| 摘要 |
<p>A buffer layer, which can reduce a bump formed on the circumferential face of a core due to the thickness of a winding-start point of a film, can be adequately stuck to a core body in an easily releasable manner. Disclosed is a core (1) which comprises a core body (1A) comprising acryl-butadiene-styrene (ABS) and a buffer layer (1B) comprising a styrene-based elastomer, said buffer layer (1B) being seamlessly stuck to the surface of said core body (1A).</p> |
