- castor leather
- • велур
English-Bulgarian polytechnical dictionary . 2013.
castor leather
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Castor oil — is a vegetable oil obtained from the castor bean (technically castor seed as the castor plant, Ricinus communis , is not a member of the bean family). Castor oil (CAS number 8001 79 4) is a colorless to very pale yellow liquid with mild or no… … Wikipedia
Castor wax — Castor wax, also called hydrogenated castor oil, is a hard, brittle, vegetable wax. It is produced by the hydrogenation (chemical combination with hydrogen) of pure castor oil, in the presence of a nickel catalyst. It is odorless and insoluble in … Wikipedia
Oiling (leather processing) — Oiling is a process whereby leather is hand coated (usually by brush or tampon) with either a raw (un emulsified) oil or a combination of raw oil, blended with emulsified oils and a penetrating aid. Hand oils can include fragrant oils that help… … Wikipedia
Castoreum — is the name given to the exudate from the castor sacs of the mature North American Beaver Castor canadensis and the European Beaver, Castor fiber . Within the zoological realm, castoreum is the yellowish secretion of the castor sac in combination … Wikipedia
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Oiling — is a process whereby leather is hand coated (usually by brush or tampon) with either a raw (un emulsified) oil or a combination of raw oil, blended with emulsified oils and a penetrating aid. Hand oils can include fragrant oils that help with the … Wikipedia
oil — oilless, adj. oillessness, n. oillike, adj. /oyl/, n. 1. any of a large class of substances typically unctuous, viscous, combustible, liquid at ordinary temperatures, and soluble in ether or alcohol but not in water: used for anointing, perfuming … Universalium
industrial polymers, major — Introduction chemical compounds used in the manufacture of synthetic industrial materials. In the commercial production of plastics, elastomers, man made fibres, adhesives, and surface coatings, a tremendous variety of polymers are… … Universalium
Dicarboxylic acid — Dicarboxylic acids are organic compounds that contain two carboxylic acid functional groups. In molecular formulae for dicarboxylic acids, these groups are often written as HOOC R COOH, where R may be an alkyl, alkenyl, alkynyl, or aryl group.… … Wikipedia
