JP2009248305A - Laminated sheet - Google Patents

Laminated sheet Download PDF

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JP2009248305A
JP2009248305A JP2008094562A JP2008094562A JP2009248305A JP 2009248305 A JP2009248305 A JP 2009248305A JP 2008094562 A JP2008094562 A JP 2008094562A JP 2008094562 A JP2008094562 A JP 2008094562A JP 2009248305 A JP2009248305 A JP 2009248305A
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layer
base layer
sheet
laminated sheet
top layer
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JP5391436B2 (en
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Hiromichi Noguchi
弘道 野口
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SHIROGANE KASEI KK
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SHIROGANE KASEI KK
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Abstract

<P>PROBLEM TO BE SOLVED: To improve the manufacturing efficiency of a product using a laminated sheet. <P>SOLUTION: The laminated sheet comprises: a base layer 12; a top layer 14; and a foaming layer 18 formed by heating a sheet 16 containing foaming agent held between the base layer 12 and the top layer 14. The base layer, the foaming layer and the top layer can be heat-cut by a high-frequency welder. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、書籍の装丁、バインダー、手帳若しくはダイアリの表紙、カバン又は袋等に使用される積層シートに関する。   The present invention relates to a laminated sheet used for book bindings, binders, notebooks or diary covers, bags or bags.

従来、書籍の装丁、バインダー、手帳若しくはダイアリの表紙、カバン又は袋等に使用される積層シートは、次のように形成される。すなわち、まず、レーヨン、ナイロン、ポリエチレン、アクリル製の布あるいは不織布から成る基層と、高周波ウエルダーにて焼切り可能であるとともに、表面に文字や模様などの印刷が施されていたり、シボが形成されていたり、処理剤が塗られたりと様々な加工が施されたトップ層と、基層とトップ層との間に挟まれてこれらと熱圧着された発泡剤入りシートと、から成るシート状の部材を形成する。次に、シート状の部材を熱処理し、発泡剤入りシートを発泡させる。これにより、基層とトップ層との間に発泡層が挟まれた構造の発泡シート部材が形成される。この後、発泡層から基層を切除することにより積層シートが形成される。このように形成された積層シートは、ウエルダーで所定の形状に切断され、発泡層の切断面には接着剤で紙や布などが張り付けられ、書籍の装丁や手帳の表紙などに使用される。   Conventionally, laminated sheets used for book bindings, binders, notebooks or diary covers, bags or bags are formed as follows. That is, first, a base layer made of rayon, nylon, polyethylene, acrylic cloth or non-woven fabric and a high-frequency welder can be burned out, and the surface is printed with letters or patterns, or wrinkles are formed. A sheet-like member comprising: a top layer that has been subjected to various processing such as being coated with a treatment agent, and a foam-containing sheet that is sandwiched between the base layer and the top layer and thermocompression-bonded with the top layer Form. Next, the sheet-like member is heat-treated to foam the foam-containing sheet. Thereby, a foamed sheet member having a structure in which the foamed layer is sandwiched between the base layer and the top layer is formed. Thereafter, a laminated sheet is formed by cutting the base layer from the foamed layer. The laminated sheet thus formed is cut into a predetermined shape by a welder, and paper or cloth is attached to the cut surface of the foamed layer with an adhesive, which is used for book covers, notebook covers, and the like.

しかしながら、従来の積層シートでは、発泡剤入りシートを加熱し、発泡層を形成する段階までは基層が必要であるが、基層は布あるいは不織布から成るため、ウエルダーで切断することができない。このため、ウエルダーで焼切り成形する場合は、積層シートをウエルダーで焼切る前に、発泡シート部材から基層を面方向に切除しなければならない。しかしながら、基層を切除してしまうと、強度が弱くなり、特に、応力が集中しやすい曲げ部分に経年的に細かい割れ目が発生するといった課題がある。   However, in the conventional laminated sheet, a base layer is required until the foaming agent-containing sheet is heated to form a foamed layer. However, since the base layer is made of cloth or non-woven fabric, it cannot be cut with a welder. For this reason, when performing burn-out molding with a welder, the base layer must be cut in the surface direction from the foamed sheet member before the laminated sheet is burned with the welder. However, if the base layer is cut off, the strength is weakened, and there is a problem that fine cracks are generated over time particularly in a bent portion where stress tends to concentrate.

一方、基層を切除しないで製品を製造する場合は、積層シート同士の接合に際しては、縫製することにより製造しなければならず、製造効率が悪いという課題がある。   On the other hand, when a product is manufactured without cutting off the base layer, the laminated sheets must be manufactured by sewing, and there is a problem that the manufacturing efficiency is poor.

本発明は、かかる課題に鑑みなされたもので、積層シートを用いた製品の強度及び耐久性を保持し、製造効率を向上させることができる積層シートを提供することをその目的とする。   This invention is made | formed in view of this subject, and it aims at providing the laminated sheet which can maintain the intensity | strength and durability of the product using a laminated sheet, and can improve manufacturing efficiency.

上記目的を達成するために、本発明のうち請求項１記載の発明は、基層と、トップ層と、前記基層及び前記トップ層に挟まれた発泡剤入りシートを加熱して形成される発泡層と、から成り、前記基層、発泡層及びトップ層は、高周波ウエルダーにて焼切り可能であることを特徴とする。   In order to achieve the above object, the invention according to claim 1 of the present invention is a foam layer formed by heating a base layer, a top layer, and a sheet containing a foaming agent sandwiched between the base layer and the top layer. The base layer, the foam layer and the top layer can be burned out with a high frequency welder.

請求項２記載の発明は、前記基層が、高周波ウエルダーにて焼切り可能な不織布または熱硬化性樹脂であることを特徴とする。   The invention according to claim 2 is characterized in that the base layer is a non-woven fabric or a thermosetting resin that can be burned out by a high-frequency welder.

請求項１記載の発明によれば、発泡層及びトップ層のみならず、基層を高周波ウエルダーにて焼切り可能としたことにより、積層シートに基層を付けたまま高周波ウエルダーにて処理することができるため、発泡層から基層を切除する必要がない。これにより、強度を保持しつつ、積層シートを用いた各種製品の製造効率を向上させることができる。   According to the first aspect of the present invention, not only the foam layer and the top layer but also the base layer can be burned out by the high frequency welder, so that the laminated sheet can be processed by the high frequency welder with the base layer attached. Therefore, it is not necessary to excise the base layer from the foam layer. Thereby, manufacturing efficiency of various products using a lamination sheet can be improved, maintaining intensity.

請求項２記載の発明によれば、基層を、高周波ウエルダーにて焼切り可能な不織布又は熱硬化性樹脂とすることにより、基層を高周波ウエルダーで焼切ることができる。   According to invention of Claim 2, a base layer can be burned off with a high frequency welder by making the base layer into the nonwoven fabric or thermosetting resin which can be burned out with a high frequency welder.

以下、図面を用いて本発明の実施の形態を説明する。
図１（ａ）及び（ｂ）は本発明の実施形態に係る積層シートの断面図であり、（ａ）は発泡前の状態を、（ｂ）は発泡後の状態をそれぞれ示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1A and 1B are cross-sectional views of a laminated sheet according to an embodiment of the present invention, in which FIG. 1A shows a state before foaming, and FIG. 1B shows a state after foaming.

積層シート１０は、合成皮革として使用することができるもので、基層１２と、トップ層１４と、基層１２とトップ層１４とに挟まれた発泡剤入りシート１６を加熱して形成される発泡層１８と、から成る。基層１２は、高周波ウエルダーにて焼切り可能な不織布や、ポリ塩化ビニールなどの熱可塑性樹脂やポリウレタンなどの熱硬化性樹脂から成り、その厚みは０．１〜０．３ｍｍ、好適には０．２ｍｍの厚みを有する。また、トップ層１４はポリ塩化ビニールより成り、その厚みは０．１〜０．３ｍｍ、好適には０．１５ｍｍの厚みを有する。また、発泡剤入りシート１６は、ポリ塩化ビニールに発泡剤を混合したものから成り、０．２５〜０．４ｍｍの厚みを有し、発泡して発泡層１８が形成された後には、発泡層１８の厚みは０．６〜０．９ｍｍとなる。三層の積層シート１０としての仕上がりの厚みは、０．８〜１．５ｍｍとなる。   The laminated sheet 10 can be used as a synthetic leather, and is a foamed layer formed by heating a base layer 12, a top layer 14, and a foamed sheet 16 sandwiched between the base layer 12 and the top layer 14. 18 and. The base layer 12 is made of a non-woven fabric that can be burned out by a high-frequency welder, a thermoplastic resin such as polyvinyl chloride, or a thermosetting resin such as polyurethane, and has a thickness of 0.1 to 0.3 mm, preferably 0. It has a thickness of 2 mm. The top layer 14 is made of polyvinyl chloride and has a thickness of 0.1 to 0.3 mm, preferably 0.15 mm. Moreover, the sheet | seat 16 with a foaming agent consists of what mixed the foaming agent in the polyvinyl chloride, has a thickness of 0.25-0.4mm, and after the foaming layer 18 was formed by foaming, a foaming layer is formed. The thickness of 18 is 0.6 to 0.9 mm. The finished thickness of the three-layer laminated sheet 10 is 0.8 to 1.5 mm.

次に、図２〜図４に基づいて、本発明の積層シート１０の製造方法について説明する。
図２は、発泡剤入りシート１６の製造工程を示す側面図であり、図３は、トップ層１４と基層１２及び発泡剤入りシート１６とを圧着する工程を示す側面図であり、図４は、基層１２、発泡剤入りシート１６及びトップ層１４の三層構造を成したシートを発泡させる工程を示す側面図である。 Next, based on FIGS. 2-4, the manufacturing method of the lamination sheet 10 of this invention is demonstrated.
2 is a side view showing a manufacturing process of the foam-containing sheet 16, FIG. 3 is a side view showing a process of pressure-bonding the top layer 14, the base layer 12, and the foam-containing sheet 16, and FIG. FIG. 4 is a side view showing a step of foaming a sheet having a three-layer structure of a base layer 12, a foaming agent-containing sheet 16 and a top layer 14.

（１）まず、発泡剤入りシート１６を製造するために、図２に示す装置のミキサー２０の上部からポリ塩化ビニール樹脂、可塑剤、安定剤等と発泡剤とを投入して混合し、ミキサー２０の下部から混合物１６’を排出する。ミキサー２０の下部には基層１２が巻付けられたローラ２３が配設されており、ローラ２３から巻き出される基層１２上に混合物１６’が載置されながら、コンベヤベルト２１で搬送される。基層１２上の混合物１６’は、コンベヤベルト２１に沿って設けられるローラ２２によって均一な厚みのシート状に伸ばされていくことにより、基層１２に張り合わされ、基層１２と一体と成ってローラ２６に巻き取られる。   (1) First, in order to manufacture the foam-containing sheet 16, a polyvinyl chloride resin, a plasticizer, a stabilizer, and the like and a foaming agent are introduced and mixed from above the mixer 20 of the apparatus shown in FIG. The mixture 16 ′ is discharged from the lower part of 20. A roller 23 around which the base layer 12 is wound is disposed below the mixer 20, and the mixture 16 ′ is carried on the base layer 12 unwound from the roller 23 and is conveyed by the conveyor belt 21. The mixture 16 ′ on the base layer 12 is stretched into a sheet having a uniform thickness by a roller 22 provided along the conveyor belt 21, so that the mixture 16 ′ is bonded to the base layer 12 and integrated with the base layer 12 to the roller 26. It is wound up.

（２）次に、トップ層１４に印刷、シボ加工及び表面処理剤などを施し、トップ層１４の表面を加工する。   (2) Next, the top layer 14 is subjected to printing, embossing, a surface treatment agent, and the like to process the surface of the top layer 14.

（３）次に、図３に示すように、ローラ２４に巻かれたトップ層１４を上部に、また、ローラ２６に巻かれた基層１２及び発泡剤入りシート１６を下部にそれぞれ配置し、発泡剤入りシート１６上にトップ層１４が載置されるように、ローラ２４及び２６からそれぞれ巻き出し、圧着ローラ２８によって、トップ層１４と発泡剤入りシート１６とを熱圧着していく。   (3) Next, as shown in FIG. 3, the top layer 14 wound around the roller 24 is disposed at the top, and the base layer 12 and the foamed sheet 16 wound around the roller 26 are disposed at the bottom, respectively. The top layer 14 is unwound from the rollers 24 and 26 so that the top layer 14 is placed on the agent-containing sheet 16, and the top layer 14 and the foaming agent-containing sheet 16 are thermocompression bonded by the pressure roller 28.

（４）最後に、図４に示すように、基層１２、発泡剤入りシート１６及びトップ層１４が圧着された積層シート１０を、コンベヤ３１で搬送し、加熱オーブン３０に通していく。積層シート１０は、加熱オーブン３０を通過中に１９０〜２４０℃で加熱され、発泡剤入りシート１６が発泡して発泡層１８が形成されていく。   (4) Finally, as shown in FIG. 4, the laminated sheet 10 on which the base layer 12, the foaming agent-containing sheet 16 and the top layer 14 are pressure-bonded is conveyed by a conveyor 31 and passed through a heating oven 30. The laminated sheet 10 is heated at 190 to 240 ° C. while passing through the heating oven 30, and the foamed sheet 16 is foamed to form the foamed layer 18.

以上のようにして構成された積層シートは、高周波ウエルダーにて焼き切り可能であるために、製品の形状に合わせて高周波ウエルダーで切り抜くことができる。切り抜いた後の製品は、基層１２を含んでいるために強度及び耐久性に優れたものとすることができる。また、積層シート同士を重ね合わせて接合する場合には、高周波ウエルダーで溶着することができるために作業性が良く、製造効率を向上させることができる。   Since the laminated sheet configured as described above can be burned off with a high frequency welder, it can be cut out with a high frequency welder according to the shape of the product. Since the product after cutting out includes the base layer 12, the product can be excellent in strength and durability. Further, when the laminated sheets are overlapped and joined, the workability is good because the high-frequency welder can be used for welding, and the manufacturing efficiency can be improved.

以上の積層シートは、書籍の装丁、バインダー、手帳若しくはダイアリの表紙、カバンまたは袋等に使用することができる。   The above laminated sheet can be used for book bindings, binders, notebooks or diary covers, bags or bags.

（ａ）は本発明の実施形態に係る積層シートの発泡前の状態を示す断面図、（ｂ）はその発泡後の状態を示す断面図である。(A) is sectional drawing which shows the state before foaming of the lamination sheet which concerns on embodiment of this invention, (b) is sectional drawing which shows the state after the foaming. 発泡剤入りシートの製造工程を示す側面図である。It is a side view which shows the manufacturing process of a sheet | seat with a foaming agent. トップ層と基層及び発泡剤入りシートとを圧着する工程を示す側面図である。It is a side view which shows the process of crimping | bonding a top layer, a base layer, and a foam containing sheet | seat. 基層、発泡剤入りシート及びトップ層の三層構造を成した積層シートを発泡させる工程を示す側面図である。It is a side view which shows the process of foaming the laminated sheet which comprised the base layer, the sheet | seat containing a foaming agent, and the top layer.

符号の説明Explanation of symbols

１０ 積層シート
１２ 基層
１４ トップ層
１６ 発泡剤入りシート
１８ 発泡層 DESCRIPTION OF SYMBOLS 10 Laminated sheet 12 Base layer 14 Top layer 16 Foamed sheet 18 Foam layer

Claims (2)

基層と、トップ層と、前記基層及び前記トップ層に挟まれた発泡剤入りシートを加熱して形成される発泡層と、から成り、前記基層、発泡層及びトップ層は、高周波ウエルダーにて焼切り可能であることを特徴とする積層シート。   A base layer, a top layer, and a foam layer formed by heating the base layer and a sheet containing a foaming agent sandwiched between the top layer. The base layer, the foam layer and the top layer are baked by a high-frequency welder. A laminated sheet that can be cut. 前記基層は、高周波ウエルダーにて焼切り可能な不織布または熱硬化性樹脂であることを特徴とする請求項１記載の積層シート。   The laminated sheet according to claim 1, wherein the base layer is a non-woven fabric or a thermosetting resin that can be burned out by a high-frequency welder.
JP2008094562A 2008-04-01 2008-04-01 Products using laminated sheets Active JP5391436B2 (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61225379A (en) * 1985-03-28 1986-10-07 Toyo Cloth Kk Production of synthetic leather melt-cuttable with high-frequency welder
JPS6392730U (en) * 1986-12-09 1988-06-15
JPH01173017U (en) * 1988-05-27 1989-12-07
JPH02286225A (en) * 1989-04-26 1990-11-26 Toyo Cloth Kk Production of skinned expandable pad
JPH04344240A (en) * 1991-05-20 1992-11-30 Asahi Corp Forming method of designed member having three-dimentional pattern
JP2000198394A (en) * 1999-01-11 2000-07-18 Idemitsu Petrochem Co Ltd Flame resistant interior sheet and sunvisor for vehicle
JP2004292675A (en) * 2003-03-27 2004-10-21 Dynic Corp Biodegradable soft foam sheet
JP2004292674A (en) * 2003-03-27 2004-10-21 Dynic Corp Biodegradable soft foam sheet
JP2005044770A (en) * 2003-07-25 2005-02-17 Nippon Sanmou Senshoku Kk Portable static eliminator

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61225379A (en) * 1985-03-28 1986-10-07 Toyo Cloth Kk Production of synthetic leather melt-cuttable with high-frequency welder
JPS6392730U (en) * 1986-12-09 1988-06-15
JPH01173017U (en) * 1988-05-27 1989-12-07
JPH02286225A (en) * 1989-04-26 1990-11-26 Toyo Cloth Kk Production of skinned expandable pad
JPH04344240A (en) * 1991-05-20 1992-11-30 Asahi Corp Forming method of designed member having three-dimentional pattern
JP2000198394A (en) * 1999-01-11 2000-07-18 Idemitsu Petrochem Co Ltd Flame resistant interior sheet and sunvisor for vehicle
JP2004292675A (en) * 2003-03-27 2004-10-21 Dynic Corp Biodegradable soft foam sheet
JP2004292674A (en) * 2003-03-27 2004-10-21 Dynic Corp Biodegradable soft foam sheet
JP2005044770A (en) * 2003-07-25 2005-02-17 Nippon Sanmou Senshoku Kk Portable static eliminator

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