Patent Number: 7,972,990

Title: Process for recording into rewritable recording medium of non-contact type

Abstract: In a process for recording into a rewritable recording medium of a non-contact type, when adjacent lines or adjacent overlapping lines are drawn by scanning the medium having a reversible heat sensitive color developing layer on a substrate with laser light and a second line 2 is drawn after a first line 1 is drawn, the time between the start of drawing 1 and the end of drawing 2 and/or the width of the overlapped portion r is controlled as the means for suppressing discoloration of the recorded lines by interference between heat remaining after 1 has been drawn and heat generated while 2 is drawn. When characters, bar codes, solid images or figures are drawn into a rewritable recording medium of the non-contact type by scanning with laser light, excellent readability and visibility of the bar codes can be obtained in recording a plurality of line elements.

Inventors: Iino; Chisato (Koshigaya, JP), Utagawa; Tetsuyuki (Kawaguchi, JP), Nishikawa; Takehiko (Saitama, JP)

Assignee: Lintec Corporation

International Classification: B41M 5/30 (20060101)

Expiration Date: 2019-07-05 0:00:00