JPH0440252B2 - - Google Patents
Info
- Publication number
- JPH0440252B2 JPH0440252B2 JP60201642A JP20164285A JPH0440252B2 JP H0440252 B2 JPH0440252 B2 JP H0440252B2 JP 60201642 A JP60201642 A JP 60201642A JP 20164285 A JP20164285 A JP 20164285A JP H0440252 B2 JPH0440252 B2 JP H0440252B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- opening
- plastic film
- sealed
- vacuum
- 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 - Lifetime
Links
- 239000002985 plastic film Substances 0.000 claims description 27
- 229920006255 plastic film Polymers 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 13
- 238000009461 vacuum packaging Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 2
- 241000219122 Cucurbita Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
Landscapes
- Vacuum Packaging (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
この発明は中空部を有する筒状体の真空包装方
法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a vacuum packaging method for a cylindrical body having a hollow portion.
＜従来の技術＞
従来の筒状体の真空包装方法としては、例えば
第３図に示されているようなものが広く周知され
ている。<Prior Art> As a conventional vacuum packaging method for a cylindrical body, the one shown in FIG. 3, for example, is widely known.
筒状体１は工業用セラミツクの半加工品で、強
度がなくて破損し易く、また湿気を嫌うものであ
る。そしてこの筒状体１は全体が円筒形状をして
おり、内部には貫通状の中空部２を有している。
そしてこの筒状体１をチユーブ状のプラスチツク
フイルム３にて真空包装するには、まず筒状体１
の外側をプラスチツクフイルム３にて一旦包み、
次に真空チヤンバー内において両端の開口部４，
５から内部を真空吸引し、そしてその両端の開口
部４，５を最後に溶封すれば、プラスチツクフイ
ルム３で筒状体１を真空包装することができる。 The cylindrical body 1 is a semi-finished product made of industrial ceramic, has no strength, is easily damaged, and dislikes moisture. This cylindrical body 1 has a cylindrical shape as a whole, and has a penetrating hollow part 2 inside.
In order to vacuum package this cylindrical body 1 with a tube-shaped plastic film 3, first the cylindrical body 1 is
Once wrapped the outside with plastic film 3,
Next, in the vacuum chamber, the openings 4 at both ends,
The cylindrical body 1 can be vacuum-packed with the plastic film 3 by vacuum suctioning the inside from 5 and finally sealing the openings 4 and 5 at both ends.
従つて、このような従来の真空包装方法にて包
装された筒状体１は、第３図に示されているよう
に内部に「真空空間」、即ち真空化した中空部２
がそのまま残され、筒状体１には常に外側から圧
力Ｐ〔大気圧〕がかかるので、あまり強度のない
セラミツク半製品である筒状体１がその圧力Ｐに
耐えきれなくなつて破損してしまう場合があつ
た。 Therefore, the cylindrical body 1 packaged by such a conventional vacuum packaging method has a "vacuum space" inside, that is, a evacuated hollow part 2, as shown in FIG.
is left as it is, and pressure P (atmospheric pressure) is always applied to the cylindrical body 1 from the outside, so the cylindrical body 1, which is a semi-finished ceramic product that is not very strong, cannot withstand the pressure P and breaks. There were times when I had to put it away.
また筒状体１の両端で中空部２を直接覆う開口
部４，５近辺のプラスチツクフイルム部分３ａ
も、圧力Ｐにて常に中空部２側へ引つ張られたテ
ンシヨン状態となるので、筒状体１の両端がエツ
ジ化してプラスチツクフイルム部分３ａにピンホ
ールが発生したり、あるいは非常に破れ易い状態
となり、湿気を嫌うセラミツクの半加工品その他
のものを包装するには好ましい方法でなかつた。 Also, the plastic film portions 3a near the openings 4 and 5 directly cover the hollow portion 2 at both ends of the cylindrical body 1.
Also, since it is always in a tension state where it is pulled toward the hollow part 2 side by the pressure P, both ends of the cylindrical body 1 become edges, and pinholes occur in the plastic film part 3a, or it is very easy to tear. This is not a suitable method for packaging semi-finished ceramic products and other items that are sensitive to moisture.
更に、従来の筒状体の一般的包装方法として、
筒状体の外側を被覆する包装シートと、中空部を
内側から被覆する包装シートとの縁部を、中空部
の縁周に沿つて密着シールする方法〔特公昭52−
17800号公報参照〕が既に提案されている。しか
し、このような包装技術を利用するにしても、外
側と内側の２枚の包装シートを用意する必要があ
り、またそれら包装シートの縁部を合わせて密着
シールする作業も難しいので、真空包装には応用
しがたいものであつた。 Furthermore, as a conventional general packaging method for cylindrical bodies,
A method of tightly sealing the edges of a packaging sheet covering the outside of a cylindrical body and a packaging sheet covering the hollow part from the inside along the periphery of the hollow part
17800] has already been proposed. However, even if such packaging technology is used, it is necessary to prepare two packaging sheets, one for the outside and one for the inside, and it is also difficult to fit the edges of the packaging sheets together and seal them tightly. It was difficult to apply.
この発明はこのような従来の技術に着目してな
されたもので、強度のない筒状体を破損・変形さ
せたり、包装後のプラスチツクフイルムを破れや
すい状態にさせない筒状体の真空包装方法を提供
せんとするものである。 The present invention has been made by focusing on such conventional technology, and provides a vacuum packaging method for cylindrical bodies that does not damage or deform the cylindrical body, which lacks strength, or that does not cause the plastic film to be easily torn after packaging. This is what we intend to provide.
＜問題点を解決するための手段＞
この発明に係る筒状体の真空包装方法は、中空
部を有する筒状体に外側へ通す状態で且つ筒状体
の両側の少なくとも一方に折り返し代を残す状態
にしてチユーブ状のプラスチツクフイルムを施
し、次いで、筒状体の外側へ通した方の開口部を
一次シールし、そして、同プラスチツクフイルム
の折り返し代を内側へ折り返すことにより前記一
次シールした開口部を筒状体の内側へ通して貫通
させ、そして次に未シールの開口部から真空吸引
した後、該開口部だけを前記一次シール済みの開
口部と重ね合わすことなく二次シールするもので
ある。<Means for Solving the Problems> The method for vacuum packaging a cylindrical body according to the present invention involves passing the cylindrical body outward through a cylindrical body having a hollow portion, and leaving a folding margin on at least one of both sides of the cylindrical body. A tube-shaped plastic film is applied to the cylindrical body, and then the opening that passes through to the outside of the cylindrical body is first sealed, and the folded portion of the plastic film is folded back inward to form the first sealed opening. is passed through the inside of the cylindrical body, and then, after vacuum suction is applied from the unsealed opening, only this opening is secondarily sealed without overlapping with the previously sealed opening. .
また、この発明に係る別の筒状体の真空包装方
法は、中空部を有する筒状体の内側へ通す状態で
且つ筒状体の両側の少なくとも一方に折り返し代
を残す状態にしてチユーブ状のプラスチツクフイ
ルムを施し、次いで、筒状体の内側へ通さない方
の開口部を一次シールし、そして、同プラスチツ
クフイルムの折り返し代を外側へ折り返すことに
より未シールの開口部を筒状体の外側へ通して筒
状体を包み込み、そして次に未シールの開口部か
ら真空吸引した後、該開口部だけを前記一次シー
ル済みの開口部と重ね合わすことなく二次シール
するものである。 Another method of vacuum packaging a cylindrical body according to the present invention is to pass the tube-shaped body through the inside of the cylindrical body having a hollow portion and to leave a folding margin on at least one of both sides of the cylindrical body. Apply a plastic film, then temporarily seal the opening that does not pass inside the cylindrical body, and then fold the folded portion of the plastic film outward to open the unsealed opening to the outside of the cylindrical body. The cylindrical body is wrapped through the opening, and then vacuum suction is applied from the unsealed opening, and then only the opening is secondarily sealed without overlapping with the previously sealed opening.
＜実施例＞
以下この発明の詳細を図面に基づい説明する。
尚、従来と共通する部分については同一の符号を
付し、重複する説明は省略する。<Example> The details of this invention will be explained below based on the drawings.
Incidentally, the same reference numerals are given to the parts common to the conventional ones, and redundant explanation will be omitted.
第１図及び第２図は本発明の一実施例を示す図
である。まず筒状体１の外側に、一方の開口部４
側に折り返し代Ｓを残す状態で、プラスチツクフ
イルム３を通す。そして折り返し代Ｓ側の開口部
４を溶封（一次シール）する〔第１図参照〕。次
に溶封した折り返し代Ｓ側の開口部４を筒状体１
の内側へ通す。即ち、開口部４側を中空部２内へ
他方側へ抜けるまでいつぱいに折り返す。すると
この時点で筒状体１の外表面１ａも内表面１ｂも
プラスチツクフイルム３にて近接的に被覆された
状態となる。〔第２図参照〕。そして後に真空包装
装置内において、溶封していない開口部５から真
空吸引して、その開口部５だけを開口部４を重ね
合わすことなく溶封（二次シール）すれば真空包
装が完了する。従つてこのように真空包装した筒
状体１内部に、真空化した中空部２が残されるこ
とがないので、筒状体１が破損したり、或いはプ
ラスチツクフイルム３が破れ易くなつたり、ピン
ホールが発生し易くなつたりすることはない。 FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention. First, open one opening 4 on the outside of the cylindrical body 1.
Pass the plastic film 3 through it, leaving a folding allowance S on the side. Then, the opening 4 on the folding margin S side is melt-sealed (primary seal) [see Fig. 1]. Next, open the melt-sealed opening 4 on the folding margin S side to the cylindrical body 1.
Pass it inside. That is, the opening 4 side is folded back as far as possible until it passes into the hollow part 2 to the other side. At this point, both the outer surface 1a and the inner surface 1b of the cylindrical body 1 are closely covered with the plastic film 3. [See Figure 2]. Then, in the vacuum packaging machine, vacuum is drawn from the unsealed opening 5 and only that opening 5 is melt-sealed (secondary seal) without overlapping the opening 4, and the vacuum packaging is completed. . Therefore, since the vacuum-evacuated hollow part 2 is not left inside the cylindrical body 1 vacuum-packed in this way, the cylindrical body 1 may be damaged, the plastic film 3 may be easily torn, or pinholes may occur. does not become more likely to occur.
尚、以上の説明では、プラスチツクフイルムを
筒状体の外側へ先に通す例を示したが、これとは
逆に、まずプラスチツクフイルムを筒状体の内側
へ通し、次いで筒状体の内側へ通さない方の開口
部を一次シールし、そして、同プラスチツクフイ
ルムの折り返し代を外側へ折り返すことにより未
シールの開口部を筒状体の外側へ通して筒状体を
包み込み、そして次に未シールの開口部から真空
吸引した後、該開口部だけを前記一次シール済み
の開口部と重ね合わすことなく二次シールするよ
うにしても同様の作用効果を得ることができる。 In the above explanation, an example was shown in which the plastic film is first passed through the outside of the cylindrical body, but in contrast to this, the plastic film is first passed inside the cylindrical body, and then the plastic film is passed inside the cylindrical body. The opening that cannot be passed through is first sealed, and then the unsealed opening is passed through the outside of the cylindrical body by folding the folded portion of the same plastic film outward to wrap the cylindrical body, and then the unsealed The same effect can be obtained by applying vacuum suction through the opening and then performing secondary sealing on only the opening without overlapping the primary sealed opening.
また、以上の説明で筒状体１の形状を筒状形状
としたが、これに限定されず角筒やその他の断面
形状の筒状体、或いはひようたん形のように長手
方向に不規則な形状をしたものであつても構わな
い。 Further, in the above explanation, the shape of the cylindrical body 1 is assumed to be cylindrical, but the shape is not limited to this, and the cylindrical body may have a square tube or other cross-sectional shape, or may be irregular in the longitudinal direction such as a gourd shape. It doesn't matter if it has any shape.
＜効 果＞
この発明に係る筒状体の真空包装方法は以上説
明してきた如き内容のものであつて、プラスチツ
クフイルムと筒状体との間に真空空間を残さずに
真空包装するので、強度がなく脆い筒状体でも破
損したり変形したりすることはなく確実に真空包
装できるという効果がある。<Effects> The method for vacuum packaging a cylindrical body according to the present invention has the content as described above, and since the vacuum packaging is performed without leaving a vacuum space between the plastic film and the cylindrical body, the strength is improved. This has the effect that even a fragile cylindrical body can be reliably vacuum packaged without being damaged or deformed.
またプラスチツクフイルムは筒状体に密着した
状態となるので、破れづらくピンホールその他も
発生しにくくなり、真空包装本来の防湿、防塵、
酸化防止等の機能を確実化させることができると
いう効果もある。 In addition, since the plastic film is in close contact with the cylindrical body, it is difficult to tear and pinholes are less likely to occur.
It also has the effect of ensuring functions such as oxidation prevention.
更に、プラスチツクフイルムの一端を外側又は
内側へ折り返したりするだけなので、難しい作業
を要したりすることなく実施が簡単で作業性及び
コストの面からも有利である。 Furthermore, since one end of the plastic film is simply folded back outward or inward, it is easy to carry out without requiring any difficult work, and is advantageous in terms of workability and cost.
第１図は本発明の他の実施例に係る筒状体の外
側を一旦プラスチツクフイルムに包んだ状態を示
す断面図、第２図は一方の開口部を中空部内に折
り返した状態を示す第１図相当の断面図、そして
第３図はこの発明の従来例を示す断面図である。
１……筒状体、２……中空部、３……プラスチ
ツクフイルム、１ａ……外表面、１ｂ……内表
面、Ｓ……折り返し代。
FIG. 1 is a sectional view showing a state in which the outside of a cylindrical body according to another embodiment of the present invention is once wrapped in a plastic film, and FIG. 2 is a sectional view showing a state in which one opening is folded back into the hollow part FIG. 3 is a sectional view showing a conventional example of the present invention. DESCRIPTION OF SYMBOLS 1... Cylindrical body, 2... Hollow part, 3... Plastic film, 1a... Outer surface, 1b... Inner surface, S... Folding allowance.
Claims (1)
つ筒状体の両側の少なくとも一方に折り返し代を
残す状態にしてチユーブ状のプラスチツクフイル
ムを施し、 次いで、筒状体の外側へ通した方の開口部を一
次シールし、 そして、同プラスチツクフイルムの折り返し代
を内側へ折り返すことにより前記一次シールした
開口部を筒状体の内側へ通して貫通させ、 そして次に未シールの開口部から真空吸引した
後、該開口部だけを前記一次シール済みの開口部
と重ね合わすことなく二次シールすることを特徴
とする筒状体の真空包装方法。 ２ 中空部を有する筒状体の内側へ通す状態で且
つ筒状体の両側の少なくとも一方に折り返し代を
残す状態にしてチユーブ状のプラスチツクフイル
ムを施し、 次いで、筒状体の内側へ通さない方の開口部を
一次シールし、 そして、同プラスチツクフイルムの折り返し代
を外側へ折り返すことにより未シールの開口部を
筒状体の外側へ通して筒状体を包み込み、 そして次に未シールの開口部から真空吸引した
後、該開口部だけを前記一次シール済みの開口部
と重ね合わすことなく二次シールすることを特徴
とする筒状体の真空包装方法。[Claims] 1. Applying a tube-shaped plastic film to the outside of a cylindrical body having a hollow portion and leaving a folding margin on at least one of both sides of the cylindrical body; The opening that is passed through to the outside of the cylindrical body is firstly sealed, and the folded portion of the plastic film is folded inward to pass the primarily sealed opening into the inside of the cylindrical body. A method for vacuum packaging a cylindrical body, characterized in that after vacuum suction is applied from an opening of a seal, only the opening is secondarily sealed without overlapping with the previously sealed opening. 2. A tube-shaped plastic film is applied so as to be passed inside a cylindrical body having a hollow part and with a folding margin left on at least one of both sides of the cylindrical body, and then a method that does not pass inside the cylindrical body. The opening of the plastic film is first sealed, and the unsealed opening is passed through the outside of the cylindrical body by folding the folded portion of the plastic film outward to wrap the cylindrical body, and then the unsealed opening is sealed. A method for vacuum packaging a cylindrical body, characterized in that after vacuum suction is applied to the cylindrical body, only the opening is secondarily sealed without overlapping with the previously sealed opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20164285A JPS6264712A (en) | 1985-09-13 | 1985-09-13 | Vacuum packaging method of cylindrical body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20164285A JPS6264712A (en) | 1985-09-13 | 1985-09-13 | Vacuum packaging method of cylindrical body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6264712A JPS6264712A (en) | 1987-03-23 |
| JPH0440252B2 true JPH0440252B2 (en) | 1992-07-02 |
Family
ID=16444469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20164285A Granted JPS6264712A (en) | 1985-09-13 | 1985-09-13 | Vacuum packaging method of cylindrical body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6264712A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6577124B1 (en) | 2018-11-26 | 2019-09-18 | 住友化学株式会社 | Packing method of sputtering target |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016545U (en) * | 1983-07-13 | 1985-02-04 | 株式会社日立製作所 | Jig for soldering ceramic caps |
-
1985
- 1985-09-13 JP JP20164285A patent/JPS6264712A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016545U (en) * | 1983-07-13 | 1985-02-04 | 株式会社日立製作所 | Jig for soldering ceramic caps |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6264712A (en) | 1987-03-23 |
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