一、屏障特性
1、 Barrier characteristics
纸和纸板是多孔纤维材料,对湿气、气体、光、油脂等有一定的渗透性。并且它们的阻隔性能受温度和湿度的影响很大,因此它们能通过适当的表面处理来满足纸箱阻隔性能的要求。
Paper and paperboard are porous fiber materials, which have certain permeability to moisture, gas, light, grease, etc. And their barrier performance is greatly affected by temperature and humidity, so they can meet the requirements of carton barrier performance through appropriate surface treatment.
二、加工性能
2、 Processability
有很好的加工性能,可以折叠,可以多种方式封口。易于加工成各种性能的包装容器,易于实现机械化加工操作。此外,纸箱适当的表面处理可以为纸张和纸板提供必要的防潮性、防虫性、阻隔性、热封性、强度和物理性能,从而扩大其应用范围。
It can be folded and sealed in many ways. It is easy to process into packaging containers with various properties, and easy to realize mechanized processing operation. In addition, proper surface treatment of cartons can provide paper and paperboard with necessary moisture resistance, insect resistance, barrier, heat sealing, strength and physical properties, thus expanding its application scope.
三、机械性能
3、 Mechanical properties
有一定的强度、刚度和机械适应性,其强度主要取决于纸张的材质、质量、厚度、加工工艺、表面状况和一定的温湿度条件;此外,纸张还具有一定的折叠、弹性和撕裂性能,适用于制作成型包装容器或包装。
It has certain strength, rigidity and mechanical adaptability, and its strength mainly depends on the material, quality, thickness, processing technology, surface condition and certain temperature and humidity conditions of the paper; in addition, the paper also has certain folding, elastic and tearing properties, which is suitable for making shaped packaging containers or packages.
四、健康性能
4、 Health performance
在纸张加工过程中,尤其是化学制浆过程中,通常会残留一定的化学物质,因此需要根据纸箱包装的内容正确合理地选择各种纸张和纸板。
In the process of paper processing, especially in the process of chemical pulping, there are usually some chemical substances left, so it is necessary to choose all kinds of paper and paperboard correctly and reasonably according to the content of carton packaging.
五、打印性能
5、 Printing performance
具有较强的吸墨和装订能力,印刷性能好,因此在包装中常被用作印刷面。纸和纸板的印刷性能主要取决于表面光洁度、橡胶涂层、弹性和附着力。
It has strong ink absorption and binding ability, good printing performance, so it is often used as printing surface in packaging. The printing performance of paper and paperboard mainly depends on the surface finish, rubber coating, elasticity and adhesion.