JP2009083101A - Method and apparatus for producing corrugated sheet, method for producing heating element, and heating element - Google Patents

Method and apparatus for producing corrugated sheet, method for producing heating element, and heating element Download PDF

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JP2009083101A
JP2009083101A JP2006006813A JP2006006813A JP2009083101A JP 2009083101 A JP2009083101 A JP 2009083101A JP 2006006813 A JP2006006813 A JP 2006006813A JP 2006006813 A JP2006006813 A JP 2006006813A JP 2009083101 A JP2009083101 A JP 2009083101A
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roll
sheet
corrugated sheet
corrugated
convex
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Hisahiro Momo
寿浩 百々
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Mycoal Products Corp
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Mycoal Products Corp
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Priority to JP2006006813A priority Critical patent/JP2009083101A/en
Priority to PCT/JP2007/050440 priority patent/WO2007081013A1/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02Compresses or poultices for effecting heating or cooling
    • A61F7/03Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A61F7/032Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18Thermoforming apparatus
    • B29C51/20Thermoforming apparatus having movable moulds or mould parts
    • B29C51/22Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
    • B29C51/225Thermoforming apparatus having movable moulds or mould parts rotatable about an axis mounted on a vacuum drum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/18Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20Corrugating; Corrugating combined with laminating to other layers
    • B31F1/22Making webs in which the channel of each corrugation is longitudinal with the web feed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/36Moistening and heating webs to facilitate mechanical deformation and drying deformed webs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F2007/0098Heating or cooling appliances for medical or therapeutic treatment of the human body ways of manufacturing heating or cooling devices for therapy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a production apparatus and method which easily folds a sheet member into pleats of an exact waveform without creasing the sheet member while the sheet member is conveyed stably, and the permeability, elongation, and fracture of the sheet member are prevented, and also to provide a heating element. <P>SOLUTION: In the method for corrugating the sheet member by using a relief-like member, wave attachment is carried out gradually from the middle side toward the out side of the sheet member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、波形シートの製造方法及び製造装置、発熱体の製造方法並びに発熱体に関するものである。   The present invention relates to a corrugated sheet manufacturing method and manufacturing apparatus, a heating element manufacturing method, and a heating element.

シート部材を波形に曲折してなる波形シートを製造する装置として、例えば、特許文献1には、互いに平行に又は傾斜して走る複数の溝を設けた平板状の案内ヘッドと、案内ヘッドの複数の溝に沿って遊挿される複数の棒状部材を備えた平板状の抑え付けディバイスからなり、シート部材を案内ヘッドと抑え付けディバイスとの間に挟み込むようにして通過させて、シート部材に波形の多数の折り返しを形成しようとするものである。   As an apparatus for manufacturing a corrugated sheet obtained by bending a sheet member into a corrugated shape, for example, Patent Document 1 discloses a flat guide head provided with a plurality of grooves that run parallel or inclined to each other, and a plurality of guide heads. A flat plate-like holding device having a plurality of rod-like members loosely inserted along the groove, and the sheet member is passed between the guide head and the holding device so as to be corrugated. A large number of folds are to be formed.

また、特許文献2には、周方向に延設された凹溝を外周部に沿って備える受け側ロールと、受け側ロールと回転軸を平行にして隣接配置され、凹溝に遊挿される周方向に延設された突条を外周面に沿って備える複数のスリット側ロールとからなり、凹溝と突条との隙問にシート部材を挟み込んで波形に曲折させつつ、受け側ロール及びスリット側ロールの回転によりシート部材を送り出して波形シートを製造する装置が記載されている。   Further, in Patent Document 2, a receiving roll provided with a concave groove extending in the circumferential direction along the outer peripheral portion, and a circumference that is adjacently arranged with the receiving roll and the rotation axis in parallel and loosely inserted into the concave groove. A plurality of slit-side rolls provided with ridges extending in the direction along the outer peripheral surface, and sandwiching the sheet member in the gap between the concave grooves and the ridges and bending them into a corrugated shape, receiving-side rolls and slits An apparatus for producing a corrugated sheet by feeding out a sheet member by rotation of a side roll is described.

これらの用途としては、例えば生理用ナプキン、おむつ、失禁用パッド等の吸収性物品が挙げられ、該吸収性物品は、一般に表面カバーシートと裏面カバーシートとこれらの間に含まれる吸収体とからなる。これらのシート又は吸収体を構成するシート材は、波形に曲折させて波形シートとすることにより、空間を保持して液体の吸収や浸透および保持性を高め、液体分布を改善すると共に、漏れ特性を改善し、また着用の快適さや外観を向上させることが可能になる。   Examples of these applications include absorbent articles such as sanitary napkins, diapers, and incontinence pads, and the absorbent articles generally include a front cover sheet, a back cover sheet, and an absorber contained therebetween. Become. The sheet material that constitutes these sheets or absorbent bodies is bent into a corrugated sheet to form a corrugated sheet, thereby maintaining the space and improving the liquid absorption, penetration and retention, improving the liquid distribution, and leakage characteristics. It is possible to improve the wear comfort and appearance.

特許文献3に記載の装置では、案内ヘッド及び抑え付けディバイスは、シート部材に対して相対的に固定され、シート部材は搬送方向に引っ張り出して案内ヘッドと抑え付けディバイスとの間の隙間を通過させることになるため、通過時の摩擦カ等によりシート部材に大きな負荷がかかり、シート部材の伸張や破断を招く等、波形に曲折しつつ搬送する作業を安定して行うことができない問題がある。このような問題は、特に波の高さを大きく形成する場合に顕著になる。   In the apparatus described in Patent Document 3, the guide head and the pressing device are fixed relative to the sheet member, and the sheet member is pulled out in the conveying direction and passes through the gap between the guide head and the pressing device. Therefore, a large load is applied to the sheet member due to frictional force at the time of passage, and the sheet member is stretched or broken, so that there is a problem that it is not possible to stably carry the work while bending the waveform. . Such a problem becomes prominent particularly when the wave height is formed large.

特許文献4に記載の装置によれば、突条を外周面に沿って備える複数のスリット側ロールがそれぞれ独立して、受け側ロールの周面に沿って設けられているため、シート部材が点状で、受け側ロールに押しつけられる状態になり、スリット側ロール間で、シート部材が受け側ロールの外周面から浮き上がり、波形が崩れる問題があった。
一つスリット側ロールが凹溝にシート部材を受け側ロールに押し込むとその周りのシート部材が受け側ロールの周面浮き上がり、次のスリット側ロールが凹溝にシート部材を受け側ロールに押し込む時にシート部材に皺が寄り、きれいな波形に曲折しつつ搬送する作業を安定して行うことができない場合がある。特にスジ状に発熱組成部を間隔を置いて収納した発熱体用の波形状の包材はスジ状に間隔を置いて設けられた成形性発熱組成物を覆いシールするため、厳密なスジ状の形態が求める。スジ状の形態が悪いと、波状の包材がスジ状に間隔を置いて設けられた成形性発熱組成物を崩し、成形性発熱組成物の周縁部をシールする場合に崩された成形性発熱組成物の破片でシール切れを起こし、使用可能な発熱体が製造できない。
通気性を有するシート部材の通気性を変えずに、皺を発生させず、正確に、波形状を作成する必要があった。
According to the apparatus described in Patent Document 4, a plurality of slit-side rolls provided with ridges along the outer peripheral surface are independently provided along the peripheral surface of the receiving-side roll. In other words, the sheet member is pressed against the receiving side roll, and the sheet member is lifted from the outer peripheral surface of the receiving side roll between the slit side rolls.
When one slit-side roll pushes the sheet member into the concave groove and pushes it into the receiving roll, the surrounding sheet member floats up around the periphery of the receiving roll, and when the next slit-side roll pushes the sheet member into the concave groove and pushes into the side roll There is a case where the sheet member is wrinkled and the operation of conveying the sheet member while bending it into a beautiful waveform cannot be stably performed. In particular, the wavy packaging material for a heating element that contains streaky exothermic composition parts at intervals is covered and sealed with the formable exothermic composition provided at intervals in streaks. The form seeks. If the streaky shape is poor, the wavy packaging material breaks down the moldable exothermic composition provided at intervals in the form of streaks, and the formable exotherm collapsed when sealing the periphery of the moldable exothermic composition A broken piece of the composition causes the seal to break, and a usable heating element cannot be produced.
It was necessary to create a corrugated shape accurately without changing the air permeability of the sheet member having air permeability and without generating wrinkles.

一方、空気と反応して発熱する発熱剤の代表例である鉄粉、水、保水剤及び酸化助剤等からなる発熱組成物は、点火を必要とせず空気と接触するだけで簡便に発熱するため、該発熱組成物を通気性袋に収納した発熱体が広く普及している。
従来、鉄粉等を発熱源とした発熱組成物を利用した、いわゆる使い捨てカイロは扁平状の形状を持ち、充填方式で、通気性の収納袋に発熱組成物を充填して製造されてきた。使い捨てカイロは柔軟性に乏しく、使用感が悪く、柔軟性に富んだ発熱体が望まれていた。
スジ状に発熱組成部を間隔を置いて収納した柔軟性に富んだ発熱体は従来存在しなかった。
On the other hand, exothermic compositions composed of iron powder, water, water retention agents, oxidation aids, and the like, which are representative examples of exothermic agents that react with air and generate heat, simply generate heat when they come into contact with air without requiring ignition. Therefore, a heating element in which the heat generating composition is housed in a breathable bag is widely used.
Conventionally, a so-called disposable body warmer using a heat generating composition using iron powder or the like as a heat source has a flat shape, and has been manufactured by filling a heat-permeable composition into a breathable storage bag by a filling method. Disposable body warmers have poor flexibility, poor usability, and a flexible heating element has been desired.
Conventionally, there has been no flexible heating element in which exothermic composition parts are accommodated at intervals in a streak shape.

特表平10−506333号公報Japanese National Patent Publication No. 10-506333 特開平2002−144455号公報JP-A-2002-144455 特表平10−506333号公報Japanese National Patent Publication No. 10-506333 特開平2002−144455号公報JP-A-2002-144455

本発明は、シート部材を安定した状態で搬送してシート部材の通気性や伸張や破断を防止しつつ、シート部材を皺を寄らせず、正確な波形であるプリーツに容易に曲折することのできる製造装置、製造方法及び発熱体を提供することを目的とする。   The present invention allows the sheet member to be bent in an accurate corrugated pleat without causing the wrinkle of the sheet member while transporting the sheet member in a stable state to prevent the air permeability, extension and breakage of the sheet member. An object of the present invention is to provide a manufacturing apparatus, a manufacturing method, and a heating element.

本発明者は、鋭意研究を重ねた結果、上記の課題を解決し、本発明を完成したものである。
即ち、本発明の波形シートの製造方法は、請求項1に記載の通り、シート部材を凹凸状の部材を使用して波形に形成する方法であって、前記シート部材の中央側から外側に向かって漸次波付けを行うことを特徴とする。
また、本発明の発熱体の製造方法は、請求項2に記載の通り、請求項1に記載の前記波形シートを被覆材として使用し、基材上に発熱組成物成形体をスライプ状に配置し、前記発熱組成物成形体を前記被覆材により被覆し、前記発熱組成物成形体の周縁部をシールすることを特徴とする。
また、本発明の波形シートの製造装置は、請求項3に記載の通り、シート部材を挿入して波形に曲折してなる波形シートを製造する装置であって、隣接して複数の溝部が設けられた基台と、前記溝部の延出方向に回転できるように支持された押し込み部材と、前記溝部に対向する他の溝部を備え、前記他の溝部内において、前記押し込み部材は回転可能な状態で収容されるように構成された受け側部材とを備え、隣接する前記押し込み部材のうち中央側の前記押し込み部材を、外側の前記押し込み部材よりも前記シート部材の挿入側に配置するとともに、前記各押し込み部材を中央側から外側に向かって漸次排出側に向かってずらして配置されることを特徴とする。
また、請求項4に記載の本発明は、請求項3に記載の波形シートの製造装置において、前記押し込み部材を、回転ロールにより構成し、前記回転ロールを前記溝部内において、前記溝部の延出方向に隣接して配置し、中央側の前記溝部内から外側の前記溝部内の回転ロールの数を、前記外側に向かって漸次少なくしたことを特徴とする。
また、請求項5に記載の本発明は、請求項4に記載の波形シートの製造装置において、前記波形シートの底面に基材シートを接合する接合手段を備えることを特徴とする。
As a result of intensive studies, the present inventor has solved the above problems and completed the present invention.
In other words, the corrugated sheet manufacturing method of the present invention is a method of forming a corrugated sheet member using corrugated members as described in claim 1, wherein the corrugated sheet is directed outward from the center side of the sheet member. And gradually corrugating.
Moreover, the manufacturing method of the heat generating body of this invention uses the said corrugated sheet of Claim 1 as a coating | covering material as described in Claim 2, and arrange | positions a heat-generating composition molded object on a base material in a strip shape. The exothermic composition molded body is covered with the covering material, and a peripheral edge of the exothermic composition molded body is sealed.
The corrugated sheet manufacturing apparatus according to the present invention is an apparatus for manufacturing a corrugated sheet formed by inserting a sheet member and bending it into a corrugated shape, wherein a plurality of groove portions are provided adjacent to each other. And a pushing member supported so as to be rotatable in the extending direction of the groove, and another groove facing the groove, and the pushing member is rotatable in the other groove. And a receiving side member configured to be accommodated at the center, and among the adjacent pressing members, the pressing member on the center side is disposed closer to the insertion side of the sheet member than the pressing member on the outside, and Each pushing member is arranged so as to be gradually shifted from the center side toward the outside toward the discharge side.
The corrugated sheet manufacturing apparatus according to claim 4 is the corrugated sheet manufacturing apparatus according to claim 3, wherein the pushing member is constituted by a rotating roll, and the rotating roll is extended in the groove portion. It arrange | positions adjacent to a direction, The number of the rotation rolls in the said outer groove part from the inside of the said groove part on the center side was gradually decreased toward the said outer side, It is characterized by the above-mentioned.
Moreover, the present invention described in claim 5 is characterized in that in the corrugated sheet manufacturing apparatus according to claim 4, the corrugated sheet manufacturing apparatus further comprises a joining means for joining a base sheet to the bottom surface of the corrugated sheet.

本発明者は、鋭意研究を重ねた結果、上記の課題を解決し、本発明を完成したものである。
本発明の波形シートを製造する方法は、所定方向へ延びる凹部を複数有する受け側部材と、該凹部内に遊嵌される押し込み部材との間に、前記凹部の延びる方向へ走行するシート部材を介在させ、該シート部材を前記凹部内に貫入させて、該シート部材を波形に曲折してなる波形シートを製造する方法において、該受け側部材及び押し込み部材が少なくともシート部材が接触する部分が回転機能を有し、押し込み部材が複数の凸状ロールを枠に組み込んだ枠組みロールであり、前記シート部材を中央部より前記凹部に貫入させ、該シート部材の走行に連れて該シート部材の前記凹部への貫入数を漸次増加させることが好ましい。
本発明の波形シート製造装置は、シート部材を波形に曲折してなる波形シートを製造する装置であって、周方向に延設された、複数の凹部を、外周部に沿って備え、凹部は凸部によって相互に離間された受け側ロールと枠組み押し込みロールとからなり、該枠組み押し込みロールは、受け側ロールの凹部に貫入される周方向に延設され、受け側ロールと回転軸を平行にして設けられた回転可能の複数の凸状ロールを枠に取りつけた構造を有し、該枠組み押し込みロールの凸条ロールの凸部の端部及び受け側ロールの凹部の端部の少なくともと凸部と凹部とが貫入し、シート部材に接する凸部の端部と凹部の端部をアール状(円弧状)を設け、該受け側ロール及び枠組み押し込みロールの少なくともTD方向の端部において、両者間にシート部材が平面的に通過できる狭間部を有し、該受け側ロールと枠組み押し込みロールとの間にシート部材を挿入し、シート部材を挟持しつつ移動させ、該枠組み押し込みロールのシート部材の挿入口に最も近い最上流側に位置する凸状ロールが、該受け側ロールの外周部中央に位置する該凹部に貫入される位置に設けられ、下流側に位置する該凸状ロールほど、前記周面中央より外側に位置する該凹部に貫入されるされる位置に順次設けられ、該受け側ロールと該枠組み押し込みロールの隙間にシート部材を挟み込んで、凹凸形に曲折させつつ、該受け側ロールと該枠組み押し込みの凸状ロールの回転により、波形シートを送り出すことが好ましい。
また、波形シート製造装置は、前記受け側部材が、平面状に配設された複数の凸部ロール軸を有する平板枠組み受け側ロールで有り、前記押し込み部材が、平面状に配設された複数の凸部ロール軸を有する平板枠組み押し込みロールであり、平板枠組み受け側ロールと平板枠組み押し込みロールとを組み合わせた波形シートの製造装置であり、平板枠組み受け側ロールの凹部が凸部ロール間で造る凹部であり、該凹部が直線状にシート部材の送り出し方向に設けられ、平板枠組み押し込みロールの凸部ロールがシート部材の送り出し方向に複数配設され、で最上流側の第1凸部ロール軸における凸部ロール軸の凸部ロールの数が最も少なく、下流側に位置する第凸部ロール軸ほど、凸部ロール軸の凸部ロールの数が順次外側に向かって増えることが好ましい。
また、波形シート製造装置は、前記枠組み押し込みロールが、少なくとも凸状ロールの何れかの間及び端部の少なくとも1部に皺防止具を有することが好ましい。
また、波形シート製造装置は、波形に曲折して形成された前記波形シートの凹凸底面に沿って平坦な基材シートを接合する接合手段を備えることが好ましい。
本発明の発熱体の製造方法は、所定方向へ延びる凹部を複数有する受け側部材と、該凹部内に遊嵌される押し込み部材との間に、前記凹部の延びる方向へ走行するシート部材を介在させ、該シート部材を前記凹部内に貫入させて、シート部材を波形に曲折して製造した波形シートを被覆材として使い、基材上にスライプ状に設けられた発熱組成物成形体に被せ、発熱組成物成形体の周縁部をシールすることからなることが好ましい。
本発明の発熱体の製造装置は、発熱組成物を成形し、ストライブ状に複数の発熱組成物成形体を間隔をおいて基材上に積層する発熱組成物成形体体の製造装置、シート部材を波形に曲折してなる波形シートの製造装置及び基材と波形シートとをシールするシール装置とからなる発熱体の製造装置であって、波形シートの製造装置より送り出される波形シートを無端状ベルト上を搬送されているストライブ状に複数の各発熱組成物成形体を波形シートの各凸部内に収容できるように被覆し、次の工程へ搬送できるように組み込まれており、該波形シートの製造装置は、周方向に延設された、複数の凹部を、外周部に沿って備え、凹部は凸部によって相互に離間された受け側ロールと枠組み押し込みロールとからなり、該枠組み押し込みロールは、受け側ロールの回転最高点と回転方向の回転最低点との間に波形シートができる間隔を有して受け側ロールの外周に沿って設けられており、回転最低点付近において、基材と波形シートとが接触できる間隔を持って、無端状ベルトに支持された基材が受け側ロールの外周と接するように設けられており、該枠組み押し込みロールは、受け側ロールの凹部に貫入される周方向に延設され、受け側ロールと回転軸を平行にして設けられた回転可能の複数の凸状ロールを枠に取りつけた構造を有し、該枠組み押し込みロールの凸条ロールの凸部の端部及び受け側ロールの凹部の端部の少なくともと凸部と凹部とが貫入し、シート部材に接する凸部の端部と凹部の端部をアールr状(略円弧状)に設け、該受け側ロール及び枠組み押し込みロールの少なくともTD方向の端部において、両者間にシート部材が平面的に通過できる狭間部を有し、該受け側ロールと枠組み押し込みロールとの間にシート部材を挿入し、シート部材を挟持しつつ移動させ、該枠組み押し込みロールのシート部材の挿入口に最も近い最上流側に位置する凸状ロールが、前記受け側ロールの外周部中央に位置する前記凹部に貫入される位置に設けられ、下流側に位置する前記凸状ロールほど、前記周面中央より外側に位置する前記凹部に貫入されるされる位置に順次設けられ、受け側ロールの凹部と凸状ロールの隙間にシート部材を挟み込んで、凹凸形に曲折させつつ、受け側ロールと凸状ロールの回転により、波形シートを送り出すことができ、一方、無端状ベルトは、駆動手段により受け側ロールの外周速度と同期をとり、基材及び発熱組成物成形体を搬送でき、搬送されてきた各発熱組成物成形体を波形シートの各凸部の内に収納、シールし、搬送できるように組み込まれていることが好ましい。
本発明の発熱体は、波形シートの製造方法及び波形シートの製造装置で製造された波形シートの少なくとも1種を使用したことが好ましい。
As a result of intensive studies, the present inventor has solved the above problems and completed the present invention.
In the method for producing a corrugated sheet according to the present invention, a sheet member that travels in a direction in which the concave portion extends is provided between a receiving side member having a plurality of concave portions extending in a predetermined direction and a pushing member loosely fitted in the concave portion. In a method of manufacturing a corrugated sheet by interposing and inserting the sheet member into the recess and bending the sheet member into a corrugated shape, at least a portion where the sheet member contacts the receiving side member and the pushing member is rotated. A roll having a function, and a push-in member incorporating a plurality of convex rolls into the frame, the sheet member is inserted into the recess from a central portion, and the recess of the sheet member as the sheet member travels It is preferable to gradually increase the number of penetrations.
The corrugated sheet manufacturing apparatus of the present invention is an apparatus for manufacturing a corrugated sheet formed by bending a sheet member into a corrugated shape, and includes a plurality of concave portions extending in the circumferential direction along the outer peripheral portion. It consists of a receiving side roll and a frame pushing roll that are separated from each other by a convex part, and the frame pushing roll extends in the circumferential direction so as to penetrate into the concave part of the receiving side roll, and the receiving side roll and the rotation axis are parallel to each other. And a plurality of rotatable convex rolls provided on the frame, and a convex portion of at least a convex portion of the convex roll of the frame pushing roll and a concave portion of the receiving roll. The end of the convex portion and the end of the concave portion that are in contact with the sheet member are rounded (arc-shaped), and at least at the end in the TD direction of the receiving side roll and the frame pushing roll To seat part Is inserted between the receiving side roll and the frame pushing roll, and moved while sandwiching the sheet member, to the insertion port of the sheet pushing member of the frame pushing roll. A convex roll located on the most upstream side is provided at a position penetrating into the concave portion located in the center of the outer periphery of the receiving roll, and the convex roll located on the downstream side is closer to the center of the peripheral surface. It is sequentially provided at a position where it is inserted into the concave portion positioned on the outer side, and a sheet member is sandwiched between the receiving roll and the frame pushing roll, and is bent into a concavo-convex shape, and the receiving roll and the It is preferable to feed the corrugated sheet by rotation of a convex roll for pushing the frame.
Further, in the corrugated sheet manufacturing apparatus, the receiving side member is a flat frame receiving side roll having a plurality of convex roll shafts arranged in a planar shape, and the pushing member is a plurality of arranged in a planar shape. This is a flat sheet frame intrusion roll having a convex roll axis, and is a corrugated sheet manufacturing apparatus that combines a flat frame receiving roll and a flat frame pressing roll, and the concave portion of the flat frame receiving roll is formed between the convex rolls. A concave portion, the concave portion is linearly provided in the feeding direction of the sheet member, a plurality of convex rolls of the flat plate frame pushing roll are arranged in the feeding direction of the sheet member, and the first convex roll shaft on the most upstream side The number of convex rolls on the convex roll axis is the smallest, and the number of convex rolls on the convex roll axis gradually increases toward the outer side as the first convex roll axis is located on the downstream side. Door is preferable.
In the corrugated sheet manufacturing apparatus, it is preferable that the frame pushing roll has a wrinkle prevention tool at least between any of the convex rolls and at least one part of the end.
Moreover, it is preferable that a corrugated sheet manufacturing apparatus is equipped with the joining means which joins a flat base material sheet along the uneven | corrugated bottom face of the said corrugated sheet formed by bending in the waveform.
In the heating element manufacturing method of the present invention, a sheet member that travels in the extending direction of the recess is interposed between the receiving member having a plurality of recesses extending in a predetermined direction and the pushing member loosely fitted in the recess. And using the corrugated sheet produced by bending the sheet member into the recess and bending the sheet member into a corrugated shape as a covering material, and covering the exothermic composition molded body provided in a strip shape on the base material, It is preferable to seal the peripheral edge of the exothermic composition molded body.
An apparatus for producing a heating element according to the present invention is an apparatus for producing a heating composition molded body, in which a heating composition is molded, and a plurality of heating composition molded bodies are laminated on a substrate at intervals. A corrugated sheet manufacturing apparatus in which a member is bent into a corrugated structure and a heating element manufacturing apparatus comprising a sealing device that seals the base material and the corrugated sheet, the corrugated sheet fed from the corrugated sheet manufacturing apparatus being endless A plurality of exothermic composition molded bodies that are conveyed on the belt are coated so that they can be accommodated in the convex portions of the corrugated sheet, and are incorporated so that they can be conveyed to the next step. The manufacturing apparatus is provided with a plurality of concave portions extending in the circumferential direction along the outer peripheral portion, and the concave portion includes a receiving side roll and a frame pushing roll separated from each other by the convex portion, and the frame pushing roll Is A corrugated sheet is provided along the outer circumference of the receiving roll with a gap between the highest rotation point of the receiving roll and the lowest rotating point in the rotation direction. The base material supported by the endless belt is in contact with the outer periphery of the receiving side roll with a space where it can come into contact with the sheet, and the frame push-in roll is inserted into the recess of the receiving side roll. And having a structure in which a plurality of rotatable convex rolls extending in the direction and having the receiving side roll and the rotation axis parallel to each other are attached to the frame, and the ends of the convex portions of the convex rolls of the frame pushing roll At least the end portion of the concave portion of the receiving portion and the receiving side roll, the convex portion and the concave portion penetrate, and the end portion of the convex portion contacting the sheet member and the end portion of the concave portion are provided in an R shape (substantially arc shape). Of side roll and frame push roll At least at the end portion in the TD direction, there is a narrow space between which the sheet member can pass in a plane, and the sheet member is inserted between the receiving side roll and the frame pushing roll while sandwiching the sheet member A convex roll that is moved and located on the most upstream side closest to the insertion port of the sheet pushing member of the frame pushing roll is provided at a position where the convex roll is inserted into the concave portion that is located in the center of the outer peripheral portion of the receiving roll. The convex roll positioned on the side is sequentially provided at a position where the convex roll is inserted into the concave section located outside the center of the peripheral surface, and the sheet member is sandwiched between the concave section of the receiving roll and the convex roll. The corrugated sheet can be fed out by rotating the receiving roll and the convex roll while being bent into a concavo-convex shape, while the endless belt is driven at the same speed as the outer peripheral speed of the receiving roll. The base material and the exothermic composition molded body can be transported for a certain period of time, and each exothermic composition molded body that has been transported is housed, sealed, and transported within each convex portion of the corrugated sheet. Is preferred.
The heating element of the present invention preferably uses at least one corrugated sheet manufactured by the corrugated sheet manufacturing method and corrugated sheet manufacturing apparatus.

1.本発明の波形シートの製造装置によれば、シート部材を安定した状態で搬送して、通気性シート部材でも、伸張や破壊を防止しつつ、通気性を変えることなく、シート部材を波形に容易に曲折することができ、小領域の区分発熱部を間隔をおいてスジ状に設けたプリーツ型発熱体用の波型シート状被覆材を容易に製造できる。
2.本発明によれば、シート部材を安定した状態で搬送でき、シート部材の伸張や破断を防止しつつ、シート部材を波形に容易に曲折できる。また、本発明によれば、シート部材の伸張や破断を防止しつつ、同時に多数の波形をシート部材に形成できる。
尚、本発明の装置のTD方向端部と受け側ロールのTD方向端部が合わせる一定領域が狭隙である構造を有する及び/又は前記装置に、凸状ロールの間の少なくとも1部に皺防止具を設けるようにすれば、介在するシートを走行中、確実に保持でき、凸状ロール間におけるシート部材の弾性によるシート部材のもどりによる凹凸形の変形が防止でき、凹凸形のシャープなスジ状区分発熱部を有するプリーツ型発熱体用波シート状被覆材を容易に製造できる。
また、本発明の装置の枠のTD方向端部に設けられた皺防止具と少なくとも凸状ロールの何れかの間の少なくとも1部に皺防止具を設けるようにすれば、よりシャープな凹凸形を有するスジ状区分発熱部を有する発熱体用被覆材を容易に製造できる。
また、本発明の装置の凸条ロールの凸面の端部及び受け側ロールの凸部の端部の少なくとも1種をアール状(円弧状)に設けるようにすれば、通気性シート部材でも、伸張や破壊を防止しつつ、シート部材を安定した状態で搬送でき、通気性を変えることなく、シート部材を凹凸形に容易に曲折することができ、スジ状区分発熱部を有する発熱体用被覆材を容易に製造できる。
また、本発明の装置はMD方向において、短い距離の間に凸状ロールを一定パターンで配置するようにすれば、短距離で、プリーツ状シートが形成できるので、プリーツ状シート製造装置のコンパクト化ができる。
3.本発明の波型シート製造方法を使用するにより、凹凸形のシャープなスジ状区分発熱部を有するプリーツ型発熱体を容易に製造できる。
4.本発明のプリーツ型発熱体は使用前、使用中、使用後に渡り、常時、柔軟性が維持できるため、身体によくフィットし、十分な温熱効果が得られる。
1. According to the corrugated sheet manufacturing apparatus of the present invention, the sheet member is conveyed in a stable state, and even with a breathable sheet member, the sheet member can be easily corrugated without preventing expansion and breakage and without changing the breathability. The corrugated sheet-shaped covering material for a pleated heating element can be easily manufactured in which a small-area segmented heat generating portion is provided in a streak shape at intervals.
2. According to the present invention, the sheet member can be conveyed in a stable state, and the sheet member can be easily bent into a corrugated shape while preventing the sheet member from being stretched or broken. Further, according to the present invention, it is possible to simultaneously form a large number of waveforms on the sheet member while preventing the sheet member from being stretched or broken.
It should be noted that a certain region where the TD direction end of the apparatus of the present invention and the TD direction end of the receiving roll meet is a narrow gap, and / or the apparatus has at least one part between the convex rolls. By providing the prevention tool, the intervening sheet can be securely held during traveling, and the deformation of the uneven shape due to the return of the sheet member due to the elasticity of the sheet member between the convex rolls can be prevented. It is possible to easily manufacture a wave sheet-shaped covering material for a pleat-type heating element having a sectioned heating section.
Further, if the wrinkle prevention device is provided at least at one part between the wrinkle prevention device provided at the end of the frame of the device of the present invention in the TD direction and at least one of the convex rolls, a sharper uneven shape is obtained. It is possible to easily manufacture a heating element covering material having a streak-like segmented heat generating portion.
Further, if at least one of the end of the convex surface of the convex roll and the end of the convex portion of the receiving roll of the apparatus of the present invention is provided in a round shape (arc shape), even a breathable sheet member can be stretched. The sheet member can be transported in a stable state while preventing breakage and breakage, and the sheet member can be easily bent into a concavo-convex shape without changing the air permeability. Can be easily manufactured.
Moreover, since the apparatus of the present invention can form a pleated sheet at a short distance by arranging convex rolls in a constant pattern for a short distance in the MD direction, the pleated sheet manufacturing apparatus can be made compact. Can do.
3. By using the corrugated sheet manufacturing method of the present invention, it is possible to easily manufacture a pleated heating element having a sharp uneven segmented heating part.
4). Since the pleated heating element of the present invention can maintain flexibility at all times before use, during use, and after use, it fits well to the body and provides a sufficient thermal effect.

以下、本発明をその好ましい実施の形態に基づき図面を参照しながら説明する。
本発明の発熱体は、波形シートを用いて製造した、複数の区分発熱部を「ストライプ状に間隔をおいて設けた発熱体である。
Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings.
The heating element of the present invention is a heating element manufactured by using a corrugated sheet and having a plurality of segmented heating parts “in stripes at intervals.

本発明で使用できる発熱組成物は、本発明の発熱組成物成形体包装体製造方法及び/又は製造装置で発熱組成物成形体包装体ができれば制限はないが、好ましくは、発熱組成物は、鉄粉、活性炭等の炭素成分、塩化ナトリウム等の反応促進剤及び水を必須成分とし、易動水値が0.01〜50の余剰水を含有する成形性含水発熱組成物である。   The exothermic composition that can be used in the present invention is not limited as long as the exothermic composition molded body package can be produced by the exothermic composition molded body production method and / or production apparatus of the present invention. It is a moldable water-containing exothermic composition containing carbon components such as iron powder and activated carbon, a reaction accelerator such as sodium chloride, and water as essential components, and containing excess water having a mobile water value of 0.01 to 50.

また、本発明の成形性含水発熱組成物は、前記成分の他に、木粉等の保水剤、吸水性ポリマー、成形助剤、亜硫酸ナトリウム等の水素発生抑制剤、水酸化カルシウム等のpH調整剤、骨材、機能性物質、ポリオキシエチレンアルキルエーテル等のノニオン、両性イオン、アニオン、カチオンの界面活性剤、ポリエチレンやポリプロピレン等の疎水性高分子化合物、ジメチルシリコーンオイル等の有機ケイ素化合物、焦電物質、セラミック等の遠赤外線放射物質、トルマリン等のマイナスイオン発生剤、FeCl等の発熱助剤、ケイ素やアルミニウム等の鉄以外の金属、二酸化マンガン等の酸化鉄以外の金属酸化物、塩酸やマレイン酸や酢酸等の酸性物質、パルプ等の繊維状物、尿素等の肥料成分、グリセリンやD−ソルビトール等の保湿剤、離型剤又はこれらの混合物からなる付加的な成分から選ばれた少なくとも一種を含有してもよい。
尚、公知の使い捨てカイロや発熱体に使用される発熱組成物の成分が使用できる。
In addition to the above components, the moldable water-containing exothermic composition of the present invention comprises a water retention agent such as wood flour, a water-absorbing polymer, a molding aid, a hydrogen generation inhibitor such as sodium sulfite, and a pH adjustment such as calcium hydroxide. Agents, aggregates, functional substances, nonions such as polyoxyethylene alkyl ethers, zwitterionic, anionic and cationic surfactants, hydrophobic polymer compounds such as polyethylene and polypropylene, organosilicon compounds such as dimethyl silicone oil, conductive material, the far-infrared emitting material such as a ceramic, negative ion generator such as tourmaline, heating aids such as FeCl 2, metals other than iron, silicon, aluminum, or the like, metal oxides other than iron oxide, such as manganese dioxide, hydrochloride , Acidic substances such as maleic acid and acetic acid, fibrous materials such as pulp, fertilizer components such as urea, humectants such as glycerin and D-sorbitol Further, it may contain at least one selected from an additional component consisting of a release agent or a mixture thereof.
In addition, the component of the exothermic composition used for a well-known disposable body warmer or a heat generating body can be used.

前記成形性含余剰水発熱組成物は、その配合割合は特に限定されるものではないが、好ましくは、鉄粉100重量部に対して、炭素成分1.0〜50重量部、反応促進剤1.0〜50重量部、水1.0〜60重量部、保水剤0.01〜10重量部、吸水性ポリマー0.01〜20重量部、pH調整剤0.01〜5重量部、水素発生抑制剤0.01〜12重量部、鉄以外の金属1.0〜50重量部、酸化鉄以外の金属酸化物1.0〜50重量部、界面活性剤0.01〜5重量部、疎水性高分子化合物、骨材、繊維状物、機能性物質、有機ケイ素化合物、焦電物質はそれぞれ0.01〜10重量部、成形助剤、離型剤はそれぞれ0.001〜6重量%、保湿剤、肥料成分、発熱助剤はそれぞれ0.01〜10重量部、酸性物質0.01〜1重量部である。尚、磁性体を更に配合するようにしてもよく、配合割合は所望により適宜決めればよい。
尚、この配合割合は、反応混合物、発熱混合物にも適用することができる。また、反応混合物の易動水値は0.01未満が好ましい。
また、磁性体を更に配合するようにしてもよく、配合割合は所望により適宜決めればよい。
発熱組成物として易動水値が0.01〜20になるように配合割合を選択するのが好ましい。
The blending ratio of the moldable excess water exothermic composition is not particularly limited, but preferably 1.0 to 50 parts by weight of carbon component and reaction accelerator 1 with respect to 100 parts by weight of iron powder. 0.0-50 parts by weight, water 1.0-60 parts by weight, water retention agent 0.01-10 parts by weight, water-absorbing polymer 0.01-20 parts by weight, pH regulator 0.01-5 parts by weight, hydrogen generation 0.01 to 12 parts by weight of inhibitor, 1.0 to 50 parts by weight of metal other than iron, 1.0 to 50 parts by weight of metal oxide other than iron oxide, 0.01 to 5 parts by weight of surfactant, hydrophobicity Polymer compounds, aggregates, fibrous materials, functional substances, organosilicon compounds, pyroelectric substances are each 0.01 to 10 parts by weight, molding aids and release agents are 0.001 to 6% by weight, respectively, moisturizing Agent, fertilizer component and exothermic auxiliary are 0.01 to 10 parts by weight, 0.01 to 1 part by weight of acidic substances, respectively A. In addition, you may make it mix | blend a magnetic body further and should just determine a mixing | blending ratio suitably as needed.
This blending ratio can also be applied to a reaction mixture and an exothermic mixture. The mobile water value of the reaction mixture is preferably less than 0.01.
Moreover, you may make it mix | blend a magnetic body further and should just determine a mixing | blending ratio suitably as needed.
It is preferable to select the blending ratio so that the easy water value is 0.01 to 20 as the exothermic composition.

前記鉄粉は、限定はされないが、鋳鉄鉄粉、アトマイズ鉄粉、電解鉄粉、還元鉄粉、スポンジ鉄粉及びそれらの鉄合金粉等が一例として使用できる。更に、これら鉄粉が炭素や酸素を含有していてもよく、また、鉄を50%以上含む鉄で、他の金属を含んでいてもよい。合金等として含まれる金属の種類は鉄成分が発熱組成物の成分として働けば特に制限はないが、アルミニウム、マンガン、銅、ケイ素等の金属、半導体が一例として挙げられる。本発明の金属には半導体も含める。
本発明の鉄粉において、前記鉄以外の金属の含有量は、鉄粉全体に対して通常0.01〜50重量%であり、好ましくは0.1〜10重量%である。
Examples of the iron powder include, but are not limited to, cast iron iron powder, atomized iron powder, electrolytic iron powder, reduced iron powder, sponge iron powder, and iron alloy powder thereof. Furthermore, these iron powders may contain carbon or oxygen, or may contain other metals, such as iron containing 50% or more of iron. The type of metal contained as an alloy or the like is not particularly limited as long as the iron component acts as a component of the exothermic composition, but examples include metals such as aluminum, manganese, copper, and silicon, and semiconductors. The metal of the present invention includes a semiconductor.
In the iron powder of the present invention, the content of metals other than iron is usually 0.01 to 50% by weight, preferably 0.1 to 10% by weight, based on the entire iron powder.

前記鉄の表面の少なくとも一部に酸素含有皮膜を有する鉄粉としては
A.発熱組成物の必須成分又はそれに酸性物質やその他必要成分を加えたものを酸化性ガスとの接触処理し、鉄成分を部分酸化し、鉄成分の表面を少なくとも部分酸化した活性鉄粉
B.ウスタイトの含有量が、鉄のX線ピーク強度比として、2〜50重量%の活性鉄粉
C.厚さ3nm以上の鉄酸化皮膜を表面に有する鉄粉
D.活性鉄粉と活性鉄粉以外の鉄粉の混合物
等が一例として挙げられる。
Examples of iron powder having an oxygen-containing film on at least a part of the iron surface include: An active iron powder obtained by subjecting an essential component of an exothermic composition or an acidic substance or other necessary components to contact treatment with an oxidizing gas, partially oxidizing the iron component, and at least partially oxidizing the surface of the iron component. Active iron powder having a wustite content of 2 to 50% by weight as an X-ray peak intensity ratio of iron. Iron powder having an iron oxide film with a thickness of 3 nm or more on the surface D. An example is a mixture of active iron powder and iron powder other than active iron powder.

前記活性鉄粉とは、鉄粉の表面の少なくとも一部が鉄酸化皮膜で覆われ、一つは前記鉄酸化皮膜の厚さが3nm以上であり、且つ、少なくとも活性鉄粉の中心部領域及び鉄酸化皮膜の下の領域から選ばれた少なくとも1領域において酸素を含まない鉄成分の領域を有する活性鉄粉である。
前記鉄粉の表面を覆う酸素含有皮膜である鉄酸化皮膜の厚さは、オージェ電子分光法を用いて、3nm以上であば制限はないが、通常3nm以上であり、好ましくは3nm〜100μmであり、より好ましくは30nm〜100μmであり、更に好ましくは30nm〜50μmであり、更に好ましくは30nm〜1μmであり、更に好ましくは30nm〜500nmであり、更に好ましくは50nm〜300nmである。鉄の酸素含有被膜の厚さを3nm以上とすることにより、鉄の酸素含有被膜が酸化反応の促進効果を発揮でき、空気等の酸化性ガスと接触して、酸化反応をすぐに開始させることができる。
鉄の酸素含有被膜の厚さが100μm以上であると、発熱時間が短くなるおそれがあるが、用途によっては使用できる。
また、もう一つはウスタイトを有する活性鉄粉で、ウスタイト量は、鉄とのX線強度比として、通常は2〜50重量%であり、好ましくは5.01〜50重量%であり、より好ましくは5.01〜40重量%であり、更に好ましくは6〜40重量%であり、更に好ましくは7〜30重量%であり、更に好ましくは7〜25重量%である。50重量%を超えても発熱立ち上がり性はよいが、発熱持続時間が短くなる。2重量%未満であると発熱立ち上がり性が鈍くなる。
The active iron powder is such that at least a part of the surface of the iron powder is covered with an iron oxide film, one of which has a thickness of 3 nm or more, and at least a central region of the active iron powder and It is an active iron powder having a region of an iron component not containing oxygen in at least one region selected from a region below the iron oxide film.
The thickness of the iron oxide film which is an oxygen-containing film covering the surface of the iron powder is not limited as long as it is 3 nm or more using Auger electron spectroscopy, but is usually 3 nm or more, preferably 3 nm to 100 μm. More preferably 30 nm to 100 μm, still more preferably 30 nm to 50 μm, still more preferably 30 nm to 1 μm, still more preferably 30 nm to 500 nm, still more preferably 50 nm to 300 nm. By making the thickness of the iron-containing film of iron 3 nm or more, the iron-containing film of iron can exert the effect of promoting the oxidation reaction, and contact the oxidizing gas such as air to start the oxidation reaction immediately. Can do.
If the thickness of the iron oxygen-containing coating is 100 μm or more, the heat generation time may be shortened, but it can be used depending on the application.
The other is an active iron powder having wustite, and the amount of wustite is usually 2 to 50% by weight, preferably 5.01 to 50% by weight, as an X-ray intensity ratio with iron. Preferably it is 5.01 to 40 weight%, More preferably, it is 6 to 40 weight%, More preferably, it is 7 to 30 weight%, More preferably, it is 7 to 25 weight%. Even if it exceeds 50% by weight, the heat buildup is good, but the heat generation duration is shortened. If it is less than 2% by weight, the heat build-up property becomes dull.

前記活性鉄粉の鉄酸化被膜の厚さの分析法はオージェ電子分光法が、ウスタイト量の測定にはX線解析法が使用される。
前記オージェ電子分光法は、深さ方向にFe換算でのスパッタリング速度11nm/分でArでスパッタリングした場合に、O(酸素)のピーク強度(Io)とFeのピーク強度(Ii)の比(Io/Ii)が0.05以上となる部分をいう。従って、前記鉄粉表面の鉄の酸素含有皮膜の厚さは、鉄粉表面から(Io/Ii)が0.05となる深さまでのFe換算での距離である。測定条件は、スパッタリング時間:15分間、スパッタリング速度:11nm/分(Fe換算)である。前記オージェ電子分光法のスパッタリング時間の経過とともにIoが滅少し、Iiが増加する。鉄粉表面から(Io/Ii)が0.05となる深さまでのスパッタリング時間を厚さに換算することにより、鉄酸化皮膜の厚さを算出することができる。
前記ウスタイト量とは、X線解析装置を用い、鉄(αFe)の110面のピークの積分強度とFeO(ウスタイト)の220面のピークの積分強度から次式により、鉄とのX繰強度比として、%表示で表したものである.
ウスタイト量(%)=100×(KFeO/KαFe)
KFeO:FeO(ウスタイト)の220面のピークの積分強度
KαFe:鉄(αFe)の110面のピークの積分強度
尚、鉄酸化皮膜を有する鉄粉が鉄粉以外の物質(炭素成分、反応促進剤や水等)を含む混合物を使用して、作成されている場合は、作成後の混合物から磁石等により鉄粉を分離し、それを試料として測定すればよい。発熱組成物の外、発熱体の中の発熱組成物や発熱組成物成形体を分析する場合は窒素雰囲気下、窒素置換されたイオン交換水に発熱組成物や発熱組成物成形体を分散させ、磁石で、鉄粉を分離し、窒素雰囲気下で乾燥させたものを測定用試料とする。
The method for analyzing the thickness of the iron oxide film of the active iron powder is Auger electron spectroscopy, and the method for measuring the amount of wustite is X-ray analysis.
In the Auger electron spectroscopy, the ratio of the peak intensity (Io) of O (oxygen) to the peak intensity (Ii) of Fe (Io) when sputtering with Ar at a sputtering rate of 11 nm / min in terms of Fe in the depth direction (Io) / Ii) refers to a portion where 0.05 or more. Therefore, the thickness of the iron oxygen-containing film on the surface of the iron powder is a distance in terms of Fe from the surface of the iron powder to a depth where (Io / Ii) is 0.05. The measurement conditions are sputtering time: 15 minutes and sputtering speed: 11 nm / min (Fe conversion). As the sputtering time of the Auger electron spectroscopy elapses, Io decreases and Ii increases. By converting the sputtering time from the iron powder surface to a depth at which (Io / Ii) is 0.05, the thickness of the iron oxide film can be calculated.
The amount of wustite is an X-ray intensity ratio based on the following formula from the integrated intensity of the peak of the 110 plane of iron (αFe) and the integrated intensity of the peak of the 220 plane of FeO (wustite) using an X-ray analyzer. As a percentage.
Wustite amount (%) = 100 × (KFeO / KαFe)
Integral intensity of KFeO: FeO (wustite) 220 face peak KαFe: Integral intensity of 110 face peak of iron (αFe) Iron powder having an iron oxide film other than iron powder (carbon component, reaction accelerator) If the mixture is prepared using a mixture containing water, water, etc., the iron powder may be separated from the mixture after preparation with a magnet or the like and measured as a sample. In addition to the exothermic composition, when analyzing the exothermic composition or exothermic composition molded body in the exothermic body, in a nitrogen atmosphere, disperse the exothermic composition or exothermic composition molded body in ion-exchanged water substituted with nitrogen, A measurement sample is obtained by separating iron powder with a magnet and drying it under a nitrogen atmosphere.

前記骨材としては、充填剤として有用であり、及び/又は、発熱組成物の多孔質化に有用であれば制限はない。化石サンゴ(サンゴ化石、風化造礁サンゴ等)、竹炭、備長炭、シリカーアルミナ粉、シリカーマグネシア粉、カオリン、結晶セルロース、コロイダルシリカ、軽石、シリカゲル、シリカ粉、マイカ粉、クレー、タルク、合成樹脂の粉末やペレット、発泡ポリエステル及びポリウレタンのような発泡合成樹脂、藻土、アルミナ、繊維素粉末等が一例として挙げられる。   The aggregate is not particularly limited as long as it is useful as a filler and / or useful for making the exothermic composition porous. Fossil coral (coral fossil, weathered reef coral, etc.), bamboo charcoal, Bincho charcoal, silica-alumina powder, silica-magnesia powder, kaolin, crystalline cellulose, colloidal silica, pumice, silica gel, silica powder, mica powder, clay, talc, Examples include synthetic resin powders and pellets, foamed synthetic resins such as foamed polyester and polyurethane, algae, alumina, and fiber powder.

成形助剤とは、水分との組み合わせにより、発熱組成物成形体の強度を向上させ、形状を維持するために添加するものであり、水溶性高分子、親水性高分子、無機化合物がある。
即ち、鉄粉等の発熱組成物の組成物質粒子間に作用を及ぼし、発熱組成物成形体の成形後のシールまでの移動中の崩れ等を防止するものである。
The molding aid is added to improve the strength of the exothermic composition molded body and maintain the shape by combination with moisture, and includes water-soluble polymers, hydrophilic polymers, and inorganic compounds.
That is, it acts between the composition material particles of the exothermic composition such as iron powder, and prevents collapse of the exothermic composition molded body during movement to the seal after molding.

成形助剤としてはセルロース形、デンプン系(デンプン誘導体)、半合成系、合成系、シロップ系、マンナン系、海藻類、植物粘質物、微生物による粘質物、タンパク賞系、多糖類系等が一例として挙げられる。
例えば、ステアリン酸塩、ポリアクリル酸ソーダ等のポリアクリル酸塩、ゼラチン、ポリエチレンオキサイド、ポリビニルアルコール、ポリビニルビロリドン、アラビアゴム、トラガカントゴム、ローカストビーンガム、グアーガム、アラビアガム、アルギン酸ソーダ等のアルギン酸塩、ペクチン、カルボキシビニルポリマー、デキストリン、α化澱粉、加工用澱粉等の澱粉系吸水剤、キサンタンガム、ジュランガム、プルラン、ガードラン等の微生物産生粘物質、グアガム、ローカストビーンガム、タマリンドシードガム、タラガム等の植物種子粘物質、カラギーナン、寒天等の海草抽出物、アラビアガム、トラントガム、カラヤガム等の植物樹脂粘物質、ペクチン、アラピノガラクタン等の植物果実粘物質等の多糖類系増粘剤、カルボキシメチルセルロース(CMC)、カルポキシメチルセルロースナトリウム、酢酸エチルセルロース、ハイドロキシメチルセルロース等のセルロース誘導体系増粘剤、アクリルスルホン酸系高分子物質、ポリーN−ビニルアセトアミド、又はメチルセルロース、ヒドロキシプロビルメチルセルロース等の水溶性セルロース、ゼラチンアルブミンカゼイン等の動物蛋白質、および、大豆蛋白質、小麦蛋白質等の植物蛋白質、ベントナイト、カオリン、珪酸ソーダ、珪酸アルミニウム等が一例として挙げられる。また、これら等から避ばれた2種以上の混合物が一例として挙げられる。
特開2003−301200号公報に記載されている水溶性セルロースエーテルも本発明に有用であり、この特開公報の記載もその全部を参照することにより本明細書に組み入れる。
また、本発明の発熱組成物の成分は、従来より開示されている又は市販されている又は公知の使い捨てカイロや発熱体に使用されている増粘剤、賦形剤等の発熱組成組成物を集合させる機能を有するものも使用できる。
Examples of molding aids include cellulose type, starch type (starch derivative), semi-synthetic type, synthetic type, syrup type, mannan type, seaweed, plant mucilage, microbial mucus, protein award, polysaccharide type, etc. As mentioned.
For example, stearates, polyacrylates such as sodium polyacrylate, gelatin, polyethylene oxide, polyvinyl alcohol, polyvinyl pyrrolidone, gum arabic, tragacanth, locust bean gum, guar gum, gum arabic, sodium alginate, etc. , Pectin, carboxyvinyl polymer, dextrin, pregelatinized starch, starch-based water-absorbing agent such as processing starch, xanthan gum, duran gum, pullulan, guard run, etc. Plant seed mucilage, carrageenan, seaweed extract such as agar, plant resin mucilage such as gum arabic, tant gum, karaya gum, polysaccharide thickener such as plant fruit mucilage such as pectin, arapinogalactan, carbox Cellulose derivative thickeners such as methylcellulose (CMC), sodium carboxymethylcellulose, ethyl acetate, and hydroxymethylcellulose, acrylic sulfonic acid polymer materials, poly-N-vinylacetamide, or water-soluble cellulose such as methylcellulose and hydroxypropylmethylcellulose Examples thereof include animal proteins such as gelatin albumin casein, plant proteins such as soybean protein and wheat protein, bentonite, kaolin, sodium silicate, aluminum silicate and the like. Moreover, the mixture of 2 or more types avoided from these etc. is mentioned as an example.
The water-soluble cellulose ether described in JP-A-2003-301200 is also useful in the present invention, and the description of this JP-A is also incorporated herein by reference in its entirety.
In addition, the components of the exothermic composition of the present invention include exothermic compositions such as thickeners and excipients that have been conventionally disclosed or commercially available, or are used in known disposable warmers and exothermic bodies. Those having the function of collecting can also be used.

前記離型剤としては、制限はないが、鉱物油、合成油、動植物油等で構成される潤滑油油性グリース、天然ワックス、合成ワックス等の高粘性潤滑油、シリコーン、ステアリン酸、ステアリン酸塩類等が一例として挙げられる。   The mold release agent is not limited, but includes lubricating oils composed of mineral oil, synthetic oil, animal and vegetable oils, high viscosity lubricating oils such as natural wax and synthetic wax, silicone, stearic acid, stearates Etc. are mentioned as an example.

前記機能性物質としては、薬効、芳香等の何らかの機能を有していればいかなるものでもよい。香料、薬草、ハーブ、漢方薬、経皮吸収性薬物、医薬活性物質、芳香剤、化粧水、乳液、湿布剤、防カビ剤、抗菌剤、殺菌剤、消臭剤又は脱臭剤、磁気体等が一例として挙げられる。
更に、機能性物質としては、具体的に一例を挙げれば、酸性ムコポリサッカライド、カミツレ、セイヨウトチノキ、ビタミンE、ニコチン酸誘導体、アルカロイド化合物等の血行促進剤;セイヨウトチンキ、フラボン誘導体、アントシアニジン、ビタミンP、きんせんか、シラノール、テルミナリア、マユス等のむくみ改善剤;アミノフィリン、茶エキス、カフェイン、キサンテン誘導体、イノシット、デキストラン硫酸誘導体、セイヨウトチノキ、エスシン、アントシアニジン、有機ヨウ素化合物、オトギリ革、スギナ、マンネンロウ、朝鮮人参、ヒアルウロニダーゼ等のスリム化剤;インドメタシン、dl−カンフル、ケトプロフエン、ショーガエキス、トウガラシエキス、サリチル酸メチル、サリチル酸グリコール等の鎮痛剤;ラベンダー、ローズマリー、シトロン、ジェニパー、ペパーミント、ユーカリ、ローズウッド、オレンジ等の香料等が挙げられ、一種以上を用いることができる。
The functional substance may be any substance as long as it has some function such as medicinal effect and aroma. Perfumes, herbs, herbs, herbal medicines, transdermal drugs, pharmaceutically active substances, fragrances, lotions, emulsions, poultices, fungicides, antibacterial agents, bactericides, deodorants or deodorants, magnetic substances, etc. As an example.
Furthermore, specific examples of functional substances include acidic mucopolysaccharides, chamomiles, horse chestnuts, vitamin E, nicotinic acid derivatives, blood circulation promoters such as alkaloid compounds; horse chestnuts, flavone derivatives, anthocyanidins, Swelling improvers such as vitamin P, goldfish, silanol, terminaria, mayus; aminophylline, tea extract, caffeine, xanthene derivative, inosit, dextran sulfate derivative, horse chestnut, escin, anthocyanidin, organic iodine compound, hardwood leather, horsetail, Slimming agents such as mannenrou, ginseng, hyaluronidase; analgesics such as indomethacin, dl-camphor, ketoprofen, shoga extract, red pepper extract, methyl salicylate, glycol salicylate; Chromatography, rosemary, citron, Jenipa, peppermint, eucalyptus, rosewood, include perfumes orange etc., it can be used one or more kinds.

前記経皮吸収性薬物としては、経皮吸収性のものであれば特に限定されるものではないが、例えば皮膚刺激剤、サリチル酸やインドメタシン等の沈痛消炎剤、中枢神経作用剤(睡眠鎮静剤、抗てんかん剤、精神神経用剤)、利尿剤、血圧降下剤、蓮血管拡張剤、鎮咳去疾剤、抗ヒスタミン剤、不整脈用剤、強心剤、副腎皮質ホルモン剤、局所麻酔剤等が挙げられる。これら薬剤は、一種又は必要に応じて二種以上配合されて用いられる。   The percutaneously absorbable drug is not particularly limited as long as it is percutaneously absorbable. For example, skin stimulants, analgesic anti-inflammatory agents such as salicylic acid and indomethacin, central nervous system agents (sleep sedatives, Antiepileptics, neuropsychiatric agents), diuretics, antihypertensives, lotus vasodilators, antitussives, antihistamines, arrhythmic agents, cardiotonic agents, corticosteroids, local anesthetics, and the like. These drugs are used alone or in combination of two or more as required.

前記鉄粉は、鉄を50%以上含む鉄粉であれば限定はない。
鋳鉄鉄粉、アトマイズ鉄粉、電解鉄粉、還元鉄粉、スポンジ鉄粉及びそれらの鉄合金粉等が一例として使用できる。更に、これら鉄粉が炭素や酸素を含有していてもよく、また、鉄を50%以上含む鉄で、他の金属を含んでいてもよい。合金等として含まれる金属の種類は鉄成分が発熱組成物の成分として働けば特に制限はないが、アルミニウム、マンガン、銅、ケイ素等の金属、半導体が一例として挙げられる。本発明の金属には半導体も含める。
特に鉄粉の表面に炭素成分及び/又は酸化鉄を有するものが活性な発熱熱反応を行う鉄粉として好ましい。本発明の鉄粉において、前記鉄以外の金属の含有量は、鉄粉全体に対して通常0.01〜50重量%であり、好ましくは0.1〜10重量%である。
The iron powder is not limited as long as it contains 50% or more of iron.
Cast iron iron powder, atomized iron powder, electrolytic iron powder, reduced iron powder, sponge iron powder, and iron alloy powder thereof can be used as examples. Furthermore, these iron powders may contain carbon or oxygen, or may contain other metals, such as iron containing 50% or more of iron. The type of metal contained as an alloy or the like is not particularly limited as long as the iron component acts as a component of the exothermic composition, but examples include metals such as aluminum, manganese, copper, and silicon, and semiconductors. The metal of the present invention includes a semiconductor.
In particular, those having a carbon component and / or iron oxide on the surface of the iron powder are preferable as the iron powder for performing an active exothermic heat reaction. In the iron powder of the present invention, the content of metals other than iron is usually 0.01 to 50% by weight, preferably 0.1 to 10% by weight, based on the entire iron powder.

本発明の基材や被覆材を構成する包装材としては、発熱体用の包装材として機能すれば制限はない。公知の使い捨てカイロや発熱体に使用される包装材が使用できる。
例えば包材として非通気性素材、通気性素材、吸水性素材、非吸水性素材、非伸長性素材、伸長性素材、伸縮性素材、非伸縮性素材、発泡素材、非発泡素材、非ヒートシール性素材、ヒートシール性素材等が一例として挙げられ、フィルム、シート、不織布、織布等及びそれらの積層体等の所望の形態で、所望の用途により適宜使用できる。
The packaging material constituting the base material or coating material of the present invention is not limited as long as it functions as a packaging material for a heating element. The packaging material used for a well-known disposable body warmer or a heat generating body can be used.
For example, non-breathable material, breathable material, water-absorbing material, non-water-absorbing material, non-stretchable material, stretchable material, stretchable material, non-stretchable material, foamed material, non-foamed material, non-heat seal as packaging material Examples thereof include a heat-resistant material, a heat-sealable material, and the like, and can be appropriately used depending on a desired application in a desired form such as a film, a sheet, a nonwoven fabric, a woven fabric, and a laminate thereof.

前記通気性フィルムは、例えばポリエチレン、ポリプロピレン、ポリフッ化エチレンフィルム等を使用した多孔質フィルムが好適に用いられ、必要通気量に応じて孔径が定められる。通気量は必要発熱量、温度に応じて、用いる発熱剤に関連して設計される。
また、繊維が積層され熱圧着されて通気性を制御された不織布よりなる包装材、ポリエチレンフィルム等非通気性フィルムに穿孔により孔を開けた包装材や穿孔フィルムや多孔質フィルムに不織布をラミネートした積層体が一例として挙げられる。
As the air permeable film, for example, a porous film using, for example, polyethylene, polypropylene, polyfluorinated ethylene film or the like is suitably used, and the pore diameter is determined according to the required air permeability. The amount of ventilation is designed in relation to the heat generating agent to be used, depending on the required heat generation amount and temperature.
In addition, a non-breathable film such as a polyethylene film or a non-breathable film such as a polyethylene film laminated with a non-woven fabric laminated on a non-breathable film or a porous film. A laminated body is mentioned as an example.

前記非通気性フィルムとしては、実質的に酸素を透過しないフィルムであれば良く、例えばポリエチレン、ポリプロピレン、ポリプタジエン等のポリオレフィン、ポリ塩化ビニル、ポリ塩化ビニリデン、ポリエステル、ポリエーテル、ポリスルフォン、ポリアミド等からなる包装材が一例として挙げられる。
非通気性ポリエチレンフィルムの片面に吸水性ポリマー含有ポリエステル不織布をラミネートしたものや非通気性ポリエチレンフィルムの片面に段ボール紙等の紙類をラミネートした積層体等も使用できる。
The non-breathable film may be a film that does not substantially transmit oxygen, such as polyolefins such as polyethylene, polypropylene, and polyptadiene, polyvinyl chloride, polyvinylidene chloride, polyester, polyether, polysulfone, polyamide, and the like. An example of the packaging material is as follows.
A laminate in which a water-absorbing polymer-containing polyester nonwoven fabric is laminated on one side of a non-breathable polyethylene film or a laminate in which paper such as corrugated paper is laminated on one side of a non-breathable polyethylene film can also be used.

複数の区分発熱部の配置形状としては、制限はないが、格子状、ストライプ状、波状、格子−ストライプ状、ランダム状等が一例として挙げられる。   The arrangement shape of the plurality of divided heat generating portions is not limited, but examples thereof include a lattice shape, a stripe shape, a wave shape, a lattice-stripe shape, and a random shape.

本発明の発熱部は、スジ状に間隔をおいて設けることが好ましく、「スジ状に間隔をおいて設ける」とは、複数の区分発熱部が、スジ状に間隔をおいて(平行線状に)設けられたものである。1本のスジは1個の区分発熱部により構成されていることが好ましい。
また、下記の条件を満たしていれば、1本のスジは2個以上の区分発熱部と1個以上の区分け部とから構成されていてもよい。
Tは、T≧2Sであり、好ましくは、T≧2.5Sである。
Pは、P≦Tであり、好ましくは、P≦0.5Tである。
T :1個の区分発熱部の長さ
S :1個の区分発熱部の幅
P : 区分け部の長さ
平行縞状(縦縞、横縞、斜め縞、縦波縞、横波縞、斜め波縞等)に区分発熱部からなるスジを配置することが一例として挙げられる。
The heating portions of the present invention are preferably provided in a streak-like manner, and “providing a streak-like spacing” means that a plurality of segmented heating portions are provided in a streak-like manner (parallel lines). ). One streak is preferably composed of one section heat generating portion.
Moreover, as long as the following conditions are satisfied, one streak may be composed of two or more divided heat generating portions and one or more divided portions.
T is T ≧ 2S, and preferably T ≧ 2.5S.
P is P ≦ T, and preferably P ≦ 0.5T.
T: Length of one section heat generating portion S: Width of one section heat generating portion P: Length of section section Parallel stripes (vertical stripe, horizontal stripe, diagonal stripe, vertical wave stripe, horizontal wave stripe, diagonal wave stripe, etc. For example, a streak made up of segmented heat generating portions may be arranged in ().

本発明におけるストライプ状に間隔をおいて設けた区分発熱部を有する発熱体の場合は、直角方向になる2方向における剛軟度の差の絶対値が最大になる、平行六面体形状の区分発熱部をスジ状に間隔をおいて設けた発熱体や、更に粘着剤層を設けた発熱体や、その粘着剤層をスジ状に間隔をおいて設けた発熱体は、一方向に対して非常に柔軟性であり、一方向に対しては剛性であるので、肩こり、腰痛、筋肉疲労等の症状を緩和し、特に生理痛の症状緩和する等の効能を発揮する。更に、発熱体の幅方向に、ほぼ幅寸法の大きさで巻けて、コンパクトになり、収納にも便利である。またセパレータ付きの場合は剛軟度の低いセパレータを使用すれば巻くことができる。
また、身体に沿わせて発熱体を設ける場合、身体は二次的曲面が多く、肩、脚、腹、腰、腕等は1方向は、ほぼ直線的になっており、他の2方向はほぼ曲面から造られる。従って、1方向はほぼ直線的であり、他の2方向は曲面を造ることができる本発明の発熱体は2次元的曲面が造れるので、身体にうまく沿わすことができ、身体の採暖や諸症状の緩和、治療に最適である。
In the case of a heating element having segmented heat generating portions provided in a striped manner in the present invention, a parallel hexahedron-shaped segmented heat generating portion in which the absolute value of the difference in bending resistance in two directions that are perpendicular to each other is maximized. A heating element provided with streaks spaced apart, a heating element provided with a pressure-sensitive adhesive layer, and a heating element provided with the adhesive layers spaced apart in a streak form are very Since it is flexible and rigid in one direction, it has the effect of relieving symptoms such as stiff shoulders, back pain, and muscle fatigue, and particularly relieving symptoms of menstrual pain. Furthermore, it can be wound in the width direction of the heating element with a size of almost the width dimension, is compact, and is convenient for storage. When a separator is provided, the separator can be wound by using a separator having low bending resistance.
When a heating element is provided along the body, the body has many secondary curved surfaces, and the shoulders, legs, abdomen, waist, arms, etc. are almost linear in one direction, and the other two directions are Made almost from a curved surface. Therefore, the heating element of the present invention, which can form a curved surface in one direction, and can form a curved surface in the other two directions, can form a two-dimensional curved surface. Ideal for symptom relief and treatment.

前記区分発熱部又は前記発熱組成物成形体のサイズは制限はないが、好ましいサイズは以下の通りである。
1)円形状、ディスク形状及びディスク類似形状の場合
直径は、好ましくは約1mm〜約60mmであり、より好ましくは2mm〜50mmであり、更に好ましくは10mm〜40mmであり、更に好ましくは20mm〜30mmである。
高さは、好ましくは0.1mm〜20mmであり、より好ましくは0.3mm〜20mmであり、更に好ましくは0.5mm〜20mmであり、更に好ましくは1mm〜20mmであり、より好ましくは1.5mm〜10mmであり、更に好ましく3mm〜9mmであり、更に好ましくは4mm〜8mmであり、更に好ましくは5mm〜7mmである。
容積は、好ましくは約0.0045cm〜約20cmであり、より好ましくは約0.2cm〜約11cmである。
2)前記1)以外の形状(矩形、矩形類似形状等)である場合
幅は、好ましくは0.5mm〜60mmであり、より好ましくは0.5mm〜50mmであり、好ましくは0.5mm〜50mmであり、更に好ましくは1mm〜50mmであり、更に好ましくは3mm〜50mmであり、更に好ましくは3mm〜30mmであり、更に好ましくは5mm〜20mmであり、更に好ましくは5mm〜15mmであり、更に好ましくは5mm〜10mmである。
また、高さは、好ましくは0.1mm〜30mmであり、より好ましくは0.1mm〜20mmであり、更に好ましくは0.1mm〜10mmであり、更に好ましくは0.3mm〜10mmであり、更に好ましくは0.5mm〜10mmであり、更に好ましくは1mm〜10mmであり、更に好ましくは2mm〜10mmである。
また、長さは、好ましくは5mm〜300mmであり、より好ましくは5mm〜200mmであり、より好ましくは5mm〜100mmであり、更に好ましくは20mm〜150mmであり、更に好ましくは30mm〜100mmである。
また、表面積は区分発熱部としての機能を有すれば制限はないが、好ましくは約50cm以下であり、より好ましくは約40cm以下であり、更に好ましくは約25cm未満であり、更に好ましくは20cm未満である。
前記区分発熱部の容積又は発熱組成物成形体の容積は、好ましくは0.015cm〜500cmであり、好ましくは0.04cm〜500cmであり、より好ましくは0.04cm〜30cmであり、更に好ましくは0.1cm〜30cmであり、更に好ましくは1cm〜30cmであり、更に好ましくは1.25cm〜20cmであり、更に好ましくは1.25cm〜10cmであり、更に好ましくは3cm〜10cmである。
Although there is no restriction | limiting in the size of the said division | segmentation exothermic part or the said exothermic composition molded object, A preferable size is as follows.
1) In the case of a circular shape, a disc shape, and a disc-like shape The diameter is preferably about 1 mm to about 60 mm, more preferably 2 mm to 50 mm, still more preferably 10 mm to 40 mm, and further preferably 20 mm to 30 mm. It is.
The height is preferably 0.1 mm to 20 mm, more preferably 0.3 mm to 20 mm, still more preferably 0.5 mm to 20 mm, still more preferably 1 mm to 20 mm, more preferably 1. It is 5 mm-10 mm, More preferably, it is 3 mm-9 mm, More preferably, it is 4 mm-8 mm, More preferably, it is 5 mm-7 mm.
The volume is preferably from about 0.0045 cm 3 to about 20 cm 3 , more preferably from about 0.2 cm 3 to about 11 cm 3 .
2) When the shape is other than 1) (rectangular shape, rectangular-like shape, etc.) The width is preferably 0.5 mm to 60 mm, more preferably 0.5 mm to 50 mm, and preferably 0.5 mm to 50 mm. More preferably, it is 1 mm-50 mm, More preferably, it is 3 mm-50 mm, More preferably, it is 3 mm-30 mm, More preferably, it is 5 mm-20 mm, More preferably, it is 5 mm-15 mm, More preferably Is 5 mm to 10 mm.
Further, the height is preferably 0.1 mm to 30 mm, more preferably 0.1 mm to 20 mm, still more preferably 0.1 mm to 10 mm, still more preferably 0.3 mm to 10 mm, and further Preferably they are 0.5 mm-10 mm, More preferably, they are 1 mm-10 mm, More preferably, they are 2 mm-10 mm.
Further, the length is preferably 5 mm to 300 mm, more preferably 5 mm to 200 mm, more preferably 5 mm to 100 mm, still more preferably 20 mm to 150 mm, and further preferably 30 mm to 100 mm.
Further, the surface area is not limited as long as it has a function as a segmented heat generating portion, but is preferably about 50 cm 2 or less, more preferably about 40 cm 2 or less, still more preferably less than about 25 cm 2 , still more preferably. Is less than 20 cm 2 .
The volume of the section heat generating part or the volume of the exothermic composition molded body is preferably 0.015 cm 3 to 500 cm 3 , preferably 0.04 cm 3 to 500 cm 3 , more preferably 0.04 cm 3 to 30 cm 3. , and still more preferably from 0.1cm 3 ~30cm 3, more preferably from 1cm 3 ~30cm 3, still more preferably from 1.25 cm 3 to 20 cm 3, more preferably 1.25cm 3 ~10cm 3 , and still more preferably from 3cm 3 ~10cm 3.

前記区分け部の幅は区分発熱部を間隔を置いて設けることができる区分けができれば制限はないが、通常0.1mm〜50mmであり、好ましくは0.3mm〜50mmであり、より好ましくは0.3mm〜50mmであり、更に好ましくは0.3mm〜40mmであり、更に好ましくは0.5mm〜30mmであり、更に好ましくは1mm〜20mmであり、更に好ましくは3mm〜10mmである。   The width of the dividing portion is not limited as long as the dividing heat generating portion can be provided with an interval, but is usually 0.1 mm to 50 mm, preferably 0.3 mm to 50 mm, more preferably 0.00 mm. It is 3 mm-50 mm, More preferably, it is 0.3 mm-40 mm, More preferably, it is 0.5 mm-30 mm, More preferably, it is 1 mm-20 mm, More preferably, it is 3 mm-10 mm.

被覆材は、波形形状を有する被覆材で、発熱組成組成形体と積層前の凸部を有する被覆材との間で、それらの高さと幅において、
波形状の被覆材の凸部の高さと発熱組成物成形体の高さの関係は、
(波形状の被覆材の凸部の高さ)/(発熱組成物成形体の高さ)=
好ましくは0.01〜1.5であり、より好ましくは0.01〜1.0であり、更に好ましくは0.01〜0.5であり、更に好ましくは0.01〜0.3であり、波形状の被覆材の凸部の幅と発熱組成物成形体の幅の関係は、
(発熱組成物成形体の幅)/(波形状の被覆材の凸部の幅)=
好ましくは0.6〜0.99であり、より好ましくは0.7〜0.99であり、更に好ましくは0.8〜0.99であり、更に好ましくは0.9〜0.99である被覆材である。
基材は
1)実質的に平面の基材
2)発熱組成物成形体の底面形状より大きく、ほぼ相似形の形状で、発熱組成物成形体の高さ未満の高さを有する凹部を有する基材
3)発熱組成物成形体の底面形状より大きく、ほぼ相似形の形状で、発熱組成物成形体の高さ以上の高さを有する凹部を有する基材から選択された1種である。
ここで、前記発熱組成物成形体の高さ未満の凹部有する基材又は凸部を有するの被覆材の場合、好ましくは、以下の関係を持つ。
基材の凹部の高さと発熱組成物成形体の高さの関係は、
(基材の凹部)/(発熱組成物成形体の高さ)=
好ましくは0.01〜0.99であり、より好ましくは0.01〜0.99であり、更に好ましくは0.01〜0.5であり、更に好ましくは0.01〜0.3であり、
波形状の被覆材の凸部の高さと発熱組成物成形体の高さの関係は、
(波形状の被覆材の凸部の高さ)/(発熱組成物成形体の高さ)=
好ましくは0.01〜1.5であり、より好ましくは0.01〜1.0であり、
更に好ましくは0.01〜0.5であり、更に好ましくは0.01〜0.3であり、
基材の凹部又は被覆材の凸部の幅と発熱組成物成形体の幅の関係は、
(発熱組成物成形体の幅)/(基材の凹部又は波形状の被覆材の凸部の幅)=
好ましくは0.6〜0.99であり、より好ましくは0,7〜0.99であり、
更に好ましくは0.8〜0.99であり、更に好ましくは0.9〜0.99である。
本発明において、実質的に平面状とは、発熱組成物成形体を収納する又は覆うために予め設けられた収納用のポケット、収納区画、収納区域、覆いポケット、覆い区画、覆い区域、波形状覆い等の収納用凹部や凸部を有しない平らな面をいう。従って、意図的に発熱組成物成形体を収納しない又は覆うためでない凹凸は存在してもよい。意図的な発熱組成物成形体の収納用でない凹凸や覆い用でない凹凸は収納区域ではないので、そのような凹凸が基材又は被覆材にあっても、実質的な平面状の基材または実質的な平面状の被覆材とする。
The covering material is a covering material having a corrugated shape, and between the exothermic composition composition and the covering material having the convex part before lamination, in their height and width,
The relationship between the height of the convex portion of the corrugated coating material and the height of the exothermic composition molded body is as follows:
(Height of convex part of wave-shaped coating material) / (Height of exothermic composition molded body) =
Preferably it is 0.01-1.5, More preferably, it is 0.01-1.0, More preferably, it is 0.01-0.5, More preferably, it is 0.01-0.3 The relationship between the width of the convex portion of the wave-shaped coating material and the width of the exothermic composition molded body is
(Width of exothermic composition molded body) / (Width of convex portion of wave-shaped coating material) =
Preferably it is 0.6-0.99, More preferably, it is 0.7-0.99, More preferably, it is 0.8-0.99, More preferably, it is 0.9-0.99 It is a covering material.
The base material is 1) a substantially flat base material 2) a base having a concave portion having a shape substantially larger than the bottom surface shape of the exothermic composition molded body and having a height less than the height of the exothermic composition molded body. Material 3) One type selected from base materials having a substantially larger shape than the bottom shape of the exothermic composition molded body and having a recess having a height equal to or higher than the height of the exothermic composition molded body.
Here, in the case of a base material having a concave portion less than the height of the exothermic composition molded body or a covering material having a convex portion, the following relationship is preferably satisfied.
The relationship between the height of the concave portion of the substrate and the height of the exothermic composition molded body is as follows:
(Concavity of base material) / (Height of exothermic composition molded body) =
Preferably it is 0.01-0.99, More preferably, it is 0.01-0.99, More preferably, it is 0.01-0.5, More preferably, it is 0.01-0.3 ,
The relationship between the height of the convex portion of the corrugated coating material and the height of the exothermic composition molded body is as follows:
(Height of convex part of wave-shaped coating material) / (Height of exothermic composition molded body) =
Preferably it is 0.01 to 1.5, more preferably 0.01 to 1.0,
More preferably, it is 0.01-0.5, More preferably, it is 0.01-0.3,
The relationship between the width of the concave portion of the substrate or the convex portion of the covering material and the width of the exothermic composition molded body is as follows:
(Width of exothermic composition molded body) / (width of concave portion of substrate or convex portion of corrugated covering material) =
Preferably it is 0.6 to 0.99, more preferably 0.7 to 0.99,
More preferably, it is 0.8-0.99, More preferably, it is 0.9-0.99.
In the present invention, the substantially planar shape means a storage pocket, storage compartment, storage area, cover pocket, cover compartment, cover area, corrugated shape that is provided in advance to store or cover the exothermic composition molded body. A flat surface that does not have a concave or convex portion for storage such as a cover. Accordingly, there may be irregularities that are not intended to house or cover the exothermic composition molded body. Since unevenness that is not intended for storage of the intentionally exothermic composition molded body or unevenness that is not intended for covering is not a storage area, even if such unevenness is present in the base material or coating material, a substantially planar base material or A typical planar covering material is used.

本発明の発熱組成物成形体及び発熱体の製造方法に使用される発熱組成物としては発熱組成物成形体が形成でき、基材と被覆材とにより発熱組成物成形体の周縁部がシールできれば制限はない。一例として前記発熱組成物が挙げられるが、更に詳しく説明すると、本発明では、
(1)発熱組成物中の水分が空気遮断層としてのバリアとして機能せず、空気と接触して発熱する発熱組成物(易動水値0.01〜20)と
(2)発熱組成物中の水分が空気遮断層としてのバリアとして機能し、一定量の水分を除いた後の発熱組成物が空気と接触して発熱する発熱組成物(易動水値20を越えて〜50)との2種類の発熱組成物が使用できる。
特に、プリーツ型発熱体が製造可能な成形性を有し、発熱組成物の製造直後、風のない20℃の環境下の空気中に放置後、5分以内に1℃以上発熱する成形性含水発熱組成物としては、その易動水値は、好ましくは0.01以上〜14未満であり、より好ましくは0.01〜13.5であり、更に好ましくは0.01〜13であり、更に好ましくは0.01〜12であり、更に好ましくは1〜12であり、更に好ましくは3〜12であり、更に好ましくは5〜11である。
The exothermic composition molded body of the present invention and the exothermic composition used in the manufacturing method of the exothermic body can be formed as a exothermic composition molded body, and the peripheral portion of the exothermic composition molded body can be sealed by the base material and the coating material. There is no limit. As an example, the exothermic composition may be mentioned. In more detail, in the present invention,
(1) Exothermic composition (movable water value of 0.01 to 20) which does not function as a barrier as an air blocking layer and generates heat when it comes into contact with air (2) In the exothermic composition The exothermic composition that functions as a barrier as an air barrier layer and exothermic composition after excluding a certain amount of moisture generates heat when in contact with air (over a mobile water value of 20 to 50) Two exothermic compositions can be used.
In particular, it has moldability capable of producing a pleated heating element, and immediately after the production of the exothermic composition, it is left in air at 20 ° C. in an air environment, and the moldable water content generates heat of 1 ° C. or more within 5 minutes. The exothermic water value of the exothermic composition is preferably from 0.01 to less than 14, more preferably from 0.01 to 13.5, still more preferably from 0.01 to 13, Preferably it is 0.01-12, More preferably, it is 1-12, More preferably, it is 3-12, More preferably, it is 5-11.

はじめに、波形シートの製造方法及び製造装置について説明する。
まず、本発明の波形シート製造装置を詳細に説明する。
First, a corrugated sheet manufacturing method and manufacturing apparatus will be described.
First, the corrugated sheet manufacturing apparatus of the present invention will be described in detail.

本発明に波形シートの製造装置は、次のようにして構成される。
図2に示されるように、断面形状が略三角形状の柱体から構成される基台2には、複数の溝部3がシートの挿入方向に沿って隣接して設けられ、各溝部3を横断するようにして回転軸8がシートの挿入方向に並んで設けられている。
そして、最上流側(シートの挿入側)の第1凸部ロール軸8には、1個の凸部ロール7(押し込み部材)が、中央に設けられ、第2凸部ロール軸8には、その両側に凸部ロール7を加え、第3凸部ロール軸8には、更にその両側に凸部ロール7を加え、第4凸部ロール軸には、これらの両側に凸部ロールを加え、中央部及びその両側又その両側またその両側となるように配置される。図示されるものでは、1、3、5、7個というように、シートの挿入側から、凸部ロール7を漸次増加するように構成される。
The corrugated sheet manufacturing apparatus according to the present invention is configured as follows.
As shown in FIG. 2, a plurality of groove portions 3 are provided adjacent to each other along the sheet insertion direction in the base 2 constituted by a column having a substantially triangular cross-sectional shape, and cross each groove portion 3. Thus, the rotation shaft 8 is provided side by side in the sheet insertion direction.
The first convex roll shaft 8 on the most upstream side (sheet insertion side) is provided with a single convex roll 7 (pressing member) in the center, and the second convex roll shaft 8 has The convex roll 7 is added to both sides, the convex roll 7 is further added to both sides of the third convex roll shaft 8, the convex roll is added to both sides of the fourth convex roll axis, The central part and the both sides thereof, the both sides thereof, or both sides thereof are arranged. In the illustrated example, the number of convex rolls 7 is gradually increased from the sheet insertion side, such as 1, 3, 5, and 7.

受け側ロール21は、図4に示すように、円筒状のロールの周方向に延設された、複数の凹部(他の溝部)22を、その軸方向に隣接して設けることにより構成される。尚、凹部22は、前記基台2に設けられた溝部3と対向するように配置される。
この受け側ロール21の回転軸9を、基台2に設けられた各軸8と平行に配置し、凹部22に挿入される周方向に延設された複数の凸部ロール7を受け側ロール21の外周面に沿って備えた凹部22に嵌入してが波形シートの製造装置1となる。
この製造装置1の凹部22と凸部ロール7との隙間に、シート部材29を介挿して、波形シートを連続形成する。
As shown in FIG. 4, the receiving-side roll 21 is configured by providing a plurality of concave portions (other groove portions) 22 extending in the circumferential direction of the cylindrical roll adjacent to the axial direction. . In addition, the recessed part 22 is arrange | positioned so that the groove part 3 provided in the said base 2 may be opposed.
The rotating shaft 9 of the receiving roll 21 is arranged in parallel with the respective shafts 8 provided on the base 2, and a plurality of protruding rolls 7 extending in the circumferential direction are inserted into the recessed portions 22. The corrugated sheet manufacturing apparatus 1 is formed by being fitted into the recess 22 provided along the outer peripheral surface of the corrugated sheet 21.
A corrugated sheet is continuously formed by inserting a sheet member 29 into the gap between the concave portion 22 and the convex portion roll 7 of the manufacturing apparatus 1.

尚、シート部材の搬送は別ロール駆動で行ってもよい。
尚、各凸部ロール軸8に設けられる凸部ロール7の数は、図示したものに制限するものではなく、波形シートに形成すべき凹凸の数に応じて適宜増減することができる。
本発明における押し込み部材は、駆動方式でも、自在回転式でも回転方式に制限はない。形状も曲面状のものや平面状のものが一例として挙げられる。
The sheet member may be conveyed by another roll drive.
In addition, the number of the convex rolls 7 provided on each convex roll shaft 8 is not limited to the illustrated one, and can be appropriately increased or decreased according to the number of irregularities to be formed on the corrugated sheet.
The pushing member in the present invention is not limited to a driving method, a freely rotating type, or a rotating method. Examples of the shape include a curved surface and a planar shape.

これにより、例えば、図6に示すように、多孔質フィルムと不織布の積層体や不織布からなるシート部材を波形に曲折して波形シート40が得られる。この波形シート40を、被覆材として使用すれば、図15に示されるストライプ状の区分発熱部を有する発熱体を得ることができる。尚、図6の波形シートに関しては、例えば、不織布からなる平坦な基材シート41が接着されており、これによって複数の凸部が並んで立設する波形形状が強固に保持されている。   Thereby, for example, as shown in FIG. 6, a corrugated sheet 40 is obtained by bending a sheet member made of a laminate of a porous film and a nonwoven fabric or a nonwoven fabric into a corrugated shape. If this corrugated sheet 40 is used as a covering material, a heating element having striped segmented heating portions shown in FIG. 15 can be obtained. In addition, regarding the corrugated sheet of FIG. 6, for example, a flat base sheet 41 made of a non-woven fabric is bonded, and thereby the corrugated shape in which a plurality of convex portions are erected side by side is firmly held.

受け側ロール21は、例えば直径が100〜1000mm程度の大きさの回転ドラム体であって、図4に示すように、その外周面に凹部22が軸9方向に等間隔で配置される。   The receiving-side roll 21 is a rotating drum body having a diameter of about 100 to 1000 mm, for example, and as shown in FIG. 4, the recesses 22 are arranged on the outer peripheral surface at equal intervals in the direction of the axis 9.

凸部ロール7は、受け側ロール21よりも小さな、例えば、直径が2〜100mm程度である。   The convex roll 7 is smaller than the receiving roll 21, for example, has a diameter of about 2 to 100 mm.

回転軸8間において、隣接する凸部ロール7と凸部ロール7の距離は制限はないが、好ましくは2.5〜200mmであり、より好ましくは2.5〜100mmであり、更に好ましくは2.5〜50mmであり、更に好ましくは2.5〜30mmであり、更に好ましくは2.5〜30mmであり、更に好ましくは5〜30mmである。   The distance between the adjacent convex roll 7 and the convex roll 7 between the rotating shafts 8 is not limited, but is preferably 2.5 to 200 mm, more preferably 2.5 to 100 mm, and still more preferably 2 It is 0.5-50 mm, More preferably, it is 2.5-30 mm, More preferably, it is 2.5-30 mm, More preferably, it is 5-30 mm.

ここで、受側ロール21の凹部22の幅は制限はないが、好ましくは1〜200mmであり、より好ましくは1〜150mmであり、更に好ましくは1〜100mmであり、更に好ましくは3〜50mmであり、更に好ましくは3〜20mmであり、更に好ましくは3〜15mmである。
凹部22の深さは制限ないが、好ましくは0.5〜50mmであり、より好ましくは1〜30mmであり、更に好ましくは1〜20mmであり、更に好ましくは5〜20mmであり、更に好ましくは5〜10mmである。
Here, the width of the recess 22 of the receiving roll 21 is not limited, but is preferably 1 to 200 mm, more preferably 1 to 150 mm, still more preferably 1 to 100 mm, and further preferably 3 to 50 mm. More preferably, it is 3-20 mm, More preferably, it is 3-15 mm.
The depth of the recess 22 is not limited, but is preferably 0.5 to 50 mm, more preferably 1 to 30 mm, still more preferably 1 to 20 mm, still more preferably 5 to 20 mm, and still more preferably. 5-10 mm.

また、凸部7の幅は制限はないが、好ましくは1〜200mmであり、より好ましくは1〜150mmであり、更に好ましくは1〜100mmであり、更に好ましくは3〜50mmであり、更に好ましくは3〜20mmであり、更に好ましくは3〜15mmである。
凸部7の高さは制限ないが、好ましくは0.5〜80mmであり、より好ましくは1〜60mmであり、更に好ましくは1〜50mmであり、更に好ましくは5〜50mmであり、更に好ましくは5〜40mmである。
Further, the width of the convex portion 7 is not limited, but is preferably 1 to 200 mm, more preferably 1 to 150 mm, still more preferably 1 to 100 mm, still more preferably 3 to 50 mm, and still more preferably. Is 3 to 20 mm, more preferably 3 to 15 mm.
The height of the convex portion 7 is not limited, but is preferably 0.5 to 80 mm, more preferably 1 to 60 mm, still more preferably 1 to 50 mm, still more preferably 5 to 50 mm, and still more preferably. Is 5-40 mm.

受け側ロール21の外周面と押し込み部材7の距離は、シート部材29が通過できれば制限はないが、好ましくは0.5〜30mmであり、より好ましくは1〜20mmであり、更に好ましくは1〜10mmであり、更に好ましくは1〜5mmであり、更に好ましくは3〜5mmである。   The distance between the outer peripheral surface of the receiving roll 21 and the pushing member 7 is not limited as long as the sheet member 29 can pass through, but is preferably 0.5 to 30 mm, more preferably 1 to 20 mm, and still more preferably 1 to 1. It is 10 mm, More preferably, it is 1-5 mm, More preferably, it is 3-5 mm.

また、MD方向における凸状ロール7の外周と隣接凸状ロール7の外周との隙間は、シート部材29に実質上使用不能な皺が生じなければ制限はないが、好ましくは300mm以下であり、より好ましくは0.01〜300mmであり、更に好ましくは0.01〜200mmであり、更に好ましくは0.01〜100mであり、更に好ましくは0.01〜50mmであり、更に好ましくは0.01〜30mであり、更に好ましくは0.01〜20mであり、更に好ましくは0.01〜10mmであり、更に好ましくは0.01〜5mmである。   Further, the gap between the outer periphery of the convex roll 7 in the MD direction and the outer periphery of the adjacent convex roll 7 is not limited unless wrinkles that are substantially unusable occur in the sheet member 29, but preferably 300 mm or less, More preferably, it is 0.01-300 mm, More preferably, it is 0.01-200 mm, More preferably, it is 0.01-100 m, More preferably, it is 0.01-50 mm, More preferably, it is 0.01 It is -30m, More preferably, it is 0.01-20m, More preferably, it is 0.01-10mm, More preferably, it is 0.01-5mm.

図3(a)〜(c)は、図2の回転軸8に複数の凸状ロール7が固定された例を示す。尚、同図(b)は、駆動源12を軸8の端部に設けたものである。
図3や図4に示すように、凸状ロール7及び受け側ロールの凹部22の角部(エッジ部)をアールr状(略円弧状)に設けることが好ましい。即ち、エッジ部を略円弧状(アールr状)に形成することにより、シート部材の切れや通気性シート部材の通気性を変化させることなく、波形シート部材が製造できる。
このアールr状(略円弧状)は、波形シート部材が実用上支障が生じる変化を起こさなければ制限はないが、曲率半径が、好ましくは0.1〜20.0mmであり、より好ましくは0.1〜10.0mmであり、更に好ましくは0.1〜5.0mmであり、更に好ましくは0.3〜5.0mmであり、更に好ましくは0.3〜3.0mmであり、更に好ましくは0.5〜2.0mmである。
3A to 3C show an example in which a plurality of convex rolls 7 are fixed to the rotating shaft 8 of FIG. FIG. 2B shows the drive source 12 provided at the end of the shaft 8.
As shown in FIG. 3 and FIG. 4, it is preferable to provide the corner | angular part (edge part) of the convex roll 7 and the recessed part 22 of a receiving side roll in round shape (substantially circular arc shape). That is, the corrugated sheet member can be manufactured without forming the edge portion and changing the air permeability of the air permeable sheet member by forming the edge portion in a substantially arc shape (R shape).
The radius r shape (substantially arc shape) is not limited as long as the corrugated sheet member does not cause a change that causes practical problems, but the curvature radius is preferably 0.1 to 20.0 mm, more preferably 0. 0.1 to 10.0 mm, more preferably 0.1 to 5.0 mm, still more preferably 0.3 to 5.0 mm, still more preferably 0.3 to 3.0 mm, and still more preferably. Is 0.5 to 2.0 mm.

また、凹部22及び凸状ロール7等のシート部材29と接触する部分で、ロールや装置の少なくとも一方の該部分が低摩擦性であることが好ましい。例えば、摺動性の高い合成樹脂や平滑性に優れた金属から構成されるロールや装置が一例として挙げられる。   Moreover, it is preferable that at least one part of the roll or the apparatus is a low friction property in the part in contact with the sheet member 29 such as the concave part 22 and the convex roll 7. For example, a roll or an apparatus made of a synthetic resin having high slidability or a metal having excellent smoothness can be given as an example.

また、凹部22と凸状ロール7は補形を成し、凹部22間の仕切り部と凸状ロール7間の仕切部が補形を成すことが好ましい。更に凸状ロール7間の仕切部及びTD方向の端部において皺防止面を設け、凹部22間の仕切り部やTD方向の端部においてシート部材29の変形を防止することにより実用上使用不可能な皺を発生させず、正確な波形シートが製造できる。   Moreover, it is preferable that the recessed part 22 and the convex roll 7 form a complement, and the partition part between the recessed parts 22 and the partition part between the convex rolls 7 form a complement. Furthermore, it is impossible to use practically by providing a wrinkle prevention surface at the partition between the convex rolls 7 and at the end in the TD direction, and preventing deformation of the sheet member 29 at the partition between the recesses 22 and at the end in the TD direction. Accurate corrugated sheets can be manufactured without generating wrinkles.

また、図2に示されるように、本発明では、押し込み部材を回転ロール(凸状ロール7)により構成し、シート部材の挿入側の中央側には、凸状ロールを最も多く隣接して配置し、両側に向かって、凸状ロール7の数を少なくしている。   Further, as shown in FIG. 2, in the present invention, the push-in member is constituted by a rotating roll (convex roll 7), and the convex roll is arranged adjacent to the center side on the insertion side of the sheet member most frequently. However, the number of the convex rolls 7 is reduced toward both sides.

また、図示しないが、波形シート製造装置1の下流側には、基材シートを接合する接合手段として、ヒートシールロールを備える。   Moreover, although not shown in figure, the heat seal roll is provided in the downstream of the corrugated sheet manufacturing apparatus 1 as a joining means which joins a base material sheet.

このように、本実施の形態の波形シート製造装置1によれば、シート部材を安定した状態で搬送してシート部材の通気性の変化や伸張や破断を防止しつつ、シート部材を波形に容易に曲折して波形シートを形成することができる。   As described above, according to the corrugated sheet manufacturing apparatus 1 of the present embodiment, the sheet member can be easily corrugated while the sheet member is conveyed in a stable state to prevent a change in air permeability of the sheet member, expansion, and breakage. Can be bent to form a corrugated sheet.

図5(a)〜(e)により、波形シートの製造方法を段階的に説明する。
図5(a)は、受け側ロール21と押し込みロール7の関係を示している。
図5(b)では、シート部材29が第1凸部ロール軸8の配設位置まで搬送されると、その中央部分が、第1凸部ロール軸8の凸部ロール7によって中央の凹部22に押し込まれ、凹部22と凸部ロール7との隙間に挟み込まれることにより、波形に曲折されて中央の波形部が形成される。中央に波形部が形成されたシート部材29は、受け側ロール21及び第1凸部ロール軸の回転により、通過時の摩擦をほとんど生じることなく下流の第2凸部ロール軸8配設位置に向かって送り出される。
A corrugated sheet manufacturing method will be described step by step with reference to FIGS.
FIG. 5A shows the relationship between the receiving roll 21 and the push roll 7.
In FIG. 5 (b), when the sheet member 29 is conveyed to the position where the first convex roll shaft 8 is disposed, the central portion thereof is the central concave portion 22 by the convex roll 7 of the first convex roll shaft 8. And is sandwiched in the gap between the concave portion 22 and the convex portion roll 7 to be bent into a corrugated shape to form a central corrugated portion. The sheet member 29 having the corrugated portion formed at the center is positioned at the downstream position of the second convex roll shaft 8 with little friction during passage due to the rotation of the receiving roll 21 and the first convex roll shaft. It is sent out towards.

図5(c)では、シート部材29が第2凸部ロール軸8の配設位置まで搬送されると、第2凸部ロール軸8の3個の凸部ロール7によって、中央の凹部22及びその両側の凹部22にシート部材29が押し込まれ、これらの隙間に挟み込まれることにより、両側の波形部が形成されると共にシート部材29は、受け側ロール21及び第1凸部ロール軸8または凸部ロール7の回転により、通過時の摩擦をほとんど生じることなく下流の第3凸部ロール軸の配設位置に向かって送り出される。
図5(d)では、第3凸部ロール軸8の配設位置では、第3凸部ロール軸8の凸部ロール7によって、更に両側の波形部が形成されると共に、図5(e)に示すように、第4凸部ロール軸8の配設位置では、第4凸部ロール軸8の7個の凸部ロール7によって、更にその外側の波形部が形成されることにより、波形シート40が得られる。
更に、得られた波形シート40には、ヒートシールロールにより基材シート41を接合し、図6に示す基材シート41に支持された波形シート40を製造してもよい。
In FIG. 5C, when the sheet member 29 is conveyed to the arrangement position of the second convex roll shaft 8, the central concave 22 and the three convex rolls 7 of the second convex roll shaft 8 are used. When the sheet member 29 is pushed into the concave portions 22 on both sides and is sandwiched between these gaps, the corrugated portions on both sides are formed, and the sheet member 29 has the receiving-side roll 21 and the first convex roll shaft 8 or convex. By the rotation of the part roll 7, it is sent out toward the arrangement position of the downstream third convex part roll shaft with almost no friction during passage.
In FIG. 5D, at the position where the third convex roll shaft 8 is disposed, the convex rolls 7 of the third convex roll shaft 8 form further corrugated portions on both sides, and FIG. As shown in FIG. 4, the corrugated sheet is formed by forming the corrugated portion further outside by the seven convex rolls 7 of the fourth convex roll shaft 8 at the arrangement position of the fourth convex roll shaft 8. 40 is obtained.
Furthermore, the corrugated sheet 40 supported by the base sheet 41 shown in FIG. 6 may be manufactured by bonding the base sheet 41 to the corrugated sheet 40 obtained by a heat seal roll.

このように、本実施の形態によれば、波形に曲折したシート部材を送り出す際の摩擦カがほとんどかからず、従って、安定した状態でシート部材を搬送しながら波形シートを形成してゆくことができる。また、本実施の形態によれば、複数の凸部ロール軸8を用いて、中央から外側に向かって凹凸の波形部を順次一箇所ずつ形成して行くので、隣接する複数の凹凸を同時に形成する時の如く、シート部材の横断方向に遊びしろがないことによりシート部材に無理な張カを負荷させるようなことがなく、従ってシート部材の通気性変化や伸張や破断を効果的に回避することができる。   As described above, according to the present embodiment, there is almost no frictional force when the sheet member bent into a waveform is sent out, and therefore, the corrugated sheet is formed while the sheet member is conveyed in a stable state. Can do. In addition, according to the present embodiment, since the plurality of convex roll shafts 8 are used to sequentially form the concave and convex corrugated portions one by one from the center to the outside, a plurality of adjacent concave and convex portions are simultaneously formed. As is the case, the seat member is not forced to play in the transverse direction, so that the seat member is not subjected to excessive tension, and therefore, the air permeability change, expansion and breakage of the sheet member are effectively avoided. be able to.

また、本実施の形態では、各凸部ロール軸8間の距離を短くしているので、波形に曲折されたシート部材が凸部ロール軸8の凸部ロール7を離れてこれらの間を通過して行く際に、シート部材29を受け側ロール側21に保持できるが、
例えば、受け側ロール21の凹部22の底面に多数の吸引孔を形成すると共に、受け側ロール21の内部にエアー吸引手段を設けることにより、波形に曲折されたシート部材29が凸部ロール軸8を離れてこれらの間を通過して行く際に、シート部材29を受け側ロール側21に吸引されて、曲折された波形形状を更に強固に保持することができる。また、各凸部ロール軸8を、その外周面の回転速度が受け側ロール21の外周部の回転速度を同じになるように駆動制御すれば、より安定した状態でシート部材29を搬送することが可能になる。
Moreover, in this Embodiment, since the distance between each convex part roll axis | shaft 8 is shortened, the sheet | seat member bent in the waveform leaves | separates the convex part roll 7 of the convex part roll axis | shaft 8, and passes between these. In doing so, the sheet member 29 can be held on the receiving roll side 21,
For example, a plurality of suction holes are formed in the bottom surface of the concave portion 22 of the receiving side roll 21 and an air suction means is provided inside the receiving side roll 21 so that the sheet member 29 bent into a corrugated shape is formed on the convex portion roll shaft 8. When the sheet member 29 passes between the two, the sheet member 29 is attracted to the receiving roll side 21 and the bent waveform shape can be held more firmly. Moreover, if each convex roll shaft 8 is driven and controlled so that the rotational speed of the outer peripheral surface thereof is the same as the rotational speed of the outer peripheral part of the receiving roll 21, the sheet member 29 can be conveyed in a more stable state. Is possible.

更に、本実施の形態の波形シートの製造装置1は、設置面積の少ないコンパクトな装置とすることができる。   Furthermore, the corrugated sheet manufacturing apparatus 1 of the present embodiment can be a compact apparatus with a small installation area.

図17(a)、(b)は、本発明の他の実施の形態に係る波形シートの製造装置1を示すものであり、平板状の基台2と受け側部材21を用いたものである。
図18(a)、(b)は、図17の分解図である。
17 (a) and 17 (b) show a corrugated sheet manufacturing apparatus 1 according to another embodiment of the present invention, which uses a flat base 2 and a receiving member 21. FIG. .
18 (a) and 18 (b) are exploded views of FIG.

なお、本発明は上記各実施の形態に限定されることなく種々の変更が可能である。例えば、受け側ロールや押し込み部材の数は適宜設計することができ、外枠だけの押し込み部材の周囲に隣接して複数の受げ側ロールを設けることもできる。
また、受け側ロールや受け側凸部ロール軸や凸部ロール軸に形成する凹部や凸部ロールの数もまた任意に設計することができる。更に、本発明の波形シート製造装置は、発熱体の被覆材又は基材を波形に形成する場合に限定されることなく、吸収性物品のカバーシートを波形に形成する場合や、その他のシート部材を波形に形成する際にも使用することができる。更にまた、波形シートと基材シートとの接合は、ヒートシールの他、接着剤による接合や超音波接合等の他の接合手段を選択することもできる。本発明により製造された波形シートは、表面カバーシート、裏面カバーシートや、吸収体を構成する吸収シート等、吸収性物品の部材として有用であり、また清掃用シートとしても適用される。
The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the number of receiving-side rolls and pushing members can be designed as appropriate, and a plurality of receiving-side rolls can be provided adjacent to the periphery of the pushing member having only the outer frame.
Moreover, the number of the recessed part and convex part roll formed in a receiving side roll, a receiving side convex part roll axis | shaft, or a convex part roll axis | shaft can also be designed arbitrarily. Furthermore, the corrugated sheet manufacturing apparatus of the present invention is not limited to the case where the covering material or the base material of the heating element is formed into a corrugated shape, and the case where the cover sheet of the absorbent article is formed into a corrugated shape, or other sheet members Can also be used when forming a waveform. Furthermore, for joining the corrugated sheet and the base sheet, other joining means such as joining with an adhesive or ultrasonic joining can be selected in addition to heat sealing. The corrugated sheet produced according to the present invention is useful as a member of an absorbent article such as a front cover sheet, a back cover sheet, an absorbent sheet constituting an absorber, and is also applied as a cleaning sheet.

また、本実施の形態によれば、受け側部材は回転体及び押し込み部材が小さな回転ロールの整列群枠に組み込んだ押し込み部材であるので、設置面積が小さくコンパクトなものとなる。   Further, according to the present embodiment, the receiving side member is a pushing member in which the rotating body and the pushing member are incorporated in the aligned group frame of the small rotating rolls, so that the installation area is small and compact.

前記波形シート製造装置を使用したプリーツ型発熱体の製造方法及び製造装置について説明する。
図14には、本発明のプリーツ型発熱組成物成形体包装体製造装置(以下、単に発熱体製造装置という)が示されている。
本製造装置は、発熱組成物成形体製造装置44、波形シート状被覆材製造装置56、ヒートシール装置であるヒートシールロール26、カットロール51を備える。
A method and apparatus for manufacturing a pleated heating element using the corrugated sheet manufacturing apparatus will be described.
FIG. 14 shows a pleated exothermic composition molded body manufacturing apparatus (hereinafter simply referred to as a heating element manufacturing apparatus) according to the present invention.
The manufacturing apparatus includes a heat generating composition molded body manufacturing apparatus 44, a corrugated sheet-shaped coating material manufacturing apparatus 56, a heat seal roll 26 that is a heat seal apparatus, and a cut roll 51.

発熱組成物成形体の製造装置44により基材30上にストライプ状に発熱組成物成形体を配置し、波形シートの製造装置1により、被覆材29を波形に曲折して波形シート状被覆材とするとともに、波形シート状被覆材の各凸部内に発熱組成物成形体を収容するようにし、その周辺部をシールする。
該波形シートの製造装置1は、周方向に延設された、複数の凹部22を、外周部に沿って備え、凹部22は凸壁に寄って相互に離間された受け側ロール21と押し込み部材7を備え、該押し込み部材7は、受け側ロール21の回転最高点と回転方向の回転最低点との間に波形シート状被覆材29ができる間隔を有して受け側ロール21の外周に沿って設けられており、回転最低点付近において、基材30と波形シート状被覆29とが接触できる間隔を持って、無端状ベルト48に支持された基材30が受け側ロール21の外周と接するように設けられている。
受け側ロール21の凹部22に貫入される周方向に延設され、受け側ロール21と回転軸を平行にして設けられた回転可能の複数の凸状ロール7を基台2に取りつけた構造を有し、且つ、凸状ロール7の凸部は、受け側ロール21の外周の40%以下の外周面で凹溝に貫入している。
The exothermic composition molded body is arranged in stripes on the base material 30 by the exothermic composition molded body manufacturing apparatus 44, and the corrugated sheet manufacturing apparatus 1 is configured to bend the covering material 29 into a corrugated shape and At the same time, the exothermic composition molded body is accommodated in each convex portion of the corrugated sheet-like covering material, and its peripheral portion is sealed.
The corrugated sheet manufacturing apparatus 1 includes a plurality of concave portions 22 extending in the circumferential direction along the outer peripheral portion, and the concave portions 22 approach the convex wall and are separated from each other by the receiving roll 21 and the pushing member. 7, and the push-in member 7 has a gap that allows the corrugated sheet-like covering material 29 to be formed between the highest rotation point of the receiving-side roll 21 and the lowest rotation point in the rotation direction, along the outer periphery of the receiving-side roll 21. The base material 30 supported by the endless belt 48 is in contact with the outer periphery of the receiving-side roll 21 with an interval at which the base material 30 and the corrugated sheet-like coating 29 can contact each other in the vicinity of the lowest rotation point. It is provided as follows.
A structure in which a plurality of rotatable convex rolls 7 extending in a circumferential direction penetrating into the concave portion 22 of the receiving-side roll 21 and provided with the receiving-side roll 21 and the rotation axis parallel to each other are attached to the base 2. The convex portion of the convex roll 7 penetrates into the concave groove on the outer peripheral surface of 40% or less of the outer periphery of the receiving roll 21.

図8は波形シート押さえ具42の側面図である。
図9は波形シート押さえ具42の回転自在の押さえローラー7が発熱組成物成形体33を積層した基材30を覆う波形シート状被覆材29を深く押さえ搬送している関係を説明する説明断面図である。
図10は波形シート押さえ具42の回転自在の押さえローラー7が発熱組成物成形体33を積層した基材30を覆う波形シート状被覆材29を浅く押さえ搬送している関係を説明する説明断面図である。
図11(a)〜(d)は波形の深さを変えた波形シート状被覆材の例である。
図12(a)〜(d)は浅い波形の波形シート状被覆材29が発熱組成物成形体33を積層した基材30を覆い、発熱組成物成形体33の周縁部をヒートシールするまでを模式的に示した説明断面図である
図12(a)〜(d)は波形シート状被覆材29の深さを浅くし、TD方向の端部を除き、発熱組成物の高さの途中まで、波形シート状被覆材29が覆う例である。
所望の形状を有する型を使用した型成形等により成形され、基材30上に積層された発熱組成物成形体33の高さが高い場合には、波形シート状被覆材29のの深さを深くすると、発熱体にするために被覆材29と基材30をシールした時に、発熱体のMD方向の端部に皺が発生する場合がある。。これを防止するために、浅い波形シート状被覆材29(図12(a))に使用し、発熱組成物成形体33が積層された基材30(図12(b))に被せた後(図12(c))、ヒートシールにより、熱可塑性樹脂で形成された被覆材29及び/又は基材30を伸ばし、シールすることにより、実害のある皺が発生することなく発熱体とすることができる。
図13は、プリーツ型に発熱組成物成形体33が設けられ、発熱組成物成形体の周縁部のプリーツ部に相当する部分をヒートシールした斜視断面図である。
FIG. 8 is a side view of the corrugated sheet presser 42.
FIG. 9 is an explanatory cross-sectional view for explaining the relationship in which the rotatable pressing roller 7 of the corrugated sheet pressing tool 42 deeply presses and conveys the corrugated sheet covering material 29 covering the base material 30 on which the exothermic composition molded body 33 is laminated. It is.
FIG. 10 is an explanatory cross-sectional view for explaining the relationship in which the rotatable pressing roller 7 of the corrugated sheet pressing tool 42 presses and conveys the corrugated sheet-shaped covering material 29 covering the base material 30 on which the exothermic composition molded body 33 is laminated. It is.
FIGS. 11A to 11D are examples of corrugated sheet-like covering materials with varying corrugation depths.
12 (a) to 12 (d), the corrugated sheet-shaped covering material 29 having a shallow corrugation covers the base material 30 on which the exothermic composition molded body 33 is laminated, and the peripheral portion of the exothermic composition molded body 33 is heat sealed. FIGS. 12A to 12D are schematic cross-sectional views illustrating the corrugated sheet-like covering material 29 with a shallow depth, up to the middle of the height of the exothermic composition excluding the end in the TD direction. This is an example in which the corrugated sheet-shaped covering material 29 covers.
When the height of the exothermic composition molded body 33 formed by molding using a mold having a desired shape and laminated on the base material 30 is high, the depth of the corrugated sheet-shaped covering material 29 is set to When the depth is increased, wrinkles may occur at the end of the heating element in the MD direction when the covering material 29 and the base material 30 are sealed to form a heating element. . In order to prevent this, it is used for the shallow corrugated sheet-like covering material 29 (FIG. 12A), and after covering the base material 30 (FIG. 12B) on which the exothermic composition molded body 33 is laminated ( FIG. 12 (c)), by extending and sealing the covering material 29 and / or the base material 30 formed of thermoplastic resin by heat sealing, a heating element can be obtained without causing harmful flaws. it can.
FIG. 13 is a perspective cross-sectional view in which the exothermic composition molded body 33 is provided in a pleat mold, and a portion corresponding to the pleat portion at the peripheral edge of the exothermic composition molded body is heat-sealed.

次に、プリーツ型発熱体の製造方法について説明する。
図14に示すように、発熱体製造装置43は、発熱組成物成形体製造装置44を用いて、発熱組成物32を成形し、その成形体であるを発熱組成物成形体33をストライプ状に間隔を置いて基材上に積層し、波形シート状被覆材被覆工程へ搬送される。
一方、多孔質フィルムと不織布の積層体である被覆材29は被覆材供給装置(図示せず)を介して波形シートの製造装置1に供給され、所定の回転速度で駆動制御されている受け側ロール21に巻回され、これの外周部に沿って送り出し方向Tに搬送移動される。被覆材29が第1凸部ロール軸の配設位置まで搬送されると、図5(b)に示すように、その中央部分が、第1凸部ロール軸の凸部ロール7によって中央の凹部に押し込まれ、凹部22と凸部ロール7との隙間に挟み込まれることにより、波形に曲折されて中央の波形部が形成される。中央に波形部が形成された被覆材は、受け側ロール21及び第1凸部ロール軸の回転により、通過時の摩擦をほとんど生じることなく下流の第2凸部ロール軸配設位置に向かって送り出される。
被覆材29が第2凸部ロール軸の配設位置まで搬送されると、図5(c)に示すように、第2凸部ロール軸の3個の凸部ロール7によって、中央の凹部及びその両側の凹部に被覆材29が押し込まれ、これらの隙間に挟み込まれることにより、両側の波形部が形成されると共に被覆材は、受け側ロール21及び第1凸部ロール軸または凸部ロール7の回転により、通過時の摩擦をほとんど生じることなく下流の第3凸部ロール軸の配設位置に向かって送り出される。第3凸部ロール軸の配設位置では、図5(d)に示すように、第3凸部ロール軸の5個の凸部ロール7によって、更に両側の波形部が形成されると共に、第4凸部ロール軸の配設位置では、図5(e)に示すように、第4凸部ロール軸の7個の凸部ロール7によって、更にその外側の波形部が形成されることにより、波形シート状被覆材29が得られ、得られた波形シート状被覆材29は、波形シート状被覆材被覆工程へ搬送され、発熱組成物成形体が積層された基材30を被覆し、発熱組成物成形体33の周縁部及びプリーツ型発熱体33の周辺部をヒートシールロールによりヒートシールし、カットロールでカットされ、所望のシール部を有するプリーツ型発熱体33が得られる。
Next, a method for manufacturing a pleated heating element will be described.
As shown in FIG. 14, the heating element manufacturing apparatus 43 forms the heating composition 32 using the heating composition molded body manufacturing apparatus 44, and the heating composition molding 33 is formed into a stripe shape. Laminated on the base material at intervals, and conveyed to the corrugated sheet-like coating material coating step.
On the other hand, a covering material 29, which is a laminate of a porous film and a nonwoven fabric, is supplied to the corrugated sheet manufacturing apparatus 1 via a covering material supply apparatus (not shown) and is driven and controlled at a predetermined rotational speed. It is wound around a roll 21 and conveyed and moved in the feed-out direction T along the outer peripheral portion thereof. When the covering material 29 is conveyed to the arrangement position of the first convex roll shaft, as shown in FIG. 5 (b), the central portion thereof is the central concave portion by the convex roll 7 of the first convex roll shaft. And is sandwiched in the gap between the concave portion 22 and the convex portion roll 7 to be bent into a corrugated shape to form a central corrugated portion. The coating material with the corrugated portion formed in the center is directed toward the downstream second convex roll shaft arrangement position with little friction during passage due to the rotation of the receiving roll 21 and the first convex roll shaft. Sent out.
When the covering material 29 is conveyed to the arrangement position of the second convex roll shaft, as shown in FIG. 5C, the central concave portion and the central convex portion 7 are formed by the three convex rolls 7 of the second convex roll shaft. The covering material 29 is pushed into the concave portions on both sides thereof and is sandwiched between these gaps, whereby the corrugated portions on both sides are formed, and the covering material is the receiving roll 21 and the first convex roll shaft or the convex roll 7. Is rotated toward the arrangement position of the downstream third convex roll shaft with almost no friction during passage. At the arrangement position of the third convex roll shaft, as shown in FIG. 5 (d), the five convex rolls 7 of the third convex roll shaft further form corrugated portions on both sides, At the arrangement position of the four convex roll shafts, as shown in FIG. 5 (e), the seven convex rolls 7 of the fourth convex roll shaft further form the corrugated portion on the outside thereof, The corrugated sheet-shaped covering material 29 is obtained, and the obtained corrugated sheet-shaped covering material 29 is conveyed to the corrugated sheet-shaped covering material coating step, covering the base material 30 on which the exothermic composition molded body is laminated, and the exothermic composition The peripheral part of the product molded body 33 and the peripheral part of the pleated heating element 33 are heat-sealed with a heat seal roll and cut with a cut roll to obtain a pleated heating element 33 having a desired sealing part.

次に、本発明のプリーツ型発熱体を説明する。
図15(a)は本発明の一実施の形態であるプリーツ型発熱体34の平面図であり、発熱組成物成形体33を有しない、シール部である区分け部57を間隔として、5個の区分発熱部52が間隔をおいて設けられている。図15(b)は同Z−Zの断面図である。
図15(c)は、同図(a)の基材30側に、粘着材層53を介してセパレータ55を設けたものである。
図15(d)は、同図(a)の通気性面側(被覆材29側)にメルトブロー方式により網状に設けた通気性粘着剤層54を介してセパレータを設けたものである。
Next, the pleated heating element of the present invention will be described.
FIG. 15A is a plan view of a pleated heating element 34 according to an embodiment of the present invention. The pleated heating element 34 does not have the heating composition molded body 33, and is divided into five pieces with a separation part 57 as a seal part as an interval. The divided heat generating parts 52 are provided at intervals. FIG. 15B is a sectional view taken along the line ZZ.
FIG. 15C shows a separator 55 provided on the substrate 30 side of FIG.
FIG. 15D shows a separator provided via a breathable pressure-sensitive adhesive layer 54 provided in a net shape on the breathable surface side (coating material 29 side) of FIG.

図16(a)は、図15(a)の通気性面側(被覆材29側)に通気調整材36を設けたものである。詳細には、区分け部57と区分発熱部52とを備え、区分発熱部52の上面に通気粘着材層54を介して通気調整材36を設け、通気調整材36の下方に通気路としての空間37を設けたものである。図16(b)は同Y−Yの断面図である。   FIG. 16A is a view in which a ventilation adjusting material 36 is provided on the air permeable surface side (the coating material 29 side) of FIG. Specifically, it includes a sorting part 57 and a sorting heat generating part 52, a ventilation adjusting material 36 is provided on the upper surface of the sorting heating part 52 via a ventilation adhesive material layer 54, and a space as a ventilation path below the ventilation adjusting material 36. 37 is provided. FIG. 16B is a sectional view taken along the line Y-Y.

易動水値とは、発熱組成物中に存在する水分の中で発熱組成物外へ移動できる余剰水分の量を示す値である。
易動水値の測定は次のようにする。
常温常圧で、中心点から放射状に45度間隔で8本の線が書かれたNo.2(JIS P3801 2種)の濾紙を、ステンレス板上に置き、前記濾紙の中心に、内径20mm×高さ8mmの中空円筒状の穴を待つ長さ150mm×幅100mmの型板を置き、その中空円筒状の穴付近に試料を置き、押し込み板を型板上に沿って動かし、試料を押し込みながら中空円筒状の穴へ入れ、型板の上面に沿って、試料を擦り切る(型押し込み成形)。次に、前記穴を覆うように非吸水性の70μmポリエチレンフィルムを置き、更に、その上に、厚さ5mm×長さ150mm×幅150mmのステンレス製平板を置き、発熱反応が起こらないようにして、5分間保持する。
その後、濾紙を取り出し、放射状に書かれた線に沿って、水又は水溶液の浸みだし軌跡を中空円筒の穴の縁である円周部から浸みだし先端までの距離として、mm単位で読み取る。同様にして、各線上からその距離を読み取り、含計8個の値を得る。読み取った8個の各値(a,b,c,d,e,f,g,h)を測定水分値とする。その8個の測定水分値を算術平均したものをその試料の水分値(mm)とする。
一方、真の水分値を測定するための水分量は内径20mm×高さ8mmの前記発熱組成物等の重量に相当する前記発熱組成物等の配合水分量とし、その水分量に相当する水のみで同様に測定し、同様に算出したものを真の水分値(mm)とする。
水分値を真の水分値で除したものに100をかけた値が易動水値である。即ち、
易動水値=[水分値(mm)/真の水分値(mm)]×100
同一試料に対して、5回測定し、その5個の易動水値を平均し、その平均値をその試料の易動水値とする。尚、上記測定では、前記申心点から放射状に45度間隔で8本の線が書かれたNO.2(JIS P3801 2種)の濾紙31の各線に目盛りを付けてもよい。
The easy water value is a value indicating the amount of surplus water that can move out of the exothermic composition in the water present in the exothermic composition.
The mobile water value is measured as follows.
No. with eight lines written at 45 ° intervals radially from the center point at room temperature and normal pressure. 2 (JIS P3801 type 2) filter paper is placed on a stainless steel plate, and a template of 150 mm length x 100 mm width waiting for a hollow cylindrical hole with an inner diameter of 20 mm and a height of 8 mm is placed at the center of the filter paper. Place the sample near the hollow cylindrical hole, move the push plate along the mold plate, put the sample into the hollow cylindrical hole while pushing the sample, and scrape the sample along the upper surface of the mold plate (mold push molding) ). Next, a non-water-absorbing 70 μm polyethylene film is placed so as to cover the hole, and a stainless steel flat plate having a thickness of 5 mm × length of 150 mm × width of 150 mm is placed thereon so that no exothermic reaction occurs. Hold for 5 minutes.
Thereafter, the filter paper is taken out, and the trace of water or aqueous solution soaking is read in millimeters as the distance from the circumference that is the edge of the hole of the hollow cylinder to the tip of the soaking, along the radial line. Similarly, the distance is read from each line, and a total of 8 values are obtained. Each of the eight values read (a, b, c, d, e, f, g, h) is taken as a measured moisture value. The arithmetic average of the eight measured moisture values is taken as the moisture value (mm) of the sample.
On the other hand, the moisture content for measuring the true moisture value is the blended moisture content of the exothermic composition corresponding to the weight of the exothermic composition having an inner diameter of 20 mm × height of 8 mm, and only water corresponding to the moisture content Measured in the same manner, and calculated in the same manner as the true water value (mm).
The value obtained by dividing the moisture value by the true moisture value and multiplying by 100 is the easy water value. That is,
Easy water value = [moisture value (mm) / true water value (mm)] × 100
The same sample is measured five times, the five easy water values are averaged, and the average value is taken as the easy water value of the sample. In the above measurement, 8 lines are written at intervals of 45 degrees radially from the centroid. Each line of the filter paper 31 of 2 (JIS P3801 type 2) may be graduated.

発熱組成物中の余剰水は適量になると、組成物の成分中の親水基に対しては双極子相互作用又は水素結合等によって水和し、また、疎水基の周辺においても高い構造性を有して存在すると推定される。これにより砂ダンゴ状態になり、発熱組成物の成形性が生ずると推定される。これは何らかの意味で連結物質である連結水である。   When the surplus water in the exothermic composition reaches an appropriate amount, the hydrophilic groups in the composition components are hydrated by dipolar interactions or hydrogen bonds, and also have high structural properties around the hydrophobic groups. Is presumed to exist. As a result, it is estimated that sandy sand is formed, and moldability of the exothermic composition occurs. This is connected water which is a connected substance in some sense.

ここで、発熱組成物成形体は成形方式により形成されるが、該成形方式とは、抜き型を使った型通し成形法や鋳込み型を使った鋳込み成形法により、所望の形状に成形性発熱組成物を成形し、収納用ポケットを有しない、実質的に平面状の基材等に、その成形体を積層し、更に別の基材を被せ、シールして発熱体を製造する方法である。
型通し成形法とは、抜き型を便用し、長尺の基材の上に型の抜き形状の発熱組成物成形体を積層する成形機とそれを長尺の被覆材で覆い、目的とする区分け部分及び基材と被覆材の周辺部をシール(ヒートシールや圧着シールや熱圧着シール等〉できる回転式のシール器を用いて、そのシール器を介し、発熱組成物成形体の周辺部及び区分け部分の必要箇所をヒートシールし、封入処理する連続形成方法である。成形機としては抜き型をスラットにしたスラットコンベア式や中空ドラムにした中空ドラム式が一例として挙げられる。
また鋳込み成形法とは、凹部を有する鋳込み型への充填と基材への移設により、発熱組成物成形体を長尺基材上へ積層する成型法である。連続式の場合は、ドラム状回転体による門部への充填と基材への移設により、発熱組成物成形体を長尺基材上へ積層する成形機とそれを長尺の被覆材で覆い、目的とする区分け部分及び基材と被覆材の周辺部をシール(ヒートシールや圧着シールや熱圧着シール等)できる回転式のシール器を用いて、そのシール器を介し、発熱組成物成形体の縁部及び区分け部分の必要箇所をヒートシールし、封入処理する連統形成方法等である。
また、上記方法及びその他方法を便った本発明の発熱組成物使用の発熱体製造には、磁石を使用してもよい。磁石を利用すると、発熱組成物の袋体や型内への収容や、その成形体の形からの離脱が容易にでき、発熱紺成物成形体の成形や発熱体の製造がより容易になる。
特に、成形性のある発熱組成物と基材と被覆材から、成形方式により直接製造する一体型発熱体の製造が好ましい。
Here, the exothermic composition molded body is formed by a molding method, which is a moldable heat generation to a desired shape by a die-through molding method using a punching die or a casting molding method using a casting die. This is a method for producing a heating element by molding a composition, laminating the molded body on a substantially planar base material having no storage pocket, covering with another base material, and sealing. .
The mold-through molding method uses a punching die for convenience, and forms a punching-shaped exothermic composition molded body on a long base material and covers it with a long covering material. Use a rotary sealer that can seal the surrounding part and the peripheral part of the base material and coating material (heat seal, pressure seal, thermocompression seal, etc.), and the peripheral part of the exothermic composition molded body through the sealer As a forming machine, examples of the forming machine include a slat conveyor type using a slat as a cutting die and a hollow drum type using a hollow drum.
The casting molding method is a molding method in which a heat-generating composition molded body is laminated on a long base material by filling into a casting mold having a recess and transferring to a base material. In the case of the continuous type, a molding machine for laminating the exothermic composition molded body on a long base material and covering it with a long covering material by filling the gate part with a drum-shaped rotating body and transferring it to the base material , Using a rotary sealer that can seal the target section and the periphery of the base material and the covering material (heat seal, pressure seal, thermocompression seal, etc.), and the exothermic composition molded body through the seal device The continuous formation method etc. which heat seal the required location of the edge part and the division part, and enclose it.
In addition, a magnet may be used for producing a heating element using the exothermic composition of the present invention by using the above method and other methods. When a magnet is used, the exothermic composition can be easily housed in the bag or mold, and can be easily removed from the shape of the molded body, making it easier to mold the exothermic molded article and to produce the heating element. .
In particular, it is preferable to manufacture an integrated heating element that is directly manufactured from a moldable exothermic composition, a base material, and a coating material by a molding method.

本発明のプリーツシートの用途としては、鉄粉等を発熱源とした発熱組成物を利用した柔軟性に富んだプリーツ型発熱体の外に、例えば、生理用ナプキン、おむつ、失禁用パッド等の吸収性物品が挙げられ、該吸収性物品は、一般に表面カバーシートと裏面カバーシートとこれらの間に含まれる吸収体とからなる。これらのシート又は吸収体を構成するシート材は、波形に曲折させて波形シートとすることにより、空間を保持して液体の吸収や浸透および保持性を高め、液体分布を改善すると共に、漏れ特性を改善し、また着用の快適さや外観を向上させることが可能になる。   The pleated sheet of the present invention is used in addition to a flexible pleated heating element using a heat generating composition using iron powder or the like as a heat source, for example, sanitary napkins, diapers, incontinence pads, etc. An absorbent article is mentioned, and this absorbent article generally consists of a front cover sheet, a back cover sheet, and an absorber contained therebetween. The sheet material that constitutes these sheets or absorbent bodies is bent into a corrugated sheet to form a corrugated sheet, thereby maintaining the space and improving the liquid absorption, penetration and retention, improving the liquid distribution, and leakage characteristics. It is possible to improve the wear comfort and appearance.

以下、実施例等に基づいて本発明を更に詳細に説明するが、本発明はこれらにより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 etc., this invention is not limited by these.

(実施例1)
発熱組成物として、還元鉄粉(粒度300μm以下)100重量部、活性炭(粒度300μm以下)7.0重量部、木粉(粒度300μm以下)5.0重量部、吸水性ポリマー(粒度300μm以下)0.8重量部、消石灰0.2重量部、亜硫酸ナトリウム0.7重量部、11%食塩水を混合した易動水値10の発熱組成物を使用した。
幅5mm×長さ80mmの抜き穴が5mm間隔で5個ある抜き型を用いた型通し成形で、前記発熱組成物を、セパレータ付き厚さ30μmのアクリル系粘着剤層を設けたポリエチレンフィルム製の基材上に5個の区分発熱部を構成する発熱組成物成形体を設けた。
次に、その上にポリエチレン製多孔質フィルムに、目付量40g/mのナイロン製不織布を積層した通気性被覆材を、波形の被覆材に発熱組成物成形体を包み覆い、区分け部の相当領域の被覆材と基材をヒートシールした。
なお、各発熱組成物成形体の周縁部のシール部である区分け部は3mmのシール幅でヒートシールし、発熱体の外周辺部なる部位を8mmのシール幅でヒートシールした。
そして、長さ98mm×幅91mmのプリーツ型発熱体を得た。
尚、通気性被覆材の通気性はリッシー法の透湿度で、400g/m/24hrであった。また、剛軟度は発熱部の長辺方向(ストライプ方向と直交する方向)で、20mmであり、短辺方向(ストライプ方向)で、80mm以上であった。剛軟度はほぼ直角方向になる2方向における剛軟度比は4以上であった。このように、一方向は剛軟度が非常に高く、それにほぼ直角な方向の剛軟度が非常に低い場合は取り扱い性、使用感が非常に優れる。また、この発熱体は、巻くことができるので、コンパクトになり、収納にも便利である。尚、セパレータ付きの発熱体の場合は剛軟度の低いセパレータを使用すれば巻くことができる。
前記発熱体を非通気性収納袋(外袋)に密封収納し、24時間、室温で放置した。24時間後に外袋から取り出し、発熱試験を行ったが、3分で、温かく感じ、温かさが7時間続いた。同時に、曲面フィット性、巻回性、使い勝手について評価したがすべて優秀であった。
Example 1
As exothermic composition, reduced iron powder (particle size 300 μm or less) 100 parts by weight, activated carbon (particle size 300 μm or less) 7.0 parts by weight, wood powder (particle size 300 μm or less) 5.0 parts by weight, water-absorbing polymer (particle size 300 μm or less) An exothermic composition having a mobile water value of 10 in which 0.8 part by weight, 0.2 part by weight of slaked lime, 0.7 part by weight of sodium sulfite and 11% saline were mixed was used.
The heat generating composition was formed through a polyethylene film provided with an acrylic pressure-sensitive adhesive layer having a thickness of 30 μm with a separator, using a punching die having five punching holes having a width of 5 mm and a length of 80 mm at intervals of 5 mm. The exothermic composition molded object which comprises five division | segmentation exothermic parts was provided on the base material.
Next, a breathable coating material obtained by laminating a non-woven fabric made of nylon having a basis weight of 40 g / m 2 on a polyethylene porous film is covered with a corrugated coating material so as to cover the exothermic composition molded body. The area covering and substrate were heat sealed.
In addition, the division part which is a seal part of the peripheral part of each exothermic composition molded body was heat-sealed with a seal width of 3 mm, and the part which becomes the outer peripheral part of the heat generator was heat-sealed with a seal width of 8 mm.
A pleated heating element having a length of 98 mm and a width of 91 mm was obtained.
Incidentally, breathable breathable dressing with moisture permeability of Risshi method was 400g / m 2 / 24hr. The bending resistance was 20 mm in the long side direction (direction perpendicular to the stripe direction) of the heat generating portion, and was 80 mm or more in the short side direction (stripe direction). The bending resistance ratio was 4 or more in the two directions where the bending resistance was almost perpendicular. As described above, when the bending resistance in one direction is very high and the bending resistance in a direction substantially perpendicular to the one direction is very low, the handling property and the feeling of use are very excellent. Moreover, since this heat generating body can be wound, it becomes compact and is convenient for storage. In the case of a heating element with a separator, it can be wound by using a separator having low bending resistance.
The heating element was sealed and stored in a non-breathable storage bag (outer bag) and left at room temperature for 24 hours. After 24 hours, it was removed from the outer bag and subjected to an exothermic test. In 3 minutes, it felt warm and the warmth continued for 7 hours. At the same time, the curved surface fit, winding property and usability were evaluated, but all were excellent.

本発明の波形シート製造装置の一例を示す概略側面図である。It is a schematic side view which shows an example of the corrugated sheet manufacturing apparatus of this invention. 本発明の枠組み押し込みロールの一例を示す概略斜視図である。It is a schematic perspective view which shows an example of the frame pushing roll of this invention. (a)〜(c)本発明の押し込みロールの他の一例を示す概略正面図である。(A)-(c) It is a schematic front view which shows another example of the pushing roll of this invention. 本発明の受け側ロールの他の一例を示す概略断面図である。It is a schematic sectional drawing which shows another example of the receiving side roll of this invention. (a)〜(e)図1における押し込みロールと受け側ロールとシート部材とから波形シートが段階的に製造される一例を示す概略説明断面図である。(A)-(e) It is schematic explanatory sectional drawing which shows an example in which a corrugated sheet is manufactured in steps from the pushing roll in FIG. 1, a receiving side roll, and a sheet | seat member. 製造される波形シートの一例を示す斜視図である。It is a perspective view which shows an example of the corrugated sheet | seat manufactured. 本発明の波形シート製造装置と製造された波形シートの波形維持装置の一例を示す概略側面図である。It is a schematic side view which shows an example of the waveform maintenance apparatus of the corrugated sheet manufacturing apparatus of this invention and the manufactured corrugated sheet. 図7の波形シートの波形維持装置を示す概略側面図である。It is a schematic side view which shows the waveform maintenance apparatus of the waveform sheet | seat of FIG. 本発明の波形維持装置における波形シートと発熱組成物成形体と基材との関係の一例を示す概略説明断面図である。It is a schematic explanatory sectional drawing which shows an example of the relationship between the corrugated sheet | seat in the waveform maintaining apparatus of this invention, a heat-generating composition molded object, and a base material. 本発明の波形維持装置における波形シートと発熱組成物成形体と基材との関係の他の一例を示す概略説明断面図である。It is a schematic explanatory sectional drawing which shows another example of the relationship between the corrugated sheet | seat, the heat-generating composition molded object, and a base material in the waveform maintenance apparatus of this invention. (a)〜(d)製造される波形シートの他一例を示す断面図である。(A)-(d) It is sectional drawing which shows another example of the corrugated sheet | seat manufactured. (a)〜(d)本発明の波形シートと発熱組成物成形体と基材とから発熱組成物成形体包装体(プリーツ状発熱体)を製造する過程の段階的説明の一例を示す概略説明断面図である。(A)-(d) Schematic explanation showing an example of step-by-step explanation of the process of producing a heat-generating composition molded body package (pleated heat-generating body) from the corrugated sheet of the present invention, a heat-generating composition molded body, and a substrate. It is sectional drawing. 本発明の波形シートが発熱組成物成形体が積層された基材に被された状態の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of the state with which the corrugated sheet of this invention was covered by the base material with which the heat-generating composition molded object was laminated | stacked. 本発明の波形シート製造装置を用いた発熱組成物成形体包装体(プリーツ状発熱体)の製造装置の一例を示す概略側面図である。It is a schematic side view which shows an example of the manufacturing apparatus of the exothermic composition molded object package (pleated heating element) using the corrugated sheet manufacturing apparatus of this invention. (a)本発明の発熱組成物成形体包装体(プリーツ状発熱体)の一例を示す概略平面図である。(b)は同Z−Zの断面図である。(c)及び(d)は、他の発熱体の例を示す断面図。(A) It is a schematic plan view which shows an example of the exothermic composition molded object package (pleated heating element) of this invention. (B) is sectional drawing of the same ZZ. (C) And (d) is sectional drawing which shows the example of another heat generating body. (a)本発明の発熱組成物成形体包装体(プリーツ状発熱体)の他の一例を示す概略平面図である。(b)は同Y−Yの断面図である。(A) It is a schematic plan view which shows another example of the exothermic composition molded object package (pleated heating element) of this invention. (B) is sectional drawing of the same YY. (a)本発明の波形シート製造装置の他の一例を示す概略斜視図である。(b)は同X−Xの断面図である。(A) It is a schematic perspective view which shows another example of the corrugated sheet manufacturing apparatus of this invention. (B) is sectional drawing of the same XX. (a)(b)は図17の枠組み押し込みロールと枠組み受け側ロールとの関係を示す概略平面図である。(A) and (b) are the schematic plan views which show the relationship between the frame pushing roll of FIG. 17, and a frame receiving side roll.

符号の説明Explanation of symbols

1波形シートの製造装置
2基台
3溝部
7凸部ロール(押し込み部材)
8回転軸
9回転軸
10回転部
12駆動源
21受け側ロール(受け側部材)
22凹部(他の溝部)
25シールロール
26ヒートシールロール
27密着部
28非着部
29被覆材(シート部材)
30基材
33発熱組成物成形体
34発熱組成物成形体包装体(プリーツ型発熱体)
35シール部
36通気調整材
37空間
42波形形状維持装置
43発熱組成物成形体包装体製造装置(発熱体製造装置)
44発熱組成物成形体製造装置
45発熱組成物供給装置
47ロール
48無端状ベルト
49弛み防止具
50支持板
51カットロール
52区分発熱部
53粘着剤層
54通気性粘着層
55セパレータ
57区分け部
1 corrugated sheet manufacturing equipment 2 base 3 groove 7 convex roll (pushing member)
8 rotating shaft 9 rotating shaft 10 rotating portion 12 drive source 21 receiving side roll (receiving side member)
22 recesses (other grooves)
25 seal roll 26 heat seal roll 27 adhesion part 28 non-attachment part 29 covering material (sheet member)
30 base material 33 exothermic composition molded body 34 exothermic composition molded body package (pleated heating element)
35 Sealing part 36 Ventilation regulating material 37 Space 42 Waveform shape maintaining device 43 Exothermic composition molded body manufacturing apparatus (heating element manufacturing apparatus)
44 exothermic composition molded body manufacturing apparatus 45 exothermic composition supply apparatus 47 roll 48 endless belt 49 slack prevention tool 50 support plate 51 cut roll 52 section heating section 53 adhesive layer 54 breathable adhesive layer 55 separator 57 section section

Claims (5)

シート部材を凹凸状の部材を使用して波形に形成する方法であって、前記シート部材の中央側から外側に向かって漸次波付けを行うことを特徴とする波形シートの製造方法。   A method for forming a corrugated sheet, wherein the corrugated sheet is formed into a corrugated shape using a concavo-convex member, wherein the corrugated sheet is gradually corrugated from the center side toward the outer side. 請求項1に記載の前記波形シートを被覆材として使用し、基材上に発熱組成物成形体をスライプ状に配置し、前記発熱組成物成形体を前記被覆材により被覆し、前記発熱組成物成形体の周縁部をシールすることを特徴とする発熱体の製造方法。   The corrugated sheet according to claim 1 is used as a covering material, a heat-generating composition molded body is disposed on a base material in a stripe shape, the heat-generating composition molded body is covered with the covering material, and the heat-generating composition is formed. A method for producing a heating element, comprising sealing a peripheral portion of a molded body. シート部材を挿入して波形に曲折してなる波形シートを製造する装置であって、隣接して複数の溝部が設けられた基台と、前記溝部の延出方向に回転できるように支持された押し込み部材と、前記溝部に対向する他の溝部を備え、前記他の溝部内において、前記押し込み部材は回転可能な状態で収容されるように構成された受け側部材とを備え、隣接する前記押し込み部材のうち中央側の前記押し込み部材を、外側の前記押し込み部材よりも前記シート部材の挿入側に配置するとともに、前記各押し込み部材を中央側から外側に向かって漸次排出側に向かってずらして配置されることを特徴とする波形シートの製造装置。   An apparatus for manufacturing a corrugated sheet that is bent into a corrugated shape by inserting a sheet member, and is supported so as to be rotatable in the extending direction of the groove portion, and a base provided with a plurality of adjacent groove portions. A pressing member, and another groove portion facing the groove portion, the receiving member configured to be housed in a rotatable state in the other groove portion, and the adjacent pressing member Among the members, the pushing member on the center side is arranged on the insertion side of the sheet member relative to the pushing member on the outside, and the pushing members are gradually shifted from the center side toward the outside toward the discharge side. An apparatus for producing a corrugated sheet. 前記押し込み部材を、回転ロールにより構成し、前記回転ロールを前記溝部内において、前記溝部の延出方向に隣接して配置し、中央側の前記溝部内から外側の前記溝部内の回転ロールの数を、前記外側に向かって漸次少なくしたことを特徴とする請求項3に記載の波形シートの製造装置。   The pushing member is constituted by a rotating roll, and the rotating roll is disposed in the groove portion adjacent to the extending direction of the groove portion, and the number of rotating rolls in the groove portion outside from the groove portion on the center side. The corrugated sheet manufacturing apparatus according to claim 3, wherein the corrugated sheet is gradually reduced toward the outside. 前記波形シートの底面に基材シートを接合する接合手段を備えることを特徴とする請求項4に記載の波形シートの製造装置。   The corrugated sheet manufacturing apparatus according to claim 4, further comprising a joining unit that joins a base sheet to a bottom surface of the corrugated sheet.
JP2006006813A 2006-01-13 2006-01-13 Method and apparatus for producing corrugated sheet, method for producing heating element, and heating element Withdrawn JP2009083101A (en)

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JP2006006813A JP2009083101A (en) 2006-01-13 2006-01-13 Method and apparatus for producing corrugated sheet, method for producing heating element, and heating element
PCT/JP2007/050440 WO2007081013A1 (en) 2006-01-13 2007-01-15 Corrugated sheet manufacturing method and apparatus, heating element manufacturing method and heating element

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JPS62108917U (en) * 1985-08-17 1987-07-11
ES2011144A6 (en) * 1988-10-10 1989-12-16 Torres Martinez M Longitudinal corrugating system for laminar strips or webs.
JP2001238906A (en) * 1999-12-24 2001-09-04 Lion Corp Heating element composition, heating element and method for manufacturing the same
JP2002144455A (en) * 2000-11-17 2002-05-21 Kao Corp Apparatus for producing corrugated sheet

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