JPS589892Y2 - packaging sheet - Google Patents
packaging sheetInfo
- Publication number
- JPS589892Y2 JPS589892Y2 JP1977037002U JP3700277U JPS589892Y2 JP S589892 Y2 JPS589892 Y2 JP S589892Y2 JP 1977037002 U JP1977037002 U JP 1977037002U JP 3700277 U JP3700277 U JP 3700277U JP S589892 Y2 JPS589892 Y2 JP S589892Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- packaging sheet
- corrugations
- troughs
- wave
- 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
Links
Landscapes
- Buffer Packaging (AREA)
- Wrappers (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【考案の詳細な説明】
本考案はポリスチレン系樹脂発泡シートからなる新規な
包装用シートに関するものである。[Detailed Description of the Invention] The present invention relates to a novel packaging sheet made of a polystyrene resin foam sheet.
熱可塑性樹脂発泡シートを段ボール紙の中芯紙の如く波
型（コルゲート）に成形することは既に知られている。It is already known to form thermoplastic resin foam sheets into corrugated shapes, such as the core of corrugated paperboard.
しかし、同一の厚みを有し、単に波型に成形したシート
は、波型の横方向に引張ると伸縮してその表面積が変動
する。However, a sheet having the same thickness that is simply formed into a corrugated shape will expand and contract when pulled in the transverse direction of the corrugation, and its surface area will vary.
一般の緩衝材とじて使用する場合には問題はないが、伸
縮しない物品に成形する場合、或いは段ボール紙として
使用する場合には更に加工を施す必要がある。There is no problem when using it as a general cushioning material, but when it is molded into an article that does not expand or contract, or when it is used as corrugated paperboard, further processing is required.
本考案は、波型形状を有し、しかも伸縮しない包装用シ
ートを提供するものであって、底面が平坦であり１表面
に多数の並列に並んだ波型を有し、該波型が発泡シート
の押出方向と直角方向に形成され、波型の頂部が低密度
であり、谷部が高密度であるポリスチレン系発泡シート
製包装用シートを要旨とするものである。The present invention provides a packaging sheet that has a corrugated shape and does not expand or contract. The gist of the present invention is a packaging sheet made of a polystyrene foam sheet, which is formed in a direction perpendicular to the extrusion direction of the sheet, and has corrugated tops of low density and troughs of high density.
次に図面に基づいて本考案を詳述する。Next, the present invention will be explained in detail based on the drawings.
第１図は本考案の包装用シー１−１の斜視図であり、第
２図はその拡大横断面図である。FIG. 1 is a perspective view of a packaging sheet 1-1 of the present invention, and FIG. 2 is an enlarged cross-sectional view thereof.
図面において、包装用シート１は約１０倍発泡のポリス
チレン発泡シートから成形せられたものであり、その底
面２は平坦である。In the drawing, a packaging sheet 1 is formed from a polystyrene foam sheet that is about 10 times more foamed, and its bottom surface 2 is flat.
３は波型の谷部であり。４は波型の頂部である。3 is the trough of the wave. 4 is the top of the waveform.
隣接する２個の谷部３０間に弧状の山部５が形成せられ
、１個の直線伏の波型が形成されている。An arcuate peak portion 5 is formed between two adjacent valley portions 30, and one straight wave pattern is formed.
波型は等間隔に多数並設せられている。A large number of waveforms are arranged side by side at equal intervals.
波型の寸法の好適な１例を示せば。谷部３の厚みａが０
．５ｍｍ、シートの厚さｂが２．５間、頂部４と谷部３
の差Ｃが２．０間、隣接する谷部３０間隔、即ち山のピ
ッチｄが６ｍｍである。Here is an example of a suitable wave size. Thickness a of valley part 3 is 0
．． 5mm, sheet thickness b is 2.5mm, top 4 and valley 3
The difference C is 2.0, and the interval between adjacent troughs 30, that is, the pitch d of the peaks is 6 mm.
かかる波型形状を有する発泡シートを得るには１例えば
、押出成形法によって製造されたポリスチレン発泡シー
トを加熱炉内を通過せしめて加熱軟化せしめ、これを平
坦な面を有する金型と、直線伏の波型を多数並設した金
型とよりなり、かつ、波型の頂点およびそれに対応する
平坦な面を有する金型の位置に真空孔が穿設せられた一
対の金型の型窩内に導入し、金型を密閉し前記真空孔か
ら吸引減圧せしめることによって得ることができる。To obtain a foamed sheet having such a corrugated shape, 1. For example, a polystyrene foamed sheet manufactured by extrusion molding is heated and softened by passing it through a heating furnace, and then placed in a mold having a flat surface and a linearly shaped foamed sheet. Inside the mold cavities of a pair of molds, which are made of a mold in which a large number of wave shapes are arranged side by side, and a vacuum hole is bored at the position of the mold having the apex of the wave shape and a corresponding flat surface. It can be obtained by introducing the resin into a mold, sealing the mold, and reducing the pressure by suction through the vacuum hole.
得られる波型形状を有する発泡シートの谷部３は金型の
押圧によってその密度が高められ、波型の頂部４が低密
度であり、谷部３が高密度の発泡シートとされている。The density of the troughs 3 of the obtained foamed sheet having a corrugated shape is increased by the pressure of the mold, so that the crests 4 of the corrugations have a low density and the troughs 3 have a high density.
本考案の包装用シー１−１は、上記の如き構成よりなり
、シートの底面２が平坦であり、表面に直線状の波型が
多数並列して形成せしめられ、谷部３が頂部４よりも高
密度に構成されているので、波型と直角方向に引張って
もシートが延伸されることがない。The packaging sheet 1-1 of the present invention has the above-mentioned configuration, the bottom surface 2 of the sheet is flat, a large number of linear corrugations are formed on the surface in parallel, and the troughs 3 are closer to the top 4. Since the sheet is also constructed with high density, the sheet will not be stretched even if it is pulled in a direction perpendicular to the corrugations.
また、波型の縦方向からの圧迫または延伸に対して抵抗
力が強く、横方向には極めて彎曲し易い性質を有してい
る。In addition, it has a strong resistance to compression or stretching in the longitudinal direction of the wave shape, and has a property of being extremely easy to curve in the transverse direction.
更に本考案の包装用シート１はポリスチレン系樹脂発泡
シートから構成されているので適度の剛性を有し、断熱
性、防水性が優れ、また、波型形状を有するので１弾力
性、緩衝性が一層増強せられている。Furthermore, since the packaging sheet 1 of the present invention is composed of a polystyrene resin foam sheet, it has appropriate rigidity, excellent heat insulation and waterproof properties, and has a corrugated shape, so it has excellent elasticity and cushioning properties. It has been further strengthened.
かＳろ特性を保有せしめるために、波型の谷部３の厚ミ
カ０．３ｍｍ以上、波型の頂部４と谷部３との差が１．
Ｏｍｒｒｒ以上、山のピッチが２〜１５間であることが
重要である。In order to maintain the curvature characteristics, the thickness of the troughs 3 of the corrugations should be at least 0.3 mm, and the difference between the tops 4 and troughs 3 of the corrugations should be 1.5 mm or more.
More than Omrrr, it is important that the pitch of the mountains is between 2 and 15.
即ち、谷部３の厚みが０．３ｍｍより薄いとシートが弱
く、谷部３から破損するおそれが強い。That is, if the thickness of the troughs 3 is thinner than 0.3 mm, the sheet will be weak and there is a strong possibility that it will break from the troughs 3.
また、波型の頂部４と谷部３との差が１．０ｍｍ以下、
まｆこは山のピッチが２〜１５ｍｍの範囲外の場合には
波型形状を設けた上記の特有の効果が充分発揮されない
ので好ましくない。Further, the difference between the crest 4 and the trough 3 of the waveform is 1.0 mm or less,
If the pitch of the ridges is outside the range of 2 to 15 mm, the above-mentioned unique effect of providing the wavy shape will not be sufficiently exhibited, which is not preferable.
シートの厚みは、頂部４と谷部３との差、および山のピ
ッチの程度によって異なり、一般に約１．３〜ｌＱｍｍ
、特に２〜５關のものが好適である。The thickness of the sheet varies depending on the difference between the top 4 and the trough 3 and the pitch of the peaks, and is generally about 1.3 to 1Qmm.
In particular, those with 2 to 5 angles are suitable.
押出機によって押出成形された発泡シートは、一般に押
出方向に延伸せられており、従って押出方向に裂は易い
性質を有している。A foamed sheet extruded by an extruder is generally stretched in the direction of extrusion, and therefore tends to tear easily in the direction of extrusion.
ところが、本考案の包装用シートにおいて、押出方向と
直角方向に波型が形成せられていると、密度の高い谷部
３が押出方向と直角方向に形成せられるので、押出方向
に裂は易い性質が著しく改善せられ１強靭なシートどな
る。However, in the packaging sheet of the present invention, if the corrugations are formed in the direction perpendicular to the extrusion direction, the dense valley portions 3 are formed in the direction perpendicular to the extrusion direction, so that it is easy to tear in the extrusion direction. The properties have been significantly improved, resulting in a strong sheet.
本考案の包装用シート１は上記の通り多くの効果を有し
ており、優れた包装用シートとして広く利用することが
できろ。The packaging sheet 1 of the present invention has many effects as described above, and can be widely used as an excellent packaging sheet.
本考案の包装用シー）・１は波型の横方向即ち谷部３に
沿って彎曲し易いので円筒状に捲回し易い。Since the wrapping sheet of the present invention can be easily curved in the lateral direction of the wave shape, that is, along the troughs 3, it is easy to wind it into a cylindrical shape.
従って円筒状容器の内装用として使用できる他、本考案
の包装用シートの両側端部を接合してそのま又円筒状容
器として各種物品を包装することもできる。Therefore, in addition to being usable as an interior material for cylindrical containers, the packaging sheet of the present invention can also be used as a cylindrical container to package various articles by joining the opposite ends of the packaging sheet.
更に、底面が平板状であるので、この面に印刷を施すこ
とができ。Furthermore, since the bottom surface is flat, printing can be applied to this surface.
別の印刷紙を貼着する必要がないのでその工程が省略で
き、極めて経済的である。Since there is no need to attach another printing paper, that step can be omitted, making it extremely economical.
図面は本考案の包装用シートを例示するもので。
第１図は斜視図、第２図は一部拡大横断面図である。
図面中の主な符号は次の通りである。１・・・・・・包
装用シート、２・・・・・・底面、３・・・・・・谷部
。
４・・・・・・頂部、５・・・・・・山部。The drawings illustrate the packaging sheet of the present invention. FIG. 1 is a perspective view, and FIG. 2 is a partially enlarged cross-sectional view. The main symbols in the drawings are as follows. 1... Packaging sheet, 2... Bottom, 3... Valley. 4...Top, 5...Mountain.
Claims (1)
を有し、該波型が発泡シートの押出方向と直角方向に形
成され、波型の頂部が低密度であり、谷部が高密度であ
るポリスチレン系発泡シート製包装用シート。 ２、波型の谷部の厚みが０．３間以上、波型の頂部と谷
部との差が１．０ｍｍ以上および山のピッチが２〜１５
間である第１項記載の包装用シート。 ３、ポリスチレン系樹脂発泡シートがスチレン、または
、スチレンを５０重量多以上含有するスチレン共重合体
または混合樹脂の発泡シートである第１項記載の包装用
シート。1. The bottom surface is flat, and the surface has many parallel corrugations, and the corrugations are formed in a direction perpendicular to the extrusion direction of the foam sheet, and the tops of the corrugations have a low density and the troughs have a high density. Packaging sheet made of polystyrene foam sheet with a certain density. 2. The thickness of the trough of the wave is 0.3 mm or more, the difference between the top and trough of the wave is 1.0 mm or more, and the pitch of the ridges is 2 to 15 mm.
The packaging sheet according to item 1, which is between. 3. The packaging sheet according to item 1, wherein the polystyrene resin foam sheet is a foam sheet of styrene, or a styrene copolymer or mixed resin containing 50 or more weights of styrene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977037002U JPS589892Y2 (en) | 1977-03-25 | 1977-03-25 | packaging sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977037002U JPS589892Y2 (en) | 1977-03-25 | 1977-03-25 | packaging sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53131966U JPS53131966U (en) | 1978-10-19 |
| JPS589892Y2 true JPS589892Y2 (en) | 1983-02-23 |
Family
ID=28899244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977037002U Expired JPS589892Y2 (en) | 1977-03-25 | 1977-03-25 | packaging sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS589892Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4945970A (en) * | 1972-09-08 | 1974-05-02 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5295780U (en) * | 1976-01-14 | 1977-07-18 |
-
1977
- 1977-03-25 JP JP1977037002U patent/JPS589892Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4945970A (en) * | 1972-09-08 | 1974-05-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53131966U (en) | 1978-10-19 |
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