无溶剂复合中的开环与闭环张力

Tension of Ring Opening and Closed-loop in Solvent-free Lamination

本文分析了无溶剂复合设备开环与闭环等两种张力控制的优缺点，总的来说，闭环张力控制系统优于开环张力控制系统。彩印厂加工的产品本身就呈多元化，经常会有薄PE或者其他尺寸稳定性要求高的产品，这时闭环张力控制系统设备是首选；如果没这方面的订单，选择更为简单的开环张力控制系统设备也未尝不可。

This text describes about the advantages and the disadvantages of tension control systems of ring opening and closed-loop in solvent-free laminated machinery. In a conclusion, closed-loop tension control system performs better than ring opening tension control system. As the processed products of flexible packaging manufactories are diversified, the packaging manufactories are always in requirement of products with thin PE materials or in high stability in sizes, at that occasion, the closed-loop tension control system is a better choice. While the packaging manufactories have no such high requirements in products, it is also available to choose the simple one, the ring opening tension control system.