| 摘要 |
1519666 Dip-coating apparatus CANON KK 22 April 1976 [25 April 1975] 16411/76 Heading B2L Apparatus for coating a body 5 comprises a hollow external member 1, an internal member 2 of similar external cross-section to body 5 and fitting loosely within member 1 to provide a gap therebetween, means for relatively moving bodies 2 and 5 axially with respect to member 1 and means 4 for preventing coating material 3 from leaking out of said gap. As shown, both members 2 and 5 may be cylinders; they are lowered until member 5 is entirely immersed in coating medium 3, and then slowly raised together, leaving a coating on member 5. Bodies 2 and 5 may be connected together using magnetic or suction means, and a gasket may be interposed therebetween to prevent leakage of medium 3; the supply of this medium may be continuously replenished by a feed and overflow mechanism (Fig. 3, not shown) and a vapour hord may be provided for retaining vapour of the medium around body 5 after its withdrawal therefrom. Means may also be provided for washing body 2 after its withdrawal below sealing means 4 (Fig. 7, not shown). The apparatus may be used for a photosensitive or insulating layer to a drum for electrophotography, e.g. Cds/ vinyl chloride - vinyl acetate layer or a urethane resin layer.
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