JPS5950502B2 - Manufacturing method of plastic squeeze tube - Google Patents

Manufacturing method of plastic squeeze tube

Info

Publication number
JPS5950502B2
JPS5950502B2 JP55079611A JP7961180A JPS5950502B2 JP S5950502 B2 JPS5950502 B2 JP S5950502B2 JP 55079611 A JP55079611 A JP 55079611A JP 7961180 A JP7961180 A JP 7961180A JP S5950502 B2 JPS5950502 B2 JP S5950502B2
Authority
JP
Japan
Prior art keywords
umbrella
outer periphery
annular
shaped
head
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.)
Expired
Application number
JP55079611A
Other languages
Japanese (ja)
Other versions
JPS576735A (en
Inventor
芳夫 神戸
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.)
TOCHISEN KASEI KOGYO KK
Original Assignee
TOCHISEN KASEI KOGYO KK
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 TOCHISEN KASEI KOGYO KK filed Critical TOCHISEN KASEI KOGYO KK
Priority to JP55079611A priority Critical patent/JPS5950502B2/en
Publication of JPS576735A publication Critical patent/JPS576735A/en
Publication of JPS5950502B2 publication Critical patent/JPS5950502B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/106—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined using flames coming in contact with at least one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Tubes (AREA)

Description

【発明の詳細な説明】 この発明は頭部と胴部がともにプラスチックで作られ、
頭部を胴部の上端内部に嵌めて固定されたプラスチック
製絞り出しチューブの改良された製造法に関する。[Detailed description of the invention] This invention has a head and a body both made of plastic,
This invention relates to an improved method for manufacturing a plastic squeezable tube whose head is fitted and secured within the upper end of a body.

この様な絞り出しチューブは例えば実公昭４４−１１１
３公報で公知である。For example, such a squeezed tube is
It is publicly known in Publication No. 3.

これは傘状部と、その頂部から上向きに突出した口部と
、傘状部の外周から下向きに突出し、下に向つて次第に
肉厚が薄くなつた環状部を有する頭部をプラスチックで
成形し、別に熱収縮性プラスチックの筒形チューブ母体
を所要長さに切断し、その一端部（上端部）を少くとも
直径の１０％熱収縮させて絞り部を作つた’胴体を用意
し、胴体内に頭部を嵌めて胴体の絞り部を頭部の傘状部
に係合させ、胴体を絞り部で傘状部に対して熱接着し、
環状部に対しては熱説着しないで製造するのである。し
かし、これではペースト状内容物を胴体内部に下端から
充填後、胴体下端を封じ、内容物を頭部の口部から絞り
出すために胴体を圧迫すると、頭部の還状部外周と、胴
体のこ・に接触した領域の間は接着されていないから、
その間に内容物が浸入して異常に膨れ、場合によつては
熱接着されている胴体の絞り部と゛頭部の傘状部を剥離
させようとする。勿論、胴体を圧迫することにより生じ
る内圧で内容物は頭部の環状部を外周方向に拡張してそ
の外周を胴体の内面に密着させるので多くの場合、環状
部の外周と胴体との間に内容物が浸入することは起き難
いが、胴体内の内容物の量が減少すると還状部を外周方
向に拡張する充分な内圧が生起するまでのうちに内容物
が浸入することは避け難いのである。そして、環状部の
軸方向長さは頭体の径によるが２ 〜 ８ｍｍ程度とす
るとのことであるため、その長さが長いとこ・に侵入し
た内容物は最後まで絞り出すことができず、無駄になる
。又、この従来法の場合、環状部は下に向かつて次第に
薄肉になつているので、環状部の外周にも胴体を加熱に
より融着し頭体と胴体の取付強度を向上させ様とすると
胴体の熱収縮によつて環状部は変形させられると言う欠
点があるほか、胴体の上端部は頭体を嵌込む前に、直径
を少くとも１０％程度熱収縮させて絞り部を形成するた
めの工程を必要とし、手数がか・る。そこで本発明は、
従来のプラスチツク製絞り出しチユーブの上記した製造
上の問題点及び製造されたチユーブの使用上の問題点を
解消した改良された製造法を提供せんとするもので、以
下、添附図面を参照して説明する。This is made of plastic and has an umbrella-shaped part, a mouth part that protrudes upward from the top, and a head part that has an annular part that projects downward from the outer periphery of the umbrella part and whose wall thickness gradually becomes thinner toward the bottom. Separately, a cylindrical tube base made of heat-shrinkable plastic is cut to the required length, one end (upper end) is heat-shrinked by at least 10% of the diameter to create a constricted part, a body is prepared, and the inside of the body is The head is fitted into the body, the constricted part of the body is engaged with the umbrella-shaped part of the head, and the body is thermally bonded to the umbrella-shaped part at the constricted part.
The annular portion is manufactured without heat bonding. However, with this method, after filling the inside of the torso with paste-like contents from the lower end, sealing the lower end of the torso and compressing the torso to squeeze out the contents from the mouth of the head, the outer periphery of the circular part of the head and the inside of the torso. Since there is no adhesive between the areas that touched this,
During this time, the contents seep in and swell abnormally, possibly causing the constricted part of the body and the umbrella-shaped part of the head, which are heat-bonded, to separate. Of course, the internal pressure generated by compressing the torso causes the contents to expand the annular part of the head in the direction of the outer periphery and bring the outer periphery into close contact with the inner surface of the torso. It is unlikely that the contents will infiltrate, but if the amount of contents in the body decreases, it is difficult to avoid the infiltration of the contents before sufficient internal pressure is generated to expand the circular part in the outer circumferential direction. be. The axial length of the annular portion is said to be approximately 2 to 8 mm, depending on the diameter of the head body, so if the length is long, the contents that have entered the ring cannot be squeezed out until the end, resulting in waste. become. In addition, in the case of this conventional method, since the annular part gradually becomes thinner toward the bottom, if the body is fused to the outer periphery of the annular part by heating to improve the attachment strength between the head body and the body, the body In addition to the drawback that the annular part is deformed by heat shrinkage, the upper end of the body is heat-shrinked by at least 10% in diameter to form a constricted part before the head is fitted. It requires a process and is time-consuming. Therefore, the present invention
The purpose is to provide an improved manufacturing method that solves the above-mentioned manufacturing problems of conventional plastic squeeze tubes and problems in using the manufactured tubes, and will be explained below with reference to the attached drawings. do.

１は熱収縮性を有する胴体で、膨張比大なる熱可塑性プ
ラスチツクを原料としてインフレーシヨン法で筒状に長
尺に成形した母体から所要長さに寸断したものである。Reference numeral 1 denotes a heat-shrinkable body, which is cut into required lengths from a base body formed into a long cylindrical shape by an inflation method using a thermoplastic plastic with a high expansion ratio as a raw material.

原料プラスチツクは例えばポリエチレン、ポリプロピレ
ン、塩化ビニール、塩化ビニリデン、ナイロン、アイオ
ノマーその他適宜のものでよく、筒壁の肉厚は約０．２
０〜０．５０ｍｍ、膨張比は１：２以上、好ましくは１
：２．０〜３．０である。２は射出成形法により作つ
たプラスチツク製の頭体を示す。The raw material plastic may be, for example, polyethylene, polypropylene, vinyl chloride, vinylidene chloride, nylon, ionomer, or other appropriate materials, and the wall thickness of the cylinder wall is approximately 0.2
0 to 0.50 mm, expansion ratio is 1:2 or more, preferably 1
:2.0 to 3.0. 2 shows a plastic head made by injection molding.

頭体２は従来のもの・様に傘状部３と、その頂部から上
向きに突出し、外周には蓋を取付けるための雄ネジを有
する口部４と、傘状部３の外周から下向きに突出する環
状部５を備えて居るが、たゞ環状部５の肉厚は全周、全
長にわたり、傘状部３と同一である。頭体２は加熱によ
つて胴体１と融着できる熱可塑性プラスチツクを原料と
して成形され、傘状部、環状部の厚さは使用した原料プ
ラスチツクの種類、傘状部ないし環状部の外周の径に応
じて定めるが、後述の加熱により胴体を熱収縮させる際
に変形させられずに内側から胴体の上端部を支持するこ
とを目標にし、約１．０〜２．０ｍｍとする。The head body 2 has an umbrella-shaped part 3, which protrudes upward from the top of the umbrella-shaped part 3, and a mouth part 4 having a male screw on the outer periphery for attaching a lid, and which protrudes downward from the outer periphery of the umbrella-shaped part 3, as in the conventional one. However, the wall thickness of the annular portion 5 is the same as that of the umbrella-shaped portion 3 over the entire circumference and entire length. The head body 2 is molded from thermoplastic plastic that can be fused to the body 1 by heating, and the thickness of the umbrella-shaped part and the annular part depends on the type of raw material plastic used and the diameter of the outer periphery of the umbrella-shaped part or the annular part. However, the thickness is set at about 1.0 to 2.0 mm, with the aim of supporting the upper end of the fuselage from the inside without being deformed when the fuselage is heat-shrinked by heating, which will be described later.

尚、環状部５の軸方向長さはその外径によつても異るが
６．０〜１０．０ｍｍ程度である。勿諭、傘状部ないし
環状部の外径は胴体の内径よりも僅かに小さい。製造す
るには、先ず筒状をした胴体１内に頭体２を嵌込み、胴
体の上端を傘状部３の外周から前に少量突出させる。こ
の突出量は傘状部ないし環状部の外径によるが、大体５
．０〜１０．０ｍｍ程度あればよい。本発明では胴体の
一端部を熱収縮させ、直径が１０％以上減少した絞り部
を形成する必要がないので、その手数が省け、且つ頭体
は切断したま・の胴体のどちらの端部の中に嵌込んでも
よいので、従来の様に絞り部を形成していない下端部か
ら図体を、口部を上に向けて嵌め、胴体内を上端部まで
移動させなくてもよいので、手数と時間がか・らない。
こうして嵌合したら頭体の傘状部３の外周辺及び環状部
５の外周をガスの火焔で焙る。The axial length of the annular portion 5 is approximately 6.0 to 10.0 mm, although it varies depending on its outer diameter. Of course, the outer diameter of the umbrella or annular portion is slightly smaller than the inner diameter of the body. To manufacture it, first, the head body 2 is fitted into the cylindrical body 1, and the upper end of the body is made to protrude a small amount forward from the outer periphery of the umbrella-shaped part 3. The amount of protrusion depends on the outer diameter of the umbrella or annular portion, but is approximately 5.
．． It is sufficient if it is about 0 to 10.0 mm. In the present invention, there is no need to heat-shrink one end of the torso to form a constricted part with a diameter reduced by 10% or more. Since it can be inserted into the body, it is not necessary to insert the figure from the lower end, which does not have the constricted part, with the mouth facing upward, and move it inside the body to the upper end, which saves time and effort. It doesn't take much time.
After fitting in this way, the outer periphery of the umbrella-shaped part 3 and the outer periphery of the annular part 5 of the head body are roasted with a gas flame.

これにより傘状部の外周から前に突出した胴体の上端突
出部１ａは熱収縮して傘状部の外周辺上に倒れ込みなが
ら傘状部の外周辺と融着し、又、この上端突出部１ａの
下で環状部５の外周と接している胴体の環状領域１ｂは
同様に熱収縮しながら頭体の環状部５の外周に融着する
。この場合、胴体の環状領域１ｂよりも下の部分が熱収
縮を起して変形するのを防ぐため、こ・は例えば水を含
んだ布などで包み、熱収縮するまでは加熱されない様に
する。次いで、傘状部３の外周辺上に倒れ込んで融着し
ている胴体の上端突出部１ａの領域を高周波シール、高
周波誘導加熱シール、超音波シール、インパルスヒート
シール等の手段で型押しにより刻み目６を付けながら傘
状部３の外周辺に喰込ませる。As a result, the upper end protruding part 1a of the body that protrudes forward from the outer periphery of the umbrella-shaped part is thermally contracted and falls onto the outer periphery of the umbrella-shaped part while being fused to the outer periphery of the umbrella-shaped part. The annular region 1b of the body, which is in contact with the outer periphery of the annular portion 5 below 1a, is similarly heat-shrinked and fused to the outer periphery of the annular portion 5 of the head body. In this case, in order to prevent the part of the body below the annular region 1b from being deformed due to heat shrinkage, it should be wrapped in, for example, water-soaked cloth to prevent it from being heated until it shrinks. . Next, the region of the upper end protruding portion 1a of the body that has fallen down and fused onto the outer periphery of the umbrella-shaped portion 3 is notched by embossing by means such as high-frequency sealing, high-frequency induction heating sealing, ultrasonic sealing, impulse heat sealing, etc. 6 and bite into the outer periphery of the umbrella-shaped part 3.

これにより本発明のチユーブでは如何なる場合も内容物
が頭体の環状部外周と胴体の環状領域の間に浸入するこ
とが防げる。This prevents the contents of the tube of the present invention from penetrating between the outer periphery of the annular portion of the head body and the annular region of the body under any circumstances.

そして、頭体の環状部５は全長、全周にわたり肉厚が傘
状部３に等しいので、胴体の環状領域１ｂの熱収縮によ
り変形させられることはない。Since the annular part 5 of the head body has a wall thickness equal to that of the umbrella part 3 over the entire length and circumference, it is not deformed by thermal contraction of the annular region 1b of the body.

更に、前述した如く胴体の環状領域１ｂと頭体の環状部
外周は融着して、その間に内容物が浸入する余地を与え
ない上に、胴体は上端突出部１ａの領域でも傘状部の外
周辺上に融着し、且つ型押しに’よりシールと同時に刻
み目で傘状部の外周辺に喰込んでいるため頭体と胴体の
取付強度は極めて高く、従来のものに較べ遥かに内圧、
外力に耐える。特にシール手段での型押しによる刻み目
付け工程は、ガスの火焔で胴体の上端突出部１ａを熱収
縮させて傘状部の外周辺上に倒れ込ませ、且つ融着した
）゛けでは融着の不充分な製品が少数のパーセンテージ
で生じるのを完全に解消する。Furthermore, as described above, the annular region 1b of the body and the outer periphery of the annular portion of the head body are fused together, leaving no room for the contents to infiltrate between them. Because it is fused to the outer periphery and is notched into the outer periphery of the umbrella-shaped part at the same time as it is sealed by embossing, the attachment strength between the head and body is extremely high, and the internal pressure is much lower than that of conventional ones. ,
Withstand external forces. In particular, in the process of notching by embossing with the sealing means, the upper end protruding part 1a of the body is heat-shrinked with a gas flame and collapsed onto the outer periphery of the umbrella-shaped part, and is fused. Completely eliminate the small percentage of products that are insufficient.

又、加熱して融着する際に、頭体２に対して融着できる
材料からなるシート或いはその材料をラミネートしたア
ルミ箔などの封止片７を頭体２の内部に嵌め込んで同時
に融着して置けば、その後、胴体の下端から充填され、
胴体の下端を封じて内部に閉じ込められた内容物は口部
の蓋を外し、この封止片７が破られるまで外気との接触
を断たれる。Also, when heating and fusing, a sealing piece 7 such as a sheet made of a material that can be welded to the head body 2 or aluminum foil laminated with the material is fitted inside the head body 2 and the sealing piece 7 is simultaneously fused. If you put it on the body, it will be filled from the bottom end of the body,
The contents sealed inside the body by sealing the lower end of the body are cut off from contact with the outside air until the mouth lid is removed and the sealing piece 7 is broken.

従つて、内容物は長期間にわたり変質しないと共に、購
入者はチユーブが自分の前には使用されたことがないこ
とを確認でき、安心して使用できる。Therefore, the contents will not deteriorate over a long period of time, and the purchaser can confirm that the tube has never been used before and can use it with confidence.

【図面の簡単な説明】 第１図は本発明により製造したチユーブの正面図、第２
図は同上の要部の一半を断面とした拡大正面図、第３図
は頭体を胴体の一端部内に嵌込んだ状態の要部の拡大断
面図、第４図は加熱して融着した状態の要部の拡大断面
図、第５図はシール手段で型押した状態の要部の拡大断
面図で、図中、１は胴体、２は頭体、３はその傘状部、
４は同じく口部、５は同じく環状部、１ａは胴体の上端
部領域、１ｂは同じく環状領域を示す。[Brief Description of the Drawings] Figure 1 is a front view of the tube manufactured according to the present invention, Figure 2 is a front view of the tube manufactured according to the present invention;
The figure is an enlarged front view of a half of the main part of the same as above, Figure 3 is an enlarged cross-sectional view of the main part with the head body fitted into one end of the body, and Figure 4 is a heated and fused one. FIG. 5 is an enlarged sectional view of the main part in a state stamped with a sealing means. In the figure, 1 is the body, 2 is the head body, 3 is the umbrella-shaped part,
4 also shows the mouth part, 5 the same annular part, 1a the upper end region of the body, and 1b the same annular region.

Claims (1)

【特許請求の範囲】[Claims] １ 膨張比が大きい熱可塑性プラスツチクからインフレ
ーシヨン法でチューブ状に成形した熱収縮性の母体を所
要の長さに切断して得た胴体の任意の端部内に、口部と
、傘状部と、傘状部の外周から下向きに傘状部と同厚で
突出した環状部を有し、傘状部と環状部の外径が胴体の
内径に適合し、且つ胴体と融着できる熱可塑性プラスツ
チクで成形した頭体を嵌込み、胴体の上端を頭体の傘状
部から上に突出させ頭体の環状部よりも下に位置する胴
体の部分が加熱されるのを防ぎながら頭体の傘状部外周
辺及び還状部外周にガスの火■を向けて焙り、これによ
り胴体の上端突出部及び環状部の外周に接した環状領域
を熱収縮させて胴体の上端突出部は傘状部の外周辺に倒
れ込ませ、同時に傘状部の外周辺と環状部の外周に融着
し、次いで傘状部の外周辺上に倒れ込んで融着している
胴体の上端突出部を高周波シール、高周波誘導シール、
超音波シール、インパルスヒートシール等の手段で型押
しにより刻み目を付けながら傘状部の外周辺に喰込ませ
ることを特徴とするプラスチック製絞り出しチューブの
製造法。1. A mouth part and an umbrella-shaped part are placed in any end of the body obtained by cutting a heat-shrinkable base body formed into a tube shape by the inflation method from thermoplastic plastic with a high expansion ratio to the required length. and an annular part that protrudes downward from the outer periphery of the umbrella part with the same thickness as the umbrella part, and the outer diameters of the umbrella part and the annular part match the inner diameter of the body, and the thermoplastic material can be fused to the body. The head body molded from plastic is fitted, and the upper end of the body protrudes above the umbrella-shaped part of the head body to prevent the part of the body located below the annular part of the head body from being heated. A gas fire is directed at the outer periphery of the umbrella-shaped part and the outer periphery of the annular part, and the annular area in contact with the upper end protrusion of the body and the outer periphery of the annular part is thereby heat-shrinked, so that the upper end protrusion of the body becomes umbrella-shaped. At the same time, the outer periphery of the umbrella-shaped part and the outer periphery of the annular part are fused, and then the upper end protrusion of the body, which is collapsed and fused onto the outer periphery of the umbrella-shaped part, is subjected to high-frequency sealing. , high frequency induction seal,
A method for manufacturing a squeezed plastic tube, which is characterized in that it is bitten into the outer periphery of an umbrella-shaped portion while making indentations by embossing by means of ultrasonic sealing, impulse heat sealing, etc.
JP55079611A 1980-06-14 1980-06-14 Manufacturing method of plastic squeeze tube Expired JPS5950502B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55079611A JPS5950502B2 (en) 1980-06-14 1980-06-14 Manufacturing method of plastic squeeze tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55079611A JPS5950502B2 (en) 1980-06-14 1980-06-14 Manufacturing method of plastic squeeze tube

Publications (2)

Publication Number Publication Date
JPS576735A JPS576735A (en) 1982-01-13
JPS5950502B2 true JPS5950502B2 (en) 1984-12-08

Family

ID=13694826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55079611A Expired JPS5950502B2 (en) 1980-06-14 1980-06-14 Manufacturing method of plastic squeeze tube

Country Status (1)

Country Link
JP (1) JPS5950502B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59121344U (en) * 1983-02-03 1984-08-15 凸版印刷株式会社 extruded tube container
JPS59121347U (en) * 1983-02-03 1984-08-15 凸版印刷株式会社 extruded tube container
JPS59121346U (en) * 1983-02-03 1984-08-15 凸版印刷株式会社 extruded tube container
JPS59121345U (en) * 1983-02-03 1984-08-15 凸版印刷株式会社 extruded tube container
GB8332878D0 (en) * 1983-12-09 1984-01-18 Lucas Ind Plc Drum and hand brake stop
JPH0624352Y2 (en) * 1984-11-09 1994-06-29 大成化工株式会社 Extruded tube with blind lid
JPS61189911A (en) * 1985-02-19 1986-08-23 Nissho Insatsusho:Kk Manufacture of tube with passage closing material

Also Published As

Publication number Publication date
JPS576735A (en) 1982-01-13

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