The present invention provides a method for printing high opacity images or coatings using solvent based inks comprising hollow polymeric microspheres, wherein the inks do not contain titanium dioxide. The International Agency for Research on Cancer (IARC) has classified titanium dioxide as “possibly carcinogenic to humans,” The method of the present invention allows one to avoid the use of inks that rely on titanium oxide for high opacity, which has become of importance for articles that come into contact with one's mouth, for example, cigarette tipping papers.

The present invention provides a method for printing high opacity images or coatings using solvent based inks comprising hollow polymeric microspheres, wherein the inks do not contain titanium dioxide. The International Agency for Research on Cancer (IARC) has classified titanium dioxide as “possibly carcinogenic to humans,” The method of the present invention allows one to avoid the use of inks that rely on titanium oxide for high opacity, which has become of importance for articles that come into contact with one's mouth, for example, cigarette tipping papers.

A sol-gel mixture for overcoating surface-relief structures includes at least a first Titanium(IV) precursor and a second Titanium(IV) precursor. The first Titanium(IV) precursor includes a sulfate or phosphate ligand. The second Titanium(IV) precursor includes a carboxylate ligand. The first Titanium(IV) precursor and the second Titanium(IV) precursor are dissolved or suspended in a solvent.

A sol-gel mixture for overcoating surface-relief structures includes at least a first Titanium(IV) precursor and a second Titanium(IV) precursor. The first Titanium(IV) precursor includes a sulfate or phosphate ligand. The second Titanium(IV) precursor includes a carboxylate ligand. The first Titanium(IV) precursor and the second Titanium(IV) precursor are dissolved or suspended in a solvent.

An inkjet ink includes pigment, dispersing agent, fixing agent, binder and water. The binder is selected from polyurethanes of a low acid value, the dispersing agent has a low acid value, and the fixing agent is a multivalent calcium salt used in a low concentration. The inkjet ink is easy to apply by using commercial inkjet printing presses, has high storage stability, adheres to surfaces that do not absorb water, exhibits high resistance to wiping and is very advantageously capable of being overprinted by other water-based inkjet inks. A printing process is also provided.

An inkjet ink includes pigment, dispersing agent, fixing agent, binder and water. The binder is selected from polyurethanes of a low acid value, the dispersing agent has a low acid value, and the fixing agent is a multivalent calcium salt used in a low concentration. The inkjet ink is easy to apply by using commercial inkjet printing presses, has high storage stability, adheres to surfaces that do not absorb water, exhibits high resistance to wiping and is very advantageously capable of being overprinted by other water-based inkjet inks. A printing process is also provided.

Provided is a dispersion liquid of colored resin fine particles for an aqueous ink having excellent stability and a sufficient drawn line intensity; an aqueous ink composition for a writing instrument such as felt-tip pens, marking pens, and ballpoint pens using the dispersion liquid of the colored resin fine particle as a colorant; and a writing instrument loaded with the composition. The dispersion liquid of colored resin fine particles for an aqueous ink includes colored resin fine particles dispersed in water, the colored resin fine particles composed of at least a cyclohexyl (meth)acrylate monomer, and a basic dye or an oil-soluble dye, in which the content of the cyclohexyl (meth)acrylate monomer is 30% by mass or more, and the content of the basic dye or the oil-soluble dye is 15% by mass or more based on the total polymer component constituting the colored resin fine particles.

Provided is a dispersion liquid of colored resin fine particles for an aqueous ink having excellent stability and a sufficient drawn line intensity; an aqueous ink composition for a writing instrument such as felt-tip pens, marking pens, and ballpoint pens using the dispersion liquid of the colored resin fine particle as a colorant; and a writing instrument loaded with the composition. The dispersion liquid of colored resin fine particles for an aqueous ink includes colored resin fine particles dispersed in water, the colored resin fine particles composed of at least a cyclohexyl (meth)acrylate monomer, and a basic dye or an oil-soluble dye, in which the content of the cyclohexyl (meth)acrylate monomer is 30% by mass or more, and the content of the basic dye or the oil-soluble dye is 15% by mass or more based on the total polymer component constituting the colored resin fine particles.

Devices, systems, and methods are directed to binder jetting for forming three-dimensional parts having controlled, macroscopically inhomogeneous material composition. In general, a binder may be delivered to each layer of a plurality of layers of a powder of inorganic particles. An active component may be introduced, in a spatially controlled distribution, to at least one of the plurality of layers such that the binder, the powder of inorganic particles, and the active component, in combination, form an object. The object may be thermally processed into a three-dimensional part having a gradient of one or more physicochemical properties of a material at least partially formed from thermally processing the inorganic particles and the active component of the object.

Devices, systems, and methods are directed to binder jetting for forming three-dimensional parts having controlled, macroscopically inhomogeneous material composition. In general, a binder may be delivered to each layer of a plurality of layers of a powder of inorganic particles. An active component may be introduced, in a spatially controlled distribution, to at least one of the plurality of layers such that the binder, the powder of inorganic particles, and the active component, in combination, form an object. The object may be thermally processed into a three-dimensional part having a gradient of one or more physicochemical properties of a material at least partially formed from thermally processing the inorganic particles and the active component of the object.