JPH03197109A - Manufacture of pillared container - Google Patents
Manufacture of pillared containerInfo
- Publication number
- JPH03197109A JPH03197109A JP33940989A JP33940989A JPH03197109A JP H03197109 A JPH03197109 A JP H03197109A JP 33940989 A JP33940989 A JP 33940989A JP 33940989 A JP33940989 A JP 33940989A JP H03197109 A JPH03197109 A JP H03197109A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- resin
- container
- injection molding
- resin film
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 229920005989 resin Polymers 0.000 claims abstract description 83
- 239000011347 resin Substances 0.000 claims abstract description 82
- 238000001746 injection moulding Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 7
- 230000004927 fusion Effects 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 8
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 5
- 235000019645 odor Nutrition 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920006379 extruded polypropylene Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C45/14475—Joining juxtaposed parts of a single article, e.g. edges of a folded container blank
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、容器の製造方法、特に、予め、射出成形金型
キヤビテイ内にブランクシートをインサートしておき、
しかる後、射出成形樹脂によって筒状容器を形成するビ
ラード容器の製造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a container, in particular, a method for manufacturing a container, in which a blank sheet is inserted in advance into an injection mold cavity,
Thereafter, the present invention relates to a method of manufacturing a billard container in which a cylindrical container is formed by injection molding resin.
近年、プラスッチック容器はガラス瓶、缶などに比べ、
軽くて丈夫で輸送・保管に便利でコストが安価なためそ
の需要は益々拡大している。In recent years, plastic containers have become more popular than glass bottles and cans.
Its demand is increasing because it is light, durable, convenient to transport and store, and inexpensive.
このようなプラスッチック容器の製法の１つとして、■
射出成形により容器全体を一度に作る製造方法はもちろ
んのこと、■容器を一回で射出成形する代わりに容器を
側壁および底板等の細かい部分に分解し、これらの部分
を先ず成形しておき、次いでこれらの部分を射出成形に
より接合するピラード容器の製造方法もよく知られてい
る。One of the manufacturing methods for such plastic containers is ■
In addition to the production method of making the entire container at once by injection molding, ■Instead of injection molding the container at once, the container is broken down into small parts such as the side wall and bottom plate, and these parts are molded first. A method of manufacturing a pillared container in which these parts are then joined by injection molding is also well known.
特に、後者のピラード容器は、制作しうる容器の形態に
種々の限定が少なく、また、種々の樹脂を組み合わせて
使用可能なため、ニーズに応じた容器が制作可能という
メリット等を有するためその需要は年々増加している。In particular, the latter type of pillared containers has the advantage that there are fewer restrictions on the form of containers that can be produced, and it can be used in combination with various resins, so it is possible to produce containers that meet needs, so there is a strong demand for them. is increasing year by year.
このようなピラード容器の中でも特に、飲料容器として
用いられ、かつ、容器蓋をヒートシールして密封する必
要があるビラード容器の製造方法には、射出成形される
樹脂温度の制約が伴う。Among such pillared containers, the manufacturing method of billard containers, which are used as beverage containers and whose lids need to be sealed by heat sealing, is particularly accompanied by restrictions on the temperature of the resin used for injection molding.
すなわち、ピラード容器の製造に際し、射出成形樹脂の
温度を上げると射出成形樹脂の分解、劣化が起こり、容
器として形作ることができなかったり、後工程で行われ
る容器蓋のヒートシール性が悪くなるという問題が生じ
る。また、温度上昇による臭気も発生する。一方、射出
成形樹脂の温度を下げると、ブランクシートと射出成形
樹脂との融着ができなくなるという問題が生じる。In other words, when manufacturing pillared containers, raising the temperature of the injection molded resin causes decomposition and deterioration of the injection molded resin, making it impossible to form the container and impairing the heat-sealing properties of the container lid in the subsequent process. A problem arises. Odors are also generated due to the rise in temperature. On the other hand, when the temperature of the injection molding resin is lowered, a problem arises in that the blank sheet and the injection molding resin cannot be fused together.
このような実情に鑑み、本発明は、上記の問題点を解消
し、比較的射出成形樹脂温度が低めであっても金型内に
、収納されたブランクシートと射出成形樹脂との融着が
確実に行われ、がっ、射出樹脂の分解、劣化が極めて少
ないビラード容器の製造方法を提供することにある。In view of these circumstances, the present invention solves the above problems and prevents the fusion between the blank sheet stored in the mold and the injection molding resin even when the temperature of the injection molding resin is relatively low. It is an object of the present invention to provide a method for manufacturing billard containers that can be carried out reliably and in which decomposition and deterioration of the injected resin are extremely small.
上記課題を解決するため本発明は、射出成形金型のキャ
ビティ内に、予め、ブランクシートをキャビティ外形状
に沿わせて収納し、該収納されたシート端面の会合する
隙間および当該隙間に連接しブランクシートの内面ない
し外面にはみ出す接合部空間に射出成形樹脂を射出充填
することにより筒状容器を形成するビラード容器の製造
方法において、前記ブランクシートは、支持体シートの
上に樹脂フィルムを有する積層体構造をなし、当該樹脂
フィルムの厚さｔｌと、支持体シートの厚さｔ２との比
ｔ１／ｔ２は、０．１〜０．３であり、当該樹脂フィル
ムの上に前記射出成形樹脂を被着させて融合一体させ筒
状容器を形成するように構成する。In order to solve the above problems, the present invention stores a blank sheet in advance in the cavity of an injection mold along the outer shape of the cavity, and connects the blank sheet to the gap where the end surfaces of the stored sheet meet and the gap. In a billard container manufacturing method in which a cylindrical container is formed by injecting and filling an injection molding resin into a joint space protruding from the inner or outer surface of a blank sheet, the blank sheet is a laminated layer having a resin film on a support sheet. The ratio t1/t2 of the thickness tl of the resin film to the thickness t2 of the support sheet is 0.1 to 0.3, and the injection molding resin is placed on the resin film. It is configured to be applied and fused together to form a cylindrical container.
本発明は、射出成形金型のキャビティ内に、予め、所定
厚さの樹脂フィルムを有するブランクシートをキャビテ
ィ形状に沿わせて収納し、該収納されたシート端面の会
合する隙間および当該隙間に連接しブランクシートの内
面ないし外面にはみ出す接合部空間に射出成形樹脂を射
出充填することにより筒体のビラード容器を形成する。In the present invention, a blank sheet having a resin film of a predetermined thickness is stored in advance in a cavity of an injection mold along the shape of the cavity, and the blank sheet is connected to a gap where end surfaces of the stored sheet meet and to the gap. A cylindrical billard container is formed by injecting and filling injection molding resin into the joint space protruding from the inner or outer surface of the blank sheet.
この方法によれば、比較的射出成形樹脂温度が低めであ
ってもブランクシートと射出成形樹脂との融着が確実に
行われるため、射出成形樹脂の分解、劣化が抑えられる
。それゆえ、その後、例えばヒートシール蓋を用いてピ
ラード容器の開口部のヒートシールを行っても、ヒート
シールは安定かつ確実に行うことができ、しかも異臭の
発生をも抑えることができる。According to this method, even if the temperature of the injection molding resin is relatively low, the blank sheet and the injection molding resin are reliably fused, so that decomposition and deterioration of the injection molding resin can be suppressed. Therefore, even if the opening of the pillared container is subsequently heat-sealed using, for example, a heat-sealing lid, the heat-sealing can be performed stably and reliably, and the generation of foreign odors can also be suppressed.
以下、本発明の実施例を第１図乃至第３図に基づいて具
体的に説明する。Embodiments of the present invention will be specifically described below with reference to FIGS. 1 to 3.
第１図は本発明のピラード容器製造方法に用いられ、予
め、射出成形金型に収納しておくブランクシート２の断
面図を示したものである。FIG. 1 shows a cross-sectional view of a blank sheet 2 which is used in the method of manufacturing a pillared container of the present invention and which is stored in an injection mold in advance.
当該ブランクシート２は、第１図に示されるように支持
体シー）２１の上に樹脂フィルム２２が通常、接着層（
図示しない）を介して積層されており、この樹脂フィル
ムの厚さｔｌと、支持体シートの厚さｔ２との比ｔ １
／ｌ ２は、０．１〜０．３に設定される。この値が０
．３を越えると、後述する射出成形により接合される射
出成形樹脂とブランクシート２の樹脂フィルム２２との
融着が低温で十分に行われず、射出成形樹脂温度をかな
り高めに設定しなければならず、そのため、射出成形樹
脂の分解、劣化が発生したり、異臭が発生したりするこ
ととなる。As shown in FIG. 1, the blank sheet 2 has a resin film 22 on a support sheet 21, which is usually covered with an adhesive layer (
(not shown), and the ratio of the thickness tl of this resin film to the thickness t2 of the support sheet is t1.
/l2 is set to 0.1 to 0.3. This value is 0
．． If the temperature exceeds 3, the injection molding resin and the resin film 22 of the blank sheet 2 will not be sufficiently fused at low temperatures to be joined by injection molding, which will be described later, and the injection molding resin temperature must be set considerably high. As a result, the injection molded resin may be decomposed or deteriorated, or a strange odor may be generated.
一方、この値が０．１未満になると、射出成形圧及び熱
によって樹脂フィルム２２の層が流失してしまい、同様
に低めの射出成形樹脂温度での融着は困難となる。On the other hand, if this value is less than 0.1, the layer of the resin film 22 will be washed away by the injection molding pressure and heat, and similarly, it will be difficult to fuse the resin film 22 at a lower injection molding resin temperature.
なお、通常、樹脂フィルム２２の厚さは、３０〜９０μ
ｍ程度とされる。Note that the thickness of the resin film 22 is usually 30 to 90 μm.
It is said to be about m.
前記支持体シート２１は、容器の腰を形成するためのも
のであり、所定厚さの厚紙、樹脂含浸紙、樹脂シート、
樹脂と紙の複合シート等が用いられる。The support sheet 21 is for forming the stiffness of the container, and is made of cardboard of a predetermined thickness, resin-impregnated paper, resin sheet,
A composite sheet of resin and paper is used.
これに対して樹脂フィルム２２は、低温における射出成
形樹脂との融着を容易にするために設層されるのもであ
り、特に、インフレーション成形、Ｔダイ押出し成形等
で成形された各種の樹脂フィルムを樹脂フィルム２２と
して用いるのが好ましい結果を得る。これらのフィルム
は当該フィルムそのものの成形段階における酸化・劣化
がすくないとの理由に基ずくと考えられる。On the other hand, the resin film 22 is provided to facilitate fusion with injection molded resin at low temperatures, and is particularly suitable for various resins molded by inflation molding, T-die extrusion molding, etc. Using the film as the resin film 22 yields favorable results. This is believed to be based on the fact that these films are less susceptible to oxidation and deterioration during the forming stage of the film itself.
このような樹脂フィルム２２と支持体シート２１を有す
るブランクシート２は、第２図（ａ）に示されるように
、射出成形金型のキャビティ内（図示しない）に、予め
、金型キャビティ外形状に沿わせて収納される。As shown in FIG. 2(a), a blank sheet 2 having such a resin film 22 and a support sheet 21 is placed in a cavity (not shown) of an injection mold in advance to form an outer shape of the mold cavity. It is stored along the
該収納されたシート２の端面の会合する隙間Ｅ１および
当該隙間Ｅ１に連接しブランクシート２の内面ないし外
面にはみ出す接合部空間（第２図においては内面にはみ
だす接合部空間が金型コア内に設けられていることにな
る）に射出成形樹脂３を射出充填することにより筒状容
器が形成される。A gap E1 where the end faces of the stored sheets 2 meet, and a joint space connected to the gap E1 and protruding from the inner or outer surface of the blank sheet 2 (in Fig. 2, the joint space protruding to the inner surface is inside the mold core). A cylindrical container is formed by injecting and filling injection molding resin 3 into the container (which will be provided).
この場合には、シート２の樹脂フィルム２２側が容器の
内面側になるように金型キャビティ内に設置される。す
なわち、第３図に示されるように、射出成形樹脂３がシ
ート２の端面の会合する隙間Ｅ１を充填し、さらにシー
トの側面にはみだす接合部３２と接する側に樹脂フィル
ム２２が設けられる。In this case, the sheet 2 is installed in the mold cavity so that the resin film 22 side faces the inner surface of the container. That is, as shown in FIG. 3, the injection molded resin 3 fills the gap E1 where the end surfaces of the sheet 2 meet, and the resin film 22 is provided on the side that contacts the joint portion 32 that protrudes from the side surface of the sheet.
なお、前記支持体シート２１と樹脂フィルム２２との間
に通常、介在される接着層（図示しない）は、５〜４０
μｍ程度の押出成形樹脂層とすることが好適であるが、
接着剤によるラミネートとしてもよい。なお、第１図に
示される積層構成に加え、さらに用途に応じて適宜、種
々の中間層を介在させてもよいことは勿論である。Note that the adhesive layer (not shown) usually interposed between the support sheet 21 and the resin film 22 has a thickness of 5 to 40
It is preferable to form an extrusion molded resin layer with a thickness of approximately μm.
It may also be laminated with adhesive. In addition to the laminated structure shown in FIG. 1, it goes without saying that various intermediate layers may be interposed as appropriate depending on the application.
上述してきた本発明の実施例を以下の実験例に基づいて
さらに詳細に説明する。The embodiments of the present invention described above will be explained in more detail based on the following experimental examples.
実験例１
ブランクシートとして以下のサンプルシートを用意した
。Experimental Example 1 The following sample sheet was prepared as a blank sheet.
サンプル１（本発明）
支持体シート（積層体構造）
ポリプロピレン押出シート ３００μｍ（大日本樹脂
社製）
接着剤層
押出ポリプロピレン接着層 ２０μｍ（昭和電工社
製）
樹脂フィルム
ポリプロピレンインフレーション成形
フィルム ７０μｍ
（昭和電工社製）
サンプル２（比較例）
サンプル１の支持体シートおよび樹脂フィルムの厚さを
それぞれ３８０μｍ１２０μｍに変えた。Sample 1 (present invention) Support sheet (laminate structure) Extruded polypropylene sheet 300 μm (manufactured by Dainippon Jushi Co., Ltd.) Adhesive layer extruded polypropylene adhesive layer 20 μm (manufactured by Showa Denko Co., Ltd.) Resin film polypropylene inflation molding film 70 μm (manufactured by Showa Denko Co., Ltd.) Sample 2 (Comparative Example) The thickness of the support sheet and resin film of Sample 1 was changed to 380 μm and 120 μm, respectively.
それ以外は、サンプル１の場合と同様である。The rest is the same as in sample 1.
サンプル３（比較例）
サンプル１の支持体シートおよび樹脂フィルムの厚さを
それぞれ２９０μｍ ｓ １１０μｍに変えた。それ以
外は、サンプル１の場合と同様である。Sample 3 (Comparative Example) The thicknesses of the support sheet and resin film of Sample 1 were changed to 290 μm and 110 μm, respectively. The rest is the same as in sample 1.
サンプル４（比較例）
サンプル１の支持体シートの厚さを３９０μｍに変え、
接着剤層および樹脂フィルムは設けなかった。それ以外
は、サンプル１の場合と同様である。Sample 4 (comparative example) The thickness of the support sheet of sample 1 was changed to 390 μm,
No adhesive layer or resin film was provided. The rest is the same as in sample 1.
以上４種のブランクシートをそれぞれ、第２図（ａ）に
示されるように射出成形金型のキャビティ内に、キャビ
ティ外形状に沿わせて収納した。Each of the above four types of blank sheets was housed in a cavity of an injection mold along the outer shape of the cavity as shown in FIG. 2(a).
なお、樹脂フィルムを有するシートについては当該樹脂
フィルムが内面側にくるように設置した。Note that the sheet having a resin film was installed so that the resin film was on the inner surface side.
しかる後、射出成形金型を閉め、射出成形し、当該射出
成形樹脂をシート端面の会合する隙間および当該隙間に
連接しシートの内面にはみ出す接合部空間に射出充填し
た（第２図（ｂ））。After that, the injection molding mold was closed, injection molding was performed, and the injection molded resin was injected and filled into the gap where the sheet end surfaces met and the joint space that was connected to the gap and protruded from the inner surface of the sheet (Figure 2 (b) ).
なお射出成形樹脂温度は種々のものを選定して行った。Note that various injection molding resin temperatures were selected.
得られた成形品について、射出成形樹脂による融着性を
確認するとともに、成形品開口部を実際にヒートシール
蓋を用いてヒートシールテストを行った。Regarding the obtained molded product, the fusion properties of the injection molded resin were confirmed, and a heat seal test was conducted on the opening of the molded product using an actual heat seal lid.
結果は以下のとおりであった。The results were as follows.
すなわち、サンプル１については比較的射出成形樹脂温
度が低めであっても良好な融着性が得られ、ヒートシー
ル蓋のヒートシールも安定かつ確実に行えることが確認
された。That is, it was confirmed that sample 1 had good fusion properties even when the injection molding resin temperature was relatively low, and that the heat-sealing of the heat-sealed lid could be performed stably and reliably.
サンプル２については、射出成形圧及び射出温度を低く
しても樹脂フィルムが流失し、そのため射出成形樹脂温
度を高くしなければ良好な融着性かえられず、そのため
、射出樹脂の分解、劣化が起り、容器の割れ、異臭が激
しく、良好な容器を得られなかった。Regarding sample 2, even if the injection molding pressure and injection temperature were lowered, the resin film was washed away, so good fusion properties could not be achieved unless the injection molding resin temperature was increased, and as a result, decomposition and deterioration of the injected resin occurred. However, the container was cracked and had a strong odor, making it impossible to obtain a good container.
サンプル３については、樹脂フィルムが厚すぎるため、
射出成形樹脂温度を高くしなければ良好な融着性がえら
れず、そのため、サンプル２と同様に射出樹脂の分解、
劣化が生じてしまった。Regarding sample 3, because the resin film was too thick,
Good fusion properties cannot be obtained unless the temperature of the injection molding resin is raised, and therefore, as in sample 2, the injection resin decomposes and
Deterioration has occurred.
サンプル４についてもまた、サンプル２．３と同様に射
出成形樹脂温度を高くしなければ良好な融着性がえられ
ず、そのため、サンプル２，３同様に、良好な容器は得
られなかった。Regarding Sample 4, as with Samples 2.3, good fusion properties could not be obtained unless the temperature of the injection molding resin was raised, and therefore, like Samples 2 and 3, a good container could not be obtained.
以上の結果より本発明の効果は明らかである。 From the above results, the effects of the present invention are clear.
すなわち、本発明のビラード容器の製造方法は、射出成
形金型のキャビティ内に、予め、所定厚さの樹脂フィル
ムを有するブランクシートをキャビティ形状に沿わせて
収納し、該収納されたシート端面の会合する隙間および
当該隙間に連接しブランクシートの内面ないし外面には
み出す接合部空間に射出成形樹脂を射出充填することに
より筒状容器を形成するので、射出成形樹脂温度が比較
的低めであってもブランクシートと射出成形樹脂との融
着は確実に行われ、射出成形樹脂の分解、劣化が抑えら
れる。それゆえ、その後、例えばヒートシール蓋を用い
てピラード容器の開口部のヒートシールを行っても、ヒ
ートシールは安定かつ確実に行うことができ、異臭の発
生もなく良好な容器が形成できる。That is, in the Billard container manufacturing method of the present invention, a blank sheet having a resin film of a predetermined thickness is stored in advance in a cavity of an injection mold along the shape of the cavity, and the end surface of the stored sheet is The cylindrical container is formed by injecting and filling the injection molding resin into the gaps where they meet and the joint spaces that protrude from the inner or outer surface of the blank sheet, so even if the temperature of the injection molding resin is relatively low. The blank sheet and the injection molded resin are reliably fused together, and decomposition and deterioration of the injection molded resin is suppressed. Therefore, even if the opening of the pillared container is subsequently heat-sealed using, for example, a heat-sealing lid, the heat-sealing can be performed stably and reliably, and a good-quality container can be formed without generating any strange odor.
第１図は本発明のピラード容器製造方法に用いられ、予
め、射出成形金型に収納しておくブランクシートの断面
図、第２図（ａ）、（ｂ）はそれぞれ、本発明のピラー
ド容器製造方法の概略説明図、第３図はブランクシート
と射出成形樹脂との融着状態を示す部分拡大図である。
２・・・ブランクシート、２１・・・支持体シート、２
２・・・樹脂フィルム、３・・・射出成形樹脂、３２・
・・接合部。FIG. 1 is a cross-sectional view of a blank sheet used in the method of manufacturing a pillared container of the present invention and stored in an injection mold in advance, and FIGS. 2(a) and (b) are respectively A schematic explanatory diagram of the manufacturing method, and FIG. 3 is a partially enlarged view showing the state of fusion between the blank sheet and the injection molded resin. 2...Blank sheet, 21...Support sheet, 2
2... Resin film, 3... Injection molded resin, 32.
・Joint part.
Claims (1)
をキャビティ外形状に沿わせて収納し、該収納されたシ
ート端面の会合する隙間および当該隙間に連接しブラン
クシートの内面ないし外面にはみ出す接合部空間に射出
成形樹脂を射出充填することにより筒状容器を形成する
ピラード容器の製造方法において、 前記ブランクシートは、支持体シートの上に樹脂フィル
ムを有する積層体構造をなし、当該樹脂フィルムの厚さ
ｔ１と、支持体シートの厚さｔ２との比ｔ１／ｔ２は、
０．１〜０．３であり、当該樹脂フィルムの上に前記射
出成形樹脂を被着させて融合一体させ筒状容器を形成す
ることを特徴とするピラード容器の製造方法。[Claims] A blank sheet is stored in advance in a cavity of an injection mold along the outer shape of the cavity, and a gap where the end surfaces of the stored sheet meet and an inner surface of the blank sheet connected to the gap are In a method for manufacturing a pillared container, in which a cylindrical container is formed by injecting and filling an injection molding resin into a joint space protruding from the outer surface, the blank sheet has a laminate structure having a resin film on a support sheet. , the ratio t1/t2 of the thickness t1 of the resin film and the thickness t2 of the support sheet is:
0.1 to 0.3, and the method for manufacturing a pillared container is characterized in that the injection molded resin is applied onto the resin film and fused together to form a cylindrical container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33940989A JPH03197109A (en) | 1989-12-27 | 1989-12-27 | Manufacture of pillared container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33940989A JPH03197109A (en) | 1989-12-27 | 1989-12-27 | Manufacture of pillared container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03197109A true JPH03197109A (en) | 1991-08-28 |
Family
ID=18327200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33940989A Pending JPH03197109A (en) | 1989-12-27 | 1989-12-27 | Manufacture of pillared container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03197109A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006182411A (en) * | 2004-12-28 | 2006-07-13 | Dainippon Printing Co Ltd | In-mold container and its manufacture method |
| JP2007297064A (en) * | 2006-04-27 | 2007-11-15 | Yoshino Kogyosho Co Ltd | Container stuck with paper-made covering body |
| EP3023218A1 (en) * | 2014-11-21 | 2016-05-25 | Topcap AB | A method and a device for manufacturing of a package container |
-
1989
- 1989-12-27 JP JP33940989A patent/JPH03197109A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006182411A (en) * | 2004-12-28 | 2006-07-13 | Dainippon Printing Co Ltd | In-mold container and its manufacture method |
| JP2007297064A (en) * | 2006-04-27 | 2007-11-15 | Yoshino Kogyosho Co Ltd | Container stuck with paper-made covering body |
| EP3023218A1 (en) * | 2014-11-21 | 2016-05-25 | Topcap AB | A method and a device for manufacturing of a package container |
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