EP0408452A1 - Assembling a block of PVC sheets by welding inside a cover which is not made of PVC - Google Patents

Assembling a block of PVC sheets by welding inside a cover which is not made of PVC Download PDF

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Publication number
EP0408452A1
EP0408452A1 EP90402000A EP90402000A EP0408452A1 EP 0408452 A1 EP0408452 A1 EP 0408452A1 EP 90402000 A EP90402000 A EP 90402000A EP 90402000 A EP90402000 A EP 90402000A EP 0408452 A1 EP0408452 A1 EP 0408452A1
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EP
European Patent Office
Prior art keywords
cover
pvc
sheets
binding
high frequency
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Granted
Application number
EP90402000A
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German (de)
French (fr)
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EP0408452B1 (en
Inventor
Christophe Gandon
Gino Esnault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PANODIA SA
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PANODIA SA
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Publication date
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Publication of EP0408452A1 publication Critical patent/EP0408452A1/en
Application granted granted Critical
Publication of EP0408452B1 publication Critical patent/EP0408452B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C11/00—Casing-in
    • B42C11/06—Machines or equipment for casing-in by welding plastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C9/00—Applying glue or adhesive peculiar to bookbinding
    • B42C9/0093—Applying glue or adhesive peculiar to bookbinding by fusing, welding sheets together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D1/00—Books or other bound products
    • B42D1/08—Albums

Definitions

  • the invention relates to a high frequency binding process for a work consisting of PVC sheets and a cover whose exterior is not made of PVC, as well as the work obtained by implementing said process.
  • the invention relates more particularly to a method of high frequency binding of a work in which the PVC sheets are pockets such as a photo album or a document protector.
  • the conventional processes used to link works made of plastic sheets such as photo albums or document protectors are thermal welding, ultrasonic welding and high frequency welding.
  • Thermal welding has a number of drawbacks, the main one being the thickness limitation of the welded material.
  • the weld obtained may have an appearance which does not favor the marketing of the product (burr, overflow ).
  • Ultrasonic welding has the disadvantage of being able to be used only in the context of the joining of materials of the same kind. Ultrasonic welding can also have a poor quality finish, particularly when it is used to make a weld that is too thick.
  • the most suitable technique that best meets the quality requirements of the binding produced is high frequency welding.
  • This technique consists in passing a high frequency electric current through the plastic, thus allowing the fusion of this plastic material.
  • This technique can therefore only be used in the context of the welding of sheets made of a relatively conductive plastic material.
  • the high frequency technique cannot be used with many materials such as polyethylene, polypropylene, polyester and in general, all plastics which do not have enough mobile electrons on their chain to allow current to flow through. .
  • French Patent No. 2,616,380 proposes a method of manufacturing a fixed pocket binding using a cover and sheets made of the same plastic material.
  • the process is simple but the connected works obtained have several drawbacks: the fold line on which the welding is carried out between the sheets and the cover has a rough and unsightly appearance, the use of plastics to constitute the cover does not allow the decoration of it only according to a relatively limited range of processes.
  • the invention provides a method of high frequency binding of a work consisting of PVC sheets and a cover whose outside is not PVC as well as a work obtained by said process.
  • the method is characterized in that it consists of gluing a PVC sheet inside the cover, placing the stacked sheets of PVC on the cover and welding the sheets and cover at high frequency fold line by applying high-frequency welding means on either side of this fold line.
  • the welding means used are the conventional means used in the field of bookbinding and consisting of two electrodes.
  • the binding process according to the invention is carried out when the PVC sheets are arranged flat on the cover.
  • the outside of the cover is covered by paper, leather, bonded leather or fabric.
  • the PVC sheets can be in the form of pockets closed on three on their side, pockets which, during the implementation of the method and more particularly of the welding step, will be divided into two independent compartments allowing the protection of documents such as photographs.
  • the cover consists of a paper covering on the outside of two plates of rigid or semi-rigid material interrupted at the fold line and inside a sheet of PVC. This makes it possible to stiffen the cover despite the fact that the PVC sheet placed inside said cover can perform this function alone.
  • the thickness of the material constituting the exterior of the cover at the fold line is less than 3 millimeters.
  • the invention also relates to a work consisting of PVC sheets and a cover obtained by the high-frequency binding process described above, that is to say having a cover whose exterior is made of a non-weldable material. by high-frequency and whose interior consists of a PVC sheet.
  • the outside of the cover of the book according to the invention is made of paper, leather, bonded leather or fabric.
  • the cover 2 is produced by placing two cardboard dishes separated from each other at the level of the space to be joined on a sheet of glossy printed paper 3 of slightly larger size by gluing the edge of this sheet of paper onto the inner face of the cardboard dishes then by gluing on the inside 4 of the cover a PVC sheet 5.
  • a stack of PVC sheets 1 constituting pouches is placed facing the cover and flat on it.
  • the high-frequency welding means 6 are arranged on either side along the fold line 7 so as to allow the passage of the high-frequency current allowing the melting of the plastic material and the constitution of the binding. When fusing PVC, the pockets tend to straighten.
  • the resulting work has a high quality binding with a PVC interior and a printed paper cover.

Abstract

The invention relates to a process for the high-frequency binding of a product consisting of PVC sheets and of a cover, the outside of which is not made of PVC, and to the product obtained by carrying out the said process. The process involves bonding a PVC sheet (5) inside the cover, arranging the stacked PVC sheets (1) on the cover (2) and welding the sheets (1) and cover by high frequency in the region of a folding line (7) by applying high-frequency welding means (6) on either side of this folding line (7). The invention is especially suitable for producing photograph albums or document holders. <IMAGE>

Description

L'invention concerne un procédé de reliure par haute fréquence d'un ouvrage constitué de feuillets en PVC et d'une couverture dont l'extérieur n'est pas en PVC ainsi que l'ouvrage obtenu par mise en oeuvre dudit procédé.The invention relates to a high frequency binding process for a work consisting of PVC sheets and a cover whose exterior is not made of PVC, as well as the work obtained by implementing said process.

L'invention concerne plus particulièrement un procédé de reliure par haute fréquence d'un ouvrage dont les feuillets en PVC sont des pochettes tel qu'un album-photos ou un protège documents.The invention relates more particularly to a method of high frequency binding of a work in which the PVC sheets are pockets such as a photo album or a document protector.

Les procédés classiques utilisés pour relier des ouvrages constitués de feuillets en matière plastique tels que les album-photos ou les protèges-documents sont la soudure thermique, la soudure en ultrason et la soudure haute fréquence.The conventional processes used to link works made of plastic sheets such as photo albums or document protectors are thermal welding, ultrasonic welding and high frequency welding.

La soudure thermique présente un certain nombre d'inconvénients dont le principal est la limitation en épaisseur du matériau soudé. De plus, la soudure obtenue peut présenter un aspect ne favorisant pas la commercialisation du produit (bavure, débordement...). La soudure en ultrason présente l'inconvénient de ne pouvoir être utilisée que dans le cadre de la solidarisation de matériaux de même nature. La soudure en ultrason peut également présenter une finition de mauvaise qualité, particulièrement lorsqu'elle est utilisée pour réaliser une soudure de trop grande épaisseur.Thermal welding has a number of drawbacks, the main one being the thickness limitation of the welded material. In addition, the weld obtained may have an appearance which does not favor the marketing of the product (burr, overflow ...). Ultrasonic welding has the disadvantage of being able to be used only in the context of the joining of materials of the same kind. Ultrasonic welding can also have a poor quality finish, particularly when it is used to make a weld that is too thick.

La technique la plus adaptée et répondant le mieux aux impératifs de qualité de la reliure réalisée est la soudure par haute fréquence. Cette technique consiste à faire passer dans la matière plastique un courant électrique de haute fréquence, permettant ainsi la fusion de ce matériau plastique. Cette technique ne peut donc être utilisée que dans le cadre de la réalisation de soudure de feuilles constituées par un matériau plastique relativement conducteur. Par contre, la technique de haute fréquence est inutilisable avec de nombreux matériaux tel que le polyéthylène, le polypropylène, le polyester et de manière générale, toutes les matières plastiques ne présentant pas sur leur chaîne suffisamment d'électrons mobiles pour permettre le passage du courant.The most suitable technique that best meets the quality requirements of the binding produced is high frequency welding. This technique consists in passing a high frequency electric current through the plastic, thus allowing the fusion of this plastic material. This technique can therefore only be used in the context of the welding of sheets made of a relatively conductive plastic material. On the other hand, the high frequency technique cannot be used with many materials such as polyethylene, polypropylene, polyester and in general, all plastics which do not have enough mobile electrons on their chain to allow current to flow through. .

La soudure haute fréquence présente cependant l'inconvénient de ne pouvoir être utilisée que dans le cadre de l'assemblage de matériaux de même nature.However, high frequency welding has the disadvantage that it can only be used in the context the assembly of materials of the same kind.

Dans le cadre de la réalisation d'ouvrages constitués de feuillets en matière plastique et d'une couverture, tel que par exemple un album-photos, l'utilisation d'un procédé de reliure par haute fréquence était subordonnée à l'emploi d'un matériau unique pour, d'une part, la couverture et d'autre part, les feuillets. Ainsi le brevet français n° 2 616 380 propose un procédé de fabrication d'une reliure à pochette fixe mettant en oeuvre une couverture et des feuillets constitués de la même matière plastique. Le procédé est simple mais les ouvrages reliés obtenus présentent plusieurs inconvénients : la ligne de pliure sur laquelle est effectuée la soudure entre les feuillets et la couverture présente un aspect rugueux et peu esthétique, l'utilisation de matières plastiques pour constituer la couverture ne permet la décoration de celle-ci que selon une gamme de procédés relativement restreinte.In the context of the production of works made of plastic sheets and a cover, such as for example a photo album, the use of a high frequency binding process was subject to the use of a unique material for, on the one hand, the cover and on the other hand, the sheets. Thus, French Patent No. 2,616,380 proposes a method of manufacturing a fixed pocket binding using a cover and sheets made of the same plastic material. The process is simple but the connected works obtained have several drawbacks: the fold line on which the welding is carried out between the sheets and the cover has a rough and unsightly appearance, the use of plastics to constitute the cover does not allow the decoration of it only according to a relatively limited range of processes.

Compte tenu de l'impact du facteur esthétique décoratif sur le consommateur, les ouvrages possédant une couverture en papier, et permettant toutes les variantes de décoration ont été privilégiés. Cependant, dans le cadre d'une couverture papier, l'état de la technique ne propose aucun procédé permettant d'utiliser la technique de soudure par haute fréquence. Des techniques beaucoup plus coûteuses telle que la reliure par spirale sont couramment utilisées pour obtenir ce type de produit.Given the impact of the decorative aesthetic factor on the consumer, works with a paper cover, and allowing all the variants of decoration were preferred. However, in the context of a paper cover, the state of the art does not propose any method making it possible to use the high frequency welding technique. Much more expensive techniques such as spiral binding are commonly used to obtain this type of product.

L'invention propose un procédé de reliure par haute fréquence d'un ouvrage constitué de feuillets en PVC et d'une couverture dont l'extérieur n'est pas en PVC ainsi qu'un ouvrage obtenu selon ledit procédé. Le procédé est caractérisé en ce qu'il consiste à coller à l'intérieur de la couverture une feuille en PVC, à disposer les feuillets empilés en PVC sur la couverture et à souder par haute fréquence les feuillets et la couverture au niveau d'une ligne de pliure en appliquant des moyens de soudure haute-­fréquence de part et d'autre de cette ligne de pliure.The invention provides a method of high frequency binding of a work consisting of PVC sheets and a cover whose outside is not PVC as well as a work obtained by said process. The method is characterized in that it consists of gluing a PVC sheet inside the cover, placing the stacked sheets of PVC on the cover and welding the sheets and cover at high frequency fold line by applying high-frequency welding means on either side of this fold line.

Les moyens de soudure mis en oeuvre sont les moyens classiques utilisés dans le domaine de la reliure et constitués de deux électrodes.The welding means used are the conventional means used in the field of bookbinding and consisting of two electrodes.

Malgré la présence entre les deux électrodes d'un matériau non soudable par haute-fréquence, la fusion entre les éléments en PVC a lieu.Despite the presence between the two electrodes of a material which cannot be welded by high frequency, the fusion between the PVC elements takes place.

Selon une variante préférentielle le procédé de reliure selon l'invention est réalisé lorsque les feuillets en PVC sont disposés à plat sur la couverture.According to a preferred variant, the binding process according to the invention is carried out when the PVC sheets are arranged flat on the cover.

Egalement préférentiellement, l'extérieur de la couverture est couvert par du papier, du cuir, du cuir reconstitué ou du tissu.Also preferably, the outside of the cover is covered by paper, leather, bonded leather or fabric.

Selon une variante intéressante de l'invention, les feuillets en PVC peuvent se présenter sous la forme de pochettes fermées sur trois de leur côté, pochettes qui, lors de la mise en oeuvre du procédé et plus particulièrement de l'étape de soudure, seront divisées en deux compartiments indépendants permettant la protection de documents telles que des photographies.According to an advantageous variant of the invention, the PVC sheets can be in the form of pockets closed on three on their side, pockets which, during the implementation of the method and more particularly of the welding step, will be divided into two independent compartments allowing the protection of documents such as photographs.

Egalement préférentiellement la couverture est constituée d'un revêtement en papier à l'extérieur de deux plats en matériau rigide ou semi-rigide s'interrompant au niveau de la ligne de pliure et à l'intérieur d'une feuille de PVC. Ceci permet de rigidifier la couverture malgré le fait que la feuille de PVC disposée à l'intérieur de ladite couverture puisse assurer seule cette fonction.Also preferably, the cover consists of a paper covering on the outside of two plates of rigid or semi-rigid material interrupted at the fold line and inside a sheet of PVC. This makes it possible to stiffen the cover despite the fact that the PVC sheet placed inside said cover can perform this function alone.

Avantageusement, l'épaisseur du matériau constituant l'extérieur de la couverture au niveau de la ligne de pliure est inférieure à 3 millimètres.Advantageously, the thickness of the material constituting the exterior of the cover at the fold line is less than 3 millimeters.

L'invention concerne également un ouvrage constitué de feuillets en PVC et d'une couverture obtenue par le procédé de reliure haute-fréquence précédement décrit, c'est-à-dire possédant une couverture dont l'extérieur est constitué par un matériau non soudable par haute-fréquence et dont l'intérieur est constitué par une feuille de PVC.The invention also relates to a work consisting of PVC sheets and a cover obtained by the high-frequency binding process described above, that is to say having a cover whose exterior is made of a non-weldable material. by high-frequency and whose interior consists of a PVC sheet.

Préférentiellement, l'extérieur de la couverture de l'ouvrage selon l'invention est en papier, en cuir, en cuir reconstitué ou en tissu.Preferably, the outside of the cover of the book according to the invention is made of paper, leather, bonded leather or fabric.

L'invention ainsi que ses avantages sont plus précisément décrits grâce à l'exemple de réalisation donné ci-après en référence à la figure annexée représentant une vue en perspective d'un ouvrage constitué de pochettes en PVC et d'une couverture 2 dont l'extérieur n'est pas en PVC pouvant servir d'album-photos.The invention and its advantages are more precisely described by means of the embodiment given below with reference to the appended figure representing a perspective view of a work consisting of PVC sleeves and a cover 2, the outside of which is not made of PVC and can be used as a photo album.

La couverture 2 est réalisée en disposant deux plats en carton séparés l'un de l'autre au niveau de l'espace à relier sur une feuille de papier glacé imprimée 3 de dimension légèrement plus grande en collant le rebord de cette feuille de papier sur la face interne des plats en carton puis en collant sur l'intérieur 4 de la couverture une feuille en PVC 5. Une pile de feuillets en PVC 1 constituant des pochettes est disposée en regard de la couverture et à plat sur celle-­ci. Les moyens de soudure 6 haute-fréquence sont disposés de part et d'autre le long de la ligne de pliure 7 de façon à permettre le passage du courant haute-fréquence permettant la fusion du matériau plastique et la constitution de la reliure. Lors de la fusion du PVC, les pochettes ont tendance à se redresser. L'ouvrage obtenu présente une reliure de haute qualité avec un intérieur PVC et une couverture papier imprimé.The cover 2 is produced by placing two cardboard dishes separated from each other at the level of the space to be joined on a sheet of glossy printed paper 3 of slightly larger size by gluing the edge of this sheet of paper onto the inner face of the cardboard dishes then by gluing on the inside 4 of the cover a PVC sheet 5. A stack of PVC sheets 1 constituting pouches is placed facing the cover and flat on it. The high-frequency welding means 6 are arranged on either side along the fold line 7 so as to allow the passage of the high-frequency current allowing the melting of the plastic material and the constitution of the binding. When fusing PVC, the pockets tend to straighten. The resulting work has a high quality binding with a PVC interior and a printed paper cover.

Claims (8)

1) Procédé de reliure par haute fréquence d'un ouvrage constitué de feuillets en PVC (1) et d'une couverture (2) dont l'intérieur n'est pas en PVC, consistant à coller à l'intérieur (4) de la couverture (2) une feuille (5) en PVC, à disposer les feuillets empilés en PVC (1) sur la couverture (2) et à souder par haute fréquence les feuillets (1) et la couverture au niveau d'une ligne de plipure (7) en appliquant des moyens de soudure haute-fréquence (6) de part et d'autre de cette ligne de pliure (7).1) A method of high frequency binding of a work consisting of PVC sheets (1) and a cover (2) the interior of which is not PVC, consisting of gluing the interior (4) of the cover (2) a sheet (5) of PVC, placing the stacked sheets of PVC (1) on the cover (2) and high-frequency welding the sheets (1) and the cover at a line of plipure (7) by applying high-frequency welding means (6) on either side of this fold line (7). 2) Procédé de reliure selon la revendication précédente caractérisé en que la soudure est effectuée lorsque les feuillets (1) en PVC sont disposés à plat sur la couverture.2) A binding method according to the preceding claim characterized in that the welding is carried out when the sheets (1) in PVC are arranged flat on the cover. 3) Procédé de reliure par haute fréquence selon la revendication 1 caractérisé en ce que le matériau (3) constituant l'extérieur de la couverture (2) est en papier, en cuir, en cuir reconstitué ou en tissu.3) A method of binding by high frequency according to claim 1 characterized in that the material (3) constituting the outside of the cover (2) is paper, leather, bonded leather or fabric. 4) Procédé de reliure par haute fréquence selon l'une des revendications précédentes caractérisé en ce que les feuillets (1) sont constitués par des pochettes.4) Method of binding by high frequency according to one of the preceding claims characterized in that the sheets (1) are constituted by pockets. 5) Procédé de reliure par haute fréquence selon l'une des revendications précédentes caractérisé en ce que la couverture (2) est constituée d'un revêtement extérieur en papier, de deux plats en matériau rigide ou semi-rigide s'interrompant au niveau de la ligne de pliure (7) et à l'intérieur d'une feuille de PVC (5).5) A method of binding by high frequency according to one of the preceding claims characterized in that the cover (2) consists of an outer coating of paper, two plates of rigid or semi-rigid material interrupted at the fold line (7) and inside a PVC sheet (5). 6) Procédé de reliure par haute fréquence selon l'une des revendications précédentes caractérisé en ce que l'épaisseur du matériau (3) constituant l'extérieur de la couverture (2) au niveau de la ligne de pliure est inférieure à 3 millimètres.6) A method of binding by high frequency according to one of the preceding claims characterized in that the thickness of the material (3) constituting the outside of the cover (2) at the fold line is less than 3 millimeters. 7) Ouvrage constitué de feuillets en PVC (1) et d'une couverture (2) obtenu par le procédé de reliure haute-­fréquence selon l'une des revendications précédentes caractérisé en ce que l'extérieur de la couverture (2) est constitué par un matériau non soudable par haute fréquence et en ce que l'intérieur (4) de la couverture est constitué par une feuille de PVC (5).7) Work consisting of PVC sheets (1) and a cover (2) obtained by the high-frequency binding process according to one of the preceding claims characterized in that the outside of the cover (2) is constituted by a material which cannot be welded by high frequency and in that the interior (4) of the cover consists of a PVC sheet (5). 8) Ouvrage selon la revendication 7 caractérisé en ce que le matériau constituant l'extérieur de la couverture est en papier, en cuir, en cuir reconstitué ou en tissu, et en ce que les feuillets (1) sont des pochettes.8) A book according to claim 7 characterized in that the material constituting the outside of the cover is paper, leather, bonded leather or fabric, and in that the sheets (1) are pockets.
EP19900402000 1989-07-11 1990-07-11 Assembling a block of PVC sheets by welding inside a cover which is not made of PVC Expired - Lifetime EP0408452B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8909509 1989-07-11
FR8909509A FR2649644B1 (en) 1989-07-13 1989-07-13 ASSEMBLY OF A BLOCK OF PVC SHEETS BY WELDING WITHIN A COVER WHOSE OUTSIDE IS NOT A PVC SHEET

Publications (2)

Publication Number Publication Date
EP0408452A1 true EP0408452A1 (en) 1991-01-16
EP0408452B1 EP0408452B1 (en) 1994-10-19

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EP19900402000 Expired - Lifetime EP0408452B1 (en) 1989-07-11 1990-07-11 Assembling a block of PVC sheets by welding inside a cover which is not made of PVC

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EP (1) EP0408452B1 (en)
DE (1) DE69013421T2 (en)
FR (1) FR2649644B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106696504A (en) * 2017-03-10 2017-05-24 李琳波 Book wrapping film and machining technique thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647803A (en) * 1948-02-19 1950-12-20 Louis Shenfield Improvements in or relating to printed books
FR1015952A (en) * 1950-04-04 1952-10-29 Imprimerie Et Librairie Berger Brochure or bookbinding process, and products obtained by this process
DE1486745A1 (en) * 1966-01-13 1969-07-17 Alfred Hansper Method and device for stapling paper and / or cardboard
FR2428514A1 (en) * 1978-06-13 1980-01-11 Doret Sa Ets PVC interlayers for HF-welding of polyolefin or polyester films - esp. for assembling groups of filing pockets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647803A (en) * 1948-02-19 1950-12-20 Louis Shenfield Improvements in or relating to printed books
FR1015952A (en) * 1950-04-04 1952-10-29 Imprimerie Et Librairie Berger Brochure or bookbinding process, and products obtained by this process
DE1486745A1 (en) * 1966-01-13 1969-07-17 Alfred Hansper Method and device for stapling paper and / or cardboard
FR2428514A1 (en) * 1978-06-13 1980-01-11 Doret Sa Ets PVC interlayers for HF-welding of polyolefin or polyester films - esp. for assembling groups of filing pockets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106696504A (en) * 2017-03-10 2017-05-24 李琳波 Book wrapping film and machining technique thereof

Also Published As

Publication number Publication date
FR2649644A1 (en) 1991-01-18
EP0408452B1 (en) 1994-10-19
DE69013421T2 (en) 1995-05-18
DE69013421D1 (en) 1994-11-24
FR2649644B1 (en) 1992-06-05

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