Envelopes

The envelope is the one part of a mailing the recipient touches first, and it does two jobs before the letter is ever read: it carries the contents and it earns the open. That makes it both a production component (the shell an inserter has to feed and seal) and a marketing surface in its own right. Plavidian prints both the outer envelope that fronts a letter package and the reply envelope that travels inside it, from a plain #10 with a printed indicia to a full-color, personalized outer with teaser copy across the face.

Window or closed-face is the first decision, and it is really a decision about how the piece gets addressed. A window envelope lets the letter's own printed address show through, so the name on the letter is the name USPS reads, with no separate addressing pass and no risk of the wrong letter behind the right window. A #10 is the standard, offered as a single-window, non-window, or double-window version for letters, notices, and statements; a #9 is its companion reply envelope, sized to drop back inside a #10; and 6x9, 9x12, and 10x13 step up for heavier or unfolded contents. Closed-face envelopes get addressed and matched by hand instead, which is the right call when the design wants an unbroken face.

Printing runs the way the envelope will be used. A 1/0 black front handles a clean corporate look and a printed indicia at the lowest cost; 4/0 full color carries an offer or a cause across the whole front; and 4/4 prints both sides when the back flap carries a message too. Envelopes convert on uncoated envelope stock built to take toner and ink without cracking at the folds and to stay readable under the address and barcode. Variable data personalizes the face (the recipient's name in the teaser, a version by segment, a sequence number for tracking) in the same pass that addresses it.

Most outer envelopes exist to be filled, so we build them to feed. Window placement is held to the position the inserted letter folds to, flap style and seal are chosen for the inserting line, and the barcode clear zone stays empty so nothing the press adds fights the barcode USPS sprays. When the envelope is part of a letter package, it moves straight from conversion into inserting: personalized letters go into window envelopes so the address prints on the letter itself, multipage personalized letters are matched by a computer-controlled inserter that checks the pages match, and personalized letters going into closed-face envelopes are matched by hand. The reply envelope collates into that same pass, so the ask and the way to respond travel together.

How an envelope mails is decided before it is designed, so we price it that way. First-Class buys speed, forwarding, and returns; Marketing Mail buys price at volume. We CASS-standardize the list (NCOA updating is an option), presort and optimize postage, address and insert, then enter the mailing Full-Service for automation pricing and end-to-end tracking, and we quote both classes from your real list before anything is committed.

• Sizes run #9, #10, #10 Window, #10 Non-Window, #10 Double Window, 6x9, 9x12, and 10x13, plus custom trims
• #9 is the reply envelope sized to drop back inside a #10; the double-window style suits statements that show a recipient and a remittance line
• Converts on uncoated envelope stock (Envelope and Envelope Stock) built to take ink and fold without cracking; no coating
• Print options are 1/0 black front only, 4/0 full color front only, or 4/4 full color on both sides
• #10 and 6x9 mail as letters at automation rates when machinable; 9x12 and 10x13 cross into flats pricing
• Window envelopes address the letter itself: no second addressing pass and no name-to-window mismatch
• Keep the lower-right barcode clear zone and the upper-right postage corner clean; both are checked in preflight
• Variable data personalizes the face and versions by segment in the same pass that addresses it