Envelope with adhesive bag is made of biodegradable materials made of environmentally friendly large envelope, stickers of the tongue, this waterproof plastic envelope light weight, only about one-tenth of the same type of paper envelope, and the cost Low, toughness, abrasion, anti-fouling, especially for magazine. Newspaper, distribution agencies and other units mail business and other purposes. In the global focus on green environmental protection today, the use of biodegradable plastic envelopes instead of bamboo pulp production of envelopes, both economical and affordable, but also save timber resources, promote environmental protection, but also the corresponding savings and postage.