PAPER DYEING METHOD
    2.
    发明专利

    公开(公告)号:JPH01104898A

    公开(公告)日:1989-04-21

    申请号:JP23987588

    申请日:1988-09-27

    Applicant: BASF AG

    Abstract: PURPOSE: To obtain a dyed paper having excellent fastness to light with a small amount of a fixing agent in a relatively short time without forming a foam by simultaneously adding specific amounts of a specified cationic fixing agent such as diallyldimethylammonium chloride copolymer, etc., and a pigment to a paper stock and dyeing a paper. CONSTITUTION: A pigment and a fixing agent are simultaneously added to a paper stock to be dyed. A paper is dyed by using 0.01-3 wt.% based on a dried paper stock of a cationic fixing agent such as a homopolymer of a diallyldimethylammonium chloride or a copolymer of it and (meth)acrylamide having >=30 K value, a vinylimidazole homopolymer or a copolymer of it and (meth)acrylamide, a vinylimidazoline (co)polymer, a copolymer containing a polymerized vinylamine unit, a copolymer of acrylamide and a 1-4C dialkyl amino(meth)acrylate, a polyethyleneimine, a condensation product of formamide, dicyandiamide, etc.

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