| 摘要 |
A dope producing apparatus is provided with a first feed line for sending polymer solution from a fourth tank to a solution casting apparatus. The first feed line is provided with a first orifice for adding dilute liquid to the polymer solution; a first inline mixer for inline-mixing the polymer solution and the dilute liquid to produce a mixture; a second orifice for adding matting liquid to the mixture; and a second inline mixer for mixing the mixture and the matting liquid to produce a first dope.
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