It is critical that you choose an envelope for inserting that is compatible with the inserting equipment that will be used. Each manufacturer of inserting machines provide carefully defined specifications for the style and type of envelope which will perform well on their equipment. We recommend contacting the inserting machine manufacturer prior to specifying your envelope to be sure you are selecting the correct style for accurate inserting performance.
Basic guidelines for best performance. Verify with inserting machine manufacturer before selecting your envelope:
Always specify “for mechanical insertion” when ordering envelopes.
Stock may range from 20 lb. to 28 lb., 24# is optimum.
Envelopes made from recycled stock should not have a shiny or slick surface.
Minimum flap size is 1 1/4” - Maximum flap size is 2 1/4”.
Whatever the size of the enclosure, add 1/2” to the length of the envelope and 1/4” to the height.
Split-seal gumming on diagonal seam envelopes prevents the flap from tacking down to the body of the envelope.
Window patches should be glued to within 1/16” from the top edge of the patch material and window cutout.
Samples are available and suggested for testing on your insertion equipment.
Open window envelopes will require an open window kit.
When utilizing a regular gummed postage stamp, specify “For Live-Stamp Gumming”.
National Envelope and your local paper supplier are available to answer any questions or concerns you may have regarding mechanical inserting.
Sources for More Information:
Because there are unusual exceptions in all classes of domestic and international mail, and because regulations change, contact the U.S. Postal Business Center in your city for the most current information.
For Small to Medium Business Mailers:
Postal Business Centers are located around the country: their primary focus is to improve service and to assist in converting the mail to be conducive to automation. Among the services offered:
* Adding ZIP+4 codes to address files including a one time free U.S.P.S. diskette coding service
* Diagnosing Business Reply and Courtesy Reply envelopes and cards for readability and machinability
* Postal products services and information Call your post office for more information.
Mailpiece design analysts (MDAs) are assigned to business mail entry units (BMEUs) throughout the country to help you design your reply mail. To make sure that your piece achieves the best quality, provide samples of your BRM or CRM pieces to an MDA early in the design process, allowing time for changes before printing.
Zip+4 address lists:
Printed ZIP+4 code state directories can be purchased at a nominal cost from local post offices.
Artwork:
For free FIM and bar code positives for Postage-paid reply, Business Reply Mail and for Courtesy Reply Mail contact your local Postal Business Center.
