Envelopes
Envelope construction
Envelope construction is critical. Envelope fold lines can vary considerably, not only between manufacturers, but also within a box from the same manufacturer. Successful printing on envelopes depends upon the quality of the envelopes. When selecting envelopes, consider the following components:
●Weight: The weight of the envelope paper should not exceed 28 lb (105 g/m2), or jamming might result.
●Construction: Prior to printing, envelopes should lie flat with less than 6 mm (0.25 in.) curl and should not contain air. Envelopes that trap air may cause problems.
●Condition: Make sure that the envelopes are not wrinkled, nicked, or otherwise damaged.
●Sizes: From 90 x 160 mm (3.5 x 6.3 in.) to 178 x 254 mm (7 x 10 in.).
Envelopes with double-side seams
An envelope with
1
2
1acceptable envelope construction
2unacceptable envelope construction
Envelopes with adhesive strips or flaps
Envelopes with a
Envelope storage
Proper storage of envelopes contributes to good print quality. You should store envelopes flat. If air is trapped in an envelope, creating an air bubble, the envelope might wrinkle during printing.
118 Appendix B | ENWW |