Hot embossing of diffractive optically variable images in biaxially-oriented polypropylene

被引：10

作者：

Leech, Patrick W. ^{[1
]}

Lee, Robert A. ^{[1
]}

机构：

[1] CSIRO, CMIT, Clayton, Vic 3169, Australia

来源：

MICROELECTRONIC ENGINEERING | 2007年 / 84卷 / 01期

关键词：

hot embossing; grating array; BOPP; optically variable;

D O I：

10.1016/j.mee.2006.07.005

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The hot embossing of grating-based optically variable devices has been demonstrated in biaxially-oriented polypropylene (BOPP). Embossing of the grating structures was examined over a range of temperatures (80-155 degrees C) at 135 kN force. However, only at temperatures above the glass transition temperature, T-g, was high quality replication achieved over a full embossing area of 80 x 80 mm. The embossing of several different types of optically variable device has been examined including portrait, non-portrait and 3-dimensional images. The images embossed into BOPP have displayed an optically variable effect when viewed in transmitted light. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：25 / 30

页数：6

共 10 条

[1] Embossing of nanoscale features and environments [J].