padding
1. The blank leaves added at the end of a thin
publication so as to form a volume with sufficient
thickness to be rounded and backed and/or to be
lettered on the spine. Unfortunately, the paper
used for this purpose is usually of an inferior
quality, and becomes embrittled and transfers its
acidity to the leaves of the publication. Also
called "filler," or "filling." 2. A method of
securing ruled, printed or blank leaves by the
application of a padding compound, and sometimes a
cloth or other reinforcing liner, to one edge
(frequently the top) of the sheets which have been
jogged even on the binding edge and placed under
pressure. Special padding troughs, clamps and
presses are used to facilitate padding large
quantities at one time. See also: PAD COUNTER (2) ;PADDING COMPOUND . 3.
A method of applying dyestuff to the grain surface
of a leather or tawed skin, particularly the
latter, in cases where it is not feasible to
immerse the skins in the dyestuff liquor because
of the increased fullness and decreased stretch
which will result from such immersion. (179 , 196 , 234 , 291 )
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