EP2043426A1 - Method of manufacturing a mabe pearl - Google Patents

Method of manufacturing a mabe pearl

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Publication number
EP2043426A1
EP2043426A1 EP07786292A EP07786292A EP2043426A1 EP 2043426 A1 EP2043426 A1 EP 2043426A1 EP 07786292 A EP07786292 A EP 07786292A EP 07786292 A EP07786292 A EP 07786292A EP 2043426 A1 EP2043426 A1 EP 2043426A1
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EP
European Patent Office
Prior art keywords
nucleus
mollusk
relief
carved
shell
Prior art date
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EP07786292A
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German (de)
French (fr)
Inventor
Poemata Raapoto
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Individual
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Individual
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/50—Culture of aquatic animals of shellfish
    • A01K61/54—Culture of aquatic animals of shellfish of bivalves, e.g. oysters or mussels
    • A01K61/56—Culture of aquatic animals of shellfish of bivalves, e.g. oysters or mussels for pearl production
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/50—Culture of aquatic animals of shellfish
    • A01K61/54—Culture of aquatic animals of shellfish of bivalves, e.g. oysters or mussels
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/06—Natural ornaments; Imitations thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

Definitions

  • the method relates to the manipulation of molluscs producing a nacrière layer after insertion of a half-sphere nucleus with elaborate and fine carvings to obtain, after 4 to 6 months of incubation, the formation of a nacrilous protuberance against the inner wall of the shell, imposing shapes and carved reliefs imposed by the nucleus in the regularity of the covering by the nacrière layer and in the respect of the proportions of the sculpture.
  • graft pearls were made in pearl oysters to produce pearls of culture.
  • the technique used to graft pearls is to take a large portion of the coat that secretes mother-of-pearl from a sacrificed oyster, young and healthy. This membrane is cut into thin strips which are then divided into small squares, constituting the grafts.
  • the nucleus (nucleus of flint or hard rock) is implanted in the pearl pocket with a graft. The animal is stimulated, it reacts by surrounding the intruded object with a nacreous layer. Beads produced by the artificial introduction of a nucleus are known as "cultured pearls".
  • the operation consists in partially lifting the coat of the animal and inserting one or more nucleus (on average three) to stick them in each valve.
  • Nucleus molded in a plastic material - usually polycarbonate - can have different sizes and shapes such as round, tear, heart, oval.
  • the mollusk is returned to seawater for 6 to 8 months and its mantle gradually returns to its original position and begins to deposit a nacreous layer around the foreign bodies. The closer the nucleus is to the edge of the shell, the more likely it is to overlap, but less the initial shape of the nucleus will be respected. Thus occurs the formation of mabe in the mollusc.
  • the final operation consists of polishing the mabe and in some cases the pattern carving on the dome of the mabe, a meticulous operation that requires the engraver to be very dexterous given the thinness of the nacreous layer.
  • the same method is used for the introduction of nucleus whose surface is roughly carved, or whose drawings are fixed in relief with a metallized wire on the surface of the nucleus. If the overall shape of the mabe is influenced by the matrix of the nucleus, the irregularity of the overlap on the nucleus dome considerably changes the pattern within the valve. The range of shapes and reliefs is therefore quite broad and one often obtains carved silhouettes with coarse features lacking elaboration and deepening. It is then to the craftsman that the art of later modifying the imperfections by removal of material by using grinding returns.
  • the phenomenon of bio-mineralization (process responsible for the formation of a nacreous layer) operates on mother-of-pearl after the introduction of a semi-stone (or nucleus in half-sphere) finely carved on its domed face.
  • This stone granite, plastic, bone or any other material supported by the animal is inserted into the animal.
  • the sculpture of the nucleus inserted must be scrupulous and respect the rules of depth of the hollows and height of the reliefs to allow the regular covering by the nacreous layer of the nucleus.
  • the domed surface of the nucleus has bas-relief sculptures accompanying the hemispherical shape of the nucleus dome, the carved subject delicately detaching itself from the surface.
  • the sculptures cover the entire nucleus and have more or less prominent ridges, undulations and flat surfaces depending on the subject. For example, on the dome of an oval-shaped nucleus 30 millimeters wide by 40 millimeters long and 5 millimeters high, a pedestal 1 millimeter high is defined, from which the sculpture of a face will begin.
  • the coating in a nacreous layer would be distributed unequally on the nucleus and we would obtain hollow surfaces more or less covered, flat surfaces too thick and convex surfaces too thin.
  • the results thus obtained are very random and hazardous. They often consist of shapeless masses no longer respecting the original design, or covering it irregularly.
  • the nacreous layer progresses from the outer edges of the nucleus to the nucleus center. Its progression is accelerated on the surfaces close to the edge of the shell but is slowed down on the opposite surfaces, towards the inside of the shell, until its total covering varying from 0.5 to 0.8 millimeter of nacrière layer.
  • the following observations are made: - First observation: the nacreous layer progresses more rapidly on the surfaces of the nucleus situated near the edge of the shell of the mollusc; these surfaces are the first covered.
  • the hair of Marianne are oriented and placed closer to the edge of the shell because they have undulations that do not require very detailed sculptures.
  • the whole of the hair of the Madeleine is lowered by 0.2 millimeter because the recovery of this surface is accelerated and more important. And if we had wanted to score more the drawing of the hair, it would have been necessary to also lower each hollow of 0,1 millimeter additional;
  • the breast of the Madeleine is lowered by 0.1 millimeters to raise the fold of her dress.
  • the hollows of the rosé under the chin of the Madeleine will be lowered by 0.1 millimeters to balance the slower recovery of the petals in relief;
  • the space under the chin must be more pronounced, so we will maintain the height of the chin but reduce the area under the chin of 0.1 millimeters; the temples of the Madeleine will be lowered by 0.1 millimeters to highlight her hair.
  • convex surface the necklace, the petals of the flower, the folds of the dress retain their heights. Consequently, whether they are located on the central part or on the edges of the nucleus, the convex surfaces will be the last covered and are not modified. On the other hand, it is the flat or hollow surfaces which surround these reliefs which will have to be reduced from 0,1 millimeters to 0,2 millimeters according to their situation or representation to mark the differences of height.
  • sculptural modifications can be executed by hand with an electric bur or with a laser device capable of modeling a sculpture or remodeling an original sculpture to the nearest tenth of a millimeter.
  • the molluscs are chosen according to two criteria: their overall health and the inner shells producing a nacreous layer and having a sufficiently large and colored color band.
  • a pearl oyster meeting these criteria, is ajar using a spreader and the coat of the animal partially raised.
  • the finely carved stone relief (eg the face of the Madeleine) is gently introduced into the oyster and is stuck under the coat of the animal where the shell has interesting colorful iridescent reflections.
  • the oysters are closed and immersed for a day in a solution of sea water and fruit juice of pure Morinda Citrifolia called "noni".
  • Noni is a plant from the tropics, now presented to the general public as a health food supplement for humans, which we will apply here to the animal species.
  • proxeronine The most important element of "noni” is a large molecule called proxeronine. This molecule, assisted by an enzyme called proxeroninase present in mollusc tissues, will manufacture xeronine by a very complex transformation process. Xeronin combines with the proteins of the mollusc, responsible for the structure of the animal's cells. These proteins will allow the passage of important nutrients in the cells and act as antibodies to support the immune system. Xeronin plays an absolutely vital role in proteins and cells; it has a tremendous capacity to stimulate and strengthen the immune system, among many other functions. Xeronine stimulates the mollusc that accelerates the production of mother-of-pearl and allows its regular fixation on the carved nucleus.
  • xeronine is a very unstable chemical compound that degrades and becomes ineffective when not in use.
  • the mixture submits a dosage of 20 centilitres of fruit juice Morinda Citrifolia per 100 liters of water. sea, but this ratio allows a greater amount of fruit juice of Morinda Citrifolia by the faculty of xeronine to disintegrate naturally.In contrast, reducing this amount of juice would not guarantee success.
  • the closed oyster is finally put back into the sea. After 3 to 6 months, preferably 3 to 4 months, the results are optimal with a success rate of 70% to 80%.
  • the 20% to 30% failure rate is divided between the natural death of oysters, nucleus rejection by oysters at the beginning of the process, and irregular uptake of the nucleus by the nacreous layer.
  • the oyster is out of the water to be treated.
  • the phenomenon of bio-mineralization has operated: the inserted object is covered with a layer of calcium carbonate in the form of aragonite and calcite, a mixture called mother-of-pearl.
  • the stone has reached a thickness ranging between 0.5 and 0.8 millimeters and reveals the hollows and reliefs of the carved stone in respect of proportions.
  • nucleus sculpture parameters to allow a regularity of recovery by the nacreous layer
  • xeronine intake in the animal to stimulate and strengthen the immune system of the mollusc
  • the shaped mabe Disposed of the animal, the shaped mabe is collected and cut with a diamond saw and the original nucleus removed.
  • the mother-of-pearl thus sculpted and shaped, can then be exploited as a jewel or art object.
  • FIG. 1 shows an open oyster and the main elements of the component: shell, pearly zone, coat, pearl pocket,
  • FIG. 2 represents the raised mantle uncovering the pearly zone
  • FIG. 6 is a photo of a carved mabé of the Madeleine in a valve of its oyster shell
  • FIG. 7 is a photo showing the same mabé magnified 10 times and the details of the sculpture that reveal the reliefs and hollows of the face of the Madeleine in the respect of the proportions and iridescent colors of exceptional mother of pearl.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Adornments (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Prevention Of Fouling (AREA)

Abstract

The invention relates to a method of manufacturing a sculpted mabe pearl comprising: - a step of positioning, beneath the cover of a mollusk, a dome-shaped nucleus having a sculpted relief, and - a step of immersing the mollusk provided with its nucleus in sea water for a specific period. The invention is characterized in that the step of positioning is preceded by a step of sculpture modifying the relief of said nucleus, involving reducing the height of the relief on the zone or zones of the nucleus that have planar surfaces or concave surfaces to be accentuated.

Description

Procédé de fabrication d'un mabé Method of manufacturing a mabe
Le procédé concerne la manipulation de mollusques produisant une couche nacrière après insertion d'un nucleus en demi sphère aux sculptures élaborées et fines pour obtenir, après 4 à 6 mois d'incubation, la formation d'une protubérance nacrière contre la paroi interne de la coquille, aux formes imposées et aux reliefs sculptés imposés par le nucleus dans la régularité du recouvrement par la couche nacrière et dans le respect des proportions de la sculpture.The method relates to the manipulation of molluscs producing a nacrière layer after insertion of a half-sphere nucleus with elaborate and fine carvings to obtain, after 4 to 6 months of incubation, the formation of a nacrilous protuberance against the inner wall of the shell, imposing shapes and carved reliefs imposed by the nucleus in the regularity of the covering by the nacrière layer and in the respect of the proportions of the sculpture.
On procédait jusqu'alors à des greffes dans les huîtres perlières pour produire des perles de culture. La technique utilisée pour greffer des perles consiste à prélever, sur une huître sacrifiée, jeune et saine, une importante partie du manteau qui sécrète la nacre. Cette membrane est découpée en fines lamelles qui sont ensuite divisées en petits carrés, constituant les greffons. Le nucleus (noyau de silex ou de roche dure) est implanté dans la poche perlière avec un greffon. L'animal est stimulé, il réagit en entourant l'objet intrus d'une couche nacrière. Les perles produites par l'introduction artificielle d'un nucleus sont connues sous la dénomination « de perles de culture ». II existe également des demi perles ou perles généralement connues sous le nom de « mabé » et qui sont plus exactement « des perles composées ». La" partie supérieure du mabé est une protubérance obtenue en fixant à l'intérieur des coquilles du mollusque (et non plus dans le corps du mollusque), des nucleus en demi sphère présentant une face plane et un dôme à la surface lisse et sans relief qui ne soit pas trop haut pour permettre la fermeture des valves après l'intervention.Until then grafting was done in pearl oysters to produce pearls of culture. The technique used to graft pearls is to take a large portion of the coat that secretes mother-of-pearl from a sacrificed oyster, young and healthy. This membrane is cut into thin strips which are then divided into small squares, constituting the grafts. The nucleus (nucleus of flint or hard rock) is implanted in the pearl pocket with a graft. The animal is stimulated, it reacts by surrounding the intruded object with a nacreous layer. Beads produced by the artificial introduction of a nucleus are known as "cultured pearls". There are also half pearls or pearls generally known under the name of "mabe" and which are more exactly "compound pearls". The " upper part of the mabe is a protuberance obtained by fixing inside the shells of the mollusk (and no longer in the body of the mollusk), nucleus in half-sphere with a plane face and a dome with a smooth surface and without relief which is not too high to allow the valves to close after the procedure.
L'opération consiste à soulever partiellement le manteau de l'animal et à y insérer un ou plusieurs nucleus (en moyenne trois) pour les coller dans chaque valve. Les nucleus, moulés dans une matière plastique - en général du polycarbonate - peuvent avoir différentes tailles et différentes formes telles que rond, larme, coeur, ovale. Après avoir inséré les nucleus, le mollusque est remis dans l'eau de mer pour une durée de 6 à 8 mois et son manteau revient graduellement à sa position originelle et commence à déposer une couche nacrière autour des corps étrangers. Plus le nucleus est proche de la bordure de la coquille, plus son recouvrement est susceptible d'être coloré mais moins la forme initiale du nucleus sera respectée. Ainsi se produit la formation de mabé dans le mollusque. L'opération finale consiste au lustrage du mabé et dans certains cas à la sculpture de motifs sur le dôme du mabé, opération méticuleuse qui exige du graveur une grande dextérité compte tenu de la minceur de la couche nacrière. Le même procédé est utilisé pour l'introduction de nucleus dont la surface est grossièrement sculptée, ou dont les dessins sont fixés en relief avec un fil métallisé sur la surface du nucleus. Si la forme globale du mabé est influencée par la matrice que constitue le nucleus, l'irrégularité du recouvrement sur le dôme du nucleus modifie considérablement le dessin au sein de la valve. L'éventail des formes et des reliefs est donc assez large et l'on obtient bien souvent des silhouettes sculptées aux traits grossiers manquant d'élaboration et d'approfondissement. C'est alors à l'artisan que revient l'art de modifier ultérieurement les imperfections par enlèvement de matière en utilisant le meulage.The operation consists in partially lifting the coat of the animal and inserting one or more nucleus (on average three) to stick them in each valve. Nucleus, molded in a plastic material - usually polycarbonate - can have different sizes and shapes such as round, tear, heart, oval. After inserting the nucleus, the mollusk is returned to seawater for 6 to 8 months and its mantle gradually returns to its original position and begins to deposit a nacreous layer around the foreign bodies. The closer the nucleus is to the edge of the shell, the more likely it is to overlap, but less the initial shape of the nucleus will be respected. Thus occurs the formation of mabe in the mollusc. The final operation consists of polishing the mabe and in some cases the pattern carving on the dome of the mabe, a meticulous operation that requires the engraver to be very dexterous given the thinness of the nacreous layer. The same method is used for the introduction of nucleus whose surface is roughly carved, or whose drawings are fixed in relief with a metallized wire on the surface of the nucleus. If the overall shape of the mabe is influenced by the matrix of the nucleus, the irregularity of the overlap on the nucleus dome considerably changes the pattern within the valve. The range of shapes and reliefs is therefore quite broad and one often obtains carved silhouettes with coarse features lacking elaboration and deepening. It is then to the craftsman that the art of later modifying the imperfections by removal of material by using grinding returns.
Le procédé, aujourd'hui soumis, autorise cet aspect sculpté et élaboré de la nacre, quelque soit la finesse de la sculpture, sans intervention ultérieure de l'homme sur le mabé, et dans le respect des proportions de la sculpture.The process, now submitted, authorizes this carved and elaborate aspect of the mother-of-pearl, whatever the finesse of the sculpture, without further intervention of the man on the mabe, and in the respect of the proportions of the sculpture.
Le phénomène de bio minéralisation (processus responsable de la formation d'une couche nacrière) opère sur la nacre après l'introduction d'une demi pierre (ou nucleus en demi sphère) finement sculptée sur sa face en dôme. Cette pierre en granit, en plastique, en os ou tout autre matériau supporté par l'animal est insérée dans l'animal. La sculpture du nucleus inséré doit être scrupuleuse et respecter des règles de profondeur des creux et de hauteur des reliefs pour permettre le recouvrement régulier par la couche nacrière du nucleus. La surface en dôme du nucleus présente des sculptures en bas- relief accompagnant la forme hémisphérique du dôme du nucleus, le sujet sculpté se détachant délicatement de la surface. Les sculptures couvrent tout le nucleus et présentent des arêtes plus ou moins saillantes, des ondulations et des surfaces planes suivant le sujet. Par exemple, sur le dôme d'un nucleus de forme ovale de 30 millimètres de large par 40 millimètres de long et 5 millimètres de hauteur, on définit un socle de 1 millimètre de hauteur d'où va commencer la sculpture d'un visage.The phenomenon of bio-mineralization (process responsible for the formation of a nacreous layer) operates on mother-of-pearl after the introduction of a semi-stone (or nucleus in half-sphere) finely carved on its domed face. This stone granite, plastic, bone or any other material supported by the animal is inserted into the animal. The sculpture of the nucleus inserted must be scrupulous and respect the rules of depth of the hollows and height of the reliefs to allow the regular covering by the nacreous layer of the nucleus. The domed surface of the nucleus has bas-relief sculptures accompanying the hemispherical shape of the nucleus dome, the carved subject delicately detaching itself from the surface. The sculptures cover the entire nucleus and have more or less prominent ridges, undulations and flat surfaces depending on the subject. For example, on the dome of an oval-shaped nucleus 30 millimeters wide by 40 millimeters long and 5 millimeters high, a pedestal 1 millimeter high is defined, from which the sculpture of a face will begin.
Si ce visage sculpté sur le dôme, dans le respect des proportions, était introduit tel quel dans l'animal, le recouvrement en couche nacrière se répartirait de manière inégale sur le nucleus et nous obtiendrions des surfaces creuses plus ou moins couvertes, des surfaces planes trop épaisses et des surfaces convexes trop fines. Les résultats ainsi obtenus sont très aléatoires et hasardeux. Ils consistent très souvent en des masses informes ne respectant plus le dessin d'origine, ou le recouvrant de manière irrégulière. La couche nacrière progresse des bords externes du nucleus vers le centre du nucleus. Sa progression est accélérée sur les surfaces proches du bord de la coquille mais est ralentie sur les surfaces opposées, vers l'intérieur de la coquille, jusqu'à son recouvrement total variant de 0,5 à 0,8 millimètre de couche nacrière. On fait ainsi les constats suivants : - Premier constat : la couche nacrière progresse plus rapidement sur les surfaces du nucleus situées à proximité du bord de la coquille du mollusque ; ces surfaces sont les premières recouvertes.If this face carved on the dome, in the respect of the proportions, was introduced as such into the animal, the coating in a nacreous layer would be distributed unequally on the nucleus and we would obtain hollow surfaces more or less covered, flat surfaces too thick and convex surfaces too thin. The results thus obtained are very random and hazardous. They often consist of shapeless masses no longer respecting the original design, or covering it irregularly. The nacreous layer progresses from the outer edges of the nucleus to the nucleus center. Its progression is accelerated on the surfaces close to the edge of the shell but is slowed down on the opposite surfaces, towards the inside of the shell, until its total covering varying from 0.5 to 0.8 millimeter of nacrière layer. The following observations are made: - First observation: the nacreous layer progresses more rapidly on the surfaces of the nucleus situated near the edge of the shell of the mollusc; these surfaces are the first covered.
- Deuxième constat : les autres surfaces situées sur les bords du nucleus, proches de la coquille du mollusque, constituent le socle du dôme ; plus basses, elles seront donc les suivantes recouvertes de nacre ;Second observation: the other surfaces situated on the edges of the nucleus, close to the shell of the mollusc, constitute the base of the dome; lower, they will therefore be the following covered with mother-of-pearl;
- Troisième constat : la diffusion de couche nacrière est plus rapide sur des surfaces planes c'est-à-dire des surfaces sans détails ;- Third observation: the diffusion of nacrière layer is faster on flat surfaces that is to say surfaces without details;
- Quatrième constat : plus les surfaces sont hautes, moins vite se produit le recouvrement en nacre; - Cinquième constat : les surfaces situées dans la partie centrale, qui concentrent également le plus de reliefs et de creux sur le nucleus, sont moins vite recouvertes.- Fourth observation: the higher the surfaces, the slower the mother-of-pearl covering occurs; - Fifth observation: the surfaces located in the central part, which also concentrate the most reliefs and hollows on the nucleus, are less quickly covered.
Sur la base de ces constats, il devient alors nécessaire de prononcer certains aspects de la sculpture sur le dôme, sculpture qui doit respecter rigoureusement des hauteurs et profondeurs prenant en considération ces paramètres.On the basis of these observations, it becomes necessary to pronounce certain aspects of the sculpture on the dome, a sculpture which must respect rigorously heights and depths taking into account these parameters.
En exemple, pour obtenir un recouvrement régulier du visage de la Madeleine, on reproduit les traits de son visage dans le respect des proportions sur un dôme aux formats requis. Voici les modifications apportées sur le moule d'origine au niveau :As an example, to obtain a regular covering of the face of the Madeleine, one reproduces the features of his face in the respect of the proportions on a dome in the required formats. Here are the changes made on the original mold level:
- de la surface du nucleus située au plus près du bord de la coquille du mollusque : les cheveux de la Marianne sont orientés et placés au plus près du bord de la coquille car ils présentent des ondulations qui ne nécessitent pas de sculptures très détaillées. L'ensemble de la chevelure de la Madeleine est descendu de 0,2 millimètre car le recouvrement de cette surface est accéléré et plus important. Et si on avait voulu marquer davantage le dessin des cheveux, il aurait fallu descendre aussi chaque creux de 0,1 millimètre supplémentaire ;- the surface of the nucleus located closer to the edge of the shell of the mollusc: the hair of Marianne are oriented and placed closer to the edge of the shell because they have undulations that do not require very detailed sculptures. The whole of the hair of the Madeleine is lowered by 0.2 millimeter because the recovery of this surface is accelerated and more important. And if we had wanted to score more the drawing of the hair, it would have been necessary to also lower each hollow of 0,1 millimeter additional;
- des surfaces situées sur les bords du nucleus, proches de la coquille du mollusque : le socle entourant le visage sculpté sera vite recouvert de couche nacrière ; nous choisissons de maintenir sa hauteur.- surfaces located on the edges of the nucleus, close to the shell of the mollusc: the base surrounding the carved face will soon be covered with a nacreous layer; we choose to maintain its height.
- d'une surface plane sur le bord du nucleus : la poitrine de la Madeleine est abaissée de 0,1 millimètre pour relever le pli de sa robe.- a flat surface on the edge of the nucleus: the breast of the Madeleine is lowered by 0.1 millimeters to raise the fold of her dress.
- d'une surface plane centrale : la surface du cou et de la nuque est descendue de 0,1 millimètre pour marquer la distinction avec le collier et l'épaule légèrement plus bombée ;- a central flat surface: the surface of the neck and the neck fell by 0.1 millimeters to mark the distinction with the collar and shoulder slightly more convex;
- d'une surface creuse sur le bord du nucleus : les creux de la rosé située sous le menton de la Madeleine seront abaissés de 0,1 millimètre pour équilibrer le recouvrement plus lent des pétales en relief ;- a hollow surface on the edge of the nucleus: the hollows of the rosé under the chin of the Madeleine will be lowered by 0.1 millimeters to balance the slower recovery of the petals in relief;
- d'une surface creuse centrale : l'espace sous le menton doit être plus prononcé, on va donc maintenir la hauteur du menton mais réduire la surface située sous le menton de 0,1 millimètres ; les tempes de la Madeleine seront abaissées de 0,1 millimètres pour mettre en relief ses cheveux.- A central hollow surface: the space under the chin must be more pronounced, so we will maintain the height of the chin but reduce the area under the chin of 0.1 millimeters; the temples of the Madeleine will be lowered by 0.1 millimeters to highlight her hair.
- d'une surface convexe : le collier, les pétales de la fleur, les plis de la robe conservent leurs hauteurs. Par conséquent, qu'elles soient situées sur la partie centrale ou sur les bords du nucleus, les surfaces convexes seront les dernières recouvertes et ne sont pas modifiées. En revanche, ce sont les surfaces planes ou creuses qui entourent ces reliefs qui devront être réduites de 0,1 millimètre à 0,2 millimètre selon leur situation ou représentation pour marquer les différences de hauteur.- a convex surface: the necklace, the petals of the flower, the folds of the dress retain their heights. Consequently, whether they are located on the central part or on the edges of the nucleus, the convex surfaces will be the last covered and are not modified. On the other hand, it is the flat or hollow surfaces which surround these reliefs which will have to be reduced from 0,1 millimeters to 0,2 millimeters according to their situation or representation to mark the differences of height.
Ces modifications de sculpture peuvent être exécutées à la main avec une fraise électrique ou grâce à un appareil à laser capable de modeler une sculpture ou de remodeler une sculpture originale au dixième de millimètre près.These sculptural modifications can be executed by hand with an electric bur or with a laser device capable of modeling a sculpture or remodeling an original sculpture to the nearest tenth of a millimeter.
Il est important de fixer précisément ces règles de sculpture car chaque dixième de millimètre compte dans le mollusque. L'oeil avisé du spécialiste saura, aux vues de ces données, définir les spécificités de chaque motif.It is important to precisely set these rules of sculpture because every tenth of a millimeter counts in the mollusc. The expert eye of the specialist will know, in view of these data, define the specificities of each pattern.
Les mollusques sont choisis en fonction de deux critères : leur état sanitaire global et les coquilles internes produisant une couche nacrière et présentant une bande de couleur suffisamment large et colorée. Par exemple une huître perlière, répondant à ces critères, est entrouverte à l'aide d'un écarteur et le manteau de l'animal partiellement soulevé. La pierre finement sculptée en relief (ex : le visage de la Madeleine) est délicatement introduite dans l'huître et est collée sous le manteau de l'animal à l'endroit où la coquille présente des reflets irisés colorés intéressants. Les huîtres sont refermées et plongées, pendant un jour, dans une solution d'eau de mer et de jus du fruit du Morinda Citrifolia pur appelé « noni ». Le noni est une plante des régions tropicales, aujourd'hui présentée au grand public comme supplément alimentaire de santé pour l'homme, que nous appliquerons ici à l'espèce animale. L'élément le plus important du « noni » est une grosse molécule appelée proxéronine. Cette molécule, assistée d'une enzyme appelée proxéroninase présente dans les tissus du mollusque, va fabriquer la xéronine par un procédé de transformation très complexe. La xéronine se combine aux protéines du mollusque, responsables de la structure des cellules de l'animal. Ces protéines vont permettre le passage des nutriments importants dans les cellules et agir comme anticorps pour soutenir le système immunitaire. La xéronine tient ainsi un rôle absolument vital au niveau des protéines et des cellules ; elle possède une énorme capacité à stimuler et à renforcer le système immunitaire, parmi d'autres nombreuses fonctions. La xéronine stimule le mollusque qui accélère la production de nacre et permet sa fixation régulière sur le nucleus sculpté. L'animal utilise cet élément selon ses besoins et ce qui n'est pas utilisé est tout simplement éliminé. En effet, la xéronine est un composé chimique très instable" qui se dégrade et devient sans effet lorsqu'elle n'est pas utilisée. Le mélange soumet un dosage de 20 centilitres de jus du fruit du Morinda Citrifolia pour 100 litres d'eau de mer ; mais ce rapport autorise une plus grande quantité de jus du fruit du Morinda Citrifolia par la faculté de la xéronine de se désintégrer naturellement. En revanche, réduire cette quantité de jus ne garantirait pas la réussite.The molluscs are chosen according to two criteria: their overall health and the inner shells producing a nacreous layer and having a sufficiently large and colored color band. For example a pearl oyster, meeting these criteria, is ajar using a spreader and the coat of the animal partially raised. The finely carved stone relief (eg the face of the Madeleine) is gently introduced into the oyster and is stuck under the coat of the animal where the shell has interesting colorful iridescent reflections. The oysters are closed and immersed for a day in a solution of sea water and fruit juice of pure Morinda Citrifolia called "noni". Noni is a plant from the tropics, now presented to the general public as a health food supplement for humans, which we will apply here to the animal species. The most important element of "noni" is a large molecule called proxeronine. This molecule, assisted by an enzyme called proxeroninase present in mollusc tissues, will manufacture xeronine by a very complex transformation process. Xeronin combines with the proteins of the mollusc, responsible for the structure of the animal's cells. These proteins will allow the passage of important nutrients in the cells and act as antibodies to support the immune system. Xeronin plays an absolutely vital role in proteins and cells; it has a tremendous capacity to stimulate and strengthen the immune system, among many other functions. Xeronine stimulates the mollusc that accelerates the production of mother-of-pearl and allows its regular fixation on the carved nucleus. The animal uses this element according to its needs and what is not used is simply eliminated. Indeed, xeronine is a very unstable chemical compound that degrades and becomes ineffective when not in use.The mixture submits a dosage of 20 centilitres of fruit juice Morinda Citrifolia per 100 liters of water. sea, but this ratio allows a greater amount of fruit juice of Morinda Citrifolia by the faculty of xeronine to disintegrate naturally.In contrast, reducing this amount of juice would not guarantee success.
L'huître refermée est enfin remise à la mer. Au bout de trois à six mois, de préférence de 3 à 4 mois, les résultats sont optimaux avec un taux de réussite de 70% à 80%. Les 20% à 30% de taux d'échec sont répartis entre la mort naturelle d'huîtres, le rejet du nucleus par des huîtres en début de processus et le recouvrement irrégulier du nucleus par la couche nacrière.The closed oyster is finally put back into the sea. After 3 to 6 months, preferably 3 to 4 months, the results are optimal with a success rate of 70% to 80%. The 20% to 30% failure rate is divided between the natural death of oysters, nucleus rejection by oysters at the beginning of the process, and irregular uptake of the nucleus by the nacreous layer.
L'huître est sortie de l'eau pour être traitée. Le phénomène de bio minéralisation a opéré : l'objet inséré est recouvert d'une couche de carbonate de calcium sous la forme d'aragonite et de calcite, mélange appelé nacre. La pierre a atteint un recouvrement d'une épaisseur variant entre 0,5 et 0,8 millimètre et révèle les creux et reliefs de la pierre sculptée dans le respect des proportions.The oyster is out of the water to be treated. The phenomenon of bio-mineralization has operated: the inserted object is covered with a layer of calcium carbonate in the form of aragonite and calcite, a mixture called mother-of-pearl. The stone has reached a thickness ranging between 0.5 and 0.8 millimeters and reveals the hollows and reliefs of the carved stone in respect of proportions.
En conclusion, le respect des paramètres de sculpture du nucleus (pour permettre une régularité de recouvrement par la couche nacrière) combiné à l'apport en xéronine dans l'animal (pour stimuler et renforcer le système immunitaire du mollusque) permettront la production de mabé finement sculpté dans le respect des proportions.In conclusion, the respect of the nucleus sculpture parameters (to allow a regularity of recovery by the nacreous layer) combined with the xeronine intake in the animal (to stimulate and strengthen the immune system of the mollusc) will allow the production of mabe finely carved in respect of the proportions.
Débarrassé de l'animal, le mabé façonné est recueilli et découpé à l'aide d'une scie diamantée et le nucleus initial retiré. La nacre, ainsi sculptée et façonnée, peut alors être exploitée en tant que bijou ou objet d'art.Disposed of the animal, the shaped mabe is collected and cut with a diamond saw and the original nucleus removed. The mother-of-pearl, thus sculpted and shaped, can then be exploited as a jewel or art object.
Les figures en annexe illustrent les différentes étapes d'insertion et de recouvrement du nucleus sculpté (Figs.l à 5) et la sculpture de la Madeleine recouverte de nacre (Figs. 6 et 7):The figures in the appendix illustrate the various stages of insertion and recovery of the carved nucleus (Figs., 1 to 5) and the sculpture of the Madeleine covered with mother-of-pearl (Figs 6 and 7):
- la figure 1 représente une huître ouverte et les principaux éléments la composant : coquille, zone nacrée, manteau, poche perlière,- Figure 1 shows an open oyster and the main elements of the component: shell, pearly zone, coat, pearl pocket,
- la figure 2 représente le manteau soulevé découvrant la zone nacrée,FIG. 2 represents the raised mantle uncovering the pearly zone,
- sur la figure 3, un nucleus sculpté est introduit délicatement et collé sous le manteau, - la figure 4 illustre la nacre après six mois : la couche nacrière a recouvert la pierre sculptée en respectant ses formes et ses reliefs dans le respect des proportions,- In Figure 3, a carved nucleus is introduced gently and glued under the mantle, - Figure 4 illustrates mother-of-pearl after six months: the mother-of-pearl layer covered the carved stone respecting its shapes and its reliefs in the respect of the proportions,
- l'animal a été ôté sur la figure 5 et la nacre sculptée peut être découpée.- The animal has been removed in Figure 5 and the mother-of-pearl can be carved.
- la figure 6 est une photo d'un mabé sculpté de la Madeleine dans une valve de sa coquille d'huître,- Figure 6 is a photo of a carved mabé of the Madeleine in a valve of its oyster shell,
- la figure 7 est une photo représentant le même mabé grossi 10 fois et les détails de la sculpture qui révèlent les reliefs et creux du visage de la Madeleine dans le respect des proportions et aux couleurs irisées exceptionnelles de la nacre. - Figure 7 is a photo showing the same mabé magnified 10 times and the details of the sculpture that reveal the reliefs and hollows of the face of the Madeleine in the respect of the proportions and iridescent colors of exceptional mother of pearl.

Claims

REVENDICATIONS
1) Procédé de fabrication d'un mabé sculpté comprenant :1) A method of manufacturing a carved mabe comprising:
- une étape de positionnement, sous le manteau d'un mollusque, d'un nucleus en forme de dôme présentant un relief sculpté,a step of positioning, under the mantle of a mollusc, a domed nucleus having a carved relief,
- une étape d'immersion du mollusque pourvu de son nucleus dans l'eau de mer pendant une période déterminée, caractérisé en ce que l'étape de positionnement est précédée en outre par une étape de modification de sculpture du relief dudit nucleus, consistant à réduire la hauteur du relief sur la ou les zones du nucleus qui présentent des surfaces planes ou des surfaces creuses à prononcer.a step of immersing the mollusk provided with its nucleus in seawater for a determined period of time, characterized in that the positioning step is further preceded by a step of modifying the relief of said nucleus, consisting of reduce the height of the relief on the nucleus zone (s) with flat surfaces or hollow surfaces to be pronounced.
2) Procédé selon la revendication 1, caractérisé en ce que l'étape de positionnement consiste à positionner le nucleus dans le mollusque entre le manteau du mollusque et la coquille à un endroit de la coquille qui présente des reflets irisés colorés.2) A method according to claim 1, characterized in that the positioning step is to position the nucleus in the mollusk between the shell of the mollusk and the shell at a place of the shell which has colored iridescent reflections.
3) Procédé selon la revendication 1 ou 2, caractérisé en ce que l'étape d'immersion dans l'eau de mer dure de 3 à 6 mois, de préférence de 3 à 4 mois.3) Process according to claim 1 or 2, characterized in that the immersing step in seawater lasts from 3 to 6 months, preferably from 3 to 4 months.
4) Procédé selon l'une des revendications précédentes, caractérisé en ce que l'étape d'immersion du mollusque pourvu de son nucleus dans l'eau de mer est précédée par une étape d'immersion dans une solution stimulante de jus du fruit Moήnda Citrifolia et d'eau de mer.4) Method according to one of the preceding claims, characterized in that the step of immersing the mollusk provided with its nucleus in sea water is preceded by a step of immersion in a stimulating solution of fruit juice Moήnda Citrifolia and seawater.
5) Procédé selon la revendication 4, caractérisé en ce que la solution stimulante se compose d'au moins 20 centilitres de jus de Morinda Citrifolia pour 100 litres d'eau de mer.5) Process according to claim 4, characterized in that the stimulating solution consists of at least 20 centilitres of Morinda Citrifolia juice per 100 liters of seawater.
6) Procédé selon l'une des revendications 4 ou 5, caractérisé en ce que l'étape d'immersion dans ladite solution dure 1 jour. 6) Method according to one of claims 4 or 5, characterized in that the immersing step in said solution lasts 1 day.
EP07786292A 2006-07-25 2007-07-24 Method of manufacturing a mabe pearl Withdrawn EP2043426A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0609740A FR2904188B1 (en) 2006-07-25 2006-07-25 METHOD FOR MOLLUSCULUS TO PRODUCE A NACRIERE LAYER ON NUCLEUS WITH FINELY SCULPTED RELIEF TO OBTAIN NACRIERE PROTUBERANCE IN RESPECT OF PROPORTIONS
PCT/EP2007/006565 WO2008012065A1 (en) 2006-07-25 2007-07-24 Method of manufacturing a mabe pearl

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CN101494973A (en) 2009-07-29
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AU2007278482A1 (en) 2008-01-31

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