WO2005009868A1 - Cover body for sealing container with excellent unsealing retainability - Google Patents

Cover body for sealing container with excellent unsealing retainability Download PDF

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Publication number
WO2005009868A1
WO2005009868A1 PCT/JP2004/010494 JP2004010494W WO2005009868A1 WO 2005009868 A1 WO2005009868 A1 WO 2005009868A1 JP 2004010494 W JP2004010494 W JP 2004010494W WO 2005009868 A1 WO2005009868 A1 WO 2005009868A1
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WO
WIPO (PCT)
Prior art keywords
lid
container
layer
cut
half
Prior art date
Application number
PCT/JP2004/010494
Other languages
French (fr)
Japanese (ja)
Inventor
Seiji Kagawa
Original Assignee
Kagawa, Atsuko
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2003280364 priority Critical
Priority to JP2003-280364 priority
Application filed by Kagawa, Atsuko filed Critical Kagawa, Atsuko
Publication of WO2005009868A1 publication Critical patent/WO2005009868A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10Container closures formed after filling
    • B65D77/20Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • B65D77/206Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened so as to uncover one or more preformed openings made through some layers of the cover
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2577/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10Container closures formed after filling
    • B65D2577/20Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041Pull tabs
    • B65D2577/205Pull tabs integral with the closure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2577/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10Container closures formed after filling
    • B65D2577/20Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075Lines of weakness or apertures
    • B65D2577/2091Lines of weakness or apertures in cover

Abstract

A cover body (2) for sealing a container having a paper sheet (204), a curling plastic layer (201), and partially easily peelable layers (23) and sealed to the container with the paper sheet (204) positioned on the lower side of the curling plastic layer (201), comprising an unsealing tab part (21) formed at the outer peripheral edge of the cover body and breaking start points (22a) and (22b) formed on both sides of the unsealing tab part (21), wherein the partially easily peelable layers (23) are formed on the outsides of extension lines (220a) and (220b) from the breaking start points in the breaking direction.

Description

 Specification

 Container sealing lid with excellent openability

 Technical field

 [0001] The present invention relates to a lid having excellent openability and being suitable for use in containers for instant foods and the like.

 Background art

 [0002] The lid of a container for storing ready-to-eat foods such as cup noodles and instant yakisoba is easy to pouring when opened and can be easily sealed while being held for about 3 minutes. Is preferred. In order to facilitate pouring at the time of opening, it is necessary that the opened lid is strongly curled and the opened state is maintained. In order to facilitate resealing, it is necessary that the opening portion (flap portion) of the lid is easily engaged with the remaining portion of the lid or the container body, and the flap portion is held in a sealed state. It is.

 [0003] Concerning the unsealing retention, Japanese Patent Application Laid-Open No. 2002-302154 (Patent Document 1) discloses a lid sealed to an upper end flange portion la of a container main body 1 for storing contents as shown in FIGS. A lid 200 is disclosed which has an opening tab portion 21 and tearing start points 22a and 22b provided on both sides of the opening tab portion 21. Since the lid 200 is made of at least a laminated sheet having a paper sheet with a dead hold property and a sealant film, when the tab 21 for opening is lifted, as shown in FIG. 32, the lid 200 is extended at the tear start points 22a and 22b. The strip is torn along the lines 220a and 220b to form a strip flap 3. The remaining side edges 2a and 2b of the lid 2 and the side edges 3a and 3b of the strip-shaped flapper 3 are jagged because the tear surface of the paper sheet is exposed. Therefore, after pouring in a state where the flap portion 3 has risen, when the flap portion 3 is resealed, the jagged side edges 2a and 2b of the lid 200 and the jagged side edges 3a and 3b of the band-shaped flap portion 3 are formed. Are engaged, and the flap portion 3 is tightly resealed. However, since the lid 200 has only the paper sheet as the dead-holding property-imparting layer, it was found that the rising of the flap portion 3 may not be sufficient.

[0004] Japanese Patent Application Laid-Open No. 2004-83099 (Patent Document 2) discloses a polybutylene terephthalate (PBT) film, a paper sheet, and a A cover 300 made of a laminated sheet having a sealant film is disclosed. Since the lid 300 has a PBT film having excellent dead-hold properties, the curl of the flap portion 3 is superior to the lid described in Patent Document 2. However, since the lid 300 has the flap portion 3 on the entire lower surface side of the paper sheet, for example, when the lid body 300 has a highly rigid resin film or the like on the lower surface side of the paper sheet, the lid 300 has It turned out that the rise was not always enough.

Patent Document 1: JP-A-2002-302154

 Patent Document 2: JP-A-2004-83099

 Disclosure of the invention

 Problems to be solved by the invention

 [0006] Therefore, an object of the present invention is to provide a lid suitable for containers of instant foods and the like having a sufficient dead-hold property to hold an opened state.

 Means for solving the problem

 [0007] As a result of intensive studies in view of the above object, the present inventor has found that the flap portion obtained by opening the lid has a plastic layer having a large curl property on the entire surface, and does not have the entire layer portion on the entire surface. The present inventors have found that the provision of a partially easy-peeling layer can achieve excellent openability due to large curling properties, and reached the present invention.

 That is, the first container sealing lid of the present invention has a paper sheet, a curable plastic layer, and a partially easily peelable layer, and the paper sheet is positioned below the curl plastic layer. The opening tab portion provided on the outer peripheral edge, and the tear starting points provided on both sides of the opening tab portion, and the partial easy peeling layer is provided with the tear tab. It is characterized by being provided outside the tearing direction extension line of the starting point.

 [0008] It is preferable that the partial easily peelable layer is formed from the tear starting point to a position beyond the center of the lid. Preferably, the lid is provided with a peel stop mark, and the partial easily peelable layer is formed from the tear starting point to the position of the peel stop mark.

[0009] It is preferable that a half force for opening is provided on the lower side of the lid along each extension line in the tear direction at the tear start point. The start end of the opening half-cut is Preferably, it is slightly separated from the point. The lid is composed of a laminated sheet having at least a curable plastic film, a paper sheet, and a heat-sealing film in order from the upper surface, and the opening half cut reaches at least the paper sheet in the laminated sheet. Preferably. The opening half-cut preferably reaches a depth of at least about 30% of the thickness of the paper sheet.

 [0010] The second container sealing lid of the present invention has a paper sheet, a curable plastic layer, and a partially easily peelable layer, and the paper sheet is positioned below the curl plastic layer. A container sealing lid sealed to a container, comprising: an opening tab provided on an outer peripheral edge; a tab cut-off half-cut provided on a lower surface side of the opening tab; A pouring hole forming annular half cut engraved below the lid at a center side of the peeling half cut, and the partially easy peeling layer surrounds the pouring hole forming annular half cut. It is characterized by being provided as follows.

 [0011] It is preferable that the partial easy peeling layer is formed from the half cut for peeling off the tab portion to a position beyond the center of the lid. It is preferable that a peeling stop mark is provided on the lid body, and the partial easy peeling layer is formed from the half cut for peeling off the tab portion to the position of the peeling stop mark.

 [0012] The third container sealing lid of the present invention affixed to the instant food container to be drained after pouring has the following features in addition to the features of the first or second lid. That is, the container sealing lid has a hot water cutout forming tab portion, and the hot water cutout forming tab portion has a pair of cuts and the open end facing inward between the pair of cuts. A plurality of substantially U-shaped half cuts engraved on the lower side of the body, wherein each U-shaped half cut comprises a pair of linear portions and a connecting portion of both linear portions, Both the cut and the front end of the U-shaped half cut are located in the seal portion of the lid, and the hot water cutout is formed from the portion surrounded by the U-shaped half cut and the tips of the pair of straight portions. Between the straight lines extending in the opening direction of the tab portion, a partially easy peeling layer for forming a hot water cutout is provided.

[0013] The direction of easy tearing of the lid substantially coincides with the direction of the cut, and when the lid is peeled off from the container body with the hot water cutout forming tab portion, the cut is formed. And the lid is torn from the tip of the U-shaped half cut, It is preferable that a portion on the lower surface side of the partially peelable layer for application remains in close contact with the upper end flange portion of the container body so that a plurality of hot water outlets are formed.

[0014] It is preferable that the U-shaped half cut has a depth from the lower surface of the lid to the partial easily peelable layer. It is preferable that the partially cut-off layer for forming the cutout is provided from the U-shaped half-piece to the position of the peeling stop mark for the tab for forming the cutout.

 [0015] It is preferable that the pair of straight portions of the U-shaped half-cut is inclined so that the distance between the straight portions decreases. It is preferable that a pair of line portions that are inclined so as to increase the interval as they go forward are provided at the ends of the pair of cuts.

 [0016] It is preferable that a tip of the cut and a tip of a pair of straight portions of the U-shaped half-cut are located on an outer peripheral side with respect to a center line of a seal portion of the lid. It is more preferable that the positions of the leading end of the cut and the leading ends of the pair of straight portions of the U-shaped half-cut in the seal portion are within a range of 30 to 50% of the width of the seal portion from the outer periphery.

 [0017] It is preferable that a half cut for forming a hot water cutout is provided on a straight line extending in the opening direction from each end of the cut. It is preferable that a half cut for forming a hot water outlet is provided below the lid along a straight line extending from each end of the U-shaped half cut in the opening direction.

 [0018] The fourth container sealing lid of the present invention, which is affixed to the instant food container to be drained after pouring, has the following features in addition to the features of the first or second lid. That is, in this container sealing lid, (a) a plurality of rectangular cutout forming half cuts are engraved on the lower side of the lid at a position substantially opposed to the opening tab. b) The partial easily peelable layer extends in the opening direction from the tearing start point of the opening tab portion and is connected in a region inside the opening tab portion or a region beyond the center of the lid. And (c) a region not having the U-shaped partially easily peelable layer, and the U-shaped partially easily peelable layer. A half-cut for layer separation is engraved on the lower side of the lid along a boundary substantially orthogonal to the opening direction among the boundaries with the region having the opening.

[0019] The U-shaped partially easy peeling layer has a boundary with a region having no U-shaped partially peelable layer in the opening direction. It is preferable that the substantially perpendicular boundary is provided so as to be curved toward the center of the lid.

 [0020] Preferably, each of the first to fourth container sealing lids has a polybutylene terephthalate film as the curable plastic layer.

 [0021] Each of the first to fourth container sealing lids has a curable plastic layer, a paper sheet, an adhesive layer, a rigid plastic film, and a sealant layer from the upper surface side, and the partially easily peelable layer is It is preferably provided on the adhesive layer. The rigid film is preferably made of a biaxially oriented polyethylene terephthalate film having a uniaxial orientation or a different degree of orientation. Preferably, the partial easily peelable layer is on the upper surface or the lower surface of the adhesive layer, or is in the same plane as the adhesive layer. It is preferable that an adhesive plastic (for example, polyethylene) film is provided on both sides of the partially easy release layer so that the paper sheet is not exposed on the release surface.

 The invention's effect

 The container sealing lid of the present invention has a large curl property because the flap portion obtained by opening has a plastic layer having a large curl property on the entire surface and does not have the entire layer part on the entire surface. This makes it possible to utilize the excellent open holding property. Therefore, at the time of opening, the flap portion can be maintained in a large raised state so that pouring is easy. Further, when the partially easy peeling layer is provided on the upper surface side of the paper sheet, the jagged broken surface of the paper sheet is exposed at the flap portion obtained by opening, and excellent re-engagement due to engagement of the jagged broken surface of the paper sheet is achieved. Sealability can also be used. Therefore, at the time of keeping the temperature, the flap portion is simply returned to the original position, and the lid is brought into firm engagement with the lid, so that the resealed state can be reliably maintained. As described above, the lid having the partially easily peelable layer on the upper surface side of the paper sheet is excellent in both the openability and the resealability.

 [0023] The lid of the present invention having such characteristics is suitable as a lid for instant food such as a cup い which is poured with hot water and eaten. The food container provided with a lid having excellent curling properties of the present invention is also useful as a small container for containing a flavor additive that can be used only for ready-to-eat foods.

Brief Description of Drawings FIG. 1 is a perspective view showing a container sealing lid according to one embodiment of the present invention attached to a cup ramen container.

 FIG. 2 is a plan view showing the lid of FIG. 1.

 FIG. 3 is a bottom view showing the lid of FIG. 1.

 FIG. 4 is an enlarged cross-sectional view taken along the line A—A in FIG. 2.

 FIG. 5 is an enlarged sectional view showing a portion X in FIG. 4.

 FIG. 6 is an enlarged sectional view taken along line B_B of FIG. 5.

FIG. 7 is an enlarged sectional view showing another layer configuration of the lid.

Garden 8] is a perspective view showing a state where the lid of FIG. 1 attached to the cup ramen container is opened. FIG. 9 is a perspective view showing a state where the lid of FIG. 1 attached to the cup ramen container is opened and then resealed.

FIG. 10 is a plan view showing a lid according to another embodiment of the present invention.

[Garden 11] FIG. 11 is a plan view showing a state where the flap portion formed by opening the lid in FIG.

 FIG. 12 is an enlarged cross-sectional view taken along the line CC of FIG. 10.

FIG. 13 is a plan view showing a lid according to still another embodiment of the present invention.

FIG. 14 is a bottom view showing the lid of FIG. 13.

FIG. 15 is a partially enlarged view showing the vicinity of a hot water cutout forming tab portion of the lid of FIG.

FIG. 14 is another partially enlarged view showing the vicinity of the hot water cutout forming tab portion of the lid of FIG.

FIG. 17 is an enlarged sectional view taken along the line D_D in FIG. 13.

FIG. 18 is an enlarged cross-sectional view taken along line EE of FIG. 13.

Garden 19] is a partially enlarged view showing a state in which the hot water cutout forming tab portion of FIG. 13 is opened.

FIG. 20 is a plan view showing a lid according to still another embodiment of the present invention.

FIG. 21 is a bottom view showing the lid of FIG. 20.

FIG. 22 is an enlarged sectional view taken along line FF of FIG. 20.

FIG. 23 is an enlarged sectional view taken along line G_G in FIG. 20.

FIG. 21 is a perspective view showing a state in which a flap portion formed by opening the lid of FIG. 20 attached to the instant noodles container is removed. FIG. 25 is a perspective view showing a lid according to still another embodiment of the present invention attached to a cup ramen container.

FIG. 26 is a perspective view showing a lid according to still another embodiment of the present invention attached to a cup ramen container.

FIG. 27 is a perspective view showing a lid according to still another embodiment of the present invention attached to a container for instant yakisoba.

FIG. 28 is an enlarged sectional view showing still another layer configuration of the lid of the present invention.

FIG. 29 is an enlarged sectional view showing still another layer configuration of the lid according to the present invention.

 FIG. 30 is a plan view showing a state in which a plurality of lids are punched from a laminated sheet.

FIG. 31 is a perspective view showing an example of a conventional lid attached to a cup ramen container.

FIG. 32 is a perspective view showing a state where the lid of FIG. 31 attached to the cup ramen container is opened.

Explanation of symbols

1 Container body

 la '· · · top flange

2, 200, 300 ... lid

 2a, 2b, 2c '' 'Jagged fracture surface of paper sheet

 20 laminated sheets

 201 ··· Curl plastic film

 202, 203, 203a, 203b, 205, 206, 206a, 206b, 209, 210

 204 paper sheets

 207 Rigid plastic film

 208 light-shielding ink layer

 211 ... Sealant film

 212 ··· Aluminum foil

 21 Opening tab

 22a, 22b '··· Start point of tearing (cut)

220a, 220b—Extension line of the starting point of the tear 221 ... Slit-shaped through hole

 222: Separate opening tab

 23, 23a, 23b, 23c '

 30 world

24a, 24b '··· Half cut for opening

 240a, 240b '··· Start end of opening half cut 24c --- Circular half cut for pouring hole 24d-

2 4 6 · · · Half cut for layer separation

 25 Seal part

 25a '··· Center line of seal

26, 260 ... mark

27.

28a, 28b '"Break

 280a, 280b '

 281a, 281b-- 'Bevel slope

 282

283

29

 290

 291

 292 ... Extension line

293

 293 '·································································································································

31 All layers of flap

32, 32a, 32b ' 3a, 3b, 3c '''Jagged fracture surface of paper sheet layer

 10 · · · Part that peels off near the hot water cutout forming tab (hatched part)

 11

 12

 125Releaseable resin

 BEST MODE FOR CARRYING OUT THE INVENTION

The structure of the lid according to the present invention will be described with reference to the accompanying drawings. Unless otherwise specified, the same parts as those shown in FIGS. 31 and 32 are denoted by the same reference numerals. Therefore, please refer to the description of the lid shown in FIGS. 31 and 32.

[0027] [1] Structure of lid

 (1) First lid

 FIG. 13 shows a first lid of the present invention. The lid 2 attached to the cup ramen container 1 has an opening tab portion 21 and tearing start points 22a and 22b provided on both sides of the opening tab portion 21. Partially easily exfoliated layers 23a and 23b are provided outside the tearing direction extension lines 220a and 220b of the pair of tear starting points 22a and 22b. The tear start points 22a and 22b can be cut or notched. In the present embodiment, a description will be given below by taking a cut as an example of the tear starting points 22a and 22b.

[0028] The distance d between the pair of cuts 22a and 22b can be set as appropriate according to the type of the content. For example

 1

 In the case of a cup ぐ poured with hot water, if the outer diameter of the upper end flange la of the container body 1 is about 10 cm, the distance d between the cuts 22a and 22b is about 4 cm.

 It is preferable that it is 1 cm to 8 cm. In order to completely open the lid 2 at the time of eating, another opening tab may be integrally provided on the lid 2 at a position facing the outer peripheral edge.

 [0029] As shown in FIG. 2, the tips of the pair of cuts 22a and 22b are provided with lids for sealing the contents.

 Located at the seal part 25 of 2 (the part that is heat-sealed to the upper end flange la of the container body 1)

[0030] When the continuous laminated sheet 20 is punched out and the lid 2 is manufactured at a high speed, the tolerance is about lmm. Therefore, the ends of the pair of cuts 22a and 22b are connected to the center line 25a of the sealing portion 25 of the lid 2. The outer peripheral force, which is more preferably on the outer side, is more preferably in the range of 30 to 50% of the width of the seal portion 25, and is preferably in the range of 30 to 40% of the width of the seal portion 25 from the outer periphery. Especially preferred [0031] It is preferable that the partially easily peelable layers 23a and 23b be formed up to a position exceeding the center 0 of the lid 2. For example, as shown in FIG. 2, the partially easily peelable layers 23a and 23b are formed at least to the position of the peeling stop mark 26.

 As shown in FIG. 3, it is preferable that opening half cuts 24 a and 24 b are engraved on the lower side of the lid 2 along extension lines 220 a and 220 b. By providing the opening half cuts 24a and 24b, the lid 2 can be easily torn. However, the pair of cuts 22a, 22b and the opening ends 240a, 240b of the opening half cuts 24a, 24b must be slightly separated. This is because the lid 2 must be heat-sealed to the container body 1 without any gap before opening. The distance d between the pair of cuts 22a, 22b and the opening ends 240a, 240b of the opening half cuts 24a, 24b is preferably 1 to 10 mm, more preferably 2 to 5 mm. The opening half cuts 24a and 24b are preferably formed up to a position beyond the center 0 of the lid 2. For example, as shown in FIG. 3, the opening half cuts 24a and 24b are peeled off and formed up to the position of the stop mark 26.

 The layer configuration of the lid 2 will be described. In the example shown in FIG. 4, the lid 2 is composed of a curable plastic (PBT) film 201, an extruded laminated polyethylene layer 203a, an adhesive layer 202, an extruded laminated polyethylene layer 203b, a paper sheet 204, and an adhesive layer. 205, an extruded laminated polyethylene layer 206, a rigid plastic (PET) film 207, a light-shielding ink layer 208, an adhesive layer 209, an extruded laminated polyethylene layer 210, and a sealant layer 211. The partially easily peelable layers 23a and 23b are formed as a part of the adhesive layer 202. The half cuts 24a and 24b for opening are formed by penetrating the sealant layer 211, the polyethylene layer 210, the adhesive layer 209, the light-shielding ink layer 208, the rigid plastic film 207, the polyethylene layer 206, and the adhesive layer 205 from the lower surface of the lid 2 to paper. Part of sheet 204 has been reached. The opening half cuts 24a, 24b preferably reach a depth d which corresponds to at least about 30% of the thickness d of the paper sheet 204. Instead of the opening half cuts 24a, 24b, perforations along the extension lines 220a, 220b may be provided only on the paper sheet 22.

In the example shown in FIG. 5, an adhesive layer 202 is formed between a pair of polyethylene layers 203a and 203b between a curable plastic (PBT) film 201 and a paper sheet 204. A part is a partially easy peeling layer 23b. The partially easily peelable layer 23b has a structure in which the point-like peelable resin 125 is uniformly distributed in the adhesive layer 202, as shown in FIG. However, the partially easily peelable layer is not limited to this, and may be a peelable resin layer applied in a thin film form on the upper surface side or the lower surface side of the adhesive layer 202.

 FIG. 7 shows another configuration of the lid 2 of the present invention. In this example, the partially easy release layers 23a, 23b are formed as part of an adhesive layer 205 provided between a pair of polyethylene layers 206a, 206b between the paper sheet 204 and the rigid plastic (PET) film 207. Have been. The opening half cuts 24a and 24b pass through the sealant layer 211, the polyethylene layer 210, the adhesive layer 209, the light-shielding ink layer 208, the rigid plastic film 207, and the polyethylene layer 206b from the lower surface of the lid 2, and reach the adhesive layer 205. are doing.

 When the opening tab 21 of the lid 2 made of the laminated sheet 20 shown in FIG. 4 is lifted, the lid 2 is peeled off from the upper end flange portion la of the container 1 as shown in FIG. The film is torn along 220a and 220b, and the curl plastic (PBT) film 201 is separated from the lower portion of the paper sheet 204 by the partially easily peelable layers 23a and 23b. Since the paper sheet 204 is torn along the extension lines 220a and 220b, the jagged fractured surfaces 2a and 2b are formed on the side of the remaining lid 2, and the jagged fractured surfaces 3a and 3b are also formed on the flap portion 3. . Therefore, as shown in FIG. 9, when the flap portion 3 is resealed, the jagged fractured surfaces 2a and 2b of the lid 2 and the jagged fractured surfaces 3a and 3b of the flap portion 3 are engaged with each other, Ensure that flap 3 is resealed.

 [0037] When the rigid plastic (PET) film 207 of the laminated sheet 20 constituting the lid 2 has easy tearability, the opening half cuts 24a and 24b can be omitted. That is, when the rigid plastic (PET) film 207 of the laminated sheet 20 constituting the lid 2 has an easy tearing property, the easy tearing direction substantially coincides with the tearing direction of the lid 2 so that the lid 2 can be opened. This is because, when the lid 2 is peeled off by holding the tab 21, the lid 2 is easily and linearly torn from the pair of cuts 22 a and 22 b along the easy tearing direction.

Further, in the region of the partially easily peelable layers 23a and 23b, only the curl portions 32a and 32b substantially made of the curl plastic film 201 are attached to both sides of the entire layer portion 31 of the flap portion 3, so that The curl of the flap 3 is very large. Therefore, with the lid 2 kept open, the cup ramen container 1 has a sufficient opening for pouring. in this way The lid 2 having the partially easily peelable layers 23a and 23b on the upper surface side of the paper sheet 204 is excellent in both the unsealing holding property and the resealability.

 [0039] (2) Second lid

 10 and 11 show a second lid of the present invention. 10 and 11, the same members or portions as those in FIGS. 13 are denoted by the same reference numerals. The lid 2 affixed to the cup ramen container 1 includes an opening tab portion 21, a tab portion peeling half cut 24d provided on the lower surface side of the tab portion 21, and a tab side peeling half cut 24d at a center side from the tab portion peeling half cut 24d. It has a pouring port forming annular half cut 24c engraved on the lower side of the lid 2, and a partially easy peeling layer 23 provided so as to surround the pouring port forming annular half cut 24c.

 [0040] It is sufficient that the annular half cut 24c for forming a pouring port has a size sufficient for pouring.

 The pouring port forming annular half cut 24c may be an annular shape so as to form a pouring port, and may have a rectangular shape, a trapezoidal shape or the like other than the elliptical shape as shown in FIG.

 It is preferable that the partially easy-peeling layer 23 be formed from the tab-cutting half-cut 24 d provided on the opening tab 21 to a position beyond the center 0 of the lid 2. For example, as shown in FIG. 10, the partial easily peelable layer 23 is formed at least to the position of the peeling stop mark 26.

 In the example shown in FIG. 12, the lid 2 has the same layer configuration as that shown in FIG. 4, and the partially easy-peeling layer 23 is formed by a pair of curlable plastic films 201 and a paper sheet 204. It is provided as a part of the adhesive layer 202 between the polyethylene layers 203a and 203b. An annular half cut 24c for forming a pouring port and a half cut 24d for separating a tab portion are provided on the lower surface of the lid 2 from the sealant layer 211, polyethylene layer 210, adhesive layer 209, light-shielding ink layer 208, rigid plastic film 207, and polyethylene layer 206. , Through the adhesive layer 205 and the paper sheet 204 to reach the adhesive layer 202.

 For this reason, when the opening tab portion 21 is lifted, as shown in FIG. 11, the curl plastic (PBT) film 201 is separated from the paper sheet 204 by the partial easy-peeling layer 23 from the paper sheet 204. I do. Since the jagged fractured surface 2c is formed on the side of the remaining lid 2 and the jagged fractured surface 3c is also formed on the flap portion 3, the resealing of the flap portion 3 can be ensured similarly to the first lid.

As in the case of the first lid, in the region of the partially easy peeling layer 23, only the curl portion 32 made of the curl plastic film 201 substantially surrounds the entire layer portion 31 of the flap portion 3. , The curl of the flap 3 is very large.

 [0045] (3) Third lid

 FIG. 13 16 shows a third lid of the present invention. In FIGS. 13 to 16, the same members or parts as those in FIGS. 13 to 13 are denoted by the same reference numerals. The cover 2 has (a) a hot water cutout forming tab 27 at a position substantially opposite to the opening tab 21, and (b) a pair of cuts 28 a, 28 b and both cuts 28 a in the tab 27. And a plurality of substantially U-shaped half-cuts 29 engraved on the lower side of the lid 2 at substantially equal intervals between the U-shaped half-cuts 29 and 28b. Between the straight portion 292 and the straight line 292 extending from the tip of the pair of inclined portions 291 of the U-shaped half cut 29 in the opening direction of the tab portion 27 for forming the hot water cutout. It is substantially the same as the first lid except that a release layer 23c is provided, and is attached to the instant fried noodles container 1.

 Each of the cuts 28a and 28b may be linear, but in order to improve tearability, the straight portions 280a and 280b extending from the outer peripheral edge of the lid 2 and the direction of expanding from the straight portions 280a and 280b It is preferable that each of the end portions 281a and 281b be inclined.

 [0047] Each U-shaped half cut 29 is composed of a pair of inclined portions 291 and 291 that are inclined so that the distance between them becomes smaller as going forward, and their connecting portions 290, with the open ends facing inward. Preferably, it is substantially U-shaped, thereby improving tearability. However, the pair of inclined portions 291 and 291 may be parallel straight lines. The number of U-shaped half cuts 29 is preferably 1 to 6, more preferably 2 to 5.

 As shown in FIG. 15, in order to ensure a sufficient heat sealing property, the tip inclined portions 281a and 281b and the inclined portions 291 and 291 must all be located within the seal portion 25 of the lid 2. Nanare.

 [0049] When the continuous laminated sheet 20 is punched out and the lid 2 is manufactured at a high speed, the tolerance is about lmm, so that the tip of the pair of cuts 28a, 28b and the tip of the inclined portion 281a, 281b, and each U-shape. The tip of the inclined portions 291, 291 of the half cut 29 is preferably 30-50 of the width d of the seal portion 25 from the outer peripheral side, which is more preferably on the outer peripheral side than the center line 25 a of the seal portion 25 of the lid 2. within / o

 Ten

The width of the seal part 25 from the outer periphery, which is more preferable, is 30-40. Particularly preferred is in the range of / o. Also, when the lid 2 is peeled off by holding the hot water cutout forming tab 27, the tightness of the strip 11 From the viewpoint of not deteriorating the adhesion, the connecting portion 290 of the U-shaped half cut 29 is preferably located in the seal portion 25.

[0050] In order to shorten the hot water draining time, it is desirable to make the width d of the hot water outlet 12 as wide as possible.

 11

 When this is done, the area of the lid part peeled off from the seal part 25 increases, and the opening resistance increases. The opening resistance is maximum at the start of peeling, and when the peeling area with the seal portion 25 is large, a large initial opening resistance is felt. Therefore, as shown in FIG. 15, the exfoliated area from the seal portion 25 is gradually increased by the tip portions 281a and 281b inclined in the expanding direction and the inclined portions 291 and 291 having a smaller interval as going forward. It is possible to smoothly open the hot water cutout forming tab portion 27 without feeling a large initial resistance.

 [0051] It is preferable that the length of each tip inclined portion 281a, 281b and each inclined portion 291 be 0.5-3 mm. As shown in FIG. 16, the angle Θ between the inclined portions 281a and 281b and the straight portions 280a and 280b, and the angle と between the inclined portion 291 and the straight line 292 are both preferably 120 ° to 170 °. May be the same. If these angles are out of this range, even if the lid 2 is easily tearable, the lid 2 is torn linearly along the direction of easy tearing from each of the inclined portions 281a and 281b and the inclined portion 291. May not be.

 [0052] The distance d between the tips of the inclined portions 291 and 291 is 0.5 to 3 mm larger than the width d of the U-shaped half cut 29.

 12 6

 Preferably it is narrow. Specifically, if the instant food in the container is fried noodles,

The distance d between the tips of 291 and 291 is preferably 6 to 8 mm.

 It is preferably 12 11 to 7 mm.

In the example shown in FIG. 1316, the distance d between the pair of cuts 22a and 22b provided on both sides of the opening tab portion 21 can be appropriately set according to the type of the contents. For example, a cup that pours boiling water.

 Five

 In this case, if the outer diameter of the upper end flange portion la of the container body 1 is about 18 cm, the distance d between the cuts 22a and 22b is preferably about 9-115 cm. Also, U-shaped half cut 29 width d, each cut

It is preferable that the distance d between the U-shaped half cut 29 and the distance d between the U-shaped half cuts 29 is 3 to 10 mm, respectively.

 8

As shown in FIG. 13, it is preferable to form a half cut 283 for forming a hot water outlet on straight lines 282, 282 extending from the respective ends of the cuts 28a, 28b. Further, as shown in FIG. 14, a half-cut for forming a hot water cutout is formed on a straight line 292 extending at the tip end of each inclined portion 291 of the U-shaped half cut 29. Preferably, 293 is engraved. By engraving the half cuts 283 and 293 for forming the hot water outlet, the tearability of the lid 2 is improved. However, from the viewpoint of the sealing property of the lid 2 as described above, as shown in FIG. 15, the leading end of each inclined portion 291 of the U-shaped half cut 29 and the starting end 293 ′ of the half cut 293 for forming a hot water outlet are formed. , Within the seal portion 25. The distance d between the tip of each inclined portion 291 and the starting end 293 'of the half cut 293 for forming a hot water outlet is preferably 1 to 10 mm, more preferably 2 to 5 mm. ,. The ends of the half cuts 283 and 293 for forming the hot water outlet are preferably several cm from the upper end flange.

 When the lid 2 is formed of the easily tearable laminated sheet 20, it is preferable that the direction of easy tearing substantially coincides with the direction of tearing of the lid 2. Thus, when the lid 2 is peeled off by holding the hot water port forming tab 27, the lid 2 extends along the easy tearing direction from the tips of the pair of cuts 28a and 28b and the tips of the U-shaped half cuts 29. Easily and linearly. In addition, when the lid 2 has an easy tearing property, it is possible to omit the half cuts 283 and 293 for forming the hot water outlet.

 In the example shown in FIG. 17, the lid 2 has the same layer configuration as the laminated sheet 20 shown in FIG. 4, and the partially easily peelable layer 23c is a pair of the paper sheet 204 and the rigid plastic film 207. It is provided as a part of the adhesive layer 205 between the polyethylene layers 206a and 206b. The U-shaped half cut 29 is formed by sealing the sealant layer 211, the extruded polyethylene layer 210, the adhesive layer 209, the light-shielding ink layer 208, the rigid plastic (PET) film 207, and the extruded lamination from the lower surface of the lid 2. It penetrates through the polyethylene layer 206b and reaches the adhesive layer 205.

 As shown in FIG. 18, the half cut 283 for forming the hot water outlet is at least about the thickness of the paper sheet 204 which preferably reaches a part of the paper sheet 204 from the upper surface of the lid 2. More preferably, a depth corresponding to 30% is reached. It is preferable that the half cut 293 for forming the hot water outlet reaches the adhesive layer 205 from the lower surface of the lid 2 as in the case of the U-shaped half cut 29.

When the lid 2 is peeled off from the container body 1 by the hatch-forming tab portion 27 and only the portion 10 indicated by hatching, a plurality of hot water outlets 12 are obtained as shown in FIG. The strip 11 composed of the portion surrounded by the half cut 29 and the extension thereof is partially peelable layer 23c. As a result, the portion on the lower surface side of the rigid plastic (PET) film 207 remains in close contact with the upper flange portion la of the container body 1.

 As shown in FIG. 15, it is preferable that a mark 260 indicating a peeling limit is provided on the lid 2 at a position where the instant food (eg, fried noodles) in the container can be efficiently drained without leaking. The position of the mark 260 is preferably set such that the length of the hot water outlet 12 is about 115 cm. The length of the partially easy peeling layer 23c may be substantially the same as the length of the hot water cutout 12 to be formed.

 [0060] The third lid may have the features of the second lid with respect to the function of holding the lid 2 in unsealing.

 (4) Fourth lid

 20 and 21 show a fourth lid of the present invention. 20 and 21, the same reference numerals are given to the same members or parts as in FIGS. The lid 2 is provided with a plurality of rectangular half cuts 294 for forming a hot water cutout at a position substantially opposed to the opening tab portion 21 on the lower side of the lid 2. The easily peelable layer 23 extends in the opening direction from the tear start point of the tab portion 21 with the extension lines 220a and 220b as boundaries, and is connected in a region beyond the center 0 of the lid 2 to form a U-shape, and (C) of the boundary between the region having no U-shaped partially easily peelable layer 23 and the region having the U-shaped partially easily peelable layer 23 It is substantially the same as the first lid except that a half cut 24e for layer separation is engraved on the lower side of the lid 2 along a boundary 230 substantially orthogonal to the opening direction. As shown in FIG. 20, the partial easily peelable layer 23 is preferably provided so that a boundary 230 with a region not having the layer 230 is curved toward the center of the lid 2.

 [0062] The partially easily peelable layer 23 is formed in a region inside the opening tab portion 21 (from the tab portion 21 to the center 0), which is not necessarily intended to be limited to the connection beyond the center 0 of the lid 2. Area).

In the example shown in FIG. 22, the lid 2 has the same layer configuration as that shown in FIG. 4, and the partially easy-peeling layer 23 is formed by a pair of curlable plastic films 201 and a paper sheet 204. It is provided as a part of the adhesive layer 202 between the polyethylene layers 203a and 203b. The half-cut 24e for layer separation is formed from the lower surface of the lid 2 from the sealant layer 211, polyethylene layer 210, adhesive layer 209, light-shielding ink layer 208, rigid plastic film 207, polyethylene layer 206, adhesive layer 205, and paper sheet 204. To reach the adhesive layer 202. Further, as shown in FIGS. 22 and 23, the rectangular half cut 294 for forming the hot water outlet also reaches the adhesive layer 202 from the lower surface of the lid 2.

[0064] For this reason, when eating fried noodles, pour boiling water while keeping the lid 2 open, hold the lid 2 closed for a predetermined time, and then hold the tab 21 for opening. When the lid 2 is further pulled in the opening direction, as shown in FIG. 24, the curl plastic film 201 is entirely separated from the lower surface side of the paper sheet 204 by the partially easily peelable layer 23, and the hot water outlet 12 is opened. Can be formed.

 [0065] The fourth lid may have the feature of the second lid with respect to the function of holding the lid 2 unsealed.

 [0066] (5) Other examples

 The shapes of the first to fourth lids are not limited to those illustrated, and various changes can be made without changing the spirit of the present invention.

 FIG. 25 shows the lid 2 provided with a slit-like through hole 221 at a position corresponding to the outer edge of the upper end flange portion la in the opening tab portion 21. The lid 2 is the same as the first lid except for the slit-shaped through hole 221. In the container provided with the lid 2, when the opened lid 2 is returned to the original closed position, the upper flange portion la can be engaged with the slit-shaped through hole 221 so that the resealability is improved. A cut may be provided instead of the slit-shaped through hole 221.

 FIG. 26 shows an example in which a lid 2 is provided with a slit-shaped through hole 221 and another tab portion 222. The lid 2 is the same as the first lid except for the slit-shaped through hole 221 and the tab portion 222. By opening the tab portion 222 with the slit-shaped through hole 221, the lid 2 can be kept open.

 The lid 2 shown in FIG. 27 is to be affixed to the square instant fried noodle container 1, and the opening tab 21 and the hot water cutout forming tab 27 are provided at substantially diagonal corners. . The structure of the lid 2 itself is the same as that of the third lid.

 [0070] Regarding the hot water discharge function of the third and fourth lids, as described in JP-A-2000-109141, a partially easy-peeling layer is provided in a region having a hot water outlet, and the lower side of the lid 2 is provided. It is good also as the composition which carved a plurality of circular half cuts for forming a hot water cut reaching the easily peelable layer

[2] Layer Configuration of Lid Although the layer configuration of the lid 2 of the present invention is not limited, preferred examples of the layer configuration other than the examples shown in FIGS. 4 and 7 will be described. The laminated sheet 20 shown in FIG. 28 is the same as the laminated sheet 20 shown in FIG. 4 except that it does not have the rigid plastic film 207. The laminated sheet 20 shown in FIG. 29 is the same as the example shown in FIG. 4 except that an aluminum foil 212 is used instead of the light-shielding ink layer 208 as a light-shielding property imparting layer.

Hereinafter, each layer will be described in detail.

 (1) curl plastic film

 The lid 2 of the present invention has a curable plastic film 201 outside a paper sheet 204. As the curl plastic film 201, a polyester film is preferable. Examples of the polyester film include films made of polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN), and the like. PBT and PET films are commercially available at low cost. In particular, a PBT film is preferable because it has excellent dead hold properties, fragrance retention properties, gas barrier properties, and heat resistance.

 [0073] The PBT film is basically a saturated polyester film that is powerful with 1,4-butanediol and terephthalic acid. However, a diol component other than 1,4-butanediol or a cambonic acid component other than terephthalic acid may be contained as a copolymer component as long as physical properties such as heat shrinkage are not impaired. Examples of such a diol component include ethylene glycol, diethylene glycol, neopentyl glycol, 1,4-cyclohexanemethanol and the like. Examples of the dicarboxylic acid component include isophthalic acid, sebacic acid, adipic acid, azelaic acid, and succinic acid. Specific examples of the PBT resin constituting the PBT film include, for example, a homo-PBT resin commercially available from Toray Industries, Inc. under the trade name “Trecon”.

[0074] The PET film is basically a saturated polyester film composed of ethylene glycol, terephthalic acid, and strength. However, a diol component other than ethylene glycol or a cambonic acid component other than terephthalic acid may be included as a copolymer component as long as the properties of the PET film are not impaired. Such diol components include, for example, diethylene glycol, 1,4-butanediol, neopentyl glycol, 1,4-cyclohexanemethanol, etc. And the dicarboxylic acid component includes, for example, isophthalic acid, sebacic acid, adipic acid, azelaic acid, and succinic acid. PET finolems are usually marketed as biaxially stretched films, such as "Lumirror" from Toray Industries, Inc., "Toyobo Ester Film" from Toyobo Co., Ltd., and "Emblet PC" from Unitika Ltd. Being done.

 [0075] The polyester film is not limited to one composed of a single resin component, and may be composed of a plurality of resin components. Examples of the combination of resin components include, in addition to a combination of a plurality of polyester resins, one or two or more kinds of polyester resins to which other thermoplastic resins are added as long as their properties are not impaired. Other thermoplastic resins include polyphenylene sulfide (PPS); polyamide (PA); polyimide (PI); polyamide imide (PAI); polyether sulfone (PES); polyether ether ketone (PEEK); Polycarbonate; Polyurethane; Fluororesin; Polyolefin such as polyethylene and polypropylene; Polyvinyl chloride; Thermoplastic elastomer. For example, when a PBT film is used as the curable plastic film 201, if the PBT resin as the film material contains polyethylene, the film forming property during film production is improved, and the PBT film having excellent uniformity in film thickness is improved. A film is obtained. When another thermoplastic resin is contained, the proportion is preferably 5 to 20% by mass, more preferably 5 to 15% by mass, assuming that the entire polyester film is 100% by mass. — 10% by weight is particularly preferred. Therefore, unless otherwise specified, the terms `` PET film '' and `` PBT film '' used herein refer not only to PET or PBT alone, but also to PET or PBT + other thermoplastic resin compositions. Should be understood to include.

 [0076] The curable plastic film 201 may be made of a plasticizer, a stabilizer such as an oxidizing agent or an ultraviolet absorber, an antistatic agent, a surfactant, a dye, a pigment, or the like, depending on the use of the instant food container. Colorants, lubricants for improving fluidity, and additives such as inorganic fillers may be appropriately contained.

[0077] The thickness of the curling plastic film 201 is practically preferably about 5 to 50 µm. It is technically difficult to make the thickness of the curl plastic film 201 less than about 5 μm. Further, if the thickness of the curling plastic film 201 is set to more than about 50 μm, the cost increases. Preferably, it is 10-30 μΐη. 5 Film with a thickness of about 5-50 / im Has good hold properties, fragrance retention properties and gas barrier properties.

[0078] The thermal shrinkage of the PBT film is preferably 2% or less for both MD (machine direction) and TD (width direction). The heat shrinkage was measured by heating the PBT film to 150 ° C for 10 minutes. 2. Heat shrinkage ratio is 2. PBT films with a size of / 0 or less can be manufactured by air-cooled inflation molding. Examples of a method for producing a PBT film by an air-cooled inflation molding method include a method described in WO 2004/026558.

 When a large number of substantially parallel linear marks and / or a large number of fine holes are formed in the curling plastic film 201, the straight-line tearability of the lid 2 is improved.

 [0080] (2) Transparent resin coating layer

 When a transparent resin coating layer is provided on the upper surface of the PBT film 201, the PBT film 201 acquires transparency and high definition by absorbing fine surface irregularities. Therefore, the printed layer seen through the PBT film 201 becomes beautiful and clear. The transparent resin may be either water-soluble or non-water-soluble, but a water-soluble resin is preferred because an organic solvent is not required. Examples of the water-soluble transparent resin include polyvinyl alcohol, cellulosic polymers, polyvinylpyrrolidone, polyethylene glycol, polyacrylamide and the like. The polyvinyl alcohol may be modified with an anion, a cation, an acetal, or the like, or may be an ethylene-vinyl alcohol copolymer, a partially saponified polyvinyl acetate, or the like. The polymerization degree of the poly (vinyl alcohol) is preferably 1,000 or less.

 [0081] Examples of the water-insoluble transparent resin include an acrylic resin, a polyurethane resin, an epoxy resin, a polystyrene resin, an ultraviolet-curable unsaturated acrylic resin, an ultraviolet-curable unsaturated ester resin, and a polycarbonate resin.

 The thickness of the transparent resin coating layer is not limited, but is preferably 24 μm, more preferably 1 μm to 5 μm. When the thickness of the transparent resin coating layer is less than lzm, the sharpness of printing is not sufficiently improved, and when it exceeds 5zm, the cost increases.

 [0083] (3) Paper sheet

The paper sheet 204 functions as a dead-hold property imparting layer. The type of paper is not limited, and includes synthetic paper. The basis weight of the paper sheet 204 is preferably about 60 to 120 g / m 2 , more preferably about 75 to 110 g / m 2 . When the basis weight of the paper sheet 204 is less than about 60 g / m 2, the paper The seat is too weak to provide sufficient dead hold. On the other hand, even if the basis weight of the paper sheet 204 exceeds about 120 g / m 2 , further improvement in the dead-hold property is not recognized only at the cost increase.

 [0084] (4) Rigid plastic film

 Rigid plastic film 207 preferably comprises a PET film. In order to enhance the straight-line tearability of the lid 2, it is preferable to use a biaxially oriented PET film having a uniaxial orientation or a different degree of orientation as the PET film. Biaxially oriented PET films with different degrees of orientation are commercially available as "Emblet PC" (Unitichika Co., Ltd.). In addition, when a large number of substantially parallel linear marks and / or a large number of fine holes are formed in the rigid plastic film 207, the linear tearability of the lid 2 is improved. It is preferable that the direction of the straight tearability of the lid 2 is parallel to the opening half cuts 24a and 24b. The thickness may be appropriately set as needed.

 [0085] (5) Light-blocking layer

 The lid 2 has a light-shielding ink layer 208 or an aluminum foil 212 to prevent deterioration of the ready-to-eat food due to sunlight or ultraviolet rays. The light-shielding ink 208 is not particularly limited as long as it is an ink containing a black or dark pigment or dye such as carbon black. The light-shielding ink layer 208 has the advantage that there is no adverse effect on the environment during the incineration treatment, and also has the advantage that metal foreign substances in a sealed container can be detected by a metal detector. There is also an IJ point. Therefore, the use of metal detectors that not only enhance the safety of ready-to-eat foods can significantly reduce inspection costs. The aluminum foil 212 has excellent light shielding properties, gas barrier properties, fragrance retention properties, and the like.

 [0086] The thickness of the light-shielding ink layer 208 is not particularly limited as long as it is a force that depends on the concentration of the black pigment or dye in the ink. The thickness of the aluminum foil 212 is preferably 315 μm, more preferably 712 μm.

 [0087] (6) Sealant layer

The layer that is heat-sealed to the upper end flange portion la of the container body 1 is the sealant film 211 or the hot melt layer. The sealant film 211 can be formed from a polyethylene film, an unstretched polypropylene finolem, an ionomer resin film, a polystyrene film, or the like. In addition, the sealant film 211 has an easy-to-use seal so that the lid 2 can be easily peeled off from the container body 1. It is preferable to have a single property. For this reason, it is preferable that the sealant film 211 has relatively weak thermal adhesiveness. A known hot melt can be used.

[0088] As the sealant film 211, for example, a laminated film having a polyethylene base film and a low molecular weight polyethylene film in the order of the paper sheet 204 can be used. The thickness of this polyethylene-based film is preferably about 10-40 μm, more preferably about 20-30 μm. In addition, the thickness of the low molecular weight polyethylene film is preferably about 520 x m, more preferably about 7 to 15 μm. Such a laminated polyethylene film is commercially available, for example, as 760FD (manufactured by Toray Synthetic Film Co., Ltd.). Further, as the sealant film 211, a film made of a mixture of ethylene-vinyl acetate copolymer (EVA) and polyethylene can be used. In the film composed of this mixture, linear low density polyethylene (LLDPE) is preferred as polyethylene. The film thickness of this mixture is also preferably about 10-40 μm, more preferably about 20-30 μΐη. Further, the thickness of the hot melt layer is preferably from 10 to 50 / im, more preferably from 20 to 40 μΐη.

[0089] As the sealant film 211, a linear ethylene 'α-olefin copolymer obtained by copolymerizing ethylene and α-olefin having 3 to 18 carbon atoms [density (JIS 692): 0.870 to 0.910 g / cm 3, MFR QIS K6921, 190. C, 2.16 kg load): 100 g / 10 min] and a sealant film made of a resin composition containing polystyrene (JP-A-2004-26190). When the lid 2 having the heat seal layer made of the sealant film is heat-sealed to the container body 1, both the sealing property and the easy opening property can be achieved.

 [0090] In order to give the lid 2 excellent linear tearability, the sealant film 211 may be formed with a number of substantially parallel linear marks and / or a number of micropores.

 [0091] (7) Adhesive layer

The adhesive layer is not particularly limited, but is preferably made of a film-like plastic having adhesive properties. For example, if the paper sheet 204 has a printed layer such as a character or a pattern on the upper surface, a transparent adhesive should be used for the layers 202 and 203 (203a, 203b) for bonding the rollable plastic film 201 and the paper sheet 204. preferable. The transparent adhesive is not particularly limited as long as it has transparency. For example, a polyurethane resin (for example, trade name “Rock Bond RU-40”, manufactured by Rock Paint Co., Ltd.), an epoxy resin, an acrylic resin, ethylene-butyl resin alcohol Copolymer resins (EVA), polybulacetal resins (eg, polybulformal, polybutyral (PVB resin), modified PVB, etc.), and Shiridani butyl resin.

 [0092] For the adhesive layers 205, 206 (206a, 206b), 208, and 209 below the paper sheet 204, hot menolate, extruded laminated polyethylene, or the like can be used.

 (8) Partial easily peelable layer

 The material forming the partially easy peeling layer 23 (23a, 23b, 23c) is made of acrylic resin, polyamide resin, polyester resin, butyral resin, vinyl chloride vinyl acetate copolymer, ethylene-vinyl acetate copolymer, Nitrified cotton and the like. If necessary, a small amount of silicone or wax may be added. The easily peelable layer can be formed by printing an ink containing the above material on the paper sheet 204 or the PBT finolem 201. The partially easily peelable layer 23 may be formed by coating the upper or lower surface of the adhesive layer, but as shown in FIG. 5, a point-like easily peelable resin is uniformly distributed in the adhesive layer. Is also good. The partially easily peelable layer 23 must be accurately positioned with each of the half cuts 24a to 24e, 29, 283, 293 and 294, so that when forming the raw material of the lid 2 (laminated sheet 20), It is preferable to prepare the sheet 204 or the plastic film 201 by a method such as gravure printing in alignment with the printing layer.

 [0094] [3] Preliminary processing of each film

 (1) Formation of linear marks

 In order to increase the tearability of the lid 2, at least one of the curl plastic film 201, the rigid plastic film 207 and the sealant film 211 is provided with a number of substantially parallel linear marks by the method described below. May be formed.

[0095] In order to achieve both film strength and good linear tearability, it is preferable that the depth of the linear marks be 1 to 40% of the thickness of each film, specifically 0.1 10 zm It is preferred that The width of the linear marks is preferably 0.110 μm, and the interval between the linear marks is preferably 10200 μm.

[0096] In order to form a linear mark on each of the films 201, 207 and 211, for example, a method disclosed in WO 03/091003 can be adopted. In this method, a continuous running film is pressed against a roll or plate having a large number of fine particles with Mohs hardness of 5 or more on its surface while sliding. This forms a number of substantially parallel linear traces on the film. As the fine particles, diamond fine particles are preferable. As a means for pressing the film against the roll or plate, a means for blowing air or a brush sliding on the film is preferable. Since the linear marks obtained by this method penetrate through the film, even if the PET film on which the linear marks are formed is used as the rigid plastic film 207, sufficient fragrance retention and gas barrier properties are obtained. Can be secured.

 [0097] The linear marks are preferably formed entirely on at least one side of each of the films 201, 207 and 211. As a result, each of the films 201, 207, and 211 is provided with a linear tearing property in one direction regardless of the orientation of the film itself. it can.

 [0098] (2) Formation of micropores

 In order to improve the tearability of the lid 2, a large number of fine holes are formed on the entire surface of at least one of the curl plastic film 201, the rigid plastic film 207 and the sealant film 211 by the method described below. Is also good.

[0099] micropores is preferably that having a mean opening diameter and about 500 / cm 2 or more in the distribution density of 0.5- 100 mu m. If the distribution density of the micropores is less than about 500 / cm 2 , the tearability is insufficient. From the viewpoint of film strength, the distribution density of the fine pores is 1 X 10 3 - 1 X 10 4 cells / cm and more preferably 2 instrument 1 X 10 3 5 X 10 3 cells / cm 2 in which the particularly preferable.

 [0100] To form micropores in each of the films 201, 207 and 211, for example, Japanese Patent No.

 The methods disclosed in JP-A-2063411 and JP-A-2002-59487 can be adopted. For example, in the method of Japanese Patent No. 2063411, a first roll (same as the above-mentioned linear mark forming roll) having a large number of fine particles having Mohs hardness of 5 or more having sharp corners and a flat surface are used. Since the film passes while receiving a uniform pressing force between the second roll and the smooth roll, a large number of fine holes are formed in the film. As the second roll, an iron-based roll, a stainless-based roll, a special steel roll, or the like provided with Ni plating, Cr plating, or the like can be used.

[0101] When the fine holes are formed in the sealant film 211, and when the fine holes are provided in the through holes or the non-through holes of the film 207, the viewpoint of the sealing performance of the container is preferable. Masire, By adjusting the pressing force between the first roll and the second roll, one or both of a through hole and a non-through hole can be formed.

 [0102] [4] Method for manufacturing lid

 (1) Manufacturing method of laminated sheet

 For example, when forming the laminated sheet 20 shown in FIG. 4, an adhesive layer including the partially easily peelable layers 23a and 23b is formed on the upper surface of the long paper sheet 204, and an adhesive layer is formed on the lower surface, and the upper surface side is formed. A curable plastic film 201 is laminated on the lower surface, and a laminated film of a rigid plastic film 207, a light-shielding ink layer 208, and a sealant film 211 is laminated on the lower surface side. Each film 207 or 211 may be provided with a large number of substantially parallel linear marks and / or a large number of fine holes as necessary. The easy tear direction of each film 207 or 211 matches the longitudinal direction of the long paper sheet 204.

 [0103] When laminating the curl plastic film 201 on the paper sheet 204, the curl plastic film 201 is stretched in the MD direction within the elastic deformation region (11 to 13% elongation) and adhered to the paper sheet 204. Is preferred. Thereby, curl properties can be imparted to the laminated sheet 20.

 [0104] In order to perform the stretching of 11 to 13%, a tension of 10 to 20 kgf / m width may be applied to the curable plastic film 201. When the curable plastic film 201 is bonded to the paper sheet 204 without being stretched, the tension applied to the curl plastic film 201 is 5 kgfZm or less. PBT is suitable as the resin that can be stretched so as to be elastically deformable.

 [0105] The laminated sheet 20 formed by adhering the curl plastic film 201 to the paper sheet 204 while applying tension thereto has curl property that is warped to the curl plastic film 201. Roll. As a result, the laminated sheet 20 does not substantially curl when unwound (of course, the laminated sheet 20 curls over time). Since the laminated sheet 20 remains flat for a while, there is no hindrance to the punching / heat sealing work on the lid 2. When the heat-sealed lid 2 is peeled off from the container body 1, the lid 2 is in a curled state.

In the case where a PBT film is used as the curable plastic film 201, the curl shape can be stored in the laminated sheet 20 by utilizing the shape memory of the PBT. Write curl shape In order to produce the PBT laminated sheet 20, for example, two methods described in WO 2004/026577 can be adopted.

The first method is (a) shaping (cold working) the laminated sheet 20 containing the PBT film at a temperature T equal to or lower than the glass transition temperature Tg of the PBT while keeping the laminated sheet 20 in a curled shape, and (b) ) Shaped laminated sheet

 1

 G is transformed into a flat shape at a temperature T above Tg, and (c) cooled to a temperature T below Tg.

 twenty three

 It consists of fixing to a flat shape. In the second method, (a) and (i) the laminate sheet 20 containing the PBT film is subjected to a shaping treatment at a temperature T lower than a melting point of more than Tg while maintaining the curl shape.

 Four

 Or (ii) after shaping at a temperature T while holding the PBT film in a curled shape,

 Four

 A laminated sheet 20 having a curl shape is produced by laminating with a film laminate including 204, and (b) the shaped laminated sheet 20 is cooled to a temperature T of Tg or less and fixed in a curl shape, and (c)

 Five

 The shaped laminate sheet 20 is deformed into a flat shape at a temperature T of more than Tg and less than 1 T, and (d) a temperature of Tg or less.

 4 6

 Cooling to a degree τ and fixing it to a flat shape. The shape memory PBT laminated sheet 20 produced by these methods has a flat force, and then the punched / heat-sealed lid 2 has recovered its curl properties.

[0108] (2) Punching / half-cut processing

 As shown in FIG. 30, when the laminated sheet 20 is placed with the curable plastic film 201 side up and punched / half-cut with a plurality of punches, a plurality of lids 2 can be manufactured at once. it can. The punching / half-cut processing itself can be performed by a known method. The direction of the pair of cuts 22a and 22b, the opening half cuts 24a and 24b, the U-shaped half cut 29, and the half cuts 283, 293 and 294 for forming the hot water outlet are aligned with the longitudinal direction of the long paper sheet. Punching and half-cutting may be performed simultaneously or continuously.

 As described above, the present invention has been described with reference to the drawings. The present invention is not limited thereto, and various changes can be made without changing the spirit of the present invention. For example, the position of the partially easily peelable layer in the layer may be anywhere as long as one of the peeled layers has a large curl property.

Claims

 The scope of the claims
A container sealing lid having a paper sheet, a curl plastic layer, and a partially easily peelable layer, wherein the paper sheet is placed below the curl plastic layer and sealed in a container. It has an opening tab portion provided on a peripheral edge, and a tear starting point provided on both sides of the opening tab portion, and the partial easily peelable layer is provided outside a tearing direction extension line of the tear starting point. A lid for sealing a container.
2. The container sealing lid according to claim 1, wherein the partial easily peelable layer is formed from the starting point of the tear to a position beyond the center of the lid.
3. The container sealing lid according to claim 1, wherein the lid is provided with a peel stop mark, and the partial easily peelable layer is provided with the peel stop mark from the tear start point. A container sealing lid formed to a position.
The container sealing lid according to any one of claims 13 to 13, wherein an opening half cut is provided below the lid along each tearing direction extension line of the tear start point. A lid for sealing containers.
5. The container sealing lid according to claim 4, wherein a starting end of the opening half cut is slightly separated from the tear starting point.
6. The container sealing lid according to claim 4, wherein the lid comprises a laminated sheet having at least a curable plastic film, a paper sheet, and a heat-sealing film in order from the top, and the half-cut for opening. A container sealing lid at least reaching the paper sheet in the laminated sheet.
7. The container sealing cover according to claim 6, wherein the opening half-cut reaches a depth of at least about 30% of a thickness of the paper sheet. . A container sealing lid having a paper sheet, a curl plastic layer, and a partially easily peelable layer, wherein the paper sheet is placed below the curl plastic layer and sealed in a container. An opening tab portion provided on a peripheral edge, a tab portion peeling half cut provided on the lower surface side of the opening tab portion, and an engraving on the lower side of the lid at a center side of the tab portion peeling half cut. An annular half-cut for forming a pouring port is provided, and the partial easy peeling layer is provided. A lid for sealing a container is provided so as to surround the annular half-cut for forming a pouring port.
 [9] The container sealing lid according to claim 8, wherein the partial easily peelable layer is formed from the half cut for peeling off the tab portion to a position beyond the center of the lid. Lid for container sealing.
 [10] The container sealing lid according to claim 8 or 9, wherein the lid is provided with a peeling stop mark, and the partial easy peeling layer is formed from the tab section peeling half cut. A lid for sealing a container, wherein the lid is formed up to the position of the peeling stop mark.
 [11] The container sealing lid according to any one of [11] to [10], wherein the lid has a hot water cutout forming tab in addition to the unsealing tab. The tab portion has a pair of cuts, and a plurality of substantially U-shaped half cuts engraved on the lower side of the lid with the open end facing inward between the cuts. The half-cut has a pair of straight portions and a connecting portion of the two straight portions, and both the cut and the tip of the U-shaped half cut are located within the sealing portion of the lid, and the U-shaped A partially cut-off layer for forming a cutout is provided between a portion surrounded by a half cut and each straight line extending in the opening direction of the cutout forming tab from the tip of the pair of straight portions. A container sealing lid.
 12. The instant food container according to claim 11, wherein the easy tearing direction of the lid substantially coincides with the direction of the cut, and thus the lid has the hot water cutout forming tab portion. When the lid is peeled off from the container body, the lid is torn from the cut and the front end of the U-shaped half-cut, and a portion on the lower surface side of the partially easy peeling layer for forming the hot water cutout is an upper end flange of the container body. A container for instant food, wherein the container remains in close contact with the part, and a plurality of hot water outlets are formed.
 13. The instant food container according to claim 11, wherein the U-shaped half cut has a depth from a lower surface of the lid to the partially easily peelable layer. Lolo contents:
[14] The container sealing lid according to any one of [11] to [13], wherein the hot water drain opening is formed. The container sealing lid, wherein the partial easy peeling layer is provided from the U-shaped half cut to the position of the peeling stop mark for the hot water cutout forming tab portion. 15. The container sealing lid according to any one of claims 11 to 14, wherein the pair of straight portions of the U-shaped half force is inclined so that the distance between the straight portions decreases. Lid for container sealing.
The container-sealing lid according to any one of claims 11 to 15, wherein a pair of line portions that are inclined so as to increase the distance toward the end are provided at the ends of the pair of cuts. A lid for sealing a container.
17. The container sealing lid according to any one of claims 11 to 16, wherein a tip of the cut and a tip of a pair of straight portions of the U-shaped half-cut are located around a center line of the seal of the lid. A lid for sealing a container, which is located on the side.
18. The container sealing lid according to claim 17, wherein the positions of the tip of the cut and the tip of the pair of straight portions of the U-shaped half-cut in the seal portion are 30 to the width of the seal portion from the outer periphery. A lid for sealing a container, which is within a range of 50%. The container sealing lid according to any one of claims 11 to 18, wherein a half cut for forming a hot water outlet is provided in a straight line extending from each end of the cut in the opening direction. Lid.
20. The container sealing lid according to any one of claims 11 to 19, wherein a hot water cutout is formed below the lid along a straight line extending from each end of the U-shaped half-piece in the opening direction. A container sealing lid provided with a half cut.
The container-sealing lid according to any one of claims 110, wherein: (a) a plurality of rectangular cutout forming half-cuts are provided on a lower side of the lid at positions substantially opposed to the opening tabs. (B) the partial easy peeling layer extends in the opening direction from the tearing start point of the opening tab portion, and is located in the area inside the opening tab portion or the center of the lid. And (c) a region not having the U-shaped partially easily peelable layer, wherein the region has a U-shape and is surrounded by the region beyond the U-shape. A container characterized in that a half cut for layer separation is engraved on the lower side of the lid along a boundary substantially orthogonal to the opening direction among boundaries with the region having the U-shaped partly easily peelable layer. For sealing Lid.
 22. The container-sealing lid according to claim 21, wherein the U-shaped partially easily peelable layer has a boundary substantially perpendicular to an opening direction in a boundary with a region having no U-shaped partially peelable layer. A container sealing lid provided so as to be curved toward a part.
 23. The container-sealing lid according to claim 122, wherein the curable plastic layer is made of a polybutylene terephthalate film.
 [24] The container-sealing lid according to any one of claims 123, further comprising a curable plastic layer, a paper sheet, an adhesive layer, a rigid plastic film, and a sealant layer from an upper surface side, wherein the partial easy peeling. A container sealing lid, wherein a layer is provided on the adhesive layer.
 25. The instant food container according to claim 24, wherein the rigid film is made of a biaxially oriented polyethylene terephthalate film having a uniaxial orientation or a different degree of orientation.
 26. The container-sealing lid according to claim 24, wherein the partial easily peelable layer is located on an upper surface or a lower surface of the adhesive layer, or on the same plane as the adhesive layer. Cover.
 [27] The container sealing lid according to claim 26, wherein an adhesive plastic film is provided on both sides of the partial easily peelable layer.
PCT/JP2004/010494 2003-07-25 2004-07-23 Cover body for sealing container with excellent unsealing retainability WO2005009868A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003280364 2003-07-25
JP2003-280364 2003-07-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005512032A JP4353944B2 (en) 2003-07-25 2004-07-23 Container sealing lid with excellent opening retention

Publications (1)

Publication Number Publication Date
WO2005009868A1 true WO2005009868A1 (en) 2005-02-03

Family

ID=34100863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/010494 WO2005009868A1 (en) 2003-07-25 2004-07-23 Cover body for sealing container with excellent unsealing retainability

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KR (1) KR20060039406A (en)
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JP2007091317A (en) * 2005-09-30 2007-04-12 Dainippon Printing Co Ltd Lid with hot-water-draining holes
WO2007088436A1 (en) * 2006-02-02 2007-08-09 Soremartec S.A. Package for beverages
WO2008058170A2 (en) * 2006-11-07 2008-05-15 Bionostics, Inc. Container for maintaining stabilized control solution container for single-use control solution including prior use indicator
US7850923B2 (en) 2005-05-04 2010-12-14 Bionostics, Inc. Container for maintaining stabilized control solution and container for single-use control solution including prior use indicator
AT512261A1 (en) * 2011-11-30 2013-06-15 Wiesenegger Gmbh Closure foil with integrated opening
WO2015039927A1 (en) * 2013-09-20 2015-03-26 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing disk for the induction sealing of a container
EP3093257A1 (en) * 2015-05-11 2016-11-16 Seal and Pack Co., Ltd. Container seal
EP3022121A4 (en) * 2013-07-16 2017-02-22 Selig Sealing Products, Inc. Container inner seal with a releasable panel
WO2017160674A1 (en) * 2016-03-14 2017-09-21 Colgate-Palmolive Company Container seal with dual tabs
US10150590B2 (en) 2013-03-15 2018-12-11 Selig Sealing Products, Inc. Inner seal with a sub tab layer
US10196174B2 (en) 2012-09-05 2019-02-05 Selig Sealing Products, Inc. Tamper evident tabbed sealing member having a foamed polymer layer
US10556732B2 (en) 2015-03-03 2020-02-11 Selig Sealing Products, Inc. Tabbed seal concepts
US10604315B2 (en) 2014-02-05 2020-03-31 Selig Sealing Products, Inc. Dual aluminum tamper indicating tabbed sealing member

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JP4658543B2 (en) * 2004-07-14 2011-03-23 加川 敦子 Container sealing lid with excellent opening retention and resealability
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KR200483934Y1 (en) * 2015-12-18 2017-07-26 대상 주식회사 Sealing lid -paper and food container including the same
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CN109648928A (en) * 2018-12-29 2019-04-19 杭州顶正包材有限公司 It is with holes easily to take off film, with holes easily take off film container and manufacturing process

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US7850923B2 (en) 2005-05-04 2010-12-14 Bionostics, Inc. Container for maintaining stabilized control solution and container for single-use control solution including prior use indicator
JP2007091317A (en) * 2005-09-30 2007-04-12 Dainippon Printing Co Ltd Lid with hot-water-draining holes
WO2007088436A1 (en) * 2006-02-02 2007-08-09 Soremartec S.A. Package for beverages
WO2008058170A2 (en) * 2006-11-07 2008-05-15 Bionostics, Inc. Container for maintaining stabilized control solution container for single-use control solution including prior use indicator
WO2008058170A3 (en) * 2006-11-07 2008-11-06 Bionostics Inc Container for maintaining stabilized control solution container for single-use control solution including prior use indicator
AT512261A1 (en) * 2011-11-30 2013-06-15 Wiesenegger Gmbh Closure foil with integrated opening
AT13463U1 (en) * 2011-11-30 2014-01-15 Wiesenegger Gmbh Closing foil with integrated opening
EP2599735B1 (en) * 2011-11-30 2016-04-13 Wiesenegger GmbH Closure film with integrated opening
US10196174B2 (en) 2012-09-05 2019-02-05 Selig Sealing Products, Inc. Tamper evident tabbed sealing member having a foamed polymer layer
US10150589B2 (en) 2013-03-15 2018-12-11 Selig Sealing Products, Inc. Inner seal with a sub tab layer
US10150590B2 (en) 2013-03-15 2018-12-11 Selig Sealing Products, Inc. Inner seal with a sub tab layer
EP3022121A4 (en) * 2013-07-16 2017-02-22 Selig Sealing Products, Inc. Container inner seal with a releasable panel
WO2015039927A1 (en) * 2013-09-20 2015-03-26 Alfelder Kunststoffwerke Herm. Meyer Gmbh Sealing disk for the induction sealing of a container
US10604315B2 (en) 2014-02-05 2020-03-31 Selig Sealing Products, Inc. Dual aluminum tamper indicating tabbed sealing member
US10556732B2 (en) 2015-03-03 2020-02-11 Selig Sealing Products, Inc. Tabbed seal concepts
AU2016262240B2 (en) * 2015-05-11 2019-04-18 Seal and Pack Co., LTD Container sealing member, and method for producing same
EP3093257A1 (en) * 2015-05-11 2016-11-16 Seal and Pack Co., Ltd. Container seal
WO2017160674A1 (en) * 2016-03-14 2017-09-21 Colgate-Palmolive Company Container seal with dual tabs

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JP2009263010A (en) 2009-11-12
KR20060039406A (en) 2006-05-08
JPWO2005009868A1 (en) 2006-11-02
JP4353944B2 (en) 2009-10-28
CN1829642A (en) 2006-09-06

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