食品罐头是我国主要出口商品之一。上海食品进口公司出口的食品罐头远销中东、美国、西欧等国。过去出口的罐头都是采用瓦楞纸箱,内衬柏油黄纸板作为中包装,然后进行托盘组装。由于纸箱防潮性能较差,并且箱内罐头之间存在着较大的空隙,经过陆运中的颠簸和海运中潮气等侵蚀,到达国外后,大量罐头发生严重锈听、瘪听现象,给国家造成了很大的损失。 Canned food is one of China’s major export commodities. Shanghai food import company exports canned food exported to the Middle East, the United States, Western Europe and other countries. In the past canned exports are used corrugated boxes, lined with tar yellow cardboard as a package, and then tray assembly. Due to the poor moisture resistance of the carton and large gaps between the cans in the carton, after being buffeted by the bump in the ground and the moisture in the sea, after reaching abroad, a large number of cans suffer from severe rusting and obstructing phenomena, causing the country Great loss.