Patent classifications
B41M5/5245
SOLVENT RESISTANT GLOSSY PRINTABLE SUBSTRATES AND THEIR METHODS OF MANUFACTURE AND USE
Printable substrates that provide a glossy printable surface with solvent resistance are provided. The printable substrate may include a base sheet having a first surface and a second surface, and a printable coating on the first surface. The printable coating includes a film-forming binder mixture, a crosslinking agent, a partially hydrolyzed polyvinyl alcohol, a first plurality of first silicon dioxide microparticles, a second plurality of second silicon dioxide microparticles, and a cationic dye fixative. The printable substrate may have a gloss level of about 50 to about 60 based on measurement of a gloss meter set with an angle of measurement of 75 degree on the external surface of the printable coating.
COATED PRINT MEDIUM
The present disclosure is drawn to a coated print medium, a method of preparing a print medium, and a printing system. The coated print medium can comprise a substrate and a coating applied to the substrate. The coating can comprise, by solids or dry weight, 5 wt % to 30 wt % of a polymeric binder, 20 wt % to 50 wt % of a cationic latex, 5 wt % to 15 wt % of a multivalent cationic salt, and 1 wt % to 20 wt % of a sulfonic acid- or sulfonate-containing stilbene optical brightener.
THERMAL SUBLIMATION PAPER, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF
The invention relates to a thermal sublimation paper which can be printed with inks containing a sublimatable dye, in particular ink-jet inks, in which paper a hydrophilic thermal transfer layer to be printed is formed on a porous base paper. Thermoplastic particles with an average particle size of between 0.3 and 5 μm and a melting point of between 35° C. and 190° C. are present in the thermal transfer layer. This thermal sublimation paper can be advantageously produced as follows: an aqueous coating slip is applied to a porous base paper having a Cobb value of between 55 and 150 g/m.sup.2, in particular between 70 and 150 g/m.sup.2, in a paper-making or coating machine, online or offline, said aqueous coating slip containing thermoplastic particles and constituents suitable for forming a hydrophilic thermal transfer layer, and a drying step is subsequently carried out in order to obtain the thermal sublimation paper. The thermal sublimation paper can be used advantageously to mint flat materials, in particular films and textiles.
Release layer treatment formulations
There is disclosed a formulation for use with an intermediate transfer member of an indirect printing system, including: (a) a carrier liquid: (b) a positively chargeable polymeric chemical agent having amine functional groups; and (c) a resolubilizing agent selected to improve resolubilization of said chemical agent. Method of use thereof is also provided.
COATING FORMULATION FOR A DIGITAL PRINT MEDIUM
The present invention relates to a cationic coating formulation, which contains beside water a specific anionic ultrafine ground calcium carbonate, a non-ionic polyvinyl alcohol, a water-soluble salt of a divalent metal ion, a dispersing agent and a cationic polymer. Said coating formulation according to the present invention can be used for manufacturing a digital print medium, preferably an inkjet print medium.
COATED PRINT MEDIUM
The present disclosure is drawn to a coated print medium, a method of preparing a print medium, and a printing system. The coated print medium can comprise a substrate and a coating applied to the substrate. The coating can comprise, by dry weight percent, 5 wt % to 30 wt % of a polymeric binder, 20 wt % to 50 wt % of a cationic latex, 5 wt % to 15 wt % of a multivalent cationic salt, and 1 wt % to 20 wt % of an optical brightener; and 5 wt % to 20 wt % of a cationic polyamine.
Printing paper and method for producing printed material
Printing paper is provided that is able to inhibit the occurrence of cockling and wrinkling during printing and inhibit the occurrence of curling after printing when cut into sheets in the case where inkjet printing is carried out in a rotary inkjet printing press while tension is applied from the time the printing paper is rolled out until it is taken up. The printing paper comprises a base paper and a coating layer containing a pigment and a binder on at least one side of the base paper, wherein an ash content of the base paper is 20% by weight to 30% by weight, and specific tensile strength of the printing paper in the CD direction is 9.0 N.Math.m/g or less, and the ratio of (specific tensile strength in the MD direction)/(specific tensile strength in the CD direction) is 1.9 to 2.3, wherein the specific tensile strength is as determined basically in compliance with JIS P 8113:2006.
Image transfer material and polymer composition
Provided is an image transfer material, comprising a support, optionally at least one barrier layer, a melt transfer layer, and an image receiving layer. Also provided is a process for preparing the image transfer material. Further provided is a heat transfer process using the disclosed material. In the heat transfer process, after imaging, the image receiving layer and melt transfer layer are peeled away from the optionally barrier-coated support material and placed, preferably image side up, on top of a receptor element. A non-stick sheet is then optionally placed over the imaged peeled material and heat is applied to the top of the optional non stick sheet. The melt transfer layer then melts and adheres the image to the receptor element. A composition comprising: at least one self-crosslinking polymer, and at least one dye retention aid.
Print media with a top coating
In one example, a print medium includes pigment particles sized less than a hundred nanometers and frictional control additives. An undercoating is disposed between the base material and top coating. The undercoat includes a first sub-layer comprising a pigment fixative agent and a second sub-layer comprising a dye fixative agent. The top coating forms a protective and low friction coating over the undercoating.
COATED PAPER FOR INDUSTRIAL INKJET PRINTING PRESSES AND METHOD OF PRODUCING THE SAME
The present invention is to provide a coated paper for industrial inkjet printing presses comprising: a base paper, and a coating layer containing at least one selected from the group consisting of a cationic resin and a water-soluble polyvalent cationic salt, and a pigment containing kaolin, on the base paper; wherein the content of the kaolin is 30 parts by mass to 80 parts by mass based on 100 parts by mass of the pigment in the coating layer, an arithmetic mean roughness (Ra) stipulated in JIS B 0601:2001 (ISO 4287:1997) of a coated paper surface on the side where the coating layer is located is 4.5 μm to 7.5 μm, the coated paper surface on the side where the coating layer is located has 1 to 350 protruding parts per 1.0 square centimeter, and the protruding part is a protruding part having the maximum width of 10 μm to 100 μm measured using a photographed image of the coated paper surface taken by magnifying 50 times using an electron microscope.
According to the present invention, coated paper for industrial inkjet printing presses that achieves excellent uniformity in color densities and ink absorbability, that has capability of suppressing strike-through of inks, and that achieves excellent paper feeding characteristics can be provided.