JPH03138131A - Manufacture of packaging material - Google Patents
Manufacture of packaging materialInfo
- Publication number
- JPH03138131A JPH03138131A JP1276581A JP27658189A JPH03138131A JP H03138131 A JPH03138131 A JP H03138131A JP 1276581 A JP1276581 A JP 1276581A JP 27658189 A JP27658189 A JP 27658189A JP H03138131 A JPH03138131 A JP H03138131A
- Authority
- JP
- Japan
- Prior art keywords
- film
- plastic film
- pseudo
- increased
- base
- 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.)
- Granted
Links
- 239000005022 packaging material Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000002985 plastic film Substances 0.000 claims abstract description 33
- 229920006255 plastic film Polymers 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims abstract 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- -1 polypropylene Polymers 0.000 abstract description 6
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 229920013716 polyethylene resin Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000009512 pharmaceutical packaging Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、有孔プラスチックフィルムに対して別のプラ
スチックフィルムを成膜工程において押し当て、これを
挟圧することにより擬似接着を行って一枚のフィルムに
仕上げる包装材料の製法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention involves pressing another plastic film against a perforated plastic film in a film forming process and applying pressure to create a pseudo-adhesion. The present invention relates to a method for producing packaging materials that are finished into films.
従来、第５図に示すように、多数の小孔０２をあけた有
孔プラスチックフィルム０１に対して溶融状態にある別
のベースプラスチックフィルムフィルム０３を押し当て
て挟圧することにより、両フィルムを擬似接着させたも
のが公知である。そして、この擬似接着させたフィルム
（包装材料）は、第６図に示すように、例えば食品を容
れた容器０４の蓋材゛として使用される。このようにし
て蓋材として使用すると、容器０４ごと電子レンジに入
れて加熱するような場合に、上側のベースプラスチック
フィルム０３だけを剥がし、下側の有孔プラスチックフ
ィルム０１はそのままとしてお（ことにより、有孔プラ
スチックフィルム０１の小孔０２を開孔してこの小孔０
２から蒸気を逃がすことができる。この結果、電子レン
ジで容器ごと調理できるという便利さがある。また、開
孔の結果、内部の食品の状態が見えるという便利さもあ
る。Conventionally, as shown in FIG. 5, by pressing and compressing another base plastic film 03 in a molten state against a perforated plastic film 01 having a large number of small holes 02, both films are made into a pseudo material. Those that are bonded are known. This pseudo-adhesive film (packaging material) is used, for example, as a lid material for a container 04 containing food, as shown in FIG. When used as a lid material in this way, when the container 04 is heated in a microwave oven, only the upper base plastic film 03 can be peeled off and the lower perforated plastic film 01 can be left as it is (possibly , the small hole 02 of the perforated plastic film 01 is opened and the small hole 0 is opened.
Steam can escape from 2. As a result, there is the convenience of being able to cook the entire container in the microwave. There is also the convenience of being able to see the condition of the food inside as a result of the holes.
〔従来技術の課題］
このような擬似接着により一枚のフィルムに仕上げられ
た包装材・料は、食品の包装とか薬品の包装等に巾広く
使用される可能性を持っているが、擬似接着の強度は一
定であり、又比較的弱いことから、用途によっては強度
不足の問題が生じる。[Problems with the prior art] Packaging materials and materials made into a single film using pseudo-adhesion have the potential to be widely used in food packaging, drug packaging, etc. Since the strength of is constant and relatively weak, the problem of insufficient strength may arise depending on the application.
本発明は接着強度を任意に調整できる包装材料の製法を
提案するのが目的である。The purpose of the present invention is to propose a method for producing a packaging material in which adhesive strength can be adjusted arbitrarily.
〔課題を解決するための手段］ 本発明の構成は次のとおりである。[Means to solve the problem] The configuration of the present invention is as follows.
プラスチックフィルムに対して噴火口状に口縁が突出し
た小孔を形成すると共にこの小孔を形成した有孔プラス
チックフィルムに対して突出した口縁側から溶融状態に
あるベースプラスチックフィルムを押し当てて両フィル
ムを挟圧し、口縁を溶融状態にあるベースプラスチック
フィルムの肉厚内において変形させることにより両フィ
ルムを擬似接着させて一枚のフィルムに仕上げる包装材
料の製法。A small hole with a protruding mouth edge shaped like a crater is formed in the plastic film, and a molten base plastic film is pressed against the perforated plastic film in which the small hole is formed from the side of the protruding mouth edge. A method for producing packaging materials in which both films are pseudo-adhered into a single film by compressing the film and deforming the edges within the thickness of the molten base plastic film.
上記構成において、有孔プラスチックフィルムは、ポリ
エチレンフィルム等任意であるが、小孔を形成する手段
としては、このポリエチレンフィルムが未だ溶融状態に
ある段階において、その−面に多数のバキューム小孔を
有するローラーを押し当て、このバキューム小孔内にポ
リエチレンフィルムを吸引し、小孔を開孔する方法が考
えられる。又、−面から針状の開孔具を突き刺して開孔
する方法も考えられる。但し、何れも噴火口状の口縁が
突出して形成されることが条件であり、又、この口縁の
高さ、直径数も任意に調整できることが条件である。し
たがって、これらの条件を容易に達成″できる方法とし
ては、前記のバキューム方法が最適である。In the above configuration, the perforated plastic film may be any arbitrary material such as a polyethylene film, but the means for forming the small holes is to form a large number of vacuum holes on its surface while the polyethylene film is still in a molten state. A possible method is to press a roller against the polyethylene film and draw the polyethylene film into the small vacuum hole to open the small hole. Alternatively, a method of piercing the hole with a needle-like hole opening tool from the negative side may be considered. However, in both cases, the condition is that a crater-like mouth rim is formed to protrude, and the height and diameter of this mouth rim can also be adjusted arbitrarily. Therefore, the above-mentioned vacuum method is optimal as a method that can easily achieve these conditions.
口縁の高さは、フィルムの溶融状態により調整すること
ができる。例えば、フィルムの溶融度が高い場合には口
縁の高さは高くなり、溶融度が低い場合には低くなる。The height of the rim can be adjusted depending on the melting state of the film. For example, if the melting degree of the film is high, the height of the rim will be high, and if the melting degree is low, it will be low.
これは、プラスチックの性質によっても変るので、それ
ぞれのプラスチックについて経験的に知ることが必要で
ある。又、有孔フィルムの加工環境（室温）によっても
微妙に変化する。This varies depending on the properties of the plastic, so it is necessary to know about each plastic empirically. Furthermore, it varies slightly depending on the processing environment (room temperature) of the perforated film.
ベースプラスチックフィルムの材質は任意であるが、有
孔プラスチックフィルムに挟圧する際のベースプラスチ
ックフィルムの溶融状態は有孔プラスチックフィルム側
の口縁が肉厚内に喰い込み、かつ挟圧により変形するこ
とが必要であるので、ダイスから押し出された成膜直後
が最適である。The base plastic film can be made of any material, but the molten state of the base plastic film when it is pressed into the perforated plastic film is such that the edge of the perforated plastic film side digs into the wall thickness and deforms due to the pressing pressure. is required, so it is best to deposit the film immediately after it is extruded from the die.
（実施例）
第１図に示すように、バキューム方式によりポリエチレ
ン樹脂フィルムに噴火口形状の口縁３付の小孔２を形成
した有孔プラスチックフィルム１と、押出し成膜直後の
溶融状態にあるポリプロピレン樹脂フィルムから成るベ
ースプラスチックフィルム４を対向させ、これを挟圧ロ
ール間に挟んで挟圧し、第２図に示すように、小孔２の
口縁３をベースプラスチックフィルム４の肉厚内に喰い
込ませ、かつ押し潰して変形させる。この状態は第４図
に示されている。第３図は有孔プラスチックフィルム１
における小孔２の拡大図にして、この小孔２における口
縁３の直径りと高さＨは、バキュームによりこの小７Ｌ
２を形成する際に設定される。擬似接着強度を高める場
合には、直径し、高さＨを大きく、そして小孔２の数を
多くすればよい。但し、この３つの条件のうち、Ｈ又は
Ｌ又は数だけを増すことにより強度を高めることができ
、これは例えば開孔した際の通気量の問題とか、内部の
透視の問題等により決定する。(Example) As shown in Fig. 1, there is a perforated plastic film 1 in which small holes 2 with a crater-shaped rim 3 are formed in a polyethylene resin film using a vacuum method, and a film in a molten state immediately after extrusion film formation. The base plastic films 4 made of polypropylene resin films are placed facing each other and are sandwiched between pressure rolls and compressed to make the edges 3 of the small holes 2 within the thickness of the base plastic film 4, as shown in FIG. It digs into it, crushes it, and deforms it. This state is shown in FIG. Figure 3 shows perforated plastic film 1
In the enlarged view of the small hole 2 in , the diameter and height H of the mouth rim 3 of this small hole 2 are reduced to 7L by the vacuum.
It is set when forming 2. In order to increase the pseudo adhesive strength, it is sufficient to increase the diameter, the height H, and the number of small holes 2. However, among these three conditions, the strength can be increased by increasing only H, L, or the number, and this is determined by, for example, the amount of airflow when opening the holes, or the problem of internal transparency.
本発明は以上のように、有孔プラスチックフィルムの小
孔に口縁を形成し、この口縁の直径及び高さ並びに小孔
の数により任意に擬似接着強度を調整できるので、使用
目的に合った包装材料が得られる効果がある。As described above, according to the present invention, a lip is formed in the small hole of a perforated plastic film, and the pseudo adhesive strength can be arbitrarily adjusted by adjusting the diameter and height of this lip and the number of small holes, so that it is possible to suit the purpose of use. This has the effect of providing a packaging material with high quality.
第１図は本発明において、有孔プラスチックフィルムと
ベースフィルムの挟圧直前の説明図、第２図は挟圧した
状態の断面図、第３図は有孔プラスチックフィルムにお
ける小孔と口縁の説明図、第４図は口縁がベースプラス
チックフィルム内に喰い込み、押し潰されて擬似接着し
ている状態の拡大断面図、
第５．
６図は従来例の説明図である。
１・−・・・・−有孔プラスチックフィルム ２・・
−・・小孔３−・−・−口縁 ４・・・・−・・ベース
プラスチックフィルム特
許
出
願
人
日本特許管理株式会社
第２図
第３図In the present invention, Fig. 1 is an explanatory diagram of the perforated plastic film and the base film immediately before being pressed together, Fig. 2 is a sectional view of the pressed state, and Fig. 3 is an illustration of the small holes and the edges of the perforated plastic film. Explanatory drawing, FIG. 4 is an enlarged cross-sectional view of the mouth edge biting into the base plastic film, being crushed and pseudo-adhered; 5. FIG. 6 is an explanatory diagram of a conventional example. 1.--Perforated plastic film 2.-
-・・Small hole 3−・−・−Rip 4・・・・・・Base plastic film Patent applicant Japan Patent Management Co., Ltd. Figure 2 Figure 3
Claims (2)
突出した小孔を形成すると共にこの小孔を形成した有孔
プラスチックフィルムに対して突出した口縁側から溶融
状態にあるベースプラスチックフィルムを押し当てて両
フィルムを挟圧し、口縁を溶融状態にあるベースプラス
チックフィルムの肉厚内において変形させることにより
両フィルムを擬似接着させて一枚のフィルムに仕上げる
包装材料の製法。(1) Form a small hole with a protruding rim in the shape of a crater in the plastic film, and push the base plastic film in a molten state from the rim side that protrudes from the perforated plastic film in which the small pore is formed. A packaging material production method in which both films are pressed together and the edges are deformed within the thickness of the molten base plastic film to create a pseudo-adhesion between the two films to form a single film.
を任意に調整する包装材料の製法。(2) A method for manufacturing packaging materials in which pseudo adhesive strength is arbitrarily adjusted by selecting the height, diameter, and number of edges.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27658189A JP2768509B2 (en) | 1989-10-24 | 1989-10-24 | Manufacturing method of packaging material |
| DE68923431T DE68923431T2 (en) | 1988-11-30 | 1989-11-30 | Separable films. |
| ES89312519T ES2075063T3 (en) | 1988-11-30 | 1989-11-30 | SEPARABLE FILMS. |
| EP89312519A EP0371819B1 (en) | 1988-11-30 | 1989-11-30 | Separable films |
| AT89312519T ATE124909T1 (en) | 1988-11-30 | 1989-11-30 | SEPARABLE FILMS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27658189A JP2768509B2 (en) | 1989-10-24 | 1989-10-24 | Manufacturing method of packaging material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03138131A true JPH03138131A (en) | 1991-06-12 |
| JP2768509B2 JP2768509B2 (en) | 1998-06-25 |
Family
ID=17571461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27658189A Expired - Fee Related JP2768509B2 (en) | 1988-11-30 | 1989-10-24 | Manufacturing method of packaging material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2768509B2 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129123A1 (en) * | 2008-04-18 | 2009-10-22 | Apple Inc. | Perforated substrates for forming housings |
| US8367304B2 (en) | 2008-06-08 | 2013-02-05 | Apple Inc. | Techniques for marking product housings |
| US8489158B2 (en) | 2010-04-19 | 2013-07-16 | Apple Inc. | Techniques for marking translucent product housings |
| US8628836B2 (en) | 2010-03-02 | 2014-01-14 | Apple Inc. | Method and apparatus for bonding metals and composites |
| US8663806B2 (en) | 2009-08-25 | 2014-03-04 | Apple Inc. | Techniques for marking a substrate using a physical vapor deposition material |
| US8667661B2 (en) | 2008-12-24 | 2014-03-11 | Apple Inc. | Method and apparatus for forming a layered metal structure with an anodized surface |
| US8879266B2 (en) | 2012-05-24 | 2014-11-04 | Apple Inc. | Thin multi-layered structures providing rigidity and conductivity |
| US9173336B2 (en) | 2009-05-19 | 2015-10-27 | Apple Inc. | Techniques for marking product housings |
| US9280183B2 (en) | 2011-04-01 | 2016-03-08 | Apple Inc. | Advanced techniques for bonding metal to plastic |
| US9314871B2 (en) | 2013-06-18 | 2016-04-19 | Apple Inc. | Method for laser engraved reflective surface structures |
| US9387612B2 (en) | 2007-07-13 | 2016-07-12 | Apple Inc. | Methods and systems for forming a dual layer housing |
| US9434197B2 (en) | 2013-06-18 | 2016-09-06 | Apple Inc. | Laser engraved reflective surface structures |
| US9845546B2 (en) | 2009-10-16 | 2017-12-19 | Apple Inc. | Sub-surface marking of product housings |
| US9884342B2 (en) | 2009-05-19 | 2018-02-06 | Apple Inc. | Techniques for marking product housings |
| US9962788B2 (en) | 2009-10-16 | 2018-05-08 | Apple Inc. | Sub-surface marking of product housings |
| US10071584B2 (en) | 2012-07-09 | 2018-09-11 | Apple Inc. | Process for creating sub-surface marking on plastic parts |
| US10071583B2 (en) | 2009-10-16 | 2018-09-11 | Apple Inc. | Marking of product housings |
| US10220602B2 (en) | 2011-03-29 | 2019-03-05 | Apple Inc. | Marking of fabric carrying case for a portable electronic device |
| US10999917B2 (en) | 2018-09-20 | 2021-05-04 | Apple Inc. | Sparse laser etch anodized surface for cosmetic grounding |
-
1989
- 1989-10-24 JP JP27658189A patent/JP2768509B2/en not_active Expired - Fee Related
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11077593B2 (en) | 2007-07-13 | 2021-08-03 | Apple Inc. | Housings for electronic devices |
| US9387612B2 (en) | 2007-07-13 | 2016-07-12 | Apple Inc. | Methods and systems for forming a dual layer housing |
| WO2009129123A1 (en) * | 2008-04-18 | 2009-10-22 | Apple Inc. | Perforated substrates for forming housings |
| US8646637B2 (en) | 2008-04-18 | 2014-02-11 | Apple Inc. | Perforated substrates for forming housings |
| US8367304B2 (en) | 2008-06-08 | 2013-02-05 | Apple Inc. | Techniques for marking product housings |
| US9185835B2 (en) | 2008-06-08 | 2015-11-10 | Apple Inc. | Techniques for marking product housings |
| US8667661B2 (en) | 2008-12-24 | 2014-03-11 | Apple Inc. | Method and apparatus for forming a layered metal structure with an anodized surface |
| US9173336B2 (en) | 2009-05-19 | 2015-10-27 | Apple Inc. | Techniques for marking product housings |
| US9884342B2 (en) | 2009-05-19 | 2018-02-06 | Apple Inc. | Techniques for marking product housings |
| US8663806B2 (en) | 2009-08-25 | 2014-03-04 | Apple Inc. | Techniques for marking a substrate using a physical vapor deposition material |
| US9849650B2 (en) | 2009-08-25 | 2017-12-26 | Apple Inc. | Techniques for marking a substrate using a physical vapor deposition material |
| US10773494B2 (en) | 2009-08-25 | 2020-09-15 | Apple Inc. | Techniques for marking a substrate using a physical vapor deposition material |
| US9845546B2 (en) | 2009-10-16 | 2017-12-19 | Apple Inc. | Sub-surface marking of product housings |
| US10071583B2 (en) | 2009-10-16 | 2018-09-11 | Apple Inc. | Marking of product housings |
| US9962788B2 (en) | 2009-10-16 | 2018-05-08 | Apple Inc. | Sub-surface marking of product housings |
| US9409379B2 (en) | 2010-03-02 | 2016-08-09 | Apple Inc. | Method and apparatus for bonding metals and composites |
| US8628836B2 (en) | 2010-03-02 | 2014-01-14 | Apple Inc. | Method and apparatus for bonding metals and composites |
| US8489158B2 (en) | 2010-04-19 | 2013-07-16 | Apple Inc. | Techniques for marking translucent product housings |
| US10220602B2 (en) | 2011-03-29 | 2019-03-05 | Apple Inc. | Marking of fabric carrying case for a portable electronic device |
| US9280183B2 (en) | 2011-04-01 | 2016-03-08 | Apple Inc. | Advanced techniques for bonding metal to plastic |
| US8879266B2 (en) | 2012-05-24 | 2014-11-04 | Apple Inc. | Thin multi-layered structures providing rigidity and conductivity |
| US10071584B2 (en) | 2012-07-09 | 2018-09-11 | Apple Inc. | Process for creating sub-surface marking on plastic parts |
| US11597226B2 (en) | 2012-07-09 | 2023-03-07 | Apple Inc. | Process for creating sub-surface marking on plastic parts |
| US9434197B2 (en) | 2013-06-18 | 2016-09-06 | Apple Inc. | Laser engraved reflective surface structures |
| US9314871B2 (en) | 2013-06-18 | 2016-04-19 | Apple Inc. | Method for laser engraved reflective surface structures |
| US10999917B2 (en) | 2018-09-20 | 2021-05-04 | Apple Inc. | Sparse laser etch anodized surface for cosmetic grounding |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2768509B2 (en) | 1998-06-25 |
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