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    • 94. 发明授权
    • Transfer belt in a press nip closed draw transfer
    • 转印带在压区中封闭抽出
    • US5298124A
    • 1994-03-29
    • US897074
    • 1992-06-11
    • Nils O. EklundLars E. C. FagerholmLynne R. Muscato
    • Nils O. EklundLars E. C. FagerholmLynne R. Muscato
    • D21F3/00D21F3/02D21F3/04D21F3/08D21F7/08
    • D21F3/0227D21F3/045D21F7/086Y10S162/901Y10T442/2066Y10T442/2074Y10T442/3764
    • A transfer belt for eliminating an open draw between a press in a papermachine and a transfer point has a supporting base with a particle-filled polymer coating. The coating, which constitutes the paper side of the transfer belt, carries the paper sheet from a press nip in a closed draw to a transfer point without sheet flutter or drop-off. At the transfer point, the paper sheet is readily released to another sheet-conveying papermachine-clothing product. The transfer belt may carry the sheet through more than one press nip. The transfer belt surface has a pressure-responsive recoverable degree of roughness, which is made relatively smooth by compression in the press nip, allowing the thin, almost continuous water film to form between the transfer belt and the paper sheet. When leaving the press nip, the paper sheet is held to the transfer belt by the thin, almost continuous water film. Following exit from the press nip, the transfer belt surface recovers its uncompressed roughness, breaking up the water film, so that, by the time the paper sheet reaches the transfer point, it is readily released by the transfer belt to the next sheet-conveying papermachine-clothing product, which might be a felt, a belt, or a fabric.
    • 用于消除造纸机中的压机和转印点之间的开放拉伸的转印带具有带有颗粒填充的聚合物涂层的支撑基底。 构成转印带的纸面的涂层将纸张从封闭的压榨辊中将纸张运送到转印点,而不会发生纸张振动或掉落。 在转印点,纸张容易释放到另一张纸张输送造纸机服装产品上。 转印带可以通过多于一个的压榨辊隙携带纸张。 转印带表面具有压力可恢复的粗糙度,其通过在压榨压区中的压缩而相对平滑,从而在转印带和纸张之间形成薄的几乎连续的水膜。 当离开压区时,纸张被薄的几乎连续的水膜保持在转印带上。 在压榨辊出口之后,转印带表面恢复其未压缩的粗糙度,破坏水膜,使得当纸张到达转印点时,转印带容易地被转印带释放到下一个纸张输送 造纸机服装产品,可能是毛毡,皮带或织物。