JP3902701B2

JP3902701B2 - A book using a flexible material on the back, a cover material used for the book, and a bookbinding method

Info

Publication number: JP3902701B2
Application number: JP36631497A
Authority: JP
Inventors: 英吉井上
Original assignee: Dai Nippon Printing Co Ltd
Current assignee: Dai Nippon Printing Co Ltd
Priority date: 1997-12-24
Filing date: 1997-12-24
Publication date: 2007-04-11
Anticipated expiration: 2017-12-24
Also published as: JPH11180068A

Description

【０００１】
【発明の属する技術分野】
本発明は、並製本ラインで製本することの可能な且つ本文を容易に大きく開くことができる本に関し、またその本の製本に用いる表紙材並びにその本を製本する方法にも関する。
【０００２】
【従来の技術】
従来より、雑誌、電話帳、マニュアル本等には、低コストで製造しうる並製本（仮製本とも言う）が使用されている。ここで、並製本とは、並製本ラインにおいて走行中の本文（刷本を丁合したもの。その前後面に見返しを付ける場合もあり、本明細書ではその見返しも本文の一部とする）に、通常、１枚の紙で形成された表紙材（最終的な本の表紙よりは大きいサイズのもの）を同期走行させながら供給し、その表紙材で本文をくるみ、その後、背を除いた三方（天地及び小口）を化粧裁ちするという製本工程で作成したものであり、綴じ方式としては、無線綴じ、アジロ綴じ、かがり仮製等が使用されている。ところが、無線綴じ、アジロ綴じ、かがり仮製等で製本された並製本は、本文の背を接着剤によって、表紙の背の部分（背表紙）に貼り付けた構造となっており、糊付けした背の部分が固いために本文を大きく広げた状態にするのが難しいという欠点があった。
【０００３】
一方、本を大きく開くことの可能な本構造としては、上製本が知られている。この上製本は、本文の背を薄布等の柔軟な補強布で一体に接着固定し、その本文を表紙でくるむに際し、本文の背の補強布を、表紙の背表紙に接着せず、背表紙から離れて自由に屈曲しうるように構成したものである。
【０００４】
【発明が解決しようとする課題】
ところが、上製本は、構造が複雑なため、上製本ラインでの生産速度が並製本ラインに比べてはるかに遅く、このため、並製本よりもはるかにコストがかかるという問題があった。
【０００５】
本発明はかかる問題点に鑑みてなされたもので、並製本ラインで低コストで製本することができるにもかかわらず、本を容易に大きく開くことの可能な本を提供することを目的とする。また、本発明はその本の製本に用いる表紙材、並びに製本方法を提供することも目的とする。
【０００６】
【課題を解決するための手段】
本発明の本は、上製本と同様な開き易さを確保しながら、コストダウンを図るため、柔軟材からなる背表紙の両側に表表紙と裏表紙を接続した構成の表紙を用い、その表紙の背表紙を本文の背に貼り付けた構成としたものである。この構成の本は、背表紙が単に柔軟材の一重構造であるので、構造が簡単であり、且つ、容易に大きく開くことができる利点を有している。
【０００７】
ところで、上記した本発明の本に用いている表紙、即ち、柔軟材からなる背表紙の両側に表表紙と裏表紙を接続した構成の表紙は、単にその表紙のみでは、表表紙と裏表紙の間に柔軟材があるため形状が安定せず、並製本ラインで取り扱うことが困難である。そこで、本発明では、並製本ラインで取り扱うことができ且つ並製本ライン内での断裁工程で不要部分を切断除去することにより、上記構成の表紙とすることの可能な表紙材も提供する。
【０００８】
すなわち、本発明の表紙材は、並製本ラインでの製本に使用するのに適した大きいサイズの表紙用紙の、本文の背に対応する背領域の、少なくとも本文の背の両側縁に沿った位置に位置するようにスリットを形成し、その表紙用紙の背領域に、背表紙を形成するための柔軟材を貼り付けたものである。この構成の表紙材は、表紙用紙に形成されている表表紙と裏表紙となる部分が、その表紙用紙の背領域の両端（スリットの両端のところ）でつながっているため、単に柔軟材のみで連結した場合に比べて強度が大きく、並製本ラインで取り扱うことのできる強度を備えており、従って、並製本ラインで支障なく本文をくるむことができ、しかも、その後の工程で化粧断ちした時に、表紙用紙の背領域の両端のつながっている部分が切り離され、除去されるので、背表紙としては柔軟材のみが残り、背に柔軟材を用いた本を製本できる。
【０００９】
本発明の製本方法は、上記構成の表紙材を並製本ラインに供給し、製本するものであり、これにより、本発明の本を製本できる。
【００１０】
【発明の実施の形態】
本発明の本は、柔軟材からなる背表紙の両側に表表紙と裏表紙を接続した構成の表紙と、その表紙でくるんだ本文を備え、前記背表紙を本文の背に接着し、更に、天側、地側及び小口側における表表紙、裏表紙の端縁位置を本文の端縁位置と同一としたものである。この構成の本は、本文の背が柔軟な背表紙で構成されるため、容易に大きく開くことが可能であり、また並製本ラインで製本可能であるため、低コストで製本可能である。
【００１１】
ここで、本発明において、背表紙を形成するために使用する柔軟材は、クロス等の柔軟な且つ必要な強度を持ったものであれば任意であるが、通常、印刷、箔押し等が可能なものが使用される。本文の前後面に配置される表表紙及び裏表紙は、並製本に使用されるソフトカバーが使用される。本文の前後面に配置する表表紙及び裏表紙は、本文の前後面の紙葉（本文が見返しを有する場合にはその見返し、見返しを有しない場合には本文の最外層の紙葉）に対して貼り付けても、貼り付けなくてもよいが、見栄えを良くするために、のど部と小口部の少なくとも一方に貼り付けておくことが好ましい。
【００１２】
本発明の本において、前記背表紙の、表表紙と裏表紙の端縁間に位置している部分の長さを本文の厚みよりも大きくし、前記本文の背の角部を背表紙のみで覆う構成とする。この構成としたことで、製本工程において、背表紙を本文の背に貼り付ける際に、背表紙の位置が多少ずれたとしても、表表紙又は裏表紙の背側の端縁が作成された本の背の面から後方に突出するとか背に回り込んで見栄えを悪くするということが回避される。
【００１３】
本発明の第一の実施の形態になる表紙材は、最終的に製造される本の表紙よりもサイズの大きい表紙用紙であって、その表紙用紙で本文をくるんだ際にその本文の背の両側縁に沿った位置に位置するように且つ最終的に製造される本の天地サイズよりも長い一対のスリットを形成した表紙用紙と、その表紙用紙に、前記一対のスリット及びその間の領域を覆うように、且つ前記一対のスリットの外側で貼り付けられた柔軟材とを有する。
【００１４】
上記表紙材を用いた本発明の製本方法は、上記表紙材を並製本ラインに、表紙用紙に貼り付けた柔軟材が内側になるように供給し、その並製本ラインにおいて、前記表紙材で本文をくるみ、その本文の背を前記表紙用紙に貼り付けている柔軟材に貼り合わせ、その後、本文及びそれをくるんだ表紙材の背を除いた三方を所定サイズに断裁し、表紙用紙の一対のスリット間に残っていた部分を表紙用紙から切り離すという工程を有するものであり、これにより、表紙用紙の背領域の一対のスリット間に残っていた部分を表紙用紙から除去でき、背に柔軟材を用いた本を製造することができる。
【００１５】
また、本発明の第二の実施の形態の表紙材は、最終的に製造される本の表紙よりもサイズの大きい表紙用紙であって、その表紙用紙で本文をくるんだ際にその本文の背に対応する位置に、本文の背の幅以上の幅で且つ最終的に製造される本の天地サイズよりも長いスリットを形成した表紙用紙と、その表紙用紙に、前記スリットを覆うように且つ前記スリットの両側で貼り付けられた柔軟材とを有する構成である。この構成の表紙材も、前記した表紙材と同様に、並製本ラインに供給し、その並製本ラインにおいて、その表紙材で本文をくるみ、その本文の背を前記表紙用紙に貼り付けている柔軟材に貼り合わせ、その後、本文及びそれをくるんだ表紙材の背を除いた三方を所定サイズに断裁するという工程を有するものであり、これにより、背に柔軟材を用いた本を製造することができる。なお、この製本方法の場合には、並製本ラインに供給される表紙材は、柔軟材が表紙用紙の内側に位置する状態、外側に位置する状態のいずれとしてもよい。
【００１６】
上記した並製本ラインでの製本において、表紙材で本文をくるむ前に、その表紙材の表表紙と裏表紙の、のど部と小口の少なくとも一方に接着剤を付与することができ、これにより、表表紙と裏表紙のそれぞれののど部と小口の少なくとも一方を、それに面する本文の前後面の紙葉に貼り合わせることができる。
【００１７】
【実施例】
以下、図面に示す本発明の実施例を説明する。
図１は、本発明の第一の実施例による本１を閉じた状態で示す概略斜視図、図２はその本１を開いた状態で示す概略断面図である。この本１は、前後面に見返し２ａを備えた本文２と、その本文２をくるんだ表紙１０とからなる並製本（仮製本）であるが、その表紙１０は、通常の並製本に用いている表紙とは異なり、本文２の背に貼り付けられた柔軟材からなる背表紙３と、その両側に接続され、本文２の前後面に配置された表表紙４及び裏表紙４からなる。背表紙３に用いられる柔軟材は、クロス等の柔軟なものであり、通常、印刷、箔押し等が可能なものが使用される。背表紙３は本文２の背の厚さよりも広い幅を有しており、本文２の背に対応する部分は接着剤７によって本文２の背に貼り付けられ、両側の側縁部分３ａ、３ａは本文２の前後面に接着剤７Ａによって貼り付けられている。また、その側縁部分３ａ、３ａの外側にはそれぞれ、表表紙４及び裏表紙４が接着剤５によって貼り付けられている。更に、表表紙４及び裏表紙４とそれぞれに面する見返し２ａは、のどのり８、小口のり９によっても互いに貼り付けられている。
【００１８】
この本１は後述するように並製本ラインによって製本される並製本であり、その並製本ラインにおいて三方断裁されるため、表表紙、裏表紙４の天側、地側及び小口側における端縁の位置は本文２と同一となっている。一方、表表紙４、裏表紙４の背側の端縁４ａの位置は、本文２の背よりも少し内側となっている。換言すれば、背表紙３の、表表紙４と裏表紙４の端縁４ａ、４ａ間に位置している部分の長さは本文２の厚みよりも大きくなっており、本文２の背の角部を背表紙３のみで覆っている。このようにすると、表紙１０を本文２に取り付ける際、背表紙３の位置が多少ずれても、表表紙４或いは裏表紙４の端縁４ａが本１の背の面を越えて外側に突出するとか、背にまわり込むということがなく、本の見栄えが悪くなることを防止できる利点が得られる。
【００１９】
上記構成の本１は、背表紙３を柔軟材によって構成しているので、図２に示すように、背表紙３を湾曲させることができ、本文２を容易に大きく開くことができる。また、表表紙４及び裏表紙４は、のど部及び小口がのどのり８、小口のり９によって見返し２ａに貼り付けられているので、表表紙４及び裏表紙４の裏面が露出されることはなく、表表紙４又は裏表紙４を開いた状態では上製本のような外観を与え、見栄えが良い。なお、多少本の見栄えが悪くなることを許容しうる場合には、のどのり８、小口のり９の一方若しくは双方を省略することも可能である。また、見返し２ａを省略することも可能である。
【００２０】
次に、図１、図２に示す本１の製本方法並びにその製本に使用する表紙材を説明する。まず、図３（ａ）に示す表紙用紙１１とクロス等の柔軟材１２を作成する。この表紙用紙１１は、並製本ラインでの製本に使用するのに適したサイズのもの（従って、天地サイズＨは、本１の天地サイズよりも大きい）であり、中央に本の背に対応する背領域１１ａを有すると共にその両側に、本の表表紙４、裏表紙４となる部分１１ｂ、１１ｂ（後述するスリット１４と二点鎖線１５で囲まれた領域）を有しており、その部分１１ｂ、１１ｂには必要な印刷を施している。また、表紙用紙１１の背領域１１ａには、その表紙用紙１１でくるむ本文の背の両側縁に沿った位置に、最終的に製造される本の天地サイズよりもわずかに長いが表紙用紙１１の天地サイズよりは短い一対のスリット１４、１４を形成しており、その両端に連結部１１ｃを残している。表紙用紙１１の部分１１ｂ、１１ｂの一対のスリット１４、１４に面する端縁１１ｄは、表表紙及び裏表紙の端縁４ａ（図１参照）となる部分であり、その端縁１１ｄ、１１ｄ間の距離Ｄ並びにスリット１４、１４の幅については後述する。
【００２１】
図３において、表紙用紙１１の周辺近傍の二点鎖線１５は、並製本ラインにおける三方断裁時に断裁する位置を示しており、一対のスリット１４、１４の両端は、二点鎖線１５で示す断裁位置を横切るように形成されている。柔軟材１２は、図１に示す本１に設けている背表紙３を形成するものであり、その表面には、必要な印刷、箔押し等の加工を施している。また、柔軟材１２の幅Ｗは、一対のスリット１４、１４の外側の端縁１１ｄ、１１ｄ間の距離Ｄよりも更に大きく設定されている。
【００２２】
次に、表紙用紙１１の裏面で、且つ一対のスリット１４、１４の外側に接着剤５を塗布し、柔軟材１２を貼り付ける。これにより、図３（ｂ）に示す形態の表紙材１７が形成される。ここで、前記した一対のスリット１４、１４の外側の端縁１１ｄ、１１ｄ間の距離Ｄは、本文２の厚さｔ（図５、図６参照）よりも大きく設定されており、このため、図６（ａ）に示すように、この表紙材１７で本文２をくるんだ時、端縁１１ｄが本文２の背から少し引っ込んだ位置となり、表紙用紙１１の本文２に対する取付位置に多少の誤差が生じても、端縁１１ｄが本の背の面から外側に突出するとか、背の上に回り込むといったことを防止できる。端縁１１ｄを本文２の背から引っ込める量ｅ〔＝（Ｄ−ｔ）／２〕としては、１〜１０ｍｍ程度とすることが好ましい。なお、表紙材１７で本文をくるむ際の位置精度が高い場合、或いは本の背に端縁１１ｄが多少回り込んでいても支障を生じない場合等には、端縁１１ｄを本文２の背から引っ込ませる必要はなく、従って、距離Ｄを本文２の厚さｔに等しくしてもよい。
【００２３】
一方、図３において、スリット１４、１４は、そのスリット１４、１４で挟まれた部分１１ａａを一対のスリット１４、１４の外側の部分１１ｂ、１１ｂから切り離すために設けたものであり、その幅は０（単に切り込みを入れただけのもの）としてもよいが、一対のスリット１４、１４の外側に接着剤５を塗布する際に、その接着剤が一対のスリット１４、１４で挟まれた部分１１ａａに付着しないようにするため、適当な幅を有していることが好ましい。一方、スリット１４の幅はあまり大きくすると表紙用紙１１の背領域１１ａ、連結部１１ｃの強度が小さくなるので、小さい方が好ましい。これらを考慮すると、スリット１４の幅としては、２〜１５ｍｍ程度とすることが好ましい。また、スリット１４の幅の選定に当たっては、表紙材１７で本文２をくるむ際に多少の位置誤差が生じても、一対のスリット１４、１４で挟まれた部分１１ａａが、図６（ａ）に示すように、本文２の背の両端角部から少し内側に位置するか、或いは図６（ｂ）に示すように、本文２の背の両端角部を完全に覆うことができるように定めることが好ましい。このように定めておくと、並製本ラインにおけるプレス工程において、本の背及びその背に隣接した前後面をプレスする際に、角部に部分１１ａａが中途はんぱに引っ掛かってプレスの邪魔をするということがなく、角部をきれいに整形できる利点が得られる。
【００２４】
次に、図３（ｂ）に示す形態の表紙材１７を、従来より使用されている無線綴じ方式或いはアジロ綴じ方式の並製本ラインに供給し、従来と同様な方法で製本する。すなわち、無線綴じ方式の場合には、並製本ライン内の丁合工程において複数の折丁を丁合して作成した本文２Ａ（図４参照）を、ミーリング（切り削り）、ラフニング（荒び出し）の各工程を通過させた後、表紙材１７でくるむくるみ工程を行う。このくるみ工程では、図４に示すように、表紙材１７を柔軟材１２が内側（本文２Ａに面する側）となる状態で供給し、走行中のその表紙材１７にのどのり８及び小口のり９を塗布し、一方、走行中の本文２Ａには、その背にホットメルト等の接着剤７を塗布すると共に前後面ののど部にも接着剤７Ａを塗布し、その後、表紙材１７と本文２Ａを同期して走行させながら、表紙材１７の裏面の柔軟材１２に本文２Ａの背を押し当て、次いで、図５（ａ）、（ｂ）、並びに図６（ａ）に示すように、表紙用紙１１の表表紙、裏表紙となる部分を折り曲げ、本文２Ａの側面に重ね合わせる。その後、図５（ｂ）、図６（ａ）に示す形態の本文２Ａ及びそれをくるんだ表紙材１７をプレス工程に送り、本の背の部分及び前後面の背に隣接した部分をプレスして接合を確実とすると共に背の部分を整形する。その後、断裁工程において、本の背を除いた３辺を二点鎖線１５で示す位置で断裁し、周縁の部分を除去する。また、表紙用紙１１の一対のスリット１４、１４で挟まれた部分１１ａａが、表紙用紙１１から切り離されることとなるので、これも除去する。以上の工程により、図１、図２に示す構成の本、即ち、本文２の背に柔軟材で構成される背表紙３を貼り付けた構成の本１が製造される。
【００２５】
また、アジロ綴じ方式の場合には、アジロ加工済の折丁を並製本ラインに供給し、それを丁合して本文２Ａを作成し、くるみ、プレス、断裁の各工程を順次行う。これにより、本１を製造できる。なお、並製本ラインにおける製本時において、本文２Ａの背に用いる接着剤７としては、柔軟剤型ＥＶＡ系をはじめゴム系、ＰＵＲ等の各種ホットメルト或いは各種エマルジョンが使用可能である。
【００２６】
以上のように、表紙材１７を作成し、これを並製本ラインに供給することにより、並製本ラインによって図１、図２に示す構成の本を製本でき、高速で、低コストで製本できる。なお、上記実施例では、並製本ラインにおいて折丁を丁合して本文２Ａを作成する場合を説明したが、本文２Ａの作成は必ずしも並製本ライン上で行う場合に限らず、別の丁合装置によって丁合し、必要なら糸かがりを行った後、並製本ラインに供給するように変更してもよい。また、上記実施例では、のどのり８、小口のり９で表紙４と見返し２ａとを貼り合わせているが、これらは必要なければ省略してもよい。
【００２７】
更に、上記実施例では、表紙用紙１１として、背領域１１ａに一対のスリット１４、１４を形成したものを用いているが、この代わりに、図７（ａ）に示すように、本文の背に対応する位置に本文の背の幅以上の幅Ｄ′で、且つ最終的に製造される本の天地サイズよりもわずかに長いスリット１４Ａを形成した表紙用紙１１Ａを用いることも可能である。ここで、スリット１４Ａの幅Ｄ′も、図３に示す表紙用紙１１の一対のスリット１４、１４の外側の端縁間距離Ｄと同様に設定される。図７に示す表紙用紙１１Ａの場合にも、表紙用紙１１Ａの裏面に、クロス等の柔軟材１２を貼り付けて、図７（ｂ）に示す構成の表紙材１７Ａを作成し、これを並製本ラインに供給し、図４、図５で表紙材１７について説明した場合と同様に、この表紙材１７Ａで本文２Ａをくるんだ後、断裁工程を経て、図１に示す本を製造することができる。なお、この場合には、表紙材１７Ａで本文２Ａをくるんだ後の断裁工程で、表紙用紙１１Ａの二点鎖線１５で示す位置を断裁して、両側の表表紙、裏表紙となる部分１１ｂ、１１ｂを接続している中央の部分を切り離すが、この際、本の背の部分には大きいスリット１４Ａがあるのみで、図５（ｂ）に示す実施例のように、一対のスリット１４の間に表紙用紙の一部１１ａａが存在するという構成ではないので、表紙用紙の背の部分を除去する必要がないという利点が得られる。また、表紙材１７Ａでは、柔軟材１２の本の背となる部分がスリット１４Ａによって露出しているので、この状態で箔押し加工や印刷が可能であり、従って、柔軟材１２に対する箔押し加工や印刷は、柔軟材１２を表紙用紙１１Ａに貼り付ける前に限らず、貼り付けた後に行ってもよい。
【００２８】
更に、図７に示す構成の表紙材１７Ａでは、本文をくるんで断裁した後、表紙用紙１１Ａの背の部分を除去する必要がないので、表紙用紙１１Ａに貼り付けた柔軟材１２を外側にして製本することもできる。図８はその場合の実施例を示すもので、並製本ラインでのくるみ工程を示している。図８（ａ）において、表紙材１７Ｂは、中央に大きいスリット１４Ａを備えた表紙用紙１１Ａの表面側（外面側）に柔軟材１２を貼り付けた構成となっている。並製本ライン内で走行中の表紙材１７Ｂに対して、その裏面（柔軟材１２を貼った面とは反対側の面）にのどのり８及び小口のり９を塗布し、一方、走行中の本文２Ａには、その背の部分にホットメルト等の接着剤７、７Ａを塗布し、その後、表紙材１７Ｂと本文２Ａを同期して走行させながら、表紙材１７Ｂの中央部に本文２Ａの背を押し当て、スリット１４Ａを通してその外側の柔軟材１２に本文２Ａの背を接着させ、次いで、表紙用紙１１Ａの両側の表表紙、裏表紙となる部分を本文２Ａの前後面に重なるように折り曲げ、図８（ｂ）に示す状態の本とする。その後、プレス工程で、本の背の部分及びそれに隣接した前後面の部分をプレスして、接着剤７、７Ａによる接合を確実とすると共に本の背の部分を整形する。その後、断裁工程において、本の背を除いた３辺を二点鎖線１５で示す位置で断裁する。以上の工程により、図９、図１０に示す形態の、すなわち本文２の背に、表紙１０Ａの柔軟材で構成される背表紙３を貼り付け、本文２の前後面に、表表紙４、裏表紙４を配置した本１Ａが製造される。ただし、この本１Ａは、図１、図２に示す本１とは異なり、表表紙４、裏表紙４の外側に背表紙３の側縁部分３ａが貼り付けられた構成となっている。
【００２９】
この構成の本１Ａも、背表紙３が柔軟材のみによって構成されるので、図１０に示すように大きく開くことができると共に、表表紙４、裏表紙４の裏面に見返し２ａをのどのり８、小口のり９で貼り付けているので、見栄えが良いという利点を有している。また、並製本ラインで製本できるので、高速での製本が可能であり、安価に製本できるという利点も有している。
【００３０】
【発明の効果】
以上に説明したように、本発明の本は、本文の背に柔軟材からなる背表紙を貼り付けた構成のものであるので、本文を容易に大きく開くことができ、しかも、並製本ラインで製本可能であるので、高速で低コストで製本できる等の効果を有している。更に、本発明の本は、背表紙の、表表紙と裏表紙の端縁間に位置している部分の長さを本文の厚みよりも大きくし、前記本文の背の角部を背表紙のみで覆う構成としているので、表紙を本文に取り付ける際、背表紙の位置が多少ずれても、表表紙或いは裏表紙の端縁が本の背の面を越えて外側に突出するとか、背にまわり込むということがなく、本の見栄えが悪くなることを防止できるという効果も有している。
【００３１】
また、本発明の表紙材は、並製本ラインに供給して取り扱うことができると共に上記した本発明の本を製本でき、また、本発明の製本方法はその表紙材を用いて並製本ラインで製本するものであるので、本文の背に柔軟材からなる背表紙を貼り付けた構成の本を高速で低コストで製本できるという効果を有している。
【図面の簡単な説明】
【図１】本発明の一実施例による本を示す概略斜視図
【図２】図１の本を開いた状態で示す概略断面図
【図３】（ａ）は図１に示す本の製造に使用する表紙用紙と柔軟材の１例を示す概略斜視図、（ｂ）はその表紙用紙に柔軟材を貼り付けて形成した、本発明の一実施例による表紙材の概略斜視図
【図４】本発明の一実施例における並製本ラインのくるみ工程において、本文２Ａを表紙材１７でくるむ前の状態を示す概略斜視図
【図５】（ａ）は本文２Ａを表紙材１７でくるむ途中の状態を示す概略斜視図、（ｂ）はくるみ終わった状態を示す概略斜視図
【図６】（ａ）は、図５（ｂ）に示す本の背の部分の概略断面図
（ｂ）は、（ａ）に示す部分の変形例を示す概略断面図
【図７】（ａ）は本発明の他の実施例において使用する表紙用紙と柔軟材の例を示す概略斜視図、（ｂ）はその表紙用紙に柔軟材を貼り付けて形成した、他の実施例による表紙材の概略斜視図
【図８】（ａ）は図７（ｂ）に示す表紙材を用いた場合におけるくるみ工程において、本文２Ａを表紙材１７Ｂでくるむ前の状態を示す概略斜視図、（ｂ）はくるみ終わった状態を示す概略斜視図
【図９】図８に示す実施例によって製本した本の概略斜視図
【図１０】図９に示す本を開いた状態で示す概略断面図
【符号の説明】
１、１Ａ本
２、２Ａ本文
２ａ見返し
３背表紙（柔軟材）
４表表紙、裏表紙
５、７、７Ａ接着剤
８のどのり
９小口のり
１０、１０Ａ表紙
１１、１１Ａ表紙用紙
１１ａ背領域
１１ｂ表表紙又は裏表紙となる部分
１２柔軟材
１４、１４Ａスリット
１５断裁位置を示す線
１７、１７Ａ、１７Ｂ表紙材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a book that can be bound by a normal bookbinding line and can easily open a main body, and also relates to a cover material used for binding the book and a method for binding the book.
[0002]
[Prior art]
Conventionally, ordinary bookbinding (also referred to as temporary bookbinding) that can be manufactured at low cost has been used for magazines, telephone books, manual books, and the like. Here, the average bookbinding refers to the text that is running on the average bookbinding line (a collation of the printed book. The front and back sides of the text may be turned back, and in this specification, the turnback is also part of the text). In general, a cover material made of a single sheet of paper (with a size larger than the cover of the final book) is fed in a synchronized manner, the body is wrapped with the cover material, and then the back is removed. It is created by a bookbinding process in which three sides (upper and lower edges) are trimmed, and as the binding method, wireless binding, azimuth binding, tentative binding, or the like is used. However, ordinary bookbinding, such as wire binding, azimuth binding, and temporary binding, has a structure in which the back of the text is attached to the back part of the cover (back cover) with an adhesive. There is a drawback that it is difficult to make the main body greatly expanded because the part is hard.
[0003]
On the other hand, an upper bookbinding is known as a book structure that can greatly open a book. In this upper bookbinding, the back of the main body is bonded and fixed together with a flexible reinforcing cloth such as a thin cloth, and when the main body is wrapped with the cover, the back reinforcing cloth of the main body is not bonded to the back cover of the cover. It is configured so that it can be bent freely away from the cover.
[0004]
[Problems to be solved by the invention]
However, since the structure of the upper bookbinding is complicated, the production speed of the upper bookbinding line is much slower than that of the normal bookbinding line, and thus there is a problem that the cost is much higher than that of the normal bookbinding line.
[0005]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a book that can be easily opened widely even though it can be bound at a low cost with a normal bookbinding line. . Another object of the present invention is to provide a cover material used for bookbinding and a bookbinding method.
[0006]
[Means for Solving the Problems]
The book of the present invention uses a cover having a structure in which a front cover and a back cover are connected to both sides of a back cover made of a flexible material in order to reduce costs while ensuring ease of opening similar to that of upper bookbinding. The back cover is attached to the back of the text. The book having this configuration has an advantage that the back cover is simply a single structure of a flexible material, and thus the structure is simple and can be easily opened wide.
[0007]
By the way, the cover used in the book of the present invention described above, that is, the cover having a structure in which the front cover and the back cover are connected to both sides of the back cover made of the flexible material, the cover of the front cover and the back cover is simply the cover. Because there is a flexible material between them, the shape is not stable, and it is difficult to handle with a normal bookbinding line. Therefore, the present invention also provides a cover material that can be handled by a normal bookbinding line and can be used as a cover having the above-described structure by cutting and removing unnecessary portions in a cutting process in the normal bookbinding line.
[0008]
That is, the cover material of the present invention is a position of the cover region of a large size suitable for bookbinding on a normal bookbinding line, at least along both side edges of the spine of the back of the back corresponding to the back of the text. A slit is formed so as to be positioned at a position, and a flexible material for forming the spine is pasted on the spine area of the cover paper. In the cover material of this structure, the front and back cover parts formed on the cover paper are connected at both ends of the back area of the cover paper (at both ends of the slit), so only the flexible material is used. Compared to the case where it is connected, the strength is high and it has the strength that can be handled by the average bookbinding line, so the text can be wrapped without any trouble in the normal bookbinding line, and when the makeup is cut off in the subsequent process, Since the connected portions at both ends of the back area of the cover sheet are separated and removed, only the flexible material remains as the back cover, and a book using the flexible material on the back can be bound.
[0009]
In the bookbinding method of the present invention, the cover material having the above-described configuration is supplied to a normal bookbinding line for bookbinding, whereby the book of the present invention can be bound.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The book of the present invention comprises a cover having a structure in which a front cover and a back cover are connected to both sides of a back cover made of a flexible material, and a text wrapped with the cover, and the back cover is bonded to the back of the text, The edge positions of the front cover and the back cover on the top side, the ground side, and the fore edge side are the same as the edge positions of the text. A book having this structure can be easily opened wide because it is made of a flexible back cover, and can be bound at a low cost because it can be bound by a normal bookbinding line.
[0011]
Here, in the present invention, the flexible material used for forming the spine can be arbitrarily selected as long as it has a flexible and necessary strength such as a cloth, etc., but usually can be printed, stamped, etc. Things are used. For the front cover and the back cover arranged on the front and back surfaces of the main body, soft covers used for ordinary bookbinding are used. The front and back covers to be placed on the front and back sides of the main text are for the front and back sheets of the text (if the text has a turnover, the turnover, otherwise the outermost layer of the text) However, in order to improve the appearance, it is preferably pasted on at least one of the throat portion and the fore edge portion.
[0012]
In the book of the present invention, the length of the portion of the spine that is located between the edges of the front cover and the back cover is made larger than the thickness of the main text, and the corner of the spine of the main text is made only of the spine. It is set as the structure covered . With this configuration , when the back cover is pasted on the back of the main text in the bookbinding process, even if the position of the back cover is slightly shifted, the back edge of the front cover or back cover is created. Protruding backward from the back of the back or going around the back and making it look bad is avoided.
[0013]
The cover material according to the first embodiment of the present invention is a cover paper having a size larger than the cover of the book to be finally produced, and when the text is wrapped around the cover paper, A cover sheet in which a pair of slits are formed so as to be positioned along both side edges and longer than the top / bottom size of the book to be finally produced, and the cover sheet covers the pair of slits and the region therebetween. And a flexible material attached outside the pair of slits.
[0014]
In the bookbinding method of the present invention using the cover material, the cover material is supplied to the normal bookbinding line so that the flexible material attached to the cover paper is on the inside. Wrap the back of the text on the flexible material affixed to the cover paper, then cut the three sides except the back of the text and the cover material wrapped around it to a predetermined size, and a pair of cover paper It has the process of separating the part remaining between the slits from the cover sheet, which allows the remaining part between the pair of slits in the spine area of the cover sheet to be removed from the cover sheet, and a flexible material on the back. The book used can be manufactured.
[0015]
The cover material of the second embodiment of the present invention is a cover paper having a size larger than the cover of the book to be finally produced, and when the text is wrapped around the cover paper, A cover sheet formed with a slit that is equal to or larger than the width of the spine of the main body and longer than the top / bottom size of the book to be finally manufactured, and the cover sheet covers the slit and covers the slit It is the structure which has a flexible material affixed on both sides of the slit. The cover material of this configuration is also supplied to the normal bookbinding line, as in the case of the cover material described above, and the text is wrapped around the cover material in the normal bookbinding line, and the back of the text is pasted on the cover paper. It has the process of cutting the three sides except the back of the text and the cover material wrapped around it to a predetermined size, and thereby producing a book using a flexible material on the back Can do. In the case of this bookbinding method, the cover material supplied to the normal bookbinding line may be either in a state where the flexible material is located inside the cover paper or in a state located outside.
[0016]
In bookbinding on the above-mentioned normal bookbinding line, before wrapping the text with the cover material, it is possible to apply an adhesive to at least one of the throat and small edge of the front cover and back cover of the cover material, At least one of the front cover and the back cover, at least one of the throat portion and the fore edge, can be bonded to the front and back sheets of the text facing it.
[0017]
【Example】
Embodiments of the present invention shown in the drawings will be described below.
FIG. 1 is a schematic perspective view showing the book 1 in a closed state according to the first embodiment of the present invention, and FIG. 2 is a schematic sectional view showing the book 1 in an opened state. This book 1 is a parallel bookbinding (temporary bookbinding) composed of a body 2 having a turn 2a on the front and back sides and a cover 10 wrapped around the body 2, but the cover 10 is used for ordinary bookbinding. Unlike the front cover, the back cover 3 is made of a flexible material attached to the back of the main body 2, and the front cover 4 and the back cover 4 are connected to both sides of the back cover 4 and arranged on the front and rear surfaces of the main body 2. The flexible material used for the spine cover 3 is a flexible material such as a cloth, and a material capable of printing, foil pressing, etc. is usually used. The spine cover 3 has a width wider than the spine thickness of the text 2, and a portion corresponding to the spine of the text 2 is attached to the spine of the text 2 with an adhesive 7, and side edge portions 3 a, 3 a on both sides are attached. Is affixed to the front and rear surfaces of the text 2 with an adhesive 7A. Further, a front cover 4 and a back cover 4 are attached to the outside of the side edge portions 3a and 3a by an adhesive 5, respectively. Further, the front cover 4 and the back cover 4 and the facing 2a facing each other are also attached to each other by a throat 8 and a fore edge glue 9.
[0018]
This book 1 is a bookbinding book that is bound by a bookbinding line as will be described later, and is cut in three directions in the bookbinding line, so that the edge of the front cover, the back cover 4 on the top side, the ground side, and the edge side The position is the same as that of the text 2. On the other hand, the position of the edge 4 a on the back side of the front cover 4 and the back cover 4 is slightly inside the back of the body 2. In other words, the length of the portion of the back cover 3 located between the front edges 4a and 4a of the back cover 4 and the back cover 4 is larger than the thickness of the text 2, and the back corner of the text 2 is The part is covered only with the spine 3. In this way, when the cover 10 is attached to the body 2, the edge 4 a of the front cover 4 or the back cover 4 protrudes beyond the back surface of the book 1 even if the position of the spine 3 is slightly shifted. There is an advantage that it is possible to prevent the appearance of the book from being deteriorated without going around the back.
[0019]
In the book 1 having the above-described configuration, the spine cover 3 is made of a flexible material. Therefore, as shown in FIG. 2, the spine cover 3 can be curved, and the text 2 can be easily opened largely. Further, since the front cover 4 and the back cover 4 are pasted to the turn 2a by the throat 8 and the lip 9 and the lip 9 of the lip, the back surfaces of the front cover 4 and the back cover 4 are not exposed. In the state where the front cover 4 or the back cover 4 is opened, an appearance like an upper bookbinding is given and the appearance is good. In addition, when it is possible to allow the appearance of the book to be somewhat deteriorated, one or both of the throat 8 and the edge glue 9 can be omitted. Further, the look-back 2a can be omitted.
[0020]
Next, a bookbinding method of the book 1 shown in FIGS. 1 and 2 and a cover material used for the bookbinding will be described. First, a cover sheet 11 and a flexible material 12 such as a cloth shown in FIG. This cover sheet 11 is of a size suitable for bookbinding on a normal bookbinding line (thus, the top and bottom size H is larger than the top and bottom size of the book 1) and corresponds to the back of the book in the center. It has a spine region 11a, and on both sides thereof, it has portions 11b and 11b (regions surrounded by a slit 14 and a two-dot chain line 15 to be described later) that become the front cover 4 and back cover 4 of the book, and the portions 11b 11b are printed as necessary. Further, the spine area 11a of the cover paper 11 is slightly longer than the top / bottom size of the finally produced book at positions along both side edges of the back of the body of text wrapped with the cover paper 11 but the cover paper 11 A pair of slits 14 and 14 shorter than the top and bottom size are formed, and the connecting portions 11c are left at both ends. An edge 11d facing the pair of slits 14 and 14 of the portions 11b and 11b of the cover sheet 11 is a portion that becomes the edge 4a (see FIG. 1) of the front cover and the back cover, and between the edges 11d and 11d. The distance D and the widths of the slits 14 and 14 will be described later.
[0021]
In FIG. 3, a two-dot chain line 15 near the periphery of the cover sheet 11 indicates a position to be cut at the time of three-way cutting in a normal bookbinding line, and both ends of the pair of slits 14 and 14 are cutting positions indicated by a two-dot chain line 15. It is formed so as to cross. The flexible material 12 forms the spine 3 provided in the book 1 shown in FIG. 1, and the surface is subjected to necessary processing such as printing and foil stamping. The width W of the flexible material 12 is set to be larger than the distance D between the outer edges 11d and 11d of the pair of slits 14 and 14.
[0022]
Next, the adhesive 5 is applied to the back surface of the cover sheet 11 and outside the pair of slits 14 and 14, and the flexible material 12 is attached. Thereby, the cover material 17 having the form shown in FIG. 3B is formed. Here, the distance D between the outer edges 11d and 11d of the pair of slits 14 and 14 is set to be larger than the thickness t (see FIGS. 5 and 6) of the text 2, and therefore, As shown in FIG. 6A, when the body 2 is wrapped with the cover material 17, the edge 11 d is slightly retracted from the back of the body 2, and there is a slight error in the attachment position of the cover paper 11 with respect to the body 2. Even if this occurs, it is possible to prevent the end edge 11d from protruding from the back surface of the book or wrapping around the back. The amount e [= (D−t) / 2] for retracting the edge 11d from the back of the main body 2 is preferably about 1 to 10 mm. In addition, when the position accuracy when wrapping the text with the cover material 17 is high, or when there is no problem even if the edge 11d slightly wraps around the back of the book, the edge 11d is removed from the back of the text 2. It is not necessary to retract, and therefore the distance D may be equal to the thickness t of the body 2.
[0023]
On the other hand, in FIG. 3, the slits 14, 14 are provided to separate the portion 11 aa sandwiched between the slits 14, 14 from the outer portions 11 b, 11 b of the pair of slits 14, 14. It may be 0 (simply cut), but when the adhesive 5 is applied to the outside of the pair of slits 14, 14, the portion 11 aa sandwiched between the pair of slits 14, 14 It is preferable to have an appropriate width so as not to adhere to the surface. On the other hand, if the width of the slit 14 is too large, the strength of the spine region 11a of the cover sheet 11 and the connecting portion 11c becomes small. Considering these, the width of the slit 14 is preferably about 2 to 15 mm. In selecting the width of the slit 14, even if a slight positional error occurs when the body 2 is wrapped with the cover material 17, the portion 11 aa sandwiched between the pair of slits 14 and 14 is shown in FIG. As shown in the figure, it should be positioned slightly inward from the corners of the back of the text 2 or so as to completely cover the corners of the back of the text 2 as shown in FIG. 6 (b). Is preferred. In this way, when pressing the back of the book and the front and back surfaces adjacent to the back in the pressing process in the normal bookbinding line, the corner portion 11aa gets caught in the middle and disturbs the press. The advantage is that the corners can be neatly shaped.
[0024]
Next, the cover material 17 having the form shown in FIG. 3B is supplied to a conventional binding line of a simple binding method or an azimuth binding method that has been used conventionally, and bookbinding is performed in a manner similar to the conventional method. That is, in the case of the perfect binding method, the text 2A (see FIG. 4) created by collating a plurality of signatures in the collating process in the normal bookbinding line is milled (cut) and roughed (roughened). After passing through each process of (), a wrapping process is performed with the cover material 17. In this wrapping process, as shown in FIG. 4, the cover material 17 is supplied in a state in which the flexible material 12 is on the inner side (the side facing the text 2A), and the cover 8 and the small edge 8 are applied to the cover material 17 during traveling. On the other hand, on the traveling body 2A, the adhesive 7 such as hot melt is applied to the back of the body 2A, and the adhesive 7A is applied to the front and rear throats. While the body 2A is running synchronously, the back of the body 2A is pressed against the flexible material 12 on the back surface of the cover material 17, and then, as shown in FIGS. 5 (a), 5 (b), and 6 (a). Then, the front cover and the back cover of the cover sheet 11 are folded and overlapped on the side surface of the text 2A. Thereafter, the text 2A in the form shown in FIGS. 5 (b) and 6 (a) and the cover material 17 wrapped therewith are sent to the pressing process, and the back portion of the book and the portion adjacent to the back of the front and back surfaces are pressed. To secure the joint and shape the back part. Thereafter, in the cutting step, the three sides excluding the back of the book are cut at a position indicated by a two-dot chain line 15 to remove the peripheral portion. Further, since the portion 11aa sandwiched between the pair of slits 14 and 14 of the cover sheet 11 is cut off from the cover sheet 11, this is also removed. 1 and 2, that is, the book 1 having the structure in which the back cover 3 made of a flexible material is pasted on the back of the body 2 is manufactured.
[0025]
Further, in the case of the azimuth binding method, the signatures that have undergone azimuth processing are supplied to the normal bookbinding line, which is collated to create the text 2A, and the steps of walnut, pressing, and cutting are sequentially performed. Thereby, this 1 can be manufactured. As the adhesive 7 used for the back of the main text 2A at the time of bookbinding in the normal bookbinding line, various hot melts such as a softener type EVA system, rubber system, PUR, or various emulsions can be used.
[0026]
As described above, by creating the cover material 17 and supplying it to the average bookbinding line, the book having the configuration shown in FIGS. 1 and 2 can be bound by the average bookbinding line, and bookbinding can be performed at high speed and at low cost. In the above embodiment, the case where the text 2A is created by collating the signatures in the normal bookbinding line has been described. However, the creation of the text 2A is not necessarily performed on the normal bookbinding line, but another collation. It may be changed so as to be fed to the normal bookbinding line after collating with the apparatus and performing threading if necessary. Moreover, in the said Example, although the cover 4 and the turning-back 2a are bonded together by the throat 8 and the edge glue 9, these may be abbreviate | omitted if not required.
[0027]
Further, in the above embodiment, the cover sheet 11 is formed with a pair of slits 14 and 14 formed in the spine region 11a. Instead, as shown in FIG. It is also possible to use a cover sheet 11A in which a slit 14A having a width D ′ equal to or larger than the width of the spine of the main text and slightly longer than the top / bottom size of the finally produced book is formed at the corresponding position. Here, the width D ′ of the slit 14A is set similarly to the distance D between the outer edges of the pair of slits 14 and 14 of the cover sheet 11 shown in FIG. Also in the case of the cover sheet 11A shown in FIG. 7, the cover material 17A having the structure shown in FIG. 7B is created by pasting the flexible material 12 such as a cloth on the back surface of the cover sheet 11A. The book shown in FIG. 1 can be manufactured through the cutting process after the body 2A is wrapped with this cover material 17A, as in the case described for the cover material 17 in FIGS. . In this case, in the cutting process after the body 2A is wrapped with the cover material 17A, the position indicated by the two-dot chain line 15 of the cover paper 11A is cut, and the front cover and back cover portions 11b on both sides are cut. The central part connecting 11b is cut off. At this time, only the large slit 14A is provided in the back part of the book, and the gap between the pair of slits 14 as in the embodiment shown in FIG. In this case, there is an advantage that there is no need to remove the spine portion of the cover sheet. Further, in the cover material 17A, the back portion of the book of the flexible material 12 is exposed by the slit 14A, so that the foil stamping and printing can be performed in this state. , Not only before the flexible material 12 is pasted on the cover sheet 11A but also after the pasting.
[0028]
Further, in the cover material 17A having the configuration shown in FIG. 7, it is not necessary to remove the spine portion of the cover paper 11A after cutting the body, so that the flexible material 12 attached to the cover paper 11A is placed outside. Bookbinding is also possible. FIG. 8 shows an embodiment in that case, and shows a wrapping process in a normal bookbinding line. 8A, the cover material 17B has a configuration in which the flexible material 12 is attached to the front surface side (outer surface side) of the cover paper 11A having a large slit 14A at the center. For the cover material 17B traveling in the normal bookbinding line, the glue 8 and the glue glue 9 are applied to the back surface (the surface opposite to the surface on which the flexible material 12 is pasted). In the body 2A, adhesive 7 or 7A such as hot melt is applied to the back portion of the body 2A, and then the cover material 17B and the body 2A are run synchronously while the back of the body 2A is placed in the center of the cover material 17B. , The back of the body 2A is adhered to the outer flexible material 12 through the slit 14A, and then the front and back cover portions on both sides of the cover sheet 11A are folded so as to overlap the front and back surfaces of the body 2A. The book is in the state shown in FIG. Thereafter, in the pressing step, the back portion of the book and the front and rear surface portions adjacent thereto are pressed to ensure the joining by the adhesives 7 and 7A and to shape the back portion of the book. Thereafter, in the cutting step, the three sides excluding the back of the book are cut at a position indicated by a two-dot chain line 15. 9 and 10, that is, the spine cover 3 made of the flexible material of the cover 10 </ b> A is pasted on the back of the text 2, and the front cover 4 and the back are formed on the front and back surfaces of the text 2. The book 1A on which the cover 4 is arranged is manufactured. However, the book 1A differs from the book 1 shown in FIGS. 1 and 2 in that the side edge portion 3a of the spine cover 3 is attached to the outside of the front cover 4 and the back cover 4.
[0029]
Also in the book 1A having this configuration, since the spine cover 3 is composed only of a flexible material, it can be opened widely as shown in FIG. Since it is affixed with the edge glue 9, it has the advantage that it looks good. In addition, since the bookbinding can be performed by the average bookbinding line, bookbinding at high speed is possible and bookbinding can be performed at low cost.
[0030]
【The invention's effect】
As described above, the book of the present invention has a structure in which a back cover made of a flexible material is pasted on the back of the text, so that the text can be easily opened widely, Since bookbinding is possible, it has the effect of being able to bind at high speed and low cost. Further, in the book of the present invention, the length of the portion of the back cover located between the front cover and the edge of the back cover is made larger than the thickness of the main text, and the corner of the back of the main text is only the back cover. When attaching the cover to the main text, even if the position of the back cover is slightly shifted, the edge of the front cover or back cover may protrude beyond the back of the book This also has the effect of preventing the book from deteriorating.
[0031]
In addition, the cover material of the present invention can be supplied to a normal bookbinding line and handled, and the book of the present invention described above can be bound, and the bookbinding method of the present invention uses the cover material to bind the book in the normal bookbinding line. Therefore, it has an effect that a book having a configuration in which a back cover made of a flexible material is pasted on the back of the text can be bound at high speed and at low cost.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a book according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view showing the book shown in FIG. 1 in an opened state. FIG. 4B is a schematic perspective view showing an example of a cover sheet to be used and a flexible material. FIG. 4B is a schematic perspective view of a cover material according to an embodiment of the present invention formed by attaching the flexible material to the cover sheet. FIG. 5A is a schematic perspective view showing a state before the text 2A is wrapped with the cover material 17 in the wrapping process of the normal bookbinding line in one embodiment of the present invention. FIG. FIG. 6B is a schematic perspective view showing a state where the wrapping is finished. FIG. 6A is a schematic cross-sectional view of the spine portion of the book shown in FIG. FIG. 7 is a schematic cross-sectional view showing a modification of the portion shown in a). FIG. 7A shows a cover sheet used in another embodiment of the present invention. FIG. 8B is a schematic perspective view showing an example of a soft material. FIG. 8B is a schematic perspective view of a cover material according to another embodiment formed by attaching a flexible material to the cover paper. FIG. 9 is a schematic perspective view showing a state before the body 2A is wrapped with the cover material 17B in the case where the cover material shown in FIG. FIG. 10 is a schematic perspective view of the book bound according to the embodiment shown in FIG. 10. FIG. 10 is a schematic cross-sectional view of the book shown in FIG.
1, 1A book 2, 2A text 2a turnover 3 back cover (flexible material)
4 Front cover, back cover 5, 7, 7A Adhesive 8 slot 9 Small edge glue 10, 10A Cover 11, 11A Cover sheet 11a Back region 11b Parts to be the front cover or back cover 12 Flexible material 14, 14A Slit 15 Cutting Line 17, 17A, 17B indicating position cover material

Claims

It has a cover with a structure in which a front cover and a back cover are connected to both sides of a back cover made of a flexible material, and a text wrapped with the cover, and the back cover is bonded to the back of the text. front cover on the side and fore end edge position of the back cover Ri edge located at the same der text, further, of the spine, the length of the portion located between the end edges of the front and back cover A book using a flexible material on the back, characterized in that the thickness is larger than the thickness of the text and the corners of the spine of the text are covered only with the back cover .

The book using a flexible material on the back according to claim 1, wherein the front cover and the back cover and the paper sheets of the main body facing each of the front cover and the back cover are bonded to at least one of the throat and the forehead. .

Cover paper that is larger in size than the cover of the book that will be finally produced, so that when the body is wrapped with the cover paper, it is positioned so as to be located along both side edges of the back of the body. A cover sheet formed with a pair of slits longer than the vertical size of the book to be manufactured, and the cover sheet was pasted on the cover sheet so as to cover the pair of slits and the region between them. A cover material having a soft material .

A cover paper that is larger than the cover of the book that will be finally produced, and the width of the cover is greater than or equal to the width of the back of the text when the text is wrapped around the cover paper. A cover material having a cover paper in which a slit longer than the top / bottom size of a finally manufactured book is formed, and a flexible material attached to the cover paper so as to cover the slit and on both sides of the slit .

The cover material according to claim 3 is supplied to the normal bookbinding line so that the flexible material affixed to the cover paper is inside, and the text is wrapped around the cover material in the normal bookbinding line, and the back of the text Pasted on the flexible material pasted on the cover paper, and then cut the three sides except the back of the body and the cover material wrapped around it to a predetermined size, the part that remained between the pair of slits on the cover paper A bookbinding method using a flexible material on the back, which is characterized by separating the paper from the cover paper .

The cover material according to claim 4 is supplied to a normal bookbinding line, and in the normal bookbinding line, the text is wrapped with the cover material, and the back of the text is attached to the flexible material attached to the cover paper, Then, a bookbinding method using a flexible material on the back, wherein the three sides except the back of the main body and the cover material enclosing it are cut into a predetermined size .

7. The bookbinding method according to claim 5, wherein at the time of bookbinding in the normal bookbinding line, at least one of a throat portion and a fore edge with respect to the front and back covers of the cover material with respect to the paper sheets of the text facing each other. A bookbinding method characterized by being bonded together .