公开(公告)号：US20030124436A1

公开(公告)日：2003-07-03

申请号：US10265605

申请日：2002-10-08

申请人： Dai Nippon Printing Co., Ltd.

发明人： Satoshi Shioda ,  Mikiko Hojo ,  Hiroyuki Otaki ,  Kenji Ueda ,  Tetsuya Toshine

IPC分类号： G03H001/04

CPC分类号： G03H1/0252 ,  B42D25/328 ,  G03H1/0011 ,  G03H1/0248 ,  G03H2240/50 ,  G03H2250/10 ,  G03H2250/12 ,  G03H2260/12

摘要： Disclosed is a hologram transfer film which can realize easy and good transfer of a hologram and, at the same time, can realize stable transfer of the hologram in a transfer process. The hologram transfer film comprises: a substrate film; and a transfer layer provided on the substrate film, the transfer layer comprising a hologram-forming layer and a heat-sensitive adhesive layer provided in that order on the substrate film, the hologram-forming layer having a breaking strain of 0.5 to 15% at 25null C. and a breaking strain of 0.5 to 30% at 120null C.

公开(公告)号：US20030068491A1

公开(公告)日：2003-04-10

申请号：US10298903

申请日：2002-11-19

申请人： Dai Nippon Printing Co., Ltd.

发明人： Hiroyuki Otaki ,  Kenji Ueda ,  Kazumasa Shinga ,  Masahiro Kawasaki

IPC分类号： B32B007/12 ,  B32B015/04

CPC分类号： G09F3/10 ,  C08G18/625 ,  C08G2170/40 ,  C08L63/00 ,  C08L75/00 ,  C08L2666/14 ,  C09J133/062 ,  C09J2201/606 ,  G03H1/0248 ,  G03H2240/50 ,  G03H2250/10 ,  G09F3/02 ,  Y10T428/14 ,  Y10T428/28 ,  Y10T428/2848 ,  Y10T428/2891

摘要： A pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate is provided which, when kept in the pressed state, for example, during storage, is less likely to cause spotty hologram defects in the volume hologram layer. The pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate is a pressure-sensitive adhesive for a pressure-sensitive adhesive layer in a volume hologram laminate comprising a substrate 2 and, stacked on the substrate 2 in the following order, a first pressure-sensitive adhesive layer 3, a volume hologram layer 5, a second pressure-sensitive adhesive layer 4, and a surface protective film 6, the second pressure-sensitive adhesive layer having been formed from an acrylic pressure-sensitive adhesive comprising an acrylic copolymer resin, composed mainly of an alkyl acrylate, and a crosslinking agent, the second pressure-sensitive adhesive layer having a dynamic storage modulus of not less than 2.5null105 Pa as measured at a measuring frequency of 6.28 rad/sec and a temperature of 50null C. and a loss tangent (tan null) defined as dynamic loss modulus/dynamic storage modulus at 120null C. of not more than 0.15.

摘要翻译： 提供了一种体积全息图层叠体中的压敏粘合剂层用粘合剂，其在保持处于压制状态的情况下，例如在保存时不容易引起体积全息图层中的斑点全息图缺陷。 用于体积全息图层压体中的压敏粘合剂层的压敏粘合剂是包含基板2的体积全息图层叠体中的压敏粘合剂层用压敏粘合剂，并且按照以下顺序层叠在基板2上 ，第一压敏粘合剂层3，体积全息图层5，第二粘合剂层4和表面保护膜6，第二压敏粘合剂层由丙烯酸类压敏粘合剂形成，包括 主要由丙烯酸烷基酯组成的丙烯酸共聚物树脂和交联剂，所述第二压敏粘合剂层的动态储能模量不小于2.5×10 5 Pa，测量频率为6.28rad / sec，温度 （tanδ）定义为120℃下的动态损耗模量/动态储能模量不大于0.15。

公开(公告)号：US20030059565A1

公开(公告)日：2003-03-27

申请号：US10254934

申请日：2002-09-26

申请人： Dai Nippon Printing co., Ltd.

发明人： Hiroyuki Otaki ,  Kenji Ueda ,  Fumiko Noujima

IPC分类号： B32B009/00

CPC分类号： G03H1/041 ,  G03H1/0011 ,  G03H1/0236 ,  G03H1/0248 ,  G03H1/18 ,  G03H2001/187 ,  G03H2240/50 ,  G03H2250/10 ,  G03H2250/12 ,  G03H2250/32 ,  G03H2250/35 ,  G03H2250/40 ,  G03H2270/54 ,  Y10T156/1051 ,  Y10T428/14 ,  Y10T428/1405 ,  Y10T428/1476 ,  Y10T428/1481 ,  Y10T428/1486 ,  Y10T428/149 ,  Y10T428/1495 ,  Y10T428/15 ,  Y10T428/24802 ,  Y10T428/24851 ,  Y10T428/2486 ,  Y10T428/24868 ,  Y10T428/24942

摘要： There are provided a hologram laminate and a hologram label which do not involve any problem in the production process per se of forging preventive labels using a volume hologram, can provide a reliable process of the attainment of forgery preventive effect, and can make difficult to notice the signs of the forgery preventive processing. In applying a protective film 108 onto a hologram 107 through a second pressure-sensitive adhesive 109, the adhesive strength is partially varied. By virtue of this construction, upon separation of the protective film 108, the second pressure-sensitive adhesive 109 is partially left on the hologram 107, so that the fact of the separation can be found out. Likewise, the adhesive strength of a first pressure-sensitive adhesive 106 can be partially changed. Further, the adhesive strength of the first pressure-sensitive adhesive 106 is larger than 1% tensile strength of the hologram 107. This can realize a property such that, as soon as the separation of the hologram 107 is attempted, the hologram 107 is elongated and undergoes a color change.