CN1092593C - Easy to be opened cover of container - Google Patents
Easy to be opened cover of container Download PDFInfo
- Publication number
- CN1092593C CN1092593C CN97109918A CN97109918A CN1092593C CN 1092593 C CN1092593 C CN 1092593C CN 97109918 A CN97109918 A CN 97109918A CN 97109918 A CN97109918 A CN 97109918A CN 1092593 C CN1092593 C CN 1092593C
- Authority
- CN
- China
- Prior art keywords
- lid
- lid stock
- layer
- breakdown
- filler
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 239000000945 filler Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 29
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 230000015556 catabolic process Effects 0.000 claims description 13
- 229920001684 low density polyethylene Polymers 0.000 claims description 7
- 239000004702 low-density polyethylene Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 238000003475 lamination Methods 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 235000012222 talc Nutrition 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims 2
- 239000011147 inorganic material Substances 0.000 claims 2
- 229920000831 ionic polymer Polymers 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 238000007689 inspection Methods 0.000 abstract description 3
- 239000000565 sealant Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 51
- 239000005030 aluminium foil Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 235000008446 instant noodles Nutrition 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered 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
- B32B27/08—Layered 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 synthetic resin
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Closures For Containers (AREA)
- Laminated Bodies (AREA)
- Package Specialized In Special Use (AREA)
Abstract
To provide sufficient rigidity, dead-fold characteristics, and improved foldable property, and prevent warping clue to heat, while a metal detector can be used. A cover material 10 is composed of a film layer 20 formed from a film containing 15-80wt.% of fillers 21 and a sealant layer 30 stacked on one side of the film layer 20. Since the material 10 has the layer 20 containing the fillers 21, rigidity and dead-fold characteristics can be provided even if there is no metal layer and improved foldable property can be obtained. And since there is no need to provide a laminate of a metal layer and base material layer of paper, a metal detector can be used in a quality inspection and warping due to heat can be eliminated.
Description
Technical field
The invention relates to used breakdown lid stock in packings such as instant food and mechanical component.
In recent years, instant food for example has extemporaneous available convenient bowl face.When edible this extemporaneous convenient bowl face, draw the portion of opening of drawing of opening in the formation of lid peripheral region, in case lid is drawn when opening half-open degree, face in the container and apparatus are taken out from bag in the container of packing into, then, in this container, inject boiling water after, again on the cover closing with breakdown, open the open end that parts bending song is buckled in container with drawing, through behind the certain hour, again with the complete breakdown of lid.
Background technology
Extemporaneous instant noodles container like this comprises the bowl body and covers the lid of this vessel.This vessel is made by polystyrene or the like.Lid stock is a kind of laminate in addition, comprises the hypothallus that is formed by paper, by adhesive phase at aluminium foil layer that forms on the hypothallus and the sealing layer that on aluminium foil layer, forms.The lid that forms by this laminate, because aluminium foil layer not only has rigidity, also have and to keep original deformation state unmodified indeformable (complete) property, as aforementioned, though open the opening part that portion's bending song is buckled in container and carry out temporarily sealing by drawing, before content is fully heated, because hot water is awfully hot in the container, and the paper of hypothallus is shunk, the lid K/UP that becomes is unfavorable thus.
In order to eliminate the undesirable part of above-mentioned lid, open in flat 5-395976 communique and the flat 5-016282 communique of Te Kai the spy and to disclose a kind of structure, on the hypothallus of laminate, used its inside to have the extension resin film in space.
Yet,, just used when extending the lid stock of resin film as hypothallus, since het expansion, and make contraction dynamically become complicated, even increased aluminium foil layer, also be difficult to give full play to its integraty, be difficult to warpage, can not will draw exactly once more and open the opening part that the position is buckled in container.The lid of above-mentioned lamination structure owing to have aluminium foil layer, in the quality of item inspection of using this lid encapsulation, can not use metal detector.
With aluminium foil layer and hypothallus formation lamination the time, because the essential adhesive phase that uses, so when forming adhesive phase, need spend a large amount of time and expense.
To this, remove aluminium foil layer, only make lid with hypothallus and sealing layer, the problem of being brought is that rigidity and integraty are very poor, is difficult to warpage, can not be again airtight container exactly.
Summary of the invention
But breakdown lid stock of the present invention is characterized in that having the layer that the resin film by the filler that contains 15-80 weight % forms.
Above-mentioned resin film material is thermoplastic resins such as polypropylene, polyethylene.
Above-mentioned resin film can make by blow moulding, T film casting or rolling process, had better not extend processing.
Equally and since in the film when having the space rigidity reduce, so when making film, had better not form the space.
When above-mentioned filer content less than 15 weight %, the rigidity and the integraty of lid stock are bad.When filer content surpassed 80 weight %, lid stock became very late, and filler and film raw material resin are difficult to mix, and film is made become very difficult.
Filler material preferably can invest the material of rigidity, for example, can use inorganic filling materials such as talcum, mica, clay, calcium carbonate.
The above-mentioned resin film thickness that contains filler is 50～300 μ m, is preferably 50～250 μ m, and 100～250 μ m are better.
As the container lid material, when considering practicality, during its thickness less than 50 μ m, since too thin, with being lid stock, can not obtain enough intensity and integraty, when particularly filer content is too many, be difficult to form.And when surpassing 300 μ m, when thickness was too thick, rigidity was too high, was difficult to carry out warpage.In the present invention, by in resin film, containing filler,, and obtain good warpage with the rigidity and the integraty of abundant raising lid stock.Therefore, with such lid stock, during in order to containers such as the extemporaneous convenient cup of capping faces, owing to can open the position and pay warpage simply, so on the feed the time, can will draw exactly once more and open the opening part that the position is buckled in container closely to drawing.
In the present invention, be preferably on the single face of above-mentioned film and form sealing layer.
Lid stock of the present invention is to seal of vessel by the sealing layer.
As the material that constitutes above-mentioned sealing layer, preferably using polyethylene (L-LDPE), ethylene-vinyl acetate copolymer (EVA), ionic bond poly-mer and other the hot melt of low-density polyethylene (LDPE), linear low density is adhesives etc.
Description of drawings
Fig. 1 is the cross sectional drawing of the present invention's one example.
Fig. 2 is the container schematic cross-sectional views that has above-mentioned example lid stock.
Specific embodiments
According to drawing an example of the present invention is described.
As shown in Figure 1, the lid stock 10 of this example is by thin layer 20 and sealing layer 30 cambium layer laminated structures.
Thin layer 20, its formation are the fillers 21 that contains 15-80 weight % in resins such as polypropylene or polyethylene, with this thin layer that forms.The thickness T of this thin layer 20 is 50～300 μ m.
Sealing layer 30 is laminated on the surface of thin layer 20.The thickness of sealing layer 30 is preferably lower than 50% for total layer thickness, is 1-30% with respect to gross thickness.
The lid stock 10 of this example can be manufactured as follows, the film of a kind of sealing layer 30 of lamination on thin layer 20 single faces that contain filler 21, perhaps, the raw material of sealing layer 30 can be pushed and form the bag be coated with.Perhaps, also the raw material co-extruded of the raw material and the thin layer 20 of sealing layer 30 can be made lid stock 10 with this.
About the lid 10 of this example, because constituting, lid 10 contains thin layer 20, thus can guarantee good rigidity and leak tightness, and can obtain good warpage.Therefore, such lid stock 10 is used for containers such as the extemporaneous convenient cup of capping face, opens the position with warpage,, form sealing lid 10 so on the feed the time, this can be drawn and open the position and be buckled in vessel port place once more exactly owing to can invest simply to draw.
In addition, even metal levels such as aluminium foil layer are not formed lamination, as lid stock, owing to can guarantee favorable rigidity and integraty, so can use metal detector that the goods that used this no metal level lid stock 10 are carried out quality inspection.Equally, when making lid stock 10, saved with adhesive phase metal level and hypothallus have been formed the time of lamination, and reduced the expense of lid stock 10.
And then, lid stock 10 because unlike the container lid material in past, be by heat-shrinkable paper form hypothallus and the laminar structure that forms of heat-swellable aluminium foil layer, so can eliminate, make lid stock produce K/UP owing to these interlayer thermal contractions are different with het expansion.Therefore, with lid stock 10 lid stock as containers such as extemporaneous convenient bowl faces, the lid of sealing again can be because of the heat K/UP of boiling water, thereby has kept sealing dress attitude more exactly.
Equally, contain the thin layer 20 of filler 21, unlike extension film, form complicated het expansion and thermal contraction, so be easy to use.
And then, in thin layer 20,,, simultaneously, also can carry out processing film simply so can make lid stock obtain rigidity and integraty fully exactly owing to contain the filler 21 of 15-80 weight %.
In addition, though the lid stock 10 of above-mentioned example is the two-layer structure of thin layer 20 and sealing layer 30.But the layer structure of lid stock 10 for the thin layer 20 that do not have to extend, even with individual layer, perhaps with the multiple-structure more than three layers, only otherwise damage effect of the present invention, all can adopt.
Embodiment 1
As shown in Figure 2, make the instant noodles container 50 that contains above-mentioned example lid stock 10.This container 50 comprises that lid stock 10 and hot melt adhesion have the vessel 40 of lid stock 10.
Vessel 40 is bowl, forms flange position 41 at opening part.The diameter of this vessel 40 is 10cm.
The thin layer 20 (with reference to Fig. 1) of lid 10 in the membraneous material acrylic resin, cooperates 20 weight % talcums as filler 21, utilizes extrusion molding (shaping of T die cast) to make.The thickness T of this thin layer 20 is 150 μ m.
The laminates of thin layer 20 and sealing layer 30 is that the material ethylene-vinyl acetate copolymer resin (EVA) of sealing layer 30 bag is coated on the surface of thin layer 20, is squeezed into the thickness of 20 μ m.
Equally,, adhere to the opening part of vessel 40, make container 50 by sealing layer 30 hot melts with the peripheral position of lid stock 10.
For this container 50, estimate the sealing state again of lid stock 10.That is, draw and open the drawing of lid 10 that is sealed on the vessel 40 and open position 12, after lid is opened, be opened to half, again the opening section of lid stock 10 is turned back on the flange 41 that previous status covers vessel 40, form sealing again, carry out sealing state again with this.Open to estimate sealing state again by drawing of 10 people.Metewand, drawing of lid stock 10 opened position 12 fasten very simply and be decided to be 5, can be simply open position 12 and fasten and be decided to be 4, can fasten to draw and open position 12 and be decided to be 3 drawing, inadequate fastening drawn open position 12 and be decided to be 2, can not fasten to draw and open position 12 and be decided to be 1.This 10 people's evaluation aviation value is got the judge value.The results are shown in table 1.
Embodiment 2-7
Will be as shown in table 1 respectively at the content of the filler in the thin layer among the embodiment 1 20 21, in addition, other are identical with embodiment 1, make lid stock 10, estimate the sealing state when sealing again.It the results are shown in table 1.
Comparative example 1,2
To be respectively as shown in table 1 by 21 content of the filler in the thin layer 20 in embodiment 1, other is identical with embodiment 1, makes lid stock 10, estimates the sealing state when sealing again.The results are shown in table 1.
Table 1
| Filer content (weight %) | Judge | |
| Embodiment 1 | 20 | 2 |
| Embodiment 2 | 30 | 3 |
| Embodiment 3 | 40 | 4 |
| Embodiment 4 | 50 | 5 |
| Embodiment 5 | 60 | 5 |
| Embodiment 6 | 70 | 5 |
| Embodiment 7 | 80 | 5 |
| Comparative example 1 | 5 | 1 |
| Comparative example 2 | 10 | 1 |
As known from Table 1,, owing to contain the filler 21 of 15-18 weight % in the thin layer 20, open position 12 and be fastened on the flange 41, seal again accurately so can will draw according to the lid stock 10 of embodiment 1～7.According to embodiment 3～7, utilize to contain filler 21 more than 40 weight %, can obtain extraordinary scoreability, and can further fasten simply to draw and open position 12.
If according to the lid stock of comparative example 1,2,, in fact draw and open position 12 and do not have the rigidity and the leak tightness that can fasten because the filler 21 in the thin layer 20 contains quantity not sufficient 15 weight %.
Claims (8)
1. but the lid stock of a breakdown is characterized in that, it comprises a kind of layer that is formed by the resin film that contains 15-80 weight % filler, and on the single face of described resin film the sealing layer of lamination.
2. but according to the lid stock of the breakdown of claim 1, it is characterized in that described filler is to be formed by inorganic material.
3. but according to the lid stock of the breakdown of claim 2, it is characterized in that described inorganic material is to be selected from talcum, mica, at least a in clay and the calcium carbonate.
4. but according to the lid stock of the breakdown of claim 1, it is characterized in that described resin film material is a thermoplastic resin.
5. but according to the lid stock of the breakdown of claim 4, it is characterized in that described thermoplastic resin is polypropylene or polyethylene.
6. but according to the lid stock of the breakdown of claim 1, it is characterized in that the described thickness that contains the resin film of filler is 50～300 μ m.
7. but according to the lid stock of the breakdown of claim 1, it is characterized in that the described thickness that contains the resin film of filler is 100～250 μ m.
8. but according to the lid stock of the breakdown of claim 1, it is characterized in that the material of described sealing layer is the resin that is selected from low density polyethylene (LDPE), straight chain shape low density polyethylene (LDPE), ethylene-vinyl acetate copolymer, ionic polymers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8031958A JPH09226834A (en) | 1996-02-20 | 1996-02-20 | Cover material to be peeled off |
| JP31958/96 | 1996-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1168853A CN1168853A (en) | 1997-12-31 |
| CN1092593C true CN1092593C (en) | 2002-10-16 |
Family
ID=12345477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109918A Expired - Fee Related CN1092593C (en) | 1996-02-20 | 1997-02-20 | Easy to be opened cover of container |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH09226834A (en) |
| KR (1) | KR970061716A (en) |
| CN (1) | CN1092593C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110516C (en) * | 1998-03-30 | 2003-06-04 | 平湖塑料厂 | Glazed plastic film for liquid packing |
| KR100428848B1 (en) * | 2000-07-10 | 2004-04-28 | 주식회사 한진피앤씨 | Fermentation food packing container |
| JP4790159B2 (en) * | 2001-06-13 | 2011-10-12 | 株式会社フジシールインターナショナル | Container with lid, process for producing the same, and sheet-like lid used for the container |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1014794B (en) * | 1986-07-16 | 1991-11-20 | 住友化学工业株式会社 | Breathable film and process for production of the same |
| CN1128005A (en) * | 1994-03-15 | 1996-07-31 | 株式会社大塚制药工场 | Contamination-proof sealant film and product fabricated therefrom |
-
1996
- 1996-02-20 JP JP8031958A patent/JPH09226834A/en not_active Withdrawn
-
1997
- 1997-02-19 KR KR1019970005009A patent/KR970061716A/en not_active Application Discontinuation
- 1997-02-20 CN CN97109918A patent/CN1092593C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1014794B (en) * | 1986-07-16 | 1991-11-20 | 住友化学工业株式会社 | Breathable film and process for production of the same |
| CN1128005A (en) * | 1994-03-15 | 1996-07-31 | 株式会社大塚制药工场 | Contamination-proof sealant film and product fabricated therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1168853A (en) | 1997-12-31 |
| KR970061716A (en) | 1997-09-12 |
| JPH09226834A (en) | 1997-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: IDEMITSU KOSAN Co.,Ltd. Address before: Tokyo, Japan Patentee before: IDEMITSU PETROCHEMICAL Co.,Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |