STOCK JCP V10
LIGHT-COLORED BROWN (KRAFT SHADE) ENVELOPES
Envelope February 1, 1999
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Use information: This paragraph is informational only and is not
exclusively definitive of the end use.
For the insertion of correspondences either manually or automated
equipment. Suitable for letterpress and offset printing, processing in
laser printers, automated mail sorting equipment. Printed matter may
include text and line illustrations.
Stock: 100 pct sulphate pulp.
Note: Not less than 20 pct postconsumer fiber. Any percent over 20
percentage points is encouraged, provided that the requirements of
this Standard are met.
Grammage (g/m\2\).................. 90 105 120 150
Basis weight: 17 by 22 inches, 500 24 28 32 40
sheets (pounds)..................
A tolerance of 5 pct shall be allowed.
Bursting strength: Average,
not less than (kPa)............... 260 300 340 410
Equivalent (lb/in\2\)............. 38 44 50 60
Writing quality: Characters written with pen and ink shall be clear cut
and free from excessive feathering.
Flap adhesive: The remoistenable adhesive on the sealing flaps of the
envelopes shall have a minimum thickness of 0.015 mm (0.0006 inch),
uniformly applied. The flap shall not stick to the body of the
envelope, but shall be capable of being quickly and securely sealed
using 2.3 kg (5 pounds) pressure after moistening. When opened not
less than 15 seconds or more than 20 seconds after sealing, the flap
shall pull fibers from the body of the envelope over the entire
adhesive area.
The adhesive shall be able to resist the heat and pressure of common
office laser printers, so the flap adhesive does not become soft and
tacky causing the flap to stick to the body of the envelope.
General appearance: Envelopes shall conform to the standard sample(s)
adopted by the Government.
Color: Shall be light-colored brown kraft shade. The envelopes in the
order shall be uniform.
Finish: Envelope stock shall have a smooth-finish.
Cleanliness: The dirt count for each side of the paper shall not
exceed 250 specks per square meter. No envelope (up to
300 cm\2\ in size) shall contain no more than two obvious and
objectionable with an equivalent area of 0.25 mm\2\ greater on the
face of the envelope. (The number of particles permitted is
proportionately higher for larger envelopes.)
Sampling and testing: Shall be conducted in accordance with standards in
Part 2, Government Paper Specification Standards.
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Unless otherwise specified, the following is automatically waived when
printing or duplicating is to be accomplished on commercial contract
Construction: Shall be specified by the ordering agency. (See drawings
in Part 3.)
Size: The size of the envelope shall be as ordered. A tolerance of -2
mm, +4 mm shall be allowed. Dimensions are inside measurements.
Pressroom conditions: The bulk of these envelopes will be used in air-
conditioned pressrooms maintained at 24 2 deg.C and 45
8 pct relative humidity or offices with atmospheric
conditions of 21 5.5 deg.C and 50 20 pct
relative humidity.