The design requirements specified in the standard:
1. There are many elements that must be printed in spot color gold red;
2. The upper left corner of the front of the envelope should be 90mm from the left, and within the range of 26mm from the top is the machine scanning area. Except for the red frame, no patterns or text should be printed;
3. The word "zip code" should be printed on the lower right corner of the front of the envelope, the font should be in Song type, and the font size should be small number four.
4. The box on the front right corner of the envelope should be printed with a postage stamp. The font of the "postage stamp" should be in Song type with a small size of 4.
5. The lower right corner of the back of the envelope should be printed with the printing unit, quantity, ex-factory date, supervisory unit and supervisory certificate number, etc., the font should be in Song type, and the font size should be under 5.
6. Where the name and address of the unit and the enterprise logo need to be printed on the envelope, its position must be on the right side at least 20mm from the bottom;
7. The area from 55mm to 160mm from the right and less than 20mm from the bottom is the barcode printing area, and this area should be left blank;
8. Advertisements must not be printed anywhere on the envelope;
9. Writing lines can be printed on the front of domestic envelopes 3 #, 5 #, 6 #;
10. Artistic patterns can be printed on the envelope, and its position is in the area below 26mm from the front of the envelope, and the occupied area should not exceed 18% of the front area;
Wall up
Only envelopes 7 # and 9 # can be walled.
Take domestic envelopes 3 #, 5 #, 6 # as examples.
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