, and can surely prevent the inside of the packaging body 1 and the entry of dust.

  Moreover, since the flat plate part 30 of the cover part 16 is transparent and flatly formed in the cover body 11 in this embodiment, the printed display on the top surface 2a of the package body 1 and the surface of the sealing piece 6 can be seen through. . Therefore, since the user can recognize the product name and the like without printing on the lid 10, there is an advantage that printing on the lid 10 can be omitted and the manufacturing cost can be reduced.

  As the synthetic resin sheet material that is a raw material of the lid body 11 for a package according to the present embodiment, a synthetic resin sheet material mainly composed of polypropylene (PP) can be suitably used. For example, a highly transparent polypropylene (PP) sheet can be suitably used as the sheet material, and specifically, HCF500 manufactured by Iwata Chemical Co., Ltd. or an improved product thereof can be suitably used. The characteristics of such a sheet material are shown in FIG. FIG. 9 shows (a) transparency, (b) heat resistance, and (c) oil resistance as the characteristics of the sheet material.

  As shown to Fig.9 (a), the highly transparent PP sheet | seat used for manufacture of the cover body 10 of this embodiment has transparency like A-PET (amorphous polyethylene terephthalate) after sheet forming. In addition, it is possible to ensure transparency that allows the above-described top surface 2a of the package 1 and the like to be visually recognized and printed.

  Moreover, as shown in FIG.9 (b), the highly transparent PP sheet | seat used for manufacture of the cover body 10 of this embodiment has a heat-resistant temperature of 110 degreeC, for example. Therefore, when the user uses the wet sheet after heating the package 1 with a microwave oven, hot water, or the like, the lid 10 can be prevented from being deformed by heating.

  Furthermore, as shown in FIG.9 (c), the highly transparent PP sheet | seat used for manufacture of the cover body 10 of this embodiment is equipped with high oil resistance also when the content of the package 1 contains oil. Therefore, it is possible to effectively suppress deformation during heating of the lid body 10 to which oil has adhered.

  In the above description, the case where a highly transparent polypropylene (PP) sheet is used as the sheet material for forming the lid 11 into a sheet has been described. However, the present invention is not limited to this, and the polypropylene resin is 60 to 90% by weight, and Alternatively, a sheet material made of a resin material containing 10 to 40% by weight of high-density polyethylene resin and / or nylon resin may be used.

  Alternatively, the sheet material may be a sheet material made of a resin material mainly composed of A-PET (amorphous polyethylene terephthalate). In this case, the lid 11 manufactured from the sheet material mainly composed of A-PET has high transparency even after molding as described with reference to FIG. Is excellent. In addition, for heat resistance, for example, an A-PET sheet manufactured by Polytech Co., Ltd., at a glass transition point of 73 ° C. measured by the measurement method JIS-K-7121, at a temperature rising rate of 10 ° C./min. If a highly heat-resistant material having a measured melting point of 255 ° C. is used, deformation during heating can be effectively prevented.

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

  In the above description, the entire flat plate portion 30 of the lid portion 16 is a transparent portion. However, the present invention is not limited to this, and as shown in FIG. A print display layer 46 such as a logo design may be provided. Here, for example, a product name “ABCDEFG” is printed around the elliptical transparent window 44 on the inner surface of the flat plate portion 30 of the lid portion 16 on the mounting base 12 side in a state where the lid body 11 is closed. An example is shown. The shape of the transparent window 44 may be other shapes such as a rectangular shape or a circular shape. In this way, the design of the lid 11 can be improved and the inside can be visually recognized through the transparent window 44.

  Further, the print display layer 46 as described above can be printed easily before the sheet is formed as in the case of the fitting adjustment layer 42 described above. In addition, since the printed display layer 46 is printed on the inner surface of the lid portion 16 and the outer surface is protected by the transparent sheet material, it is damaged by rubbing after the lid body 11 is attached to the package body 1. There is no.

  Furthermore, in the lid body 11 of the present embodiment, an antifogging 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 can suppress that the transparent window 44 becomes cloudy with water vapor | steam etc. when a user heats before use.

  Furthermore, a background color printing layer 48 made of, for example, white solid printing may be provided so as to cover the back side of the print display layer 46. In the example shown in FIG. 10, it is formed in a belt-like ellipse shape surrounding the transparent window 44. By providing the background color print layer in this manner, the print display layer 46 can be visually recognized more clearly, and the design of the lid 11 is improved. Here, when the contents of the package 1 include substances such as alcohol, fragrance, oil, etc., the background color printing layer 48 that also functions to protect the print display layer 46 has a resistance to substances such as alcohol. It is preferable that the ink is formed with a reactive ink. In this case, the print display layer 46 may also be formed of the same functional ink.

  In the above description, the print display layer 46 and the background color print layer 48 are formed in a band-like region surrounding the transparent window 44. However, the present invention is not limited to this, and all except the transparent window 44 of the flat plate portion 30. The print display layer and the background color print layer may be formed in the region.

  Further, in the above description, it has been described that the 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 the entire inner surface of the lid portion 16 may be printed. In this case, the printing layer on the entire inner surface may be a single layer or a plurality of layers, and the printing layer closest to the mounting base 12 is printed with the functional ink with the lid portion 16 closed. May be.

  In addition, the print display layer 46 as described above can be formed in the printing step of step S2 in the lid manufacturing method described with reference to FIG. Moreover, it is preferable to implement the process of apply | coating the anti-fogging agent mentioned above as step S5 shown by the dashed-dotted line following FIG.4 in FIG. Further, the background color printing layer 48 can be formed in the printing step of Step S6 indicated by a dashed line following Step S5 in FIG.

  DESCRIPTION OF SYMBOLS 1 Packaging body, 2a Top surface, 2b Bottom surface, 3a, 3b Side surface, 4a, 4b Side seal part, 5 Outlet, 6 Sealing piece, 7 Laminated body, 9 Flexible film material, 10, 11 Cover body for packaging , 12 mounting base, 14 hinge part, 15 bending line, 16 lid part, 18a, 18b long side part, 20a, 20b short side part, 22 opening part, 24 base side convex part, 24a outer peripheral side face, 26 inner flange part, 28 Outer flange portion, 28a Recessed portion, 29 Hot melt material, 30 Flat plate portion, 31, 46 Print display layer, 32 Cover side convex portion, 34 Flange portion, 36 Outer peripheral wall portion, 38 Spatial region, 40 Finger hook portion, 42 Fit Adjustment layer, 44 Transparent window, 48 Background color printing layer, 50 Guide member, 52 Engagement projection, 54 Engagement recess, H Thickness direction, L Length direction, P sheet material, P1 base layer, P2 barrier Layer, S wet sheet, W width direction.

Claims (15)

A lid attached to the package so as to cover the outlet of the content formed on the surface of the package containing the contents,
An attachment base that is fixed to surround the outlet of the package;
A hinge portion connected at one end to the mounting base;
The other end portion of the hinge portion is connected, and a lid portion is provided that can be opened and closed with respect to the mounting base,
The mounting base and the lid each have a fitting portion that fits together when the lid is closed with respect to the mounting base,
The lid including the mounting base, the hinge portion, and the lid portion is integrally formed by sheet molding using a synthetic resin sheet material mainly composed of polypropylene resin or polyethylene terephthalate resin.
Cover for packaging. The lid for a package according to claim 1,
The said sheet | seat material is a cover body for packaging bodies which consists of a resin material containing a polypropylene resin and at least one of a high density polyethylene resin and a nylon resin. In the lid for packaging bodies according to claim 2,
The said sheet | seat material is a lid body for packaging bodies which consists of a resin material containing 60 to 90 weight% of polypropylene resins and 10 to 40 weight% of a high density polyethylene resin and / or nylon resin. In the lid for package bodies as described in any one of Claims 1-3,
The said cover | cover material consists of transparent resin materials, The said cover part has a transparent part which can visually recognize an inner side when closed with respect to the said attachment base, The cover body for packaging bodies. In the lid for packaging bodies according to claim 4,
When the lid is closed, at least a part of the inner surface of the lid facing the mounting base is printed, and the printed display is visible from the outside with the lid closed. Cover for packaging. The packaging lid according to claim 5,
The printed display is covered by background color printing provided on the inner surface of the lid, and the background color printing uses a functional ink having resistance to substances contained in the contents of the package. Lid for use. In the lid for packaging as described in any one of Claims 4-6,
A lid for a packaging body, wherein an antifogging agent is applied to an inner surface of the lid facing the mounting base when the lid is closed. In the lid for packaging bodies according to any one of claims 1 to 6,
When the lid is closed, at least a part of the inner surface of the lid facing the mounting base is printed, and the printed display is resistant to substances contained in the contents of the package. A lid for a packaging body using functional ink. In the lid for packaging bodies according to any one of claims 1 to 8,
The said sheet | seat material is a cover body for package bodies comprised by laminating | stacking the base layer which makes a polypropylene resin the main material, and the barrier layer which suppresses permeation | transmission of the substance contained in the content of the said package body. In the lid for packaging bodies according to any one of claims 1 to 9,
The said sheet | seat material is a cover body for packaging bodies by which the filler is mixed with the resin material which has a polypropylene resin as a main component. In the lid for packaging bodies according to any one of claims 1 to 10,
A lid for a packaging body, wherein a fitting adjustment layer made of hard varnish or foamed ink is provided on at least one of the fitting portions of the mounting base and the lid. In the lid for packaging bodies according to any one of claims 1 to 11,
Each fitting portion of the mounting base and the lid has an engaging portion that engages with each other so as to maintain the closed state of the lid with respect to the mounting base at a position corresponding to the center of the hinge. Provided lid for packaging body. A package for containing the contents, wherein the content outlet is formed on the surface, and the outlet is closed in a sealed state by an openable sealing piece;
The lid for a packaging body according to any one of claims 1 to 11, which is fixed to the surface of the packaging body so as to cover the sealing piece,
A package with a lid. A method for manufacturing a lid for a packaging body that covers the outlet of the content formed on the surface of the packaging body that contains the contents and is attached to the packaging body,
A synthetic resin sheet material is formed by either vacuum forming or pressure forming, a mounting base that surrounds and fixes the outlet of the package, a hinge that is connected to the mounting base at one end, and A sheet forming step of forming a lid integrally provided with a lid that is connected to the other end of the hinge so as to be opened and closed with respect to the mounting base;
A punching process of cutting the lid formed from the sheet and separating the lid from the sheet material;
The manufacturing method of the cover body for packaging bodies containing this. In the manufacturing method of the lid for sachets according to claim 14,
The manufacturing method of the cover body for packaging bodies which further includes at least one of the printing process which gives a printing display, and the application | coating process which apply | coats an antifogging agent to the surface of the flat sheet material before the said sheet | seat shaping | molding.

Images