中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

3 records (took 0.011 seconds)

    Aqueous ink
    1.
    发明授权
    Aqueous ink 有权

    公开(公告)号：US11505709B2

    公开(公告)日：2022-11-22

    申请号：US16957189

    申请日：2018-12-25

    Applicant: KAO CORPORATION

    Inventor： Daiki Kawata ,  Masashi Inoue ,  Tomoaki Il

    IPC: C09D11/107 ,  B41M5/00 ,  C09D11/033 ,  C09D11/322 ,  B41J2/01 ,  B41J2/21

    Abstract: The present invention relates to [1] a water-based ink containing water-insoluble polymer particles (A), an organic solvent (B) and water, in which a polymer constituting the water-insoluble polymer particles (A) is in the form of a crosslinked polymer; the organic solvent (B) contains a polyhydric alcohol ether; and a rate of change in viscosity of the organic solvent (B) as calculated according to the formula (1) is not more than 140%, and [2] a printing method of printing characters or images on a printing medium using the water-based ink described in the above [1], in which a water absorption of the printing medium per a unit surface area thereof as measured by contacting the printing medium with pure water for 100 milliseconds is not less than 0 g/m2 and not more than 10 g/m2.

    Aqueous ink
    2.
    发明授权
    Aqueous ink 有权

    公开(公告)号：US11180671B2

    公开(公告)日：2021-11-23

    申请号：US16626419

    申请日：2018-06-29

    Applicant: KAO CORPORATION

    Inventor： Masashi Inoue ,  Daiki Kawata

    IPC: C09D11/322 ,  B41M5/00 ,  B41M5/52 ,  C09D11/023 ,  C09D11/033 ,  C09D11/037 ,  C09D11/107

    Abstract: The present invention relates to a water-based ink containing at least pigment-containing water-insoluble crosslinked polymer particles (A), a polymer emulsion (B) and water, in which a water-insoluble crosslinked polymer constituting the crosslinked polymer particles (A) is obtained by subjecting a polymer that contains a constitutional unit derived from a carboxylic acid monomer having an acid value of not less than 200 mgKOH/g and a constitutional unit derived from a hydrophobic monomer, to crosslinking reaction with an epoxy compound, and a polymer constituting the polymer emulsion (B) contains a constitutional unit derived from a carboxylic acid monomer and a constitutional unit derived from a hydrophobic monomer. The water-based ink of the present invention is excellent in ejection stability and fastness of the printed characters or images while maintaining good optical density.

Patent Agency Ranking