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    • 2. 发明授权
    • Photographic 120-size film roll
    • 摄影120幅胶卷
    • US06196484B1
    • 2001-03-06
    • US09422345
    • 1999-10-21
    • Shunichi HosakaMasayoshi NagataYukiyoshi Ishii
    • Shunichi HosakaMasayoshi NagataYukiyoshi Ishii
    • B65H1828
    • G03B17/305
    • An improvement of a photographic film roll composed of a spool which has a spool core having a slit therein and a flange at both ends of the spool core and a photographic 120-size film which is placed and fixed on a continuous light-shielding backing paper in which one end of the backing paper is inserted into the slit of the spool and other portion of the backing paper is wound on the spool to form multiple convolutions, resides in that the backing paper has at the center in its longitudinal direction a width less than the distance between the two flanges measured at the position of ½ of height of the flanges and has two wide areas of at least 10 cm long one of which is within 50 cm area measured from its one end and another of which is within 50 cm area measured from its another end, the width of each wide area being larger than the distance between the two flanges measured at the tops of the flanges.
    • 改进由卷轴构成的照相胶片卷,该卷轴具有其中具有狭缝的卷轴芯和卷轴芯的两端的凸缘和照相120尺寸的胶片,其被放置和固定在连续的遮光背衬纸上 其中背纸的一端插入卷轴的狭缝中,并且背纸的其他部分缠绕在卷轴上以形成多个卷绕,其特征在于,背纸在其纵向方向上的中心具有较小的宽度 比在法兰高度的1/2的位置测量的两个凸缘之间的距离,并且具有至少10cm长的两个宽的区域,其中一个在其一端测量的50cm范围内,另一个在50cm以内 从其另一端测量的面积,每个广域的宽度大于在凸缘的顶部处测量的两个凸缘之间的距离。
    • 7. 发明授权
    • Instant film unit
    • 即时影片单位
    • US4668602A
    • 1987-05-26
    • US766135
    • 1985-08-15
    • Shunichi HosakaHiroyuki KurabayashiJun Inose
    • Shunichi HosakaHiroyuki KurabayashiJun Inose
    • G03C8/52G03C5/54G03C3/00
    • G03C8/52
    • A peel-apart type instant film unit comprising an image receiving sheet separably adhered in a heat sealing manner to a mask member which is peeled apart from the former after the development thereof. There is provided therebetween a weak sealing layer comprising an adhesive layer of a thermoplastic polymer having hydrophilic groups and a separating layer which is alkali resistant and has a good separation property relative to the adhesive layer. The weak sealing layer can provide an easy separation between the separating and adhesive layers so as perfectly to transfer the adhesive layer to the image receiving sheet to provide a fine appearance and a writeable image frame on the image receiving sheet. The mask member is made of any polyethylene compounded paper sheets and is provided with a processing liquid-resisting layer inside the weak sealing layer for the purpose of preventing the permeation of processing liquid thereto.
    • 一种剥离型即时胶片单元,其包括以热封方式可分离地粘附到在其显影之后从前者剥离的掩模构件的图像接收片。 在其间设置有弱密封层,该密封层包括具有亲水基团的热塑性聚合物的粘合剂层和耐碱性并且相对于粘合剂层具有良好分离性能的分离层。 弱密封层可以在分离层和粘合剂层之间提供容易的分离,从而完美地将粘合剂层转移到图像接收片材,以在图像接收片材上提供精细的外观和可写入的图像帧。 掩模构件由任何聚乙烯复合纸制成,并且在弱密封层内设置有防止加工液渗透的处理液层。