| 摘要 |
The plastic film is coated with a paper laminate and provided with an optical lens screen. Initially, the plastic film is pre-heated and joined to the unheated paper layer by pressure, amt. at the same time the lens screen is applied to its opposite surface. The completed film is then cooled to room temp. The product gives a 3-D effect useful for post-cards, publicity material and play things etc. |
