全息膜复合PET柱镜光栅工艺技术研究及性能测试

文章采用正交试验方法,对全息膜复合PET柱镜光栅片材生产工艺技术条件进行了研究,考察了全息膜厚度、全息膜与前辊接触面、放卷张力三个因素对光栅表面性能的影响,同时对其物理性能进行了对比测试。通过试验得出,在全息复合PET柱镜光栅片材生产过程中,最佳生产工艺为全息膜厚度20 μm,接触面50%,放卷张力15 N。该工艺试验下无复合褶皱、有轻微翘曲度1 mm,无拉升变形。物理性能测试结果除纵向拉升强度略低外,其他性能都是超过或相近于纯PET原料柱镜光栅片材的,表明其应用到产品上是具备可行性的。The production process conditions of holographic film composite PET cylindrical mirror grating sheet were studied using orthogonal experimental methods. The effects of holographic film thickness, holographic film front roller contact surface, and unwinding tension on the surface properties of the grating were investigated, and their physical properties were compared and tested. Through experiments, it was found that the optimal production process for holographic composite PET cylindrical mirror grating sheets is a holographic film thickness of 20 μm, a contact surface of 50%, and an unwinding tension of 15 N. Under this process test, there were no composite wrinkles, slight warping of 1 mm, and no tensile deformation. The physical performance test results show that, except for slightly lower longitudinal tensile strength, all other properties exceed or are similar to pure PET raw material column mirror grating sheets, indicating its feasibility for application in products.

层间滑动褶皱新见

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文艺复兴褶皱的构成特点与现代设计应用

文艺复兴时期的服饰褶皱形式多样且工艺复杂,是现代服装设计中常用的复古元素。文章以提高褶皱在现代服装局部造型表现上的可操作性为目的,首先,将文艺复兴褶皱分为自然褶皱、人工褶皱和复合褶皱3个类型;其次,结合不同类型褶皱的造型特点,从结构、加工方式、材质的利用等阐述现代设计中文艺复兴褶皱形式的传承与变异;最后,归纳并整理文艺复兴褶皱作为复古元素在现代服装局部造型设计中的应用方式。与文艺复兴褶皱比较,现代褶皱造型简化,功能性减弱,装饰性增强,突出了服装局部造型设计表现力。