JPH0647805A - Tube container body section - Google Patents

Tube container body section

Info

Publication number
JPH0647805A
JPH0647805A JP22201692A JP22201692A JPH0647805A JP H0647805 A JPH0647805 A JP H0647805A JP 22201692 A JP22201692 A JP 22201692A JP 22201692 A JP22201692 A JP 22201692A JP H0647805 A JPH0647805 A JP H0647805A
Authority
JP
Japan
Prior art keywords
resin layer
laminated sheet
tube container
surface resin
section
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
JP22201692A
Other languages
Japanese (ja)
Other versions
JP3425974B2 (en
Inventor
Hideharu Yamagishi
秀春 山岸
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP22201692A priority Critical patent/JP3425974B2/en
Publication of JPH0647805A publication Critical patent/JPH0647805A/en
Application granted granted Critical
Publication of JP3425974B2 publication Critical patent/JP3425974B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Tubes (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To improve the quality and the like by forming a joint section of a cylindrical molded body of a tube container body section by heat sealing sections of respective rear face resin layers on side section on both sides of a laminate sheet and heat sealing sections of respective surface resin layers in the state of falling down sideways of the heat sealing sections. CONSTITUTION:A tube container body section 1 is constituted of a cylindrical molded body. The cylindrical body section is formed by forming a laminate sheet 6 provided at least with a surface resin layer 2 and a rear face layer 5 into the cylindrical shape so that the rear face resin layer 5 forms an inner peripheral face layer. At that time, respective rear resin layers 5 on side sections 7 and 8 on both sides of the laminate sheet 6 are brought into contact in the butting shape one another to form a first heat sealing section 9. Respective surface resin layers 2 are brought into contact with each other and heat welded to form a second heat sealing section 10 in the state of the first heat sealing section 9 fall making down sideways. The end faces of the laminate sheet 6 are protected from being exposed to the inner side and the interlaminar strength of the joint section and resistance to bag-breaking are improved by the arrangement.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は積層シートによって形成
されている筒状成形体からなるチューブ容器胴部に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube container body made of a tubular molded body formed of laminated sheets.

【0002】[0002]

【従来の技術】積層シートによるチューブ容器胴部は、
少なくとも表面樹脂層と裏面樹脂層とを有し、所望によ
ってこれらの両樹脂層の間に介装させた支持基材やバリ
ヤー材等との積層シートによる筒状成形体で形成されて
いる。そして、前記筒状成形体は、積層シートの1側辺
部上に他側辺部を重ね、1側辺部における表面樹脂層と
他側辺部における裏面樹脂層とを溶着してなる所謂封筒
貼りによる胴貼り部を形成することによって得られる。
2. Description of the Related Art The body of a tube container made of laminated sheets is
It has at least a front surface resin layer and a back surface resin layer, and is formed as a tubular molded body by a laminated sheet with a supporting base material, a barrier material and the like interposed between these two resin layers as desired. The tubular molded body is a so-called envelope formed by stacking the other side portion on one side portion of the laminated sheet and welding the surface resin layer on the one side portion and the back surface resin layer on the other side portion. It is obtained by forming a body-attached portion by attachment.

【0003】[0003]

【発明が解決しようとする課題】前記積層シートによっ
て形成されているチューブ容器胴部を有するチューブ容
器は、積層シートにおける1側辺部上に他側辺部を重
ね、1側辺部の表面樹脂層と他側辺部の裏面樹脂層とを
溶着させてなる胴貼り部において、容器内面側に位置す
る積層シートの側辺部の端面が容器内に露出し、チュー
ブ容器内の内填物と接触する。
A tube container having a tube container body formed of the above-mentioned laminated sheet is such that the other side is superposed on one side of the laminated sheet and the surface resin of the one side is formed. In the body sticking part formed by welding the layer and the backside resin layer of the other side part, the end face of the side part of the laminated sheet located on the inner surface side of the container is exposed in the container, and the inner filler in the tube container Contact.

【0004】このため、積層シート中に例えばアルミニ
ウム箔やガスバリヤー層としてのエチレン−ビニルアル
コール共重合体樹脂層等が積層されている場合には、こ
れらの層が内填物と接触することにより、内填物の品質
を低下させたり、あるいは、積層シートのガスバリヤー
性を低下させる等の欠点を有する。
Therefore, when, for example, an aluminum foil or an ethylene-vinyl alcohol copolymer resin layer as a gas barrier layer is laminated in the laminated sheet, these layers may come into contact with the internal filler. However, there are drawbacks such as deterioration of the quality of the internal filler or deterioration of the gas barrier property of the laminated sheet.

【0005】すなわち、チューブ容器胴部を形成してい
る積層シート中にアルミニウム箔が積層されている場合
には、チューブ容器内に酸またはアルカリ性物質が充填
されると、容器内面側に位置する積層シートの側辺部の
端面に露出しているアルミニウム箔がチューブ容器内の
内填物中に溶出して内填物の風味を損なわせる。
That is, when an aluminum foil is laminated in the laminated sheet forming the body of the tube container, when the tube container is filled with an acid or alkaline substance, the laminate positioned on the inner surface side of the container is laminated. The aluminum foil exposed on the end face of the side portion of the sheet is dissolved in the filling material in the tube container to impair the flavor of the filling material.

【0006】また、チューブ容器胴部を形成している積
層シート中にエチレン−ビニルアルコール共重合体樹脂
層が積層されている場合には、容器内面側に位置する積
層シートの側辺部の端面に露出しているエチレン−ビニ
ルアルコール共重合体樹脂層がチューブ容器内の水分を
吸収し、積層シートのガスバリヤー性の機能を損なわせ
る。
When the ethylene-vinyl alcohol copolymer resin layer is laminated in the laminated sheet forming the body of the tube container, the end surface of the side edge of the laminated sheet located on the inner surface of the container The ethylene-vinyl alcohol copolymer resin layer exposed at the end absorbs the water in the tube container and impairs the gas barrier function of the laminated sheet.

【0007】さらに、積層シート中にポリオレフィン樹
脂層が積層されている場合には、チューブ容器内に例え
ばフレーバー成分のような浸透性の高い物質を含有する
内填物が充填されると、この高浸透性物質がポリオレフ
ィン樹脂層に吸収,吸着され、内填物の品質を劣化させ
る等の欠点を有する。
Furthermore, when the polyolefin resin layer is laminated in the laminated sheet, when the tube container is filled with an internal filler containing a substance having a high permeability such as a flavor component, the high content of the polyolefin resin layer is increased. The permeable substance is absorbed and adsorbed by the polyolefin resin layer, and has the drawback of deteriorating the quality of the internal filler.

【0008】このため、[図4]に示されるように、積
層シートによる筒状成形体の胴貼り部の形成の際に、積
層シートの1側辺部11における表面樹脂層12及び裏
面樹脂層13と、積層シートの他側辺部14における表
面樹脂層12及び裏面樹脂層13との流れにより、積層
シートの端面を被覆するようにしたり、あるいは、[図
5]に示されるように、積層シートの1側辺部15の表
面樹脂層16と他側辺部17における裏面樹脂層18と
を溶着して形成させた胴貼り部の少なくとも容器内周面
側に別製のシールテープ19を貼着させることによっ
て、積層シートの端面と容器内の内填物との接触を防ぐ
等の工夫がなされている。
Therefore, as shown in [FIG. 4], when forming the body bonding portion of the tubular molded body from the laminated sheet, the front surface resin layer 12 and the back surface resin layer on the one side 11 of the laminated sheet are formed. 13 and the surface resin layer 12 and the back surface resin layer 13 on the other side 14 of the laminated sheet so as to cover the end surface of the laminated sheet, or as shown in FIG. Separately attached seal tape 19 is attached to at least the inner peripheral surface of the container of the body attachment portion formed by welding the front surface resin layer 16 of the one side portion 15 and the back surface resin layer 18 of the other side portion 17 of the sheet. By attaching them, it is devised to prevent contact between the end surface of the laminated sheet and the filling material in the container.

【0009】しかるに、前者の積層シートの側辺部にお
ける表面樹脂層12と裏面樹脂層13との流れにより、
積層シートの端面を被覆するものは、特に、溶融温度が
高く熱溶融時の流動性の小さい樹脂を利用した場合に
は、積層シートの端面を完全に被覆し得ない場合がしば
しば発生する。また、このタイプの胴貼り部を形成する
際には、積層シートの側辺部の表面樹脂層と裏面樹脂層
との流れを利用するものであるから、積層シートの表面
樹脂層12と裏面樹脂層13とを同一の樹脂で形成しな
くてはならない等の制限がある。さらに、積層シートの
表面樹脂層12と裏面樹脂層13との厚さをそれぞれ5
0μ以上にすることが必要であり、チューブ容器という
観点からは熱可塑性樹脂の必要量が大きく不経済であ
る。
However, due to the flow of the front surface resin layer 12 and the back surface resin layer 13 at the side portion of the former laminated sheet,
What covers the end surface of the laminated sheet often cannot completely cover the end surface of the laminated sheet, especially when a resin having a high melting temperature and a low fluidity at the time of thermal melting is used. Further, since the flow of the front surface resin layer and the back surface resin layer on the side portion of the laminated sheet is utilized when forming this type of body bonding portion, the surface resin layer 12 and the back surface resin layer of the laminated sheet are used. There are restrictions such as that the layer 13 and the layer 13 must be formed of the same resin. Further, the thicknesses of the front surface resin layer 12 and the back surface resin layer 13 of the laminated sheet are each 5
It is necessary to make it 0 μ or more, and from the viewpoint of a tube container, the required amount of the thermoplastic resin is large and uneconomical.

【0010】また、後者のシールテープを貼着させるも
のは、別製のシールテープを必要とする煩雑さがあり、
かつ、積層シートの1側辺部の表面樹脂層と他側辺部の
裏面樹脂層とを貼着させるものであることから、該シー
ルテープの貼着によっては積層シートの表面樹脂層と裏
面樹脂層とのそれぞれの厚さを低減させることができな
い。
Further, the latter one to which the seal tape is attached has the complexity of requiring a separate seal tape,
In addition, since the surface resin layer on one side of the laminated sheet and the backside resin layer on the other side are attached to each other, the surface resin layer and the backside resin of the laminated sheet may be different depending on the sticking of the seal tape. The respective thickness with the layers cannot be reduced.

【0011】これに対して本発明は、チューブ容器胴部
を形成している積層シートの端面がチューブ容器内に露
出することが無く、しかも、胴貼り部における層間強度
が高く、耐破袋性等が良好で、かつ、積層シートの表面
樹脂層と裏面樹脂層との厚みを従来のものよりも低減さ
せ得るチューブ容器胴部を提供する。
On the other hand, according to the present invention, the end face of the laminated sheet forming the body of the tube container is not exposed inside the tube container, and the interlayer strength at the body attachment part is high, and the bag-breaking resistance is high. And the like, and a tube container body capable of reducing the thickness of the front surface resin layer and the back surface resin layer of the laminated sheet as compared with the conventional one.

【0012】[0012]

【課題を解決するための手段】本発明のチューブ容器胴
部は、該容器胴部の一端にプラスチック製のチューブ容
器頭部を接合することによってチューブ容器に形成され
るもので、表面樹脂層と裏面樹脂層とを有する積層シー
トを、該積層シートにおける裏面樹脂層が内周面層をな
すようにして成形した筒状成形体からなる。そして、該
筒状成形体の胴貼り部は、積層シートの1側辺部の裏面
樹脂層と他側辺部の裏面樹脂層とを接当して合掌状に熱
溶着させた第1の熱シール部と、該第1の熱シール部を
一方に横倒させた状態にして表面樹脂層同士を接当して
熱溶着させた第2の熱シール部とで形成されている。
The tube container body of the present invention is formed in a tube container by joining a plastic tube container head to one end of the container body, and a surface resin layer and A laminated sheet having a backside resin layer is formed into a tubular molded body by molding the backside resin layer of the laminated sheet so as to form an inner peripheral surface layer. Then, the body-attached portion of the tubular molded body is formed by abutting the backside resin layer on one side and the backside resin layer on the other side of the laminated sheet to heat-weld them in a palmar shape. It is formed of a seal portion and a second heat seal portion in which the first heat seal portion is laid on one side and the surface resin layers are brought into contact with each other and heat welded.

【0013】前記構成による本発明のチューブ容器胴部
をなす積層シートには、表面樹脂層と裏面樹脂層とこれ
らの両者の間に必要に応じて介装される支持基材やバリ
ヤー材等とによる積層構成のシートが利用される。
The laminated sheet forming the body part of the tube container of the present invention having the above-mentioned structure includes a front surface resin layer, a back surface resin layer, and a supporting base material, a barrier material and the like interposed between both of them as necessary. A sheet having a laminated structure according to is used.

【0014】表面樹脂層及び裏面樹脂層は、例えば、低
密度ポリエチレン,中密度ポリエチレン,リニヤー低密
度ポリエチレン,ポリプロピレン,エチレン−酢酸ビニ
ル共重合体,アイオノマー,エチレン−アクリル酸共重
合体,飽和ポリエステル,ポリアミド,ポリアクリロニ
トリル,ポリビニルアルコール等による樹脂を押出しコ
ートする、あるいは、これらの樹脂によるフィルムをド
ライラミネート法によって積層する等して形成される。
The front resin layer and the back resin layer are, for example, low density polyethylene, medium density polyethylene, linear low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer, ethylene-acrylic acid copolymer, saturated polyester, It is formed by extrusion-coating a resin made of polyamide, polyacrylonitrile, polyvinyl alcohol or the like, or laminating films made of these resins by a dry lamination method.

【0015】支持基材には、例えば、飽和ポリエステ
ル,ナイロン,ポリプロピレン,高密度ポリエチレン等
による2軸延伸プラスチックフィルム、セロハン,紙等
が利用され、通常は印刷による化粧加工が付される。ま
た、バリヤー材としては、例えば、アルミニウム箔,各
種の金属蒸着フィルム等が利用される。
As the supporting substrate, for example, a biaxially stretched plastic film made of saturated polyester, nylon, polypropylene, high-density polyethylene, cellophane, paper or the like is used, and usually a cosmetic treatment by printing is applied. As the barrier material, for example, aluminum foil, various metal vapor deposition films, etc. are used.

【0016】[0016]

【実施例】以下本発明のチューブ容器胴部の具体的な構
成を実施例に基づいて説明する。
EXAMPLES The concrete structure of the tube container body of the present invention will be described below based on examples.

【0017】「実施例1」[図1]において、厚さ30
μの低密度ポリエチレン樹脂フィルム「大日本樹脂
(株) :LP−5」からなる表面樹脂層2と、厚さ12
μの2軸延伸ポリエステルフィルム「東洋紡績 (株) :
E5200」3と、厚さ9μのアルミニウム箔「日本製
箔 (株) :一般軟質箔」4と、厚さ30μのポリアクリ
ロニトリルフィルム「タマポリ (株) :ハイトロンB
X」からなる裏面樹脂層5とを、それぞれドライラミネ
ート用接着剤「武田薬品工業 (株) :A515/A1
2」を利用して積層し、符号6で示されるチューブ容器
胴部用の積層シート(A)を得た。
In "Example 1" [FIG. 1], a thickness of 30
Low density polyethylene resin film of μ “Dainippon Resin
Co., Ltd .: LP-5 "surface resin layer 2 and thickness 12
μ biaxially oriented polyester film "Toyobo Co., Ltd .:
E5200 ”3, aluminum foil with a thickness of 9μ“ Nippon Foil Co., Ltd .: General soft foil ”4, and polyacrylonitrile film with a thickness of 30μ“ Tama Poly Co., Ltd .: Hytron B ”
The back surface resin layer 5 made of "X" is used as an adhesive for dry laminating "Takeda Yakuhin Kogyo Co., Ltd .: A515 / A1".
2 ”was used for lamination to obtain a laminated sheet (A) indicated by reference numeral 6 for a tube container body.

【0018】積層シート(A)を幅109.6mmにス
リットした後に、この積層シートをローラーに巻き付け
て、表面樹脂層2が外周面層をなすようにして筒状に成
形すると共に、[図2]に示されるように、積層シート
の側辺部同士において、1側辺部7の裏面樹脂層5と他
側辺部8の裏面樹脂層5とを幅3mmの合掌状に接当し
て熱溶着させ、さらにローラーを脱抜することにより、
シール代3mmの第1の熱シール部9を形成し、直径3
3mmの円筒体を得た。
After slitting the laminated sheet (A) to a width of 109.6 mm, the laminated sheet is wound around a roller to form a cylindrical shape so that the surface resin layer 2 forms an outer peripheral surface layer, and [FIG. ], The backside resin layer 5 of the one side portion 7 and the backside resin layer 5 of the other side portion 8 are abutted in a palm shape having a width of 3 mm between the side portions of the laminated sheet, and heat is applied. By welding and removing the roller,
The first heat seal portion 9 having a seal margin of 3 mm is formed, and the diameter is 3
A 3 mm cylinder was obtained.

【0019】続いて、前記円筒体を所定の長さに裁断し
た後に熱シール用のマンドレルに挿入し、[図3]にお
いて、該第1の熱シール部9を一方に横倒させた状態に
して表面樹脂層2,2同士を接当して熱溶着することに
より、第2の熱シール部10を形成し、さらに熱シール
用のマンドレルから脱抜し、筒状成形体からなるチュー
ブ容器胴部1を得た。なお、第1の熱シール部9及び第
2の熱シール部10の形成は、180℃,2kg/cm
2 の熱圧条件で行なった。
Then, after cutting the cylindrical body into a predetermined length, the cylindrical body is inserted into a heat-sealing mandrel, and in FIG. 3, the first heat-sealing portion 9 is laid sideways. The surface resin layers 2 and 2 are brought into contact with each other and heat-welded to form the second heat-sealing portion 10, which is then removed from the heat-sealing mandrel and formed of a tubular molded body. Part 1 was obtained. The formation of the first heat seal portion 9 and the second heat seal portion 10 was performed at 180 ° C. and 2 kg / cm.
It was carried out under the hot pressure condition of 2 .

【0020】「実施例2」厚さ50μの低密度ポリエチ
レン樹脂フィルムからなる表面樹脂層と、厚さ12μの
2軸延伸ポリエステルフィルム「東洋紡績 (株) :E5
200」と、厚さ9μのアルミニウム箔「日本製箔
(株) :一般軟質箔」と、厚さ50μのポリアクリロニ
トリルフィルムからなる裏面樹脂層とを、それぞれドラ
イラミネート用接着剤「武田薬品工業 (株) :A515
/A12」を利用して積層したチューブ容器胴部用の積
層シート(B)を利用し、以下の工程は実施例1の対応
する工程と同一の工程により、筒状成形体からなる別の
チューブ容器胴部を得た。
Example 2 A surface resin layer made of a low-density polyethylene resin film having a thickness of 50 μ, and a biaxially stretched polyester film having a thickness of 12 μ “Toyobo Co., Ltd .: E5”
200 "and aluminum foil with a thickness of 9μ" Japan foil
Co., Ltd .: General soft foil "and a backside resin layer made of a polyacrylonitrile film having a thickness of 50 µ, respectively, and an adhesive for dry lamination" Takeda Yakuhin Kogyo Co., Ltd .: A515
/ A12 "is used to laminate the laminated sheet (B) for the body of the tube container, and the following steps are the same as the corresponding steps of Example 1 and are different tubes made of a tubular molded body. The container body was obtained.

【0021】「比較例1」厚さ30μのポリアクリロニ
トリルフィルム「タマポリ (株) :ハイトロンBX」か
らなる表面樹脂層と、厚さ12μの2軸延伸ポリエステ
ルフィルム「東洋紡績 (株) :E5200」と、厚さ9
μのアルミニウム箔「日本製箔 (株) :一般軟質箔」
と、厚さ30μのポリアクリロニトリルフィルム「タマ
ポリ (株) :ハイトロンBX」からなる裏面樹脂層と
を、それぞれドライラミネート用接着剤「武田薬品工業
(株) :A515/A12」を利用して積層し、チュー
ブ容器胴部用の積層シート(C)を得た。
"Comparative Example 1" A surface resin layer made of a polyacrylonitrile film having a thickness of 30 µm "Tamapoly Co .: Hytron BX" and a biaxially stretched polyester film having a thickness of 12 µm "Toyobo Co., Ltd .: E5200". , Thickness 9
μ aluminum foil “Nippon Foil Co., Ltd .: General soft foil”
And a backside resin layer made of a polyacrylonitrile film having a thickness of 30 μ, “Tamapoly Co., Ltd .: Hytron BX”, and an adhesive for dry lamination “Takeda Yakuhin Kogyo
Co., Ltd .: A515 / A12 ”was used to obtain a laminated sheet (C) for a tube container body.

【0022】積層シート(C)を幅109.6mmに裁
断した後に、該積層シートをローラーに巻き付け、表面
樹脂層が外周面層をなすようにして筒状に成形すると共
に、積層シートの側辺部同士において、積層シートの1
側辺部の上に他側辺部を重ね合わせ、下側に位置する1
側辺部の表面樹脂層と上側に位置する他側辺部の裏面樹
脂層とを幅3mmに亙って接当させ、該接当部を熱溶着
させる所謂封筒貼りによるシール代3mmの熱シール部
を形成した後、さらにローラーを脱抜することにより、
直径33mmの円筒体を得た。
After cutting the laminated sheet (C) to a width of 109.6 mm, the laminated sheet is wound around a roller to form a cylindrical shape with the surface resin layer forming the outer peripheral surface layer, and the side edges of the laminated sheet. 1 part of the laminated sheet
Position the other side on top of the other side and place it on the lower side 1
A heat seal having a sealing margin of 3 mm by so-called envelope sticking, in which the front surface resin layer of the side portion and the back surface resin layer of the other side portion located on the upper side are brought into contact with each other over a width of 3 mm, and the contact portion is heat-welded After forming the part, by further removing the roller,
A cylindrical body having a diameter of 33 mm was obtained.

【0023】続いて、前記円筒体を所定の長さに裁断
し、比較のための筒状成形体からなるチューブ容器胴部
を得た。なお、熱シール部の形成は180℃,2kg/
cm2の熱圧条件で行なった。
Subsequently, the cylindrical body was cut into a predetermined length to obtain a tube container body made of a cylindrical molded body for comparison. The heat-sealed portion is formed at 180 ° C and 2 kg /
It was carried out under a hot pressure condition of cm 2 .

【0024】「比較例2」厚さ50μのポリアクリロニ
トリルフィルムからなる表面樹脂層と、厚さ12μの2
軸延伸ポリエステルフィルム「東洋紡績 (株) :E52
00」と、厚さ9μのアルミニウム箔「日本製箔 (株)
:一般軟質箔」と、厚さ50μのポリアクリロニトリ
ルフィルムからなる裏面樹脂層とを、それぞれドライラ
ミネート用接着剤「武田薬品工業 (株) :A515/A
12」を利用して積層させたチューブ容器胴部用の積層
シート(D)を利用し、以下の工程は比較例1の対応す
る工程と同一の工程により、筒状成形体からなる別のチ
ューブ容器胴部を得た。
[Comparative Example 2] A surface resin layer made of a polyacrylonitrile film having a thickness of 50 μm and a surface resin layer having a thickness of 12 μm
Axial stretched polyester film "Toyobo Co., Ltd .: E52
00 ”and an aluminum foil with a thickness of 9μ“ Nippon Foil Co., Ltd.
: General soft foil "and a backside resin layer made of a polyacrylonitrile film having a thickness of 50 µ, respectively, and an adhesive for dry lamination" Takeda Yakuhin Kogyo Co., Ltd .: A515 / A
12 "is used to laminate the laminated sheet (D) for the body of the tube container, and the following steps are the same as the corresponding steps of Comparative Example 1, and are different tubes made of a tubular molded body. The container body was obtained.

【0025】[実験]前述の実施例1〜2及び比較例1
〜2による各チューブ容器胴部の100個について、容
器胴部の内周面に積層シートの端面が露出しているか否
かを、10重量%CuSO4 溶液によって検査した。結
果を[表1]に示す。また、各チューブ容器胴部の胴貼
り部のシール強度の測定結果を[表1]に併記する。
[Experiment] The above-mentioned Examples 1 and 2 and Comparative Example 1
About 100 of each tube container body according to 2 to 3, whether or not the end face of the laminated sheet is exposed on the inner peripheral surface of the container body was examined with a 10 wt% CuSO 4 solution. The results are shown in [Table 1]. In addition, the measurement result of the seal strength of the body sticking portion of each tube container body is also shown in [Table 1].

【0026】さらに、前記実施例1〜2及び比較例1〜
2による各チューブ容器胴部の10個を利用し、その天
地をシールすると共に内部に水50ccを充填した密封
袋を作成し、これに50kg/cm2 の荷重をかける耐
圧試験による破袋状況を検査した。結果を[表1]に示
す。
Furthermore, the above-mentioned Examples 1-2 and Comparative Examples 1--2
Using 10 of each tube container body according to 2, seal the top and bottom and create a sealed bag filled with 50 cc of water inside, and check the bag breakage condition by pressure resistance test applying a load of 50 kg / cm 2 to this. Inspected. The results are shown in [Table 1].

【0027】[0027]

【表1】 [Table 1]

【0028】[0028]

【作用】本発明のチューブ容器胴部は、表面樹脂層と裏
面樹脂層とを有する積層シートを、該積層シートにおけ
る裏面樹脂層が内周面層をなすようにして成形した筒状
成形体からなり、該筒状成形体の胴貼り部が、積層シー
トの1側辺部の裏面樹脂層と他側辺部の裏面樹脂層とを
接当して合掌状に熱溶着させた第1の熱シール部と、該
第1の熱シール部を一方に横倒させた状態にして表面樹
脂層同士を接当して熱溶着させた第2の熱シール部とで
形成されている。
The body of the tube container of the present invention comprises a tubular molded body obtained by molding a laminated sheet having a surface resin layer and a backside resin layer so that the backside resin layer of the laminated sheet forms an inner peripheral surface layer. The first heat is obtained by abutting the backside resin layer on one side of the laminated sheet and the backside resin layer on the other side of the laminated body part of the tubular molded body and heat-welding them in a palm shape. It is formed of a seal portion and a second heat seal portion in which the first heat seal portion is laid on one side and the surface resin layers are brought into contact with each other and heat welded.

【0029】前記構成による本発明のチューブ胴部は、
積層シートによるチューブ容器胴部の胴貼り部が、積層
シートの1側辺部の裏面樹脂層と他側辺部の裏面樹脂層
とを接当して合掌状に熱溶着させた第1の熱シール部
と、該第1の熱シール部を一方に横倒させた状態にして
表面樹脂層同士を接当して熱溶着させた第2の熱シール
部とで形成されているため、チューブ容器胴部を形成す
る積層シートの端面が容器内に露出することがない。
The tube body of the present invention having the above structure is
The first heat in which the body-attached portion of the body part of the tube container by the laminated sheet abuts the backside resin layer on one side of the laminated sheet and the backside resin layer on the other side of the laminated sheet and heat-welds them in a palm shape. Since it is formed by the seal portion and the second heat seal portion in which the first heat seal portion is laid sideways on one side and the surface resin layers are brought into contact with each other and heat welded, the tube container The end surface of the laminated sheet forming the body is not exposed inside the container.

【0030】このため、チューブ容器胴部を形成してい
る積層シートの端面とチューブ容器内の内填物とが直接
接触することが無く、チューブ容器用積層シート中に例
えば金属箔やエチレン−ビニルアルコール共重合体樹脂
層等が含まれている場合にも、これらの層とチューブ容
器内の内填物とが接触するようなことがなく、内填物の
品質保持特性に対して優れた作用,効果が奏される。
Therefore, there is no direct contact between the end face of the laminated sheet forming the body of the tube container and the internal filler in the tube container, and for example, metal foil or ethylene-vinyl is contained in the laminated sheet for tube container. Even when the alcohol copolymer resin layer and the like are included, these layers do not come into contact with the inner filler in the tube container, and have an excellent effect on the quality retention characteristics of the inner filler. , The effect is played.

【0031】特に、溶融温度が高く、熱溶融時の流動性
の小さい樹脂、例えば、ニトリル系樹脂等を裏面樹脂層
として積層した積層シートによる筒状成形体を得るよう
な際に、極めて優れた効果が得られる。
In particular, it is extremely excellent in obtaining a tubular molded body made of a laminated sheet in which a resin having a high melting temperature and a low fluidity at the time of heat melting, for example, a nitrile resin is laminated as a backside resin layer. The effect is obtained.

【0032】また、本発明のチューブ容器胴部は、積層
シートによるチューブ容器胴部の胴貼り部が、前記した
第1の熱シール部と第2の熱シール部とで形成されてお
り、各熱シール部が裏面樹脂層同士及び表面樹脂層同士
による同一樹脂層同士の熱溶着からなるものであるた
め、表面樹脂層と裏面樹脂層とを同一の樹脂で形成する
必要が無く、例えば、内填物中の揮発性成分等の非吸着
性に優れた作用を奏する高価なアクリルニトリル系樹脂
によって裏面樹脂層を形成し、廉価な低密度ポリエチレ
ン樹脂で表面樹脂層を形成するようにすれば、非吸着性
に優れた作用を奏するチューブ容器が安価に得られる。
Further, in the tube container body of the present invention, the body sticking portion of the tube container body made of the laminated sheet is formed by the above-mentioned first heat seal portion and second heat seal portion. Since the heat seal portion is formed by heat welding the same resin layers to each other by the back surface resin layers and the front surface resin layers, it is not necessary to form the front surface resin layer and the back surface resin layer with the same resin. If the backside resin layer is formed of an expensive acrylonitrile-based resin that has an excellent non-adsorption property of the volatile components in the filler, and the surface resin layer is formed of an inexpensive low-density polyethylene resin, A tube container having an excellent non-adsorbing property can be obtained at low cost.

【0033】さらに、本発明のチューブ容器胴部は、チ
ューブ容器胴部の胴貼り部における第1の熱シール部を
合掌貼りによる熱圧着ロールによって形成することがで
きるため、得られる胴貼り部の接着強度が高く、また、
第1の熱シール部と第2の熱シール部とにより、耐圧強
度及び層間強度等において安定した胴貼り部が得られ
る。
Further, in the tube container body of the present invention, the first heat-sealing portion in the body-bonding portion of the tube container body can be formed by the thermocompression-bonding roll by the joint bonding, so that the obtained body-bonding portion can be formed. High adhesive strength,
By the first heat seal portion and the second heat seal portion, a body sticking portion that is stable in pressure resistance and interlayer strength can be obtained.

【0034】さらに、本発明のチューブ容器胴部は、積
層シートによるチューブ容器胴部の胴貼り部が、前記し
た第1の熱シール部と第2の熱シール部とで形成されて
いるため、チューブ容器胴部としての風合いを満足しさ
えすれば、表面樹脂層や裏面樹脂層を押出しコート法で
形成する場合には、これらの樹脂層の厚さは3μ以上で
あれば良く、また、表面樹脂層や裏面樹脂層を既成のフ
ィルムのドライラミネート法で形成する場合には、これ
らの樹脂層の厚さは10μ以上であれば良い。したがっ
て、材料費の節減による経済的なメッリトが得られる。
Further, in the tube container body of the present invention, since the body sticking portion of the tube container body made of the laminated sheet is formed by the above-mentioned first heat seal portion and second heat seal portion, If the surface resin layer and the back resin layer are formed by extrusion coating as long as the texture of the tube container body is satisfied, the thickness of these resin layers may be 3 μm or more. When the resin layer and the backside resin layer are formed by the dry laminating method of the existing film, the thickness of these resin layers may be 10 μm or more. Therefore, economical merits can be obtained by reducing the material cost.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のチューブ容器胴部に利用される積層シ
ートの1例を模型的に示す横断面図である。
FIG. 1 is a transverse cross-sectional view schematically showing an example of a laminated sheet used for a tube container body of the present invention.

【図2】本発明のチューブ容器胴部の胴貼り部の製造途
中工程を模型的に示す切断端面図である。
FIG. 2 is a cut end view schematically showing a process in the middle of manufacturing a body sticking portion of a tube container body of the present invention.

【図3】本発明のチューブ容器胴部の胴貼り部の1例を
模型的に示す切断端面図である。
FIG. 3 is a cut end view schematically showing an example of a body sticking portion of a tube container body of the present invention.

【図4】流動性の良い表面樹脂層と裏面樹脂層とを有す
る積層シートによるチューブ容器胴部の胴貼り部の状態
の要部を模型的に説明する断面図である。
FIG. 4 is a cross-sectional view schematically illustrating a main part of a state of a body sticking portion of a tube container body formed of a laminated sheet having a front resin layer and a back resin layer having good fluidity.

【図5】チューブ容器胴部の胴貼り部にシールテープを
貼着させた状態の要部を模型的に説明する断面図であ
る。
FIG. 5 is a cross-sectional view schematically illustrating a main part in a state where a seal tape is attached to a body attachment portion of a tube container body portion.

【符号の説明】[Explanation of symbols]

1:チューブ容器胴部 2:積層シートの表面樹脂層 5:積層シートの裏面樹脂層 6:チューブ容器胴部用の積層シート 7:積層シート6の1側辺部 8:積層シート6の他側辺部 9:第1の熱シール部 10:第2の熱シール部 1: Tube container body 2: Surface resin layer of laminated sheet 5: Back surface resin layer of laminated sheet 6: Laminated sheet for tube container body 7: One side of laminated sheet 6 8: Other side of laminated sheet 6 Side 9: First heat seal portion 10: Second heat seal portion

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 B29L 23:22 4F ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B29L 23:22 4F

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 表面樹脂層と裏面樹脂層とを有する積層
シートを、該積層シートにおける裏面樹脂層が内周面層
をなすようにして成形した筒状成形体からなり、該筒状
成形体における胴貼り部が、積層シートの1側辺部の裏
面樹脂層と他側辺部の裏面樹脂層とを接当して合掌状に
熱溶着させた第1の熱シール部と、該第1の熱シール部
を一方に横倒させた状態にして表面樹脂層同士を接当し
て熱溶着させた第2の熱シール部とで形成されているこ
とを特徴とするチューブ容器胴部。
1. A tubular molded body formed by molding a laminated sheet having a front surface resin layer and a back surface resin layer so that the back surface resin layer of the laminated sheet forms an inner peripheral surface layer. And a first heat-sealing portion in which the backside resin layer on one side and the backside resin layer on the other side of the laminated sheet are brought into contact with each other and heat-welded in a palm-shape, And a second heat seal portion in which the surface resin layers are brought into contact with each other and heat welded to each other in a state where the heat seal portion is laid sideways on one side.
JP22201692A 1992-07-29 1992-07-29 Tube container body Expired - Fee Related JP3425974B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22201692A JP3425974B2 (en) 1992-07-29 1992-07-29 Tube container body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22201692A JP3425974B2 (en) 1992-07-29 1992-07-29 Tube container body

Publications (2)

Publication Number Publication Date
JPH0647805A true JPH0647805A (en) 1994-02-22
JP3425974B2 JP3425974B2 (en) 2003-07-14

Family

ID=16775789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22201692A Expired - Fee Related JP3425974B2 (en) 1992-07-29 1992-07-29 Tube container body

Country Status (1)

Country Link
JP (1) JP3425974B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002012240A (en) * 2000-04-18 2002-01-15 Hilti Ag Tubular packaging bag made of composite foil
JP2021133959A (en) * 2020-02-26 2021-09-13 凸版印刷株式会社 Tube container
JP2021142995A (en) * 2020-03-11 2021-09-24 凸版印刷株式会社 Tube container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002012240A (en) * 2000-04-18 2002-01-15 Hilti Ag Tubular packaging bag made of composite foil
JP2021133959A (en) * 2020-02-26 2021-09-13 凸版印刷株式会社 Tube container
JP2021142995A (en) * 2020-03-11 2021-09-24 凸版印刷株式会社 Tube container

Also Published As

Publication number Publication date
JP3425974B2 (en) 2003-07-14

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