EP1283300B1 - Procédé et dispositif de déacidification de livres - Google Patents

Procédé et dispositif de déacidification de livres Download PDF

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Publication number
EP1283300B1
EP1283300B1 EP20020012965 EP02012965A EP1283300B1 EP 1283300 B1 EP1283300 B1 EP 1283300B1 EP 20020012965 EP20020012965 EP 20020012965 EP 02012965 A EP02012965 A EP 02012965A EP 1283300 B1 EP1283300 B1 EP 1283300B1
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EP
European Patent Office
Prior art keywords
treatment vessel
book
air mixture
air
carriage
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20020012965
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German (de)
English (en)
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EP1283300A3 (fr
EP1283300A2 (fr
Inventor
Peter Zitzmann
Norbert Leisch
Armin Kratzert
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Individual
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Individual
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Publication of EP1283300A3 publication Critical patent/EP1283300A3/fr
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/18—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00 of old paper as in books, documents, e.g. restoring

Definitions

  • the invention relates to a method for deacidifying books, in which a paper-containing book is placed in a processing vessel, in which then the paper sheets are first pretreated, then treated with the paper sheets with a water / medium mixture and with an active ingredient / air Be blown mixture, in which then the paper sides are aftertreated, and in which in the treatment vessel with respect to a normal pressure of 1,000 mbar once a negative pressure and another times an overpressure is set.
  • the invention also relates to a device for deacidifying books according to this method, in which a suctioning vacuum pump is connected to the treatment vessel, a device for supplying water / air mixture through openings in the treatment vessel is provided, a compressor means for active ingredient / air Mixture works via nozzles in the processing vessel and a control unit is provided.
  • books here not only books in the true sense of the word understood, but also files, a plurality of notebooks or a loose-leaf collection. So it's about book-like structures that have a variety of sheets of paper that are folded into a sheet pile.
  • the water medium / air mixture is a water vapor / air mixture, wherein the water vapor, when it enters the treatment vessel by suction, is at least 105 ° C hot.
  • the paper sheets are first blown under reduced pressure with the active ingredient / air mixture and then brought into contact with the aspirated water vapor / air mixture at reduced pressure. This is followed by the aftertreatment.
  • the bringing into contact with the hot water medium steam is supposed to be the introduction of the water medium accelerate as well as the drug in the voids paper paper sheets and speed up the process of deacidification and accelerated run.
  • an apparatus and method for mass deacidification and elimination of free acidity of cellulosic materials are known wherein the cellulosic materials to be treated are placed in an autoclave with pressure and temperature control.
  • the process involves drying or dehydration of the cellulosic material in the autoclave.
  • a dosage of a solvent from a solvent bottle and an active deacidification product is carried out to recover a solution of the active deacidification product.
  • the cellulosic material is soaked in contact with the solution of active deacidification products in the autoclave.
  • An object of the invention is therefore to provide a method of the type mentioned, in which the processes occurring due to the active substance and the water medium on or in the paper sheets are accelerated and caused by high temperatures damage the paper sheets are avoided.
  • the method according to the invention solving this problem, is characterized characterized in that the paper sheets are first blown under reduced pressure with a water droplet / air mixture, then at overpressure with the active ingredient / air mixture and then at overpressure again with a water droplet / air mixture.
  • the water droplets of the water droplet / air mixture are at a maximum of 50 ° C warm when entering the treatment vessel.
  • the temperature of the water droplets when the water droplet / air mixture enters the processing vessel is well below 100 ° C, caused by high temperatures damage the paper sheets are avoided. Since the water is applied in drops form on the paper sheets, there is an accelerated penetration of water into the paper. Since application of the active ingredient is preceded by application of water droplets and application of active ingredient is followed by application of water droplets, the processes occurring due to the active ingredient and water droplets on the paper sheets are the entry of the active ingredient into the paper, initiation of deacidification and drainage of deacidification accelerates. Since the active ingredient is applied to the moistened paper, it acts faster. Due to the pressure ratios set in the method according to the invention, the penetration of water and active ingredient is accelerated and improved in terms of quantity and penetration depth.
  • the overpressure is a pressure markedly above 1,000 mbar and the negative pressure is a pressure markedly below 1,000 mbar.
  • the water droplets of the water droplet / air mixture are made as small as possible. It is particularly expedient and advantageous if the drops of water are the particles of finely atomized water.
  • the water drop / air mixture is therefore an aerosol, i. H. a fine distribution of liquid water in the air.
  • the mixture is a kind of mist that is blown.
  • the water droplets of the water droplet / air mixture are at most 40 ° C. warm when they enter the treatment vessel.
  • the inlet temperature of a maximum of 50 ° C or even a maximum of 40 ° C is sufficient to bring the water drops at such a temperature and in the paper that the active substance on and in the paper sufficiently unfold the desired effects.
  • the warm water of the drops of water can be better adapted to the temperature of the paper.
  • a particularly advantageous and advantageous embodiment of the invention is when the re-blowing with the water droplet / air mixture and the blowing with the active ingredient / air mixture in the treatment vessel an overpressure of at least 1,500 mbar, preferably at least 2,000 mbar is assigned.
  • This overpressure drives the water and the active ingredient into the paper.
  • the overpressure thus accelerates the introduction of the water and the active substance into the cavities paper of the paper sheets, after which the process of deacidification accelerates and accelerates.
  • the overpressure is adjusted after the first blowing with water droplets / air mixture.
  • the pressure is z. B. more than 2,500 mbar. In general, the overpressure is still present after the second blowing with water droplets / air mixture.
  • the pretreatment preceding the first blowing with water droplets / air mixture comprises generating a negative pressure in the treatment vessel and if the negative pressure is set lower than 250 mbar. Namely, the deeper the negative pressure is set in the pretreatment, the better the water drops and the active ingredient can then act on the paper. It has the paper on a cavities forming structure and by the negative pressure, the cavities of the paper are made receptive to the active ingredient and the water of the water droplets. It is not only superficially cleaned, but also deep down.
  • the pre-treatment preceding the first blowing with water droplets / air mixture comprises generating a negative pressure in the treatment vessel and if adjusting the negative pressure subsequent to the introduction of the book into the treatment vessel and before blowing it with cleaning air and / or prior to aspiration of polluted air from the treatment vessel.
  • This initial negative pressure results in an improved manner in that the cavities of the paper is opened and a dirt layer located on the paper surface is broken. The nature of the paper is thus prepared for the action of the active ingredient and the water drops improved. This succeeds especially with the increased negative pressure from lower than 250 mbar. It is not only superficially cleaned, but also deep down.
  • a particularly expedient and advantageous embodiment of the invention is therefore when the book is subsequently brought to the aftertreatment in a climatic chamber in which it remains at controlled temperature and humidity conditions for a predetermined maturation time.
  • the book has after the treatment boiler opportunity for further and complete deacidification at suitable temperature and humidity conditions. This is possible because so much drug is supplied to the paper that even after the treatment vessel is still free drug in the paper, which causes a further deacidification. Yellowed pages become white again.
  • the climatic chamber After removing the book from the treatment vessel, it is transferred to the climatic chamber with climate control. Within this, but non-pressurized climatic chamber, the ripening process is continuously monitored and completed after different maturation times, depending on paper type and paper quality. After removal of the book from the climate chamber, the pH of the paper is usually in its outer layers usually at a value> 7.5.
  • the active ingredient is blown in such an amount that it remains completely on / in the paper sheets.
  • the active substance is not offered to the paper in an excess, so that an unused excess of active substance can subsequently be removed from the treatment vessel.
  • the active ingredient can be added to the paper in such an amount and in such a manner that the paper absorbs all the supplied active ingredient and, after the treatment vessel, still has free active substance for a continuation of the deacidification.
  • the active ingredient is supplied in powder form and is usually MgO.
  • the active ingredient is intended to neutralize the acid in the paper and build up an alkaline reserve against future acid attacks.
  • the basic substances of the active substance are z. As periclase, magnesite or dolomite. The chemical neutralization of the different acids contained in the paper is initiated or initiated.
  • the invention also consists in a device of the type mentioned, which is characterized in that the means for supplying water medium / air mixture comprises a compressor means for a water drop / air mixture and nozzles on the treatment vessel and programs the control unit for the process sequence according to the invention is.
  • a carriage means is retracted and the cart means comprises in a row a plurality of carrying means for each book in the row and the processing kettle has associated with each carrying means a means for supplying water medium / air mixture and active ingredient / air Mix in the processing vessel to the respective book.
  • the carriage means is divided into a plurality of occasional short book trolleys on which the carrying means are distributed, and the processing kettle is divided into a plurality of kettle units mounted together and adapted to receive one each of the short book trolleys.
  • nozzles are provided for the water droplet / air mixture and for the active ingredient / air mixture and for the air blown / purged, if applicable, and / or if a climate chamber is arranged downstream of the treatment vessel, which is provided with a circulating air pump, a temperature device and a humidity device.
  • the treatment vessel is a uniform longitudinally continuous structure and the carriage means is a uniformly continuous long carriage.
  • This device is designed for a maximum number of carrying devices and does not take up more than this maximum number of books over its length.
  • the device is to be operated so that fewer books are introduced for handling than there are lengthwise supports, then the device is unnecessarily long.
  • the known device is therefore poorly adaptable to the respective needs.
  • the long cart is relatively bulky for loading and unloading outside the treatment vessel and requires a relatively large amount of maneuvering space.
  • the treatment vessel can be adapted in length to the respective needs. If there are fewer books in the treatment kettle per treatment, or if fewer books can be loaded or unloaded for each treatment, then it will become shorter Treatment boiler used.
  • the book trolleys are provided. The book trolleys are isolated, ie not permanently coupled together to form a train and can therefore be grouped and loaded in a space-saving manner for loading and unloading outside the treatment vessel. The length adjustment because of selected arrangement of the carriage device is thus exploited for the purpose of simplifying the conditions outside the treatment vessel.
  • each short book carriage is provided with only one carrying device over its length and each boiler unit is provided with a supply device for only one book arranged in the longitudinal direction. This increases the adaptability of the device to the need and also simplifies the transport of the device to the respective location of the device.
  • each short carriage a book carriage motor is associated with an output, which cooperates with a extending in the longitudinal direction of the treatment boiler rail, and the book carriage motors are each controllable by itself.
  • the book carriages in the treatment vessel are each driven by a motor to the assigned boiler unit and are correctly positioned there to the respective device for the supply of water medium / air mixture and active substance / air mixture.
  • the book carriage motor is fixedly mounted on the boiler unit and each book carriage is provided with a power rail. It is then brought a first book carriage with the power rail to the output of a first book carriage motor, which further promotes the book carriage, so that their drive rail in the range of the output of the next book carriage motor passes, etc ..
  • the treatment vessel only at one end Door open and is permanently closed at the other end, so that a boiler unit with the door and a boiler unit is provided with a closure wall.
  • the book carriage motors are reversible, so that the book carriage drive in through the same door opening and extend.
  • the treatment vessel is composed of at least three boiler unit, wherein at least three book trolleys are provided. Outside the treatment vessel, the book trolleys are usually moved by hand.
  • each short carriage has two floors for two books arranged one above the other.
  • the isolated book trolleys can be conveniently loaded with two or more books arranged one above the other.
  • the arrangement of two or more stacked books is appropriate to take advantage of the space in the treatment vessel improved.
  • only two books are provided one above the other.
  • the two books arranged one above the other are at a distance from each other.
  • the means for supplying water medium / air mixture and the supply of active substance / air mixture per vessel unit are also arranged two or more times one above the other to treat each of the stacked books in the same way.
  • a particularly expedient and advantageous embodiment of the invention is also present when the treatment vessel is associated with a supply platform which has at least two juxtaposed parking spaces for each a short book carriage.
  • the provisioning platform, the z. B. is moved to rails, is driven to a loading point where the book trolleys are loaded with the books.
  • the delivery platform is then moved to the treatment vessel to push the book carriages off the platform in the processing vessel.
  • After the treatment of Books are pushed back the book trolleys on the platform, which is driven to a subordinate climatic chamber. There, the treated books are placed in the climatic chamber by the staging platform or its carriage.
  • two treatment platforms are assigned to the treatment vessel, one of which serves to load the book trolleys with books and to load the loaded book trolleys into the processing vessel and the other to dispense the loaded book trolleys from the processing vessel and unload them at the climatic chamber ,
  • the book carriages travel on the supply platform on rails;
  • the device according to Fig. 1 comprises a treatment vessel 1, which is tightly closed all around after the introduction of a book 2 to be treated.
  • the book 2 is located in the treatment vessel 1 on a support means 3, which is reciprocally movable by means of a book carriage motor 4 according to a double arrow 5 back and forth.
  • the book is on the support means 3 with the spine down and the two book covers to the side, so that the paper sheets 6 are free upwards.
  • a vacuum pump 7 is connected to the treatment vessel 1.
  • 2 nozzles 8 are provided laterally in the treatment vessel 1, which via a branch member 9 optionally to a compressor means 10 for warm cleaning air, to a compressor means 11 for Water droplets / air mixture and a compressor 12 for active ingredient / air mixture can be connected.
  • the treatment vessel 1 is functionally connected via intermediate means 13 to a climatic chamber 14, which is tightly closed all around after the introduction of a book 2 'to be treated.
  • the climatic chamber 14 are associated with a circulating air pump 15, a temperature device 16 and a humidity device 17 in order to set a desired climate with respect to temperature and humidity in the climate chamber.
  • the climate chamber 14 includes a shelf 20.
  • the carrying device 3 When the carrying device 3 is retracted with a book 2 into the processing vessel 1, a door 18 located at the one end side of the processing vessel closes. Then the vacuum pump 7 starts to work, which extracts air from the processing vessel 1 and a negative pressure in the processing vessel. initially 150 mbar, generated. When this negative pressure is reached, the carrying device 3 begins to oscillate in accordance with the double arrow 5. At the same time compressed air is blown through the nozzles 10 8 of the compressor means, wherein the compressed air to a warm air temperature of z. B. is heated to 40 ° C or is. By the oscillation and the compressed air, the paper sheets 6 are fanned out.
  • the vacuum pump 7 is still working, sucks air with accumulated dirt and keeps a reduced negative pressure of z. B. 400 mbar in the treatment vessel 1 upright. In this reduced negative pressure is started to cause by means of the compressor means 11 via the nozzles 8, a first injection of a water droplet / air mixture. During this first blowing the vacuum pump 7 is turned off and it forms an overpressure of z. B. 3,000 mbar.
  • the support means 3 oscillates constantly according to the double arrow 5. With further oscillation and further introduction of compressed air then carried by the compressor means 12, the injection of active ingredient / air mixture and then the second injection of water droplets / air mixture. It is then switched off the carriage motor 4 and eliminated the overpressure.
  • the support device 3 is removed with the book 2 on the door 18 from the treatment vessel 1 and brought by the intermediate means 13 through a door 19 in the climatic chamber 14.
  • the book 2 'remains during a sufficient maturation period of, for example, a week in the climatic chamber 14, in which a predetermined temperature-humidity climate by means of the circulating air pump 15, the temperature device 16 and the humidity device 17 is maintained.
  • the book 2 ' is in the closed state on the shelf 20th
  • Fig. 2 Based on the wiring diagram in Fig. 2 The operation of the device according to Fig. 1 described in more detail.
  • the book is located in the treatment vessel 1 on the support.
  • the door has closed automatically and is pressed against a boiler flange.
  • the vacuum pump 7 starts and a valve 2.2. opens.
  • the extracted air is removed by distilled water in an air scrubber 3.0. directed to clean this exhaust air.
  • the carrying device begins by means of the carriage motor with the reciprocating movement and that at a first speed.
  • the deflated air is via the air scrubber 3.0. cleaned.
  • Injection valves 6.3.2., 6.4.2., 6.5.2. and 6.6.2. are opened to push active substance, which is stored in storage tanks 6.3., 6.4., 6.5. and 6.6. located.
  • blow-off valves 6.3.3., 6.4.3., 6.5.3. and 6.6.3. opened for active ingredient and the active ingredient is added via the nozzles 1.8.1., 1.8.2., 1.8.3. and 1.8.4. evenly distributed on the pages of the book.
  • Now open the valves 4.3.1.1., 4.3.2.1., 4.3.3.1. and 4.3.4.1. and 1,660 mg of distilled water are distributed evenly and finely atomized per nozzle on the paper sheets.
  • the carriage motor is braked to a third speed.
  • the valves 1.8.1.1., 1.8.2.1., 1.8.3.1. and 1.8.4.1. will be closed now.
  • the scrolling in the book thus stops; the air pressure is less by itself, since the pressure compensating valve 7.0. still open.
  • the carriage motor will now be switched off as well. If the pressure has fallen to about 1,000 mbar, the door of the treatment vessel 1 opens automatically.
  • the circuit diagram according to Fig. 2 also shows a compressor means 10 for warm compressed air of 40 ° C, a pressure reducing valve 1.3. and a control line 1.4. with a control valve 1.5 .. Furthermore, there are provided a distributor 1.7., A control line 4.2.1. with a pressure reducing valve 4.2., valves 6.5.1. and 6.6.1. for active substance, one line 7.1. for pressure equalization, a distributor 6.1., reservoir 6.3. and 6.4. for active substance and valves 6.3.1. and 6.4.1. for active ingredient.
  • the support means 3 is provided on a short carriage 21, which consists essentially of four wheels 22 and a frame 23 and moves on rails not shown in the treatment vessel 1.
  • the book carriage motor 4 is shown on the carriage 21, although it is preferably located on the treatment vessel.
  • the climate chamber 14 contains more than two superimposed shelves 20, and the books shown 2 'are, as is the practice, different sizes.
  • the device according to 4 to 6 comprises a treatment vessel 1, which consists of five boiler units 24, which are assembled in pairs in assembly areas 25.
  • One outer boiler unit 24 is provided with the door 18 and the other outer boiler unit is provided with a closure wall 26.
  • Each boiler unit 24 stands on its own legs 27.
  • Each boiler unit 24 is provided, in a central area, with a pair of rails 28, which collide at the mounting areas 25 and result in overall rails extending along the entire processing vessel 1.
  • the wheels 22 roll a Lore 21 and it is arranged on each boiler unit 24, a short book carriage 21, wherein the book carriages are not mechanically connected to each other.
  • Each book carriage 21 is assigned a book carriage motor 4 in the boiler unit 24, which operates via an output 29 on a drive rail 30 which sits on the carriage 21.
  • Each Buchwangen forms on its frame 23 carrying device in two floors 31, so that in accordance with Fig. 4 two books 2 are arranged one above the other.

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Claims (15)

  1. Procédé de désacidification de livres, dans lequel un livre comprenant des feuilles de papier est introduit dans une cuve de traitement,
    dans lequel les feuilles de papier sont traitées avec un mélange milieu aqueux/air et soufflé avec un mélange principe actif/air,
    moyennant quoi, dans la cuve de traitement, par rapport à une pression normale de 1000 mbar, une dépression est réglée une fois et une surpression est réglée une autre fois,
    moyennant quoi les feuilles de papier sont d'abord soufflées avec une dépression à l'aide d'un mélange gouttes d'eau/air, puis avec une surpression à l'aide d'un mélange principe actif/air puis à nouveau avec une dépression à l'aide d'un mélange gouttes d'eau/air et
    moyennant quoi les gouttes d'eau du mélange gouttes d'eau/air sont à maximum 50°C lors de leur entrée dans la cuve de traitement.
  2. Procédé selon la revendication 1, caractérisé en ce que les gouttes d'eau sont des particules d'eau finement pulvérisées.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les gouttes d'eau du mélange gouttes d'eau/air sont à maximum 40°C lors de leur entrée dans la cuve de traitement.
  4. Procédé selon la revendication 1, 2 ou 3, caractérisé en ce que, au soufflage répété avec le mélange gouttes d'eau/air et le soufflage avec le mélange principe actif/air dans la cuve de traitement, correspond une surpression d'au moins 1500 mbar, de préférence d'au moins 2000 mbar.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un prétraitement précédant le premier soufflage avec le mélange gouttes d'eau/air comprend la production d'une dépression dans la cuve de traitement et en ce que la dépression est réglée à une valeur inférieure à 250 mbar.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que le prétraitement précédant le premier soufflage avec le mélange gouttes d'eau/air comprend la production d'une dépression dans la cuve de traitement et en ce que le réglage de la dépression a lieu après l'introduction du livre dans la cuve de traitement ainsi qu'avant un soufflage avec de l'air de nettoyage et/ou avant une aspiration d'air chargé d'impuretés hors de la cuve de traitement.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que le livre est ensuite amené au post-traitement dans une chambre climatique dans laquelle il reste pendant un temps de maturation prédéterminé à des conditions régulées de température et d'humidité.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que le principe actif est soufflé dans une quantité telle qu'il reste entièrement sur/dans les feuilles de papier.
  9. Dispositif de désacidification de livres selon le procédé selon l'une des revendications précédentes,
    dans lequel une pompe à vide aspirante est connectée à la cuve de traitement,
    un dispositif d'introduction du mélange milieu aqueux/air à travers des ouvertures dans la cuve de traitement est prévu,
    un moyen de compression (12) pour le mélange principe actif/air fonctionne par l'intermédiaire de buses dans la cuve de traitement et une unité de commande est prévue,
    moyennant quoi le dispositif d'introduction du mélange milieu aqueux/air comprend un moyen de compression (11) pour un mélange gouttes d'eau/air et des buses (8) sur la cuve de traitement (1) et
    moyennant quoi l'unité de commande est programmée selon l'une des revendications 1 à 8,
    moyennant quoi, pour la désacidification, un dispositif à chariot est intégré dans la cuve de traitement et
    moyennant quoi le dispositif à chariot comprend, sur une rangée, une pluralité de dispositifs porteurs pour un livre dans la rangée et à la cuve de traitement comprend, attribué à chaque dispositif porteur, un dispositif d'introduction de mélange milieu aqueux/air et de mélange principe actif/air dans la cuve de traitement sur le livre concerné, et moyennant quoi la cuve de traitement (1) est divisée en une pluralité d'unités de cuve (24) assemblées et conçues chacune pour le logement d'un des chariots de livres courts (21).
  10. Dispositif selon la revendication 9, caractérisé en ce que, pour le mélange gouttes d'eau/air et pour le mélange principe actif/air et pour l'air soufflé le cas échéant pour le nettoyage/feuilletage, les mêmes buses (8) sont prévues.
  11. Dispositif selon la revendications 9 ou 10, caractérisé en ce qu'une chambre climatique (14) est branchée en aval de la cuve de traitement, qui est munie d'une pompe de circulation d'air (15), d'un dispositif thermostatique (16) et d'un dispositif de régulation de l'humidité (17).
  12. Dispositif selon les revendications 9 à 11, caractérisé en ce que chaque chariot de livre court (21) est muni sur toute sa longueur d'un seul dispositif porteur (3) et chaque unité de cuve (24) est munie d'un dispositif d'introduction d'un mélange pour un seul livre (2) disposé dans la direction longitudinale.
  13. Dispositif selon la revendications 9 ou 12, caractérisé en ce que, dans la cuve de traitement (1), à chaque chariot de livre court (21), correspond un moteur de chariot de livre (4) avec une sortie (29), qui interagit avec un rail d'entraînement (30) qui s'étend dans la direction longitudinale de la cuve de traitement, et les moteurs des charlots de livres (4) sont contrôlables individuellement.
  14. Dispositif selon l'une des revendications 9 à 13, caractérisé en ce qu'une unité de commande est prévue, qui fonctionne sur un moteur de chariot de livre (4) de chaque chariot de livre court (21) selon un programme, selon lequel le chariot de livre court se déplace vers une unité de cuve (24) qui lui est attribuée, y effectue un mouvement de va-et-vient oscillant, puis sort de la cuve de traitement (1).
  15. Dispositif selon l'une des revendications 9 à 14, caractérisé en ce que le dispositif porteur (3) de chaque chariot de livre court comprend deux étages (31) pour deux livres (2) superposés ou en ce qu'à la cuve de traitement (1) correspond une nacelle de préparation, qui comprend au moins deux emplacements disposés l'un à côté de l'autre pour chaque chariot de livre court (21).
EP20020012965 2001-08-10 2002-07-01 Procédé et dispositif de déacidification de livres Expired - Lifetime EP1283300B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001139517 DE10139517A1 (de) 2001-08-10 2001-08-10 Verfahren und Vorrichtung zum Entsäuern von Büchern
DE10139517 2001-08-10

Publications (3)

Publication Number Publication Date
EP1283300A2 EP1283300A2 (fr) 2003-02-12
EP1283300A3 EP1283300A3 (fr) 2004-10-13
EP1283300B1 true EP1283300B1 (fr) 2012-09-12

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EP20020012965 Expired - Lifetime EP1283300B1 (fr) 2001-08-10 2002-07-01 Procédé et dispositif de déacidification de livres

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EP (1) EP1283300B1 (fr)
DE (1) DE10139517A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108642965A (zh) * 2018-05-15 2018-10-12 中国科学技术大学 一种电吸附法纸张脱酸的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SK287856B6 (sk) 2008-06-09 2012-01-04 Gabriela Katuscakova Method of modification of documents, especially paper documents, books, archive documents and others sheet materials
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