GB2215750A - Enamelled non-metallic ceiling tiles and wall panels - Google Patents
Enamelled non-metallic ceiling tiles and wall panels Download PDFInfo
- Publication number
- GB2215750A GB2215750A GB8806380A GB8806380A GB2215750A GB 2215750 A GB2215750 A GB 2215750A GB 8806380 A GB8806380 A GB 8806380A GB 8806380 A GB8806380 A GB 8806380A GB 2215750 A GB2215750 A GB 2215750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- product
- enamelled
- electrostatic
- metallic
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
-
- 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
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/16—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of fibres or chips, e.g. bonded with synthetic resins, or with an outer layer of fibres or chips
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Finishing Walls (AREA)
Abstract
The invention relates to an enamelled non-metallic ceiling tile and/or wall panel formed from fibrous material. Such product is preferably prepared by applying a liquid priming paint to the non-metallic fibrous material, such priming paint incorporating an electrostatic material or agent therein, thereafter applying a powder or wet paint coating to the product by electrostatic techniques, and then heating the product to produce a stone enamel type finish thereof.
Description
I ROUcMLz4TS IN OR RELATING TO NON-{TALLIC CEILING TILES AND UALL PANELS
The present invention concerns improvements in or relating to non-metallic ceiling tiles and wall panels.
The powder or wet coating of the surface of metal sheets or tiles has been carried out for many years utilising electrostatic techniques. After the paint or powder has been applied to the surface of each metal sheet or tile, the sheets or tiles are passed into a stoving oven wherein the powder melts and is thereafter stove enamelled on the sheets or tiles. Usually, prior to stoving wet paints, excess solvents are allowed to flash off after application and final drying is accomplished as part of the stoving cycle.
It has only previously been possible to achieve coatings on non-metallic material, particularly mineral fibre products by conventional air-spray or dipping, both of which procedures being uneconomical in view of substantial wastage of coating materials, by overspray or dripping in the case of dipping.
Previously, such coating of mineral fibre products has ben effected by initially applying a water-based priming paint to the raw product and thereafter covering sane with an emulsion paint. However, such procedure tends to produce 2 product which is fragile in nature.
The prior art metal sheets or tiles and mineral fibre coated products have been used for many years as ceiling tiles and/or wall panels.
It is an object of the present invention to provide a ceiling tile and/or uall panel produced frill non-metallic material, such ceiling tile and/or wall panel having the surface strength of previously produced metal sheets, whilst at the same time having advantages over such metal sheets.
According to the present invention there is provided an enamelled non-metallic ceiling tile and/or wall panel.
The present invention is concerned with all fibrous proddcts, both inorganic and organic or admixtures thereof.
The invention is particularly applicable to mineral fibre material as well as to an oroanic/inorganic combination of granular and/or fibrous materials.
The product in accordance with the present invention can be produced by various processes. In an embodiment of the invention, there is provided a method for the production of an enamelled non-metallic fibrous product for use as a ceiling tile and/or well panel, comprising applying a liquid priming paint to the non-metallic fibrous product, such priming agent incorporating an electrostatic material or agent therein, thereafter applying a powder or wet paint coating to the product by electrostatic techniques, and then heating the product to produce a stove enamel type finish thereon.
In a further embodiment of the present invention, the e is provided a method for producing an enamelled nonmetallic fibrous product for use as a ceiling tile and/or wall panel, comprising applying a liquid priming paint to the product, thereafter applying a wet solventbased paint, heating the product, allowing excess solvent to be removed and thereafter passing the product into a stoving oven to produce a stove enamelled finish to the product.
Known stove enamelled metal sheets or tiles are extremely strong. We have discovered that an enamelled non-metallic fibrous product in accordance with the present invention has similar surface strength properties, and improved 'scratchability!. It is clear that the enamelled product of the present invention is harder and stronger than previously utilised mineral fibre tiles; however, the sag resistance may be improved and the fire resistance meets the necessary Class 1 Spread of Flare requirement. The product also has an improved mar and impact resistance as compared to previously utilised emulsion-coated mineral fibre tiles. This is particularly beneficial in the case of production of a square edged product since previously utilised mineral fibre tiles could have such edge portions broken on impact.Accordingly, there is an anticipated reduction of breakage of such-product on site.
Whilst previous mineral fibre products were absorbent, the product of the invention is rendered more impervious to water or water vapour.
A further advantage over known mineral fibre products is that there is often a requirement to wipe or, in the case of hospitals and bakeries, almost scrub clean the surface of the product. The product in accordance with the present invention has a surface which is highly cleanable end therefore vastly improved the mineral tiles "scrubebility".
The product of the present invention is equally as surface strong as previously utilised metal products, whilst being more economic to produce. In addition, the "scratchability" of the product in accordance with the present invention is far better than that of a metal substrate.
An added advantage of the product of the present invention is that same does not require any further insulation means to produce the required thermal and acoustic properties. Such is not the case with a metal tile which requires an additional insulation means.
A further advantage of the product of the present invention is that a surface is produced on the product which is satisfactory for cleaning purposes and also for subsequent printing thereon, whilst at the same time retaining the necessary Class 1. Spread of Flame rating. The possibility of printing on the surface of the product of the present invention provides many advantages since any selected design or pattern can be applied to the surface of the enamelled product. The product of the invention is particularly suitable for subsequent sublimation transfer printing, although other forms of printing can be utilised.
It is also to be noted that the electrostatic coating techniques referred to above, by which the product of the present invention may be produced, enables paints previously utilised on metal, such as deeply coloured paints, to be applied to mineral fibre products by electrostatic powder or wet paint techniques.
In the electrostatic method utilised in the invention, the preferred electrostatic materials are quarternary ammonium compounds, lore particularly quarternary ammonium ethosulphate, which for ease of dispersion in either aqueous or non-aqueous systems, is supplied as an RO ' solution in n-butyl alcohol. However, any material which is compatible in aqueous paint systems can be employed as an electrostatic agent. A level of addition of up to 29:, based on the total weight of the formulation, is preferred.
When producing a product of the invention utilising eectrostatic techniques, it is noted that no external electrostatic connections are necessary to attract the oowder, it merely being necessary to ensure that the areas that require coating are adequately activated by the electrostatic materials.
Both sides of the product could be coated in order to prevent any curling caused by extremes of heat.
It will thus be seen that the present invention provides an enamelled non-metallic product which is particularly suitable for use as a ceiling tile which has comparable surface strength properties with previously produced enamelled metal products, but having additional advantages thereover.
In order to further describ'e the present invention reference will be made to the following Example.
EXAMPLE
A plurality of mineral fibre panels of any suitable size, e.g. 300 x 300, 600 x 300, and 1200 x 300 mm. were each coated with a priming paint incorporating quarternary ammonium ethosulphate therein in an amount such that the surface of each panel will have sufficient electrostatic charge to retain the wet paint or powder coating to be subsequently applied thereto. The method of application of the primer and the point of application in the treatment line may be selected as desired, e.g. primer roller coating as well as hot rolling or curtain coating, or in the case of the bevel portion of the surface, may be applied by bevel coaters or sprayed on afterwards.
The plurality of so treated panels will then be suspended subsequentially vertically and passed through a powder paint coating treatment section. It is noted that the paint adheres to the surface of each panel, no external electro-static connection being necessary to attract the powder.
Thereafter, the panels were subject to a heat treatment and a stove enamel type finish was obtained thereon.
Claims (11)
1. An enamelled non-metallic ceiling tile and/or wall panel.
2. A panel as claimed in claim 1, formed from inorganic and/or organic fibrous material.
3. A panel as claimed in claim 1, formed from mineral fibre material or an organic/inorganic combination of granular and/or fibrous materials.
4. A panel as claimed in claim 1, 2 or 3, substantially as hereinbefore described and exemplified.
5. A method for the production of an enamelled non-metallic fibrous product for use as a ceiling tile and/or wall panel, comprising applying a liquid priming paint to a non-metallic fibrous product, such priming paint incorporating an electrostatic material or agent therein, thereafter applying a powder or wet paint coating to the product by electrostatic techniques, and then heating the product to produce a stove enamel type finish thereon.
6. A method as claimed in claim 5, in which the electrostatic coating of the product is effected utilising an electrostatic material in an amount of up to 2% based on the total weight of the formulation.
7. A method as claimed in claim 6, in which the electrostatic material is a quarternary ammonium compound.
8. A method as claimed in claim 7, in which the quarternary ammonium compound is quarternary ammonium ethosulphate in the form of an 80% solution in n-butyl alcohol.
9. A method for producing an enamelled non-metallic fibrous product for use as a ceiling tile and/or wall panel, comprising applying a liquid priming paint to the product, thereafter applying a wet solvent-based paint, heating the product, allowing excess solvent to be removed and thereafter passing the product into a stoving oven to produce a stove enamel finish to the product.
10. A method as claimed in any one of claims 5 to 8 or claim 9, substantially as hereinbefore described and exemplified.
11. An enamelled non-metallic fibrous product for use as a ceiling tile and/or wall panel, whenever produced by a method as claimed in claims 5 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8806380A GB2215750B (en) | 1988-03-17 | 1988-03-17 | Improvements in or relating to non-metallic ceiling tiles and wall panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8806380A GB2215750B (en) | 1988-03-17 | 1988-03-17 | Improvements in or relating to non-metallic ceiling tiles and wall panels |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8806380D0 GB8806380D0 (en) | 1988-04-13 |
| GB2215750A true GB2215750A (en) | 1989-09-27 |
| GB2215750B GB2215750B (en) | 1991-11-27 |
Family
ID=10633622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8806380A Expired - Fee Related GB2215750B (en) | 1988-03-17 | 1988-03-17 | Improvements in or relating to non-metallic ceiling tiles and wall panels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2215750B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1440233A (en) * | 1972-06-27 | 1976-06-23 | Honeywell Inc | Resettable switch |
| GB1443532A (en) * | 1972-09-22 | 1976-07-21 | Ppg Industries Inc | Heat and light reflecting spandrel |
| GB2087793A (en) * | 1980-11-18 | 1982-06-03 | Sonoco Products Co | Corrugated building panel and method of manufacturing same |
| GB2106263A (en) * | 1981-06-30 | 1983-04-07 | Ppg Industries Inc | Durable ceramic enamel spandrels |
-
1988
- 1988-03-17 GB GB8806380A patent/GB2215750B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1440233A (en) * | 1972-06-27 | 1976-06-23 | Honeywell Inc | Resettable switch |
| GB1443532A (en) * | 1972-09-22 | 1976-07-21 | Ppg Industries Inc | Heat and light reflecting spandrel |
| GB2087793A (en) * | 1980-11-18 | 1982-06-03 | Sonoco Products Co | Corrugated building panel and method of manufacturing same |
| GB2106263A (en) * | 1981-06-30 | 1983-04-07 | Ppg Industries Inc | Durable ceramic enamel spandrels |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8806380D0 (en) | 1988-04-13 |
| GB2215750B (en) | 1991-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930317 |