EP1055031A1 - Verfahren zur entsäuerungsbehandlung von beschrifteten oder bedruckten papiererzeugnissen - Google Patents
Verfahren zur entsäuerungsbehandlung von beschrifteten oder bedruckten papiererzeugnissenInfo
- Publication number
- EP1055031A1 EP1055031A1 EP99907316A EP99907316A EP1055031A1 EP 1055031 A1 EP1055031 A1 EP 1055031A1 EP 99907316 A EP99907316 A EP 99907316A EP 99907316 A EP99907316 A EP 99907316A EP 1055031 A1 EP1055031 A1 EP 1055031A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- book
- jet
- nozzle
- pages
- active substance
- Prior art date
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000007639 printing Methods 0.000 title abstract 2
- 239000013543 active substance Substances 0.000 claims description 60
- 239000004480 active ingredient Substances 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 13
- 230000003750 conditioning effect Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000005728 strengthening Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims 4
- 229940079593 drug Drugs 0.000 claims 4
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000011149 active material Substances 0.000 abstract 2
- 229920002472 Starch Polymers 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0063—Preservation or restoration of currency, books or archival material, e.g. by deacidifying
-
- 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
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/66—Treating discontinuous paper, e.g. sheets, blanks, rolls
Definitions
- the present invention relates to a method for deacidifying treatment of labeled or printed paper products (hereinafter referred to as "books”) and a corresponding device for deacidifying treatment.
- a generic method and a corresponding device are already known from WO 96/12066.
- the book is fanned out in its standing, open position by means of a large-volume opening jet with respect to its individual pages and treated by means of individual jets of fluidized active substance arranged along a swivel arm moving to and fro below the book and separate air jets in an alternating arrangement between the fanned out book pages.
- the process mentioned above has shown that the introduction of active substance between the individual pages of the book was not always uniform.
- the object of the present invention is to improve the generic method and the related device in such a way that the most uniform possible entry of active substance between the pages of the book is made possible.
- the opening beam has a curved shape when viewed in section.
- the orientation of the curvature is expediently towards the spine. This achieves an optimal opening of the book pages for the active ingredient entry, both in the central area of the book and at the marginal areas, i.e. near the book cover.
- the curved opening beam is flat as seen in section.
- the opening beam is expediently slightly inclined toward the spine of the book.
- the book is additionally acted upon from the side facing away from the spine with a further opening jet, which expediently also inclines towards the spine. - 2 - is ordered. In this way, an optimal opening of the individual book pages up to the spine is achieved.
- This further opening jet is expediently, also seen in section, curved opening jet of preferably larger diameter compared to the main opening jet.
- this additional opening beam can be varied with regard to its height position and inclination towards the spine in order to be able to treat books of different sizes accordingly.
- This further opening beam is also flat, as seen in section.
- Another aspect of the present invention relates to reducing the flow resistance prevailing between the individual pages of the book. This is achieved according to the invention in that a targeted suction is carried out on the opposite side of the book.
- the reduction in flow resistance enables lower injection pressures and, as a consequence, a reduction in the mechanical stress on the individual pages of the book, without the treatment result being impaired.
- the suction is expediently carried out in a targeted manner in the area of the exit of the active substance jet from the top of the book, preferably in the area of the book facing the spine.
- the position of the suction is varied depending on the type of book to be treated. This position can even be varied automatically if required.
- the method according to the invention also claimed in a subordinate manner, includes the idea of premixing an atomizing gas, for example compressed air and the fluidized active ingredient in a mixing chamber in order to generate the active ingredient jet, and then introducing the homogenized mixture into the book.
- the mixing is advantageously carried out directly in a mixing chamber of the active substance nozzle. This method improves the homogeneity of the active ingredient input - 3 - between the individual compared to the aforementioned method of the prior art, in which separate active agent jets and air jets are alternately provided. An irregular loading of the book with active ingredient is thus avoided.
- the mixing chamber is under excess pressure, the active substance and / or the atomizing gas being expediently fed from both sides of the active substance nozzle.
- the active substance jet is generated via an active substance nozzle with a slit-shaped outlet opening, which sweeps the fanned pages of the book back and forth.
- the active substance jet is oriented somewhat towards the book spine as far as its jet core is concerned.
- the angle of inclination of the jet core can increase from the outside to the inside of the book, as a result of which an optimal loading of the book is achieved.
- Another idea, as a secondary component of the overall idea, is to blow in a paper strengthening agent for paper reinforcement, expediently together with the active ingredient during the treatment process.
- the paper strengthening agent should expediently take place during the conditioning step following the treatment step under increased atmospheric humidity. Activation agents are also introduced during the conditioning step to accelerate paper consolidation.
- the paper strengthening can advantageously be integrated into the existing method without additional complex process steps. - 4 -
- the jet of moist air is emitted by a flow influencer that moves back and forth across the jet cross-section, e.g. acted upon in the form of a flat, rod-shaped structure.
- the amount of active ingredient required for the treatment of a book is made up of the portion of active ingredient for neutralizing the paper plus the portion for ensuring a so-called "alkaline reserve".
- the active ingredient is constantly introduced by the present process, whereby the amount to be loaded depends on the weight of the to be treated book. This results in the so-called "base time" for the treatment of the book. Rough papers can be treated adequately based on the base time. In contrast, smooth papers accept the active substance less well and therefore have to be treated regularly for longer. So far, it was only possible to roughly estimate the surface roughness by the operating personnel and the books basically longer, i.e. treat with an additional certainty, which has led to an increased consumption of active ingredient and the books to be treated also contained an excessive proportion of active ingredient.
- the method according to the invention proposes the roughness of the paper to be treated, e.g. via an optical or acoustic paper roughness measurement, and to determine the degree of treatment, in particular the length of treatment with active substance, on the basis of the detected roughness.
- the optimum proportion of active ingredient is entered into the paper for each paper quality.
- the invention also proposes, in a subordinate claim, that when treating paper pages stored in folders, the area facing the folder spine is clamped on both sides from the outside to simulate a tied back. As a result, the folder thus clamped can be acted upon like an active substance book. - 5 -
- the invention also includes a device for deacidifying treatment of printed and paper products, in which an additional discharge nozzle is positioned on the side of the book opposite the opening jet nozzle in order to reduce the flow resistance within the book during the treatment of active substance.
- the extraction nozzle is expediently designed to be height-adjustable.
- a particularly high reduction in the flow resistance is achieved in that the shape of the print nozzle, viewed in cross section, corresponds approximately to the contour of the book in the area of the book spine and / or the print nozzle is positioned approximately at the same distance from the book as the opening street nozzle.
- the outlet opening of the opening jet nozzle is designed as a curved slot nozzle, e.g. provided as a circular slot nozzle.
- slot nozzle is slightly inclined towards the spine of the book, starting from the parallel line.
- a further opening jet nozzle is provided on the side opposite the book on the side opposite the book spine, the opening jet being inclined with respect to its jet core toward the book spine.
- the opening jet nozzles can be arranged to be displaceable and / or pivotable towards the spine of the book to ensure different angular positions.
- the active substance nozzle is designed as a mixing nozzle in which a mixture of active substance and atomizing gas is provided for blowing into the book, which has the consequence. that a particularly homogeneous loading of the book with active ingredient is achieved.
- the active substance nozzle is of slot-shaped design and is mounted on a swivel arm.
- the dimensioning of the active substance nozzle is in a range of 1.0-0.1 mm, preferably 0.7-0.2 mm. - 6 -
- the direction of the active substance jet is determined by aligning individual connecting channels between an atomizing gas chamber, in particular an air chamber, and a mixing chamber into which fluidized active substance is blown.
- the connecting channels are advantageously inclined towards the spine.
- the holder of the device has clamping means for the treatment of paper pages stored in the folder, which clamp the individual paper pages in their entirety laterally in the area facing the folder back and thereby simulate a fixed spine of the folder.
- the folder can be treated like an active ingredient in the manner described above.
- the clamping means comprise, on both sides of the main outer surface of the individual paper sides, position-adjustable holding rollers which are in contact with the paper outer sides in the clamped state.
- the holding rollers are mounted eccentrically with respect to their axis, so that a change in the distance of the holding roller from the paper can be achieved in a simple manner by rotating the holding roller.
- Figure 1 is a highly simplified schematic representation of the device according to the invention within a treatment room in front view.
- Fig. 2 shows the representation of Figure 1 in side view.
- FIG. 3 shows a sectional illustration of the discharge nozzle
- FIG. 4 shows a perspective illustration of the active ingredient nozzle (FIG. 4a), a cross-sectional illustration (FIG. 4b) and a longitudinal sectional illustration in the region of the exit of the active ingredient jet (FIG. 4c);
- Fig. 6 is a greatly simplified representation of the measures for conditioning as well
- Fig. 7 is a perspective view of the wet air nozzle with flow restrictor
- Fig. 8 is a highly simplified schematic representation of the detection of the surface roughness for .Adapting the effective treatment time and
- FIG. 9 shows a highly simplified schematic illustration of the holder for the active substance treatment of folders in a top view (FIG. 9a) and in a side view of one half of the holder.
- Reference number 1 in Fig. 1 denotes the device for deacidifying treatment of books and the like in its entirety. It comprises a closed or at least lockable treatment room 2, in which there is at least one holder 5 for positioning a book 3 or the like.
- the holder 5 shown in FIG. 1 has a knife bar 9 which can be slid onto the spine 8 for positioning a book 3.
- the book 3 is held standing and open in the holder 5 in a manner known per se, the two book covers 6, 7 additionally being attached the bracket can be fixed.
- J ⁇ J of the underside of the book 3 is an opening jet nozzle 12 as an arc slot nozzle with a slight inclination towards the spine 8 to generate an opening jet 11 in the form of a flat flat jet, which ensures a fanning out of the individual book pages 4 during operation.
- a corresponding further opening jet nozzle 14 with a larger diameter is provided, preferably in the outer peripheral region of the respective book pages, as can be seen from FIG. 2.
- Both opening jet nozzles 12, 14 can be varied with regard to their radial position, height position and with regard to their angle of inclination in order to ensure the best possible adaptation to the book 3 to be treated and thus an optimal fanning out.
- the extraction nozzle 13 On the upper side, approximately opposite the opening jet nozzle 12 at a comparable distance, there is the extraction nozzle 13. It serves to reduce the flow resistance when the active substance passes through.
- the shape of the draw-off nozzle 13 corresponds (cf. FIG. 3 approximately to the shape in the contour of the open book 3 in the region of the book spine 8.
- the active substance nozzle 10 is located between the book 3 and the two opening jet nozzles 12, 14 positioned on the underside of the book 3.
- Both the opening jet nozzle 12 and the opening jet nozzle 14 with a larger diameter are on the one hand height-adjustable (see FIG. 2) and on the other hand their inclination to the book 3 is adjustable. The same applies to the trigger nozzle 13. This allows the optimum setting for the book 3 in question to be made.
- the active ingredient nozzle 10 moves during operation of the overall device 1 below the underside of the book 3 with the aid of a suitable drive (not shown), positioned on a swivel arm 15, back and forth.
- the active ingredient nozzle 10 is designed according to FIG. 4a as a slot nozzle with a slot width of about 0.4 mm and has on both sides an inlet 7 for the active ingredient, which is fluidized with, i.e. Compressed air is transported and an inlet 38 for compressed air as an atomizing gas.
- the fluidized active substance is introduced into a triangular mixing chamber 17 arranged on the upper side, whereas compressed air is introduced into the atomizing gas chamber 16 and penetrates into the mixing chamber 17 via connecting channels 18.
- the atomizing gas chamber 16, like the mixing chamber 17, is under overpressure.
- the connecting channels 18 are arranged in such a way that they have a greater inward inclination in the region of the book spine 8 than in the relevant outer region of the active substance nozzle 10. This ensures that the spaces between the book pages in the book spine area are optimally acted upon with active ingredient.
- the active substance (cf. FIG. 5) is additionally supplied with starch in the so-called “fluidization chamber 27” and blown into the book 3 together with the active substance through the active substance nozzle 10.
- the starch acts here as a paper strengthening agent is activated in the subsequent conditioning step with increased air humidity and causes the treating paper to solidify. The paper feels "natural”.
- a book 3 with book pages of normal thickness is treated with active substance via the feed A in the treatment room 2 and then transferred to the conditioning area 35.
- the book 3 is exposed to moist air via the access C, whereby the active ingredient, which has been introduced into the book 3 dry as a powder, is activated.
- the active ingredient which has been introduced into the book 3 dry as a powder
- the book 3 is transferred to the conditioning area 35 and there is also supplied with moist air and activating agents added to the moist air, in particular formaldehyde, via the access D.
- the activating agent brings about a particularly rapid conversion of the starch, i.e. Solidification of the book pages.
- FIG. 7 shows the moist air nozzle 29 used in the conditioning as a curved slot nozzle, on the upper side of which there is a to and fro changing flow influencer 30.
- the flow influencer 30 interrupts the flow emerging evenly from the slot nozzle, as a result of which the individual book pages are subjected to an additional mechanical action in the area of the opened book 3. As a result, the moisture gets even better between the individual book pages. - 10 -
- a further embodiment of the method and the device according to the invention comprises a roughness sensor 31, with which e.g. the surface roughness of the book pages is detected optically or acoustically.
- the weight of the book 3 is also recorded by means of a scale 32, these values giving a base time together with the amount of active substance introduced.
- the measured roughness is equated to a factor with which the base time is changed into an effective treatment time depending on the roughness of the paper to be treated. If the paper is particularly fine, this leads to an extended treatment time. In contrast, the treatment time for rough papers can be reduced accordingly.
- the device according to the invention detects a holder 33 consisting of holding rollers 20, 21 arranged laterally to the paper pages 4 bound in the folder 3.
- the holder 33 in this case comprises three holding rollers 20, 21 with respect to each paper side between the holding rollers 20, 21 are intended as recesses for the two folder brackets 34.
- the holding rollers 20, 21 are mounted eccentrically along a rod 36 (cf. FIG. 9b) and can therefore be adapted well to different degrees of filling of the folder with lateral pressure.
- the holding rollers 20, 21 fix the folder filling in the area of the folder bracket 34 and thus simulate a "book spine".
- the folder covers 22, 23 are held by plate-like holders 33 either in a line or at an angle to the folder spine 19. The loading of the folder with Active ingredient and optionally reinforcing agent is carried out in the manner already described above.
- the holders 33 are removed, the holding rollers 20, 21 are pulled outwards, so that the folder treating the active substance can be removed.
Landscapes
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Eyeglasses (AREA)
- Making Paper Articles (AREA)
- Steroid Compounds (AREA)
- Treatment Of Fiber Materials (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19805271 | 1998-02-10 | ||
| DE19805271 | 1998-02-10 | ||
| PCT/DE1999/000346 WO1999041454A1 (de) | 1998-02-10 | 1999-02-09 | Verfahren zur entsäuerungsbehandlung von beschrifteten oder bedruckten papiererzeugnissen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1055031A1 true EP1055031A1 (de) | 2000-11-29 |
| EP1055031B1 EP1055031B1 (de) | 2003-08-13 |
Family
ID=7857196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99907316A Expired - Lifetime EP1055031B1 (de) | 1998-02-10 | 1999-02-09 | Verfahren zur entsäuerungsbehandlung von beschrifteten oder bedruckten papiererzeugnissen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6471915B1 (de) |
| EP (1) | EP1055031B1 (de) |
| AT (1) | ATE247192T1 (de) |
| AU (1) | AU2712699A (de) |
| DE (1) | DE59906591D1 (de) |
| WO (1) | WO1999041454A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034100A1 (de) | 2007-09-18 | 2009-03-19 | Stu Fakulta Chemickej A Potravinárskej Technológie | Mehrzweckvorrichtung zur Modifizierung von Zellulosematerialien und Art der Modifizierung von Zellulosematerialien |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10059494B4 (de) * | 2000-11-30 | 2007-05-24 | Zfb Project-Management Gmbh | Konditionierungsmittel und Verfahren zur Konditionierung sowie dessen Verwendung |
| SK50682009A3 (sk) * | 2009-11-02 | 2011-05-06 | Stu Fakulta Chemickej A Potravinárskej Technológie | Zmes určená na jednostupňovú modifikáciu kyslých papierov a spôsob použitia tejto zmesi |
| CN108004846B (zh) * | 2017-11-28 | 2021-08-10 | 华南理工大学 | 一种古籍增强加固方法 |
| CN113186754B (zh) * | 2021-04-09 | 2022-05-06 | 杭州众材科技股份有限公司 | 一种适用于纸张均匀化脱酸的保护方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4114075A1 (de) | 1991-04-30 | 1992-11-05 | Inst Grafische Technik Zentral | Verfahren zum konservieren von buechern |
| DE4436635C2 (de) | 1994-10-13 | 1997-08-14 | Oswald Dr Bell | Verfahren sowie Vorrichtung zur Entsäuerung von Druck- und Papiererzeugnissen aller Art |
| US5770148A (en) | 1996-01-16 | 1998-06-23 | Preservation Technologies, L.P. | Method and apparatus for the deacidification of library materials |
-
1999
- 1999-02-09 US US09/601,944 patent/US6471915B1/en not_active Expired - Fee Related
- 1999-02-09 EP EP99907316A patent/EP1055031B1/de not_active Expired - Lifetime
- 1999-02-09 WO PCT/DE1999/000346 patent/WO1999041454A1/de not_active Ceased
- 1999-02-09 DE DE59906591T patent/DE59906591D1/de not_active Expired - Fee Related
- 1999-02-09 AT AT99907316T patent/ATE247192T1/de not_active IP Right Cessation
- 1999-02-09 AU AU27126/99A patent/AU2712699A/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9941454A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034100A1 (de) | 2007-09-18 | 2009-03-19 | Stu Fakulta Chemickej A Potravinárskej Technológie | Mehrzweckvorrichtung zur Modifizierung von Zellulosematerialien und Art der Modifizierung von Zellulosematerialien |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999041454A1 (de) | 1999-08-19 |
| AU2712699A (en) | 1999-08-30 |
| DE59906591D1 (de) | 2003-09-18 |
| ATE247192T1 (de) | 2003-08-15 |
| EP1055031B1 (de) | 2003-08-13 |
| US6471915B1 (en) | 2002-10-29 |
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