Converting/Printing Guidelines

If you have any questions, please call before any work is started.

Die Cutting
There are various ways to die cut a sheet. At LPI, we offer 3 types. The best fit for your order depends on envelope size, graphics and budget.

Hi Die
By using a “metal cookie cutter” looking die, we cut several hundred sheets simultaneously with the top sheet being a die dot sheet. The die dot sheet is used to verify position of the die. Please note that die dot sheets are not converted.

Adjustable
Like the high die, it cuts several hundred sheets simultaneously. This die is used when die cutting custom sized envelopes. This provides the ability to make your open-end or booklet envelope almost any size with any size flap. All corners of the envelope will be square.

Steel Rule
This is the most precise of the three. It cuts each sheet individually. A steel rule die is made from your supplied die line. This manner of die cutting reduces the bleed that wraps around envelope. Steel rule die cutting is done to minimize bounce.

Hi Die

LPI provided electronic templates must be used to work with our tooling. Upon receipt of purchase order please call for your template.
Envelopes must be printed a minimum of 1/8” from the edge of the sheet and there must be a 1/8” clearance between envelopes. Please follow die guide.
Bleeds must extend 1/8”. Some designs will require a wrap to the other side of the envelope.
One Die Dot Sheet is required for every 250 sheets.
Mark gripper and guide on order.
Pack die dot sheets on top of box or skid and clearly mark location.
All orders must be delivered with minimum of 1,000 envelopes over per lot plus 12%. Small quantity, matte stocks, translucent stocks, and window envelope orders require more overs. Please call to discuss.
A Purchase Order or work sheet with specifications must be included with order as well as a sample (folding dummy).
Metallic inks, ink, varnish, aqueous coating or UV must be knocked out of the no print area.
When converting booklet envelopes, the top flap must fold with the grain. When converting open end envelopes, the top flap must fold cross grain.
Due to the wide variety of different papers on the market today, many sheets will crack, wrinkle or otherwise convert poorly due to the nature of the sheet itself. We are not responsible for printed stock if ink is not able to withstand roll or blade pressures that leads to smears/offsetting when converting or if glue does not adhere to printed areas that were not knocked out.
Traditional hi-die cutting results in variations of print positions on envelopes. This is especially noticeable when there is a bleed to the edge, thus the need for the 1/8” bleed. For a more precise cut, please ask about our steel rule cutting option.

Adjustable Die

LPI provided electronic templates must be used to work with our tooling. Upon receipt of purchase order please call for your template.
Envelope printing can be to the edge of the sheet of paper, can be butted together on order to maximize the use of the sheet. By printing to the edge of the sheet, this will reduce the number of straight knife cuts. Additional charge and time will be incurred.
Bleeds must extend 1/8”. Some designs will require a wrap to the other side of the envelope.
One Die Dot Sheet is required for every 250 sheets.
Mark gripper and guide on order.
Pack die dot sheets on top of box or skid and clearly mark location.
All orders must be delivered with minimum of 1,000 envelopes over plus 12%. Small quantity, matte stocks, translucent stocks, and window envelope orders require more overs. Please call to discuss.
A Purchase Order or work sheet with specifications must be included with order as well as a sample (folding dummy).
Metallic inks, inks, varnish, aqueous coating or UV must be knocked out of the glue area.
When converting booklet envelopes, the top flap must fold with the grain. When converting open end envelopes, the top flap must fold cross grain.
Due to the wide variety of different papers on the market today, many sheets will crack, wrinkle or otherwise convert poorly due to the nature of the sheet itself. We are not responsible for printed stock if ink is not able to withstand roll or blade pressures that leads to smears/offsetting when converting or if glue does not adhere to printed areas that were not knocked out.
Traditional adjustable die cutting results in variations of print positions on envelopes. This is especially noticeable when there is a bleed to the edge, thus the need for the 1/8” bleed. For a more precise cut, please ask about our steel rule cutting option.

Steel Rule Die

LPI provided electronic templates must be used to work with our tooling. Upon receipt of purchase order please call for your template.
Bleeds need to extend 1/32”.
Mark gripper and guide on order.
All orders must be delivered with minimum of 1,000 envelopes over plus 12%. Small quantity, matte stocks, translucent stocks, and window envelope orders require more overs. Please call to discuss.
A Purchase Order or work sheet with specifications must be included with order as well as a sample (folding dummy).
Metallic inks, ink, varnish, aqueous coating or UV must be knocked out of the glue area.
When converting booklet envelopes, the top flap must fold with the grain. When converting open end envelopes, the top flap must fold cross grain.
Due to the wide variety of different papers on the market today, many sheets will crack, wrinkle or otherwise convert poorly due to the nature of the sheet itself. We are not responsible for printed stock if ink is not able to withstand roll or blade pressures that leads to smears/offsetting when converting or if glue does not adhere to printed areas that were not knocked out.

Our Promise

Our promise to you is to provide the best possible quality envelopes. However, like all envelope manufacturers, from time to time undetected production problems will occur. If you encounter such a problem, call us immediately. Based upon our evaluation, we will correct the problem by either fixing existing envelopes or replacing them. We reserve the right to reprint the envelopes from your supplied artwork.
LPI Envelope will not be held liable for any incremental costs occurred as a result of defective envelopes or missed delivery dates. Our liability is limited only to the extent of replacing or fixing the product and not any subsequent damages.