GB2051678A - Printing compositions - Google Patents
Printing compositions Download PDFInfo
- Publication number
- GB2051678A GB2051678A GB8017011A GB8017011A GB2051678A GB 2051678 A GB2051678 A GB 2051678A GB 8017011 A GB8017011 A GB 8017011A GB 8017011 A GB8017011 A GB 8017011A GB 2051678 A GB2051678 A GB 2051678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- printing composition
- filler
- composition according
- printing
- glaze
- 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- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 45
- 238000007639 printing Methods 0.000 title claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 26
- 238000010304 firing Methods 0.000 claims abstract description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 5
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 5
- 150000004760 silicates Chemical class 0.000 claims description 4
- 229910001570 bauxite Inorganic materials 0.000 claims description 3
- 229910052806 inorganic carbonate Inorganic materials 0.000 claims description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 3
- 229910052909 inorganic silicate Inorganic materials 0.000 claims description 3
- 229910052920 inorganic sulfate Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000011164 primary particle Substances 0.000 claims description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 12
- 238000005034 decoration Methods 0.000 abstract description 10
- 210000003298 dental enamel Anatomy 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 6
- 239000002320 enamel (paints) Substances 0.000 abstract description 5
- 230000001680 brushing effect Effects 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000001993 wax Substances 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000000976 ink Substances 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000007650 screen-printing Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000276489 Merlangius merlangus Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000010443 kyanite Substances 0.000 description 2
- 229910052850 kyanite Inorganic materials 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 235000013869 carnauba wax Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- -1 oxide Chemical compound 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0054—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by thermal means, e.g. infrared radiation, heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/02—Pyrography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/04—Producing precipitations
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
-
- 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
-
- 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
- C04B41/4572—Partial coating or impregnation of the surface of the substrate
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/06—Coating with enamels or vitreous layers producing designs or letters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Printing Methods (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
A printing composition especially for use in decoration of ceramic materials, glass or metals comprises a carried medium (e.g. resins and/or waxes) and a non- vitreous filler (e.g. alumina) which is refractory in nature when subjected to a firing process. The composition may also contain a water-repellant material such as a silicone. The printing composition does not bond firmly to the substrate to which it is applied even after firing so that if an area of a substrate is printed with the composition and the substrate is then coated with a glaze or enamel and fired, the glaze or enamel coating and the residual elements of the printing composition can subsequently be removed from the printed area by brushing or rubbing thereby exposing the surface of the substrate.
Description
SPECIFICATION
Printing compositions
The invention relates generally to decorating mediums and methods of decorating and is especially applicable to the decoration of ceramic materials, glass or metals.
One known method of producing decorative effects on ceramic articles is known as "resist" decorating, which involves the application of a decoration to the surface of the article using a printing ink or resist medium which will repel a subsequently applied coating of glaze, so that when the article is subsequently fired the area from which the glaze has been repelled appears as a distinct separate area surrounded by normal glazed areas. Generally the glazed areas are in a colour or tone contrasting with that of the area from which glaze has been repelled. This technique is used in the decoration of a wide range of ceramic pieces such as tiles, tableware and ornamental articles.
One of the drawbacks of resist decorating is that currently available resist mediums do not always produce satisfactory rejection of the glaze especially when it is applied by spraying. The glaze coating can adhere to some areas from which it is intended to be rejected and this results in unacceptable ware which requires to be discarded. It is an object of the present invention to obviate or mitigate this disadvantage.
The present invention provides a printing composition comprising a carrier medium and a non-vitreous filler which is refractory in nature or becomes refractory in nature when subject to a firing process.
Preferably the filler comprises an inorganic oxide, sulphate, silicate or carbonate which may contain water of hydration or hydroxyl groups which may be partially or completely lost during subsequent firing. Alternatively the filler may comprise one or more materials selected from bauxite materials, silicates, silicas, sulphates, carbonates, or oxides. The filler is preferably present in a range of 20 - 90% by weight of the composition. In a preferred composition the filler comprises activated alumina and may include an amount of silicone, generally in the region of 0.05-5% and preferably around 1% by weight of the filler. Alternatively the silicone may comprise or be incorporated in the carrier medium.The filler preferably has a melting point above 500"C and a primary particle size range of between 0.012-53.0 micrometres.
The carrier medium may comprise any medium conventionally used in the production of decorating inks and may be a thermoplastic medium for use in hot screen printing or liquid medium suitable for cold screen printing, offset printing, stamping, banding or other means of printing, the medium being selected in accordance with known criteria dependant on the printing technique to be utilised and the nature of the surface to be printed.
Printing compositions according to the invention do not bond firmly to the substrate to which they are applied even after firing. Consequently if an area of a substrate is printed with a printing composition according to the invention and the substrate is then coated with a glaze or enamel and fired, the glaze or enamel coating and the residual elements of the printing composition can subsequently be removed from the printed area by brushing or rubbing.
Generally the printing composition will serve to at least partially repel the glaze or enamel coating in which case only the residual elements of the printing composition require to be removed after firing. Where the glaze or enamel has been only partly repelled, the unwanted glaze or enamel is only loosely bonded to the substrate due to the intervening printing composition and may be removed together with the residual elements of the printing composition to expose the surface of the substrate.
The following are examples of printing compositions according to the invention:
Example 1
A thermoplastic ink for use as a resist decorating composition on pottery or glass comprises:
Alumina 66.60%
Stearyl alcohol flake 29.58%
Carnauba wax 3.82% Example 2
An alternative printing ink suitable for application at room temperature consists of:
Alumina 75.00%
Pine oil 22.50% Ethyl cellulose 2.50%
The alumina may be in the form of, for example, alumina hydrate, calcined alumina or activated alumina or may be replaced by alternative materials such as finely ground kyanite or whiting.Particularly advantageous results have been achieved using activated alumina or y-AI203. Activated aluminas from either of two principal precursors have been found equally effective, the first being aluminium hydrate Al(OH)3 and the second being aluminium isopropoxide Al(OCH2.CH2.CH3).
The organic medium acting as a carrier for the filler may consist of various waxy materials alone or in combination with suitable resinous compounds. The waxy materials may, for example, include fatty acids or fatty alcohols in the range C,2-C22, candellila wax or paraffin wax. Suitable resinous compounds include esters of hydrogenated rosins, compounds of cellulose and various polymethacrylate resins.
Particularly satisfactory results can be attained by incorporating with the filler a water repellant material, particularly a silicone, prior to preparation of the printing composition. In most cases it is necessary that the filler should be finely ground and preferably have a primary particle size range of between 0.012-53.0 micrometres. The filler should also have a melting point above about 500"C.
While the specific materials referred to above have been found to produce particularly satisfactory results, the essential characteristic of suitable fillers is that they are non-vitreous at the temperatures applied during subsequent firing, the most suitable fillers being refractory materials although these may not be formed until firing takes place. For example a hydrate may be used which is calcined during the firing process to form the corresponding oxide. Typical examples of suitable materials are alumina hydrate, calcined alumina, whiting, kyanite, zirconium, oxide, zirconium silicate, magnesite, calcined magnesite, talc, gypsum, mica, silica and feldspar. These comprise essentially inorganic sulphates, oxides, silicates and carbonates which may contain water of hydration or hydroxyl groups which may be partially or completely lost during the firing process.The carbonates may decompose completely or partially during firing. Satisfactory results have also been achieved using naturally occurring raw materials including bauxite minerals, silicates, sulphates silicas, carbonates and oxides. Some of these minerals may be altered chemically and physically during the firing process to form more stable refractory compounds.
A particular advantage of printing compositions according to the invention is that they may be applied to the articles to be printed in a variety of ways and indeed most techniques commonly used for this purpose can be employed including screen printing, offset printing, stamping, banding, spraying, transfer printing and brushing. The carrier medium in which the filler is contained can be any conventional medium which will be selected in accordance with the printing or decorating technique to be employed and the nature of the substrate to which the printing is to be applied.
In the decoration of ceramic articles, the printing composition may be applied to the surface of the article in the unfired clay state or in the so-called "biscuit" state. For this purpose the printing or decoration is applied by a suitable conventional technique to the surface of the article and the article is then coated with a glaze medium by dipping, spraying or other suitable means. Dependant on the composition of the printing ink selected and the method of applying the glaze, the glaze medium will either be repelled from the printed areas or will remain but will only bond loosely to the substrate in these areas.
Thereafter the glaze coated article is fired in conventional manner at a temperature of around 700-1400"C resulting in fusion of the glaze coating to the substrate except in the printed areas where only poor adhesion takes place. After firing, the surface of the article may be brushed or wiped to remove any of the fired layer of glaze which remains attached to the printed areas together with residual elements of the printing composition thereby exposing the surface of the article and producing a contrast with the surrounding glazed areas.
In some cases, and particularly where a wax carrier medium and activated alumina filler are utilised, the glaze medium may be repelled entirely from the printed area so that after subsequent firing only the residual elements of the printing composition, principally alumina, require to be rubbed away or otherwise removed from the printed area. In other cases the glaze medium may not be completely repelled or may form a loosely adhered coating over the entire printed area, in which case the glaze which remains on the printed area after firing is brushed or rubbed off together with the residual alumina.
In use of the technique in relation to the decoration of glass articles, a desired pattern or other decoration is printed on the surface of the article by any suitable technique and a coating of an enamel, which will generally be pigmented, is applied over part or all of the surface of the article including the printed area. The article is then subjected to firing at a temperature in the region or 500-800"C causing the enamel to fuse with the surface of the article except in the printed areas where the printing composition prevents satisfactory adherence. After firing, the fired enamel coating and the residual elements of the printing composition may be removed from the printed areas by rubbing or wiping, thereby exposing the surface of the glass article itself and producing a contrasting effect. This technique is particularly suitable for the decoration of glassware by means of motifs, logos, lettering or the like set into an overall coloured panel.
While various ink compositions and decorating techniques have been referred to above, it should be appreciated that various modifications may be made without departing from the scope of the invention. For example, it is possible to incorporate organic or inorganic pigments in the printing composition but care is necessary to avoid the use of pigments which include vitrifiable elements and hence reduce the effectiveness of the printing composition as a resist medium. In such cases it may prove impossible to achieve complete rejection of the overall glaze or enamel coating even in the case where activated alumina filler is used, but the poorly adhered fired coating together with the residual elements of the printing composition may still be removed from the surface of the article by rubbing or the like after firing. Moreover while reference has been made primarily to the decoration of ceramic or glass articles the invention may also be used to decorate other articles, for example, for enamelling metal articles.
Claims (11)
1. A printing composition comprising a carrier medium and a non-vitreous filler which is refractory in nature or becomes refractory in nature when subjected to a firing process.
2. A printing composition according to claim 1 wherein the filler comprises an inorganic oxide, sulphate, silicate or carbonate.
3. A printing composition according to claim 1 wherein the filler comprises one or more materials selected from bauxite materials, silicates, silicas, sulphates, carbonates or oxides.
4. A printing composition according to claim 1 wherein the filler comprises activated alumina.
5. A printing composition according to any preceding claim wherein the filler is present in an amount of 20-90% by weight of the composition.
6. A printing composition according to any preceding claim wherein the filler incorporates in an amount of 0.05-5.0% by weight of the filler.
7. A printing composition according to any preceding claim wherein the filler has a melting point in excess of 500"C.
8. A printing composition according to any preceding claim wherein the filler has a primary particle size range between 0.012 and 53.0 micrometres.
9. A printing composition according to any preceding claim wherein the carrier medium comprises a thermoplastic medium.
10. A printing composition according to any of claims 1 to 8 wherein the carrier medium is a liquid medium.
11. A printing composition according to any preceding claim wherein the carrier medium incorporates silicone.
1 2. A printing composition substantially in accordance with Example 1.
1 3. A printing composition substantially in accordance with Example 2.
1 4. Any novel subject matter or combination including novel subject herein disclosed, whether or not within the scope of or relating to the same invention as any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8017011A GB2051678A (en) | 1979-05-23 | 1980-05-22 | Printing compositions |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7917889 | 1979-05-23 | ||
| GB8017011A GB2051678A (en) | 1979-05-23 | 1980-05-22 | Printing compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2051678A true GB2051678A (en) | 1981-01-21 |
Family
ID=26271618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8017011A Withdrawn GB2051678A (en) | 1979-05-23 | 1980-05-22 | Printing compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2051678A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0099471A3 (en) * | 1982-06-30 | 1984-06-06 | Degussa Aktiengesellschaft | Screen printing oil for producing minute and relief prints on ceramic materials |
| EP0429670A4 (en) * | 1989-06-16 | 1991-11-13 | Nitto Denko Corporation | Method of producing fired pattern |
| EP0999070A3 (en) * | 1998-11-06 | 2003-01-02 | dmc2 Degussa Metals Catalysts Cerdec AG | Process of manufacturing coloured ceramic decorations with relief srtucture |
-
1980
- 1980-05-22 GB GB8017011A patent/GB2051678A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0099471A3 (en) * | 1982-06-30 | 1984-06-06 | Degussa Aktiengesellschaft | Screen printing oil for producing minute and relief prints on ceramic materials |
| EP0429670A4 (en) * | 1989-06-16 | 1991-11-13 | Nitto Denko Corporation | Method of producing fired pattern |
| EP0999070A3 (en) * | 1998-11-06 | 2003-01-02 | dmc2 Degussa Metals Catalysts Cerdec AG | Process of manufacturing coloured ceramic decorations with relief srtucture |
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