公开(公告)号：JP2000198267A

公开(公告)日：2000-07-18

申请号：JP19552099

申请日：1999-07-09

Applicant: XEROX CORP

Inventor： KOVACS GREGORY J ,  SPRAGUE ROBERT A ,  MALHOTRA SHADI L ,  NAIK KIRIT N ,  LESANI FERESHTEH ,  DANIEL C BOYLES ,  MAYO JAMES D ,  DRAPPEL STEPHAN V

IPC: G03G9/08 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C09D5/00 ,  C09D109/00 ,  C09D121/02 ,  D21H27/00

Abstract: PROBLEM TO BE SOLVED: To provide a chemical composition or the like which enhances the image quality when the composition is applied to a substrate before printing. SOLUTION: The method for treating a substrate for ink jet printing comprises applying a chemical composition for image quality enhancement to the substrate from a channel with a nozzle and discharging an aqueous ink, in a specified pattern, to the image receiving face of the treated substrate from an ink jet head so as to form an image which has a high optical density, a minimum extent of curling, long-lasting water resistance and light fastness.

公开(公告)号：JPH11119038A

公开(公告)日：1999-04-30

申请号：JP21452098

申请日：1998-07-29

Applicant: XEROX CORP

Inventor： SPRAGUE ROBERT A

IPC: G02B6/00 ,  G02B6/04 ,  G02B6/08 ,  G02F1/1335 ,  G09F9/30

Abstract: PROBLEM TO BE SOLVED: To obtain an optical plate including more than one columnar structure whose internal refractive index is larger than that at the border of the columnar structure by providing a cladding structure which has a cladding refractive index smaller than a core refractive index. SOLUTION: The columnar structure which forms a core area 64 is extended substantially from a light entrance surface 30 to a light exit surface 32. At the time of use, light normally enters the core area 64 from the light entrance surface 30, travels in the core area 64, and exits normally from the light exit 32. The core area 64 has a larger refractive index enough to internally reflect the light entering the core area 64 than the cladding area 66. Consequently, the substrate can be formed including columnar structures which each have the refractive index larger in itself than at its border and has its border prescribed by the discontinuity of the refractive index.