Search results
Results from the WOW.Com Content Network
Wood stain is a type of paint used to colour wood.It consists of colourants dissolved and/or suspended in a vehicle or solvent.Vehicle is the preferred term, as the contents of a stain may not be truly dissolved in the vehicle, but rather suspended, and thus the vehicle may not be a true solvent.
Chemical staining of wood is rarely carried out because it is easier to colour wood using dye or pigmented stain, however, ammonia fuming is a chemical staining method that is still occasionally used to darken woods such as oak that contain a lot of tannins. Staining of wood is difficult to control because some parts of the wood absorb more ...
Heterospory evolved due to natural selection that favoured an increase in propagule size compared with the smaller spores of homosporous plants. [2] Heterosporous plants, similar to anisosporic plants [clarification needed], produce two different sized spores in separate sporangia that develop into separate male and female gametophytes.
Solvent dyes, for wood staining and producing colored lacquers, solvent inks, coloring oils, waxes. Contrast dyes, injected for magnetic resonance imaging, are essentially the same as clothing dye except they are coupled to an agent that has strong paramagnetic properties. [22] Mayhems dye, used in water cooling for looks, often rebranded RIT dye
When free hydroxyl groups are transformed to acetoxy groups, the ability of the wood to absorb water is greatly reduced, rendering the wood more dimensionally stable and, because it is no longer digestible, extremely durable. In general, softwoods naturally have an acetyl content from 0.5 to 1.5% and more durable hardwoods from 2 to 4.5%.
Dyes are color-bearing organic compounds that can be dissolved in water or another liquid so that they will penetrate fibers. [19] dyebath A dyebath is a solution of dye and water or other liquid in which textiles are dyed. [20] dyed in the wool Dyed in the wool or dyed in the fleece refers to fibers that are dyed prior to spinning.
The California School Food Safety Act, which is a follow-up to the California Food Safety Act and focuses on foods served in schools, will ban red dye No. 40, yellow dyes Nos. 5 and 6, blue dyes ...
A dyewood is any of a number of varieties of wood which provide dyes for textiles and other purposes. Among the more important are: Brazilwood or Brazil from Brazil, producing a red dye. Catechu or cutch from Acacia wood, producing a dark brown dye. [1] Old Fustic from India and Africa, producing a yellow dye. [2] Logwood from Belize, producing ...