宁波牛皮纸箱可以用来存放物品或包装一些易损产品，但是一些穿透能力很强的粮食害虫，可以穿透包装纸板，不仅损害其中的食品，也损害了食品生产厂家和销售商的声誉，因此西安中天包装有限责任公司想出了两种防虫方法。
Ningbo Kraft cartons can be used to store goods or pack some vulnerable products, but some insect pests with strong penetration ability can penetrate the packaged cardboard, which not only damages the food, but also damages the reputation of food manufacturers and sellers. Therefore, Xi'an Zhongtian Packaging Co., Ltd. has come up with two ways to prevent insects.

1.物理方法，即用强度较高的薄膜包装单个食品，使虫子穿不透而防虫。但这种方法必须改变现有的包装生产线，另外也格外增加了薄膜的成本。

Physical method is to pack individual food with high strength film, so that insects can not penetrate and prevent insects. But this method must change the existing packaging production line, in addition to increasing the cost of film.

2.采用化学的方法，即用涂有化学药剂的纸板包装食品以防虫，其具体做法是在纸板的表面，涂上防虫漆。这种防虫漆不是杀虫剂，而是可以作为食品添加剂的天然精油，其作用不是杀虫，而是驱虫，从外部防止虫子的侵入。这样可以不改变现有的包装生产线，保持较低的成本。其加简单，可以用苯胺印刷机印到纸板表面上，适于小批量生产，废纸板可以回收再生。

The chemical method is to pack food with cardboard coated with chemicals to prevent insects. The specific method is to coat the surface of cardboard with anti-insect paint. This insect-proof paint is not an insecticide, but a natural essential oil that can be used as a food additive. Its function is not to kill insects, but to repel insects from the outside to prevent the invasion of insects. This will not change the existing packaging production line, maintain a lower cost. It is simple and can be printed on the surface of cardboard by aniline printer. It is suitable for small batch production. Waste cardboard can be recycled.