发明名称 |
APPARATUS AND METHOD FOR PRODUCING COATED FILM |
摘要 |
<p>The invention relates to apparatus and a method for producing a coated film in which a cooled polymeric tubular extrudate is coated, reheated and inflated to yield an oriented, coated tubular film. The apparatus includes a coating head comprising a rotatable assembly including a support member [13] providing an orifice [14] through which the tubular extrudate may be fed, a plurality of spreading members [19] spaced-apart around the orifice, mounting means [15] for each of the spreading members operatively associated with the support member and displaceable relative thereto, and means [21] for biasing each of the spreading members into engagement with the tubular extrudate. Liquid coating medium is suitably deposited on the extrudate from a spray assembly, and the coating asembly is rotated around the extrudate thereby spreading and polishing the deposited medium to yield a uniformly coated film. The system is particularly suitable for the production of polymeric packaging films having an antistatic coating on the surface thereof.</p> |
申请公布号 |
DE2860725(D1) |
申请公布日期 |
1981.08.27 |
申请号 |
DE19782860725 |
申请日期 |
1978.10.30 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
HENDY, BRIAN NORMAN;FORD, JOHN MARTIN |
分类号 |
B29C55/00;B05C11/02;B29B7/00;B29C47/00;B29C47/92;B29C49/00;B29C55/28;(IPC1-7):05D1/40;29D7/20 |
主分类号 |
B29C55/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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