Vegetables are perishable agricultural products. In the storage, transportation and marketing process,influenced by the surrounding environment and mechanical damage, the vegetables are easy to aging and decay,lower quality, which causes the difficulty of storage and transportation. Suitable packaging of vegetables can not only maintain the quality of vegetables, but also provide convenience in the process of storage and circulation. It is very important to study the preservation and preservation of fresh vegetables.

KSL crosslinked shrink film have the funtion of oxygen exchange. Vegetables are packaged in the sealed bags. It is necessary to create a microenvironment of low oxygen and certain carbon dioxide. At this time, a small amount of oxygen exchange between the inside and outside of the package is needed, which not only inhibits the respiration of vegetables and the growth of some microorganisms, but also provides a certain amount of oxygen to slow down the loss of vegetables in storage. It is easy to use, low in cost and good in keeping fresh.

Keywords: vegetable; fresh-keeping; packaging; storage; technology；crosslinked shrink film