A natural spot of a color different from the gound.
Discoloured areas on film or paper, usually caused by contaminated developing solutions or by insufficient fixing, washing, or agitation.
Solution used to give color to one or more parts of the cell, allowing the cell to be seen easily under the microscope. An example is the nuclear fast red stain used in the UDS assay to stain the nuclei pink so that nuclei can be readily identified.
in ceramics, any oxide or prepared pigment used for coloring clay, slips, or glazes; in woodworking, any transparent oil or water-based pigment used to alter the natural color of wood.
A translucent finish for wood that can be clear or tinted, allowing the grain and figure of the wood to show through the finish. Stains do not provide the same level of protection afforded by a varnish or paint finish.
A chemical used in microscopy to identify certain types of cells or structures.
A specific area of discolored soil within a unit of excavation or within a feature.
A variation from the natural colour of the wood or a discolouration that may be caused by micro-organisms, metal or chemicals. The term also applies to materials used to impart colour to wood.
A discoloration occurring in or on flooring of any color other than the natural color of the species. For instance, blue stain, brown stain.
Describes the initial stages of decay in hardwoods. Not usually allowed in most grades unless it will dress out when wood is surfaced to standard thickness.
A discoloration in wood caused by a fungus, minerals or chemicals. A die or pigment used to discolor wood.
A discolouration in wood, other than its natural colour, that may be caused by such diverse agencies as micro-organisms, metal, or chemicals. The term also applies to a solution of colouring matter in a vehicle designed to penetrate a surface & colour the wood, without hiding surface characteristics & providing some protection.
A discolouration in wood that may be caused by such diverse agencies as micro-organisms, metal or chemicals. The term also applies to materials used to impart colour to wood.
Oxide and water, used as a colorant for bisque wear. Stoneware - All ceramic wear fired between 2,100 and 2,300 degrees.
An unnatural discolouration such as blue stain, brown stain, etc.
Kundu uses the same process of staining wood that has been used throughout Asia for ages.
a soiled or discolored appearance; "the wine left a dark stain"
(microscopy) a dye or other coloring material that is used in microscopy to make structures visible
color with a liquid dye or tint; "Stain this table a beautiful walnut color"; "people knew how to stain glass a beautiful blue in the middle ages"
color for microscopic study; "The laboratory worker dyed the specimen"
a coating designed to give any given substrate color and to enhance the natural grain structure of natural wood
a discoloration caused by chemical reaction or by penetration of discoloring material into the dye sites of the carpet yarns
a discolored area that may be on clothes
a dye made into a solution, an aqueous (water) or alcohol solution, and used to treat a specimen for microscopic examination
a soiled surface or discolored area that might be on clothes
a wood-colored finish that is slightly transparent to allow the natural color and grain of the wood to show through
Any substance applied directly to the wood to change its colour. Generally a dye or pigment dissolved or suspended in a vehicle and used to impart colour directly to wood.
A material (either water or oil based) used to color surfaces, it is absorbed into the surface material unlike Paint which is applyed as a top film to the surface material
A finish applied to natural wood cabinets to enhance color and protection.
Finish applied with a chemical that provide color and highlight wood grains.
Oxide and water, used as a colorant for bisque wear. Stipple punching An engraving technique where small dots are used to fill larger regions of a transfer ware pattern. The dots are created with a sharp punch that is driven into the copper plate. Stoke China Name used by Josiah Spode for English bone china. Stone China A type of fine, pale grey porcelainous stoneware that is hard, dense and sometimes translucent. Developed by John and William Turner in 1800, it was reintroduced and popularised by Miles Mason and Josiah Spode around 1812. Terracotta Unglazed porous earthenwares.
Solution primarily to create color effects rather than form a protective coating. Is transparent or semi-opaque. Colors without completely obscuring the surface's grain.
Unfired colors used for decorating.
Discoloration in lumber caused by decay, fungi, etc. Normally avoidable through proper handling in the cutting and drying stages. Also, a finishing substance for coloring wood.
A partly transparent coating that can colour wood without obscuring the grain and/or the texture. Also refers to materials that soil the surface of a coating.
A discoloration of a surface to which tape has been applied.
Discoloration of spa or pool surfaces most often caused by metal corrosion of circulation system due to low pH. Sequestering or chelating agent will remove stains, for tough stains acid wash may be necessary.
Color changes in the log when it has been stored too long. Direct radiation from the sun or too dry an atmosphere furthers this development.
Sometimes a single coloring oxide, but usually a combination of oxides, plus alumina, flint, and a fluxing compound. This mixture is calcined and then finely ground and washed. The purpose is to form a stable coloring agent not likely to be altered by the action of the glaze or heat. While stains are employed as glaze colorants, their chief use is as overglaze and underglaze decorations and body colorants.
A dis-coloration which cannot be removed by thorough cleaning.
A discoloration or a colored deposit on the walls or bottom of a swimming pool or spa. Most often stains are metallic oxides, hydroxides, carbonates, sulfates, silicates and phosphates of such metals as iron, copper and manganese. They may appear as green, gray, brown or black. They may even discolor the water. Sometimes a sequestering agent or chelating agent will remove them. If not, usually an acid wash is necessary to remove them from the walls and bottom. The metals get in the water because the pH was too low or someone has added a low-pH chemical directly into the circulation system. The low-pH chemical then dissolves a small amount of metal from the equipment. Then, under certain conditions, the metals begin to come out of solution and deposit or stain the walls and bottom. Stains are sometimes confused with scale which is a deposit of calcium or magnesium on the walls, bottom or in the equipment.
Color changes in the teeth.
A liquid mixture to color wood. Made of 4 parts: Vehicle (water or solvent), Colorant (pigments and dyes), Binder (resin), Additives (solvents to control drying).
The discolored parts of a print or film caused by insufficient fixing, washing or agitation during processing, or by contaminated processing solutions.
Materials used to impart color to wood.
A pigment, either vegetal or mineral, applied to the outside of a pipe to acheive a particular coloring.
A discoloration in wood that may be caused by microorganisms, metal, or chemicals. The term also applies to materials used to impart colors to wood. Blue –A bluish or grayish discoloration in the sapwood caused by the growth of certain dark-colored fungi. Sap - A discoloration in the sapwood caused by the growth of fungi. Sapstain is often blue but can also be red, purple and other colours.
A thin type of finish that protects and colors wood. Available in solid and transparent tones. Used to bring out the grain and surface of the wood.
A compound added to glazes to add coloring. Sometimes applied directly onto a clay body without mixing with a vitrifying glaze. See also glaze, vitrification.
A soiled or discolored appearance caused by a foreign substance or uneven aging.
Related Article 1) A discoloration in wood caused by a fungus or chemicals. 2) A die or pigment used to color wood.
A discolouration or a coloured deposit on the walls or bottom of a swimming pool. Stains are usually the result of metals such as iron, copper or manganese in the water. The stains may be green, gray, brown or black. They may discolour the water without affecting the clarity. Sometimes a sequestering agent, chelating agent or commercial stain-remover may remove them. If that doesn't work, the easiest way to remove the stains is to drain and acid wash the pool.
A solution or suspension of coloring matter in a vehicle de-signed primarily to be applied to create color effects rather than to form a protective coating. A transparent or semi-opaque coating that colors without completely obscuring the grain of the surface.
A substance used to give wood a specific color.
A form of oil paint, very thin in consistency, intended for coloring wood with rough surfaces, such as shingles, without forming a coating of significant thickness or gloss.
A natural or synthetic chemical used to color and highlight wood grain; can be water, oil or spirit-based.
Underglazes and overglaze enamals get their color from specially formulated and commercially produced stains. Simple oxides often account for some colors. But, most come from stains.
A solution designed to color a surface without hiding it. Solid color and latex stains are available. Stains may be latex or oil-based.
Any oxide of prepared pigment used for coloring bodies, slips or glazes.
1. Coloring of dyes in a drying oil or water base which is used as both a protective and ornamental covering for certain materials. 2. A discoloration or change in pigment.
1- To apply color to a surface. 2- The pigmented material applied to a surface to provide a semi-transparent color.
A stain is a discoloration that distinguishes itself from the material on which it is found. It can be unintentional, in the case of domestic stains on fabric, cloth, or other material, or it can be intentional. Stains are used intentionally in a variety of fields, including research (biochemical staining), technology (metal staining), and art (wood staining, stained glass.)