ITRM20120106A1 - PROCEDURE FOR THE IMPLEMENTATION OF AN EPOXY RESIN FROM A METALLIC MATRIX ENGRAVED TO THE CALCOGRAPHIC PRINT - Google Patents
PROCEDURE FOR THE IMPLEMENTATION OF AN EPOXY RESIN FROM A METALLIC MATRIX ENGRAVED TO THE CALCOGRAPHIC PRINT Download PDFInfo
- Publication number
- ITRM20120106A1 ITRM20120106A1 IT000106A ITRM20120106A ITRM20120106A1 IT RM20120106 A1 ITRM20120106 A1 IT RM20120106A1 IT 000106 A IT000106 A IT 000106A IT RM20120106 A ITRM20120106 A IT RM20120106A IT RM20120106 A1 ITRM20120106 A1 IT RM20120106A1
- Authority
- IT
- Italy
- Prior art keywords
- epoxy resin
- procedure
- matrix
- calcographic
- Prior art date
Links
- 239000011159 matrix material Substances 0.000 title claims description 18
- 239000003822 epoxy resin Substances 0.000 title claims description 14
- 229920000647 polyepoxide Polymers 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- 239000002184 metal Substances 0.000 claims description 5
- 230000010076 replication Effects 0.000 claims 2
- 238000009792 diffusion process Methods 0.000 claims 1
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920002379 silicone rubber Polymers 0.000 description 8
- 239000004945 silicone rubber Substances 0.000 description 8
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 238000005323 electroforming Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 235000006679 Mentha X verticillata Nutrition 0.000 description 1
- 235000002899 Mentha suaveolens Nutrition 0.000 description 1
- 235000001636 Mentha x rotundifolia Nutrition 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C3/00—Reproduction or duplicating of printing formes
- B41C3/06—Reproduction or duplicating of printing formes to produce printing blocks from plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/10—Intaglio printing ; Gravure printing
Description
Procedimento per la realizzazione di una replica in resina epossidica da una matrice metallica incisa finalizzata alla stampa calcografica. Procedure for making an epoxy resin replica from an engraved metal matrix aimed at intaglio printing.
Le matrici calcografiche conservate da istituto Nazionale per la Grafica (ING) sono opere sottoposte a tutela ai sensi del Codice dei Beni Culturali del 2004 e quali beni culturali non vengono più utilizzate per essere stampate se non per motivi di studio e/o documentazione. The intaglio matrices preserved by the National Institute for Graphics (ING) are works subject to protection under the 2004 Code of Cultural Heritage and which cultural assets are no longer used to be printed except for study and / or documentation purposes.
Nel 2001 l'ING ha messo a punto un procedimento che consente la realizzazione di una replica per elettroformatura (galvanoplastica) delle matrici calcografiche. Le operazioni per arrivare al risultato finale erano le seguenti: In 2001 the ING developed a procedure that allows the creation of a replica by electroforming (electroplating) of the intaglio matrices. The operations to arrive at the final result were the following:
• Calco in gomma siliconica colabile della matrice calcografica; • Cast in castable silicone rubber of the chalcographic matrix;
• Contro-calco in resina epossidica; • Counter-cast in epoxy resin;
• Metallizzazione della resina epossidica, per renderla elettricamente conduttiva; • Metallization of the epoxy resin, to make it electrically conductive;
• Elettrodeposizione metallica sul contro-calco in resina (calco galvanico); • Metallic electrodeposition on the resin counter-cast (galvanic cast);
• Elettrodeposizione metallica sul calco galvanico per ottenere lavatrice replica; • Metallic electrodeposition on the galvanic cast to obtain replica washing machine;
• Rettifica della matrice ottenuta per uniformare lo spessore della lastra metallica. • Grinding of the matrix obtained to uniform the thickness of the metal plate.
Le fasi operative sopra descritte erano affidate all'Istituto Poligrafico e Zecca dello Stato (IPZS), e le forme prodotte erano quattro. The operational phases described above were entrusted to the State Printing and Mint Institute (IPZS), and the forms produced were four.
La replica galvanica, perfettamente rispondente all'originale, viene utilizzata dall'ING per realizzare stampe per la vendita al pubblico. The galvanic replica, perfectly matching the original, is used by the ING to make prints for sale to the public.
La realizzazione delle repliche galvaniche è stata finora effettuata dall'IPZS, che possiede i laboratori di elettroformatura. Il Laboratorio Diagnostico per le Matrici dell'ING ha pensato di poter ottenere lo stesso risultato finale stampando direttamente un calco in resina epossidica. Con il procedimento messo a punto è così possibile dimezzare i passaggi (due forme) necessari ad ottenere la replica ed abbatterne notevolmente i costi. The realization of the galvanic replicas has so far been carried out by the IPZS, which owns the electroforming laboratories. The Diagnostic Laboratory for Matrices of the ING thought it would be possible to obtain the same final result by directly printing an epoxy resin cast. With the procedure developed it is thus possible to halve the steps (two forms) necessary to obtain the replica and significantly reduce costs.
Il procedimento è il seguente: The procedure is as follows:
1. Calco in gomma siliconica colabile di una matrice originale. 1. Cast in castable silicone rubber of an original matrix.
• Lungo i bordi del verso di una matrice originale (con gli incavi perfettamente puliti) viene applicato un nastro adesivo che consenta di colare la gomma siliconica senza che questo invada il verso della matrice stessa. • An adhesive tape is applied along the edges of the reverse of an original matrix (with the grooves perfectly clean) to allow the silicone rubber to be poured without invading the reverse of the matrix itself.
• Viene creata una vasca di colata intorno alla matrice, ad una distanza di almeno 1 cm, distanza necessaria per poter replicare esattamente i bordi della lastra metallica incisa. Vengono poi fissate delle pareti rigide (in plexiglas o altro materiale), applicate sul nastro adesivo sopra citato e unite fra di loro con altro nastro adesivo (figura 1). • A casting tank is created around the matrix, at a distance of at least 1 cm, the distance necessary to exactly replicate the edges of the engraved metal plate. Rigid walls (in Plexiglas or other material) are then fixed, applied to the adhesive tape mentioned above and joined together with other adhesive tape (figure 1).
• Viene colata la gomma siliconica della cassaforma con l'accortezza necessaria ad evitare la formazione di bolle d'aria (figura 2). • The silicone rubber of the formwork is poured with the necessary care to avoid the formation of air bubbles (figure 2).
2. A catalizzazione avvenuta, distacco del calco in gomma siliconica dalla matrice incisa. 2. Once catalyzed, detachment of the silicone rubber cast from the engraved matrix.
3. Preparazione per colare la resina epossidica: 3. Preparation for casting the epoxy resin:
• Creazione di pareti intorno al calco in gomma siliconica per contenere la resina liquida che sarà colata. • Creation of walls around the silicone rubber mold to contain the liquid resin that will be poured.
• Sigillatura delle pareti rigide mediante nastro adesivo e silicone a presa rapida. • Sealing of rigid walls with adhesive tape and quick-setting silicone.
4. Preparazione della resina epossidica: si predilige la scelta di una resina epossidica che abbia buone caratteristiche di elasticità. Oltre alla normale miscelazione di resina ed indurente, si aggiunge un colorante opaco bianco (la colorazione chiara e compatta facilita le successive operazioni di stampa). 4. Preparation of the epoxy resin: the choice of an epoxy resin that has good elasticity characteristics is preferred. In addition to the normal mixing of resin and hardener, an opaque white dye is added (the light and compact color facilitates subsequent printing operations).
Colata della resina epossidica all'interno della nuova cassaforma: un primo strato di resina viene colato interno delle pareti di contenimento. Atteso il tempo necessario alla catalizzazione di tale strato, se ne versa un secondo strato, di colore diverso (la colorazione differente servirà per ima fase successiva). Pouring of the epoxy resin inside the new formwork: a first layer of resin is poured inside the containment walls. After the time necessary for the catalysis of this layer, a second layer of a different color is poured (the different color will be used for the next step).
6. A catalizzazione completata, distacco della resina epossidica dal calco in gomma siliconica. 6. When curing is complete, detachment of the epoxy resin from the silicone rubber mold.
7. Lavorazione della resina epossidica: 7. Processing of the epoxy resin:
• Eliminazione dei margini eccedenti il bordo originario della matrice. • Elimination of margins exceeding the original border of the matrix.
• Lo spessore della matrice di resina risulterà irregolare, a causa delle difformità della matrice originale (imbarcatura e deformazioni di vario tipo). Per uniformare lo spessore stesso si utilizza un pialletto elettrico, lime, carte abrasive e/o punte abrasive applicate a un microtrapano; si va così ad assottigliare il verso della nuova matrice fino ad ottenere ima matrice/replica di spessore più uniforme possibile. In tale operazione, la realizzazione della resina in due colore aiuterà l'operatore a calibrare l'asportazione di materiale, senza arrecare danni irreversibili alla replica stessa. • The thickness of the resin matrix will be irregular, due to the differences in the original matrix (warping and various types of deformations). To even out the thickness, an electric plane, files, abrasive papers and / or abrasive tips applied to a micro-drill are used; the direction of the new matrix is thus reduced until a matrix / replica of the most uniform thickness possible is obtained. In this operation, the realization of the resin in two colors will help the operator to calibrate the removal of material, without causing irreversible damage to the replica itself.
La replica in resina epossidica cosLottenuta è quindi utilizzabile per effettuare una stampa secondo i tradizionali procedimenti della calcografici. The resulting replica in epoxy resin can therefore be used to print according to traditional chalcographic procedures.
Al momento, si prevede di poter tirare circa 50 stampe da ogni matrice in resina. At the moment, it is expected to be able to pull around 50 prints from each resin matrix.
Dal calco in gomma siliconica, sarà però ppssibile ottenere nuove matrici in resina per ulteriori tirature, tenendo conto però che il calco in silicone, invecchiando, non potrà più essere utilizzato (la sua durata, prima che cominci a degradarsi, è di circa sei mesi). From the silicone rubber mold, however, it will be possible to obtain new resin matrices for further runs, taking into account that the silicone mold, as it ages, can no longer be used (its duration, before it begins to degrade, is about six months. ).
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000106A ITRM20120106A1 (en) | 2012-03-21 | 2012-03-21 | PROCEDURE FOR THE IMPLEMENTATION OF AN EPOXY RESIN FROM A METALLIC MATRIX ENGRAVED TO THE CALCOGRAPHIC PRINT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000106A ITRM20120106A1 (en) | 2012-03-21 | 2012-03-21 | PROCEDURE FOR THE IMPLEMENTATION OF AN EPOXY RESIN FROM A METALLIC MATRIX ENGRAVED TO THE CALCOGRAPHIC PRINT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITRM20120106A1 true ITRM20120106A1 (en) | 2013-09-22 |
Family
ID=45955776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000106A ITRM20120106A1 (en) | 2012-03-21 | 2012-03-21 | PROCEDURE FOR THE IMPLEMENTATION OF AN EPOXY RESIN FROM A METALLIC MATRIX ENGRAVED TO THE CALCOGRAPHIC PRINT |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | ITRM20120106A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1135947A (en) * | 1955-08-31 | 1957-05-06 | Method and apparatus for making printing plates constituting plastic replicas | |
| US3283714A (en) * | 1962-05-23 | 1966-11-08 | Courtaulds Ltd | Rollers carrying surface designs for use in printing, embossing and the like |
| WO2007087399A1 (en) * | 2006-01-25 | 2007-08-02 | Dow Corning Corporation | Epoxy formulations for use in lithography techniques |
-
2012
- 2012-03-21 IT IT000106A patent/ITRM20120106A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1135947A (en) * | 1955-08-31 | 1957-05-06 | Method and apparatus for making printing plates constituting plastic replicas | |
| US3283714A (en) * | 1962-05-23 | 1966-11-08 | Courtaulds Ltd | Rollers carrying surface designs for use in printing, embossing and the like |
| WO2007087399A1 (en) * | 2006-01-25 | 2007-08-02 | Dow Corning Corporation | Epoxy formulations for use in lithography techniques |
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