JPH03286848A - Method for molding multilayer container - Google Patents
Method for molding multilayer containerInfo
- Publication number
- JPH03286848A JPH03286848A JP2088457A JP8845790A JPH03286848A JP H03286848 A JPH03286848 A JP H03286848A JP 2088457 A JP2088457 A JP 2088457A JP 8845790 A JP8845790 A JP 8845790A JP H03286848 A JPH03286848 A JP H03286848A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- shaped piece
- thin plate
- multilayer
- plate body
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 40
- 238000000465 moulding Methods 0.000 title abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000003856 thermoforming Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 description 14
- 239000011347 resin Substances 0.000 description 14
- 238000007666 vacuum forming Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004840 adhesive resin Substances 0.000 description 2
- 229920006223 adhesive resin Polymers 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、外層と内層との間にガスバリア層などか設け
られてなる多層構造の容器を製造するのに好適な成形方
法に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a molding method suitable for manufacturing a multilayer container having a gas barrier layer or the like provided between an outer layer and an inner layer.
「従来の技術」
従来の多層容器の成形方法としては多層構造のシートを
加熱して熱成形によって金型に密着させて、第１４図お
よび第１５図に示すように、製品１・を多数個同時に成
形し、この後、製品１・・・の部分を打ち抜く方法が用
いられている。``Prior art'' The conventional method for forming multilayer containers involves heating a multilayer sheet and adhering it to a mold by thermoforming to form a large number of products 1, as shown in FIGS. 14 and 15. A method is used in which the products are simultaneously molded and then parts of the product 1 are punched out.
発明か解決しようとする課題」
このような従来の多層容器の成形方法にあっては、金型
製作上の制限や成形上の制限によって、製品ｌ・・・の
間隔を狭めることができない。このため製品１ 間の取
り除かれる部分（第１５図中多数の点を打〜て示した部
分）が多層に発生する。[Problems to be Solved by the Invention] In such a conventional method for forming a multilayer container, it is not possible to reduce the distance between the products l... due to limitations in mold manufacturing and molding. For this reason, the removed portions between the products 1 (the portions indicated by multiple dots in FIG. 15) occur in multiple layers.
この問題（ま広く用いられている円形状の容器において
特に顕著である。そして多層シートの場合は、異種材料
の集まりであるため、前記除去部分を回収して再使用す
ることはできない。このため前記成形方法で多層容器を
製造すると、製品のコストが高騰する不満があった。This problem is particularly noticeable in circular containers, which are widely used.In the case of multilayer sheets, the removed parts cannot be collected and reused because they are a collection of different materials. When a multilayer container is manufactured using the above molding method, there is a problem that the cost of the product increases.
また従来の成形方法では、多層構造のソートを押出成形
するために、大形のＴダイか必要となり、この点ても製
造コストが上昇していた。Furthermore, in the conventional molding method, a large T-die is required to extrude a multilayered sort, which also increases manufacturing costs.
本発明は前記事情に鑑みてなされたもので、材料の無駄
省くことができるうえに、製造装置の小型化を実現でき
る多層容器の成形方法を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for molding a multilayer container, which can reduce waste of materials and also realize miniaturization of manufacturing equipment.
「課題を解決するための手段」
本発明の多層容器の成形方法では、前記目的を達成する
ために、多層構造の棒状品を押出成形したあとこの棒状
品を切断して多層棒状片を製造する多層棒状片製造工程
と、この多層棒状片を当該棒状片をなす層と直交する方
向から押圧して薄肉板体とするプレス工程と、この薄肉
板体を所望形状に熱成形する熱成形工程とによって多層
容器を成形することとした。"Means for Solving the Problems" In order to achieve the above object, the method for molding a multilayer container of the present invention includes extrusion molding a rod-like article having a multilayer structure, and then cutting the rod-like article to produce a multilayer rod-like piece. A multilayer rod-like piece manufacturing process, a pressing process to press the multilayer rod-like piece from a direction perpendicular to the layers forming the rod-like piece to form a thin plate, and a thermoforming process for thermoforming the thin plate into a desired shape. We decided to mold a multilayer container using the following methods.
ここで熱成形法とは、真空成形法、圧空成形法など、薄
肉の樹脂成形品を加熱軟化させた後、外力を加えて成形
する方法を示す。Here, the thermoforming method refers to a method, such as a vacuum forming method or a pressure forming method, in which a thin resin molded product is softened by heating and then molded by applying an external force.
「作用」
棒状片を当該棒状片の層と直交する方向から押圧すると
層構造が保たれた状態で薄肉化されて、薄肉板体となる
。"Operation" When a bar-shaped piece is pressed from a direction perpendicular to the layers of the bar-shaped piece, the layer structure is maintained and the thickness is reduced, resulting in a thin plate.
また棒状片の長さを調整することによって、薄肉板体の
大きさを所望する製品の外径とほぼ等しくすることがで
きる。Furthermore, by adjusting the length of the rod-shaped piece, the size of the thin plate can be made approximately equal to the outer diameter of the desired product.
さらにプレス工程て薄肉板体を適切な形状に成形するこ
とによって、次の熱成形工程で予想される偏肉等の変形
を予め補うことができる。Furthermore, by forming the thin plate into an appropriate shape in the pressing process, deformations such as uneven thickness that are expected in the next thermoforming process can be compensated for in advance.
「実施例」
第１図ないし第８図は、本発明の多層容器の成形方法の
一実施例を工程順に示すものである。"Example" FIGS. 1 to 8 show an example of the method for molding a multilayer container of the present invention in the order of steps.
この成形方法は、多層棒状片製造工程とプレス工程と熱
成形工程とによって構成されている。まず最初の多層棒
状片製造工程では、第１図に示すように所定長さに切断
さ犯た棒状片１４が製造される。この棒状片１４は、中
心部１５と中間部１６と外周部１７とが同心円状に形成
された円桂状のものである。この棒状片１４の中心部１
５は、製造される容器の強度を担う樹脂によって形成さ
れている。また中間部１６は、ガスバリア性を有する樹
脂によって形成されており、外周部１７は接着性を有す
る樹脂によって形成されている。This molding method is comprised of a multilayer rod-shaped piece manufacturing process, a pressing process, and a thermoforming process. In the first step of manufacturing a multilayer rod-shaped piece, a rod-shaped piece 14 cut into a predetermined length is manufactured as shown in FIG. This rod-shaped piece 14 is conical in shape, with a center portion 15, an intermediate portion 16, and an outer peripheral portion 17 formed concentrically. Center part 1 of this rod-shaped piece 14
5 is made of resin, which provides the strength of the manufactured container. Further, the intermediate portion 16 is made of a resin having gas barrier properties, and the outer peripheral portion 17 is made of a resin having adhesive properties.
この棒状片１４は、第２図に示すように、複数台の押出
機が接続された押出成形用ダイ１８から多層構造の棒状
品１９を押し出し、これを冷却固化する前にカッタ２０
により所定長さに切断することによって容易に製造でき
る。As shown in FIG. 2, this rod-shaped piece 14 is produced by extruding a multi-layered rod-shaped article 19 from an extrusion molding die 18 to which a plurality of extruders are connected, and before cooling and solidifying the rod-shaped article 19, a cutter 20 is used.
It can be easily manufactured by cutting it into a predetermined length.
次のプレス工程では、前記棒状片１４を、伶却固化する
前に直ちに、第３図にその横断面図として示すように、
プレス金型２１の下型２２に横ｒこえる。そして上型２
３によって押圧する。プレス金型２１には、所望する製
品の外径より若干大径の円形キャビティが形成されてお
り、押圧さ乙た棒状片１４は第４図に示すように円板状
の薄肉板体２４となる。このように成形された薄肉板体
２４は、第５図に示すように、前記棒状片１４の中心部
１５から形成さ乙た中心層２５と、中間部１６から形成
された中間層２６．２６と、外周部１７から形成さ把た
外層２７．２７とからなる５層構造となっている。In the next pressing step, the rod-shaped piece 14 is immediately pressed, as shown in its cross-sectional view in FIG.
It crosses over the lower die 22 of the press die 21. And upper mold 2
Press by 3. The press mold 21 is formed with a circular cavity whose diameter is slightly larger than the outer diameter of the desired product, and the pressed rod-shaped piece 14 is connected to a disk-shaped thin plate body 24 as shown in FIG. Become. As shown in FIG. 5, the thin plate body 24 formed in this manner includes a center layer 25 formed from the center portion 15 of the rod-shaped piece 14, and intermediate layers 26 and 26 formed from the intermediate portion 16. and outer layers 27 and 27 formed from the outer peripheral portion 17.
次の熱成形工程では、このように成形された薄肉板体２
４を真空成形する。真空成形に当たっては、薄肉板体２
４を、第６図に示すように、スチールベルト２９に穿設
された孔２８を閉止するように置く。このスチールベル
ト２９の上下には、図示しない赤外線ランプが配置さｔ
、ており、このランプ２９によって孔２８上にセットさ
また薄肉板体２４は再加熱されろ。スチールベルト２９
の下部の所定位置には、第７図に示すように、真空銭形
用金型３１が設けられている。そしてこの真空銭形用金
型３１の部分に加熱された薄肉板体２４か達すると、上
型３２が下降して薄肉板体２４の外周部を押さえ、真空
成形用金型３１内か排気さｔ、る。すると薄肉板体２４
は、真空銭形用金型３１内に吸引されて、第８図に示す
ように所望の製品形状に賦形さ乙る。そしてこの後この
成形品３５の周端部３３をトリミングすると最纒製品か
得ら乙る。このトリミングで除去する部分は、成形品３
５のごく周端部分のみで良い。In the next thermoforming process, the thin plate body 2 formed in this way is
4 is vacuum formed. For vacuum forming, thin plate body 2
4 is placed so as to close the hole 28 made in the steel belt 29, as shown in FIG. Infrared lamps (not shown) are arranged above and below this steel belt 29.
, and the thin plate 24 set over the hole 28 is reheated by this lamp 29. steel belt 29
As shown in FIG. 7, a vacuum coin mold 31 is provided at a predetermined position at the bottom of the coin. When the heated thin plate 24 reaches the vacuum coin mold 31, the upper mold 32 descends and presses the outer circumference of the thin plate 24, causing the inside of the vacuum forming mold 31 to be evacuated. ,ru. Then, the thin plate 24
is sucked into the vacuum coin mold 31 and shaped into a desired product shape as shown in FIG. Then, by trimming the peripheral end portion 33 of this molded product 35, a finished product is obtained. The part to be removed by this trimming is molded product 3.
Only the very peripheral portion of No. 5 is sufficient.
この成形方法では、多層構造の棒状品１９を押出成形し
、ついてこの棒材品１９を切断して棒状片１４とし、こ
の棒状片１４を当該棒状片１４をなす層１５，１６．１
７と直交する方向から押圧して薄肉板体２４とし、つい
でこの薄肉板体２４を熱成形して製品とする製造方法な
ので、棒状片ｌ４の長さを適宜調整することによって、
所望する製品の外径に近い大きさの薄肉板体２４を得る
ことかできる。従ってこの成形方法によれば、材料を無
駄にすることなく製品を製造することかてきる。In this molding method, a rod-shaped article 19 having a multilayer structure is extruded, and then the rod-shaped article 19 is cut into a rod-shaped piece 14, and this rod-shaped piece 14 is separated from the layers 15, 16.
Since this is a manufacturing method in which the thin plate body 24 is formed by pressing from the direction perpendicular to 7, and then this thin plate body 24 is thermoformed to produce a product, by appropriately adjusting the length of the rod-shaped piece l4,
It is possible to obtain a thin plate 24 having a size close to the outer diameter of the desired product. Therefore, according to this molding method, products can be manufactured without wasting materials.
またこの成形方法では、多層構造の棒状品１つを製造し
たあとこれを薄肉板体２４に成形するので、押出成形装
置のダイ１８はシートを押出成形する場合に比較して小
型のもので充分である。従ってこの成形方法によｔ５ば
製造装置を小型化することができる。In addition, in this molding method, after manufacturing one rod-shaped product with a multilayer structure, this is molded into the thin plate body 24, so the die 18 of the extrusion molding device is small compared to the case of extrusion molding a sheet. It is. Therefore, with this molding method, the manufacturing apparatus can be downsized.
よってこの多層容器の成形方法によｔｏば、材料の無駄
省くことができるうえに、製造装置の小型化を実現でき
るので、多層容器の製造コストの低減を実現できる。Therefore, this multilayer container molding method can not only save materials, but also downsize the manufacturing equipment, thereby reducing the manufacturing cost of the multilayer container.
加えてこの製造方法では、棒状片１４を冷却固化する前
に薄肉板体２４に成形するので、棒状片１４を再加熱す
る必要がない。よってこの製造方法によれば、エネルギ
ーを有効利用てきる。In addition, in this manufacturing method, since the rod-shaped piece 14 is formed into the thin plate body 24 before being cooled and solidified, there is no need to reheat the rod-shaped piece 14. Therefore, according to this manufacturing method, energy can be used effectively.
さらにこの製造方法では、押出成形時に中心部１５と中
間部１６と外周部１７とが同心円状に形成された棒状片
Ｉ４を製造してこれをプレス成形することとしたので、
薄肉板体２４ひいては製造される製品は５層構造となる
。このようにこの製造方法によれば、押出成形用ダイ１
８の押出口部分の分割数よりも層数の多い製品を製造で
きるので、層数の多い、例えば製品の信頼性を向上する
ためにガスバリア層を２層に分割して設けたような製品
をも容易に製造できる。Furthermore, in this manufacturing method, during extrusion molding, the rod-shaped piece I4 in which the center portion 15, intermediate portion 16, and outer peripheral portion 17 are formed concentrically is manufactured, and this is press-molded.
The thin plate body 24 and thus the manufactured product have a five-layer structure. According to this manufacturing method, the extrusion molding die 1
Since it is possible to manufacture products with a greater number of layers than the number of divisions of the extrusion port part 8, it is possible to manufacture products with a large number of layers, for example, products with a gas barrier layer divided into two layers in order to improve product reliability. can also be easily manufactured.
またこの成形方法では、棒状片１４をプレス成形して薄
肉板体２４とするので、薄肉板体２４を、第９図に示す
ように、皿状に成形して、薄肉板体２４をスチールベル
ト２９の孔２８の位置にセットし易くすることができる
。また第１０図に示すように、真空成形時に引き伸ばさ
れて薄肉化し易い部分を予め厚く形成しておくこともで
きる。加えて第１１図および第１２図に示すように、薄
肉板体２４に放射状にリブ３４・・・を形成して、真空
成形時の円周方向の厚みムラを解消することもできる。In addition, in this forming method, since the bar-shaped piece 14 is press-molded to form the thin plate body 24, the thin plate body 24 is formed into a dish shape as shown in FIG. It can be easily set in the position of the hole 28 of 29. Further, as shown in FIG. 10, it is also possible to previously form thicker portions that are likely to be stretched and thinned during vacuum forming. In addition, as shown in FIGS. 11 and 12, ribs 34 can be formed radially on the thin plate 24 to eliminate thickness unevenness in the circumferential direction during vacuum forming.
なわ前記実施例ては、棒状片１４を断面円形にＷ３＋戊
しｆ−か、棒状片１４の断面形状（よ他の形状であって
も良い。例えば第１３図に示すように断面楕円状とする
こともてきる。In the above embodiment, the rod-like piece 14 may have a circular cross section W3 + f-, or the cross-sectional shape of the rod-like piece 14 (other shapes may also be used. For example, as shown in FIG. 13, the cross section may be oval). You can also do that.
まｆ、：前記実施例ては、棒状片１４の中心部１５か高
強度樹脂（例えばポリプロピレン系樹脂、高密度ポリエ
チレン樹脂等）によって形成され、中間部１６かカスバ
リア性樹脂（例えばナイロン系樹脂、王手しン・酢酸ヒ
ニル樹脂一部ヶノ化物等）によって形成さｔ。、外周部
１７か接着性樹脂（例えば無水マレイン酸グラフトポリ
エチレン樹脂、低に度ポリエチレノ樹脂等）で形成され
たか、各部分を形成する樹脂はこれに限定されるもので
はない。例えば中心部１５をガスバリア性樹脂て形成し
、中間部１６を耐水性樹脂で形成し、外周部１７を接着
性樹脂で形成することもてきる。また中心部１５を空孔
とすることもできる。加えてこの実施例ては棒状片１４
を３層構造としたが、棒状片１４の層数は２層であって
も４層以上であってもよい。In the above embodiment, the central portion 15 of the rod-shaped piece 14 is made of a high-strength resin (e.g., polypropylene resin, high-density polyethylene resin, etc.), and the intermediate portion 16 is made of a gas barrier resin (e.g., nylon resin, etc.). It is formed by a mixture of polyester resin, vinyl acetate resin, etc.). The resin forming each part is not limited to whether the outer peripheral part 17 is made of adhesive resin (for example, maleic anhydride-grafted polyethylene resin, low-strength polyethylene resin, etc.). For example, the center portion 15 may be formed of gas barrier resin, the intermediate portion 16 may be formed of water-resistant resin, and the outer peripheral portion 17 may be formed of adhesive resin. Moreover, the center part 15 can also be made into a hole. In addition, in this embodiment, a rod-shaped piece 14
Although the rod-shaped piece 14 has a three-layer structure, the number of layers of the rod-shaped piece 14 may be two or four or more.
「発明の効果」
以上説明したように本発明の多層容器の成形方法は、多
層構造の棒状品を押出成形したあとこの棒状品を切断し
て多層棒状片を製造する多層棒状片製造工程と、この多
層棒状片を当該棒状片をなす層と直交する方向から押圧
して薄肉板体とするプレス工程と、この薄肉板体を所望
形状に結成形する包成形工程とからなる方法なので、棒
状片の長さを調整することによって、薄肉板体の大きさ
を所望する製品の外径とほぼ等しくすることができろ。"Effects of the Invention" As explained above, the method for molding a multilayer container of the present invention includes a multilayer rod-shaped piece manufacturing step in which a multilayered rod-shaped piece is extruded and then cut to produce a multilayer rod-shaped piece; This method consists of a pressing process in which this multilayer bar-shaped piece is pressed from a direction perpendicular to the layers forming the bar-shaped piece to form a thin plate, and an encasing process in which this thin plate is formed into a desired shape. By adjusting the length of the thin plate, the size of the thin plate can be made approximately equal to the outer diameter of the desired product.
従ってこの発明の成形方法によ乙ば、材料の無駄かほと
んど発生しない。Therefore, according to the molding method of the present invention, almost no material is wasted.
さ与にこの発明の成形方法では、棒状品を押出成形して
多層棒状片を製造したあとこれをプレスして薄肉板体と
するのて、押出成形時に用いるダイは多層ノートを押出
成形する場合に比較して小型のものとなる。従ってこの
発明の成形方法によれば小型の装置て多層容器を製造で
きる。In addition, in the molding method of the present invention, a rod-shaped product is extruded to produce a multilayered rod-shaped piece, and then this is pressed to form a thin plate. It is small compared to . Therefore, according to the molding method of the present invention, a multilayer container can be manufactured using a small-sized apparatus.
さら本発明の製造方法では、多層棒状片をプレス成形し
て薄肉板体とし、これを集成形して製品とするので、プ
レス工程で薄肉板体を適切む形状に成形して次の熱成形
工程で予想される偏向等の変形を予め補うことができる
。従って本発明の成形方法によれば、より品質の良い多
層容器を製造できる。Furthermore, in the manufacturing method of the present invention, a multilayer rod-shaped piece is press-formed into a thin plate, which is assembled into a product, so the thin plate is formed into an appropriate shape in the pressing process and then subjected to the next thermoforming process. Deformations such as deflection that are expected during the process can be compensated for in advance. Therefore, according to the molding method of the present invention, a multilayer container with better quality can be manufactured.
第１図は本発明の成形方法の一実施例の多層棒材成形工
程で得られた棒状片を示す斜視図、第２図は棒状品を押
出成形している状態を示す正面図、第３図はプレス工程
を示す正面図、第４図はプレス工程で製造された薄肉板
体を示す斜視図、第５図は同薄肉板体の断面図、第６図
は熱成形工程て使用するスチールベルトを示す平面図、
第７図は熱成形工程を示す断面図、第８図は熱成形して
得られた成形品を示す断面図、第９図および第１Ｏ図は
薄肉板体の他の形状を示す断面図、第１１図は薄肉板体
の他の形状を示す平面図、第１２図は第１１図中■−■
線視断面図、第１３図は棒状片の他の形状を示す斜視図
、第１４図および第１５図は従来の成形方法を説明する
ためのもので、第１４図は断面図、第１５図は平面図で
ある。
１４・・・棒状片、１５・・・中心部、１６ ・中間部
、１７・・外周部、１８・・・押出成形用グイ、１９・
・棒状品、２０・・・カッタ、２１・・・プレス金型、
２４・・・薄肉板体、２５・・中心層、２６・・・中間
層、２７・−・外層、３１・・・真空成形用金型。FIG. 1 is a perspective view showing a bar-shaped piece obtained in the multilayer bar forming process of one embodiment of the molding method of the present invention, FIG. 2 is a front view showing the state in which the bar-shaped article is extruded, and FIG. The figure is a front view showing the pressing process, Figure 4 is a perspective view showing the thin plate manufactured in the pressing process, Figure 5 is a sectional view of the thin plate, and Figure 6 is the steel used in the thermoforming process. A plan view showing the belt,
FIG. 7 is a sectional view showing the thermoforming process, FIG. 8 is a sectional view showing a molded product obtained by thermoforming, FIGS. 9 and 10 are sectional views showing other shapes of the thin plate body, Fig. 11 is a plan view showing another shape of the thin plate body, and Fig. 12 is a plan view of ■-■ in Fig. 11.
13 is a perspective view showing another shape of the rod-shaped piece, FIGS. 14 and 15 are for explaining a conventional molding method, FIG. 14 is a sectional view, and FIG. 15 is a plan view. 14... Rod-shaped piece, 15... Center portion, 16. Intermediate portion, 17.. Outer periphery portion, 18.. Gooey for extrusion molding, 19.
・Bar-shaped product, 20...Cutter, 21...Press mold,
24... Thin plate body, 25... Center layer, 26... Intermediate layer, 27... Outer layer, 31... Vacuum forming mold.
Claims (1)
して多層棒状片を製造する多層棒状片製造工程と、この
多層棒状片を当該棒状片をなす層と直交する方向から押
圧して薄肉板体とするプレス工程と、この薄肉板体を所
望形状に熱成形する熱成形工程とからなる多層容器の成
形方法。A multilayer bar manufacturing process involves extrusion molding a bar with a multilayer structure and then cutting the bar to produce a multilayer bar. The multilayer bar is then pressed from a direction perpendicular to the layers forming the bar to create a thin wall. A method for forming a multilayer container, which comprises a pressing process to form a plate and a thermoforming process to thermoform the thin plate into a desired shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2088457A JPH03286848A (en) | 1990-04-03 | 1990-04-03 | Method for molding multilayer container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2088457A JPH03286848A (en) | 1990-04-03 | 1990-04-03 | Method for molding multilayer container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03286848A true JPH03286848A (en) | 1991-12-17 |
Family
ID=13943324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2088457A Pending JPH03286848A (en) | 1990-04-03 | 1990-04-03 | Method for molding multilayer container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03286848A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464732A (en) * | 1993-06-04 | 1995-11-07 | Konica Corporation | Silver halide color photographic light-sensitive material |
| WO2016199446A1 (en) * | 2015-06-11 | 2016-12-15 | 富士フイルム株式会社 | Method for manufacture of conductive body for touch panel, conductive film layered body, and conductive body for touch panel |
-
1990
- 1990-04-03 JP JP2088457A patent/JPH03286848A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464732A (en) * | 1993-06-04 | 1995-11-07 | Konica Corporation | Silver halide color photographic light-sensitive material |
| WO2016199446A1 (en) * | 2015-06-11 | 2016-12-15 | 富士フイルム株式会社 | Method for manufacture of conductive body for touch panel, conductive film layered body, and conductive body for touch panel |
| JPWO2016199446A1 (en) * | 2015-06-11 | 2018-02-22 | 富士フイルム株式会社 | Manufacturing method of conductor for touch panel, conductive film laminate, and conductor for touch panel |
| US10514787B2 (en) | 2015-06-11 | 2019-12-24 | Fujifilm Corporation | Method for manufacturing conductor for touch panel, conductive film laminate, and conductor for touch panel |
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