|
|
Paint: :''For information on the United States borough, see Paint, Pennsylvania.'' Paint is the general term for a family of products used to protect and add color to an object or surface by covering it with a pigmented coating. As a verb, painting is the application of paint. One who paints is called a painter. Paint is very common and is applied to almost every kind of object. It is a method of producing art, an industrial coating, a driving aid (lane markings), a preservative (rust-prone steel auto bodies), on interior walls, on exterior surfaces exposed to weather, and myriad other uses. With art, it has also been used for centuries in the creation of great works, such as Leonardo da Vinci's ''Mona Lisa'' and Vincent Van Gogh's ''Starry Night.'' ==Components== There are generally three parts to a paint: binder, diluent and additives. However, only one of these components, the binder, is absolutely required. The binder is that part of the vehicle which eventually solidifies to form the dried paint film. The diluent serves to adjust the viscosity of the paint. It is volatile and does not become part of the paint film. Anything else is an additive. Typical binders include synthetic or natural resins such as acrylics, polyurethanes, polyesters, melamines, oils, or latex. Typical diluents include organic solvents such as alcohols, ketones, esters, glycol ethers, and the like. Water is a common diluent. Sometimes volatile low-molecular weight synthetic resins also serve as diluents. Typical additives include pigments, dyes, catalysts, thickeners, stabilizers, emulsifers, texturizers, adhesion promotors, flatteners (de-glossing agents), and the like. After application, the paint solidifies and becomes tack-free. Depending on the type of binder, this hardening may be a result of curing (polymerization), evaporation, or even cooling. In oil-based paint, curing takes the form of oxidation, for example oxidation of linseed oil to form linoxin to create a varnish. Other common cured films are prepared from crosslinkers, such as polyurethane or melamine resins, reacted with acrylic polyester or polyurethane resins, often in the presence of a catalyst which serves to make the curing reaction proceed more quickly or under milder conditions. These cured-film paints can be either solvent-borne or waterborne. Other waterborne paints are emulsions of solid binders in water. When the diluent evaporates, the molecules of the binder coalesce to form a solid film. Still other films are formed by cooling of the binder. For example, encaustic or wax paints are liquid when warm, and harden upon cooling. ==Art== Since the time of the Renaissance, siccative (drying) oil paints, primarily linseed oil, have been the most commonly used kind of paints in fine art applications; oil paint is still common today. However, in the 20th century, water-based paints, including watercolors and acrylic paints, became very popular with the development of latex and acrylic pigment suspensions. Milk paints (also called casein), where the medium is derived from milk, were popular in the 19th century and are still available today. Egg tempera (where the medium is egg yolk) is still in use as well, as are encaustic wax-based paints. Gouache is a variety of watercolor paint which was also used in the Middle Ages and Renaissance for manuscript illumination. The pigment was often made from ground semiprecious stones such as lapis lazuli and the binder made from either gum arabic or egg white. Gouache is commercially available today. Poster paint has been used primarily in the creation of student works, or by children. ==Pigment== :''Main article: Pigment'' Pigments, usually insoluble powders, are used both to provide color, and to make paint opaque, thus protecting the substrate from the harmful effects of ultraviolet light while also increasing a paint's hiding power. Some pigments are toxic, such as those used in lead paint. Paint manufacturers replaced lead white with a less toxic substitute, titanium white (Titanium Dioxide) which was first used in paints in the 19th century. The titanium white used in most paints today is often coated with silicon or aluminum oxides for better durability. Some newer paints can produce effects where the color changes depending on the angle (orientation) at which it is viewed. Modern United States and Canada currency, specifically the newer higher denomination notes, have this effect on them. This effect is produced by having pigment molecules that are long and thin and are meant to dry in a specific orientation, with different ends of the molecule being different colors. ==Application== Paint can be applied as a liquid, as a solid, or as a gaseous suspension. Techniques vary depending on the practical or artistic results desired. In the liquid application, paint can be applied by direct application using Brush, paint rollers, Palette knife, other instruments, or body parts. Examples of body parts include fingerpainting, where the paint is applied by hand, whole-body painting (popular in the 1960s avant-garde movement), and cave painting, in which a pigment (usually finely-ground charcoal) is held in the mouth and spat at a wall (NOTE: DO NOT DO THIS with modern paints, they are highly toxic and this might cause death or permanent injury). Paint may also be applied by flipping or spraying the paint, dripping, or by dipping an object in paint. As a solid (usually in industrial and automotive applications), the paint is applied as a very fine powder, then baked at high temperature. This melts the powder and causes it to adhere (stick) to the surface. The reasons for doing this involve the chemistries of the paint, the surface itself, and perhaps even the chemistry of the substrate (the overall object being painted). As a gas or as a gaseous suspension, the paint is suspended in solid or liquid form in a gas that is sprayed on an object. The paint sticks to the object. The reasons for doing this include: *the application mechanism is air and thus no solid object ever touches the object being painted; *the distribution of the paint is very uniform so there are no sharp lines *it is possible to deliver very small amounts of paint or to paint very slowly; *a chemical (typically a solvent) can sprayed along with the paint to dissolve together both the delivered paint and the chemicals on the surface of the object being painted; *some chemical reactions in paint involve the orientation of the paint molecules. Paint is often applied to walls with a roller. Rollers generally have a handle that allows for different lengths of poles which can be attached to allow for painting at different heights. Generally, roller application takes two coats for even color. A roller with a thicker nap is used to apply paint on uneven surfaces. Edges are often finished with an angled brush. ==Product Variants== *Wood stain is a type of paint that is very "thin," that is, low in viscosity, and formulated so that the pigment penetrates the surface rather than remaining in a film on top of the surface. Stain is predominantly pigment or dye and solvent with little binder, designed primarily to add color without providing a surface coating. *Varnish and shellac provide a protective coating without changing the color. They are paints without pigment. *Lacquer is usually a fast-drying solvent-based paint or varnish that produces an especially hard, durable finish. *An enamel paint is a paint that dries to an especially hard, usually glossy, finish. Enamel can be made by adding varnish to oil-based paint. *Fingerpaint *Inks are similar to paints, except they are typically made using dyes exclusively (no pigments), and are designed so as not to leave a thick film of binder. *Titanium Dioxide is extensively used for both house paint and artist's paint, because it is permanent and has good covering power. Titanium oxide pigment accounts for the largest use of the element. Titanium paint is an excellent reflector of infrared, and is extensively used in solar observatories where heat causes poor seeing conditions. ==History== Ancient painted walls, to be seen at Dendara, Egypt, although exposed for many ages to the open air, still possess a perfect brilliancy of color, as vivid as when painted, perhaps 2000 years ago. The Egyptians mixed their colors with some gummy substance, and applied them detached from each other without any blending or mixture. They appeared to have used six colors: white, black, blue, red, yellow, and green. They first covered the field entirely with white, upon which they traced the design in black, leaving out the lights of the ground color. They used minium for red, and generally of a dark tinge. Pliny the Elder mentions some painted ceilings in his day in the town of Ardea, which had been executed at a date prior to the foundation of Rome. He expresses great surprise and admiration at their freshness, after the lapse of so many centuries. :''See also'' lacquer, varnish, fresco ==External Links== *[http://www.ibiblio.org/ecolandtech/rural-skills/homemade/homemade-paint 20 recipes for homemade paint] (text) *[http://www.ravenna.portage.k12.oh.us/schools/childcare/hpaint.htm Homemade Paint Recipes for Children] *For a glossary of terms used in the paint industry go to [http://www.occa.org.za Oil & Colour Chemists' Association] and click on Paintopedia. Art materials PaintIs 'solvent' the right word for the liquid suspending the pigment? The word typically used in art and art history contexts is medium -- of course, artists and art historians are notoriously obtuse about science, so if 'solvent' is the technical term in that context, all well and good, and we just need a sentence to explain "medium/media" --MichaelTinkler. ---- I question the definition given in the first paragraph, since stains for wood also color the surface of an object. I'm not sure if stains qualify as "paints"; the entries I'm seeing for the two online and in the OAD seem to avoid each other nicely. ---- Good questions; I am by no means an artist or chemist :-) I'll work in "medium". I honestly did not even think of stains. Please feel free to edit as necessary! --User:Alan Millar ----- Various ideas for this article. I'm putting them here in the waystation first because I'm not sure of their merits. *mention of relative ease of use of different paints--subjective, yes, but almost everyone agrees that oil is more difficult than acrylic, and it doesn't take a genius to see that watercolor is extremely difficult--one stray brushstroke and it's ruined; you can't stop the flow of water. Compare this to acrylic and oil, which can at least be scraped off and / or painted over. Adding more paint in those two media does not affect the paint already on the object *mention of Bob Ross, the only acrylic artist I can think of at the moment. of course caveats about his general critical drubbings, but he *has* been immensely popular, and I think being able to turn a blank canvas into a finished painting in <60 minutes is remarkable. Also he was a do-it-yourselfer and a proletariat. :-) *mention of wood paint, as compared to wood stain--one of the few paints or maybe the only one which can generally be removed completely and the original object restored to its original state, or very near it. Try that with a canvas. :-) *mention of varnishes, lacquers, other means of preservations of paintings *mention of restorations of paintings -- way out of my league here *more info on milk paint. I've never heard of it ---- WELL: ''it doesn't take a genius to see that watercolor is extremely difficult--one stray brushstroke and it's ruined'' is certainly ''historically'' true (like a friend of mine says, "It's as true as it ever was" :-) but really is no longer, thanks (in the main) to quality paper. Turns out that most watercolors remain water soluable (DO place watercolors behind glass!) forever, and so you can lift off bits with sponges or stiff-bristle brushes, or scrape down to the paper with a knife. There are "staining" colors, which as the name suggests, stain the paper so it's harder to remove them completely. "Milk" paint is usually referred to as casein. Finally, anyone whose seen Bob Ross' products for sale might dispute characterizing him as a "pure" proletariat :-) ---- Microsoft Paint should be discussed here like this but perhaps there should be its own article? --User:Daniel C. Boyer 19:09, 17 Sep 2003 (UTC) ---- If anybody has some info about environmental impacts of paint and how to dispose of paint containers, paint residues, etc..., please contribute; it would be very valuable. For instance, I assume that cleaning a brush filled with latex paint in the sink is not very environmentally friendly. Alternatives should be offered (if any exist).--User:Deragon 20:19, 8 Aug 2004 (UTC) See other meanings of words starting from letter: PPA | PB | PC | PD | PE | PF | PG | PH | PI | PJ | PK | PL | PM | PN | PO | PR | PS | PT | PU | PW | PX | PY | PZ |Words begining with Paint: Paint Paint Paint,_PA Paint,_Pennsylvania Paint-Ball Paint-ball Paint.NET Paint.NET Paint.Net Paint.net PaintBall Paintball Paintball Paintball Paintball-Net Paintball-net Paintballing Paintballnet Paintballs Paintball_guns Paintball_net Paintbox Paintbrush_for_Windows Painted PaintedTongue.jpeg Painted_Angels Painted_Apple_Moth Painted_Bunting Painted_Desert Painted_fish Painted_fish Painted_glass Painted_Hall,_Greenwich Painted_Ladies Painted_ladies Painted_Lady Painted_Lady Painted_lady Painted_Porch Painted_Post,_New_York Painted_Rock_Reservoir,_Arizona Painted_Rock_Reservoir,_AZ Painted_Smiles Painted_Snipe Painted_snipe Painted_Stoa Painted_Stork Painted_stork Painted_tongue Painted_Turtle Painted_Whore Painted_Whore Painter Painter Painter's_algorithm Painter's_algorithm Painter's_algorithm.psp.bz2 Painter's_colic Painter,_VA Painter,_Virginia Painter-Stainers'_Company Painterly Painters Painters Painters Painters_algorithm Painters_by_nationality Painters_by_nationality Painters_by_period Painter_and_Limner Painter_Weber_Max Paintin'_The_Town_Brown:_Ween_Live_1990-1998 PainTing PaintIng Painting Painting Painting Painting Painting Painting-knife Paintings Paintings Paintings Paintings,_record_prices Paintings,_Transpressionism Paintings_by_Charles_Marion_Russell Paintings_containing_nudity Paintings_of_the_Blessed_Virgin_Mary Painting_basic_topics Painting_basic_topics Painting_for_Posterity? Painting_of_the_United_States Painting_of_Wawona_Hotel_by_Thomas_Hill.jpeg Painting_Oil Painting_Oil Painting_oil Painting_oil Painting_style Painting_style Painting_Styles Painting_styles Painting_tutorials Paintmash Paints Paintshop_Pro Paintsville Paintsville,_Kentucky Paintsville,_KY Paint_(disambiguation) Paint_Ball Paint_ball Paint_balling Paint_by_numbers Paint_marker Paint_NET Paint_program Paint_Rock Paint_Rock,_AL Paint_Rock,_Alabama Paint_Rock,_Alabama Paint_Rock,_Texas Paint_Rock,_TX Paint_scheme Paint_Shop_Pro Paint_Shop_Pro Paint_stripper Paint_The_Sky_With_Stars Paint_The_Sky_With_Stars Paint_thinner Paint_Township,_Clarion_County,_PA Paint_Township,_Clarion_County,_Pennsylvania Paint_Township,_PA Paint_Township,_Pennsylvania Paint_Township,_Somerset_County,_PA Paint_Township,_Somerset_County,_Pennsylvania Paint_Your_Wagon |
These materials are based on Wikipedia and licensed under the GNU FDL
YouTube.com videos better site than Turbo Tax 2007 |
|
|