JP2768509B2 - Manufacturing method of packaging material - Google Patents
Manufacturing method of packaging materialInfo
- Publication number
- JP2768509B2 JP2768509B2 JP27658189A JP27658189A JP2768509B2 JP 2768509 B2 JP2768509 B2 JP 2768509B2 JP 27658189 A JP27658189 A JP 27658189A JP 27658189 A JP27658189 A JP 27658189A JP 2768509 B2 JP2768509 B2 JP 2768509B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic film
- film
- packaging material
- base
- molten state
- 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
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
Landscapes
- Closures For Containers (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
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 relates to a method in which a plastic film is pressed against a perforated plastic film in a film forming step, and is pressed to form a pseudo-adhesion. The present invention relates to a method for producing a packaging material to be finished into a film.
従来、第５図に示すように、多数の少孔の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くことにより、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02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 another base plastic film film 03 in a molten state against a perforated plastic film 01 having a large number of small holes 02, and pressing both films, Pseudo-adhesion is known. Then, this pseudo-adhered film (packaging material) is used as, for example, a lid of a container 04 containing food, as shown in FIG. When used as a lid material in this way, when the container 04 is put into a microwave oven and heated, only the upper base plastic film 03 is peeled off and the lower perforated plastic film 01 is removed.
By leaving as is, it is possible to open the small holes 02 of the perforated plastic film 01 and allow the vapor to escape from the small holes 02. As a result, there is the convenience that the entire container can be cooked in a microwave oven. Another advantage is that the state of the food inside can be seen as a result of the opening.
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。Packaging materials finished into a single film by such pseudo-bonding have the potential to be widely used for food packaging, drug packaging, etc., but the strength of pseudo-bonding is constant, and Due to its relatively weakness, there is a problem of insufficient strength in some applications.
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。An object of the present invention is to propose a method for producing a packaging material in which the adhesive strength can be arbitrarily adjusted.
本発明の構成は次のとおりである。 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 is formed in the crater shape of the rim of the plastic film, and the base plastic film in the molten state is pressed against the plastic film having the small hole from the side of the rim protruding. A method of manufacturing a packaging material in which the two films are pseudo-adhered by pressing the film and deforming the lip within the thickness of the base plastic film in a molten state to form a single 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末だ溶融状態
にある段階において、その一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、一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 is arbitrary such as a polyethylene film, but as a means for forming the small holes, at a stage where the polyethylene film is in a molten state at the end, it has a large number of vacuum small holes on one surface thereof. A method is considered in which a roller is pressed to suck the polyethylene film into the vacuum small holes to open the small holes. Further, a method of piercing a needle-shaped opening tool from one side to open the hole is also conceivable. However, in each case, the condition is that the crater-shaped rim is formed so as to protrude, and the height and the number of diameters of the rim are also arbitrarily adjustable.
Therefore, the above-described vacuum method is the most suitable method for easily achieving 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。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。The height of the rim can be adjusted by the molten state of the film. For example, when the degree of fusion of the film is high, the height of the rim is high, and when the degree of fusion is low, the height is low. This also depends on the nature of the plastic,
It is necessary to know empirically about each plastic. Also, it changes subtly 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 material of the base plastic film is optional,
The molten state of the base plastic film when pressed into the perforated plastic film was extruded from the die because the edge of the perforated plastic film needed to bite into the wall thickness and be deformed by pressing. Optimum immediately after film formation.
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
ロール間に挾んで挟圧し、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おける口
縁３の直径Ｌと高さＨは、バキュームによりこの小孔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Ｌ、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。As shown in FIG. 1, a perforated plastic film 1 in which small holes 2 having a crater-shaped rim 3 are formed in a polyethylene resin film by a vacuum method, and a polypropylene resin film in a molten state immediately after extrusion film formation. The base plastic film 4 is opposed to the base film 4 and is sandwiched between the sandwiching rolls to be pressed. As shown in FIG.
Of the base 3 is bitten into the thickness of the base plastic film 4 and is crushed and deformed. This state is the fourth
It is shown in the figure. FIG. 3 is an enlarged view of the small hole 2 in the perforated plastic film 1. The diameter L and the height H of the rim 3 in the small hole 2 are determined by vacuum.
It is set when forming. In order to increase the pseudo bond strength, the diameter L and the height H may be increased, and the number of the small holes 2 may be increased. However, among these three conditions, H or L
Or you can increase the strength by increasing only the number,
This is determined based on, for example, the problem of the air flow when the hole is opened, the problem of the internal see-through, and the like.
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 a small hole of a perforated plastic film, and the pseudo-adhesion strength can be arbitrarily adjusted according to the diameter and height of the lip and the number of small holes. This has the effect of obtaining an improved packaging material.
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FIG. 1 is an explanatory view of a perforated plastic film and a base film immediately before being pressed in the present invention, FIG. 2 is a cross-sectional view in a state where the perforated plastic film is pressed, and FIG. FIG. 4 is an enlarged sectional view showing a state in which the lip bites into the base plastic film and is crushed and pseudo-bonded, and FIGS. 5 and 6 are explanatory views of a conventional example. 1 ... perforated plastic film, 2 ... small holes, 3 ...
Edge 4, base plastic film
Claims (2)
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疑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. A base plastic film which is formed in a molten state from an edge side of a perforated plastic film having an aperture protruding in a crater shape with respect to the plastic film and projecting from the perforated plastic film having the aperture formed therein. A method of manufacturing a packaging material in which the two films are pressed to press each other, and the edges are deformed within the thickness of the base plastic film in a molten state so that the two films are quasi-adhered to form a single film.
着強度を任意に調整する請求項１記載の包装材料の製
法。2. The method for producing a packaging material according to claim 1, wherein the pseudo bond strength is arbitrarily adjusted by selecting the height, diameter and number of the lip.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27658189A JP2768509B2 (en) | 1989-10-24 | 1989-10-24 | Manufacturing method of packaging material |
| ES89312519T ES2075063T3 (en) | 1988-11-30 | 1989-11-30 | SEPARABLE FILMS. |
| DE68923431T DE68923431T2 (en) | 1988-11-30 | 1989-11-30 | Separable films. |
| AT89312519T ATE124909T1 (en) | 1988-11-30 | 1989-11-30 | SEPARABLE FILMS. |
| EP89312519A EP0371819B1 (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 JPH03138131A (en) | 1991-06-12 |
| JP2768509B2 true 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) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8192815B2 (en) | 2007-07-13 | 2012-06-05 | Apple Inc. | Methods and systems for forming a dual layer housing |
| 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 |
| US20100159273A1 (en) | 2008-12-24 | 2010-06-24 | John Benjamin Filson | Method and Apparatus for Forming a Layered Metal Structure with an Anodized Surface |
| US9884342B2 (en) | 2009-05-19 | 2018-02-06 | Apple Inc. | Techniques for marking product housings |
| US9173336B2 (en) | 2009-05-19 | 2015-10-27 | 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 |
| US8809733B2 (en) | 2009-10-16 | 2014-08-19 | Apple Inc. | Sub-surface marking of product housings |
| 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 |
| 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 |
| US20120248001A1 (en) | 2011-03-29 | 2012-10-04 | Nashner Michael S | Marking of Fabric Carrying Case for 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 |
| US9314871B2 (en) | 2013-06-18 | 2016-04-19 | Apple Inc. | Method for laser engraved reflective surface structures |
| US9434197B2 (en) | 2013-06-18 | 2016-09-06 | Apple Inc. | Laser engraved reflective surface structures |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03138131A (en) | 1991-06-12 |
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