ITMI20110794A1 - OIL COLORS FOR FINE ARTS WITH HIGH-DEFINITION PERFORMANCE - Google Patents
OIL COLORS FOR FINE ARTS WITH HIGH-DEFINITION PERFORMANCE Download PDFInfo
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- ITMI20110794A1 ITMI20110794A1 IT000794A ITMI20110794A ITMI20110794A1 IT MI20110794 A1 ITMI20110794 A1 IT MI20110794A1 IT 000794 A IT000794 A IT 000794A IT MI20110794 A ITMI20110794 A IT MI20110794A IT MI20110794 A1 ITMI20110794 A1 IT MI20110794A1
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- 239000003086 colorant Substances 0.000 title description 12
- 239000000203 mixture Substances 0.000 claims description 56
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 45
- 239000003921 oil Substances 0.000 claims description 28
- 235000019198 oils Nutrition 0.000 claims description 28
- 235000021388 linseed oil Nutrition 0.000 claims description 20
- 239000000944 linseed oil Substances 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 18
- 239000000049 pigment Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 11
- 239000000194 fatty acid Substances 0.000 claims description 11
- 229930195729 fatty acid Natural products 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 150000004665 fatty acids Chemical class 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 159000000007 calcium salts Chemical class 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 235000004426 flaxseed Nutrition 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 239000012860 organic pigment Substances 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 239000008347 soybean phospholipid Substances 0.000 claims description 5
- 240000006240 Linum usitatissimum Species 0.000 claims description 4
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 4
- 239000001023 inorganic pigment Substances 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- PZNPLUBHRSSFHT-RRHRGVEJSA-N 1-hexadecanoyl-2-octadecanoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCCCC(=O)O[C@@H](COP([O-])(=O)OCC[N+](C)(C)C)COC(=O)CCCCCCCCCCCCCCC PZNPLUBHRSSFHT-RRHRGVEJSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 239000008240 homogeneous mixture Substances 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 235000005985 organic acids Nutrition 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 2
- YPIFGDQKSSMYHQ-UHFFFAOYSA-N 7,7-dimethyloctanoic acid Chemical class CC(C)(C)CCCCCC(O)=O YPIFGDQKSSMYHQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011045 chalcedony Substances 0.000 claims description 2
- QAEKNCDIHIGLFI-UHFFFAOYSA-L cobalt(2+);2-ethylhexanoate Chemical class [Co+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O QAEKNCDIHIGLFI-UHFFFAOYSA-L 0.000 claims description 2
- 235000010445 lecithin Nutrition 0.000 claims description 2
- 239000000787 lecithin Substances 0.000 claims description 2
- 229940067606 lecithin Drugs 0.000 claims description 2
- 229910003002 lithium salt Inorganic materials 0.000 claims description 2
- 159000000002 lithium salts Chemical class 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 239000006254 rheological additive Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- DTOSIQBPPRVQHS-UHFFFAOYSA-N α-Linolenic acid Chemical compound CCC=CCC=CCC=CCCCCCCCC(O)=O DTOSIQBPPRVQHS-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical class [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- -1 aluminum silicates Chemical class 0.000 description 2
- 229910052791 calcium Chemical class 0.000 description 2
- 239000011575 calcium Chemical class 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 238000010428 oil painting Methods 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/06—Artists' paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/005—Drying oils
Description
“COLORI A OLIO PER LE BELLE ARTI CON PRESTAZIONI AD ALTA DEFINIZIONE†⠀ œOIL COLORS FOR FINE ARTS WITH HIGH DEFINITION PERFORMANCEâ €
DESCRIZIONE DESCRIPTION
La presente invenzione riguarda colori a olio per le belle arti in grado di impartire effetti cromatici non convenzionali per un colore a olio quali trasparenza assoluta del colore, altissima rifrazione della luce, nitidezza tale da produrre un effetto “dinamico†del colore (live color) e di permettere una pittura in alta definizione. The present invention relates to oil colors for fine arts capable of imparting unconventional chromatic effects for an oil color such as absolute transparency of the color, very high refraction of light, sharpness such as to produce a â € œdynamicâ € effect of the color (live color ) and to allow high definition painting.
In particolare, la presente invenzione riguarda colori a olio per le belle arti come sopra definiti dotati di una gamma cromatica non convenzionale e in grado di fornire prestazioni in alta definizione, in particolare di fornire un effetto di retroilluminazione del colore ed effetti speciali quali iridescenze o fluorescenze. In particular, the present invention relates to oil colors for fine arts as defined above with an unconventional chromatic range and capable of providing high definition performance, in particular of providing a color backlighting effect and special effects such as iridescence or fluorescence.
Inoltre la presente invenzione si riferisce a colori a olio come sopra definiti dotati anche di una maggiore velocità di polimerizzazione del film sottile derivante dalla pennellata. Furthermore, the present invention relates to oil colors as defined above also endowed with a higher polymerization speed of the thin film deriving from the brush stroke.
La pittura a olio à ̈ una tecnica pittorica che utilizza pigmenti in polvere mescolati con basi inerti e oli essiccanti, generalmente olio di lino grazie alla sua spiccata siccatività . Oil painting is a painting technique that uses powdered pigments mixed with inert bases and drying oils, generally linseed oil thanks to its marked dryness.
Le composizioni per colori a olio attualmente sul mercato sono caratterizzate dall 'impartire un colore dotato di pulizia di tono, alta coprenza ed hanno generalmente un tempo di polimerizzazione del film nell’ordine delle 48 ore. The compositions for oil paints currently on the market are characterized by imparting a color with tone cleaning, high opacity and generally have a polymerization time of the film in the order of 48 hours.
Tale pulizia di tono non permette però di realizzare effetti cromatici definiti come colore “dinamico†(live color), il quale à ̈ molto richiesto in quanto permette di ottenere effetti più realistici e più particolareggiati come ad esempio le trasparenze. Generalmente si parla di colore “dinamico†quando si riesce a raggiungere, oltre alla pulizia di tono, anche una brillantezza ed estrema lucentezza del colore, nonché trasparenza assoluta del colore tale da conferire un effetto di retroilluminazione del colore. However, this tone cleaning does not allow for the creation of chromatic effects defined as â € œdynamicâ € (live color), which is in great demand as it allows to obtain more realistic and more detailed effects such as transparencies. Generally speaking of â € œdynamicâ € color when it is possible to achieve, in addition to the cleansing of the tone, also a brilliance and extreme brightness of the color, as well as absolute transparency of the color such as to give a color backlighting effect.
Ad oggi tali effetti vengono creati aggiungendo una lacca al colore a olio al fine di aumentare la brillantezza e il contrasto di colore: tuttavia questo porta solo all’ottenimento di un film pittorico uniforme reso lucido e non ad effetti cromatici più realistici e particolareggiati quali le trasparenze. To date, these effects are created by adding a lacquer to the oil color in order to increase the brilliance and color contrast: however this only leads to obtaining a uniform pictorial film made glossy and not to more realistic and detailed chromatic effects such as transparencies.
Scopo della presente invenzione à ̈ quello di avere a disposizione una composizione per colori a olio per le belle arti in grado di superare, anche in parte, gli inconvenienti che la tecnica nota lamenta, in particolare una composizione in grado di impartire effetti cromatici quali trasparenza assoluta del colore, brillantezza ed estrema lucentezza del colore, e pulizia di tono, tali da produrre un effetto “dinamico†del colore (live color) per la creazione di trasparenze. The purpose of the present invention is to have available a composition for oil colors for fine arts capable of overcoming, even in part, the drawbacks that the known art complains of, in particular a composition capable of imparting chromatic effects such as transparency absolute color, brilliance and extreme brightness of the color, and cleanliness of tone, such as to produce a â € œdynamicâ € effect of the color (live color) for the creation of transparencies.
Altro scopo à ̈ quello di avere a disposizione una tale composizione che sia economica, facile da preparare mediante un processo semplice, e pronta all’uso. Another purpose is to have such a composition available which is economical, easy to prepare by means of a simple process, and ready for use.
Ancora un altro scopo à ̈ quello di avere a disposizione una tale composizione che sia in grado di essiccare (polimerizzare) nel più breve tempo possibile, in particolare in un tempo inferiore rispetto ai colori a olio noti, al fine di ridurre i tempi per l’ottenimento dell’opera d’arte finita. Yet another object is to have available such a composition which is capable of drying (polymerizing) in the shortest possible time, in particular in a shorter time than known oil colors, in order to reduce the time required for painting. Obtaining the finished work of art.
Questi scopi sono raggiunti dalla composizione per colori a olio in accordo all’invenzione avente le caratteristiche elencate nella annessa rivendicazione indipendente 1. These objects are achieved by the composition for oil paints according to the invention having the characteristics listed in the attached independent claim 1.
Realizzazioni vantaggiose dell’invenzione appaiono dalle rivendicazioni dipendenti. Advantageous embodiments of the invention appear from the dependent claims.
La composizione per colori a olio per le belle arti oggetto della presente invenzione comprende The composition for fine art oil paints object of the present invention comprises
(A) una frazione liquida costituita da (A) a liquid fraction consisting of
- uno o più acidi grassi derivanti da semi di lino, come modificatore della reologia, - one or more fatty acids derived from linseed, as a rheology modifier,
- olio di lino crudo, come olio siccativo legante, - crude linseed oil, as a binding siccative oil,
- lecitina di soia in forma liquida, come umettante-bagnante, - soy lecithin in liquid form, as a humectant-wetting agent,
- miscela di sali metallici siccativi, preferibilmente composta da sali di cobalto, litio e calcio di uno o più acidi organici, - mixture of drying metal salts, preferably composed of cobalt, lithium and calcium salts of one or more organic acids,
(B) una frazione in polvere costituita da (B) a powdered fraction consisting of
- silice, come addensante, - silica, as a thickener,
e opzionalmente and optionally
- uno o più pigmenti organici e/o inorganici, - one or more organic and / or inorganic pigments,
le particelle di detta frazione in polvere avendo dimensioni inferiori a 5 micron e la quantità di olio di lino essendo almeno il 75% in peso rispetto al peso totale della composizione (frazione liquida frazione solida), preferibilmente almeno il 78% in peso, più preferibilmente almeno P80% in peso. the particles of said powder fraction having dimensions lower than 5 microns and the quantity of linseed oil being at least 75% by weight with respect to the total weight of the composition (liquid fraction solid fraction), preferably at least 78% by weight, more preferably at least P80% by weight.
Senza volersi vincolare ad alcuna teoria, si presume che gli effetti cromatici della presente composizione, quali Γ effetto “dinamico†del colore (live color), la trasparenza assoluta del colore, Γ altissima rifrazione della luce, la nitidezza e la retroilluminazione del colore, siano dovuti all’avere disperso particelle solide (della frazione in polvere) di dimensioni inferiori ai 5 micron in una elevata quantità di olio di lino, che à ̈ di gran lunga maggiore rispetto a quella contenuta nei colori a olio noti. Without wishing to be bound by any theory, it is assumed that the chromatic effects of this composition, such as Î "â € œdynamicâ € effect of color (live color), absolute transparency of color, Î" very high refraction of light, sharpness and backlighting of the color, are due to having dispersed solid particles (of the powder fraction) of less than 5 microns in a high quantity of linseed oil, which is far greater than that contained in known oil colors.
Ad esempio, considerando il pigmento Ftalocianina Beta PB15:3 (colorazione blu), si ha che nelle composizioni a olio convenzionali l’olio di lino à ̈ intorno a chea il 33% in peso e il pigmento à ̈ in quantità nell’ordine del 2,5% in peso, mentre nella presente composizione lo stesso pigmento viene utilizzato in quantità di circa il 4,4% in peso disperso in una quantità di olio di lino di circa 82,5%. For example, considering the pigment Phthalocyanine Beta PB15: 3 (blue color), we have that in conventional oil compositions the linseed oil is around 33% by weight and the pigment is in quantity in the order of 2.5% by weight, while in the present composition the same pigment is used in an amount of about 4.4% by weight dispersed in an amount of linseed oil of about 82.5%.
In aggiunta, l’uso di silice, in sostituzione del carbonato di calcio e dei silicati di alluminio utilizzati nell’arte nota come eccipienti in polvere, aumenta l’effetto di trasparenza estrema generato dalle particelle di dimensioni inferiori a 5 micron e dalla elevata quantità d’olio di lino. In addition, the use of silica, instead of calcium carbonate and aluminum silicates used in the art known as powder excipients, increases the effect of extreme transparency generated by particles smaller than 5 microns and from the high quantity of linseed oil.
Di fatto, à ̈ stato trovato dalla Richiedente che la silice oltre ad addensare la composizione, agisce anche come controllore della sedimentazione dei pigmenti e della distensione del film e aumenta Γ effetto tixotropico della composizione stessa. In fact, it has been found by the Applicant that silica, in addition to thickening the composition, also acts as a controller of the sedimentation of the pigments and of the distension of the film and increases the thixotropic effect of the composition itself.
Le suddette dimensioni delle particelle della frazione solida dispersa nella frazione liquida vengono ottenute grazie al processo di preparazione della presente composizione che verrà descritto successivamente. The above dimensions of the particles of the solid fraction dispersed in the liquid fraction are obtained thanks to the preparation process of the present composition which will be described later.
Grazie poi all’uso di una miscela siccativa formata da sali di acidi organici di cobalto, litio e calcio, à ̈ possibile ottenere una composizione per colori a olio dotata di un ridotto tempo di essiccamento (polimerizzazione), pari a circa 24 ore per un film sottile derivante da una pennellata. Thanks to the use of a drying mixture formed by organic acid salts of cobalt, lithium and calcium, it is possible to obtain a composition for oil colors with a reduced drying time (polymerization), equal to about 24 hours for a thin film resulting from a brushstroke.
La composizione della presente invenzione à ̈ generalmente in forma di pasta. The composition of the present invention is generally in the form of a paste.
Come acidi grassi derivanti dai semi di lino si intendono quelli generalmente contenuti nell’olio di semi di lino quali acido α-linolenico, acido paimitico, acido stearico, acido oleico, acido linoleico, preferibilmente acido alinolenico, acido linoleico, acido oleico o loro miscele, e sono disponibili sul mercato in forma di concentrato. Detti acidi grassi agiscono come modificatore della reologia della composizione. As fatty acids deriving from linseed we mean those generally contained in linseed oil such as Î ± -linolenic acid, paimitic acid, stearic acid, oleic acid, linoleic acid, preferably alinolenic acid, linoleic acid, oleic acid or their mixtures, and are available on the market in concentrate form. Said fatty acids act as a modifier of the rheology of the composition.
Come olio di lino crudo si intende identificare l’olio di lino dalla caratteristica colorazione paglierino trasparente, che à ̈ stato chiarificato e purificato con procedimenti naturali, al fine di raggiungere un'ottima trasparenza, ma che non ha subito trattamenti termici. Tale olio risulta essere vantaggiosamente un olio siccativo grazie all’elevato contenuto di acido a-linolenico (40-60% in peso). Gli oli siccativi sono particolari oli che all'aria polimerizzano (seccano) formando film plastico ed uniforme. As crude linseed oil we intend to identify linseed oil with a characteristic transparent straw color, which has been clarified and purified with natural processes, in order to achieve excellent transparency, but which has not undergone heat treatments. This oil is advantageously a drying oil thanks to the high content of a-linolenic acid (40-60% by weight). Siccative oils are particular oils that polymerize (dry) in the air, forming a uniform and plastic film.
Come silice qui si intende identificare il biossido di silicio Si02, sia in forma di polvere cristallina bianca (silice pura) sia sotto forma di polvere di solidi cristallini composti esclusivamente di silice, tra i quali il quarzo o le sue forme di alta e altissima temperatura tridimite e cristobalite, oltre a polvere di solidi criptocristallini quali il calcedonio, sia derivati di detta silice. Tale polvere di silice viene utilizzata per controllare la viscosità , la tixotropia. As silica we intend to identify silicon dioxide Si02, both in the form of a white crystalline powder (pure silica) and in the form of a powder of crystalline solids composed exclusively of silica, including quartz or its high and very high temperature forms tridymite and cristobalite, as well as powder of cryptocrystalline solids such as chalcedony, and derivatives of said silica. Such silica powder is used to control viscosity, thixotropy.
Preferibilmente il contenuto di silice à ̈ almeno il 9% in peso rispetto al peso della composizione. Preferably the silica content is at least 9% by weight with respect to the weight of the composition.
La lecitina di soia à ̈ utilizzata come agente emulsionante al fine di emulsionare le polveri con i grassi/oli. Soy lecithin is used as an emulsifying agent in order to emulsify powders with fats / oils.
Come miscela di sali metallici siccativi formati da sali di cobalto, litio e calcio si intende identificare una miscela bilanciata composta dai suddetti sali di uno o più acidi organici (ad esempio acido ottanico) e da almeno un solvente organico in cui detti sali sono disciolti. Detti sali velocizzano la polimerizzazione (essicazione) dell’olio di lino grazie al loro effetto catalitico. As a mixture of drying metal salts formed by cobalt, lithium and calcium salts, it is intended to identify a balanced mixture composed of the aforementioned salts of one or more organic acids (for example octane acid) and of at least one organic solvent in which said salts are dissolved. These salts speed up the polymerization (drying) of linseed oil thanks to their catalytic effect.
Un esempio non limitativo di tale miscela comprende il 5-10% di sali 2-etilesanoato di cobalto, 40-50% di sali di litio di acido neodecanoico e 40-50% di sali di calcio di acidi grassi C6-C19 ramificati, i quali sono disciolti in nafta (da petrolio) pesante idrotrattata e/o nafta (da petrolio) pesante idrodesolforizzata. A non-limiting example of such a mixture includes 5-10% cobalt 2-ethylhexanoate salts, 40-50% lithium salts of neodecanoic acid and 40-50% calcium salts of branched C6-C19 fatty acids, i which are dissolved in hydrodesulfurized heavy (petroleum) naphtha and / or hydrodesulfurized heavy (petroleum) naphtha.
Come detto sopra, la presente composizione può contenere o non contenere pigmenti pur mostrando i suddetti effetti cromatici non convenzionali (trasparenza assoluta del colore, altissima rifrazione della luce, retroilluminazione del colore, nitidezza tale da produrre un effetto “dinamico†del colore (live color)). As mentioned above, this composition may or may not contain pigments while showing the aforementioned unconventional chromatic effects (absolute color transparency, very high light refraction, color backlighting, sharpness such as to produce a â € œdynamicâ € effect of the color (live color)).
Nel caso in cui i pigmenti siano assenti, la composizione della presente invenzione, definita “no color†, viene utilizzata in combinazione con colori convenzionali per conferire le suddette caratteristiche oppure con le composizioni pigmentate della presente invenzione per aumentarne ulteriormente i suddetti effetti. In the event that the pigments are absent, the composition of the present invention, defined â € œno colorâ €, is used in combination with conventional colors to confer the aforementioned characteristics or with the pigmented compositions of the present invention to further increase the aforesaid effects.
Come pigmenti organici e/o inorganici si possono citare quelli utilizzati normalmente nella preparazione di colori a olio convenzionali presenti sul mercato, generalmente identificati con il nome del pigmento (Color Index Name) e con il loro numero identificativo (Color Index Number o C.I. Number) secondo il Color Index Reference Book, ad esempio PY3 (C.I. name) e 11710 (C.I. Number) per il giallo arilide pigmento monoazoico. As organic and / or inorganic pigments we can mention those normally used in the preparation of conventional oil colors on the market, generally identified with the name of the pigment (Color Index Name) and with their identification number (Color Index Number or C.I. Number) according to the Color Index Reference Book, for example PY3 (C.I. name) and 11710 (C.I. Number) for the yellow arylide monoazo pigment.
Preferibilmente nella presente composizione la silice à ̈ almeno il 9% in peso e l’olio di lino à ̈ almeno il 78%, la parte rimante a 100 essendo la somma dalle quantità degli altri componenti. Preferably in the present composition the silica is at least 9% by weight and the linseed oil is at least 78%, the remaining part at 100 being the sum of the quantities of the other components.
Più in particolare la presente composizione comprende (% in peso rispetto al peso della composizione finale): More particularly, the present composition comprises (% by weight with respect to the weight of the final composition):
- 0,2-0, 4% di uno o più acidi grassi derivanti dai semi di lino, - 0.2-0.4% of one or more fatty acids derived from linseed,
- 78-82% di olio di lino crudo, - 78-82% of raw linseed oil,
- 1,8-2, 2% di lecitina di soia, - 1.8-2.2% soy lecithin,
- 0,8-1% della suddetta miscela di sali metallici siccativi di cobalto, litio, calcio, - 0.8-1% of the aforementioned mixture of drying metal salts of cobalt, lithium, calcium,
- 9-10% di silice, - 9-10% silica,
9-10% di uno o più dei suddetti pigmenti in polvere aventi una dimensione delle particelle inferiore ai 5 micron, di cui il 2, 8-3,1% à ̈ rappresentato da pigmenti organici se utilizzati. 9-10% of one or more of the aforementioned powder pigments having a particle size lower than 5 microns, of which 2.8-3.1% is represented by organic pigments if used.
La composizione della presente invenzione può essere ottenuta utilizzando metodi noti di dispersione delle polveri nei liquidi, ad esempio miscelando tra loro prima i componenti liquidi sopra descritti (olio di lino, acidi grassi, lecitina, miscela siccativa), aggiungendo poi, sotto agitazione, i componenti in polvere sopra descritti (silice, pigmenti). The composition of the present invention can be obtained using known methods of dispersing the powders in liquids, for example by first mixing together the liquid components described above (linseed oil, fatty acids, lecithin, siccative mixture), then adding, under stirring, the powder components described above (silica, pigments).
La temperatura della miscela durante le suddette fasi deve essere tenuta al di sotto dei 40°C per evitare che l’olio di lino polimerizzi durante il processo di preparazione del colore a olio. The temperature of the mixture during the above steps must be kept below 40 ° C to prevent the linseed oil from polymerizing during the process of preparing the oil color.
E’ da notare che l’agitazione durante la fase di aggiunta dei componenti in polvere a quelli liquidi à ̈ importante per assicurare che non si formino agglomerati con dimensioni superiori ai 50 micron, rendendo così la miscela omogenea e atta ad essere sottoposta alla successiva fase di raffinazione. It should be noted that the agitation during the phase of adding the powder components to the liquid ones is important to ensure that no agglomerates with dimensions greater than 50 microns are formed, thus making the mixture homogeneous and suitable for being subjected to the subsequent refining phase.
La successiva fase di raffinazione avviene alimentando la miscela omogenea ottenuta in precedenza (dispersione) ad una raffinatrice a tre cilindri al fine di ridurre gli aggregati in particelle aventi dimensioni inferiori ai 5 micron. The subsequent refining phase takes place by feeding the homogeneous mixture obtained previously (dispersion) to a three-cylinder refiner in order to reduce the aggregates into particles having dimensions below 5 microns.
La fase di raffinazione, a cui viene sottoposta la miscela omogenea contenente aggregati con dimensioni non superiori a 50 micron, à ̈ essenziale per ottenere particelle con dimensioni inferiori ai 5 micron: la Richiedente ha infatti trovato che tali dimensioni permettono di raggiungere ottimi risultati in termini di trasparenza assoluta del colore, brillantezza ed estrema lucentezza del colore, e pulizia di tono, tali da produrre un effetto “dinamico†del colore non raggiungibile dai colori a olio noti dove le particelle dei pigmenti sono nell’ordine dei 10-20 micron. The refining phase, to which the homogeneous mixture containing aggregates with dimensions not exceeding 50 microns is subjected, is essential to obtain particles with dimensions lower than 5 microns: the Applicant has in fact found that these dimensions allow to achieve excellent results in terms of absolute transparency of the color, brilliance and extreme brightness of the color, and cleanliness of tone, such as to produce a â € œdynamicâ € effect of the color not reachable by the known oil colors where the pigment particles are in the order of 10-20 micron.
Alla fase di raffinazione segue una fase di stoccaggio e riposo per circa 30 giorni in appositi contenitori, dopo di che il prodotto à ̈ pronto per il confezionamento in tubetti (oil paini tube). The refining phase is followed by a storage and resting phase for about 30 days in special containers, after which the product is ready for packaging in tubes (oil paini tube).
La composizione per colori a olio per le belle arti della presente invenzione soddisfa tutti i requisiti delle nonne ASTM D4302 e ASTM D4303 relativa all’esposizione alla luce. Inoltre la composizione per colori a olio per le belle arti della presente invenzione non contiene componenti tossici così da poter eventualmente essere valutata in relazione alla norma ASTM 4236. The fine art oil paint composition of the present invention meets all the requirements of ASTM D4302 and ASTM D4303 regarding exposure to light. Furthermore, the composition for oil paints for the fine arts of the present invention does not contain toxic components so that it can possibly be evaluated in relation to the ASTM 4236 standard.
Alle presenti forme di realizzazione dell’invenzione possono essere apportate numerose variazioni e modifiche di dettaglio alla portata di un tecnico del ramo, rientranti comunque nell’ ambito dell’invenzione espresso dalle rivendicazioni annesse Numerous variations and modifications of detail within the reach of a person skilled in the art can be made to the present embodiments of the invention, however falling within the scope of the invention expressed by the attached claims
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000794A ITMI20110794A1 (en) | 2011-05-09 | 2011-05-09 | OIL COLORS FOR FINE ARTS WITH HIGH-DEFINITION PERFORMANCE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000794A ITMI20110794A1 (en) | 2011-05-09 | 2011-05-09 | OIL COLORS FOR FINE ARTS WITH HIGH-DEFINITION PERFORMANCE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITMI20110794A1 true ITMI20110794A1 (en) | 2012-11-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000794A ITMI20110794A1 (en) | 2011-05-09 | 2011-05-09 | OIL COLORS FOR FINE ARTS WITH HIGH-DEFINITION PERFORMANCE |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | ITMI20110794A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442675A (en) * | 1963-04-20 | 1969-05-06 | Huels Chemische Werke Ag | Coating compositions comprising cis-1,4-polybutadiene and natural drying oil |
| US4919721A (en) * | 1987-05-21 | 1990-04-24 | Ostermann & Scheiwe Gmbh & Co. Kg | Air-drying stains and finishing coats for wood for exterior and interior finishes |
| US5320670A (en) * | 1992-12-22 | 1994-06-14 | Foster Avis A | Soybean oil paint base |
-
2011
- 2011-05-09 IT IT000794A patent/ITMI20110794A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442675A (en) * | 1963-04-20 | 1969-05-06 | Huels Chemische Werke Ag | Coating compositions comprising cis-1,4-polybutadiene and natural drying oil |
| US4919721A (en) * | 1987-05-21 | 1990-04-24 | Ostermann & Scheiwe Gmbh & Co. Kg | Air-drying stains and finishing coats for wood for exterior and interior finishes |
| US5320670A (en) * | 1992-12-22 | 1994-06-14 | Foster Avis A | Soybean oil paint base |
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