JP5366125B2 - Rolled paper paper tube and method for manufacturing rolled paper paper tube - Google Patents

Rolled paper paper tube and method for manufacturing rolled paper paper tube Download PDF

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JP5366125B2
JP5366125B2 JP2008295635A JP2008295635A JP5366125B2 JP 5366125 B2 JP5366125 B2 JP 5366125B2 JP 2008295635 A JP2008295635 A JP 2008295635A JP 2008295635 A JP2008295635 A JP 2008295635A JP 5366125 B2 JP5366125 B2 JP 5366125B2
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paper
cylindrical body
belt
peripheral surface
roll
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JP2010119582A (en
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徹 若林
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New Oji Paper Co Ltd
Oji Holdings Corp
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Oji Holdings Corp
Oji Paper Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper pipe for rolled paper, capable of retaining the stability in the shape even if the quantity of use of an adhesive substance such as a paste is reduced, and capable of reducing the loads on a cutting blade when the paper is cut at a prescribed width in the axial direction of the paper pipe. <P>SOLUTION: The method of manufacturing the paper pipe 1 for rolled paper includes: a first winding process for forming a first cylindrical body 12 by spirally winding first strip-shaped paper 11 on the surface of a spindle 41; a pasting step for partially pasting a pasting surface 23 of second strip-shaped paper 21, for example, as the inner surface 24 of a second cylindrical body 22; a second winding step for bonding the outer surface 14 of the first cylindrical body 12 to the inner surface 24 of the second cylindrical body 21 and forming the paper pipe 1 with the first cylindrical body 12 layered on the second cylindrical body 22 by spirally winding the second strip-shaped paper 21 on the outer surface 14 of the first cylindrical body 12 to form the second cylindrical body 22; and a cutting step for cutting the paper pipe 1 at a desired length. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、トイレットペーパーやキッチンタオルなどの紙が巻取られたロール状ペーパーの芯を構成するロール状ペーパー用紙管及びその製造方法に関する。   The present invention relates to a roll-shaped paper sheet tube constituting a core of a roll-shaped paper around which paper such as toilet paper or kitchen towel is wound, and a method for manufacturing the same.

トイレットペーパーやキッチンタオルなどの家庭用衛生用紙は、通常、紙からなる紙管に巻き取られたロール状ペーパーとして市場に流通している。ロール状ペーパーの製造工程では、生産効率の観点から、先ず長尺の紙管に長尺幅の衛生用紙が巻取られた長尺の巻取り紙（ログ）が作製され、次いでこのログが所定幅に切断されることにより、市販品のロール状ペーパーが製造される。   Home hygiene paper such as toilet paper and kitchen towels is usually distributed in the market as rolled paper wound around a paper tube made of paper. In the roll paper manufacturing process, from the viewpoint of production efficiency, first, a long web (log) in which a long sanitary paper is wound around a long paper tube is produced, and then this log is determined in advance. By cutting into a width, a commercially available roll-shaped paper is produced.

ロール状ペーパー用紙管としては、帯状紙を螺旋状に巻回して筒形の形状とされたものが広く用いられている。従来用いられているロール状ペーパー用紙管としては、１枚目の帯状紙が螺旋状に巻回された筒状体の外周に２枚目の帯状紙が巻回されている積層タイプのものがある（例えば、特許文献１参照）。この積層タイプのロール状ペーパー用紙管は、形状安定性向上の観点から、１枚目の帯状紙と２枚目の帯状紙とが接触する部分は全面的に糊などにより接着されている。   As a roll-shaped paper sheet tube, a tube-shaped paper sheet that is wound into a spiral shape is widely used. As a roll paper paper tube used conventionally, there is a laminated type in which a second belt is wound around the outer periphery of a cylindrical body in which a first belt is spirally wound. Yes (see, for example, Patent Document 1). In this laminated type roll-shaped paper sheet tube, from the viewpoint of improving the shape stability, the part where the first sheet and the second sheet are in contact with each other is entirely bonded with glue or the like.

特開平７−１１６０７５号公報JP 7-1116075 A

しかしながら、上述の積層タイプのロール状ペーパー用紙管では、以下の２つの問題点がある。第１の問題点は、１枚目の帯状紙と２枚目の帯状紙との接触する部分が全面的に糊付けされているため、多量の糊を必要とする点にある。第２の問題点は、上述のロール状ペーパーの製造工程においてログから所定幅のロール状ペーパーへと切断刃にて切断する際、糊等により硬くなったロール状ペーパー用紙管では、切断刃に対して過度な負担をかけてしまう点にある。   However, the above-described laminated type roll-shaped paper sheet tube has the following two problems. The first problem is that a large amount of glue is required because the contact portion between the first and second belts is glued over the entire surface. The second problem is that, in the above-described roll-shaped paper manufacturing process, when cutting with a cutting blade from a log to a roll-shaped paper having a predetermined width, a roll-shaped paper sheet tube that has become hard due to glue or the like is used as a cutting blade. On the other hand, it is an excessive burden.

上記の問題に鑑みて、本発明の課題は、糊等の使用量が低減されても形状が保持され、かつ切断時に切断刃に対する負荷が少ないロール状ペーパー用紙管を提供することにある。   In view of the above problems, an object of the present invention is to provide a roll-shaped paper sheet tube that retains its shape even when the amount of glue or the like used is reduced and has a low load on the cutting blade during cutting.

上記課題を解決するため、本発明者は、積層タイプのロール状ペーパー用紙管に関し、２枚の帯状紙の間を接着する形態を多数検討し、本発明を完成するに至った。すなわち、本発明によれば、以下に示すロール状ペーパー用紙管が提供される。   In order to solve the above-mentioned problems, the present inventor has studied a number of forms in which two strip-shaped papers are bonded to each other with respect to a laminated type roll-shaped paper sheet tube, and has completed the present invention. That is, according to the present invention, the following rolled paper sheet tube is provided.

［１］ 第１の帯状紙が螺旋状に巻回されて筒形の形状とされた第１の筒状体と、前記第１の筒状体の外周面に螺旋状に巻回されて筒形の形状とされた第２の筒状体と、から構成され、前記第１の筒状体の前記外周面と前記第２の筒状体の内周面とが部分的に接着され、前記第１の筒状体と前記第２の筒状体とが積層する筒状体として保持されている、ロール状ペーパー用紙管であり、前記ロール状ペーパー用紙管の軸方向に対して垂直な断面でみたとき、前記外周面と前記内周面との接着のない、前記軸方向に所定幅のリング状帯状部が、前記ロール状ペーパー用紙管の軸方向において所定間隔にて繰り返し存在する、ロール状ペーパー用紙管。 [1] A first cylindrical body in which a first belt-shaped paper is spirally wound to form a cylindrical shape, and a cylindrical body that is spirally wound around the outer peripheral surface of the first cylindrical body. A second cylindrical body having a shape, wherein the outer peripheral surface of the first cylindrical body and the inner peripheral surface of the second cylindrical body are partially bonded, A roll-shaped paper sheet tube held as a cylindrical body in which the first tubular body and the second tubular body are stacked , and a cross section perpendicular to the axial direction of the roll-shaped paper sheet tube A roll in which ring-shaped strips having a predetermined width in the axial direction and having no adhesion between the outer peripheral surface and the inner peripheral surface are repeatedly present at predetermined intervals in the axial direction of the roll-shaped paper sheet tube. Paper paper tube.

［２］ 前記外周面と前記内周面との部分的な接着は、縞模様状及び／又は水玉模様状である、前記［１］に記載のロール状ペーパー用紙管。 [2] The roll-shaped paper sheet tube according to [1], wherein the partial adhesion between the outer peripheral surface and the inner peripheral surface is a striped pattern and / or a polka dot pattern.

［３］ 第１の帯状紙からなる第１の筒状体と第２の帯状紙からなる第２の筒状体とが積層しているロール状ペーパー用紙管の製造方法であって、芯棒の表面に前記第１の帯状紙を螺旋状に巻付けて前記第１の筒状体を形成する第１巻付け工程と、前記第１の筒状体の外周面となる前記第１の帯状紙の面及び前記第２の筒状体の内周面となる第２の帯状紙の面の少なくともいずれかを糊付け面とし、前記糊付け面へ部分的に糊付けする糊付け工程と、前記糊付け工程後、前記第１の筒状体の外周面に前記第２の帯状紙を螺旋状に巻回して第２の筒状体を形成することにより、前記第１の筒状体の前記外周面と前記第２の筒状体の前記内周面とを接着させ、前記第１の筒状体と前記第２の筒状体とが積層している紙管を形成する第２巻付け工程と、前記紙管を所望の長さに切断する切断工程と、を有し、前記糊付け工程において、前記第２の筒状体の前記内周面となる前記第２の帯状紙の面を前記糊付け面とし、前記第２の帯状紙の長手方向に対して傾斜角θを有し、糊付けされない、帯状の非接着部が、前記第２の帯状紙の長手方向において所定間隔にて繰り返し現れるように前記糊付け面へ糊付けを行い、前記第２巻付け工程において、前記第２の帯状紙を、前記第２の帯状紙の前記長手方向と前記芯棒の軸に垂直な方向とが前記傾斜角θと略同一の傾斜を有するように、前記第１の筒状体の前記外周面に螺旋状に巻回する、ロール状ペーパー用紙管の製造方法。 [ 3 ] A method for manufacturing a roll-shaped paper sheet tube in which a first cylindrical body made of a first belt-like paper and a second cylindrical body made of a second belt-like paper are laminated. A first winding step of forming the first cylindrical body by spirally winding the first belt-like paper on the surface of the first belt-like shape, and the first belt-like shape serving as an outer peripheral surface of the first cylindrical body A gluing step in which at least one of the surface of the paper and the surface of the second belt-shaped paper which is the inner peripheral surface of the second cylindrical body is used as a gluing surface, and the gluing surface is partially glued; And forming the second cylindrical body by spirally winding the second band-shaped paper around the outer peripheral surface of the first cylindrical body and the outer peripheral surface of the first cylindrical body and the A second winding step of bonding the inner peripheral surface of the second cylindrical body to form a paper tube in which the first cylindrical body and the second cylindrical body are laminated. , Have a, a cutting step of cutting the paper tube to a desired length, in the gluing process, the gluing of the said second face of the paper web to be the inner circumferential surface of the second cylindrical body A strip-shaped non-adhesive portion that is inclined and has an inclination angle θ with respect to the longitudinal direction of the second strip-shaped paper and is not glued repeatedly appears at predetermined intervals in the longitudinal direction of the second strip-shaped paper. Gluing is performed on the gluing surface, and in the second winding step, the second band-shaped paper has the inclination angle θ between the longitudinal direction of the second band-shaped paper and the direction perpendicular to the axis of the core rod. A method of manufacturing a roll-shaped paper sheet tube that is spirally wound around the outer peripheral surface of the first cylindrical body so as to have substantially the same inclination .

［４］ 前記糊付け工程において、前記糊付け面へ、縞模様状及び／又は水玉模様状に糊付けする、前記［３］に記載のロール状ペーパー用紙管の製造方法。 [ 4 ] The method for producing a roll-shaped paper sheet tube according to [ 3 ], wherein in the gluing step, the gluing surface is glued in a striped pattern and / or a polka dot pattern.

本発明のロール状ペーパー用紙管は、糊等の使用量が低減されても形状が保持され、かつ切断時に切断刃に対する負荷が少ない効果を奏する。   The roll-shaped paper sheet tube of the present invention has an effect that the shape is maintained even when the amount of glue used is reduced, and the load on the cutting blade is less during cutting.

以下、図面を参照しつつ本発明の実施の形態について説明する。本発明は、以下の実施形態に限定されるものではなく、本発明の範囲を逸脱しない限りにおいて、変更、修正、改良を加え得るものである。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments, and changes, modifications, and improvements can be added without departing from the scope of the present invention.

Ａ．ロール状ペーパー用紙管：
Ａ‐１．本発明のロール状ペーパー用紙管の概要：
図１にて模式的に表した本発明のロール状ペーパー用紙管１（以下、「本発明の紙管」）の一実施形態を参照すると、本発明の紙管１は、第１の筒状体１２と第２の筒状体２２とが積層している紙管である。本発明の紙管１を構成する第１の筒状体１２とは、図４Ａ〜４Ｃの側面図にて表されるように、第１の帯状紙１１が螺旋状に巻回されて筒形の形状となったものである。本発明の紙管１を構成する第２の筒状体２２とは、同じく図４Ａ〜４Ｃの側面図にて表されるように、第２の帯状紙２１が螺旋状に巻回されて筒形の形状となったものである。また、第２の筒状体２２では、第２の帯状紙２１が第１の筒状体の外周面１４を螺旋状に巻回している。図２は、図１中のＡ‐Ａ′断面であり、紙管１の軸方向２に垂直な断面３を表す。図２の断面図に表されるように、本発明の紙管１を構成する第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とは、糊４により部分的に接着している。この第１の筒状体１２と第２の筒状体２２との接着により、本発明の紙管１は、第１の筒状体１２と第２の筒状体２２とが積層している筒形の形状が保持されている。このような第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４との部分的な接着により、本発明の紙管１を切断する場合、切断刃への負担が少なく、スムーズに切断できる。対照的に、図３の断面図にて表されるような従来型の紙管１では、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが糊４により全面的に接着している。したがって、従来型の紙管１では、糊４により全体が硬化したものを切断することになり、切断刃への負担も大きくなる。 A. Roll paper paper tube:
A-1. Overview of the rolled paper sheet tube of the present invention:
Referring to one embodiment of the rolled paper sheet tube 1 of the present invention (hereinafter referred to as “the paper tube of the present invention”) schematically shown in FIG. 1, the paper tube 1 of the present invention has a first cylindrical shape. This is a paper tube in which the body 12 and the second cylindrical body 22 are laminated. As shown in the side views of FIGS. 4A to 4C, the first cylindrical body 12 constituting the paper tube 1 of the present invention is a cylindrical shape in which the first belt-like paper 11 is spirally wound. It became the shape of. As shown in the side views of FIGS. 4A to 4C, the second cylindrical body 22 constituting the paper tube 1 of the present invention is a tube in which the second belt-like paper 21 is spirally wound. It became the shape of the shape. Moreover, in the 2nd cylindrical body 22, the 2nd strip | belt-shaped paper 21 has wound the outer peripheral surface 14 of the 1st cylindrical body helically. FIG. 2 is a cross section taken along the line AA ′ in FIG. 1 and shows a cross section 3 perpendicular to the axial direction 2 of the paper tube 1. As shown in the sectional view of FIG. 2, the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 constituting the paper tube 1 of the present invention are glue 4 Is partially bonded. By bonding the first tubular body 12 and the second tubular body 22, the paper tube 1 of the present invention has the first tubular body 12 and the second tubular body 22 laminated. A cylindrical shape is maintained. When the paper tube 1 of the present invention is cut by partial adhesion between the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22, There is little burden and can cut smoothly. In contrast, in the conventional paper tube 1 represented by the cross-sectional view of FIG. 3, the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are The entire surface is adhered by glue 4. Therefore, in the conventional paper tube 1, the one that has been hardened entirely by the glue 4 is cut, and the burden on the cutting blade is also increased.

以下、本発明の紙管を構成する「第１の帯状紙及び第２の帯状紙」、「第１の筒状体及び第２の筒状体」、本発明の紙管の特徴の１つである「第１の筒状体と第２の筒状体との部分的な接着」について、順次詳しく説明する。   Hereinafter, one of the features of “the first and second belts”, “the first and second tubular bodies”, and the paper tube of the present invention, which constitute the paper tube of the present invention. The “partial adhesion between the first cylindrical body and the second cylindrical body” will be sequentially described in detail.

Ａ‐２．第１の帯状紙及び第２の帯状紙：
本発明の紙管を構成する第１の帯状紙及び第２の帯状紙は、従来公知の紙管に用いられる帯状紙と同じ形状及び材質のものを使用可能である。例えば、紙管に巻かれる衛生用紙などの材質や衛生用紙の巻き硬さ、あるいは接着に用いる糊の特性などに応じ、帯状紙の材質、厚み、及び幅などを適宜採用できる。 A-2. First strip and second strip:
The first and second belts constituting the paper tube of the present invention can be of the same shape and material as the belts used in conventionally known paper tubes. For example, the material, thickness, width, and the like of the belt-like paper can be appropriately employed depending on the material of the sanitary paper wound around the paper tube, the winding hardness of the sanitary paper, or the characteristics of the glue used for bonding.

Ａ‐３．第１の筒状体及び第２の筒状体：
本発明の紙管を構成する第１の筒状体及び第２の筒状体は、それぞれ第１の帯状紙及び第２の帯状紙が螺旋状に巻回した筒形の形状である。図４Ａ〜４Ｃは、第１の筒状体１２、又は第２の筒状体２２を模式的に表した側面図である。図４Ａ〜４Ｃに表すものを第１の筒状体１２として説明すると、第１の筒状体１２では、ある位置の第１の帯状紙１１が、その前後の螺旋ピッチを構成する第１の帯状紙１１に対して、離れる（図４Ａ）、側端１３を揃えて並走する（図４Ｂ）、又は重なる（図４Ｃ）、のいずれの形態であってもよい。第２の筒状体２２の形態についても同様である。また、これら筒状体１２、２２は、第１の帯状紙１１と第２の帯状紙２１とが積層している筒状体が保持される限りにおいては、図４Ａ〜４Ｃに表されるような規則正しく同一の螺旋ピッチにて帯状紙が巻回する形態であっても、あるいは不規則に巻回する形態（図示せず）であってもよい。 A-3. First cylindrical body and second cylindrical body:
The first cylindrical body and the second cylindrical body constituting the paper tube of the present invention have a cylindrical shape in which the first belt-shaped paper and the second belt-shaped paper are wound spirally, respectively. 4A to 4C are side views schematically showing the first cylindrical body 12 or the second cylindrical body 22. 4A to 4C will be described as the first cylindrical body 12. In the first cylindrical body 12, the first belt-like paper 11 at a certain position forms the first and second spiral pitches. The strip 11 may be in any form of being separated (FIG. 4A), running side by side with the side edges 13 aligned (FIG. 4B), or overlapping (FIG. 4C). The same applies to the form of the second cylindrical body 22. In addition, these cylindrical bodies 12 and 22 are represented in FIGS. 4A to 4C as long as the cylindrical body in which the first belt-like paper 11 and the second belt-like paper 21 are stacked is held. The belt-like paper may be wound regularly and regularly at the same spiral pitch, or may be wound irregularly (not shown).

本発明の紙管１では、紙管の形状安定性を高め、折れ曲がりを防止する観点からは、第１の帯状紙１１の側端１３と第２の帯状紙２１の側端２５とが揃わない形態にて、第１の筒状体１２及び第２の筒状体２２が積層していることが好ましい。第１の帯状紙１１の側端１３と第２の帯状紙２１の側端２５とが揃った状態の場合、この両者の側端がそろっている部分では、その前後の螺旋ピッチを構成する紙との連結がなくなるため、切れ目となってしまい紙管１が折れ曲がり易くなる。   In the paper tube 1 of the present invention, the side end 13 of the first belt-like paper 11 and the side edge 25 of the second belt-like paper 21 are not aligned from the viewpoint of improving the shape stability of the paper tube and preventing bending. In the form, the first cylindrical body 12 and the second cylindrical body 22 are preferably laminated. In the state where the side edge 13 of the first belt 11 and the side edge 25 of the second belt 21 are aligned, the paper constituting the helical pitch before and after the two side edges are aligned. And the paper tube 1 is easily bent.

Ａ‐４．第１の筒状体と第２の筒状体との部分的な接着：
図２の断面図にて一例を模式的に表すように、本発明の紙管１では、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが糊４によって部分的に接着している。このように、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが糊４により部分的に接着する形態とすることにより、糊４の使用量を低減できる。また、ロール状ペーパーを使用後、残された紙管１を容易に分解し廃棄できる利点もある。 A-4. Partial adhesion between the first tubular body and the second tubular body:
As schematically shown in the sectional view of FIG. 2, in the paper tube 1 of the present invention, the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are It is partially adhered by glue 4. In this way, the amount of the glue 4 used can be reduced by forming the form in which the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are partially bonded by the glue 4. Can be reduced. Further, there is also an advantage that the remaining paper tube 1 can be easily disassembled and discarded after the roll paper is used.

本発明の紙管１では、筒形の形状の安定性を高める観点からは、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４との部分的な接着は、紙管１の軸方向２の全域にわたることが好ましい。この全域にわたる部分的な接着の目安としては、例えば、第１の筒状体１２の場合、隣接する螺旋ピッチ間が、その上層の第２の筒状体２２との接着を介して間接的に連結しているか否かを基準とするとよい。この基準は、第２の筒状体２２の場合にも同様である。また、第１の帯状紙１１及び第２の帯状紙２１のめくれや紙管１の折れ曲がりを防止できる観点からは、第１の帯状紙１１の側端１３及び第２の帯状紙２２の側端２５に沿って連続的又は断続的に、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが接着している形態が好ましい。   In the paper tube 1 of the present invention, from the viewpoint of improving the stability of the cylindrical shape, a partial connection between the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 is achieved. Bonding is preferably performed over the entire area in the axial direction 2 of the paper tube 1. For example, in the case of the first cylindrical body 12, the interval between adjacent spiral pitches is indirectly determined through the adhesion with the second cylindrical body 22 in the upper layer. It may be based on whether or not they are connected. The same applies to the second cylindrical body 22. Further, from the viewpoint of preventing the first belt 11 and the second belt 21 from being turned over and the paper tube 1 from being bent, the side edge 13 of the first belt 11 and the side edge of the second belt 22 are used. A configuration in which the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are bonded continuously or intermittently along 25 is preferable.

また、本発明の紙管１では、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４との部分的な接着が、縞模様状及び又は水玉模様状であることが好ましい。   Further, in the paper tube 1 of the present invention, the partial adhesion between the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 is striped and / or polka dots. It is preferable that

なお、ここでいう「縞模様状」とは、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが糊４を介して接着している部分が、図９Ａ〜９Ｄに示すように連続的、又は図９Ｅに示すように断続的な線条として複数本並列した状態をいう。図９Ａ〜９Ｅに示された縞模様状の幾つかの具体例のように、この糊４を介して接着している部分の線条は、直線（図９Ａ）でも曲線（図９Ｂ）でも、ジグザグ（図９Ｃ）でも、あるいは線条が交差して網目状になっているもの（図９Ｄ）でもよい。ここでいう「水玉模様状」とは、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが糊４を介して接着している部分が、図１０Ａ〜１０Ｃにて例示するように、円形（図１０Ａ）、多角形（図１０Ｂ）、楕円、その他などの任意の形状（図１０Ｃ）を有して、ある領域内において、複数個散在している状態をいう。なお、ここでいう縞模様状と水玉模様状は、排他的な関係ではなく、接着している部分の分布の様式によっては、縞模様状と水玉模様状の双方に該当する形態にもなりうる。   The “striped pattern” as used herein refers to a portion where the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are bonded via the paste 4. 9A to 9D refers to a state where a plurality of wires are arranged in parallel as continuous filaments or as intermittent filaments as shown in FIG. 9E. As in some specific examples of the striped pattern shown in FIGS. 9A to 9E, the line of the portion bonded through the glue 4 may be a straight line (FIG. 9A) or a curved line (FIG. 9B). It may be a zigzag (FIG. 9C), or may have a mesh shape with intersecting filaments (FIG. 9D). The “polka dot pattern” as used herein refers to a portion where the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are bonded via the glue 4. As illustrated in 10A to 10C, it has an arbitrary shape (FIG. 10C) such as a circle (FIG. 10A), a polygon (FIG. 10B), an ellipse, etc., and a plurality of them are scattered within a certain region. The state that is. Note that the striped pattern and the polka dot pattern here are not in an exclusive relationship, and depending on the distribution pattern of the bonded portions, the striped pattern and the polka dot pattern may be in a form corresponding to both the striped pattern and the polka dot pattern. .

さらに、ログから所定幅のロール状ペーパーに切断する際に用いる切断刃への負荷を低減する観点から、本発明の紙管は、図５Ａにて表したロール状ペーパー用紙管１の側面図にて一例を模式的に表すように、紙管１の軸方向２に対して垂直な断面３でみたとき、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４との接着のない状態にて紙管１の軸方向２に所定幅を有するリング状帯状部６が、紙管１の軸方向２において所定間隔にて繰り返し存在する。このような形態とすることにより、各リング状帯状部６を切断刃にて切断する場合、糊付けされて硬化した箇所に切断刃が当たることなく、ロール状ペーパーを所定幅に切断できる。なお、図５Ａに示すロール状ペーパー用紙管１の側面図では、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とを接着させるための糊付け部５を透視して表している。 Further, viewpoint et to reduce the load on the cutting blades used in cutting the log into a roll paper having a predetermined width, the paper tube of the present invention is a side view of a roll-shaped paper sheet tube 1 represented in FIG. 5A As shown schematically in FIG. 1, when viewed in a cross-section 3 perpendicular to the axial direction 2 of the paper tube 1, the outer peripheral surface 14 of the first cylindrical body 12 and the inside of the second cylindrical body 22 ring belt portion 6 having a predetermined width by an adhesive-free state between the peripheral surface 24 in the axial direction 2 of the paper tube 1, repeat present at predetermined intervals in the axial direction 2 of the paper tube 1. By setting it as such a form, when each ring-shaped strip | belt-shaped part 6 is cut | disconnected with a cutting blade, a roll-shaped paper can be cut | disconnected to predetermined width, without a cutting blade hitting the location which was glued and hardened | cured. In the side view of the rolled paper sheet tube 1 shown in FIG. 5A, the gluing portion 5 for bonding the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 to each other. Is shown through.

Ａ‐５．本発明のロール状ペーパー用紙管の変形形態：
本発明のロール状ペーパー用紙管は、第１の筒状体と第２の筒状体との間にＩＣタグを配置した形態や、第１の筒状体及び／又は第２の筒状体に香料を付着させた形態にても実施可能である。また、第１の筒状体又は第２の筒状体に製品番号や製造番号を印字する形態にもできる。 A-5. Variations of the rolled paper sheet tube of the present invention:
The rolled paper sheet tube of the present invention has a configuration in which an IC tag is disposed between the first cylindrical body and the second cylindrical body, or the first cylindrical body and / or the second cylindrical body. The present invention can also be carried out in a form in which a fragrance is attached to the surface. Moreover, it can also be made into the form which prints a product number or a manufacturing number on a 1st cylindrical body or a 2nd cylindrical body.

Ａ‐６．本発明のロール状ペーパー用紙管の適用範囲：
本発明のロール状ペーパー用紙管は、トイレットロールやキッチンタオルなどのロール状ペーパーの巻き芯となる紙管として使用できる。特に、本発明のロール状ペーパー用紙管は、長尺の巻取り紙（ログ）から所定幅に切断する実施形態にて製造されるロール状ペーパーに使用される紙管として好適である。 A-6. Scope of application of roll paper paper tube of the present invention:
The rolled paper sheet tube of the present invention can be used as a paper tube that serves as a winding core for rolled paper such as toilet rolls and kitchen towels. In particular, the roll-shaped paper sheet tube of the present invention is suitable as a paper tube used for a roll-shaped paper manufactured in an embodiment in which a long web (log) is cut to a predetermined width.

Ｂ．ロール状ペーパー用紙管の製造方法：
Ｂ‐１．本発明のロール状ペーパー用紙管の製造方法の概要：
本発明のロール状ペーパー用紙管の製造方法（以下、「本発明の製造方法」）は、第１の帯状紙からなる第１の筒状体と第２の帯状紙からなる第２の筒状体とが積層しているロール状ペーパー用紙管を製造する方法である。図６にて模式的に表す紙管製造装置３１は、本発明の製造方法の一形態を実施するためのものである。図６に示す紙管製造装置３１を用いた本発明の製造方法の一実施形態では、第１巻付け部３２、糊転写部３５、第２巻付け部３３、及び切断部３６にてそれぞれ実施される、第１巻付け工程、糊付け工程、第２巻付け工程、及び切断工程を有する。 B. Manufacturing method of roll paper paper tube:
B-1. Overview of the method for producing the rolled paper sheet tube of the present invention:
The method for manufacturing a roll-shaped paper sheet tube of the present invention (hereinafter referred to as “the manufacturing method of the present invention”) includes a first cylindrical body made of a first belt-like paper and a second cylindrical shape made of a second belt-like paper. This is a method of manufacturing a roll-shaped paper sheet tube in which a body is laminated. A paper tube manufacturing apparatus 31 schematically shown in FIG. 6 is for carrying out an embodiment of the manufacturing method of the present invention. In the embodiment of the manufacturing method of the present invention using the paper tube manufacturing apparatus 31 shown in FIG. 6, the first winding unit 32, the glue transfer unit 35, the second winding unit 33, and the cutting unit 36 are respectively implemented. A first winding step, a gluing step, a second winding step, and a cutting step.

第１に、本発明の製造方法の第１巻付け工程は、図６にて示す第１巻付け部３２の実施形態から理解できるように、芯棒４１の表面に第１の帯状紙１１を螺旋状に巻付けて第１の筒状体１２を形成する工程である。第２に、本発明の製造方法の糊付け工程は、第１の筒状体の外周面となる第１の帯状紙の面及び第２の筒状体の内周面となる第２の帯状紙の面の少なくともいずれかを糊付け面とし、この糊付け面へ部分的に糊付けする工程である。図６に表す紙管製造装置３１では、第２の筒状体２２の内周面２４となる第２の帯状紙の面を糊付け面２３として、糊転写部３５にて糊付けを行っている。第３に、本発明の製造方法の第２巻付け工程は、図６にて示す第２巻付け部３３の実施形態から理解できるように、第１の筒状体１２の外周面１４に第２の帯状紙２１を螺旋状に巻回して第２の筒状体２２を形成することにより、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とを接着させ、第１の筒状体１２と第２の筒状体２２とが積層している紙管１を形成する工程である（なお、紙管１の構造及び各部名称については図１及び図２を参照）。第４に、本発明の製造方法の切断工程は、図６にて示す切断部３６での実施形態から理解できるように、第２巻付け工程を経て作製された紙管１を所望の長さに切断する工程である。本発明の製造方法では、これら一連の工程を経て、図１にて一例が示されるロール状ペーパー用紙管１、すなわち先に説明した本発明のロール状ペーパー用紙管１が製造される。   1stly, the 1st winding process of the manufacturing method of this invention can be understood from embodiment of the 1st winding part 32 shown in FIG. This is a step of forming the first cylindrical body 12 by spirally winding. 2ndly, the gluing process of the manufacturing method of this invention is the 2nd strip | belt-paper used as the surface of the 1st strip | belt-paper used as the outer peripheral surface of a 1st cylindrical body, and the internal peripheral surface of a 2nd cylindrical body. In this step, at least one of the surfaces is used as a gluing surface, and the gluing surface is partially glued. In the paper tube manufacturing apparatus 31 illustrated in FIG. 6, the glue transfer unit 35 performs the gluing with the second belt-like paper surface serving as the inner peripheral surface 24 of the second cylindrical body 22 as the gluing surface 23. Thirdly, as can be understood from the embodiment of the second winding portion 33 shown in FIG. 6, the second winding step of the manufacturing method of the present invention is performed on the outer peripheral surface 14 of the first cylindrical body 12. The second strip 22 is spirally wound to form the second cylindrical body 22, whereby the outer peripheral surface 14 of the first cylindrical body 12, the inner peripheral surface 24 of the second cylindrical body 22, To form a paper tube 1 in which the first cylindrical body 12 and the second cylindrical body 22 are laminated (for the structure of the paper tube 1 and the names of each part, refer to FIG. (See FIG. 2). Fourth, as can be understood from the embodiment of the cutting unit 36 shown in FIG. 6, the cutting step of the manufacturing method of the present invention has the desired length of the paper tube 1 manufactured through the second winding step. It is the process of cutting into. In the manufacturing method of the present invention, through these series of steps, the rolled paper sheet tube 1 whose example is shown in FIG. 1, that is, the previously described rolled paper sheet tube 1 of the present invention is manufactured.

Ｂ‐２．本発明のロール状紙管の製造方法を構成する工程：
以下、本発明の製造方法を構成する諸工程、「第１巻付け工程」、「糊付け工程」、「第２巻付け工程」及び「切断工程」について、順次詳しく説明する。 B-2. Steps constituting the method for producing a rolled paper tube of the present invention:
Hereinafter, the steps constituting the production method of the present invention, the “first winding step”, the “gluing step”, the “second winding step”, and the “cutting step” will be described in detail.

Ｂ‐２‐１．第１巻付け工程：
本発明の製造方法の第１巻付け工程では、芯棒４１の表面に第１の帯状紙１１を螺旋状に巻付けて第１の筒状体１２を形成できる限り特に限定はなく、作業環境などに対応した所望の実施形態とできる。例えば、図６にて表す紙管製造装置３１では、芯棒４１に巻付けられた第１の筒状体１２及び第２の筒状体２２が積層している筒状体に推進ベルト６２を接触させ、推進ベルト６２からの付勢によって、第１の筒状体１２及び第２の筒状体２２が、回転しながら芯棒４１の一方に端に向かって推進される。したがって、第１の筒状体１２が芯棒４１の端に向かって進行するのに伴い、新たに第１の帯状紙４１が連続的に供給されて芯棒４１に螺旋状に巻付けられる。 B-2-1. First winding process:
In the first winding step of the manufacturing method of the present invention, there is no particular limitation as long as the first cylindrical paper 12 can be formed by spirally winding the first strip 11 on the surface of the core rod 41, and the working environment is not limited. It is possible to obtain a desired embodiment corresponding to the above. For example, in the paper tube manufacturing apparatus 31 shown in FIG. 6, the propulsion belt 62 is attached to the cylindrical body in which the first cylindrical body 12 and the second cylindrical body 22 wound around the core rod 41 are laminated. The first cylindrical body 12 and the second cylindrical body 22 are propelled toward one end of the core rod 41 while rotating by the urging force from the propulsion belt 62. Therefore, as the first cylindrical body 12 advances toward the end of the core rod 41, new first belt-like paper 41 is continuously supplied and spirally wound around the core rod 41.

図６にて示す紙管製造装置１では、芯棒４１に巻付けられた第１の筒状体１２及び第２の筒状体２２が積層している筒状体に推進ベルト６２を接触させている実施形態であるが、もちろん、第２の帯状紙２１が巻付けられる前の第１の筒状体１２の外周面１４に推進ベルト６２を接触させる実施形態としてもよい。   In the paper tube manufacturing apparatus 1 shown in FIG. 6, the propulsion belt 62 is brought into contact with the cylindrical body in which the first cylindrical body 12 and the second cylindrical body 22 wound around the core rod 41 are laminated. However, of course, the propulsion belt 62 may be brought into contact with the outer peripheral surface 14 of the first tubular body 12 before the second belt-like paper 21 is wound.

なお、芯棒４１の形状は、作製する紙管１の断面の形状に合わせて設計すればよい。例えば、断面が円形の紙管１を作製する場合には芯棒４１の断面が円形の芯棒４１を使用するとよい。   In addition, what is necessary is just to design the shape of the core bar 41 according to the shape of the cross section of the paper tube 1 to produce. For example, when the paper tube 1 having a circular cross section is manufactured, the core bar 41 having a circular cross section may be used.

Ｂ‐２‐２．糊付け工程：
本発明の製造方法の糊付け工程では、第１の筒状体１２の外周面１４となる第１の帯状紙１１の面及び第２の筒状体２２の内周面２４となる第２の帯状紙２１の面の少なくともいずれかを糊付け面２３とし、この糊付け面２３へ部分的に糊付けできる限り特に限定されず、作業環境などに対応した所望の実施形態とできる。この糊付け工程の一実施形態として、図６にて表す糊転写部３５では、第２の筒状体２２の内周面２４となる第２の帯状紙２１の面を糊付け面２３とする形態を示す。 B-2-2. Gluing process:
In the gluing step of the manufacturing method of the present invention, the surface of the first belt-like paper 11 that becomes the outer peripheral surface 14 of the first cylindrical body 12 and the second belt-like that becomes the inner peripheral surface 24 of the second cylindrical body 22. At least one of the surfaces of the paper 21 is used as a gluing surface 23 and is not particularly limited as long as it can be partially glued to the gluing surface 23, and a desired embodiment corresponding to the working environment can be obtained. As an embodiment of this gluing step, the gluing transfer section 35 shown in FIG. 6 has a mode in which the surface of the second belt-like paper 21 that becomes the inner peripheral surface 24 of the second cylindrical body 22 is used as the gluing surface 23. Show.

本発明の製造方法の糊付け工程において、糊付け面２３へ部分的に糊付けする具体的な実施形態としては、例えば、スプレー等による糊の間欠的な噴霧、糊付け面２３と接触する部分が一部欠けた刷毛による塗布、活字印刷のようにロール又は平板の凹凸のある表面に付着した糊を転写する方法などを挙げることができる。   In the gluing step of the manufacturing method of the present invention, specific embodiments for partially gluing to the gluing surface 23 include, for example, intermittent spraying of glue by spraying, part of the portion that contacts the gluing surface 23 missing. For example, a method of transferring glue adhered to a surface having irregularities on a roll or a flat plate, such as application with a brush, or type printing.

生産効率を高める観点からは、糊付け工程は、表面に糊を付着させた糊転写ロールを第１の帯状紙及び／又は第２の帯状紙の糊付け面に接触させ、この糊転写ロールを回転させながら連続的に糊付け面へ糊付けする実施形態が好ましい。図７及び８では、糊転写部３５において、上述の糊転写ロール５３を用いて、第１の帯状紙１１又は第２の帯状紙２１の糊付け面２３へ糊付けする実施形態を表している。図７及び８にて表す糊転写ロール５３の使用形態から理解できるように、この糊転写ロール５３を使用する実施形態では、糊付け面２３への部分的な糊付けの様式に応じて、転写ロール５３表面に凸部５７を設けるとよい。   From the viewpoint of increasing production efficiency, the gluing step is to bring the glue transfer roll having the glue attached to the surface into contact with the gluing surface of the first belt and / or the second belt, and rotate the glue transfer roll. However, an embodiment in which gluing is continuously performed on the gluing surface is preferable. 7 and 8 show an embodiment in which the glue transfer unit 35 uses the above-described glue transfer roll 53 to glue the first belt-like paper 11 or the second belt-like paper 21 to the gluing surface 23. As can be understood from the usage pattern of the glue transfer roll 53 shown in FIGS. 7 and 8, in the embodiment using the glue transfer roll 53, the transfer roll 53 depends on the mode of partial gluing to the gluing surface 23. A convex portion 57 may be provided on the surface.

具体的に説明すると、糊転写ロール５３を用いる糊付け工程は、例えば、以下に例示する糊転写部３５を備えた紙管製造装置３１により実施できる。図７にて示す糊転写部３５は、糊転写ロール５３の他に、糊供給ロール５１、プレスロール５４、糊供給部５５、及び糊量調節板５６を主要な構成とする。糊供給部５５は、糊４が収容された皿形状の部材である。糊供給ロール５１は、円筒形状の部材であり、軸を水平方向に合わせ、糊供給ロール５１の外周に糊４を付着できるように、一部が糊供給部５５に収容された糊４に浸される形態にて配置されている。糊供給ロール５１が軸を中心に回転することにより、糊供給ロール５１の表面では、糊４が連続的に付着する。また、糊量調節板５６は、糊供給部５５から糊転写ロール５３へ向かう回転の途中において、糊供給ロール５１の表面に接触させ、糊供給ロール５１の表面に付着した過剰な糊４を取り除く働きを備える。糊転写ロール５３は、凸部５７及び凹部５８のある表面を有した円筒形状の部材であり、糊供給ロール５１の軸と同一方向の軸を有し、糊供給ロール５１の上方に互いの表面を接触させた状態で配置されている。糊転写ロール５３が糊供給ロール５１と同期して回転することにより、糊転写ロール５３の表面の凸部５７には、糊供給ロール５１の表面に付着した糊４が転写される。糊転写ロール５３の表面の凸部５７に付着した糊４は、先に説明したように、糊転写ロール５３の表面の凸部５７に接触している第１の帯状紙１１又は第２の帯状紙２１の糊付け面２３に転写される。図７に表す糊転写部３５では、第１の帯状紙１１又は第２の帯状紙２１の糊付け面２３への糊４の転写を安定的に行うため、糊転写ロール５３とプレスロール５４とが、第１の帯状紙１１又は第２の帯状紙２１を狭窄するように配置されている。以上の構成により、糊供給部５５に収容されている糊４が、糊供給ロール５１、糊転写ロール５３を経て、第１の帯状紙１１又は第２の帯状紙２１の糊付け面２３に付着する実施形態となっている。   More specifically, the gluing step using the glue transfer roll 53 can be performed by, for example, the paper tube manufacturing apparatus 31 including the glue transfer unit 35 exemplified below. The glue transfer unit 35 shown in FIG. 7 includes, in addition to the glue transfer roll 53, a glue supply roll 51, a press roll 54, a glue supply part 55, and a glue amount adjusting plate 56. The glue supply unit 55 is a dish-shaped member in which the glue 4 is accommodated. The glue supply roll 51 is a cylindrical member, and a part of the glue supply roll 51 is immersed in the glue 4 accommodated in the glue supply part 55 so that the axis can be aligned in the horizontal direction and the glue 4 can be attached to the outer periphery of the glue supply roll 51. Are arranged in the form. As the glue supply roll 51 rotates around the axis, the glue 4 continuously adheres to the surface of the glue supply roll 51. Further, the glue amount adjusting plate 56 is brought into contact with the surface of the glue supply roll 51 in the middle of the rotation from the glue supply unit 55 to the glue transfer roll 53, and removes excess glue 4 attached to the surface of the glue supply roll 51. Prepare for work. The glue transfer roll 53 is a cylindrical member having a surface with a convex part 57 and a concave part 58, has an axis in the same direction as the axis of the glue supply roll 51, and has a mutual surface above the glue supply roll 51. Are placed in contact with each other. As the glue transfer roll 53 rotates in synchronization with the glue supply roll 51, the glue 4 attached to the surface of the glue supply roll 51 is transferred to the convex portions 57 on the surface of the glue transfer roll 53. As described above, the glue 4 attached to the convex portion 57 on the surface of the glue transfer roll 53 is in contact with the convex portion 57 on the surface of the glue transfer roll 53, or the second belt shape. It is transferred to the gluing surface 23 of the paper 21. In the glue transfer unit 35 shown in FIG. 7, in order to stably transfer the glue 4 to the gluing surface 23 of the first belt-like paper 11 or the second belt-like paper 21, a glue transfer roll 53 and a press roll 54 are provided. The first belt-like paper 11 or the second belt-like paper 21 is disposed so as to be narrowed. With the above configuration, the glue 4 accommodated in the glue supply unit 55 adheres to the glued surface 23 of the first belt-like paper 11 or the second belt-like paper 21 via the glue supply roll 51 and the glue transfer roll 53. It is an embodiment.

また、本発明の製造方法の糊付け工程では、糊付け面２３へ、縞模様状及び／又は水玉模様状にて糊付けすることにより、糊付け面２３へ部分的に糊付けする実施形態ともできる（縞模様状及び水玉模様状の詳細は先述、図９Ａ〜９Ｅ及び１０Ａ〜１０Ｃ参照）。上述の糊転写ロール５３を使用する実施形態では、糊転写ロール５３の表面の凸部５７の分布を縞模様状あるいは水玉模様状することにより、縞模様状及び／又は水玉模様状での糊付けが実施可能となる。図８は、糊転写ロール５３を使用して、糊付け面２３へ縞模様状に糊付けする実施例を、糊付け面２３に対向した側から見た模式図である。   Further, in the gluing step of the manufacturing method of the present invention, the gluing surface 23 may be partially glued to the gluing surface 23 by gluing the gluing surface 23 in a striped pattern and / or polka dot pattern (striped pattern shape). The details of the polka dot pattern are as described above, FIGS. 9A to 9E and 10A to 10C). In the embodiment using the glue transfer roll 53 described above, the distribution of the convex portions 57 on the surface of the glue transfer roll 53 is striped or polka dots so that the paste can be glued in a striped pattern and / or a polka dot pattern. Can be implemented. FIG. 8 is a schematic view of an embodiment in which a glue transfer roll 53 is used to glue the gluing surface 23 in a striped pattern as viewed from the side facing the gluing surface 23.

第１の筒状体１２の外周面１４となる第１の帯状体１１の面を糊付け面２３とし、第１の帯状紙１１の糊付け面２３へ部分的に糊付けする実施形態は、第１巻付け工程前に上述の方法にて糊付けする実施形態、あるいは第１巻付け工程後で第２巻付け工程前に、芯棒４１に巻付いている第１の筒状体１２の外周面１４へ部分的に糊付けする実施形態とできる。   The embodiment in which the surface of the first belt-like body 11 that becomes the outer peripheral surface 14 of the first cylindrical body 12 is used as the glue surface 23 and partially glued to the glue surface 23 of the first belt-like paper 11 is described in Volume 1 To the outer peripheral surface 14 of the first cylindrical body 12 wound around the core rod 41, in the embodiment in which the above-described method is applied before the attaching process, or after the first winding process and before the second winding process. It can be an embodiment that is partially glued.

Ｂ‐２‐３．第２巻付け工程：
本発明の製造方法の第２巻付け工程では、糊付け工程後、第１の筒状体１２の外周面１４に第２の帯状紙２１を螺旋状に巻回して第２の筒状体２２を形成することにより、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とを接着させ、第１の筒状体１２と第２の筒状体２２とが積層している紙管１を形成できる限り特に限定されず、作業環境などに対応した所望の実施形態とできる。第２巻付け工程において、第２の帯状紙２１を巻付ける実施形態は、上述の第１巻付け工程と基本的に同じ構成とすることが可能である。 B-2-3. Second winding process:
In the second winding step of the manufacturing method of the present invention, after the gluing step, the second strip 22 is spirally wound around the outer peripheral surface 14 of the first cylindrical body 12 to form the second cylindrical body 22. By forming, the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are bonded, and the first cylindrical body 12 and the second cylindrical body 22 Is not particularly limited as long as the paper tube 1 laminated with can be formed, and a desired embodiment corresponding to the working environment can be obtained. In the second winding step, the embodiment in which the second belt-like paper 21 is wound can have basically the same configuration as the first winding step described above.

Ｂ‐２‐４．切断工程：
本発明の製造方法の切断工程では、上述の第２巻付け工程を経て作製された紙管１を所望の長さに切断できる限り特に限定されず、作業環境などに対応した所望の実施形態とできる。例えば、図６にて表す紙管製造装置３１では、推進ベルト６２からの付勢により一定速度にて紙管１を推進させ、切断部３６において、一定周期で繰り返し往復駆動する切断刃７１によって、芯棒４１の端から突出した紙管１を所定の長さに切断していく実施形態を備える。 B-2-4. Cutting process:
In the cutting process of the manufacturing method of the present invention, there is no particular limitation as long as the paper tube 1 manufactured through the above-described second winding process can be cut to a desired length, and the desired embodiment corresponding to the working environment and the like it can. For example, in the paper tube manufacturing apparatus 31 shown in FIG. 6, the paper tube 1 is propelled at a constant speed by urging from the propulsion belt 62, and the cutting blade 71 that repetitively drives reciprocating at a constant period in the cutting unit 36, In this embodiment, the paper tube 1 protruding from the end of the core bar 41 is cut into a predetermined length.

以上の工程を経て、本発明の製造方法は、例えば、図１及び図５Ａにて示すロール状ペーパー用紙管１のように、第１の帯状紙１１が螺旋状に巻回されて筒形の形状とされた第１の筒状体１２と、第１の筒状体１２の外周面１４を螺旋状に巻回されて筒形の形状とされた第２の筒状体２２と、から構成され、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とが部分的に接着し、第１の筒状体１２と第２の筒状体２２とが積層する筒状体が保持されているロール状ペーパー用紙管１を製造できる。   Through the above steps, the manufacturing method according to the present invention has a cylindrical shape in which, for example, the first strip 11 is spirally wound like the rolled paper sheet tube 1 shown in FIGS. 1 and 5A. 1st cylindrical body 12 made into the shape, and 2nd cylindrical body 22 by which the outer peripheral surface 14 of the 1st cylindrical body 12 was helically wound, and was made into the cylindrical shape, and is comprised. The outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 are partially bonded to each other, and the first cylindrical body 12 and the second cylindrical body 22 The roll-shaped paper sheet tube 1 in which the cylindrical body on which the sheets are stacked can be manufactured.

Ｂ‐３．接着のない断面が所定間隔にて繰り返し存在する紙管の製造方法：
本発明の製造方法では、図５Ａにて表したロール状ペーパー用紙管１のように、紙管１の軸方向２に対して垂直な断面でみたとき、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４との接着のない、紙管１の軸方向２に所定幅のリング状帯状部６が、紙管１の軸方向２において所定間隔にて繰り返し存在するロール状ペーパー用紙管１も製造できる。以下、図５Ａに示すロール状ペーパー用紙管１を参照し説明する。 B-3. A method for producing a paper tube in which cross sections without adhesion are repeatedly present at predetermined intervals:
In the manufacturing method of the present invention, the outer peripheral surface of the first cylindrical body 12 when viewed in a cross section perpendicular to the axial direction 2 of the paper tube 1 as in the rolled paper paper tube 1 shown in FIG. 5A. 14 and the inner peripheral surface 24 of the second cylindrical body 22, the ring-shaped strip 6 having a predetermined width in the axial direction 2 of the paper tube 1 is formed at predetermined intervals in the axial direction 2 of the paper tube 1. A roll-shaped paper sheet tube 1 that repeatedly exists can also be manufactured. Hereinafter, description will be made with reference to the roll-shaped paper sheet tube 1 shown in FIG. 5A.

まず、図５Ａの側面図にて表されたロール状ペーパー用紙管１を構成する第２の帯状紙２１について説明する。図５Ａは、本発明のロール状ペーパー用紙管１の側面図であり、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４とを接着させるための糊付け部５を透視して表したものである。図５Ａ中、斑点模様にて示された領域は、糊付け部５を表している。図５Ａに示すロール状ペーパー用紙管１は、第２の帯状紙２１が同一ピッチで規則的に巻回され、図４Ｂに示すように前後の螺旋ピッチを構成する紙同士が側端２５を揃えて並走する形態となっている。なお、第２の筒状体２２において、第２の帯状紙２１は、第２の帯状紙２１の長手方向と紙管１の軸方向２に垂直な方向とが傾斜角θを有して巻回されている。図５Ａに示すロール状ペーパー用紙管１では、糊付けされていないリング状帯状部６が、第２の帯状紙２１の螺旋ピッチで１ピッチ毎に現れる形態である。図５Ａの側面図で示したロール状ペーパー用紙管１を構成する第２の帯状紙２１について、連続する螺旋ピッチの３ピッチ分、ピッチＸ〜Ｚの部分を展開すると図５Ｂのように表される。なお、図５Ｂ中の巻回が展開されたピッチＸ〜Ｚの部分の第２の帯状紙２１の糊付け面２３において、斑点模様にて示された領域は、糊付け部５を表している。例えば、図５Ｂの第２の帯状紙２１の糊付け面２３のピッチＹの領域を見て理解できるように、図５Ａの側面図にて表されたピッチＹ中のリング状帯状部６は、第２の帯状紙２１の糊付け面２３上のピッチＹの領域において、第２の帯状紙２１の長手方向に対して傾斜角θを有して斜めに横断する帯状の糊付されない非接着部３０によって実現される。なお、図５Ｂでは、破線により芯棒４１を表し、後述の第２巻付け工程において、第２の帯状紙２１のピッチＹの領域が巻付けられる状態を表している。すなわち、紙管１において、糊付けされていないリング状帯状部６を、第２の筒状体２２の螺旋ピッチにて１ピッチ毎に形成するためには、上述の傾斜を有する帯状の非接着部３０が接着面２３に１ピッチ分ごとに現れるように糊付けを実施すればよいことになる。なお、紙管１を用いて製造されるロール状ペーパーの製品の幅に応じて、リング状帯状部６の間隔を設定すればよい。   First, the second belt-like paper 21 constituting the rolled paper paper pipe 1 shown in the side view of FIG. 5A will be described. FIG. 5A is a side view of the roll-shaped paper sheet tube 1 of the present invention, and glue for bonding the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22. The part 5 is seen through. In FIG. 5A, a region indicated by a speckled pattern represents the pasting portion 5. 5A, the second belt-like paper 21 is regularly wound at the same pitch, and the papers constituting the front and rear spiral pitch align the side edges 25 as shown in FIG. 4B. It is a form that runs in parallel. In the second cylindrical body 22, the second strip 21 is wound with an inclination angle θ between the longitudinal direction of the second strip 21 and the direction perpendicular to the axial direction 2 of the paper tube 1. It has been turned. In the roll-shaped paper sheet tube 1 shown in FIG. 5A, the ring-shaped band-shaped portion 6 that is not glued appears at every pitch of the spiral pitch of the second band-shaped paper 21. When the second strip-shaped paper 21 constituting the roll-shaped paper sheet tube 1 shown in the side view of FIG. 5A is expanded by three consecutive spiral pitches, the pitches X to Z are expressed as shown in FIG. 5B. The In addition, in the gluing surface 23 of the 2nd strip | belt-shaped paper 21 of the part of the pitch XZ where the winding in FIG. 5B was expand | deployed, the area | region shown with the spot pattern represents the gluing part 5. FIG. For example, as can be understood by looking at the area of the pitch Y of the glued surface 23 of the second band 21 in FIG. 5B, the ring-shaped band 6 in the pitch Y shown in the side view of FIG. In the region of the pitch Y on the gluing surface 23 of the second band-shaped paper 21, the band-shaped non-adhesive portion 30 that has an inclination angle θ with respect to the longitudinal direction of the second band-shaped paper 21 and crosses obliquely. Realized. In FIG. 5B, the core rod 41 is represented by a broken line, and a state in which the region of the pitch Y of the second belt-like paper 21 is wound in the second winding step described later is shown. That is, in the paper tube 1, in order to form the ring-shaped band-shaped portion 6 that is not glued at every pitch with the helical pitch of the second cylindrical body 22, the band-shaped non-adhesive portion having the above-described inclination is formed. Gluing may be performed so that 30 appears on the bonding surface 23 every one pitch. In addition, what is necessary is just to set the space | interval of the ring-shaped strip | belt-shaped part 6 according to the width | variety of the product of the roll-shaped paper manufactured using the paper tube 1. FIG.

図８は、図６にて示す紙管製造装置１の糊転写部３５を表したものである。図８にて示す糊転写部３５は、第２の帯状紙２１の糊付け面２３に対して螺旋ピッチの１ピッチ分を単位として規則的な糊付けをしている。図８にて示す規則的な糊付を実現するためには、まず、糊転写ロール５３の回転方向での外周の長さが、螺旋の１ピッチ分の第２の帯状紙２１の長さの倍数となるように設定する。さらに、糊転写ロール５３の表面において、糊転写ロール５３の回転方向に対して図５Ｂにて示す傾斜角θにて傾斜した溝６０（凹部５８）を設ける。転写ロール５３の表面において、溝６０は、回転方向でちょうど螺旋ピッチで１ピッチ分の第２の帯状紙２１の長さ毎の間隔に設ける。以上の形態を備える糊転写ロール５３を図７にて示す糊転写部３５に設置して糊付け工程を実施することにより、図５Ｂ及び図８にて表した第２の帯状紙２１の糊付け面２３のように、第２の帯状紙２１の長手方向に対して傾斜角θを有し、糊付されない、帯状の非接着部３０が所定間隔にて繰り返し現れる糊付けが実現できる。   FIG. 8 shows the glue transfer part 35 of the paper tube manufacturing apparatus 1 shown in FIG. The glue transfer unit 35 shown in FIG. 8 performs regular gluing on the gluing surface 23 of the second belt-like paper 21 in units of one helical pitch. In order to realize regular gluing shown in FIG. 8, first, the length of the outer circumference in the rotational direction of the glue transfer roll 53 is equal to the length of the second belt-like paper 21 corresponding to one pitch of the spiral. Set to be a multiple. Further, on the surface of the glue transfer roll 53, a groove 60 (concave part 58) inclined at an inclination angle θ shown in FIG. 5B with respect to the rotation direction of the glue transfer roll 53 is provided. On the surface of the transfer roll 53, the grooves 60 are provided at intervals corresponding to the length of the second belt-like paper 21 corresponding to one pitch with a helical pitch in the rotation direction. The glue transfer roll 53 having the above configuration is installed in the glue transfer section 35 shown in FIG. 7 and the glueing process is performed, whereby the glue surface 23 of the second belt-like paper 21 shown in FIGS. 5B and 8. As described above, it is possible to realize the gluing that has the inclination angle θ with respect to the longitudinal direction of the second band-shaped paper 21 and is repeatedly non-glued and the band-shaped non-adhesive portions 30 repeatedly appear at predetermined intervals.

続いて、第２巻付け工程において、上述の糊付け工程を経た第２の帯状紙２１を、第２の帯状紙２１の長手方向と芯棒４１の軸に垂直な方向とが上述の傾斜角θと略同一の傾斜を有するように、第１の筒状体１２の外周面１４へ螺旋状に巻付ける。上述の「傾斜角θと略同一」とは、紙管１のリング状帯状部６おいて、第１の筒状体１２の外周面１４と第２の筒状体２２の内周面２４との接着のないような、紙管１の軸方向２に垂直な断面が、必ず１つは取れる程度に、第２の帯状紙２１の長手方向と芯棒４１の軸に垂直な方向とが傾斜角θと略同一の傾斜であることを意味する。以上の製造方法から、リング状帯状部６が、紙管１の軸方向２において所定間隔にて繰り返し存在するロール状ペーパー用紙管１を製造できる。   Subsequently, in the second winding step, the second belt-like paper 21 that has been subjected to the above-described gluing step has the above-described inclination angle θ between the longitudinal direction of the second belt-like paper 21 and the direction perpendicular to the axis of the core rod 41. And spirally wound around the outer peripheral surface 14 of the first cylindrical body 12 so as to have substantially the same inclination. The above-mentioned “substantially the same as the inclination angle θ” refers to the outer peripheral surface 14 of the first cylindrical body 12 and the inner peripheral surface 24 of the second cylindrical body 22 in the ring-shaped strip 6 of the paper tube 1. The longitudinal direction of the second belt-like paper 21 and the direction perpendicular to the axis of the core rod 41 are inclined so that one cross section perpendicular to the axial direction 2 of the paper tube 1 can be taken without fail. It means that the inclination is substantially the same as the angle θ. From the above manufacturing method, it is possible to manufacture the roll-shaped paper sheet tube 1 in which the ring-shaped band-like portion 6 is repeatedly present at a predetermined interval in the axial direction 2 of the paper tube 1.

以下、本発明を実施例に基づいてさらに詳細に説明するが、本発明はこれらの実施例に限定されるものではない。   EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to these Examples.

（実施例１）
第１の帯状紙１１及び第２の帯状紙２１として、長さ約３０００ｍ、幅８．３ｃｍ、及び厚さ０．２３ｍｍの厚紙を用いた。第１の帯状紙１１及び第２の帯状紙２１は、ロール状に巻取り、それぞれ第１原紙ロール８１及び第２原紙ロール８２とした。 Example 1
As the first belt-like paper 11 and the second belt-like paper 21, thick paper having a length of about 3000 m, a width of 8.3 cm, and a thickness of 0.23 mm was used. The first belt-like paper 11 and the second belt-like paper 21 were wound in a roll shape to be a first base paper roll 81 and a second base paper roll 82, respectively.

本実施例では、図６にて概要を示す紙管製造装置３１を使用した。第１原紙ロール８１及び第２原紙ロール８２は、それぞれ第１帯状紙供給部３７及び第２帯状紙供給部３８に設置した。芯棒４１は、直径３．８ｃｍ、長さ１．０ｍの円柱状のものを使用した。また、第１の帯状紙１１及び第２の帯状紙２１が約１００ｍ／分の速度にて芯棒４１に向かって供給されるように、推進ベルト６２を駆動した。   In this embodiment, the paper tube manufacturing apparatus 31 whose outline is shown in FIG. 6 is used. The first base paper roll 81 and the second base paper roll 82 were installed in the first strip paper supply unit 37 and the second strip paper supply unit 38, respectively. As the core rod 41, a cylindrical rod having a diameter of 3.8 cm and a length of 1.0 m was used. Further, the propulsion belt 62 was driven so that the first belt-like paper 11 and the second belt-like paper 21 were supplied toward the core rod 41 at a speed of about 100 m / min.

第１帯状紙供給部３７から送られた第１の帯状紙１１は、第１巻付け部３２において、第１の帯状紙１１の長手方向と芯棒４１の軸に垂直な方向とが約４４度の傾斜角θを有する構成にて芯棒４の表面に巻付け、第１の筒状体１２を形成した。   The first strip 11 fed from the first strip supply unit 37 is about 44 in the first winding section 32 in which the longitudinal direction of the first strip 11 and the direction perpendicular to the axis of the core rod 41 are about 44. The first cylindrical body 12 was formed by wrapping around the surface of the core rod 4 with a configuration having an inclination angle θ.

糊転写部３５では、直径１５．６６ｃｍ（６ピッチ分）の糊転写ロール５３を使用した。また、糊転写ロール５３の外周には、糊転写ロール５３の回転方向（円周方向）に対して約４４度の傾斜角を有する幅１ｃｍの溝６０を設け、溝６０は転写ロール５３の回転軸を中心とした中心角６０度ごとに６つ設けた（１ピッチに１個の非接着部３０が形成される）。第２帯状紙供給部３８から送られた第２の帯状紙２１は、その長手方向を転写ロール５３の回転方向と一致させ、糊転写ロール５３を回転させながら糊転写ロール５３の表面と第２の帯状紙２１の糊付け面２３とを接触させることにより、第２の帯状紙２１の糊付け面２３に糊４を連続的に転写した。なお、第２の帯状紙２１を送る速度と糊転写ロール５３の回転速度は同期させた。糊４は、酢酸ビニル樹脂系の糊を用いた。   In the glue transfer portion 35, a glue transfer roll 53 having a diameter of 15.66 cm (for 6 pitches) was used. Further, on the outer periphery of the glue transfer roll 53, a groove 60 having a width of 1 cm having an inclination angle of about 44 degrees with respect to the rotation direction (circumferential direction) of the glue transfer roll 53 is provided. Six are provided for every 60 degrees of the central angle centered on the axis (one non-adhesive portion 30 is formed in one pitch). The second belt-like paper 21 sent from the second belt-like paper supply unit 38 has its longitudinal direction coincided with the rotation direction of the transfer roll 53, and while rotating the glue transfer roll 53, the surface of the glue transfer roll 53 and the second belt paper 21. The glue 4 was continuously transferred to the gluing surface 23 of the second belt-like paper 21 by bringing it into contact with the gluing surface 23 of the belt-like paper 21. The speed at which the second belt-like paper 21 is fed and the rotational speed of the glue transfer roll 53 are synchronized. As the paste 4, a vinyl acetate resin-based paste was used.

第２の帯状紙２１は、第２巻付け部３３において、第１の筒状体１２の外周面１４に第２の帯状紙２１の接着面２３を接触させて、第２の帯状紙２１を第１の筒状体１２の外周面１４に螺旋状に巻付け、第２の筒状体２２を形成した。この際、第２の帯状紙２１の巻付けは、第２の帯状紙２１の長手方向と芯棒４１の軸に垂直な方向とが約４４度の傾斜角を有する構成とし、第１の筒状体１２を構成する第１の帯状紙１１の螺旋回転に対して、第２の筒状体２２を構成する第２の帯状紙２１の螺旋回転が０．５分ピッチずれる形態となるように行った。   In the second winding portion 33, the second strip 21 is brought into contact with the outer peripheral surface 14 of the first cylindrical body 12 with the adhesive surface 23 of the second strip 21, and the second strip 21 is The second cylindrical body 22 was formed by spirally winding the outer peripheral surface 14 of the first cylindrical body 12. At this time, the winding of the second belt-like paper 21 is configured such that the longitudinal direction of the second belt-like paper 21 and the direction perpendicular to the axis of the core rod 41 have an inclination angle of about 44 degrees. The spiral rotation of the second belt-like paper 21 constituting the second cylindrical body 22 is shifted by 0.5 minutes with respect to the spiral rotation of the first belt-like paper 11 constituting the belt-like body 12. went.

第１の筒状体１２と第２の筒状体２２とが積層している状態で芯棒４１に巻付いた紙管１は、推進ベルト６２による付勢によって切断部３６に向かって推進させた。そして、芯棒４１の端から突き出した紙管１を、切断部３６に設けた切断刃７１により２．６ｍ間隔で切断した。   The paper tube 1 wound around the core rod 41 in a state where the first cylindrical body 12 and the second cylindrical body 22 are stacked is propelled toward the cutting portion 36 by the urging force of the propulsion belt 62. It was. Then, the paper tube 1 protruding from the end of the core bar 41 was cut at intervals of 2.6 m by a cutting blade 71 provided in the cutting part 36.

以上の工程から、第２の帯状紙２２の螺旋ピッチで１ピッチ毎にリング状帯状部６が現れるロール状ペーパー用紙管１を得た。   From the above process, the roll-shaped paper sheet tube 1 in which the ring-shaped band-like portion 6 appears at every pitch with the spiral pitch of the second belt-like paper 22 was obtained.

本発明は、トイレットペーパーやキッチンタオルなどの紙が巻取られたロール状ペーパーの芯を構成するロール状ペーパー用紙管及びその製造方法として利用できる。   INDUSTRIAL APPLICABILITY The present invention can be used as a roll-shaped paper sheet tube constituting a core of a roll-shaped paper around which paper such as toilet paper or kitchen towel is wound, and a manufacturing method thereof.

本発明のロール状ペーパー用紙管を一部展開した模式図である。It is the schematic diagram which expanded a part of rolled paper paper tube of the present invention. 図１中のＡ‐Ａ’断面における本発明のロール状ペーパー用紙管の断面図である。FIG. 2 is a cross-sectional view of the roll-shaped paper sheet tube of the present invention in the A-A ′ cross section in FIG. 1. 従来公知のロール状ペーパー用紙管の断面図である。It is sectional drawing of a conventionally well-known roll-shaped paper paper tube. 本発明を構成する第１の筒状体又は第２の筒状体を模式的に表した図である。It is the figure which represented typically the 1st cylindrical body or 2nd cylindrical body which comprises this invention. 本発明を構成する第１の筒状体又は第２の筒状体を模式的に表した図である。It is the figure which represented typically the 1st cylindrical body or 2nd cylindrical body which comprises this invention. 本発明を構成する第１の筒状体又は第２の筒状体を模式的に表した図である。It is the figure which represented typically the 1st cylindrical body or 2nd cylindrical body which comprises this invention. 糊付け部を透視して表した本発明のロール状ペーパー用紙管の一形態を示す側面図である。It is a side view which shows one form of the roll-shaped paper sheet pipe | tube of this invention represented by seeing through the gluing part. 図５Ａに示す本発明のロール状ペーパー用紙管について、第２の帯状紙を一部展開した模式図である。FIG. 5B is a schematic view in which the second belt-shaped paper is partially developed with respect to the roll-shaped paper sheet tube of the present invention shown in FIG. 5A. 本発明のロール状ペーパー用紙管の製造方法を実施するための紙管製造装置の一形態を示す模式図である。It is a schematic diagram which shows one form of the paper tube manufacturing apparatus for enforcing the manufacturing method of the roll-shaped paper paper tube of this invention. 本発明における糊付け工程の実施に用いる糊転写部に関し、糊転写ロールを用いる一形態を表した模式図である。It is the schematic diagram showing the form which uses a glue transfer roll regarding the glue transfer part used for implementation of the gluing process in this invention. 第２の帯状紙の糊付け面に対して、糊転写ロールを用いて糊を部分的に付着させる一形態を模式的に表した図である。It is the figure which represented typically the form which adheres glue partially using the glue transfer roll with respect to the pasting surface of 2nd strip | belt-shaped paper. 縞模様状の糊付けの例を表した図である。It is a figure showing the example of the gluing of striped pattern shape. 縞模様状の糊付けの例を表した図である。It is a figure showing the example of the gluing of striped pattern shape. 縞模様状の糊付けの例を表した図である。It is a figure showing the example of the gluing of striped pattern shape. 縞模様状の糊付けの例を表した図である。It is a figure showing the example of the gluing of striped pattern shape. 縞模様状の糊付けの例を表した図である。It is a figure showing the example of the gluing of striped pattern shape. 水玉模様状の糊付けの例を表した図である。It is a figure showing the example of the polka dot-like paste. 水玉模様状の糊付けの例を表した図である。It is a figure showing the example of the polka dot-like paste. 水玉模様状の糊付けの例を表した図である。It is a figure showing the example of the polka dot-like paste.

符号の説明Explanation of symbols

１：紙管、２：紙管の軸方向、３：紙管の軸方向に対して垂直な断面、４：糊、５：糊付け部、６：リング状帯状部、１１：第１の帯状紙、１２：第１の筒状体、１３：第１の帯状紙の側端、１４：第１の筒状体の外周面、２１：第２の帯状紙、２２：第２の筒状体、２３：糊付け面、２４：第２の筒状体の内周面、２５：第２の帯状紙の側端、３０：非接着部、３１：紙管製造装置、３２：第１巻付け部、３３：第２巻付け部、３５：糊転写部、３６：切断部、３７：第１帯状紙供給部、３８：第２帯状紙供給部、４１：芯棒、５１：糊供給ロール、５３：糊転写ロール、５４：プレスロール、５５：糊供給部、５６：糊量調節板、５７：凸部、５８：凹部、６０：溝、６２：推進ベルト、７１：切断刃、８１：第１原紙ロール、８２：第２原紙ロール。 1: Paper tube, 2: Axial direction of the paper tube, 3: Cross section perpendicular to the axial direction of the paper tube, 4: Glue, 5: Glued portion, 6: Ring-shaped strip, 11: First strip-shaped paper 12: 1st cylindrical body, 13: Side edge of 1st strip | belt-shaped paper, 14: Outer peripheral surface of 1st cylindrical body, 21: 2nd strip | belt-shaped paper, 22: 2nd cylindrical body, 23: Gluing surface, 24: Inner peripheral surface of the second cylindrical body, 25: Side edge of the second belt-shaped paper, 30: Non-adhesive part, 31: Paper tube manufacturing device, 32: First winding part, 33: Second winding unit, 35: Glue transfer unit, 36: Cutting unit, 37: First strip-shaped paper supply unit, 38: Second strip-shaped paper supply unit, 41: Core rod, 51: Glue supply roll, 53: Glue transfer roll, 54: Press roll, 55: Glue supply unit, 56: Glue amount adjusting plate, 57: Protrusion, 58: Recess, 60: Groove, 62: Propulsion belt, 71: Cutting blade, 81: First base paper Roll, 82: No. Paper roll.

Claims (4)

第１の帯状紙が螺旋状に巻回されて筒形の形状とされた第１の筒状体と、
前記第１の筒状体の外周面に螺旋状に巻回されて筒形の形状とされた第２の筒状体と、から構成され、
前記第１の筒状体の前記外周面と前記第２の筒状体の内周面とが部分的に接着され、前記第１の筒状体と前記第２の筒状体とが積層する筒状体として保持されている、ロール状ペーパー用紙管であり、前記ロール状ペーパー用紙管の軸方向に対して垂直な断面でみたとき、前記外周面と前記内周面との接着のない、前記軸方向に所定幅のリング状帯状部が、前記ロール状ペーパー用紙管の軸方向において所定間隔にて繰り返し存在する、ロール状ペーパー用紙管。 A first tubular body in which a first strip-shaped paper is spirally wound into a tubular shape;
A second cylindrical body that is spirally wound around the outer peripheral surface of the first cylindrical body to form a cylindrical shape,
The outer peripheral surface of the first cylindrical body and the inner peripheral surface of the second cylindrical body are partially bonded, and the first cylindrical body and the second cylindrical body are laminated. It is a roll-shaped paper sheet tube held as a cylindrical body , and when seen in a cross section perpendicular to the axial direction of the roll-shaped paper sheet tube, there is no adhesion between the outer peripheral surface and the inner peripheral surface, A roll-shaped paper sheet tube in which ring-shaped strips having a predetermined width in the axial direction are repeatedly present at predetermined intervals in the axial direction of the roll-shaped paper sheet tube. 前記外周面と前記内周面との部分的な接着は、縞模様状及び／又は水玉模様状である、請求項１に記載のロール状ペーパー用紙管。   The rolled paper sheet tube according to claim 1, wherein the partial adhesion between the outer peripheral surface and the inner peripheral surface is a striped pattern and / or a polka dot pattern. 第１の帯状紙からなる第１の筒状体と第２の帯状紙からなる第２の筒状体とが積層しているロール状ペーパー用紙管の製造方法であって、
芯棒の表面に前記第１の帯状紙を螺旋状に巻付けて前記第１の筒状体を形成する第１巻付け工程と、
前記第１の筒状体の外周面となる前記第１の帯状紙の面及び前記第２の筒状体の内周面となる第２の帯状紙の面の少なくともいずれかを糊付け面とし、前記糊付け面へ部分的に糊付けする糊付け工程と、
前記糊付け工程後、前記第１の筒状体の外周面に前記第２の帯状紙を螺旋状に巻回して第２の筒状体を形成することにより、前記第１の筒状体の前記外周面と前記第２の筒状体の前記内周面とを接着させ、前記第１の筒状体と前記第２の筒状体とが積層している紙管を形成する第２巻付け工程と、
前記紙管を所望の長さに切断する切断工程と、を有し、
前記糊付け工程において、前記第２の筒状体の前記内周面となる前記第２の帯状紙の面を前記糊付け面とし、前記第２の帯状紙の長手方向に対して傾斜角θを有し、糊付けされない、帯状の非接着部が、前記第２の帯状紙の長手方向において所定間隔にて繰り返し現れるように前記糊付け面へ糊付けを行い、
前記第２巻付け工程において、前記第２の帯状紙を、前記第２の帯状紙の前記長手方向と前記芯棒の軸に垂直な方向とが前記傾斜角θと略同一の傾斜を有するように、前記第１の筒状体の前記外周面に螺旋状に巻回する、ロール状ペーパー用紙管の製造方法。 A method for producing a roll-shaped paper sheet tube in which a first cylindrical body made of a first belt-like paper and a second cylindrical body made of a second belt-like paper are laminated,
A first winding step of forming the first tubular body by spirally winding the first belt-like paper around the surface of the core rod;
The gluing surface is at least one of the surface of the first belt-like paper that becomes the outer peripheral surface of the first cylindrical body and the surface of the second belt-like paper that becomes the inner peripheral surface of the second cylindrical body, A gluing step of partially gluing the gluing surface;
After the gluing step, the second belt-shaped paper is spirally wound around the outer peripheral surface of the first tubular body to form a second tubular body, whereby the first tubular body Second winding to form a paper tube in which an outer peripheral surface and the inner peripheral surface of the second cylindrical body are bonded to each other, and the first cylindrical body and the second cylindrical body are laminated. Process,
Cutting the paper tube into a desired length, and
In the gluing step, the surface of the second band-shaped paper that is the inner peripheral surface of the second cylindrical body is used as the gluing surface, and has an inclination angle θ with respect to the longitudinal direction of the second band-shaped paper. Then, the non-adhesive band-shaped non-adhesive portion is glued to the gluing surface so that it repeatedly appears at a predetermined interval in the longitudinal direction of the second belt-shaped paper,
In the second winding step, the second belt-like paper is so inclined that the longitudinal direction of the second belt-like paper and the direction perpendicular to the axis of the core rod are substantially the same as the inclination angle θ. A method for manufacturing a roll-shaped paper sheet tube, which is spirally wound around the outer peripheral surface of the first cylindrical body. 前記糊付け工程において、前記糊付け面へ、縞模様状及び／又は水玉模様状に糊付けする、請求項３に記載のロール状ペーパー用紙管の製造方法。   The method for producing a roll-shaped paper sheet tube according to claim 3, wherein in the gluing step, the gluing surface is glued in a striped pattern and / or a polka dot pattern.
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