JP2016210497A - Method for providing easily openable property to heat-sealed opening of container - Google Patents

Method for providing easily openable property to heat-sealed opening of container Download PDF

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JP2016210497A
JP2016210497A JP2015104942A JP2015104942A JP2016210497A JP 2016210497 A JP2016210497 A JP 2016210497A JP 2015104942 A JP2015104942 A JP 2015104942A JP 2015104942 A JP2015104942 A JP 2015104942A JP 2016210497 A JP2016210497 A JP 2016210497A
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container
heat
cooling
pressing
opening
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陞一 山並
Shoichi Yamanami
陞一 山並
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Abstract

PROBLEM TO BE SOLVED: To reduce intensity of heat seal at an opening to make the opening easier to open.SOLUTION: Methods for a process to coat thermoplastic resin onto a container base material 04 include: a method for forming predetermined-depth-recessed parts 02 in a heat-sealed surface 01 of a container material by pressing and cooling it with a pressing-cooling surface having predetermined-height-projecting parts when a resin film 03 is in a molten state; and a method for forming predetermined-depth-recessed parts in a heat-sealed surface of a packaging material coated with the thermoplastic resin before formation by heating and melting, to a predetermined depth, a resin layer in a required zone to be provided with an easy openability, and then by pressing and cooling the molten resin layer with a pressing-cooling surface having projecting parts.SELECTED DRAWING: Figure 1

Description

ヒートシール密閉容器開口部の一部に易開封性を付与する方法Method for imparting easy opening to a part of an opening of a heat-sealed sealed container

大量生産に用いる容器は、ヒートシールによる密封後の開口に器具を用いて開口する、あるいは開口のため付与した切欠きから裂断を誘導して開口するなど、いずれも開口時に容器を把持して圧迫する結果、包装内容物を噴出させ容器や開口現場の汚染が開口に伴う。器具を用いないヒートシール密閉容器の開口には容器に切欠きを付与して裂断を誘導するのが一般であるが、容器の構造や素材によっては切欠きを付与できない容器があって、切欠きはすべてのヒートシール容器に有効な開口手段ではない。Containers used for mass production, such as opening with a tool in the opening after sealing by heat sealing, or opening by inducing tearing from the notch provided for opening, hold the container at the time of opening. As a result of the compression, the contents of the package are ejected and contamination of the container and the opening site accompanies the opening. In general, the opening of a heat-sealed sealed container that does not use equipment is notched in the container to induce tearing.However, depending on the structure and material of the container, there are containers that cannot be given a notch. The notch is not an effective opening means for all heat seal containers.

発明が解決しようとする課題Problems to be solved by the invention

大量生産に用いるヒートシール容器は、器具を用いて開口する、あるいは付与した切欠きから裂断を誘導して開口するなどいずれも、容器の圧迫が包装内容物を噴出させて容器や開口現場を汚染する問題を伴う。これを解決するため、開口部に予めシール緩和処理を施して開口時に器具や切欠きを必要とせず密封後の開口を容易にし、把持による容器圧迫が包装内容物を噴出させて容器や開口現場の汚染を生じないために、開口部のヒートシールを緩和し開口を容易にする方法が求められる。Heat seal containers used for mass production, such as opening with an instrument or inducing tearing from a notch provided, open the contents of the container and the opening site by the container pressure blowing out the package contents. With the problem of contamination. In order to solve this, the opening is pre-sealed to ease the opening after sealing without the need for tools or notches at the time of opening. Therefore, there is a need for a method for relaxing the heat sealing of the opening and facilitating the opening.

課題を解決するための方法How to solve the problem

課題を解決する方法として、容器基材に熱可塑性樹脂を被覆する工程で樹脂膜が溶融状態時に所定の高さの突起部を配設した圧締冷却面で押圧冷却して容器素材のヒートシール面に所要の深さの凹部を形成しシール時に当該凹部には圧締面圧を印加せず空隙を残してシールを行うことによって容器に易開封性を付与する方法と、樹脂被覆済み包材の場合にはヒートシール面の所要の易開封部分を所定の温度に溶融し所要の深さの凹部面を形成冷却しヒートシール時にこの凹部に圧締圧をかけず凹部を空隙で残すことによって容器に易開封性を付与する方法がある。As a method for solving the problem, the container material is heat-sealed by pressing and cooling on a pressure-cooling cooling surface provided with a protrusion having a predetermined height when the resin film is in a molten state in the process of coating the container base with the thermoplastic resin. A method of providing a container with easy opening by forming a recess having a required depth on the surface and applying a sealing surface without applying a pressing surface pressure to the recess when sealing, and a resin-coated packaging material In this case, the required easy-opening portion of the heat seal surface is melted to a predetermined temperature to form and cool a concave surface having a predetermined depth, and the concave portion is left as a gap without applying pressure to the concave portion during heat sealing. There is a method for imparting easy-openability to a container.

発明の効果Effect of the invention

容器素材のヒートシール面の一部区画に凹部を形成することによって当該凹部をシール時の圧締面圧から解放し空隙を残す結果成型密封した容器の開口部に易開封性を付与することができる。By forming a recess in a part of the heat seal surface of the container material, the recess is released from the pressing surface pressure at the time of sealing, and as a result, leaving an air gap, it is possible to impart easy opening to the molded and sealed container opening. it can.

凹部を空隙にしたヒートシール断面を示す図 ［符号の説明］０１はヒートシール面を示す ０２はシール面の所要区画に形成した凹部を示す ０３は樹脂コーティングを示す ０４は容器素材の基材を示す ０５は樹脂コーティングを示すFigure showing a heat seal cross section with a recess as a gap [Explanation of symbols] 01 indicates a heat seal surface 02 indicates a recess formed in a required section of the seal surface 03 indicates a resin coating 04 indicates a base material of a container material 05 indicates resin coating

樹脂層被覆面に形成した凹部を示す図 ［符号の説明］０１はヒートシール面を示す ０２はシール面の所要区画に形成した凹部を示すThe figure which shows the recessed part formed in the resin layer coating | coated surface [Description of code | symbol] 01 shows a heat seal surface 02 shows the recessed part formed in the required division of the seal surface

樹脂被覆工程で樹脂層に凹部を形成する方法を示す図 ［符号の説明］１１は凹部を押圧形成するローラを示す １２は被覆樹脂押し出し機を示すThe figure which shows the method of forming a recessed part in a resin layer in a resin coating process [Explanation of numerals] 11 shows a roller which presses and forms a recessed part 12 shows a covering resin extrusion machine

樹脂層被覆済み包材に凹部を形成する方法を示す図 ［符号の説明］１１は凹部を押圧形成するローラを示す １３は被覆樹脂層軟化加熱装置を示すThe figure which shows the method of forming a recessed part in the resin-layer-coated packaging material [Explanation of numerals] 11 shows the roller which presses and forms the recessed part 13 shows the covering resin layer softening heating device

凹部を形成する押圧冷却ロールを示す図 ［符号の説明］１１はロールを示す ２１は凹部を形成する押圧冷却ロールを示すThe figure which shows the press cooling roll which forms a recessed part [Explanation of numerals] 11 shows a roll 21 shows the press cooling roll which forms a recessed part

シール面の凹部を示す図The figure which shows the crevice of a seal face

空隙を残したヒートシール層の断面を示す図The figure which shows the section of the heat seal layer which left the gap

本発明の実施の形態を図１、図３および図４に基づいて説明する。
図１は凹部を挟んで空隙を残したヒートシール部の断面で、０４は容器基材である。図３は巻き取りの状態の容器基材に熱可塑性樹脂を両面にコーティングする工程を示す図で、内容物を包む面へ熱可塑性樹脂を溶融被覆時に凹部を押圧形成する突起部を配設した押圧冷却ローラ１１により所定の凹部を形成すると同時に樹脂層を圧締冷却する。
すでに両面を熱可塑性樹脂コーティング済みの包材の場合には、図４に示すように被覆樹脂層の凹部を設ける面を加熱して凹部を押圧形成する突起部を配設したローラ１１により所定の凹部を形成すると同時に樹脂層を冷却する。An embodiment of the present invention will be described with reference to FIGS. 1, 3, and 4. FIG.
FIG. 1 is a cross-sectional view of a heat seal part that leaves a gap with a recess, and 04 is a container base material. FIG. 3 is a view showing a process of coating a thermoplastic resin on both surfaces of a container base in a wound state, and a protrusion for pressing a concave portion is disposed on the surface for wrapping the contents when the thermoplastic resin is melt-coated. A predetermined recess is formed by the pressure cooling roller 11 and at the same time, the resin layer is cooled by pressing.
In the case of a packaging material that has already been coated with a thermoplastic resin on both sides, as shown in FIG. The resin layer is cooled simultaneously with the formation of the recess.

Claims (2)

容器基材に熱可塑性樹脂を被覆する工程で樹脂膜が溶融状態時に所定の高さの突起部を配設した圧締冷却面で押圧冷却して容器素材のヒートシール面に所要の深さの凹部を形成しシール時に当該凹部には圧締面圧を加えず空隙を残してシールを行うことによって容器に易開封性を付与する方法In the process of coating the container base material with the thermoplastic resin, when the resin film is in a molten state, it is pressure-cooled by a pressure-cooling cooling surface provided with a projection of a predetermined height, and the heat-seal surface of the container material has a required depth. Method for imparting easy-openability to a container by forming a recess and performing sealing while leaving a gap without applying a pressing surface pressure to the recess. 熱可塑性樹脂をコーティングした包材のヒートシール面に易開封性を付与すべき所定の区画の樹脂層を所定の深さまで溶融状態に加熱し所要の高さの突起部を配設した押圧冷却面で溶融部を押圧冷却して所定の深さの凹部を形成しシール時に当該凹部には圧締面圧を加えず空隙を残してシールを行うことによって容器に易開封性を付与する方法A pressure-cooling surface in which a resin layer in a predetermined section to be easily opened on a heat-sealing surface of a packaging material coated with a thermoplastic resin is heated to a predetermined depth in a molten state, and a protrusion having a predetermined height is disposed. A method of imparting easy-openability to a container by forming a recess of a predetermined depth by pressing and cooling the melted portion and sealing the recess without applying a pressing surface pressure to the recess while sealing.
JP2015104942A 2015-05-07 2015-05-07 Method for providing easily openable property to heat-sealed opening of container Pending JP2016210497A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0999935A (en) * 1995-10-04 1997-04-15 Dainippon Printing Co Ltd Liquid paper container
JPH10157034A (en) * 1996-12-02 1998-06-16 Dainippon Printing Co Ltd Heat sealable lid material
JP2000355366A (en) * 1999-06-15 2000-12-26 Oji Paper Co Ltd Easily openable lid member for paper container
JP2013193781A (en) * 2012-03-22 2013-09-30 Toppan Printing Co Ltd Lid material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0999935A (en) * 1995-10-04 1997-04-15 Dainippon Printing Co Ltd Liquid paper container
JPH10157034A (en) * 1996-12-02 1998-06-16 Dainippon Printing Co Ltd Heat sealable lid material
JP2000355366A (en) * 1999-06-15 2000-12-26 Oji Paper Co Ltd Easily openable lid member for paper container
JP2013193781A (en) * 2012-03-22 2013-09-30 Toppan Printing Co Ltd Lid material

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