Ink-accepting layer forming material and aqueous ink
OwnerKazue Watanabeinventor
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Abstract
An ink-accepting layer forming material is disclosed which is applied in advance to an ink-accepting surface of an object that is to be colored with an ink containing an anionic coloring material. The ink-accepting layer forming material comprises a weak acidic acrylic aqueous emulsion adhesive obtained by copolymerizing one or more (meth)acrylates having an alkyl group with 4-12 carbon atoms and a vinyl monomer, a water-soluble cationic polymer, and an aqueous medium. The acrylic aqueous emulsion adhesive has a viscosity of 4,000-20,000 mPa.s/30° C. when it is in an emulsion state with about 50% solid content, and a dried film of the acrylic aqueous emulsion adhesive has a glass transition temperature within the range from −10 to −50° C.
Claims51
An ink-accepting layer forming material to be applied in advance to an ink-accepting surface of an object that is to be colored with ink containing an anionic coloring material, said ink-accepting layer forming material comprising:
- a weak acidic acrylic aqueous emulsion adhesive obtained by copolymerizing one or more ester (meth)acrylates having an alkyl group with 4-12 carbon atoms and a vinyl monomer;
- a water-soluble cationic polymer;
- and
- an aqueous medium, wherein
- said acrylic aqueous emulsion adhesive has a viscosity of 4,000-20,000 mPa×s/30° C. when it is in an emulsion state with about 50% solid content, and a dried film of said acrylic aqueous emulsion adhesive has a glass transition temperature within the range from −10 to −50° C.,
A water-base ink comprising:
- a weak acidic acrylic aqueous emulsion adhesive obtained by copolymerizing one or more ester (meth)acrylates having an alkyl group with 4-12 carbon atoms and a vinyl monomer;
- a water-soluble cationic polymer;
- an anionic coloring material;
- and
- an aqueous medium, wherein
- said acrylic aqueous emulsion adhesive has a viscosity of 4,000-20,000 mPa·s/30° C. when it is an emulsion state with about 50% solid content, and a dried film of said acrylic aqueous emulsion adhesive has a glass transition temperature within the range from −10 to −50° C.
Dependencies are inferred from the claim text.