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?

印刷進程中常常運用各種溶劑稀釋油墨，以行進油墨印刷適應性，行進油墨轉移強度，使印刷產品更加五顏六色，飽滿，形象生動。油墨轉移到各種薄膜上，油墨溶劑會逐漸蒸發;假定油墨表面會先溶解，內部溶劑會阻礙有用蒸發，會宣告溶劑完全的現象，也就是說，咱們屬于溶劑殘留超標，殘留溶劑氣味，影響包裝。

 

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.

油墨單調時刻與開機速度的長短有直接關系。食品包裝袋正確開機速度假定跨越工藝要求會導致印刷油墨在薄膜表面固化，并且不能得到完全內部溶劑蒸發，特別是假定是一組顏色的顏色，印刷進程和依據基材挑選不同品種的印刷油墨，印刷挑選運用不同品種的油墨一同運用不同的溶劑。由于印刷圖畫的多樣性，圖畫能夠由單色塊或多色塊組成。

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.

假定食品包裝袋的速度不合適出產前期的空氣量和溫度，則會發生各種殘留溶劑。并且在單調進程中負荷很重，由于膠水量的差異，從3克到6克每平方米有不同的要求，膠粘劑的粘度出產也有各種不同的要求，假定工藝參數設定的話不合理，很簡單呈現超標的溶劑殘留物。

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.