FR2708265A1 - Process for the production of a coating on objects made of terracotta, plaster or faience - Google Patents

Process for the production of a coating on objects made of terracotta, plaster or faience Download PDF

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Publication number
FR2708265A1
FR2708265A1 FR9309319A FR9309319A FR2708265A1 FR 2708265 A1 FR2708265 A1 FR 2708265A1 FR 9309319 A FR9309319 A FR 9309319A FR 9309319 A FR9309319 A FR 9309319A FR 2708265 A1 FR2708265 A1 FR 2708265A1
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FR
France
Prior art keywords
phase
plaster
faience
treatment
powder
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.)
Withdrawn
Application number
FR9309319A
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French (fr)
Inventor
Bretones Lucien
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.)
REVECOLOR ETS
Original Assignee
REVECOLOR ETS
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 REVECOLOR ETS filed Critical REVECOLOR ETS
Priority to FR9309319A priority Critical patent/FR2708265A1/en
Publication of FR2708265A1 publication Critical patent/FR2708265A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
    • C04B41/4568—Electrostatic processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation

Abstract

Process for the production of a coating on objects made of terracotta, plaster or faience, with a view to modifying their surface appearance in a decorative manner while increasing their resistance especially to impacts and to inclement weather. It includes the following three successive stages: - 1st stage: treatment of the surface of the object including at least one of the following operations: degreasing, sanding, chemical conversion, wiping or brushing - 2nd stage: electrostatic application of a heat-curable powder after an optional preheating of the object - 3rd stage: polymerisation by baking at a temperature of between 140 and 200 DEG C for a period of 5 to 30 min after the object has been brought to temperature.

Description

La présente invention a pour objet un procédé pour la réalisation d'unThe subject of the present invention is a method for producing a

revêtementi sur des objets en terre cuite, en plâtre ou en faïience, en vue de modifier leur aspect de surface de façon décorative tout en augmentant leur résistan-a-ce, notamment aux chocs et aux intempries. Le procéde selon l invention est particulièrement applicable à La réalisation de pots de fleurs de couleurs variées, t la surface présente des aspects également variées, pouvant être risse, granitée,  coated on earthenware, plaster or earthenware, with a view to modifying their surface appearance in a decorative manner while increasing their resistance, in particular to shocks and weathering. The process according to the invention is particularly applicable to the production of flower pots of various colors, the surface has aspects that are also varied, which can be risky, granite,

0 cra-auelée, marbrée, amo-uchettée ou autre.  0 cra-auelée, marbled, amo-uchettée or other.

Le procédé selon i invention se caractérise esse4ntiellement en ce qu'il comprend les trois phases successives ci-après: - lre phase: traitement de la surface de l'objet, suivant sa nature, ledit traitement comprenant au moins 'une des opérations suivantes: - dégraissage - sablage - conversion chimique - essuyage ou brossage - 2ème phLase application électrostatique d'une poudre  The process according to the invention is essentially characterized in that it comprises the following three successive phases: - 1st phase: treatment of the surface of the object, according to its nature, said treatment comprising at least one of the following operations: - degreasing - sanding - chemical conversion - wiping or brushing - 2nd phLase electrostatic application of a powder

the-iodurcissable aprèes un éventuel préchauffage de l'objet.  the-iosurcissable after a possible preheating of the object.

- 3àmea phLasé polymérisati-Lo par cuisson à une température comprise entre 14n1U et 200 C, pendant une durée de 5 a î30mn  - 3a melted polymerization by baking at a temperature between 14n1U and 200 C, for a period of 5 to 13 minutes

après mise en température de i'objet.  after heating of the object.

Le traitement de surface qui constitue la première ph=ase du procédé selon ilinvention peut consister en un dégraissage effectué l'aide d'un solvant approprié  The surface treatment which constitutes the first method of the process according to the invention may consist of a degreasing carried out using a suitable solvent.

ou de vapeur d'eau.or water vapor.

Ledit t--ra Eitementde surface peut également consister en un sablage réalisé par projection de sable sous pression. Une telle op- ration est utilisée pour conférer à la surf'ace une certaine porosité et est particulièrement  Said surface treatment may also consist of sanding carried out by sand blasting under pressure. Such an operation is used to give the surface a certain porosity and is particularly

adaptée aux objets en faience.adapted to faience objects.

Le traitement de surface peut aussi consister en une conversion chimique par iiersion de L objet dans un produit alcalin destnLe à attaquer qment certains de ses composants, et elle est mise en oeuvre pour créer une microporosité de sa surface favorisant l'adhérence de la  The surface treatment may also consist of a chemical conversion by ionizing the object in an alkaline product intended to attack some of its components, and it is used to create a microporosity of its surface which promotes adhesion of the surface.

poudre thermodurcissable.thermosetting powder.

Le traitement de surface peut enfin consister en un essuyage ou un brossage destiné à le débarrasser de la poussière provenant par exemple d'un traitement de  The surface treatment may finally consist of wiping or brushing to rid it of dust resulting for example from a treatment of

conversion chimique.chemical conversion.

Comme il a déjà été dit, ce traitement de  As has already been said, this treatment of

surface peut associer au moins deux des opeérations ci-  surface may involve at least two of the operations listed below.

dessus, en fonction d'une part de la nature de la surface et d'autre part du résultat que l'on désire obtenir concezrnant l'aspect final de ladl-tLe surface, lisse, granité, craquelé  above, depending partly on the nature of the surface and on the other hand the result that one wishes to obtain concezrnant the final appearance of ladl-tLe surface, smooth, granite, cracked

ou autre.Or other.

L'applicatiLon é ictrostatique d' une poudre thermodurcissable ui constitue la deuxième phase du procédé salon L'invntion peut être réalisée par pistolage ou par trempage en bain faluidisé, selon des techniques connues en  The icostatic application of a thermosetting powder which constitutes the second phase of the living-room process. The invention may be carried out by spraying or by immersion in a falsified bath, according to techniques known in the art.

soi qui ne seront donc pas décrites en détail.  which will not be described in detail.

L'application de la poudre peut se faire en mono-couche ou en t multi' -couches, selon le résultat à 2- atteindre, chaque couche ayant une épaisseur comprise entre  The application of the powder can be done in single-layer or in multi-layer, depending on the result to be achieved, each layer having a thickness between

environ 80 et 100 microns.about 80 and 100 microns.

iLa poudre mise en oeuvre peut être n'importe quelle poudre Cà base de ré'sne Lrheodaurcisa-D'e teile a qu'une résine époxy, polyester, 'époxy-plyes ter, polyureéthan, rilsan ou autre, convenabtlemeintie additionnée ou  The powder used may be any resin-based powder such as epoxy, polyester, epoxy-plyester, polyurethane, rilsan or other resin, suitable for addition or

non di'un catalyseur de polynérisation.  not a polynerization catalyst.

Séeon la nature, les poudres mises en oeuvre dans cette deuxiième phase du procédé selon l'invention permettent de conférer au support un aspect transparent ou  According to the nature, the powders used in this second phase of the process according to the invention make it possible to give the support a transparent appearance or

3J coloré, m-at, satiné ou b-rill-ant.  3J colored, m-at, satin or b-rill-ant.

Si l'on veut conférer à la surface un aspect particulier, comme par exemiple unl aspect marbré ou craquelé, on réalise des projections successives soit de poudre neutre soit de poudre de mmeaiie polarité ou de polarité intrversee,  If it is desired to give the surface a particular appearance, such as for example a marbled or cracked appearance, successive projections are made of neutral powder or of powder of a polarity or of an introverted polarity,

selon des techniques connues en soi.  according to techniques known per se.

Onr peut également avoir rec-uurs, en vue de conférer à la surface un aspect miouciheté ou rayé, à un soufflage d'air, un brossage ou une projection de vapeur dI'1eau.  They may also have recu uurs, in order to impart to the surface an aspect miouciheté or striped, air blowing, brushing or projection of water vapor.

a ena.a ena.

La polymérisation par cuisson qui constitue ia troisième phase du procédé selon l'invention peut être réalisée par transfert de l'obJet dans une étuve chauffée à une te,-teérae - de à*0 Cu, pendant une durée de 5 à  The baking polymerization which constitutes the third stage of the process according to the invention can be carried out by transfer of the object into an oven heated to a temperature of from 0.degree.

mn après mise en température de l'ob-jet.  mn after warming up the ob-jet.

Ainsi, la durée de la cuisson peut être d'envi=ron 10 mn à 180 , tandis que la mise en température de v0 l'objet pourra varier de quelques instants à plusieurs  Thus, the duration of the cooking may be about 10 minutes to 180, while the temperature of v0 the object may vary from a few moments to several

dizaines de minutes ean fonction de son épaisseur.  dozens of minutes ean function of its thickness.

A la sortie de l'étuve, après refroidissement, l'objet pourra être laissé tel quel ou décoré à la peinture  At the exit of the oven, after cooling, the object can be left as is or decorated with paint

ou de toute autre matière.or any other matter.

Le procédé selon l'invention permet, ainsi qu'il a été dit, de réaliser un revêtement décoratif et résistant sur des objets en terre cuite, en plâtre ou en f a enc, ledit rzevêtement pouvant en outre prendre l'aspect du cuir ou un aspect métallisé, en foncition de La nature de lia ou dIes poudres utilisées et du traitement de surface mis en oeuvre-.  The method according to the invention makes it possible, as has been said, to produce a decorative and resistant coating on earthenware objects, plaster or fa enc, said rzeavment can also take the appearance of leather or a metallized appearance, depending on the nature of IIa or powders used and surface treatment implemented.

Claims (1)

REVENDICATiONSclaims 1>- Procédé pour la réalisation d'un revêtement sur des oets en terre cuite, en plâtre ou en fai'ence, en ae de iodif er leur aspect de surface de façon décorative tant en augmentant leur résistance, notamment aux chocs et aux intempereies, caractérisé en ce qu'il comprend les trois phases successives ci-après: - 'ère phase traitement de la surface de l'oibjet, suivant sa nature, ledit traitement comprenant au moins 'i 'une des 0 opérations suivantes - dégraissage - sabIlage - conversion chim-ique - essuyage ou brossage 2ème phase. applicatin élctrostatt d'une poudré -e, zecuo-azL dLun poud-e  1> - A process for producing a coating on oets made of earthenware, plaster or faience, in order to iodify their surface appearance in a decorative manner by increasing their resistance, especially to shocks and weathering , characterized in that it comprises the three successive phases below: - 'e phase treatment of the surface of the oboe, according to its nature, said treatment comprising at least' i 'one of 0 following operations - degreasing - sabIlage - chemical conversion - wiping or brushing 2nd phase. applicatin elctrostatt of a powder-e, zecuo-azL of a poud-e thIermîodurcissable après un éventuel préchauffage de 'objet.  Thermolysable after possible preheating of the object. = 3ème phase: polymérisation par cuisson à une température  = 3rd phase: polymerization by cooking at a temperature comprise entre 40 et 200 C, pendant une durée de 5 a 30nin-  between 40 and 200 ° C for a period of 5 to 30 minutes. après mise en température de li'obJet.  after warming up the drink. 2j Procédé selon la revendication 1, caractérisée en ce que la conversion chimique qui peut en constlituer la première phase est réalisée par immersion lde l'objet dans un  2. The process as claimed in claim 1, characterized in that the chemical conversion which can constitute the first phase is carried out by immersion of the object in a produit alcalin.alkaline product. 3> Procédé' selon la revendication 1I, caractérisé en ce que la poudre thiUermiodurcissable mise en oeuvre dans ia deuxième phase est une poudre à base d'une résine thermodurcissable telle qu'une résine é poxy, polyester,  3> Process according to claim 1I, characterized in that the thiUermiodurcissable powder used in the second phase is a powder based on a thermosetting resin such as an epoxy resin, polyester, époxy-epolyester, polyuréthane ou rilsan.  epoxy-epolyester, polyurethane or rilsan.
FR9309319A 1993-07-26 1993-07-26 Process for the production of a coating on objects made of terracotta, plaster or faience Withdrawn FR2708265A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9309319A FR2708265A1 (en) 1993-07-26 1993-07-26 Process for the production of a coating on objects made of terracotta, plaster or faience

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309319A FR2708265A1 (en) 1993-07-26 1993-07-26 Process for the production of a coating on objects made of terracotta, plaster or faience

Publications (1)

Publication Number Publication Date
FR2708265A1 true FR2708265A1 (en) 1995-02-03

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1285898A1 (en) * 2001-08-15 2003-02-26 Danogips A/S Method for the coating of gypsum containing boards

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1285898A1 (en) * 2001-08-15 2003-02-26 Danogips A/S Method for the coating of gypsum containing boards

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