RECORDING MEDIUM

PURPOSE:To obtain a recording medium superior in aqueous ink absorbing speed and capacity to form an image superior in durability, such as water resistance and adhesion, and fastness by a method wherein an ink accepting layer of the recording medium is made of a specific material. CONSTITUTION:A tit...

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Bibliographic Details
Main Authors HOSODA TORU, YOSHIDA AKIO, FUNAKOSHI HIDETADA, SAKAI NAOYUKI
Format Patent
LanguageEnglish
Published 26.03.1992
Subjects
COLOUR PRINTING
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PURPOSE:To obtain a recording medium superior in aqueous ink absorbing speed and capacity to form an image superior in durability, such as water resistance and adhesion, and fastness by a method wherein an ink accepting layer of the recording medium is made of a specific material. CONSTITUTION:A title recording medium consists of a substrate sheet and an ink absorbing layer provided at least on one surface of the substrate sheet. The ink absorbing layer contains a film forming agent and an aggregate. The film forming agent is a mixture composed of 100 pts.wt. (solid content) synthetic resin emulsion and 10-200 pts.wt. (solid content) colloidal silica. The aggragate is contained 100-800 pts.wt. per 100 pts.wt. of the film forming agent mixture. As the synthetic resin emulsion in use, for example, an acrylic or acryl-styrene resin is preferable. The colloidal silica in use which is approximately 1-100 millimicron silica particles dispersed in water is stabilized in a medium. As the aggregate, a calcium carbonate which does not deteriorate the performance of the ink absorbing layer is desirably used in a range of 10-100wt.% per 100 pts.wt. of the aggragate.
Bibliography:Application Number: JP19900209129