JP2004001790A - Carton for tissue paper with improved opening property - Google Patents

Carton for tissue paper with improved opening property Download PDF

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Publication number
JP2004001790A
JP2004001790A JP2002156913A JP2002156913A JP2004001790A JP 2004001790 A JP2004001790 A JP 2004001790A JP 2002156913 A JP2002156913 A JP 2002156913A JP 2002156913 A JP2002156913 A JP 2002156913A JP 2004001790 A JP2004001790 A JP 2004001790A
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Japan
Prior art keywords
perforation
carton
opening
tissue paper
cut
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Pending
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JP2002156913A
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Japanese (ja)
Inventor
Yoshikazu Tsunekawa
恒川 義和
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New Oji Paper Co Ltd
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Oji Paper Co Ltd
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Priority to JP2002156913A priority Critical patent/JP2004001790A/en
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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a carton for tissue papers with improved opening properties in which when an opening part for taking out the tissue paper is formed, a perforation can be easily cut off by a small force, and the cut surface of the opening part is smooth and has good touch, and when a finger is brought into contact with the end edge part, there exists no possibility of wounding the finger. <P>SOLUTION: The perforation for opening for forming the opening part for taking out the tissue paper is formed on a top face part of the carton for the tissue paper. The perforation for opening consists of an annularly formed inside perforation and an outside perforation formed on the outside in the longitudinal direction of the inside perforation. The carton for the tissue paper with improved opening properties is characterized by having a relation of b≤2a when the thickness of the carton is (a) and the width of the notched line of the perforation is (b). <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、多数枚のティシュペーパーを重畳状態に収納するティシュペーパー用カートンに関するものであり、さらに詳しくは、本発明は、カートンの上面部分に形成されたティシュペーパー取出し用の開口部を形成するためのミシン目を小さな力で容易に切り離すことができ、開口部を開口させた状態で切り口が平滑で手触り感が良く、縁部に指が触ったときに指を傷付けることがない開封性を改善したティシュペーパー用カートンに関するものである。
【0002】
【従来の技術】
従来から、ティシュペーパー用カートンは、その上面部分の所定位置にティシュペーパー取出し用の開口部を形成するために環状の開封用ミシン目を形成し、さらに、開口部となる部分全体を内側から覆うようにスリットを有するポリエチレン等のプラスチックフィルムを窓張りした直方体のカートンが広く使用されている。そして、このようなティシュペーパー用カートンは、使用時にミシン目の両端部の一方又は両方の内側に形成されている指先挿入部に指先を差込んでティシュペーパー取出し用の開口部となる部分を切り離して開口させると、開口部からティシュペーパーを1組ずつ連続的に取出すことができる。
【0003】
このようなティシュペーパー用カートンとしては、特開平8−104378号公報に開示されているように、環状のミシン目に沿ってティシュペーパー取出し用の開口部となる部分を切り離して開口させた際に、開口部周囲の切り口縁の外観と手触りを良くすると共に開口部となる部分の切り離しをスムーズに行えるように、環状のミシン目をそれぞれカット部間隔が狭い内側ミシン目のカット部とこの内側ミシン目の外側に近接した外側ミシン目のカット部とが千鳥状に配置されている二重ミシン目として形成する方法が提案されている。
【0004】
しかしながら、上記のようなミシン目を形成したティシュペーパー用カートンは、ミシン目を切り離した場合に内側及び外側ミシン目のカット部を交互に行き来しながら開封片が切断されて開口部が形成されるが、内側ミシン目のカット部の間隔が狭くなっているため、開口部の縁部には、内側ミシン目のカット部の端と外側ミシン目のカット部の端とを結ぶ直線と内側ミシン目との内角が直角あるいは鋭角に繋がった凹凸部が形成されており、この部分に指が接触した場合に指を傷付けるという事故を起こすことがあった。
【0005】
このような問題点を改善するために、特開2001−219980号公報には、開口部の縁部に、内側ミシン目のカット部の端と外側ミシン目のカット部の端を結ぶ直線と内側ミシン目との内角が鈍角である凹凸部が形成されるようなミシン目を形成したティシュペーパー用カートンが開示されている。このようなミシン目を形成したティシュペーパー用カートンを用いることにより、開口部の縁部で指を傷付ける事故は少なくなったが、まだ十分ではなく、ミシン目の形成方法によっては時として指を傷付ける事故が発生した。
【0006】
【発明が解決しようとする課題】
本発明は、上記従来のティシュペーパー用カートンの有する問題点を克服し、ティシュペーパー取出し用の開口部を形成する場合に切り離しをスムーズに行うことが出来、さらに、開口部の縁部に指が接触した場合に指を傷付けることのないミシン目を形成した開封性を改善したティシュペーパー用カートンを提供するものである。
【0007】
【課題を解決するための手段】
上記従来のティシュペーパー用カートンの有する問題点を解決するための本発明は、以下の各発明を包含する。
【0008】
(1)ティシュペーパーを重畳状態で収容し、その上面部分にティシュペーパー取出し用の開口部を形成するための開封用ミシン目が形成されたティシュペーパー用カートンにおいて、
前記開封用ミシン目は、環状に形成された内側ミシン目と、前記内側ミシン目の外側に形成され、且つ、少なくとも内側ミシン目の長手方向に沿って形成された外側ミシン目とからなり、
前記カートンは、厚さをaとし、前記上面部分の表面における前記ミシン目の切込み線の幅をbとした場合、少なくとも前記内側ミシン目はb≦2aの関係を有することを特徴とする開封性を改善したティシュペーパー用カートン。
【0009】
(2)前記カートンの厚さが0.25〜0.5mmであることを特徴とする(1)項記載の開封性を改善したティシュペーパー用カートン。
【0010】
(3)前記開封用ミシン目の切込み線の幅が0.3〜0.9mmであることを特徴とする(1)項または(2)項記載の開封性を改善したティシュペーパー用カートン。
【0011】
(4)前記開封用ミシン目の切込み線の長さが0.7〜1.2mmであり、隣接する切込み線と切込み線の間の長さが0.7〜1.2mmであることを特徴とする(1)項〜(3)項のいずれかに記載の開封性を改善したティシュペーパー用カートン。
【0012】
(5)前記開封用ミシン目の前記内側ミシン目と前記外側ミシン目の間の長さが0.1〜0.4mmであることを特徴とする(1)項〜(4)項のいずれかに記載の開封性を改善したティシュペーパー用カートン。
【0013】
【発明の実施の形態】
本発明の開封性を改善したティシュペーパー用カートンは、その上面部分にティシュペーパー取出し用の開口部を形成するための開封用ミシン目が形成されており、前記カートンの上面部分の厚さをaとし、前記ミシン目の切込み線の幅をbとした場合に、b≦2aの関係を有する。
このような構成の本発明の開封性を改善したティシュペーパー用カートンは、開口部を形成する場合に切り離しをスムーズに行なうことができ、さらに、開口部の縁に指が接触した場合、指を傷付けることがなく、良好な手触り感を有するものである。
すなわち、ティシュペーパー用カートンに開封用ミシン目を形成する場合、特定の角度を有するカッターにより上面部分を打ち抜いて形成されるが、この際、図3に示すように、カートンに形成される開口部の縁となる部分の断面の角度θが45°未満になると、この部分に指が接触すると指を傷付け易くなることが明らかとなった。
本発明は、このような問題点を改善したものであり、カートンの上面部分の厚さに対するミシン目の切込み線の幅を規定して、開口部の縁となる部分のカートンの断面の角度が45°以上になるようにすることにより、開口部の縁に指が接触した場合、良好な手触り感を有し、指を傷付けることを防止したものである。
【0014】
一般に、開封用ミシン目は、内側ミシン目と外側ミシン目とが千鳥状に配置された二重ミシン目で構成されており、開口部を形成する場合には、カートンが内側ミシン目と外側ミシン目に沿って交互に切り離されて凹凸状の縁を有する開口部が形成されるが、この場合、内側ミシン目の部分は開口部の縁の凸部になるため、指が接触し易くなる。
したがって、本発明においては、少なくとも内側ミシン目を形成する場合に、その切込み線の幅が前述の関係を有するように形成することが好ましい。
【0015】
この場合、カートンの厚さ(図3において符号aで示す)は0.25〜0.5mmであることが好ましい。カートンの厚さが0.25mm未満では、カートンの強度が弱くなり、輸送中あるいは保存中の衝撃などによりカートンが壊れる危険性がある。一方、0.5mmを越えて厚くなると、製函適性が悪くなり好ましくない。
【0016】
また、開封用ミシン目の切込み線の幅(図2において符号bで示す)は0.3〜0.9mmであることが好ましい。切込み線の幅が0.3mm未満では、開口部をミシン目に沿って開封し難くなり、一方、0.9mmを越えて広くなると、開口部の強度が低下し、輸送中あるいは保存中の衝撃などによりミシン目が破れ易くなる。
【0017】
さらに、ミシン目の切込み線の長さ(図2において符号cで示す)が0.7〜1.2mmであり、隣接する切込み線と切込み線の間の長さ(図2において符号dで示す)が0.7〜1.2mmであることが好ましい。切込み線の長さ及び隣接する切込み線の間の長さがこの範囲内にあると、開口部をミシン目に沿って容易かつ綺麗に開封することができる。
切込み線の長さが0.7mm未満になると開封し難くなり、一方、1.2mmを超えて長くなると開口部の強度が低下し、輸送中あるいは保存中の衝撃等によりミシン目が破れ易くなる。
また、隣接する切込み線の間の長さが0.7mm未満になると開口部の強度が低下し、輸送中あるいは保存中の衝撃等によりミシン目が破れ易くなり、一方、1.2mmを越えて長くなると開封し難くなる。
【0018】
また、開封用ミシン目の内側ミシン目と外側ミシン目の間の長さ(図2において符号eで示す)が0.1〜0.4mmであることが好ましい。内側ミシン目と外側ミシン目の間の長さが0.1mm未満になると開口部の強度が低下し、輸送中あるいは保存中の衝撃等によりミシン目が破れ易くなり、一方、0.4mmを越えて広くなると開封し難くなる。
【0019】
本発明においてティシュペーパー用カートンは、単層あるいは複数層のシートを積層してなる坪量200〜450g/mの板紙に、印刷を行い、ニスをオーバーコートし、開封用ミシン目を形成して作製したものが用いられる。
【0020】
【実施例】
以下、実施例を示す図面により、本発明の開封性を改善したティシュペーパー用カートンを詳細に説明するが、本発明は、これらの実施例に限定されるものではない。
【0021】
図1は、本発明の開封性を改善したティシュペーパー用カートンの上面部分の状態を示す平面図である。
図1において、ティシュペーパー用カートン1の上面部には、ティシュペーパー取出し用の開口部2を形成するための開封用ミシン目3が形成されており、開封用ミシン目3は、環状に形成された内側ミシン目4と、内側ミシン目4の長手方向に沿って、内側ミシン目4の外側に形成された外側ミシン目5とから構成されている。
また、内側ミシン目4の一方の端部には、開口部2を形成する際に開封開始部となる指先挿入部6が形成されている。
なお、本実施例においては、外側ミシン目5は内側ミシン目4の長手方向にのみ形成した例を示したが、内側ミシン目4の周縁部に沿って環状に形成しても良い。
また、指先挿入部6も、内側ミシン目4の一方の端部のみだけでなく、両方の端部に形成しても良い。
【0022】
図2は、図1に示す開封用ミシン目の部分拡大図である。
図2において、内側ミシン目4と外側ミシン目5は、その切込み線7が、相互の間隔に臨む位置に配置されて形成されている。内側ミシン目4と外側ミシン目5をこのように形成することにより、開口部を形成する場合に切り離しをスムーズに行うことができる。
また、図2に示すように、本発明において、切込み線7の幅(b)は0.3〜0.9mmであり、切込み線7の長さ(c)は0.7〜1.2mmであり、隣接する切込み線と切込み線の間の長さ(d)は0.7〜1.2mmであり、内側ミシン目4と外側ミシン目5の間の長さ(e)は0.1〜0.4mmであることが好ましい。
【0023】
図3は、図2に示すミシン目の切込み線をX−X線に沿って切断した状態の拡大断面図を示す。
図3において、ティシュペーパー用カートン1には、表面側から裏面側にすり鉢状のミシン目の切込み線7が形成されている。カートンに開封用のミシン目を形成する場合、特定の角度を有するカッターによりカートンを打抜いて形成されるため、このようなすり鉢状の断面形状の切込み線が形成される。
本発明では、カートン1の厚さ(a)と切込み線7の幅(b)とがb≦2aの関係にある。
すなわち、図3において、カートン1の切込み線7より左側の部分を切り離して開口部を形成した場合、カートン1の切込み線7より右側の部分が開口部の端縁となるが、θで示す開口部端縁の断面の角度が45°未満になると、この部分に指が接触した場合に指を傷付け易くなる。したがって、この部分の角度を45°以上にする必要があるが、そのためにはミシン目を形成する際に切込み線7の幅(b)の寸法がカートン1の厚さ(a)の2倍以下になるようにすれば良い。特に、内側ミシン目は、開口部の凹凸状端縁の凸部に位置し、指が接触し易いため、本発明では、内側ミシン目の切込み線を上記の関係を有するように形成することが好ましい。
また、本発明において、カートン1の厚さ(a)は0.25〜0.5mmであることが好ましい。
【0024】
なお、上記実施例では、開封用ミシン目をカートン上面部分の表面側から形成した場合を示したが、必要に応じてカートン上面部分の裏面側(ティシュペーパーと接する側)から形成しても良い。
【0025】
【発明の効果】
以上、説明したように、本発明の開封性を改善したティシュペーパー用カートンは、ティシュペーパー取出し用の開口部を形成する場合、ミシン目を小さな力で容易に切り離すことができ、さらに、開口部の切り口が平滑で手触り感が良く、端縁部に指が触った場合にも指を傷付けることがないという優れた効果を有するものである。
【図面の簡単な説明】
【図1】本発明の開封性を改善したティシュペーパー用カートンの上面部分の状態を示す平面図。
【図2】図1に示す開封用ミシン目の部分拡大図。
【図3】図2に示す切込み線をX−X線に沿って切断した状態を示す拡大断面図。
【符号の説明】
1.ティシュペーパー用カートン
2.開口部
3.開封用ミシン目
4.内側ミシン目
5.外側ミシン目
6.指先挿入部
7.ミシン目の切込み線
a.カートンの厚さ寸法
b.切込み線の幅寸法
c.切込み線の長さ寸法
d.隣接する切込み線の間の長さ
e.内側ミシン目と外側ミシン目の間の長さ
θ.カートンの開口部端縁の断面の角度
[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a tissue paper carton for accommodating a large number of tissue papers in a superimposed state, and more particularly, the present invention forms an opening for removing tissue paper formed in an upper surface portion of the carton. The perforation can be easily cut off with a small force, the cut end is smooth and the feel is good when the opening is opened, and the openability that does not hurt the finger when the finger touches the edge An improved tissue paper carton.
[0002]
[Prior art]
Conventionally, a tissue paper carton has an annular opening perforation to form an opening for taking out tissue paper at a predetermined position on an upper surface portion thereof, and further covers the entire opening portion from the inside. As described above, a rectangular parallelepiped carton in which a plastic film such as polyethylene having a slit is windowed is widely used. In such a tissue paper carton, a fingertip is inserted into a fingertip insertion portion formed inside one or both ends of a perforation at the time of use, and a portion serving as an opening for tissue paper removal is cut off. When the paper is opened, the tissue paper can be continuously taken out from the opening one by one.
[0003]
As disclosed in Japanese Patent Application Laid-Open No. H08-104378, such a carton for tissue paper is formed by separating and opening a portion serving as an opening for taking out tissue paper along an annular perforation. In order to improve the appearance and feel of the cut edge around the opening, and to smoothly cut off the portion that becomes the opening, cut the annular perforations with the cuts between the inner perforations and the inner perforations with a narrow interval. A method of forming a double perforation in which an outer perforation cut portion close to the outside of the eye is arranged in a staggered manner has been proposed.
[0004]
However, in the tissue paper carton in which the perforations are formed as described above, when the perforations are separated, the opening pieces are cut by cutting the opening pieces while alternately moving between the cut portions of the inner and outer perforations. However, since the interval between the cut portions on the inner perforation is narrow, the edge of the opening has a straight line connecting the end of the cut portion on the inner perforation and the end of the cut portion on the outer perforation. An irregular portion is formed in which the inner angle is connected to a right angle or an acute angle, and when the finger touches this portion, an accident may occur that the finger is damaged.
[0005]
In order to improve such a problem, Japanese Patent Application Laid-Open No. 2001-219980 discloses that a straight line connecting an end of a cut portion of an inner perforation and an end of a cut portion of an outer perforation is provided at an edge of an opening. A tissue paper carton is disclosed in which perforations are formed such that an uneven portion whose inner angle with the perforations is obtuse is formed. The use of such a perforated carton for tissue paper has reduced the risk of injuring the finger at the edge of the opening, but is still not sufficient, and sometimes damages the finger depending on the perforation forming method. An accident has occurred.
[0006]
[Problems to be solved by the invention]
The present invention overcomes the problems of the above-described conventional tissue paper carton, and can smoothly perform separation when forming an opening for taking out tissue paper, and furthermore, a finger is placed on the edge of the opening. An object of the present invention is to provide a carton for tissue paper having perforations formed so as not to hurt a finger when it comes into contact and having improved openability.
[0007]
[Means for Solving the Problems]
The present invention for solving the problems of the conventional tissue paper carton includes the following inventions.
[0008]
(1) In a tissue paper carton in which tissue paper is accommodated in a superimposed state and an opening perforation for forming an opening for taking out tissue paper is formed on an upper surface thereof,
The opening perforation is formed of an inner perforation formed in an annular shape, and an outer perforation formed outside the inner perforation and formed at least along a longitudinal direction of the inner perforation,
When the carton has a thickness of a and the width of the cut line at the surface of the upper surface portion is b, at least the inner perforations have a relationship of b ≦ 2a. Improved tissue paper for carton.
[0009]
(2) The carton for tissue paper having improved openability according to (1), wherein the carton has a thickness of 0.25 to 0.5 mm.
[0010]
(3) The tissue paper carton according to (1) or (2), wherein the width of the cut line of the opening perforation is 0.3 to 0.9 mm.
[0011]
(4) The length of the cut line of the opening perforation is 0.7 to 1.2 mm, and the length between adjacent cut lines is 0.7 to 1.2 mm. A carton for tissue paper having improved openability according to any one of the above items (1) to (3).
[0012]
(5) The length between the inner perforation and the outer perforation of the opening perforation is 0.1 to 0.4 mm, any of (1) to (4). A carton for tissue paper having improved openability as described in 1.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
In the carton for tissue paper of the present invention having improved openability, an opening perforation for forming an opening for taking out the tissue paper is formed on the upper surface portion, and the thickness of the upper surface portion of the carton is a. When the width of the perforation line is b, there is a relationship of b ≦ 2a.
The tissue paper carton of the present invention having an improved opening property according to the present invention can be smoothly separated when an opening is formed, and furthermore, when a finger touches the edge of the opening, the finger is touched. It has a good touch without being damaged.
That is, when forming an opening perforation in a tissue paper carton, the upper surface portion is punched out by a cutter having a specific angle. In this case, as shown in FIG. 3, an opening formed in the carton is formed. It has been clarified that when the angle θ of the cross section of the portion to be the edge of is smaller than 45 °, the finger is easily damaged when the finger comes into contact with this portion.
The present invention has been made to solve such a problem, and defines the width of the perforated cut line with respect to the thickness of the upper surface portion of the carton, so that the angle of the cross section of the carton at the edge of the opening is reduced. By setting the angle to 45 ° or more, when the finger comes into contact with the edge of the opening, a good touch feeling is obtained, and the finger is prevented from being damaged.
[0014]
Generally, an opening perforation is formed of a double perforation in which an inner perforation and an outer perforation are arranged in a staggered manner. When forming an opening, the carton is formed by an inner perforation and an outer perforation. An opening having an uneven edge is formed by being alternately cut along the eyes. In this case, the inner perforation portion becomes a convex portion of the edge of the opening, so that the finger easily contacts.
Therefore, in the present invention, when forming at least the inner perforation, it is preferable to form the cut line so that the width of the cut line has the above relationship.
[0015]
In this case, the thickness of the carton (indicated by a in FIG. 3) is preferably 0.25 to 0.5 mm. If the thickness of the carton is less than 0.25 mm, the strength of the carton becomes weak, and there is a risk that the carton will be broken due to impact during transportation or storage. On the other hand, when the thickness exceeds 0.5 mm, the suitability for box making deteriorates, which is not preferable.
[0016]
Further, it is preferable that the width of the cut line of the opening perforation (indicated by reference numeral b in FIG. 2) is 0.3 to 0.9 mm. If the width of the cut line is less than 0.3 mm, it is difficult to open the opening along the perforation. On the other hand, if the width exceeds 0.9 mm, the strength of the opening decreases, and the impact during transportation or storage is reduced. For example, perforations are easily broken.
[0017]
Further, the length of the perforated cut line (indicated by reference numeral c in FIG. 2) is 0.7 to 1.2 mm, and the length between adjacent cut lines (indicated by reference numeral d in FIG. 2). ) Is preferably 0.7 to 1.2 mm. When the length of the score line and the length between adjacent score lines are within this range, the opening can be easily and neatly opened along the perforation.
When the length of the cut line is less than 0.7 mm, it becomes difficult to open the package, while when the length is more than 1.2 mm, the strength of the opening decreases, and the perforations are easily broken due to impact during transportation or storage. .
Further, when the length between adjacent cut lines is less than 0.7 mm, the strength of the opening is reduced, and the perforations are easily broken by an impact during transportation or storage, and on the other hand, when the length exceeds 1.2 mm. The longer it becomes, the harder it becomes to open.
[0018]
Further, it is preferable that the length between the inner perforations and the outer perforations for opening (shown by a symbol e in FIG. 2) is 0.1 to 0.4 mm. When the length between the inner perforation and the outer perforation is less than 0.1 mm, the strength of the opening decreases, and the perforation is easily broken by an impact during transportation or storage, and on the other hand, exceeds 0.4 mm It becomes difficult to open when it is wide.
[0019]
In the present invention, the carton for tissue paper is formed by printing on a paperboard having a basis weight of 200 to 450 g / m 2 formed by laminating sheets of a single layer or a plurality of layers, overcoating a varnish, and forming an opening perforation. What was produced by using is used.
[0020]
【Example】
Hereinafter, a carton for tissue paper with improved openability according to the present invention will be described in detail with reference to the drawings showing examples, but the present invention is not limited to these examples.
[0021]
FIG. 1 is a plan view showing a state of an upper surface portion of a carton for tissue paper of the present invention with improved openability.
In FIG. 1, an opening perforation 3 for forming an opening 2 for taking out tissue paper is formed on the upper surface of the tissue paper carton 1, and the opening perforation 3 is formed in an annular shape. And an outer perforation 5 formed outside the inner perforation 4 along the longitudinal direction of the inner perforation 4.
At one end of the inner perforation 4, a fingertip insertion portion 6 serving as an opening start portion when the opening 2 is formed is formed.
In the present embodiment, an example in which the outer perforations 5 are formed only in the longitudinal direction of the inner perforations 4 is shown, but the outer perforations 5 may be formed annularly along the peripheral edge of the inner perforations 4.
Further, the fingertip insertion portion 6 may be formed not only at one end of the inner perforation 4 but also at both ends.
[0022]
FIG. 2 is a partially enlarged view of the opening perforation shown in FIG.
In FIG. 2, the inner perforations 4 and the outer perforations 5 are formed such that the cut lines 7 are arranged at positions facing each other. By forming the inner perforations 4 and the outer perforations 5 in this manner, the separation can be smoothly performed when forming the opening.
Further, as shown in FIG. 2, in the present invention, the width (b) of the cut line 7 is 0.3 to 0.9 mm, and the length (c) of the cut line 7 is 0.7 to 1.2 mm. The length (d) between adjacent cut lines is 0.7 to 1.2 mm, and the length (e) between the inner perforation 4 and the outer perforation 5 is 0.1 to 1.2 mm. It is preferably 0.4 mm.
[0023]
FIG. 3 is an enlarged cross-sectional view of a state where the perforation line shown in FIG. 2 is cut along the line XX.
In FIG. 3, a mortar-shaped perforated cut line 7 is formed in the tissue paper carton 1 from the front side to the back side. When a perforation for opening is formed in a carton, the carton is formed by punching out the carton with a cutter having a specific angle, so that a cut line having such a mortar-shaped cross section is formed.
In the present invention, the thickness (a) of the carton 1 and the width (b) of the score line 7 have a relationship of b ≦ 2a.
That is, in FIG. 3, when an opening is formed by cutting off a portion on the left side of the cut line 7 of the carton 1, a portion on the right side of the cut line 7 of the carton 1 becomes an edge of the opening. If the angle of the cross section of the edge is less than 45 °, the finger is likely to be damaged when the finger comes into contact with this part. Therefore, it is necessary to set the angle of this portion to 45 ° or more. For this purpose, when forming the perforation, the width (b) of the cut line 7 is twice or less the thickness (a) of the carton 1. What should be done is. In particular, since the inner perforation is located at the convex portion of the uneven edge of the opening, and the finger is easily contacted, in the present invention, the cut line of the inner perforation may be formed so as to have the above relationship. preferable.
In the present invention, the thickness (a) of the carton 1 is preferably 0.25 to 0.5 mm.
[0024]
In the above embodiment, the case where the opening perforation is formed from the surface side of the carton upper surface portion is shown, but may be formed from the back surface side (the side in contact with the tissue paper) of the carton upper surface portion as necessary. .
[0025]
【The invention's effect】
As described above, the tissue paper carton of the present invention with improved opening properties can easily cut off perforations with a small force when forming an opening for taking out tissue paper. Has an excellent effect that the cut edge is smooth and the feel is good, and the finger is not damaged even when the finger touches the edge.
[Brief description of the drawings]
FIG. 1 is a plan view showing a state of an upper surface portion of a carton for tissue paper with improved openability according to the present invention.
FIG. 2 is a partially enlarged view of the opening perforation shown in FIG.
FIG. 3 is an enlarged cross-sectional view showing a state where the cutting line shown in FIG. 2 is cut along the line XX.
[Explanation of symbols]
1. 1. Carton for tissue paper Opening 3. 3. Perforation for opening Inner perforation 5. Outer perforation 6. 6. Fingertip insertion section Perforated score line a. Carton thickness b. Width of cut line c. Length of cut line d. The length between adjacent score lines e. The length θ between the inner perforation and the outer perforation. Angle of cross section of carton opening edge

Claims (5)

ティシュペーパーを重畳状態で収容し、その上面部分にティシュペーパー取出し用の開口部を形成するための開封用ミシン目が形成されたティシュペーパー用カートンにおいて、
前記開封用ミシン目は、環状に形成された内側ミシン目と、前記内側ミシン目の外側に形成され、且つ、少なくとも内側ミシン目の長手方向に沿って形成された外側ミシン目とからなり、
前記カートンは、厚さをaとし、前記上面部分の表面における前記ミシン目の切込み線の幅をbとした場合、少なくとも前記内側ミシン目はb≦2aの関係を有することを特徴とする開封性を改善したティシュペーパー用カートン。
In a tissue paper carton in which tissue paper is stored in a superimposed state and an opening perforation for forming an opening for taking out tissue paper is formed on the upper surface thereof,
The opening perforation is formed of an inner perforation formed in an annular shape, and an outer perforation formed outside the inner perforation and formed at least along a longitudinal direction of the inner perforation,
When the carton has a thickness of a and the width of the cut line at the surface of the upper surface portion is b, at least the inner perforations have a relationship of b ≦ 2a. Improved tissue paper for carton.
前記カートンの厚さが0.25〜0.5mmであることを特徴とする請求項1記載の開封性を改善したティシュペーパー用カートン。The carton for tissue paper with improved openability according to claim 1, wherein the carton has a thickness of 0.25 to 0.5 mm. 前記開封用ミシン目の切込み線の幅が0.3〜0.9mmであることを特徴とする請求項1または2記載の開封性を改善したティシュペーパー用カートン。The carton for tissue paper with improved opening properties according to claim 1 or 2, wherein the width of the cut line of the opening perforation is 0.3 to 0.9 mm. 前記開封用ミシン目の切込み線の長さが0.7〜1.2mmであり、隣接する切込み線と切込み線の間の長さが0.7〜1.2mmであることを特徴とする請求項1〜3のいずれかに記載の開封性を改善したティシュペーパー用カートン。The length of the cut line of the opening perforation is 0.7 to 1.2 mm, and the length between adjacent cut lines is 0.7 to 1.2 mm. Item 4. A carton for tissue paper having improved openability according to any one of Items 1 to 3. 前記開封用ミシン目の前記内側ミシン目と前記外側ミシン目の間の長さが0.1〜0.4mmであることを特徴とする請求項1〜4のいずれかに記載の開封性を改善したティシュペーパー用カートン。The length between the inner perforation and the outer perforation of the opening perforation is 0.1 to 0.4 mm, and the openability is improved according to any one of claims 1 to 4. Carton for tissue paper.
JP2002156913A 2002-05-30 2002-05-30 Carton for tissue paper with improved opening property Pending JP2004001790A (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016124598A (en) * 2015-01-06 2016-07-11 日本製紙クレシア株式会社 Paper product-containing carton
JP2016131599A (en) * 2015-01-16 2016-07-25 日本製紙クレシア株式会社 Paper product-filled carton, and carton-storing cardboard case
JP2018199533A (en) * 2018-10-02 2018-12-20 日本製紙クレシア株式会社 Carton containing paper product
JP2019023109A (en) * 2018-10-02 2019-02-14 日本製紙クレシア株式会社 Carton containing paper product and cardboard box storing carton

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016124598A (en) * 2015-01-06 2016-07-11 日本製紙クレシア株式会社 Paper product-containing carton
JP2016131599A (en) * 2015-01-16 2016-07-25 日本製紙クレシア株式会社 Paper product-filled carton, and carton-storing cardboard case
JP2018199533A (en) * 2018-10-02 2018-12-20 日本製紙クレシア株式会社 Carton containing paper product
JP2019023109A (en) * 2018-10-02 2019-02-14 日本製紙クレシア株式会社 Carton containing paper product and cardboard box storing carton

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