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    • 8. 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。
    • 9. 发明授权
    • Photographic roll film having sealing tape
    • 具有密封带的摄影辊膜
    • US06540077B2
    • 2003-04-01
    • US09769738
    • 2001-01-26
    • Mototada YasuiNobuo SugiyamaHiroyuki Kurabayashi
    • Mototada YasuiNobuo SugiyamaHiroyuki Kurabayashi
    • B65D8566
    • G03C3/02
    • The invention relates to a photographic roll film such as Brownie film, particularly to a sealing tape, used for the photographic roll film, which can seal a roll of film easily and reliably without the need for licking adhesive on a sealing tape as in a conventional one. The sealing tape includes a bonding portion and a release portion which are made of a single tape base. The bonding portion has a bond layer coated on the tape base for securing the sealing tape to a surface of light-shielding paper, the release portion made of a folded-over portion formed by folding over the tape base includes a tacky layer and a release layer inside the folded-over portion which are coated on the tape base separately and directly face each other and an end of the tape base is secured to the end portion of the bond layer.
    • 本发明涉及一种照相辊胶片,特别是用于照相辊胶片的胶带,特别是用于照相胶卷的密封带,其可以容易且可靠地密封胶卷,而无需像密封胶带一样在密封胶带上舔粘合剂。 一。 密封带包括由单个带基部制成的接合部分和释放部分。 接合部具有涂覆在带基部上的接合层,用于将密封带固定到遮光纸的表面,由通过折叠在基座上形成的折叠部分制成的释放部分包括粘性层和释放 层叠在折叠部分上,分别涂覆在带基上并直接相对,并且带基的端部固定到接合层的端部。