کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
540833 | 871349 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hot embossing of diffractive optically variable images in biaxially-oriented polypropylene
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
سخت افزارها و معماری
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چکیده انگلیسی
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 °C) at 135 kN force. However, only at temperatures above the glass transition temperature, Tg, was high quality replication achieved over a full embossing area of 80 × 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronic Engineering - Volume 84, Issue 1, January 2007, Pages 25–30
Journal: Microelectronic Engineering - Volume 84, Issue 1, January 2007, Pages 25–30
نویسندگان
Patrick W. Leech, Robert A. Lee,