The peculiar smell of food packaging bags will lead to poor food taste, even affect food quality and damage people's health. In particular, foods such as chocolate, milk powder, wafer biscuits and potato chips are particularly active to smell. What are the possible reasons for the smell of food packaging bags in Jinan?

印刷进程中常常运用各种溶剂稀释油墨，以行进油墨印刷适应性，行进油墨转移强度，使印刷产品更加五颜六色，饱满，形象生动。油墨转移到各种薄膜上，油墨溶剂会逐渐蒸发;假定油墨表面会先溶解，内部溶剂会阻碍有用蒸发，会宣告溶剂完全的现象，也就是说，咱们属于溶剂残留超标，残留溶剂气味，影响包装。

 

In the printing process, various solvents are often used to dilute the ink, so as to improve the printing adaptability and transfer intensity of the ink, so as to make the printing products more colorful, full and vivid. When the ink is transferred to various films, the ink solvent will evaporate gradually; It is assumed that the ink surface will dissolve first, and the internal solvent will hinder the useful evaporation, which will declare that the solvent is complete. In other words, we belong to the phenomenon that the solvent residue exceeds the standard, and the residual solvent smell affects the packaging.

油墨单调时刻与开机速度的长短有直接关系。食品包装袋正确开机速度假定跨越工艺要求会导致印刷油墨在薄膜表面固化，并且不能得到完全内部溶剂蒸发，特别是假定是一组颜色的颜色，印刷进程和依据基材挑选不同品种的印刷油墨，印刷挑选运用不同品种的油墨一同运用不同的溶剂。由于印刷图画的多样性，图画能够由单色块或多色块组成。

Ink monotonous time is directly related to the length of startup speed. It is assumed that the correct startup speed of food packaging bags will lead to the curing of printing ink on the film surface beyond the process requirements, and the complete internal solvent evaporation cannot be obtained. In particular, it is assumed that the color of a group of colors, the printing process and the selection of different varieties of printing inks according to the substrate, and the selection of printing brushes will use different kinds of inks together with different solvents. Due to the diversity of printed pictures, pictures can be composed of monochrome blocks or multi-color blocks.

假定食品包装袋的速度不合适出产前期的空气量和温度，则会发生各种残留溶剂。并且在单调进程中负荷很重，由于胶水量的差异，从3克到6克每有不同的要求，胶粘剂的粘度出产也有各种不同的要求，假定工艺参数设定的话不合理，很简单呈现超标的溶剂残留物。

If the speed of food packaging bag is not suitable for the air volume and temperature in the early stage of production, various residual solvents will occur. And the load is very heavy in the monotonous process. Due to the difference in the amount of glue, there are different requirements from 3 G to 6 g per square meter, and the viscosity production of adhesive also has different requirements. Assuming that the process parameter setting is unreasonable, it simply presents excessive solvent residues.