JP2007296720A - Blocking preventing preform - Google Patents

Blocking preventing preform Download PDF

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Publication number
JP2007296720A
JP2007296720A JP2006125961A JP2006125961A JP2007296720A JP 2007296720 A JP2007296720 A JP 2007296720A JP 2006125961 A JP2006125961 A JP 2006125961A JP 2006125961 A JP2006125961 A JP 2006125961A JP 2007296720 A JP2007296720 A JP 2007296720A
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preform
mouth
protrusion
section
container
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JP4771313B2 (en
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Takanori Suzuki
孝典 鈴木
Takao Iizuka
高雄 飯塚
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected

Abstract

<P>PROBLEM TO BE SOLVED: To provide a preform for forming of a resin container which can prevent blocking from occurring, and can easily be separated even when being stacked in the preform for which the outer diameter of the body section is formed to be smaller than the inner diameter of the mouth section. <P>SOLUTION: For the preform for the formation of a resin container, the outer diameter of the body section is formed to be smaller than the inner diameter of the mouth section. In the preform, a protuberance which comes into contact with the mouth section internal surface of another preform when the preform is placed in the mouth section of the other preform is formed on the bottom section. Thus, the top section of the protuberance comes into contact with the mouth section internal surface, and a space is formed to the other preform, and the mouth section internal surface and the bottom section are held while being prevented from closely joined, and the blocking of the preforms can be prevented from occurring. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、樹脂製容器を形成するためのプリフォームに関する。   The present invention relates to a preform for forming a resin container.

通常ＰＥＴボトルなどの樹脂製容器は、予めプリフォームを形成し、そのプリフォームを成形機で二軸延伸ブローして形成されている。プリフォームは、口部と有底の胴部からなる円筒体で、従来多くのプリフォームは、口部と胴部をほぼ同一の太さに形成してある。   Usually, a resin container such as a PET bottle is formed by forming a preform in advance and biaxially stretching and blowing the preform with a molding machine. The preform is a cylindrical body composed of a mouth portion and a bottomed body portion, and many preforms conventionally have the mouth portion and the body portion formed in substantially the same thickness.

ところが近年、容器形状が多様化し、所望の形状にプリフォームを延伸形成するにあたり、予めプリフォーム自体を所定の形状に形成しておく必要性が生じてきている。   However, in recent years, the shape of containers has diversified, and in order to stretch and form a preform into a desired shape, it has become necessary to form the preform itself in a predetermined shape.

また皿状容器を形成するにあたり、胴部を円錐状にしたプリフォームを形成することがある。   In forming a dish-like container, a preform having a cone-shaped body may be formed.

特開２０００−２１１０１７号公報JP 2000-211017 A

しかしながら、プリフォームの胴部を口部の径より細く形成した場合には、図５に示すようにプリフォーム２２の口部２４内に他のプリフォーム２２の胴部２６が入ってスタッキングすることがある。更にプリフォーム２２の表面は平滑に形成してあるので、口部２４の内面と底部２８の外面がわずかな角度差で接して、互いに密着して離れなくなったり、あるいは底部２８が口部２４の開口部を密閉して空気が流入しなくなり、いわゆるブロッキング現象を起こしてプリフォーム２２が容易に引き抜けなくなる現象を発生させることがある。   However, when the preform body is formed thinner than the diameter of the mouth, the body 26 of another preform 22 is placed in the mouth 24 of the preform 22 and stacked as shown in FIG. There is. Further, since the surface of the preform 22 is formed smoothly, the inner surface of the mouth portion 24 and the outer surface of the bottom portion 28 are in contact with each other with a slight angle difference so that they do not come into close contact with each other. The opening may be sealed to prevent air from flowing in, which may cause a so-called blocking phenomenon that prevents the preform 22 from being easily pulled out.

プリフォームは、射出成形などにより同時に多数形成され、整列機などにおいて整列させて順次延伸機に搬送し、容器に延伸形成されている。そのため、プリフォームどうしがブロッキングしてしまうと、整列機における整列がなされず、延伸機での容器形成の障害となることがある。   A large number of preforms are formed at the same time by injection molding or the like, aligned by an aligner or the like, sequentially conveyed to a stretching machine, and stretched into a container. Therefore, if the preforms are blocked, alignment by the aligning machine is not performed, which may hinder container formation by the stretching machine.

本発明は、口部の内径より胴部の外径を細く形成したプリフォームにおいて、プリフォームのブロッキングを防止し、スタッキングしても容易に引き離すことができる樹脂容器形成用のプリフォームを提供することを目的とする。   The present invention provides a preform for forming a resin container that prevents the preform from being blocked and can be easily separated even after stacking in a preform in which the outer diameter of the body is narrower than the inner diameter of the mouth. For the purpose.

本発明は、上記課題を解決するため、次のようにプリフォームを構成した。   In order to solve the above-mentioned problems, the present invention is configured as follows.

胴部外径を口部内径より細く形成した、樹脂容器形成用のプリフォームにおいて、他のプリフォームの口部内に入った場合に、他のプリフォームの口部内面に接触する突起をプリフォームの底部に形成した。突起は、その頂部が口部内面に接触し、口部内面と底部が直接密着しないように設ける。   In a preform for forming a resin container, the outer diameter of the body part is narrower than the inner diameter of the mouth part. When the preform enters the mouth part of another preform, the preform that contacts the inner surface of the mouth part of the other preform is preformed. Formed at the bottom of the. The protrusions are provided such that the tops thereof are in contact with the inner surface of the mouth and the inner surfaces of the mouth and the bottom are not in direct contact.

突起は、例えば底部の湾曲中心を中心点とし、底部の最下点から上方に角度β（βは、口部内部の垂直からの傾斜角度αに対して、β＝９０−αの関係である。）の位置、すなわち角度βである円周に沿ったいずれかの位置に形成する。かかる位置に突起を形成すると、突起は他のプリフォームの内面に確実に接触する。   The protrusion has, for example, the center of curvature at the bottom as the center point and the angle β upward from the lowest point of the bottom (β is in a relationship of β = 90−α with respect to the inclination angle α from the vertical inside the mouth. .), That is, at any position along the circumference of the angle β. When the protrusion is formed at such a position, the protrusion reliably contacts the inner surface of another preform.

突起は、金型に加工を施し、かかるプリフォームの射出成形と同時に底部に形成する。形成された突起は、頂点で他のプリフォームの内面と接して他のプリフォームと底部との接触面積を小さくするとともに底部と他のプリフォームの内面の間に間隙を形成し、他のプリフォームの内部を外部に連通させる空気通路を形成させる。突起は、底部に少なくとも一つ設ければよい。尚、二箇所設置すれば、二箇所の突起と一箇所に面接触となりプリフォームの固着を十分に防止し、３箇所以上にほぼ均等に設置すれば、各突起の頂点のみで他のプリフォームの内面に接する点からより好ましい。   The protrusions are processed on the mold and formed on the bottom at the same time as injection molding of the preform. The formed protrusion is in contact with the inner surface of the other preform at the apex to reduce the contact area between the other preform and the bottom, and to form a gap between the bottom and the inner surface of the other preform. An air passage is formed to communicate the interior of the reform with the outside. At least one protrusion may be provided on the bottom. In addition, if it is installed in two places, it will be in surface contact with two protrusions and one place will be sufficient to prevent the preform from sticking, and if it is installed almost evenly in three or more places, only the top of each protrusion will be the other preform. It is more preferable from the point of contact with the inner surface.

突起は、胴部側壁で、同一径に形成された側壁の延長面より外方に、その先端が突出しない高さとする。また、容器底部に、下方に突出した脚部を複数形成する場合は、突起を容器外観から目立たない脚部の裏に設けるとか、脚部の間などに均等に配置されるようにすることが好ましい。   The protrusion is a body side wall and has a height at which the tip does not protrude outwardly from the extended surface of the side wall formed with the same diameter. In addition, when a plurality of downwardly projecting legs are formed on the bottom of the container, the protrusions may be provided on the back of the legs that are inconspicuous from the exterior of the container, or evenly arranged between the legs. preferable.

尚、突起は、点状に突出した突起に限らず、周方向に幅が広くても、あるいはプリフォームの長手方向に長く形成してもよい。   The protrusions are not limited to the protrusions projecting in the form of dots, and the protrusions may be wide in the circumferential direction or long in the longitudinal direction of the preform.

更に、底部に溝を設け、溝の間を突起として形成してもよい。更にプリフォームの内面であって、他のプリフォームが入って接する位置に突起や溝を設けてもよい。   Further, a groove may be provided at the bottom, and a protrusion between the grooves may be formed. Further, a projection or a groove may be provided on the inner surface of the preform at a position where another preform enters and contacts.

突起や溝はいずれも、プリフォームを延伸し容器に形成したときは自然に消滅する程度の大きさ、形状、あるいは底部の目立たない位置とする。また、底部と内面の双方に突起等を設けてもよい。   Both the protrusions and the grooves have a size, shape, or inconspicuous position at the bottom so that they naturally disappear when the preform is stretched and formed into a container. Moreover, you may provide a protrusion etc. in both a bottom part and an inner surface.

プリフォームの胴部が他のプリフォームの口部内に入っても、底部に設けられた突起が他のプリフォームの内面に点、あるいは狭い面積で接触し、かつ胴部とプリフォーム内面との間に間隙を形成するので、底部と他のプリフォームの口部内面とが固着されない。そのため、ブロッキングを防止し、スタッキングしたプリフォームを容易に抜き出すことができる。   Even if the body of the preform enters the mouth of another preform, the projection provided on the bottom contacts the inner surface of the other preform at a point or a small area, and the body and the inner surface of the preform Since a gap is formed between them, the bottom and the inner surface of the mouth of the other preform are not fixed. Therefore, blocking can be prevented and the stacked preform can be easily extracted.

プリフォームどうしが固着して抜き出しにくくなることがないので、プリフォームのブロッキングを考慮することなく、所望の形状にプリフォームを形成し、所望の形状の樹脂製容器を、従来と同様の装置を用いて円滑に製造できる。   Preforms do not stick to each other, making it difficult to remove them. Therefore, without considering the blocking of the preform, the preform is formed into a desired shape, and the resin container of the desired shape is replaced with a conventional device. And can be manufactured smoothly.

突起は、プリフォームと同時に形成されるので、コストを上昇させることはない。プリフォームを容器に延伸すると容器には突起の痕跡があまり残ることがないので、良好な容器を形成できる。万一容器に残る痕跡があっても、痕跡は容器の底部に位置することからあまり問題が生じない。   Since the protrusion is formed at the same time as the preform, the cost does not increase. When the preform is stretched into the container, no trace of protrusions remains in the container, so that a good container can be formed. Even if there is a trace remaining in the container, the trace is located at the bottom of the container, so there is not much problem.

本発明にかかるブロッキング防止プリフォームの一実施形態を図１に示す。   One embodiment of an antiblocking preform according to the present invention is shown in FIG.

プリフォーム２は、樹脂製で、口部４と、口部４に続く胴部６から形成してある。   The preform 2 is made of resin, and is formed from a mouth part 4 and a body part 6 following the mouth part 4.

口部４は、円筒状で、外周面に螺条８とネックリング１０が形成してある。口部４は、プリフォーム２を容器（図示せず。）に形成したときの容器口部となる部分である。   The mouth portion 4 has a cylindrical shape, and a thread 8 and a neck ring 10 are formed on the outer peripheral surface. The mouth part 4 is a part that becomes a container mouth part when the preform 2 is formed in a container (not shown).

胴部６は、口部４と同様円筒状で、底部１２が半球状に形成してある。胴部６は、ネックリング１０の下部から外径がなだらかに狭めてあり、その後外径がほぼ均一なストレート部７となり、底部１２に連続している。ストレート部７の外径ａは、口部４の内径ｂより細く形成してある。ストレート部７の外径ａと、口部４の内径ｂ、更にその間の勾配αなどの数値は、プリフォーム２で形成する容器（図示せず。）が有する要件に従って定められている。   The trunk | drum 6 is cylindrical like the opening | mouth part 4, and the bottom part 12 is formed in the hemispherical shape. The trunk portion 6 has an outer diameter that is gradually narrowed from the lower portion of the neck ring 10, and then becomes a straight portion 7 having a substantially uniform outer diameter and continues to the bottom portion 12. The outer diameter a of the straight portion 7 is formed thinner than the inner diameter b of the mouth portion 4. Numerical values such as the outer diameter a of the straight portion 7, the inner diameter b of the mouth portion 4, and the gradient α therebetween are determined according to the requirements of a container (not shown) formed of the preform 2.

底部１２の外周面には、図２にも示すように突起３が４箇所に設けてある。突起３は、プリフォーム２と一体に形成してあり、プリフォーム２が他のプリフォーム２の口部４に進入したとき、他のプリフォーム２の内面に当接する位置に形成してある。   On the outer peripheral surface of the bottom portion 12, as shown in FIG. The protrusion 3 is formed integrally with the preform 2, and is formed at a position where it comes into contact with the inner surface of the other preform 2 when the preform 2 enters the mouth 4 of the other preform 2.

具体的には、突起３は、図３に示すように底部１２の湾曲中心Ｐを中心点として、底部１２の最下点Ｑから上方に角度β、すなわち口部４の内面の傾斜角度α（鉛直線からの傾斜角）に対して、β＝９０−αの関係にある角度βに形成する。かかる角度βの同一円周上に突起３を形成すると、突起３は他のプリフォーム２の内面に確実に接触する
突起３は、突起３の頂点と他のプリフォーム２の内面が接触すると、底部１２と口部４の内面との間に若干の間隙を形成する高さを有している。また突起３は、ストレート部７の延長面より外方には突出しない高さである。 Specifically, as shown in FIG. 3, the protrusion 3 has an angle β upward from the lowest point Q of the bottom 12, that is, an inclination angle α ( Is formed at an angle β having a relationship of β = 90−α with respect to the inclination angle from the vertical line. When the protrusions 3 are formed on the same circumference of the angle β, the protrusions 3 are surely in contact with the inner surface of the other preform 2. When the protrusion 3 is in contact with the inner surface of the other preform 2, It has a height that forms a slight gap between the bottom 12 and the inner surface of the mouth 4. The protrusion 3 has a height that does not protrude outward from the extended surface of the straight portion 7.

突起３は、プリフォーム２を延伸して容器に形成した後、容器側壁、もしくは底壁と一体となって見えなくなるか、目立たない位置に配置される。   After the preform 2 is stretched and formed into a container, the protrusion 3 is disposed in a position where it is not visible or noticeable integrally with the container side wall or the bottom wall.

プリフォーム２をこのように構成したので、プリフォーム２の底部１２が他のプリフォーム２の口部４内に進入しても、突起３が口部４の内面と確実に当接し両者の接触面積を小さくするとともに両者間に間隙を形成し、底部１２を口部４に固着させない。したがって、プリフォーム２どうしのブロッキングが防止でき、整列機（図示せず。）などにおいてプリフォーム２を円滑に自動整列させて容器を形成できる。   Since the preform 2 is configured in this way, even if the bottom portion 12 of the preform 2 enters the mouth portion 4 of the other preform 2, the projection 3 reliably comes into contact with the inner surface of the mouth portion 4 so as to contact the both. The area is reduced and a gap is formed between the two so that the bottom 12 is not fixed to the mouth 4. Therefore, blocking between the preforms 2 can be prevented, and a container can be formed by smoothly and automatically aligning the preforms 2 with an aligner (not shown).

他の例を図４に示す
これは、突起３に代えて、底部１２の中心から放射状に沿って突条５を設けた例である。このように突条５を形成しても、プリフォーム２が他のプリフォーム２内に進入した場合に、プリフォーム２どうしの固着を防止し、抜けなくなることを防ぐことができる。 Another example is shown in FIG. 4. This is an example in which the protrusions 5 are provided along the radial direction from the center of the bottom 12 instead of the protrusions 3. Even if the protrusions 5 are formed in this way, when the preform 2 enters the other preform 2, it is possible to prevent the preforms 2 from sticking to each other and prevent them from coming off.

次に、突起３の位置の計算例について説明する。   Next, an example of calculating the position of the protrusion 3 will be described.

突起３と底部１２の最下点Ｑとの距離ｄは、次の式で求められる。   A distance d between the protrusion 3 and the lowest point Q of the bottom portion 12 is obtained by the following equation.

ｄ＝Ｒ−Ｒｃｏｓβ＝Ｒ（１−ｃｏｓβ）＝Ｒ（１−ｃｏｓ（９０−α））＝Ｒ（１−ｓｉｎα）
尚、Ｒは底部１２の曲率半径、αはプリフォーム２の口部４の内面角度である。 d = R-Rcosβ = R (1-cosβ) = R (1-cos (90-α)) = R (1-sinα)
R is the radius of curvature of the bottom 12 and α is the inner surface angle of the mouth 4 of the preform 2.

したがって、例えば底部１２の曲率半径Ｒが１０ｍｍ、プリフォーム２の内面の傾斜角度αが２０度であると、βは７０度であり、距離ｄは、ｄ＝１０（１−ｓｉｎ２０）＝１０（１−０．３４）＝６．５８ｍｍとなる。   Therefore, for example, if the curvature radius R of the bottom 12 is 10 mm and the inclination angle α of the inner surface of the preform 2 is 20 degrees, β is 70 degrees, and the distance d is d = 10 (1-sin20) = 10 ( 1−0.34) = 6.58 mm.

かかる位置に突起３を形成すれば、プリフォーム２が他のプリフォーム２の口部４に入っても、突起３が他のプリフォーム２の内面に確実に接触するので、プリフォーム２どうしのブロッキングを生じさせない。   If the projection 3 is formed at such a position, even if the preform 2 enters the mouth 4 of the other preform 2, the projection 3 reliably contacts the inner surface of the other preform 2. Does not cause blocking.

本発明にかかるブロッキング防止プリフォームを示す断面図である。It is sectional drawing which shows the antiblocking preform concerning this invention. 図１のプリフォームの底面を示す図である。It is a figure which shows the bottom face of the preform of FIG. 他のプリフォームを示す図である。It is a figure which shows another preform. 突起位置を示す図である。It is a figure which shows a protrusion position. 従来のプリフォームを示す図である。It is a figure which shows the conventional preform.

符号の説明Explanation of symbols

２ プリフォーム
３ 突起
４ 口部
５ 突条
６ 胴部
７ ストレート部
８ 螺条
１０ ネックリング
１２ 底部 2 Preform 3 Protrusion 4 Mouth 5 Projection 6 Trunk 7 Straight 7 Screw 10 Neck Ring 12 Bottom

Claims (3)

樹脂製容器を形成するためのプリフォームであり、
該プリフォームは、口部と該口部に連続した有底の円筒状胴部を具え、
該胴部は、底部から所定の位置まで、前記口部の内径より細い外径であり、前記底部に、該プリフォームと同形の他のプリフォームの口部内部に前記胴部が進入した際、該他のプリフォームの内面奥部に接する突起を具えたことを特徴とするブロッキング防止プリフォーム。 It is a preform for forming a resin container,
The preform comprises a mouth and a bottomed cylindrical body continuous to the mouth,
The trunk portion has an outer diameter that is narrower than the inner diameter of the mouth portion from the bottom portion to a predetermined position, and the trunk portion enters the inside of the mouth portion of another preform having the same shape as the preform into the bottom portion. An antiblocking preform comprising a protrusion in contact with the inner surface of the other preform. 突起は、底部の湾曲中心を中心に、該底部の最下点から上方に角度β(β＝９０−α)の位置に形成した(αは、口部内部の鉛直に対する傾斜角度)請求項１に記載のブロッキング防止プリフォーム。 The protrusion is formed at a position of an angle β (β = 90−α) from the lowest point of the bottom centered on the center of curvature of the bottom (α is an inclination angle with respect to the vertical inside the mouth). Anti-blocking preform as described in 1. 口部は、該口部外周にキャップが螺合する雄ねじ部と、該雄ねじ部の下部に外方向に突出したネックリングを具え、胴部は、該ネックリングの下部から縮径して、前記口部内径より細く形成した請求項１または２に記載のブロッキング防止プリフォーム。 The mouth portion includes a male screw portion in which a cap is screwed to the outer periphery of the mouth portion, and a neck ring protruding outward from a lower portion of the male screw portion, and the body portion is reduced in diameter from the lower portion of the neck ring, The anti-blocking preform according to claim 1 or 2, wherein the preform is thinner than the inner diameter of the mouth.
JP2006125961A 2006-04-28 2006-04-28 Anti-blocking preform Active JP4771313B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014200976A (en) * 2013-04-03 2014-10-27 大日本印刷株式会社 Preform and plastic bottle
WO2016084301A1 (en) * 2014-11-28 2016-06-02 株式会社吉野工業所 Preform for biaxial stretching blow molding, container, process for producing preform for biaxial stretching blow molding, and process for producing container
JP2017030215A (en) * 2015-07-31 2017-02-09 株式会社吉野工業所 Preform for biaxial stretching blow molding and container
WO2017098488A3 (en) * 2015-11-10 2017-09-08 The Coca-Cola Company Resin bottle and method for making the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0680134A (en) * 1992-08-31 1994-03-22 Snow Brand Milk Prod Co Ltd Blocking prevention method for container with projection provided to its side, and container made up by such method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0680134A (en) * 1992-08-31 1994-03-22 Snow Brand Milk Prod Co Ltd Blocking prevention method for container with projection provided to its side, and container made up by such method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014200976A (en) * 2013-04-03 2014-10-27 大日本印刷株式会社 Preform and plastic bottle
WO2016084301A1 (en) * 2014-11-28 2016-06-02 株式会社吉野工業所 Preform for biaxial stretching blow molding, container, process for producing preform for biaxial stretching blow molding, and process for producing container
CN107000297A (en) * 2014-11-28 2017-08-01 株式会社吉野工业所 The manufacture method and the manufacture method of container of the preform and container of biaxial stretch blow molding and the preform of biaxial stretch blow molding
JP2017030215A (en) * 2015-07-31 2017-02-09 株式会社吉野工業所 Preform for biaxial stretching blow molding and container
WO2017098488A3 (en) * 2015-11-10 2017-09-08 The Coca-Cola Company Resin bottle and method for making the same
US11383420B2 (en) 2015-11-10 2022-07-12 The Coca-Cola Company Resin bottle and method for making the same

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