The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2000
Filed:
Jan. 31, 1997
Mitsuharu Endo, Susono, JP;
Kabushiki Kaisha TEC, Shizuoka, JP;
Abstract
A technique for transferring at least a part of inks of a plurality of colors onto a recording web sheet in superposition by heating the inks with a thermal head, and by passing the recording web sheet and an ink ribbon, superposed with each other, between the thermal head and a platen. The recording web sheet has a plurality of interconnected pores which have openings formed in a surface of the recording web sheet, and a proportion of a total area of the openings of the pores is more than 50% and less than 80% of a total surface area of the recording web sheet. A proportion of a number of the openings of the pores having a pore diameter of 5-35 .mu.m is more than 50% of a total number of the openings of the pores, and a proportion of a number of the openings of the pores having a pore diameter of at least 35 .mu.m is less than 5% of the total number of the openings of the pores. In addition, a difference between: (i) a contact angle of each of the inks of the plurality of colors and a standard liquid and (ii) a contact angle of the recording web sheet and the standard liquid is not larger than 20 degrees.