EP0680413B1 - Procede d'application d'un revetement decoratif sur un substrat - Google Patents
Procede d'application d'un revetement decoratif sur un substrat Download PDFInfo
- Publication number
- EP0680413B1 EP0680413B1 EP94904714A EP94904714A EP0680413B1 EP 0680413 B1 EP0680413 B1 EP 0680413B1 EP 94904714 A EP94904714 A EP 94904714A EP 94904714 A EP94904714 A EP 94904714A EP 0680413 B1 EP0680413 B1 EP 0680413B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- substrate
- coating
- tool
- opaque surface
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/005—Removing selectively parts of at least the upper layer of a multi-layer article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/061—Special surface effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F9/00—Designs imitating natural patterns
- B44F9/02—Designs imitating natural patterns wood grain effects
Definitions
- the present invention is concerned with a decorative method, and particularly a decorative method for providing a grained appearance on a substrate, such as a method of simulating the appearance of limed wood (especially oak) or the like.
- Grain imitation techniques are known in which a scumble glaze is applied to a painted wood substrate, the scumble glaze being applied in a streaky discontinuous manner to give the appearance of natural graining.
- Currently used techniques are very time consuming and require considerable expertise, such as that of a craftsman, to create a desired natural grain appearance. They do not therefore appeal to amateur (that is, "do-it-yourself") painters, who represent an increasingly important part of the market. I have now developed a method which helps alleviate the above problems and which has been found to have its own aesthetic attraction to home owners.
- a method of providing a decorative coating for an opaque surface comprises applying to said opaque surface a substantially continuous layer comprising an intimate mixture comprising a particulate (preferably non film-forming) material and an aqueous film-forming polymer binder, said particulate material and said layer both being lighter in colour than said opaque surface, and discontinuously removing part of said layer (preferably in streaks) so as to selectively expose part of said opaque surface.
- NCS International System of colour definition
- the NCS is described in the "ICI Colour Dimensions Colour Atlas” published by Imperial Chemical Industries Plc of London in 1986 ("Colour Dimensions” is a registered trade mark of Imperial Chemical Industries).
- the NCS defines colour in terms of a cypher, the first two digits of which extend from 00 to 99 with 00 representing white (that is, the ultimate lightness) and 99 representing black with the intermediate values from 01 to 98 representing increasingly darker shades. Lighter shades therefore have a lower pair of first digits. It is preferred that the particulate material and the continuous layer have an NCS value at least 10 units lower than that of the surface.
- the particulate material is typically an inorganic material, which may be hydrated, such as plaster (gypsum), clay or the like, or non-hydrated, such as chalk or titanium dioxide.
- inorganic material such as plaster (gypsum), clay or the like, or non-hydrated, such as chalk or titanium dioxide.
- the intimate mixture used in the method according to the invention may be fire retardant.
- an organic particulate material such as hollow or alveolate beads of polystyrene or the like, or finely chopped fibres may be used. Suitable organic beads are described for example in European patent specification 0113435B (the contents of which are herein incorporated by reference).
- the particulate material is intimately mixed with the aqueous polymer binder, preferably together with thixotropising material, such as a polyurea adduct or bentonite clay, so as to provide a thixotropic mixture.
- the intimate mixture further comprises reinforcing fibres which can serve to strengthen a resulting coating provided on the opaque surface.
- the intimate mixture further comprises a drying retardant (a material which retards drying of the coating).
- a drying retardant a material which retards drying of the coating.
- a preferred drying retardant comprises a gel material.
- gels suitable for use as a drying retardant are cellulose-based products such as carboxymethyl cellulose, hydroxymethyl cellulose and methyl cellulose, acrylamide and acrylate polymers and copolymers, gelatin, polysaccharides, polyoxamers (polyoxyethylene-polyoxypropylene block copolymers), pectins and agar.
- the aqueous polymer binder is translucent.
- the binder comprises an aqueous dispersion of particles of polymer which are capable of coalescing as the dispersion dries so as to form a film of polymeric material.
- Suitable polymers include polymers and copolymers of esters such as methyl, ethyl, propyl and hexyl esters of acrylic or methacrylic acids optionally with acrylic or methacrylic acid or polymers or copolymers of vinyl esters including vinyl acetate. Certain copolymers of these types are now available as aqueous solutions as opposed to dispersions.
- the aqueous polymer binder may, in some cases, contain a minor proportion by weight of an organic solvent, which should be miscible with water.
- an organic solvent which should be miscible with water.
- An example of such a solvent is an alcohol.
- the intimate mixture comprises substantially equal amounts of an aqueous carrier, typically water, and the particulate material, the aqueous carrier and particulate material being present in excess of the polymer binder.
- a preferred intimate mixture comprises 4 to 6 parts by weight of the particulate material, 4 to 6 parts by weight of water optionally 0 to 2 parts organic (preferably alcoholic) co-solvent to assist film formation and 0.5 to 3 parts by weight of the aqueous polymer binder.
- the intimate mixture further comprises a drying retardant substantially as hereinbefore described
- the preferred intimate mixture includes 0.5 to 3 parts by weight of the drying retardant.
- the opaque surface may be provided by wood, plastics, metal or the like, and it should have a darker colour than the intimate mixture.
- the substrate comprises wood.
- the invention is particularly advantageous in enabling the production of an article having a grained appearance, such as that simulating limed oak, a pine effect, or the like.
- the substrate may, for example, be timber, or a fibre board such as MDF (medium density fibre board).
- the substrate comprises a building structure such as a wall panel, door, window frame or the like.
- the substrate may comprise a furniture component such as a fitted kitchen or bedroom unit, cupboard door, table, seat or the like.
- the substrate comprises at least one generally planar surface which is required to have a grained appearance as described above.
- the method involves applying an opaque protective or decorative coating to the substrate so as to provide the latter with a sufficiently dark opaque surface substantially as hereinbefore described.
- the opaque coating is preferably applied so as to substantially cover an exposed surface of the substrate.
- the opaque coating is water based, although organic solvent-based coatings may be employed.
- the method involves applying a translucent or transparent coating (such as a varnish, which is preferably water-based), over the discontinuous decorative coating described above.
- a translucent or transparent coating such as a varnish, which is preferably water-based
- the translucent or transparent coating may itself contain a stain material, pigment, dye or the like; alternatively a stain may be applied to the translucent or transparent coating.
- the opaque surface typically comprises a paint selected to provide a surface of the substrate with a desired base colour.
- a particularly preferred colour of the opaque surface is brown or beige, which can contrast with the lighter colour of the intimate mixture, and give the appearance of a naturally grained effect.
- Further preferred colours of the opaque surface include grey, or other background colours, such as blue, green, red, yellow or the like.
- the particulate material preferably has a white, cream, beige or brown colour which contrasts with the darker colour of the opaque surface. Examples of such colours are Y 00 R (usually written as "Y") up to Y 90 R according to the NCS definition referred to above.
- the particulate material may advantageously be mixed with colorants or the like to provide the intimate mixture with a desired colour.
- the colour combination of the opaque surface and the intimate mixture is advantageously selected to simulate a grained appearance of a desired wood effect.
- the decorative coating may be applied by brushing, pad spreading, rolling or spraying onto the opaque surface.
- the decorative coating is allowed to substantially dry (typically for at least one hour) before subsequent application of the intimate mixture thereon.
- the intimate mixture is preferably similarly applied to the opaque surface by brushing, pad spreading, rolling or spraying thereon.
- the intimate mixture is preferably applied to provide a substantially continuous layer having a thickness (prior to drying) in the range of 0.3 to 2mm.
- the thickness of the layer is selected to provide an appearance of a desired grain, a preferred thickness being about 0.5mm.
- removal of the continuous layer involves at least two stages.
- the continuous layer is discontinuously removed in non-linear streaks to give the opaque surface a veined, streaked or grained appearance, preferably using a comb member including a plurality of distal teeth, the comb member being drawn along the opaque surface to provide a veined appearance resembling that of natural grain.
- the tips of the teeth each respectively comprise a contact edge extending for about 2 to 5mm in the general direction of the comb member, the tips advantageously being spaced apart by about 2 to 10mm.
- the veined, grained or streaked surface is treated with at least one tool member having a plurality of spaced apart proud formations (typically of plastics or elastomeric material or the like), to selectively expose parts of the opaque surface.
- a tool member may be a rockable tool, which preferably comprises a convex face, such that the tool can be rocked about the convex face, with a plurality of substantially concentric raised arc formations on the convex face.
- the rockable tool is typically drawn along the opaque surface, advantageously in the general direction of the previously formed veined, grained or streaked appearance, so as to provide a heart grain effect on the opaque surface. This heart grain has been found to be especially aesthetically attractive. It is further preferred that as the rockable tool is drawn along the opaque surface, the convex face thereof is rocked in the direction of travel of the tool.
- the present invention is particularly advantageous in providing a decorated article, and a method of producing the same, which are largely free of organic solvents (except for small amounts of co-solvent).
- This aspect is environmentally beneficial, which is particularly advantageous when the resulting articles are found or used within building interiors.
- Tool 2 has an elongate edge strip 4 and an elongate grip strip 5.
- the tool 2 is of generally pear-shaped cross-section (see Figure 2a), comprising an elongate grip strip 5 and, integral therewith, a bulbous edge strip 4 on which is a working face 6, which is concave and arcuate, such that the tool can be rocked as it is drawn over the surface 3.
- Working face 6 (as shown in Figures 2b and 2c) has a series of alternating arcuate raised ridges 7 and furrows 8, which are concentric and centred on an intermediate part 9 of the working face 6. (The working face and the ridges and furrows are not shown in detail in Figure 1.)
- a wood panel suitable for use as a building door was primed with white spirit based alkyd paint to receive a base coating of paint thereon.
- the paint for the base coating selected was light brown or beige (resembling the colour of light oak).
- the base paint was brushed onto a major face of the panel so as to provide a complete coating thereon and allowed to dry for two hours.
- An intimate mixture was prepared containing four parts plaster, four parts water, one part film-forming of an aqueous polyacrylate dispersion, one part of a cellulose based gel, and a small amount of an alcohol based co-solvent.
- the intimate mixture was applied onto the base paint coating so as to form a continuous layer thereon.
- a comb was drawn across the continuous layer, along the length of the panel, so as to penetrate to the paint coating and to discontinuously remove the layer and expose the underlying paint, and thereby provide an irregular veined appearance resembling that of natural grain, with the grains extending in a longitudinal direction of the panel.
- a rocking tool having a convex face with raised arc formations was then drawn across the veined layer in the general direction of the previously provided veins; the convex face was drawn in the direction of travel of the rocking tool while at the same time slowly rocked, so as to produce a heart grain effect on the panel.
- the decorative grained layer was then allowed to dry, and a finishing varnish applied thereover.
- the result was an aesthetically pleasing, resembling the appearance of limed oak.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Battery Electrode And Active Subsutance (AREA)
Claims (10)
- Procédé de revêtement d'un substrat avec un revêtement décoratif simulant l'apparence du bois madré, ledit procédé consistant à appliquer, sur une surface opaque dudit substrat, une couche essentiellement continue comprenant un milieu aqueux qui contient un liant polymère, et un matériau particulaire, ne formant pas film, ledit matériau particulaire et ladite couche étant tous les deux d'une couleur plus claire que ladite surface opaque ;
à tirer le long de ladite surface, tandis que ladite couche reste à l'état liquide, un outil ayant une face s'étendant longitudinalement et présentant une section convexe transversalement à la direction longitudinale de celui-ci, ladite face ayant une pluralité de nervures espacées le long de ladite direction longitudinale, ledit outil étant basculé autour de ladite face lorsque l'outil est tiré le long de ladite surface, de façon à enlever de façon discontinue des parties de ladite couche et à exposer de façon sélective une partie de ladite surface et à produire une apparence décorative ressemblant aux fibres de coeur d'un arbre coupé. - Procédé selon la revendication 1, dans lequel lesdites nervures espacées sont en forme d'arc et centrées sur une partie intermédiaire de la longueur de ladite surface.
- Procédé selon la revendication 1 ou 2, dans lequel, avant de tirer ledit outil le long de ladite face, la couche continue est peignée, de façon à éliminer de façon discontinue des parties de la couche continue pour produire une apparence veinée ou madrée sur ladite surface.
- Procédé selon l'une quelconque des revendications 1 à 3, dans lequel ladite surface opaque comprend une couche de revêtement appliquée au préalable sur ledit substrat.
- Procédé selon la revendication 4, dans lequel ladite couche de revêtement appliquée au préalable a été appliquée comme une formulation aqueuse.
- Procédé selon l'une quelconque des revendications 1 à 5, dans lequel un revêtement translucide ou transparent est appliqué ultérieurement audit revêtement décoratif.
- Procédé selon l'une quelconque des revendications 1 à 6, dans lequel ledit matériau particulaire comprend un matériau minéral hydraté.
- Procédé selon l'une quelconque des revendications 1 à 7, dans lequel ledit liant comprend une suspension aqueuse d'un polymère acrylique.
- Procédé selon l'une quelconque des revendications 1 à 8, dans lequel ledit revêtement décoratif a une valeur NCS telle que définie ici d'au moins 10 unités de moins que celle de la surface opaque.
- Procédé selon l'une quelconque des revendications 1 à 9, dans lequel ledit milieu aqueux est essentiellement exempt de solvants organiques.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939301394A GB9301394D0 (en) | 1993-01-25 | 1993-01-25 | A decorated surface |
GB9301394 | 1993-01-25 | ||
PCT/GB1994/000136 WO1994016910A1 (fr) | 1993-01-25 | 1994-01-24 | Procede d'application d'un revetement decoratif sur un substrat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0680413A1 EP0680413A1 (fr) | 1995-11-08 |
EP0680413B1 true EP0680413B1 (fr) | 1996-12-04 |
Family
ID=10729259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94904714A Expired - Lifetime EP0680413B1 (fr) | 1993-01-25 | 1994-01-24 | Procede d'application d'un revetement decoratif sur un substrat |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0680413B1 (fr) |
AT (1) | ATE145865T1 (fr) |
AU (1) | AU676708B2 (fr) |
CA (1) | CA2154650A1 (fr) |
DE (1) | DE69401052T2 (fr) |
DK (1) | DK0680413T3 (fr) |
ES (1) | ES2097634T3 (fr) |
GB (1) | GB9301394D0 (fr) |
WO (1) | WO1994016910A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9417186D0 (en) * | 1994-08-25 | 1994-10-12 | Prosser Edward C | A decorative tool |
US6465072B1 (en) | 1993-01-25 | 2002-10-15 | Prosser Edward C. | Blank for a decorator's tool |
ES2123414B1 (es) * | 1996-03-05 | 1999-11-16 | Newlac Recubrimientos Superfic | Procedimiento para el tratamiento de superficies de aluminio, |
IE970351A1 (en) * | 1997-05-16 | 1998-11-18 | Alfrank Designs Intellectual P | A process for the treatment and manufacture of furniture and¹furnishings |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE375218C (de) * | 1920-10-16 | 1923-05-11 | Robert Oldenbruch | Verfahren zur Imitation von Kernpartien tiefporiger Hoelzer |
US2877588A (en) * | 1954-03-18 | 1959-03-17 | Carl J Ernst | Method of graining |
US3904791A (en) * | 1971-09-10 | 1975-09-09 | Elizabeth M Iverson | Ornamental coating method and articles |
US4921891A (en) * | 1986-12-10 | 1990-05-01 | Di Giorgio Corporation | Wood coating composition and process of use thereof |
-
1993
- 1993-01-25 GB GB939301394A patent/GB9301394D0/en active Pending
-
1994
- 1994-01-24 AU AU58645/94A patent/AU676708B2/en not_active Ceased
- 1994-01-24 EP EP94904714A patent/EP0680413B1/fr not_active Expired - Lifetime
- 1994-01-24 ES ES94904714T patent/ES2097634T3/es not_active Expired - Lifetime
- 1994-01-24 CA CA002154650A patent/CA2154650A1/fr not_active Abandoned
- 1994-01-24 DK DK94904714.6T patent/DK0680413T3/da active
- 1994-01-24 AT AT94904714T patent/ATE145865T1/de not_active IP Right Cessation
- 1994-01-24 WO PCT/GB1994/000136 patent/WO1994016910A1/fr active IP Right Grant
- 1994-01-24 DE DE69401052T patent/DE69401052T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU5864594A (en) | 1994-08-15 |
WO1994016910A1 (fr) | 1994-08-04 |
CA2154650A1 (fr) | 1994-08-04 |
ES2097634T3 (es) | 1997-04-01 |
ATE145865T1 (de) | 1996-12-15 |
GB9301394D0 (en) | 1993-03-17 |
DK0680413T3 (da) | 1997-06-02 |
DE69401052D1 (de) | 1997-01-16 |
DE69401052T2 (de) | 1997-05-28 |
EP0680413A1 (fr) | 1995-11-08 |
AU676708B2 (en) | 1997-03-20 |
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