JP2003300295A - Laminated sheet molded body - Google Patents
Laminated sheet molded bodyInfo
- Publication number
- JP2003300295A JP2003300295A JP2002104903A JP2002104903A JP2003300295A JP 2003300295 A JP2003300295 A JP 2003300295A JP 2002104903 A JP2002104903 A JP 2002104903A JP 2002104903 A JP2002104903 A JP 2002104903A JP 2003300295 A JP2003300295 A JP 2003300295A
- Authority
- JP
- Japan
- Prior art keywords
- laminated sheet
- base material
- base
- coating material
- sheet
- 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
Links
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】この発明は、厚紙シートの基
材と被覆材との積層シートをプレスして成形した容器、
緩衝材、仕切材等の成形体に関するものである。
【０００２】
【従来の技術】従来、食品等の容器として、厚手の紙シ
ートに薄手のプラスチックフィルム等を全面的に接着し
て、ラミネートされた積層シートを形成し、この積層シ
ートをプレスして、トレー状に成形した積層シート成形
体が使用されている。
【０００３】
【発明が解決しようとする課題】しかしながら、上記の
ような成形体は、廃棄に際し、基材と被覆材とを分離で
きないため、リサイクルに出すことができず、焼却や埋
め立て等の処分をせざるを得ないという問題がある。
【０００４】そこで、この発明は、基材と被覆材とを簡
単に分離でき、リサイクルの回収に出すことのできる積
層シート成形体を提供しようとするものである。
【０００５】
【課題を解決するための手段】上記課題を解決するた
め、この発明は、厚手の紙シートから成る基材に薄手の
シートを被覆材として積層し、この積層シートをプレス
して成形した積層シート成形体において、プレスに際
し、湾曲部の内側に生じた基材の皺に被覆材が入り込む
ようにしたのである。
【０００６】このように、湾曲部の内側において、基材
の皺に被覆材を入り込ませると、基材と被覆材とを接着
しなくても一体化させることができ、これらは簡単に分
離することができるので、紙製の基材をリサイクルに出
すことができる。
【０００７】
【発明の実施の形態】この発明の第１実施形態を図１乃
至図５に基づいて説明する。
【０００８】図１に示すように、この成形体は、ピザの
宅配に使用する容器であり、図２に示すように、基材１
に被覆材２を重ねた積層シートをプレス加工して、身３
及び蓋４が押成壁５の周囲にフランジ６を有するトレー
状に成形され、これらのフランジ６には、ロック片７及
びロック穴８がそれぞれ形成されている。
【０００９】ここで、積層シートの基材１には、比較的
剛性が大きい段ボール等の厚手の紙シートが使用され、
被覆材２には、不織布、プラスチックフィルム、金属箔
等の薄手のシートが使用される。基材１と被覆材２と
は、単に重ね合わせただけでもよいが、軽く点接着して
おいてもよい。
【００１０】そして、このような積層シートを、図３に
示すように、下型Ｌと上型Ｕの間に挟んでプレスする
と、図４に示すように、湾曲部の内側では、基材１の皺
９に被覆材２が入り込み、基材１と被覆材２とは、接着
しなくても一体化する。
【００１１】このため、身３及び蓋４をそれぞれ多数積
み上げて保管しておき、使用時に一枚ずつ取り出して
も、基材１と被覆材２とが剥がれることがなく、ピザの
包装作業を能率よく行うことができる。
【００１２】そして、図１に示すように、身３にピザを
収納して、蓋４を身３に被せると、基材１が被覆材２に
より、油分や水蒸気から保護され、また、従来の積層シ
ートをプレスした場合のように、湾曲部で被覆材２に割
れが生じることもないので、湾曲部における油等の染み
出しも防止される。
【００１３】一方、この容器を廃棄する際には、例えば
身３について、図５に示すように、基材１と被覆材２と
を簡単に分離することができるので、油分や調味料が付
着した被覆材２のみを焼却等の処理がされるごみに出
し、紙製の基材１は、汚れのない状態で、リサイクルに
出すことができる。
【００１４】次に、この発明の第２実施形態を図６乃至
図１０に基づいて説明する。
【００１５】図６に示すように、この成形体は、ゼリー
や水ようかんのカップＣを箱詰めする際に使用する緩衝
材であり、基材２１に被覆材２２を重ねた積層シートを
プレス加工することにより、カップＣに対応した複数の
凹所２３を形成したものとされている。
【００１６】この緩衝材の製造に際しては、まず、基材
２１となる段ボールシートを打ち抜いて、図７に示すよ
うなブランクを形成する。このブランクでは、上面板２
４の周縁各辺に脚板２５が連設され、上面板２４を形成
する部分ごとに、非連続的に線状の貫通する切目を入れ
て、四枚の折曲片２６が形成されている。
【００１７】次に、この基材２１に、不織布、織布、化
粧紙等の薄手のシートを被覆材２２として積層する。こ
のとき、下方へ折り曲げる脚板２５の部分等において、
基材２１と被覆材２２とを、接着剤で軽く点接着してお
くとよい。
【００１８】そして、この積層シートを、図８に示すよ
うに、下型Ｌと上型Ｕの間に挟んでプレスすると、折曲
片２６が下方へ折り曲げられて凹所２３が形成され、折
曲片２６の先端部が湾曲して、図９に示すように、基材
２１の皺２７に被覆材２２が入り込むので、基材２１と
被覆材２２とは接着しなくても一体化する。
【００１９】このような緩衝材を用いて、商品のカップ
Ｃを包装すると、基材２１が直接露出せず、かつ、基材
２１に被覆材２２が一体化しているので、美粧性に優れ
た包装を容易に行うことができる。
【００２０】また、この緩衝材を廃棄する際には、図１
０に示すように、基材２１と被覆材２２とを簡単に分離
することができるので、被覆材２２のみを焼却等の処理
がされるごみに出し、紙製の基材２１は、リサイクルに
出すことができる。
【００２１】なお、上記のように、複数の凹所２３を同
時に形成するプレス加工に際し、被覆材２２が複数の凹
所２３に跨っている場合には、被覆材２２の材料として
伸縮性の大きなものを用いなければ、引張力で被覆材２
２が断裂する恐れがある。
【００２２】しかし、被覆材２２が各凹所２３ごとに分
割されている場合には、各凹所２３の部分で被覆材２２
に作用する引張力が小さいので、比較的破れやすい化粧
紙等を使用することもできる。
【００２３】
【発明の効果】以上のように、この発明に係る積層シー
ト成形体では、プレスにより形成される湾曲部の内側に
おいて、基材の皺に被覆材を入り込ませることとしたの
で、基材と被覆材とを接着しなくても一体化させること
ができ、これらは簡単に分離してリサイクルに出すこと
ができるので、資源の有効利用を図ることができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container formed by pressing a laminated sheet of a base material of a cardboard sheet and a covering material,
The present invention relates to a molded article such as a cushioning material and a partition material. 2. Description of the Related Art Conventionally, as a container for food or the like, a thin plastic film or the like is completely adhered to a thick paper sheet to form a laminated sheet, and the laminated sheet is pressed. In addition, a laminated sheet molded article formed in a tray shape is used. [0003] However, the above-mentioned molded article cannot be recycled because the base material and the covering material cannot be separated at the time of disposal, and cannot be disposed of by incineration or landfill. There is a problem that must be done. Accordingly, an object of the present invention is to provide a laminated sheet molded article that can easily separate a base material and a coating material, and can be recycled. [0005] In order to solve the above-mentioned problems, the present invention comprises laminating a thin sheet as a covering material on a base material composed of a thick paper sheet, and pressing the laminated sheet to form the laminated sheet. In the formed laminated sheet molded body, the coating material enters into the wrinkles of the base material generated inside the curved portion during pressing. As described above, when the coating material is inserted into the wrinkles of the base material inside the curved portion, the base material and the coating material can be integrated without bonding, and these can be easily separated. Therefore, the paper base material can be recycled. A first embodiment of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, this molded product is a container used for home delivery of pizza, and as shown in FIG.
The laminated sheet in which the covering material 2 is stacked on the
The lid 4 is formed in a tray shape having a flange 6 around the pressing wall 5, and a lock piece 7 and a lock hole 8 are formed in these flanges 6. Here, as the base material 1 of the laminated sheet, a thick paper sheet such as a cardboard having relatively high rigidity is used.
As the coating material 2, a thin sheet such as a nonwoven fabric, a plastic film, or a metal foil is used. The base material 1 and the coating material 2 may be simply overlapped, or may be lightly adhered. When such a laminated sheet is pressed between the lower mold L and the upper mold U as shown in FIG. 3, the base material 1 is formed inside the curved portion as shown in FIG. The coating material 2 enters the wrinkles 9 of the base material, and the base material 1 and the coating material 2 are integrated without bonding. For this reason, even if a large number of the bodies 3 and the lids 4 are stacked and stored, and the sheets are taken out one by one at the time of use, the base material 1 and the covering material 2 do not peel off, and the pizza packaging operation can be performed efficiently Can do well. As shown in FIG. 1, when the pizza is stored in the body 3 and the lid 4 is put on the body 3, the base material 1 is protected from oil and water vapor by the covering material 2, As in the case where the laminated sheet is pressed, the coating material 2 does not crack at the curved portion, so that seepage of oil or the like at the curved portion is also prevented. On the other hand, when the container is discarded, for example, the body 3 can be easily separated from the base material 1 and the coating material 2 as shown in FIG. Only the coated material 2 is discharged to refuse to be treated by incineration or the like, and the paper substrate 1 can be recycled without contamination. Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 6, this molded article is a cushioning material used when packing a jelly or water canister cup C in a box, and is formed by pressing a laminated sheet in which a coating material 22 is superimposed on a base material 21. Thus, a plurality of recesses 23 corresponding to the cup C are formed. In manufacturing the cushioning material, first, a corrugated cardboard sheet serving as the base material 21 is punched out to form a blank as shown in FIG. In this blank, the top plate 2
The leg plate 25 is continuously provided on each side of the peripheral edge of 4, and four bent pieces 26 are formed by making discontinuous linear cuts in each of the portions forming the upper surface plate 24. Next, a thin sheet such as a nonwoven fabric, a woven fabric, or a decorative paper is laminated as a coating material 22 on the base material 21. At this time, in the portion of the leg plate 25 that is bent downward,
It is preferable that the base material 21 and the coating material 22 are lightly adhered to each other with an adhesive. When the laminated sheet is pressed between the lower mold L and the upper mold U as shown in FIG. 8, the bent piece 26 is bent downward to form the concave portion 23, and As shown in FIG. 9, the tip of the bent piece 26 is curved, and the coating material 22 enters the wrinkles 27 of the base material 21, so that the base material 21 and the coating material 22 are integrated without bonding. When a cup C of a product is wrapped with such a cushioning material, the base material 21 is not directly exposed and the coating material 22 is integrated with the base material 21. Packaging can be easily performed. When discarding the cushioning material, FIG.
As shown in FIG. 0, the base material 21 and the coating material 22 can be easily separated, so that only the coating material 22 is disposed of as garbage that is subjected to a treatment such as incineration, and the paper base material 21 is recycled. Can be put out. As described above, when the covering material 22 straddles the plurality of recesses 23 during the press working for simultaneously forming the plurality of recesses 23, the material of the covering material 22 has large elasticity. If no material is used, the coating material 2
2 may be torn. However, when the covering material 22 is divided for each of the recesses 23, the covering material 22
Since the tensile force acting on the paper is small, decorative paper or the like which is relatively easily broken can be used. As described above, in the laminated sheet molded article according to the present invention, the coating material is inserted into the wrinkles of the base material inside the curved portion formed by the press. The material and the covering material can be integrated without bonding, and these can be easily separated and recycled for effective utilization of resources.
【図面の簡単な説明】 【図１】この発明の第１実施形態に係る容器の斜視図 【図２】同上の積層シートの断面図 【図３】同上のプレス状態を示す断面図 【図４】同上の湾曲部の皺の状態を示す拡大断面図 【図５】同上の基材と被覆材の分離状態を示す斜視図 【図６】この発明の第２実施形態に係る緩衝材の斜視図 【図７】同上の基材のブランクを示す図 【図８】同上の積層シートのプレス状態を示す断面図 【図９】同上の湾曲部の皺の状態を示す拡大断面図 【図１０】同上の基材と被覆材の分離状態を示す斜視図 【符号の説明】 １ 基材 ２ 被覆材 ３ 身 ４ 蓋 ５ 押成壁 ６ フランジ ７ ロック片 ８ ロック穴 ９ 皺 ２１ 基材 ２２ 被覆材 ２３ 凹所 ２４ 上面板 ２５ 脚板 ２６ 折曲片 ２７ 皺[Brief description of the drawings] FIG. 1 is a perspective view of a container according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the same laminated sheet. FIG. 3 is a sectional view showing the pressed state of the above. FIG. 4 is an enlarged cross-sectional view showing a state of wrinkles in the bending portion according to the first embodiment; FIG. 5 is a perspective view showing a separated state of the base material and the covering material in the same. FIG. 6 is a perspective view of a cushioning member according to a second embodiment of the present invention. FIG. 7 is a diagram showing a blank of a base material of the above. FIG. 8 is a cross-sectional view showing a pressed state of the laminated sheet of the above. FIG. 9 is an enlarged cross-sectional view showing a state of wrinkles in the bending portion according to the third embodiment. FIG. 10 is a perspective view showing a separated state of the base material and the covering material in the same. [Explanation of symbols] 1 Substrate 2 Coating material 3 body 4 Lid 5 Pressed wall 6 flange 7 Lock pieces 8 Lock hole 9 wrinkles 21 Substrate 22 Coating material 23 recess 24 Top plate 25 footboard 26 bent pieces 27 wrinkles
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山原 栄司 大阪市福島区大開４丁目１番186号 レン ゴー株式会社中央研究所内 (72)発明者 大村 恵子 大阪市福島区大開４丁目１番186号 レン ゴー株式会社中央研究所内 (72)発明者 永長 朗 大阪市福島区大開４丁目１番186号 レン ゴー株式会社中央研究所内 Ｆターム(参考） 4F100 AB33 AK01 AT00B BA02 BA32 DB19 DG10A DG15 GB16 JK11 JL14 JL16 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Eiji Yamahara Ren, 4-1-1, Okai, Fukushima-ku, Osaka-shi Go Co., Ltd. Central Research Laboratory (72) Inventor Keiko Omura Ren, 4-1-1, Okai, Fukushima-ku, Osaka-shi Go Co., Ltd. Central Research Laboratory (72) Inventor Akira Nagacho Ren, 4-1-1, Okai, Fukushima-ku, Osaka-shi Go Co., Ltd. Central Research Laboratory F term (reference) 4F100 AB33 AK01 AT00B BA02 BA32 DB19 DG10A DG15 GB16 JK11 JL14 JL16
Claims (1)
ートを被覆材として積層し、この積層シートをプレスし
て成形した積層シート成形体において、プレスに際し、
湾曲部の内側に生じた基材の皺に被覆材が入り込むよう
にしたことを特徴とする積層シート成形体。Claims: 1. A laminated sheet formed by laminating a thin sheet as a coating material on a base material made of a thick paper sheet and pressing the laminated sheet to form
A laminated sheet molded article characterized in that a coating material enters into wrinkles of a substrate generated inside a curved portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002104903A JP4010851B2 (en) | 2002-04-08 | 2002-04-08 | Laminated sheet molded body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002104903A JP4010851B2 (en) | 2002-04-08 | 2002-04-08 | Laminated sheet molded body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003300295A true JP2003300295A (en) | 2003-10-21 |
| JP4010851B2 JP4010851B2 (en) | 2007-11-21 |
Family
ID=29389862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002104903A Expired - Fee Related JP4010851B2 (en) | 2002-04-08 | 2002-04-08 | Laminated sheet molded body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4010851B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007145393A (en) * | 2005-11-30 | 2007-06-14 | Dainippon Printing Co Ltd | Drawn paper container |
| JP2008087819A (en) * | 2006-10-02 | 2008-04-17 | Dainippon Printing Co Ltd | Drawn paper container and its manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0719139U (en) * | 1993-09-08 | 1995-04-07 | 住友ベークライト株式会社 | Recycling container |
| JPH1045164A (en) * | 1996-08-02 | 1998-02-17 | Toppan Printing Co Ltd | Easily degradable composite container |
| JPH10218235A (en) * | 1997-02-06 | 1998-08-18 | Dainippon Printing Co Ltd | Compound container and its manufacture |
| JP2000225662A (en) * | 1998-07-24 | 2000-08-15 | Yokota:Kk | Easy recycling container |
| JP2001096648A (en) * | 1999-09-29 | 2001-04-10 | Dainippon Printing Co Ltd | Paper tray |
| JP3084534U (en) * | 2001-09-05 | 2002-03-29 | 株式会社秀英 | Food packaging containers |
| JP2002096813A (en) * | 2000-09-19 | 2002-04-02 | Nk Kogyo Kk | Pulp container |
-
2002
- 2002-04-08 JP JP2002104903A patent/JP4010851B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0719139U (en) * | 1993-09-08 | 1995-04-07 | 住友ベークライト株式会社 | Recycling container |
| JPH1045164A (en) * | 1996-08-02 | 1998-02-17 | Toppan Printing Co Ltd | Easily degradable composite container |
| JPH10218235A (en) * | 1997-02-06 | 1998-08-18 | Dainippon Printing Co Ltd | Compound container and its manufacture |
| JP2000225662A (en) * | 1998-07-24 | 2000-08-15 | Yokota:Kk | Easy recycling container |
| JP2001096648A (en) * | 1999-09-29 | 2001-04-10 | Dainippon Printing Co Ltd | Paper tray |
| JP2002096813A (en) * | 2000-09-19 | 2002-04-02 | Nk Kogyo Kk | Pulp container |
| JP3084534U (en) * | 2001-09-05 | 2002-03-29 | 株式会社秀英 | Food packaging containers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007145393A (en) * | 2005-11-30 | 2007-06-14 | Dainippon Printing Co Ltd | Drawn paper container |
| JP2008087819A (en) * | 2006-10-02 | 2008-04-17 | Dainippon Printing Co Ltd | Drawn paper container and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4010851B2 (en) | 2007-11-21 |
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