| 摘要 |
<p>PURPOSE:To achieve freshness retention and quality improvement of packaged foods or the like, by a method wherein printing oily ink agent is mixed with ceramics composed of far infrared radiation matter and besides, specific gravity of the ink agent is made conformable with that of the ceramics to prepare printing ink, which is printed on thin matter to be printed and is laminated by resin materials. CONSTITUTION:Printing ink is prepared as follows. An oily ink agent is mixed with ceramics composed of far infrared radiation matter such as magnesium, calcium, iron, nickel, etc., by a ratio of 6-30% and besides, specific gravity of the ceramics is made conformable with that of the oily ink. Said printing ink is printed on a thin matter 1 to be printed. Then, it is laminated from upper side and lower side by resin materials such as polyester, nylon, polypropylene, etc. The oily ink agent is thereby transferred to the matter to be printed to perform printing. In the case where the sheet prepared by thus laminating and making sheet is used as wraps wrapping foods or the like, infrared electromagnetic wave emitted from far infrared radiation matter of transferred printing ink interferes in a molecule of organic matter, and freshness of the wrapped food can be maintained by resonance operation of said molecule.</p> |
