| 摘要 |
<p>THE PRESENT INVENTION CONCERNS AN AT LEAST PARTIALLY TRANSPARENT CIGARETTE FILTER TIPPING FILM COMPRISING A BIODEGRADABLE SUBSTRATE, AND SOFTENER IN AN AMOUNT OF LESS THAN 25% BY WEIGHT OF THE BIODEGRADABLE SUBSTRATE, AND A CIGARETTE FILTER COMPRISING A FILTRATION MATERIAL ENCASED IN A CYLINDER OF THE SAID TIPPING FILM.</p> |
