EP0383125A2 - Method for the preparation of reproductions of frescoes or the like and reproductions of fragments of frescoes obtained by this method - Google Patents

Method for the preparation of reproductions of frescoes or the like and reproductions of fragments of frescoes obtained by this method Download PDF

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Publication number
EP0383125A2
EP0383125A2 EP90102172A EP90102172A EP0383125A2 EP 0383125 A2 EP0383125 A2 EP 0383125A2 EP 90102172 A EP90102172 A EP 90102172A EP 90102172 A EP90102172 A EP 90102172A EP 0383125 A2 EP0383125 A2 EP 0383125A2
Authority
EP
European Patent Office
Prior art keywords
photographic reproduction
block
frame
edges
reproduction
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
Application number
EP90102172A
Other languages
German (de)
French (fr)
Other versions
EP0383125B1 (en
EP0383125A3 (en
Inventor
Dario Ronco
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.)
Studio Erre Di Silvia Ronco & C SNC
Original Assignee
Studio Erre Di Silvia Ronco & C SNC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Studio Erre Di Silvia Ronco & C SNC filed Critical Studio Erre Di Silvia Ronco & C SNC
Publication of EP0383125A2 publication Critical patent/EP0383125A2/en
Publication of EP0383125A3 publication Critical patent/EP0383125A3/en
Application granted granted Critical
Publication of EP0383125B1 publication Critical patent/EP0383125B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/04—Modelling plastic materials, e.g. clay
    • B44C3/042—Modelling plastic materials, e.g. clay producing a copy from an original structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F11/00—Designs imitating artistic work

Definitions

  • the present invention relates to a method for the preparation of reproductions of frescoes and the like.
  • the method of the invention is characterized in that it comprises the operations of preparing a photographic reproduction of a fresco, preparing a plane frame provided with a raised edge in the manner of a moulding, positioning the photographic reproduction face down on this frame, cutting the edges of the photographic reproduction, preparing a mixture which can be cast and is adapted to harden, casting this mixture on the frame, separating the block formed in this way from the frame after a period likely to ensure sufficient hardening, the block having the jagged photographic reproduction on one surface, and splintering the edges of the block so as to obtain the appearance of a fragment of a fresco.
  • the photographic reproduction is preferably moistened so as to facilitate its positioning on the plane frame and the cutting of its edges and a glue is preferably applied to the reverse of the photographic reproduction prior to the casting of the mixture.
  • this simple and inexpensive method makes it possible to obtain fragments of frescoes which have a particularly attractive appearance and are perfect reproductions of the original.
  • a plane frame is designated overall by 10 and has a raised moulding 10a and a base wall 10b.
  • a glass sheet 11 whose dimensions correspond to those of the moulding 10a is disposed on this base wall.
  • a photographic reproduction 12 (the thickness of the photographic reproduction is not to scale in the drawings for reasons of clarity) of a fresco or a portion of a fresco is disposed face down on a surface 11a of the glass sheet 11 opposite to the base wall 10b of the frame 10.
  • the photographic reproduction 12 is advantageously produced from a slide using the well-known technique of four-colour offset printing.
  • the weight of the paper is advantageously between 70 and 120 g, preferably between 80 and 100 g.
  • the photographic reproduction 12 is moistened with water before being positioned on the glass sheet 11 and its edges 12a are manually cut after it has been positioned. To ensure the correct positioning of the photographic reproduction 12 it is preferable to pass a rubber roller over the reverse of the reproduction shown in the drawings by 13 so as to eliminate any air bubbles between the reproduction 12 and the surface 11a of the glass sheet 11.
  • the subsequent stage of the method is to spread a glue 14 on the reverse 13 of the photographic reproduction 12.
  • the glue 14, preferably of vinyl type, may be applied to the reverse 13 of the photographic reproduction 12 using a brush.
  • a mixture consisting of plaster, sand and water is then prepared.
  • the ratios between the dry mixture components may vary fairly widely, but optimum results can be obtained using a mixture comprising 50% by weight of plaster and 50% by weight of sand.
  • sawdust or inert products with a low density to the mixture.
  • the mixture is then cast on the sheet 11 and on the photographic reproduction 12 (Fig. 3) so as to obtain a block 15 having a rear surface 15a and a front surface 15b which are completely flush with the visible surface (shown by 16) of the photographic reproduction 12.
  • the block 15 is removed from the frame and its hardening/drying is completed for a period varying between 1 and 2 days. This operation can be accelerated by using hot air drying chambers.
  • edges 15c of the block 15 are splintered to obtain the final shape of the product.
  • the mixture is normally white in colour
  • This colouring is advantageously provided in a non-uniform manner using a swab impregnated with a brown dyestuff which is passed manually over the surface 15b of the block 15. This simulates the colour of the aged plaster which surrounds the fresco.
  • the splintered edges 15c it is advantageous, to prevent subsequent cracking of the block 15, to brush a mixture of colouring agent and glue onto these edges.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Peptides Or Proteins (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Finishing Walls (AREA)

Abstract

A method for the preparation of reproductions of fragments of frescoes comprises the production of a photographic reproduction (12) of a fresco, the positioning of this reproduction (12) with jagged edges on a plane frame (10), the casting of a plaster, sand and water mixture on this frame (10) so as to obtain a block (15) bearing the photographic reproduction (12) on one side (15). The splintering of the edges of this block (15) and possible colouring of the visible portions of the block (15) not covered by the photographic reproduction (12) make it possible to obtain a finished product having the appearance of a fragment of a fresco.

Description

  • The present invention relates to a method for the preparation of reproductions of frescoes and the like.
  • The method of the invention is characterized in that it comprises the operations of preparing a photographic reproduction of a fresco, preparing a plane frame provided with a raised edge in the manner of a moulding, positioning the photographic reproduction face down on this frame, cutting the edges of the photographic reproduction, preparing a mixture which can be cast and is adapted to harden, casting this mixture on the frame, separating the block formed in this way from the frame after a period likely to ensure sufficient hardening, the block having the jagged photographic reproduction on one surface, and splintering the edges of the block so as to obtain the appearance of a fragment of a fresco.
  • The photographic reproduction is preferably moistened so as to facilitate its positioning on the plane frame and the cutting of its edges and a glue is preferably applied to the reverse of the photographic reproduction prior to the casting of the mixture.
  • By means of its above characteristic features, this simple and inexpensive method makes it possible to obtain fragments of frescoes which have a particularly attractive appearance and are perfect reproductions of the original.
  • Further advantages and features of the method of the invention are set out in the following detailed description, given purely by way of non-­limiting example, with reference to the attached drawings, in which:
    • Fig. 1 is a perspective view of the apparatus used in one stage of the method;
    • Fig. 2 is a cross-section along the line II-II of Fig. 1;
    • Fig. 3 is a cross-section similar to Fig. 2 during a further stage of the method;
    • Fig. 4 is a perspective view of the semi-finished product;
    • Fig. 5 is a perspective view of the finished product.
  • In the drawings a plane frame is designated overall by 10 and has a raised moulding 10a and a base wall 10b. A glass sheet 11 whose dimensions correspond to those of the moulding 10a is disposed on this base wall.
  • A photographic reproduction 12 (the thickness of the photographic reproduction is not to scale in the drawings for reasons of clarity) of a fresco or a portion of a fresco is disposed face down on a surface 11a of the glass sheet 11 opposite to the base wall 10b of the frame 10.
  • The photographic reproduction 12 is advantageously produced from a slide using the well-known technique of four-colour offset printing. The weight of the paper is advantageously between 70 and 120 g, preferably between 80 and 100 g.
  • The photographic reproduction 12 is moistened with water before being positioned on the glass sheet 11 and its edges 12a are manually cut after it has been positioned. To ensure the correct positioning of the photographic reproduction 12 it is preferable to pass a rubber roller over the reverse of the reproduction shown in the drawings by 13 so as to eliminate any air bubbles between the reproduction 12 and the surface 11a of the glass sheet 11.
  • The subsequent stage of the method is to spread a glue 14 on the reverse 13 of the photographic reproduction 12. The glue 14, preferably of vinyl type, may be applied to the reverse 13 of the photographic reproduction 12 using a brush.
  • A mixture consisting of plaster, sand and water is then prepared. The ratios between the dry mixture components may vary fairly widely, but optimum results can be obtained using a mixture comprising 50% by weight of plaster and 50% by weight of sand. In order to keep the weight of the finished product down, it is possible to add sawdust or inert products with a low density to the mixture.
  • The mixture is then cast on the sheet 11 and on the photographic reproduction 12 (Fig. 3) so as to obtain a block 15 having a rear surface 15a and a front surface 15b which are completely flush with the visible surface (shown by 16) of the photographic reproduction 12.
  • After sufficient time to allow the mixture to harden and so that the frame 10 can be removed (which time may vary roughly between 10 and 15 minutes) the block 15 is removed from the frame and its hardening/drying is completed for a period varying between 1 and 2 days. This operation can be accelerated by using hot air drying chambers.
  • At the end of the hardening process, the edges 15c of the block 15 are splintered to obtain the final shape of the product.
  • Since the mixture is normally white in colour, it may be advantageous to colour the surface 15b of the block not covered by the photographic reproduction 12 and its edges 15c with an appropriate colouring agent. This colouring is advantageously provided in a non-uniform manner using a swab impregnated with a brown dyestuff which is passed manually over the surface 15b of the block 15. This simulates the colour of the aged plaster which surrounds the fresco. In the case of the splintered edges 15c, it is advantageous, to prevent subsequent cracking of the block 15, to brush a mixture of colouring agent and glue onto these edges.
  • The details of the production and the embodiments of the invention can obviously, without prejudice to the principle of the invention, be widely varied with respect to what has been described and illustrated in the drawings, without thereby departing from the scope of the invention.

Claims (7)

1. A method for the production of reproductions of frescoes or the like, characterized in that it comprises the following operations:
- preparing a photographic reproduction (12) of a fresco, - preparing a plane frame (10) provided with a raised edge (10a) in the manner of a moulding,
- positioning the photographic reproduction (12) face down on this frame (11, 10b, 10),
- cutting the edges (10a) of the photographic reproduction (12),
- preparing a mixture (15) which can be cast and hardened,
- casting this mixture on the frame (11, 10b, 10), - separating the block (15) formed in this way from the frame (10) after a period designed to ensure sufficient hardening, the block (15) having the jagged photographic reproduction (12) on one surface (15b),
- splintering the edges (15c) of the block (15) so as to obtain the appearance of a fragment of a fresco.
2. A method as claimed in claim 1, characterized in that the photographic reproduction (12) is moistened to facilitate both its positioning on the plane frame (11) and the cutting of its edges (12a).
3. A method as claimed in claim 1 or 2, characterized in that a glue (14) is applied to the reverse (13) of the photographic reproduction (12) prior to the casting of the mixture (15).
4. A method as claimed in any one of the preceding claims, characterized in that an appropriate colouring agent intended to simulate the colour of aged plaster is applied in a non-uniform manner to the surface (15b) of the block (15) between the photographic reproduction (12) and the splintered edges (15c).
5. A method as claimed in any one of the preceding claims, characterized in that the mixture (15) comprises plaster powder and sand.
6. A method as claimed in any one of the preceding claims, characterized in that the plane frame has a support structure (10, 10b) for a glass sheet (11) on which the photographic reproduction (12) is positioned face down.
7. Reproduction of a fragment of a fresco obtained in accordance with any one of the preceding claims.
EP90102172A 1989-02-14 1990-02-03 Method for the preparation of reproductions of frescoes or the like and reproductions of fragments of frescoes obtained by this method Expired - Lifetime EP0383125B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8967089A IT8967089A0 (en) 1989-02-14 1989-02-14 PROCEDURE FOR THE CREATION OF COPIES OF FRESCOES OR SIMILAR AND COPY OF FRESCO FRAGMENT OBTAINED THROUGH THIS PROCEDURE
IT6708989 1989-02-14

Publications (3)

Publication Number Publication Date
EP0383125A2 true EP0383125A2 (en) 1990-08-22
EP0383125A3 EP0383125A3 (en) 1991-07-17
EP0383125B1 EP0383125B1 (en) 1994-12-07

Family

ID=11299477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102172A Expired - Lifetime EP0383125B1 (en) 1989-02-14 1990-02-03 Method for the preparation of reproductions of frescoes or the like and reproductions of fragments of frescoes obtained by this method

Country Status (5)

Country Link
EP (1) EP0383125B1 (en)
AT (1) ATE115061T1 (en)
DE (1) DE69014672T2 (en)
ES (1) ES2027943T3 (en)
IT (1) IT8967089A0 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740390A1 (en) * 1995-10-27 1997-04-30 Masson Patrick PROCESS FOR DECORATING NATURAL OR RECONSTITUTED STONE
FR2750647A1 (en) * 1996-07-03 1998-01-09 Sarl L Ubac Method of image transfer onto display panel
WO2005108116A1 (en) * 2004-05-12 2005-11-17 Anthony John Knoll Forming an artwork by casting
WO2006040480A2 (en) * 2004-10-14 2006-04-20 Bancel Francois Method for producing a fresco comprising at least one printed support element based on digital data
CN101504764B (en) * 2009-01-19 2010-11-10 西安交通大学 Ancient architecture oil-decorative painting virtual repairing system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209486A (en) * 1979-02-05 1980-06-24 Ross Wallace D Process of inlaying a design in molded simulated marble
FR2455761A1 (en) * 1979-04-30 1980-11-28 Pieri Osvaldo Encapsulation of photographic or other pictures by injection moulding - to obtain a weatherproof enclosure suitable for external use
CH630009A5 (en) * 1979-05-17 1982-05-28 Georg & Cie Sa Method of applying a reproduction of a work of art to a wooden support
US4728626A (en) * 1985-11-18 1988-03-01 International Business Machines Corporation Method for making planar 3D heterepitaxial semiconductor structures with buried epitaxial silicides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209486A (en) * 1979-02-05 1980-06-24 Ross Wallace D Process of inlaying a design in molded simulated marble
FR2455761A1 (en) * 1979-04-30 1980-11-28 Pieri Osvaldo Encapsulation of photographic or other pictures by injection moulding - to obtain a weatherproof enclosure suitable for external use
CH630009A5 (en) * 1979-05-17 1982-05-28 Georg & Cie Sa Method of applying a reproduction of a work of art to a wooden support
US4728626A (en) * 1985-11-18 1988-03-01 International Business Machines Corporation Method for making planar 3D heterepitaxial semiconductor structures with buried epitaxial silicides

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740390A1 (en) * 1995-10-27 1997-04-30 Masson Patrick PROCESS FOR DECORATING NATURAL OR RECONSTITUTED STONE
EP0770502A1 (en) 1995-10-27 1997-05-02 Masson, Patrick Process for decorating natural or reconstituted stone
FR2750647A1 (en) * 1996-07-03 1998-01-09 Sarl L Ubac Method of image transfer onto display panel
WO2005108116A1 (en) * 2004-05-12 2005-11-17 Anthony John Knoll Forming an artwork by casting
WO2006040480A2 (en) * 2004-10-14 2006-04-20 Bancel Francois Method for producing a fresco comprising at least one printed support element based on digital data
FR2876627A1 (en) * 2004-10-14 2006-04-21 Francois Bancel METHOD FOR PRODUCING A FRESCO COMPRISING AT LEAST ONE PRINTED ELEMENT FROM DIGITAL DATA
WO2006040480A3 (en) * 2004-10-14 2006-06-01 Francois Bancel Method for producing a fresco comprising at least one printed support element based on digital data
CN101504764B (en) * 2009-01-19 2010-11-10 西安交通大学 Ancient architecture oil-decorative painting virtual repairing system and method

Also Published As

Publication number Publication date
EP0383125B1 (en) 1994-12-07
EP0383125A3 (en) 1991-07-17
DE69014672T2 (en) 1995-04-27
ES2027943T1 (en) 1992-07-01
ATE115061T1 (en) 1994-12-15
DE69014672D1 (en) 1995-01-19
IT8967089A0 (en) 1989-02-14
ES2027943T3 (en) 1995-04-01

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