In a general sense, lacquer is a clear or coloured
coating, that dries by solvent evaporation and often a curing process as well that produces a hard, durable finish, in any sheen level from ultra
matte to high
gloss and that can be further polished as required. In a narrower sense, lacquer consists of a
resin dissolved in a fast-drying
solvent which is a mixture of
naphtha,
xylene,
toluene, and
ketones, including
acetone. The word lacquer comes from the
lac insect (Laccifer lacca, formerly Coccus lacca), whose secretions have been historically used to make lacquer and
shellac. In America today the word lacquer refers to
nitrocellulose, and little else; most other coatings are known as
varnish. In the UK however, the general rule is "if you spray it, it's lacquer - if you brush it, it's varnish". All factory finished furniture these days is therefore lacquer (pigmented, tinted or clear). Another ancient form of lacquerwork is done by heating shellac and adding powder of natural dyes. On hardening the lac is touched to a rotating wood on a lathe. The friction between the lathe and the wood creates heat which causes the shellac to melt and stick to the surface. This technique is today practised in India, Pakistan and Afghanistan. The artisan create many beautiful colors and patterns using simple machine or hand operated lathes.
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LACCA. LACCHE
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