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常见问题

食品包装袋时间久了有异味什么原因呢?

来源:http://www.jingmeisuliao.com/ 日期:2022-10-19

食品包装袋生产厂家的食品包装袋的异味会导致食品风味的变化,甚至影响食品质量,损害市民的健康。尤其是巧克力、奶粉、潍华饼干、薯片等对气味要求特别的食品。食品包装袋有异味的原因是什么?
The peculiar smell of food packaging bags of food packaging bag manufacturers will lead to changes in food flavor, even affect food quality, and damage the health of citizens. Especially chocolate, milk powder, Weihua biscuits, potato chips and other foods with special smell requirements. What is the reason for the peculiar smell in the food packaging bag?
1. 在印刷过程中,经常使用各种溶剂对油墨进行稀释,从而提高油墨的印刷适应性,提高油墨的加工强度,使印刷产品更加丰富、饱满、生动。油墨转移到各种薄膜上后,油墨中的溶剂会逐渐蒸发;如果油墨表面的初级固化会阻碍内部溶剂的有用蒸发,就说明溶剂会完全释放出来,也就是我们的溶剂残渣用过了,显示出残留的溶剂气味,影响包装材料。油墨干燥时间的长短与启动速度有直接关系。
1. In the printing process, various solvents are often used to dilute the ink, so as to improve the printing adaptability of the ink, improve the processing strength of the ink, and make the printing products more rich, full and vivid. After the ink is transferred to various films, the solvent in the ink will gradually evaporate; If the primary curing of the ink surface will hinder the useful evaporation of the internal solvent, it means that the solvent will be completely released, that is, our solvent residue has been used, showing the residual solvent smell, which affects the packaging materials. The length of ink drying time is directly related to the starting speed.
2. 如果食品包装袋的启动速度超过正确的工艺要求,油墨就会在薄膜表面凝固,内部溶剂也不会完全蒸发。特别是如果后一组颜色是较大的色块,印刷工艺还应根据印刷承印物选择不同种类的油墨,同时使用不同种类的油墨和不同的溶剂。由于印刷图片的多样性,图片可以由单色块或多色块组成。
2. If the starting speed of the food packaging bag exceeds the correct process requirements, the ink will solidify on the film surface and the internal solvent will not completely evaporate. Especially if the latter group of colors is a large color block, the printing process should also select different types of inks according to the printing substrate, and use different types of inks and different solvents at the same time. Due to the diversity of printed pictures, pictures can be composed of monochrome blocks or multi-color blocks.
3.食品包装袋的速度和早期风量。如果温度不合适,会有各种溶剂残留。而且,在干燥过程中,由于胶粘剂的用量不同,每平方米3 ~ 6克的要求也不同,生产中胶粘剂的粘度也不同。如果工艺参数设置不合理,容易出现溶剂残留过大的问题。
3. Speed and early air volume of food packaging bags. If the temperature is not appropriate, there will be various solvent residues. Moreover, in the drying process, due to the different amount of adhesive, the requirements of 3~6 grams per square meter are also different, and the viscosity of adhesive in production is also different. If the process parameters are set unreasonably, the problem of excessive solvent residue is likely to occur.
以上就是为大家介绍的有关济南订做食品包装袋的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以专业的态度,为您提供服务http://www.jingmeisuliao.com
The above is a detailed introduction to the customized food packaging bags in Jinan. I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with professional services http://www.jingmeisuliao.com