全息防伪烟包的镀铝工艺研究

Aluminium Coating Process for Holographic Anti-counterfeiting Cigarette Packet

目的为解决苏州某公司在红塔山（经典100）烟包打样过程中样品与标准样张的色差问题,调整烟包生产中的镀铝工艺参数,确定最佳生产方案。方法通过采集不同机台的打样数据找出铝层厚度与对应方阻值的关系,分析实验数据、绘制曲线并得到Rs-d的拟合方程。结果方阻值随铝层厚度增加而减小,且在不同的铝层厚度区间内方阻减小的速率不同,分界点为（2.61,2.54）。结论将镀铝工艺的方阻值控制在2.21~2.72Ω范围内,能有效解决打样的色差问题。

Objective To solve the color difference problem between the cigarette packet samples and the proofs of Hongtashan （ Classic 100 ） of a company in Suzhou, the process parameters in the aluminum coating process were adjusted, and the optimal production program was determined. Methods Data was collected from different proofing machines to find out the relationship between the aluminum layer thickness with the corresponding square resistance, and a fitting equation of R.-d was obtained by analyzing the experimental data and drawing curves. Results The square resistance decreased with the increasing aluminum layer thickness, and the decreasing speed was different within different intervals of aluminum layer thickness, with a demarcation point of （2.61, 2.54）. Conclusion Controlling the square resistance of the aluminum layer within 2.21~2.72 12 could effectively solve the color difference in the proofing process.