JP2016193618A - Resin bottle preform - Google Patents

Resin bottle preform Download PDF

Info

Publication number
JP2016193618A
JP2016193618A JP2016164773A JP2016164773A JP2016193618A JP 2016193618 A JP2016193618 A JP 2016193618A JP 2016164773 A JP2016164773 A JP 2016164773A JP 2016164773 A JP2016164773 A JP 2016164773A JP 2016193618 A JP2016193618 A JP 2016193618A
Authority
JP
Japan
Prior art keywords
preform
bent portion
central axis
thickness
closed end
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.)
Granted
Application number
JP2016164773A
Other languages
Japanese (ja)
Other versions
JP6340047B2 (en
Inventor
則次 岡本
Noritsugu Okamoto
則次 岡本
昌弘 吉田
Masahiro Yoshida
昌弘 吉田
建之 松岡
Takeyuki Matsuoka
建之 松岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Coca Cola Co
Original Assignee
Toppan Printing Co Ltd
Coca Cola Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd, Coca Cola Co filed Critical Toppan Printing Co Ltd
Priority to JP2016164773A priority Critical patent/JP6340047B2/en
Publication of JP2016193618A publication Critical patent/JP2016193618A/en
Application granted granted Critical
Publication of JP6340047B2 publication Critical patent/JP6340047B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To provide a resin bottle preform capable of producing a light-weight and thin resin bottle with high yield.SOLUTION: There is provided a resin molding bottle preform 1 comprising an open end 8 and a closed end 9, the resin molding bottle preform comprises: a neck part 2 for forming the open end 8; a tubular trunk part 3 connected to the neck part 2; a bottom part 4 for forming the closed end 9 and formed into an almost conical shape in which outer diameter becomes narrower as going toward the closed end 9; and a bent part 5 for connecting the trunk part 3 and the bottom part 4. Thickness of the bent part 5 in a direction orthogonal to a central axis AX of the trunk part 3 is almost equal. An apex which is the farthest point from a straight line connecting both ends of a curve which forms an outer surface of the bent part 5, and an apex of a curve which forms an inner surface of the bent part 5, are not arranged on a same straight line orthogonal to the central axis AX of the trunk part 3, in a cross section.SELECTED DRAWING: Figure 1

Description

本発明は、樹脂ボトルをブロー成型により製造するために用いられる樹脂ボトル用プリフォームに関する。   The present invention relates to a preform for a resin bottle used for producing a resin bottle by blow molding.

飲料や調味料等の液体用の包装容器として、ポリエチレンテレフタレート（ＰＥＴ）等の樹脂材料で成型された樹脂ボトルが広く利用されている。樹脂ボトルの製造方法として、射出成型によって樹脂製のプリフォームを成型し、このプリフォームをブロー成型によって中空のボトル状に成型する手法が一般に行われている。   Resin bottles molded from resin materials such as polyethylene terephthalate (PET) are widely used as packaging containers for liquids such as beverages and seasonings. As a method for producing a resin bottle, a method is generally used in which a resin preform is molded by injection molding, and this preform is molded into a hollow bottle by blow molding.

図２は、従来の樹脂ボトル用プリフォームの縦断面図である。図２は、プリフォーム９１の中心軸ＡＸ’を含む平面を切断面とする断面を表す。   FIG. 2 is a longitudinal sectional view of a conventional preform for a resin bottle. FIG. 2 shows a cross section in which a plane including the central axis AX ′ of the preform 91 is a cut surface.

プリフォーム９１は、ネック部９２と、ネック部９２に接続される胴部９３と、胴部９３に接続される底部９４とを有する。ネック部９２は、プリフォーム９１の開放端を構成しており、外周面にはキャップを螺合させるためのネジ山が設けられている。底部９４は、プリフォーム９１の閉鎖端を構成しており、ほぼ半球状の外観形状を有する。胴部９２は、ネック部９２と底部９４とを接続する管状の部分である。   The preform 91 has a neck portion 92, a trunk portion 93 connected to the neck portion 92, and a bottom portion 94 connected to the trunk portion 93. The neck portion 92 constitutes an open end of the preform 91, and a screw thread for screwing the cap is provided on the outer peripheral surface. The bottom 94 constitutes the closed end of the preform 91 and has a substantially hemispherical appearance. The trunk portion 92 is a tubular portion that connects the neck portion 92 and the bottom portion 94.

樹脂ボトルの成型時には、まず、胴部９３及び底部９４を外側からヒーターで加熱して樹脂材料を軟化させた後、加熱したプリフォーム９１をボトル成型用の金型に挿入し、ネック部９２からプリフォーム９１の内部へと空気を吹き込んで胴部９３及び底部９４を膨らませることによってボトルを成型する。   When molding the resin bottle, first, the body portion 93 and the bottom portion 94 are heated from the outside with a heater to soften the resin material, and then the heated preform 91 is inserted into a bottle molding die. A bottle is molded by blowing air into the preform 91 to inflate the body portion 93 and the bottom portion 94.

特開２００２−２４０１３６号公報JP 2002-240136 A

近年、樹脂ボトルの軽量化及び薄肉化に対する要請が高まっており、図２に示した従来のプリフォームよりも樹脂量を低減したプリフォームが求められている。ただし、従来よりも薄肉化したペットボトルの成型条件はよりシビアであり、成形機の成型条件が安定するまでに要する時間が従来よりも長くなったり、成型機を一旦停止した後、再スタートした際の不良品率が高くなったりして、歩留まりの低下に繋がる。特に、プリフォームの加熱後に、温度の不均一な部分があると、ブロー成型後に、当該温度の不均一な部分が白化する場合があり、品質面で好ましくない。したがって、プリフォームの樹脂量を単に低減するだけでは、軽量化及び薄肉化した樹脂ボトルを安定して製造することは困難である。   In recent years, there has been an increasing demand for weight reduction and thinning of resin bottles, and there is a demand for a preform with a reduced amount of resin compared to the conventional preform shown in FIG. However, the molding conditions for PET bottles that are thinner than before are more severe, and the time required for the molding conditions of the molding machine to become stable is longer than before, or the molding machine is stopped and then restarted. The defective product rate at the time increases, leading to a decrease in yield. In particular, if there is a non-uniform temperature part after heating the preform, the non-uniform temperature part may be whitened after blow molding, which is not preferable in terms of quality. Therefore, it is difficult to stably manufacture a resin bottle that is reduced in weight and thickness by simply reducing the amount of resin in the preform.

それ故に、本発明は、軽量かつ薄肉の樹脂ボトルを歩留まり良く製造することができる樹脂ボトル用プリフォームを提供することを目的とする。   Therefore, an object of the present invention is to provide a preform for a resin bottle capable of producing a lightweight and thin resin bottle with a high yield.

開放端及び閉鎖端を有する樹脂成型ボトル用プリフォームであって、開放端を構成するネック部と、ネック部に接続される管状の胴部と、閉鎖端を構成し、閉鎖端に向かうにつれて外径が狭まる略円錐形状を有する底部と、胴部と底部とを接続する屈曲部とを備える。胴部の中心軸に対して直交する方向における屈曲部の厚みが略一定である。断面において、屈曲部の外面を構成する曲線の両端を結ぶ直線から最も遠い点である頂点と、屈曲部の内面を構成する曲線の頂点とが、胴部の中心軸に対して直交する同一直線上に配置されない。   A preform for a resin-molded bottle having an open end and a closed end, comprising a neck portion constituting the open end, a tubular body connected to the neck portion, a closed end, and an outer side toward the closed end A bottom portion having a substantially conical shape with a reduced diameter, and a bent portion connecting the body portion and the bottom portion. The thickness of the bent part in the direction orthogonal to the central axis of the body part is substantially constant. In the cross section, the vertex that is the farthest from the straight line connecting both ends of the curve that forms the outer surface of the bent portion and the vertex of the curve that forms the inner surface of the bent portion are the same straight line that is orthogonal to the central axis of the trunk portion. It is not placed on the line.

本発明によれば、底部を略円錐形とすることによって、半球状の底部を有するプリフォームと比べて樹脂量を低減することができるので、軽量かつ薄肉の樹脂ボトルを実現できる。また、胴部の中心軸と直交する方向における屈曲部の厚みを略一定とすることで、屈曲部の各部の熱吸収を均一化することができるので、樹脂ボトルのうち屈曲部に対応する箇所の白化を抑制し、歩留まりを向上させることが可能となる。   According to the present invention, since the bottom portion has a substantially conical shape, the amount of resin can be reduced as compared with a preform having a hemispherical bottom portion, and thus a lightweight and thin resin bottle can be realized. Also, by making the thickness of the bent portion in the direction orthogonal to the central axis of the barrel portion substantially constant, the heat absorption of each portion of the bent portion can be made uniform, so the location corresponding to the bent portion of the resin bottle It is possible to suppress the whitening of the resin and improve the yield.

実施形態に係る樹脂ボトル用プリフォームの縦断面図Vertical sectional view of a preform for a resin bottle according to an embodiment 従来の樹脂ボトル用プリフォームの縦断面図Longitudinal section of a conventional preform for resin bottles

図１は、実施形態に係る樹脂ボトル用プリフォームの縦断面図である。尚、図１は、プリフォーム１の中心軸ＡＸを含む平面を切断面とする断面を表す。   FIG. 1 is a longitudinal sectional view of a preform for a resin bottle according to an embodiment. FIG. 1 shows a cross section in which a plane including the central axis AX of the preform 1 is a cut surface.

プリフォーム１は、開放端８を構成するネック部２と、ネック部１に接続される胴部３と、閉鎖端９を構成する底部４と、胴部３と底部４とを接続する屈曲部５とを備える。尚、プリフォーム１の中心軸ＡＸは、ネック部２、胴部３、底部４及び屈曲部５のそれぞれの中心軸と一致している。   The preform 1 includes a neck portion 2 constituting an open end 8, a body portion 3 connected to the neck portion 1, a bottom portion 4 constituting a closed end 9, and a bent portion connecting the body portion 3 and the bottom portion 4. 5. The center axis AX of the preform 1 coincides with the center axis of each of the neck portion 2, the body portion 3, the bottom portion 4, and the bent portion 5.

ネック部２の外面には、キャップを螺合させるためのネジ山７が設けられている。   A thread 7 for screwing the cap is provided on the outer surface of the neck portion 2.

胴部３は、ネック部２に接続される管状の部分である。胴部３の内面は、プリフォーム１の成型時に金型の抜き取りを容易に行えるように、僅かな順テーパー状に形成されている。   The trunk portion 3 is a tubular portion connected to the neck portion 2. The inner surface of the body portion 3 is formed in a slight forward taper shape so that the mold can be easily extracted when the preform 1 is molded.

底部４の外面は、閉鎖端９に向かうにつれて外径が狭まる略円錐形状に形成されている。また、底部４の内面もまた、開放端９に向かうにつれて内径が狭まるように形成されている。   The outer surface of the bottom part 4 is formed in a substantially conical shape whose outer diameter is narrowed toward the closed end 9. Further, the inner surface of the bottom portion 4 is also formed so that the inner diameter becomes narrower toward the open end 9.

屈曲部５は、胴部３と底部４とを接続する部分である。屈曲部５の外面は、閉鎖端９に向かうにつれて外径が狭まる曲面であり、屈曲部５の内面は、閉鎖端９に向かうにつれて内径が狭まる曲面である。本実施形態では、図１の断面において屈曲部５の外面及び内面を構成する曲線が円弧状となるように、屈曲部５の形状が設計されている。   The bent portion 5 is a portion that connects the body portion 3 and the bottom portion 4. The outer surface of the bent portion 5 is a curved surface whose outer diameter decreases toward the closed end 9, and the inner surface of the bent portion 5 is a curved surface whose inner diameter decreases toward the closed end 9. In the present embodiment, the shape of the bent portion 5 is designed so that the curves constituting the outer surface and the inner surface of the bent portion 5 in the cross section of FIG.

中心軸ＡＸに対して直交する方向（すなわち、半径方向）における屈曲部５の厚みは、屈曲部５と胴部３との境界から、屈曲部５と底部４との境界にまでの範囲で、略一定となるように設計されている。図１では、例として、屈曲部５と胴部３との境界における屈曲部５の厚みＴ１と、屈曲部５と底部４との境界における屈曲部５の厚みＴ２と、屈曲部５の中間部における厚みＴｍとを図示しているが、Ｔ１、Ｔ２及びＴｍが略同じとなっている。   The thickness of the bent portion 5 in the direction orthogonal to the central axis AX (that is, the radial direction) ranges from the boundary between the bent portion 5 and the trunk portion 3 to the boundary between the bent portion 5 and the bottom portion 4. It is designed to be substantially constant. In FIG. 1, as an example, the thickness T1 of the bent portion 5 at the boundary between the bent portion 5 and the body portion 3, the thickness T2 of the bent portion 5 at the boundary between the bent portion 5 and the bottom portion 4, and the intermediate portion of the bent portion 5 Although the thickness Tm is shown, T1, T2 and Tm are substantially the same.

尚、胴部３と屈曲部５との境界は、図１の断面において胴部３の外面を構成する直線と、図１の断面において屈曲部５の外面を構成する曲線との接続箇所に相当する。また、屈曲部５と底部４との境界は、図１の断面において屈曲部５の外面を構成する曲線と、図１の断面において底部４の外面を構成する直線との接続箇所に相当する。   The boundary between the body portion 3 and the bent portion 5 corresponds to a connecting portion between a straight line that forms the outer surface of the body portion 3 in the cross section of FIG. 1 and a curve that forms the outer surface of the bent portion 5 in the cross section of FIG. To do. Further, the boundary between the bent portion 5 and the bottom portion 4 corresponds to a connecting portion between a curve forming the outer surface of the bent portion 5 in the cross section of FIG. 1 and a straight line forming the outer surface of the bottom portion 4 in the cross section of FIG.

ブロー成型に先立ってプリフォーム１を加熱する工程では、プリフォーム１の外側に配置した赤外線ヒーター等の熱源で胴部３、底部４及び屈曲部５が加熱される。この際、熱は、中心軸ＡＸと直交する方向に伝導する。本実施形態では、中心軸ＡＸと直交する方向の屈曲部５の厚みを略一定としているので、屈曲部５の熱吸収量が均一となり、加熱によって軟化した樹脂材料の柔らかさを屈曲部５の全体で均等にすることができる。この結果、ブロー成型時に、屈曲部５を延伸して形成された部分に、加熱の不均一さに起因する白化が生じることを抑制することができる。   In the step of heating the preform 1 prior to blow molding, the body portion 3, the bottom portion 4 and the bent portion 5 are heated by a heat source such as an infrared heater disposed outside the preform 1. At this time, heat is conducted in a direction perpendicular to the central axis AX. In this embodiment, since the thickness of the bent portion 5 in the direction orthogonal to the central axis AX is substantially constant, the heat absorption amount of the bent portion 5 becomes uniform, and the softness of the resin material softened by heating is reduced in the bent portion 5. It can be made uniform throughout. As a result, at the time of blow molding, it is possible to suppress the occurrence of whitening due to nonuniform heating in the portion formed by extending the bent portion 5.

ここで、中心軸ＡＸに直交する方向における屈曲部５の厚みの最大値と最小値との差が、厚みの最小値の０〜１５％の範囲であることが好ましく、０〜１０％であることがより好ましい。屈曲部５の厚みの最大値と最小値との差が、厚みの最小値の１５％を越えると、屈曲部５の各部の厚みのばらつきが大きくなりすぎ、ブロー成型前におけるプリフォーム１の加熱時に屈曲部５の熱吸収が不均一となり、白化等の不良を生じやすい。   Here, the difference between the maximum value and the minimum value of the bent portion 5 in the direction orthogonal to the central axis AX is preferably in the range of 0 to 15% of the minimum value of the thickness, and is 0 to 10%. It is more preferable. If the difference between the maximum value and the minimum value of the thickness of the bent portion 5 exceeds 15% of the minimum value of the thickness, the variation in the thickness of each portion of the bent portion 5 becomes too large, and the preform 1 is heated before blow molding. Sometimes the heat absorption of the bent portion 5 becomes non-uniform, and defects such as whitening are likely to occur.

以上説明したように、本実施形態に係るプリフォーム１において、底部４を略円錐形とすることによって、半球状の底部を有するプリフォーム（図２）と比べて樹脂量を低減することが可能となる。この結果、樹脂量の軽量化及び薄肉化を図ることができる。また、また、中心軸ＡＸと直交する方向における屈曲部５の厚みを略一定とすることで、屈曲部の各部の熱吸収を均一化することができるので、樹脂ボトルのうち屈曲部に対応する箇所の白化を抑制し、歩留まりを向上させることが可能となる。従って、本実施形態に係るプリフォーム１を用いることによって、軽量かつ薄肉の樹脂ボトルを歩留まり良く製造することが可能となる。   As described above, in the preform 1 according to this embodiment, the bottom 4 is substantially conical, so that the amount of resin can be reduced compared to the preform having a hemispherical bottom (FIG. 2). It becomes. As a result, the resin amount can be reduced in weight and thickness. Moreover, since the heat absorption of each part of a bending part can be equalize | homogenized by making the thickness of the bending part 5 in the direction orthogonal to central axis AX substantially constant, it respond | corresponds to a bending part among resin bottles. It is possible to suppress the whitening of the portion and improve the yield. Therefore, by using the preform 1 according to the present embodiment, it is possible to manufacture a lightweight and thin resin bottle with a high yield.

尚、本実施形態では、中心軸ＡＸと直交する方向における屈曲部５の厚みを略一定とした例を説明したが、更に、中心軸ＡＸと直交する方向における底部４の厚みを、同方向における屈曲部５の厚みとほぼ同じにしても良い。この場合、屈曲部５のみならず、底部４の各部の熱吸収量も均一化できるので、ブロー成型時における底部４の白化も抑制することができる。   In the present embodiment, the example in which the thickness of the bent portion 5 in the direction orthogonal to the central axis AX is substantially constant has been described. However, the thickness of the bottom portion 4 in the direction orthogonal to the central axis AX is The thickness of the bent portion 5 may be substantially the same. In this case, since the heat absorption amount of each part of the bottom part 4 as well as the bent part 5 can be made uniform, whitening of the bottom part 4 at the time of blow molding can also be suppressed.

また、本実施形態では、図１の断面上において屈曲部５の外面及び内面を構成する曲線が円弧である例、すなわち、屈曲部５の外面及び内面が球面の一部である例を説明したが、中心軸ＡＸと直交する方向の厚みを略一定にすることができれば、屈曲部５の外面及び内面の形状は任意で良い。   Moreover, in this embodiment, the example which the curve which comprises the outer surface and inner surface of the bending part 5 on a cross section of FIG. 1 is a circular arc, ie, the example whose outer surface and inner surface of the bending part 5, are a part of spherical surfaces was demonstrated. However, as long as the thickness in the direction orthogonal to the central axis AX can be made substantially constant, the shape of the outer surface and the inner surface of the bent portion 5 may be arbitrary.

本発明は、ポリエチレンテレフタレート等の樹脂材料を用いてブロー成型される樹脂ボトル用のプリフォームとして利用できる。   The present invention can be used as a preform for a resin bottle that is blow-molded using a resin material such as polyethylene terephthalate.

１ プリフォーム
２ ネック部
３ 胴部
４ 底部
５ 屈曲部
８ 開放端
９ 閉鎖端 DESCRIPTION OF SYMBOLS 1 Preform 2 Neck part 3 Trunk part 4 Bottom part 5 Bending part 8 Open end 9 Closed end

Claims (2)

開放端及び閉鎖端を有する樹脂成型ボトル用プリフォームであって、
前記開放端を構成するネック部と、
前記ネック部に接続される管状の胴部と、
前記閉鎖端を構成し、前記閉鎖端に向かうにつれて外径が狭まる略円錐形状を有する底部と、
前記胴部と前記底部とを接続する屈曲部とを備え、
前記胴部の中心軸に対して直交する方向における前記屈曲部の厚みが略一定であり、
断面において、前記屈曲部の外面を構成する曲線の両端を結ぶ直線から最も遠い点である頂点と、前記屈曲部の内面を構成する曲線の頂点とが、前記胴部の中心軸に対して直交する同一直線上に配置されない、樹脂成型ボトル用プリフォーム。 A preform for a resin molded bottle having an open end and a closed end,
A neck portion constituting the open end;
A tubular body connected to the neck,
Constituting the closed end, and having a substantially conical shape with an outer diameter narrowing toward the closed end;
A bending portion that connects the trunk portion and the bottom portion;
The thickness of the bent portion in a direction orthogonal to the central axis of the body portion is substantially constant;
In the cross section, the vertex that is the farthest from the straight line connecting both ends of the curve that forms the outer surface of the bent portion, and the vertex of the curve that forms the inner surface of the bent portion are orthogonal to the central axis of the trunk portion Preforms for resin molded bottles that are not placed on the same straight line. 前記中心軸に直交する方向における前記屈曲部の厚みの最大値と最小値との差が、前記中心軸に直交する方向における前記屈曲部の厚みの最小値の０〜１５％の範囲内である、請求項１に記載の樹脂成型ボトル用プリフォーム。   The difference between the maximum value and the minimum value of the thickness of the bent portion in the direction orthogonal to the central axis is in the range of 0 to 15% of the minimum value of the thickness of the bent portion in the direction orthogonal to the central axis. The preform for a resin molded bottle according to claim 1.
JP2016164773A 2012-04-25 2016-08-25 Preform for plastic bottles Active JP6340047B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016164773A JP6340047B2 (en) 2012-04-25 2016-08-25 Preform for plastic bottles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012100233A JP6043086B2 (en) 2012-04-25 2012-04-25 Preform for plastic bottles
JP2016164773A JP6340047B2 (en) 2012-04-25 2016-08-25 Preform for plastic bottles

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2012100233A Division JP6043086B2 (en) 2012-04-25 2012-04-25 Preform for plastic bottles

Publications (2)

Publication Number Publication Date
JP2016193618A true JP2016193618A (en) 2016-11-17
JP6340047B2 JP6340047B2 (en) 2018-06-06

Family

ID=49674919

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2012100233A Active JP6043086B2 (en) 2012-04-25 2012-04-25 Preform for plastic bottles
JP2016164773A Active JP6340047B2 (en) 2012-04-25 2016-08-25 Preform for plastic bottles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP2012100233A Active JP6043086B2 (en) 2012-04-25 2012-04-25 Preform for plastic bottles

Country Status (1)

Country Link
JP (2) JP6043086B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7286585B2 (en) * 2020-04-22 2023-06-05 三菱重工機械システム株式会社 Sterilization system and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491564A (en) * 1977-12-23 1979-07-20 Emhart Corp Method of making plastics bottle and molddcore bar assembly for intermediate product
JP2004090425A (en) * 2002-08-30 2004-03-25 Aoki Technical Laboratory Inc Preform having thin wall thickness and injection stretch blow molding method
JP2010531247A (en) * 2007-12-14 2010-09-24 ハスキー インジェクション モールディング システムズ リミテッド Preforms and mold stacks for making preforms

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55146718A (en) * 1979-05-01 1980-11-15 Yoshino Kogyosho Co Ltd Intermediate blank made of synthetic resin for molding biaxially spread bottle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491564A (en) * 1977-12-23 1979-07-20 Emhart Corp Method of making plastics bottle and molddcore bar assembly for intermediate product
JP2004090425A (en) * 2002-08-30 2004-03-25 Aoki Technical Laboratory Inc Preform having thin wall thickness and injection stretch blow molding method
JP2010531247A (en) * 2007-12-14 2010-09-24 ハスキー インジェクション モールディング システムズ リミテッド Preforms and mold stacks for making preforms

Also Published As

Publication number Publication date
JP2013226709A (en) 2013-11-07
JP6043086B2 (en) 2016-12-14
JP6340047B2 (en) 2018-06-06

Similar Documents

Publication Publication Date Title
CN101522385B (en) Improved plastic preform
JP6628811B2 (en) Manufacturing method of preform and container
JP4840367B2 (en) Method for producing biaxially stretched polyester bottle
JP6456388B2 (en) Preform for containers made of plastic material
KR101422308B1 (en) Biaxially stretched thin-walled polyester bottle
JP6340047B2 (en) Preform for plastic bottles
KR20190045425A (en) Mold for molding and mold for injection molding
JP2016013664A (en) Preform
WO2016017059A1 (en) Blow-molded container
EP2948284B1 (en) Preform of plastic material with lightened closed end
JP5162878B2 (en) Preform and heating method thereof
JP6553622B2 (en) Preform for plastic container with thin bottom
US10569923B2 (en) Wide mouth container and method of making the same
WO2014178346A1 (en) Composite foam container
JP2016210142A (en) Method for producing hollow container and blow molding apparatus
TW201139096A (en) Preform of plastic material with recesses formed on the head thereof
JP7370799B2 (en) Preform heating method
WO2020158919A1 (en) Temperature adjustment device and temperature adjustment method for preform and manufacturing device and manufacturing method for resin molding container
JP2010036394A (en) Preform and plastic bottle
JP6163850B2 (en) Foam stretch plastic bottle
WO2016152456A1 (en) Preform, preform molding die, and method for manufacturing synthetic resin container
WO2016067511A1 (en) Preform for liquid blow moulding
US20120112390A1 (en) Stretch rod for a two-stage blow molding machine
JP2018083335A (en) Preform for biaxial drawing blow molding of synthetic resin heat-resistant container
JP2015066776A (en) Synthetic-resin-made container and molding method thereof

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160902

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7426

Effective date: 20160926

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20160926

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170613

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170627

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20170927

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171124

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180424

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180511

R150 Certificate of patent or registration of utility model

Ref document number: 6340047

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250