公开(公告)号：US20090169798A1

公开(公告)日：2009-07-02

申请号：US12327749

申请日：2008-12-03

申请人： Ippei Maekawa ,  Tomonori Endo ,  Mamonu Uchida ,  Yuki Takei ,  Yuaki Shin

发明人： Ippei Maekawa ,  Tomonori Endo ,  Mamonu Uchida ,  Yuki Takei ,  Yuaki Shin

IPC分类号： G11B7/246

CPC分类号： B41M5/52 ,  B41M5/506 ,  B41M5/5218 ,  B41M5/5227 ,  B41M5/5254 ,  B41M2205/38 ,  G11B7/24 ,  Y10T428/21

摘要： Disc-shaped information recording medium comprising optical penetrating substrate having colored underlayer and ink receipt layer in this order on the principal surface of one side of the substrate, wherein the ink receipt layer contains inorganic fine particles, a binder, and a crosslinking agent, and wherein a pore diameter distribution of a gap of the ink receipt layer has a maximum peak in the range of 30 nm or more when the ink receipt layer is measured with a mercury porosimetry method. Since the shrinkage force functioning in the pores of the gaps of the ink receipt layer weakens, a disc-shaped information recording medium having a reduced occurrence of warp is provided.

摘要翻译： 盘形信息记录介质，其包括具有彩色底层的光学穿透基板和在该基板的一侧的主表面上的油墨接收层，其中，墨水容纳层包含无机细颗粒，粘合剂和交联剂，以及 其中当使用水银孔隙法测量墨水接收层时，墨水接收层的间隙的孔径分布具有在30nm以上范围内的最大峰值。 由于在墨水接收层的间隙的孔隙中发挥的收缩力变弱，因此提供了具有减少的翘曲发生的盘状信息记录介质。