JP2014091531A - Blow-molded container - Google Patents
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本発明は、ブロー成形容器、特に使用全期間を通して安定して内層の潰れ減容変形を規制し、内容物の注出路を安定して確保することが可能であり、使用最後までスムーズなスクイズ感で内容物を注出することが可能なブロー成形容器に関するものである。 The present invention is capable of stably regulating the collapse and volumetric deformation of the inner layer throughout the blow-molded container, especially during the entire period of use, and can stably secure the pouring path for the contents, and has a smooth squeeze feeling until the end of use. It is related with the blow molding container which can pour the content by.
外殻を形成する外層内に、内容物を収容する潰れ減容変形自在な内袋としての内層を、剥離可能に積層し、大気を内層内に吸引することなく内容物の注出を可能とした、積層剥離容器と称されているブロー成形容器が知られている。この積層剥離容器においては、内容物が注出されるに従って、ボトルの一部、例えば口部外周面に設けられた吸気孔から外層と内層の間に大気が侵入して、その大気圧によって内層が外層から剥離して潰れ減容変形する、いわゆるデラミ現象が発生する。このデラミ現象は、内容物に作用する重力の影響によって、内層の上方から下方に向かって進行する。従って、内容物の残量が少ない使用後半においては、内層同士の密着が進行し、内袋の注出口に至る注出路が狭くなり、その結果、ボトルの胴部を押した時の手の感覚が重くなるという問題があった。 In the outer layer that forms the outer shell, the inner layer as a collapsible and volume-reducing deformable inner bag that accommodates the contents can be peeled and the contents can be poured out without sucking the atmosphere into the inner layer. A blow-molded container called a delamination container is known. In this delamination container, as the contents are poured out, air enters between the outer layer and the inner layer from a part of the bottle, for example, the intake hole provided in the outer peripheral surface of the mouth, and the inner layer is formed by the atmospheric pressure. A so-called delamination phenomenon occurs in which the outer layer peels off and is crushed and deformed. This delamination phenomenon proceeds from the upper part to the lower part of the inner layer due to the influence of gravity acting on the contents. Therefore, in the second half of use, when the remaining amount of the content is low, the inner layers are closely adhered to each other, and the pouring path leading to the inner bag spout is narrowed. As a result, the feeling of the hand when the bottle body is pushed There was a problem that became heavy.
この問題を解消する手段として、積層剥離容器の全高さ範囲に亘って、一つの縦帯状の接着層と、この接着層の反対側に位置する、外層の一部で挟み込み状に保持する挟持部とにより、内層の潰れ減容変形に対して一定した規制力を作用させ、これにより内層を規則的に扁平潰れ減容変形させて、内容物の注出路を確保し易くなるように構成されたブロー成形容器が知られている（例えば、特許文献１を参照。）。 As a means to solve this problem, a longitudinal strip-like adhesive layer and a sandwich portion that is sandwiched by a part of the outer layer located on the opposite side of the adhesive layer over the entire height range of the delamination container Thus, a constant regulating force is applied to the deformation and deformation of the inner layer, whereby the inner layer is regularly flattened and reduced and deformed, so that it is easy to secure the content extraction path. Blow molded containers are known (see, for example, Patent Document 1).
上記ブロー成形容器では、接着層と挟持部とを不動部分としているので、内層はこの接着層と挟持部を含む縦切断面に対して垂直方向から押し潰される形態で潰れ減容変形することになり、挟持部は内層の潰れ減容変形の基本的な方向性を規制することになる。従って、挟持部が形成される範囲の高さ方向の位置、長さ、および個数を適宜調整することにより、内層の潰れ減容変形が規則的に進行し、使用全期間を通して内容物の注出路を確保させることが可能となる。
しかし、実際は、上記ブロー成形容器においても使用後半において、上記挟持部と接着層は、内層の潰れ減容変形規制手段としては十分に機能しない場合があり、その場合、内層同士の密着が進行し、ユーザが胴部を押した時の手の感覚が重くなる（押し感が重くなる）という問題点があった。この点においては、上記ブロー成形容器は更なる改良の余地があった。
そこで、本発明は、上記従来技術の課題に鑑みなされたものであって、使用全期間を通して安定して内層の潰れ減容変形を規制し、内容物の注出路を安定して確保することが可能であり、使用最後までスムーズなスクイズ感で内容物を注出することが可能なブロー成形容器を提供することを目的とする。
In the blow molded container, since the adhesive layer and the sandwiching portion are immobile parts, the inner layer is crushed and deformed in a form that is crushed from the vertical direction with respect to the longitudinal cut surface including the adhesive layer and the sandwiching portion. Thus, the sandwiching portion regulates the basic directionality of the inner layer collapse and volume reduction deformation. Therefore, by appropriately adjusting the position, length, and number in the height direction of the range where the sandwiching portions are formed, the inner layer collapses and deforms regularly, and the content extraction channel is used throughout the entire period of use. Can be secured.
However, in fact, in the latter half of the use in the blow molded container, the sandwiching portion and the adhesive layer may not function sufficiently as the inner layer crushing and volume reduction regulating means. There is a problem that the feeling of the hand when the user presses the torso becomes heavy (the feeling of pressing becomes heavy). In this respect, the blow molded container has room for further improvement.
Therefore, the present invention has been made in view of the above-described problems of the prior art, and can stably control the deformation and volumetric deformation of the inner layer throughout the entire period of use, and can stably secure the content extraction path. An object of the present invention is to provide a blow molded container that can be poured out with a smooth squeeze feeling until the end of use.
上記技術的課題を解決するための本発明に係る第１の技術的手段は、外殻を形成する外層と、該外層に対し剥離可能に且つ潰れ減容変形自在に積層された内層とから成る有底筒状の胴部と、該外層の一部で該内層の一部を挟み込み状に保持する縦突条状の挟持部とを備えたボトル状のブロー成形容器であって、
前記挟持部の中間部位において、前記外層と前記内層が水平方向両側から圧接されて剥離不能に密着一体化された圧着部が形成されていることを特徴とする。
A first technical means according to the present invention for solving the above technical problem comprises an outer layer forming an outer shell, and an inner layer laminated on the outer layer so as to be peelable and crushed and reduced in volume. A bottle-shaped blow-molded container comprising a bottomed cylindrical body portion and a vertical protrusion-shaped sandwiching portion that sandwiches and holds a part of the inner layer with a part of the outer layer,
In the intermediate part of the clamping part, the outer layer and the inner layer are press-contacted from both sides in the horizontal direction, and a pressure-bonding part in which they are tightly integrated so as not to be peeled is formed.
上記圧着部では、外層によって内層が挟み込まれた、内層の潰れ減容変形規制手段としての挟持部がその中間部位において水平方向両側から圧接され、外層と内層ならびに内層同士が水平方向両側から完全に押し潰され密着一体化した状態にある。また、この内層同士の密着状態は外層によって強固に安定して保持さている。その結果、この圧着部によって強い安定した張力が内層の面内に負荷されることになり、この圧着部は安定して内層の潰れ減容変形の方向性を規制すると共に、その規制力も従来の挟持部のみの構成に比べ強化されることになる。
また、この密着部においては外層と内層ならびに内層同士が水平方向両側から完全に押し潰され密着一体化した状態にあり、構造的に安定している。従って、この圧着部が形成される胴部の高さ範囲の位置、長さ、および個数を適宜調整することにより、使用全期間を通して、安定して内層の潰れ減容変形の方向性を規制し、内容物がスムーズに注出するための注出路を確保するように作用し、ユーザは使用最後までスムーズなスクイズ感で内容物を注出することが出来るようになる。
従って、上記圧着部は、接着層と共に或いは接着層に代わる内層の潰れ減容変形規制手段として好適に機能する。
In the crimping part, the inner layer is sandwiched by the outer layer, and the sandwiching part as the inner layer crushing volume reduction regulating means is pressed from both sides in the horizontal direction at the intermediate portion, and the outer layer, the inner layer and the inner layers are completely separated from both sides in the horizontal direction. It is in a state of being crushed and closely integrated. Further, the close contact state between the inner layers is firmly and stably held by the outer layer. As a result, a strong and stable tension is loaded in the plane of the inner layer by the crimping part, and the crimping part stably regulates the direction of the inner layer's collapse and volumetric deformation, and the regulation force is also the same as that of the conventional one. It is strengthened compared to the configuration of only the sandwiching part.
Moreover, in this contact portion, the outer layer, the inner layer, and the inner layers are completely crushed from both sides in the horizontal direction and are in close contact with each other, and are structurally stable. Therefore, by appropriately adjusting the position, length, and number of the height range of the body part where the crimping part is formed, the direction of deformation and volumetric deformation of the inner layer can be regulated stably throughout the entire period of use. It acts to secure a pouring path for smoothly pouring the contents, and the user can pour the contents with a smooth squeeze feeling until the end of use.
Therefore, the above-mentioned pressure-bonding part suitably functions as a crushing volume reduction deformation regulating means for the inner layer in place of or in place of the adhesive layer.
本発明に係る第２の技術的手段は、前記圧着部が該胴部の高さ範囲に亘って断続的または連続的に形成されている、ことにある。 The second technical means according to the present invention is that the pressure-bonding portion is formed intermittently or continuously over a height range of the body portion.
上記構成では、陥没部によって内層の収容容積が減少することになる。しかし、上記構成の圧着部は、容器の大きさ又は内容物の特性に拘わらず、使用全期間を通して、安定して内層の潰れ減容変形の方向性を規制し、内容物がスムーズに注出するための注出路を確保するように作用し、ユーザは使用最後までスムーズなスクイズ感で内容物を注出することが出来るようになる。従って、上記構成は上記欠点を補ってもなお余りある効果を有している。 In the above configuration, the accommodation volume of the inner layer is reduced by the depressed portion. However, the crimping part with the above configuration stably regulates the direction of collapse and volumetric deformation of the inner layer throughout the entire period of use, regardless of the size of the container or the characteristics of the contents, and the contents are poured out smoothly. Thus, the user can dispense the contents with a smooth squeeze feeling until the end of use. Therefore, the above-described configuration has an effect that is still excessive even if the above-mentioned drawback is compensated.
本発明に係る第３の技術的手段は、前記圧着部は前記胴部の横断面において中心軸対称に形成されている、ことにある。 According to a third technical means of the present invention, the crimping part is formed symmetrically with respect to the central axis in the cross section of the body part.
上記構成では、内層の潰れ減容変形規制手段としての接着層を省略することが出来る。外層に係る溶融樹脂、内層に係る溶融樹脂を共押出機により押し出して積層する際、接着層に係る溶融樹脂を介さずに積層することになるため、材料コストの低減をもたらすことが可能となる。 In the above configuration, the adhesive layer as the means for restricting the deformation and deformation of the inner layer can be omitted. When the molten resin related to the outer layer and the molten resin related to the inner layer are extruded and laminated by a co-extruder, the molten resin related to the adhesive layer is laminated without being interposed, so that it is possible to reduce the material cost. .
本発明に係る第４の技術的手段は、外層と内層が積層されたパリソンを、胴部金型の等分縦断面に関して対称に該胴部金型側壁の一部がそれぞれ内側に張り出した張り出し部と、該張り出し部に挟みこまれた挟持部金型とを備えたブロー成形金型でブローさせて容器を成形するブロー成形方法であって、
前記パリソンをブローさせた後に、前記挟持部金型の突出方向の中間部位において、外層と内層を水平方向両側から圧接して剥離不能に密着一体化させるスライドピンを備えることを特徴とする。
According to a fourth technical means of the present invention, a parison in which an outer layer and an inner layer are laminated is bulged in such a manner that a part of the side wall of the body mold projects inward symmetrically with respect to an equally divided longitudinal section of the body mold. A blow molding method in which a container is formed by blowing with a blow molding die having a portion and a sandwiching die that is sandwiched between the overhang portions,
After the parison is blown, a slide pin is provided in which the outer layer and the inner layer are pressed from both sides in the horizontal direction so as to be brought into close contact with each other at the intermediate portion in the projecting direction of the clamping mold.
上記構成では、上記第１の技術的手段に係るブロー成形容器を好適に製造することが可能となる。 With the above configuration, the blow molded container according to the first technical means can be suitably manufactured.
本発明のブロー成形容器によれば、内層の潰れ減容変形規制手段としての挟持部がその中間部位において水平方向両側から圧接され、外層と内層ならびに内層同士が水平方向両側から完全に押し潰され密着一体化した状態にある。また、この内層同士の密着状態は外層によって強固に安定して保持さている。更に、この圧着部は構造的に安定している。その結果、この圧着部によって強い安定した張力が内層の面内に常時負荷されることになり、この圧着部は安定して内層の潰れ減容変形の方向性を規制すると共に、その規制力も従来の挟持部のみの構成に比べ強化されることになる。従って、この圧着部が形成される胴部の高さ範囲の位置、長さ、および両側あるいは片側を適宜調整することにより、使用全期間を通して、安定して内層の潰れ減容変形の方向性を規制し、内容物がスムーズに注出するための注出路を好適に確保するように作用し、ユーザは使用最後までスムーズなスクイズ感で内容物を注出することが出来るようになる。
また、本発明のブロー成形方法によれば、ブロー成形時において容易に安定して容器の挟持部を水平方向両側から圧着することができ上記ブロー成形容器を好適に製造することが可能となる。
According to the blow-molded container of the present invention, the sandwiching portion as the inner layer crushing volume reduction deformation regulating means is pressed from both sides in the horizontal direction at the intermediate portion, and the outer layer and the inner layer and the inner layers are completely crushed from both sides in the horizontal direction. It is in a tightly integrated state. Further, the close contact state between the inner layers is firmly and stably held by the outer layer. Furthermore, this crimping part is structurally stable. As a result, a strong and stable tension is constantly applied to the surface of the inner layer by the crimping portion, and the crimping portion stably regulates the direction of the collapse and volumetric deformation of the inner layer, and the regulation force is also conventionally limited. This is strengthened as compared with the configuration of only the sandwiching portion. Therefore, by appropriately adjusting the position, length, and both sides or one side of the height range of the body part where the crimping part is formed, the direction of the collapse and volumetric deformation of the inner layer can be stabilized throughout the entire period of use. It regulates and acts so as to favorably secure a pouring path for smoothly pouring the contents, so that the user can pour the contents with a smooth squeeze feeling until the end of use.
Further, according to the blow molding method of the present invention, the sandwiched portion of the container can be pressure-bonded from both sides in the horizontal direction easily and stably at the time of blow molding, and the blow molded container can be suitably manufactured.
以下、図に示す実施の形態により本発明をさらに詳細に説明する。 Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings.
図１は、本発明のブロー成形容器の一実施例である積層剥離容器１００を示す要部説明図である。図２は、図１のＡ−Ａ断面図である。
この積層剥離容器１００は、外層１と内層２が縦帯状の接着層９を介して積層された多層パリソンを後述の割金型内でブロー成形することにより成形される。その構成は、口部３と、胴部４と、底部５とから構成され、口部３には大気を外層１と内層２の層間に取り込む吸気孔３ａが設けられている。
FIG. 1 is an explanatory view of a main part showing a laminate peeling container 100 which is an embodiment of a blow molded container of the present invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG.
The delamination container 100 is formed by blow-molding a multi-layer parison in which an outer layer 1 and an inner layer 2 are laminated via a vertical belt-like adhesive layer 9 in a split mold described later. The structure includes a mouth portion 3, a body portion 4, and a bottom portion 5. The mouth portion 3 is provided with an intake hole 3a for taking air between the outer layer 1 and the inner layer 2.
外層１は胴部４の外殻を形成し、内層２は外層１に対し剥離可能に積層しながら内容物を収容する内袋を形成する。外層１と内層２は相容性が低い合成樹脂からそれぞれ成る。一例を挙げると、外層１は、例えば低密度ポリエチレン製樹脂（ＬＤＰＥ）から成り、一方、内層２は低密度ポリエチレン製樹脂との相容性がほとんどない例えばナイロン製樹脂から成るが、これらに限定されることはない。 The outer layer 1 forms an outer shell of the body portion 4, and the inner layer 2 forms an inner bag that accommodates the contents while being peelably laminated on the outer layer 1. The outer layer 1 and the inner layer 2 are made of synthetic resins having low compatibility. For example, the outer layer 1 is made of, for example, a low density polyethylene resin (LDPE), while the inner layer 2 is made of, for example, a nylon resin that has little compatibility with the low density polyethylene resin. It will never be done.
接着層９は、外層１および内層２の双方に対して接着性を発揮する合成樹脂から成る。一例を挙げると、上記低密度ポリエチレン（ＬＤＰＥ）製樹脂および上記ナイロン製樹脂の双方に対し接着性を発揮する、例えば接着性ポリオレフィン樹脂（例えば、三井化学社製のアドマー）から成る。 The adhesive layer 9 is made of a synthetic resin that exhibits adhesion to both the outer layer 1 and the inner layer 2. For example, it is made of, for example, an adhesive polyolefin resin (for example, Admer made by Mitsui Chemicals) that exhibits adhesion to both the low density polyethylene (LDPE) resin and the nylon resin.
この積層剥離容器１００の動作を簡単に説明すると、先ず、胴部４を指で両側から押圧すると、外層１と内層２は共に内側に変形し、内層２内の圧力が上昇して内容物が口部３から外部に注出されることになる。次に、胴部２の押圧を解除すると、外層１は弾性復元力により元の形に戻り始め、その結果、外層１と内層２の層間が負圧になり、吸気孔３ａを通って空気が層間に導入され、内層２は減容変形状態を保持したまま、外層２だけが元の形に復元する。そして、以後、上記動作が繰り返されることになる。なお、内容物は、図示されてはいないが、口部３に逆止弁を有するキャップ及びノズルまたはポンプを取り付けて外部に注出される。 The operation of the delamination container 100 will be briefly described. First, when the body part 4 is pressed from both sides with a finger, both the outer layer 1 and the inner layer 2 are deformed inward, the pressure in the inner layer 2 is increased, and the contents are increased. It will be poured out from the mouth 3 to the outside. Next, when the pressing of the body portion 2 is released, the outer layer 1 starts to return to its original shape due to elastic restoring force. As a result, the interlayer between the outer layer 1 and the inner layer 2 becomes negative pressure, and air passes through the intake holes 3a. Introduced between the layers, only the outer layer 2 is restored to its original shape while the inner layer 2 remains in a reduced volume deformation state. Thereafter, the above operation is repeated. Although not shown, the contents are poured out by attaching a cap and nozzle or pump having a check valve to the mouth 3.
また、詳細については図２を参照しながら後述するが、胴部４の側壁の片側上下２箇所においてツマミ部としての挟持部７がそれぞれ形成されている。特に、挟持部７の中間部位に対して、後述のスライドピンによって水平方向両側から圧接して、外層１および内層２も密着一体化し両層が一体化し、更に内層２同士が水平方向両側から完全に押し潰され密着一体化した状態にある圧着部７ａが形成されている。この圧着部７ａによって、内層２が内側に潰れ減容変形する際、内層２の潰れ減容変形の方向性を好適に規制し、内層２同士が密着して内容物の注出路が狭まることを好適に防止する。 Although details will be described later with reference to FIG. 2, sandwiching portions 7 as knob portions are respectively formed at two locations on one side of the side wall of the body portion 4. In particular, the intermediate portion of the sandwiching portion 7 is pressed from both sides in the horizontal direction by a slide pin, which will be described later, the outer layer 1 and the inner layer 2 are also integrated and integrated, and the inner layers 2 are completely integrated from both sides in the horizontal direction. The crimping portion 7a is formed in a state of being crushed and closely integrated. When the inner layer 2 is crushed inward and deformed by the crimping portion 7a, the direction of the crushed and deformed deformation of the inner layer 2 is suitably restricted, and the inner layer 2 is in close contact with each other to narrow the content extraction path. Preferably prevent.
図２に示すように、胴部４の側面の等分縦断面に関して対称な位置には、胴部４の側面の一部が凹んだ陥没部６,６がそれぞれ形成され、陥没部６,６の間には挟持部７が形成されている。更に、挟持部７の中間部位は水平方向両側から扁平に圧接され凹んで、その結果、外層１と内層２が互いに押し潰され密着一体化すると共に、内層２同士も完全に押し潰され密着一体化した圧着部７ａがそれぞれ形成されている。 As shown in FIG. 2, recessed portions 6, 6 in which a part of the side surface of the body portion 4 is recessed are formed at positions symmetrical with respect to the equally divided longitudinal section of the side surface of the body portion 4. A sandwiching part 7 is formed between them. Further, the intermediate portion of the sandwiching portion 7 is flatly pressed from both sides in the horizontal direction and is recessed, so that the outer layer 1 and the inner layer 2 are crushed and closely integrated with each other, and the inner layers 2 are also completely crushed and closely integrated. Each crimped portion 7a is formed.
図３は、本発明の積層剥離容器１００を成形するブロー成形方法を示す説明図である。
先ず、図３（ａ）に示すように、胴部金型１０を閉じてパリソンＰを金型の内側にセットする。また、積層剥離容器１００の挟持部７に対応する挟持部金型１０ｂを両側から圧接するスライドピン１１,１１が胴部金型１０の内部を貫通して伸縮する形態で配設されている。従って、スライドピン１１の先端部は、挟持部金型１０ｂの内壁面の一部を成している。スライドピン１１,１１が作動すると、各ピン先端部が前方に変位して、挟持部７を両側から圧接するように構成されている。
FIG. 3 is an explanatory view showing a blow molding method for molding the delamination container 100 of the present invention.
First, as shown in FIG. 3A, the body mold 10 is closed and the parison P is set inside the mold. Further, slide pins 11, 11 that press-contact the clamping part mold 10 b corresponding to the clamping part 7 of the delamination container 100 from both sides are arranged in a form that extends through the inside of the trunk part mold 10. Therefore, the tip of the slide pin 11 forms a part of the inner wall surface of the clamping mold 10b. When the slide pins 11, 11 are actuated, the tip portions of the pins are displaced forward to press the clamping portion 7 from both sides.
次いで、図３（ｂ）及び同（ｃ）に示すように、パリソンＰの内部に高圧エアを吹き込んでブローさせ、パリソンＰに係る溶融樹脂を胴部金型１０の内周面に押し付けブロー成形する。 Next, as shown in FIGS. 3B and 3C, high pressure air is blown into the inside of the parison P and blown, and the molten resin according to the parison P is pressed against the inner peripheral surface of the body mold 10 and blow molded. To do.
次いで、スライドピン１１,１１を作動させ、各ピン先端部が前方に変位して、挟持部７を両側から圧接する。図４に示すように、圧着部７ａにおいては外層１と内層２が互いに押し潰され密着一体化していると共に、内層２同士も完全に押し潰され密着一体化した状態にある。 Next, the slide pins 11 and 11 are actuated, the tip portions of the pins are displaced forward, and the clamping portion 7 is pressed from both sides. As shown in FIG. 4, in the crimping part 7a, the outer layer 1 and the inner layer 2 are crushed and closely integrated with each other, and the inner layers 2 are also completely crushed and closely integrated.
図５は、本発明のブロー成形容器の他の実施例である積層剥離容器２００を示す要部説明図である。
図１の積層剥離容器１００との違いは、挟持部７が胴部４の両側上下４箇所に形成されている。
従って、図６に示されるように、接着層９に代わって、挟持部７の圧着部７ａが内層２の潰れ減容変形形態規制手段として機能している。
FIG. 5 is an explanatory view of a main part showing a laminate peeling container 200 which is another embodiment of the blow molded container of the present invention.
The difference from the delamination container 100 in FIG. 1 is that the sandwiching portions 7 are formed at four locations on the upper and lower sides of the body portion 4.
Therefore, as shown in FIG. 6, instead of the adhesive layer 9, the pressure-bonding portion 7 a of the sandwiching portion 7 functions as a crushing volume reducing deformation regulating means for the inner layer 2.
図７は、本発明のブロー成形容器の他の実施例である積層剥離容器３００を示す要部説明図である。
図１の積層剥離容器１００との違いは、圧着部７ａが胴部４の片側全高さ範囲に亘って連続して形成されている。
FIG. 7 is an explanatory view of a main part showing a laminate peeling container 300 which is another embodiment of the blow molded container of the present invention.
The difference from the delamination container 100 in FIG. 1 is that the crimping part 7 a is continuously formed over the entire height range on one side of the body part 4.
この図７に示した実施例にあっては、胴部４の略全高さ範囲に亘って一対の陥没部６,６を設けたので、内層２に対する挟持部７の規制力は、胴部４の略全高さ範囲に亘って均等に作用することになり、内容物の注出路を安定して確保することが出来る。 In the embodiment shown in FIG. 7, since the pair of depressions 6 and 6 are provided over substantially the entire height range of the body portion 4, the restricting force of the sandwiching portion 7 with respect to the inner layer 2 is limited to the body portion 4. It acts evenly over substantially the entire height range, and it is possible to stably secure the content extraction passage.
図８は、本発明のブロー成形容器の他の実施例である積層剥離容器４００を示す要部説明図である。
図１の積層剥離容器１００との違いは、圧着部７ａが胴部４の両側の略全高さ範囲に亘って連続して形成されている。
この図８に示した実施例にあっては、図７の積層剥離容器３００と比べ、内層２に対する挟持部７の規制力が、胴部４の略全高さ範囲に亘ってより均等に作用することになり、内容物の注出路をより安定して確保することになる。また、上記、図５の積層剥離容器２００と同様に、接着層９が不要となる。
FIG. 8 is a main part explanatory view showing a lamination peeling container 400 which is another embodiment of the blow molded container of the present invention.
The difference from the delamination container 100 in FIG. 1 is that the crimping part 7 a is continuously formed over substantially the entire height range on both sides of the body part 4.
In the embodiment shown in FIG. 8, the regulating force of the sandwiching portion 7 with respect to the inner layer 2 acts more evenly over substantially the entire height range of the inner layer 2 as compared to the delamination container 300 of FIG. 7. As a result, it is possible to secure a more stable pouring path for the contents. Moreover, the adhesive layer 9 becomes unnecessary similarly to the above-described delamination container 200 of FIG.
図９は、本発明の積層剥離容器１００,３００に係る内層２の潰れ減容変形形態を示す説明図である。
この図は、挟持部７の圧着部７ａの内層２に対する潰れ減容変形規制力と接着層９による潰れ減容変形規制力が作用した時の、内層２の潰れ減容変形形態を示している。内層２同士が接着することなく、内層２が、挟持部７および接着層９を含む等分縦断面に向かって規則的に減容変形し、内容物の注出路が安定して確保されていることが分かる。
FIG. 9 is an explanatory view showing a collapse volume reduction deformation mode of the inner layer 2 according to the delamination containers 100 and 300 of the present invention.
This figure shows a collapse / volume reduction deformation mode of the inner layer 2 when the collapse / volume reduction deformation restricting force for the inner layer 2 of the crimping portion 7a of the sandwiching portion 7 and the collapse / volume reduction deformation restricting force by the adhesive layer 9 act. . Without the inner layers 2 being bonded to each other, the inner layer 2 is regularly volume-reduced and deformed toward the longitudinal section including the sandwiching portion 7 and the adhesive layer 9, and the content extraction path is stably secured. I understand that.
図１０は、本発明の積層剥離容器２００,４００に係る内層２の潰れ減容変形形態を示す説明図である。
この図は、挟持部７の圧着部７ａの内層２に対する潰れ減容変形規制力が胴部４の両側で作用した時の、内層２の潰れ減容変形形態を示している。内層２同士が接着することなく、内層２が、両側の挟持部７，７を含む等分縦断面に向かって規則的に減容変形し、内容物の注出路が安定して確保されていることが分かる。
FIG. 10 is an explanatory view showing a collapse volume reduction deformation form of the inner layer 2 according to the laminated peeling containers 200 and 400 of the present invention.
This figure shows a collapse / volume reduction deformation form of the inner layer 2 when the collapse / volume reduction deformation restricting force for the inner layer 2 of the crimping portion 7 a of the sandwiching portion 7 acts on both sides of the body portion 4. Without the inner layers 2 being bonded to each other, the inner layer 2 is regularly volume-reduced and deformed toward the longitudinal cross section including the sandwiching portions 7 and 7 on both sides, and the content extraction passage is stably secured. I understand that.
以上の通り、本発明の積層剥離容器１００,２００,３００,４００によれば、内層２の潰れ減容変形規制手段としての挟持部７がその中間部位において水平方向両側から圧接され、外層１と内層２ならびに内層２同士が水平方向両側から完全に押し潰され密着一体化した状態にある。また、この内層２同士の密着一体化状態は外層１によって強固に安定して保持さている。更に、この圧着部７ａは構造的に安定している。その結果、この圧着部７ａによって強い安定した張力が内層の面内に常時負荷されることになり、この圧着部７ａは安定して内層２の潰れ減容変形の方向性を規制すると共に、その規制力も従来の挟持部のみの構成に比べ強化されることになる。従って、この圧着部７ａが形成される胴部の高さ範囲の位置、長さ、および両側あるいは片側を適宜調整することにより、使用全期間を通して、安定して内層２の潰れ減容変形の方向性を規制し、内容物がスムーズに注出するための注出路を好適に確保するように作用し、ユーザは使用最後までスムーズなスクイズ感で内容物を注出することが出来るようになる。
また、本発明のブロー成形方法によれば、ブロー成形時において容易に安定して容器の挟持部７を水平方向両側から圧着することができ上記積層剥離容器１００,２００,３００,４００を好適に製造することが可能となる。
As described above, according to the delamination container 100, 200, 300, 400 of the present invention, the sandwiching portion 7 serving as the crushing volume reduction deformation regulating means of the inner layer 2 is pressed from both sides in the horizontal direction at the intermediate portion, The inner layer 2 and the inner layers 2 are completely crushed from both sides in the horizontal direction and are in close contact with each other. Further, the tightly integrated state of the inner layers 2 is firmly and stably held by the outer layer 1. Further, the crimping portion 7a is structurally stable. As a result, a strong and stable tension is always applied to the surface of the inner layer by the pressure-bonding portion 7a, and the pressure-bonding portion 7a stably regulates the direction of collapse and volume reduction deformation of the inner layer 2, and The restricting force is also strengthened as compared with the conventional configuration having only the clamping portion. Accordingly, by appropriately adjusting the position, length, and both sides or one side of the height range of the body portion where the crimping portion 7a is formed, the direction of the deformation and deformation of the inner layer 2 stably throughout the entire period of use. This restricts the property and acts to suitably secure a pouring path for smoothly pouring out the contents, so that the user can pour out the contents with a smooth squeeze feeling until the end of use.
Further, according to the blow molding method of the present invention, the sandwiched container 100, 200, 300, 400 can be suitably bonded to the container holding part 7 from the both sides in the horizontal direction easily and stably during blow molding. It can be manufactured.
本発明のブロー成形容器は、積層剥離容器に対し好適に適用される。 The blow molded container of the present invention is suitably applied to a delamination container.
１ 外層
２ 内層
３ 口部
３ａ 吸気孔
４ 胴部
５ 底部
６ 陥没部
７ 挟持部
７ａ 圧着部
９ 接着層
１０ 胴部金型
１０ａ 張り出し部
１０ｂ 挟持部金型
１１ スライドピン
１００ 積層剥離容器
DESCRIPTION OF SYMBOLS 1 Outer layer 2 Inner layer 3 Mouth part 3a Intake hole 4 Trunk part 5 Bottom part 6 Depressed part 7 Clamping part 7a Crimping part 9 Adhesive layer 10 Drum part 10a Overhang part 10b Clamping part mold 11 Slide pin 100 Lamination peeling container
Claims (4)
前記挟持部（７）の中間部位において、前記外層（１）と前記内層（２）が水平方向両側から圧接されて剥離不能に密着一体化された圧着部（７ａ）が形成されていることを特徴とするブロー成形容器。 A bottomed cylindrical body (4) comprising an outer layer (1) that forms an outer shell, and an inner layer (2) that can be peeled from the outer layer (1) and is crushed and reduced in volume; A bottle-shaped blow-molded container provided with a vertical protrusion-shaped sandwiching portion (7) that sandwiches and holds a part of the inner layer (2) with a part of the outer layer (1),
In the intermediate part of the clamping part (7), the outer layer (1) and the inner layer (2) are press-contacted from both sides in the horizontal direction to form a pressure-bonding part (7a) in which they are tightly integrated so as not to be peeled off. A blow molded container.
前記パリソン（Ｐ）をブローさせた後に、前記挟持部金型（１０ｂ）の突出方向の中間部位において、外層（１）と内層（２）を水平方向両側から圧接して剥離不能に密着一体化させるスライドピン（１１,１１）を備えることを特徴とするブロー成形方法。 The parison (P) in which the outer layer (1) and the inner layer (2) are laminated is bulged symmetrically with respect to the longitudinal section of the barrel mold (10), and a part of the barrel mold side wall projects inward. A blow molding method of molding a container by blowing with a blow molding die including a portion (10a) and a sandwiching die (10b) sandwiched between the overhanging portions (10a),
After the parison (P) is blown, the outer layer (1) and the inner layer (2) are pressed from both sides in the horizontal direction at the intermediate portion in the protruding direction of the sandwiching die (10b) so that they cannot be peeled and integrated. A blow molding method comprising a slide pin (11, 11) to be moved.
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| JP7197117B2 (en) | 2018-10-26 | 2022-12-27 | 大成化工株式会社 | Delaminated bottle and manufacturing method thereof |
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