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BACKING: The primary component of tape upon which the
adhesive is applied. It may be any continuous material, such as
cloth, film, treated paper, metal foil, laminated materials, etc.
BACKSIDE: The side opposite that upon which the adhesive
is coated.
BACKSIZE: (See "Release
Coating"). A treatment sometimes applied to the backside
of a tape as a coating which benefits the tape in one or more
of the following ways:
a. Provides a controlled level of unwinding adhesion of the
roll.
b.Increases moisture resistance or solvent resistance.
c.Gives special properties such as smoothness, gloss, printability,
color.
Pick Off: Particles of the release coat that stick to
the adhesive on unwind.
BAKE RESISTANCE: The resistance of a tape to degradation
during the heat treatment of a painted part or electrical component
to which tape has been applied.
BANBURY: A type of mixing machine to soften rubber used
to produce pressure-sensitive adhesive. (Registered Trademark
of Farrel Co. Division of USM Corp.)
BANDOL-RING: The taping of the leads of components for
automatic sequencing equipment; also used with rivets, screws
and small parts. The reels of taped components resemble bandoliers
of aluminum for machine guns.
BEAMS: Large reels on which glass, rayon or other yarns
are wound; used in the manufacture of strapping tapes.
BIAXIAL-ORIENTATION: This is done to increase the tensile
strength of a film in both the machine (transverse) directions.
The film is stretched and heat-set.
BI-DIRECTIONAL: A term applied to strapping tapes in which
cross-directional yarns are incorporated to provide increased
longitudinal tear resistance-which aids one-piece removal of the
tape.
BLEEDING: Penetration of an undesirable substance through
the tape onto the surface to which the tape is applied, or onto
the tape backside.
BLEED THROUGH: See "Bleeding".
BLOCKING: The sticking together of layers of tape in a
roll, to a degree preventing separation without damage, which
can occur under pressure or in a storage.
BLOWN MASS COAT: A minute elevation on the surface of the
mass coat, somewhat resembling a blister, caused by the manner
in which the mass is applied or dried. Does not usually make the
tape defective.
BOND: The adhesion produced by contact of a tape with a
surface to which it has been applied. Commonly used to refer only
to thermoplastic tapes.
BOND STRENGTH: The amount of force required to break the
joined area of two pieces of material. Force could be applied
through tension, compression, flexure, peel or shear methods.
BOXBOARD WETTING: The ability of a tape to adhere instantly
to a boxboard surface with very little application pressure.
BUCKLING: See "Roll
Deformation".
BUNDLE ROLL: The large master rolls of coated tape from
which individual slit rolls are produced.
BURSTING STRENGTH: The strength of a tape in resisting
forces applied evenly, perpendicular to the tape surface.
BUTADIENE: A chemical building block from which many types
of synthetic rubber are made. See "Styrene
Butadiene".
BUTT SPLICE: A splice made by joining tape, end to end,
without overlapping. The splice is made by using a thin tape to
join the tapes to be spliced.
