44results about How to "Fast ink absorption" patented technology

The invention discloses a method for preparing high-concentration nano aluminum hydroxide aqueous dispersion, which comprises the following steps of: (1) adding monoacid serving as a dispersing agent into deionized water, and regulating the pH value to be 2 to 6.5; (2) adding nano aluminum hydroxide powder with stirring for dispersing; and (3) adding a surface modifier to modify the surface of the nano aluminum hydroxide with stirring, and finally preparing the high-concentration nano aluminum hydroxide aqueous dispersion with the concentration of between 30 to 66 weight percent, wherein the step (2) and the step (3) are simultaneously or alternately performed. The prepared nano aluminum hydroxide aqueous dispersion has the characteristics of high concentration, low viscosity, high stability and the like, and is particularly suitable to be applied to blotting materials.

A water-proof medium for ink-jet print is composed of a substrate layer and an ink-absorbing layer prepared from inorganic pigment and adhesive. Said inorganic pigment is the nanofiber-shaped alpha-AlO(OH) and nanoflake-shaped alpha-AlO(OH).

The invention relates to the technical field of thermal sublimation transfer printing and discloses an instant-dry type thermal sublimation transfer printing PET membrane. The instant-dry type thermal sublimation transfer printing PET membrane sequentially comprises a perforated PET membrane layer, a water absorbing and permeating layer, a porous layer and a surface channel layer from bottom to top; the porous layer is made of interpenetrating network resin formed by cross linking of cellulose, sodium carboxymethyl cellulose or starch and cationic modified polyacrylamide or interpenetrating network resin formed by cross linking of polyacrylamide, cellulose or sodium carboxymethyl cellulose and cationic modified starch; on one hand, the interpenetrating network resin can expand to bear dye and quickly absorb ink; and on the other hand, the composition of the resin is adjusted, and the density of a network is controlled, so that the water permeability is improved, and water molecules can quickly enter the water absorbing and permeating layer. The perforated PET membrane layer has good toughness and mechanical strength, and the size is stable in a printing process, so that the problem of shrinkage of an existing paper base material due to weather is solved. The instant-dry type thermal sublimation transfer printing PET membrane disclosed by the invention has the characteristics of instant dryness after printing, quick ink absorption and good dimension stability; and the demands of quick printing and high-efficiency production are met.

A printing medium has a base layer, an ink receptive layer coated on the base layer, and an undercoating layer formed between the base layer and the ink receptive layer. The undercoating layer has a highly glossy resin property. Accordingly, regardless of a type of a material that is used in the base layer, the printing medium always offers rapid ink absorption, a vivid color image, excellent color fixation, a high water and light resistance, and high glossiness.

The invention relates to a graphene oxide inkjet recording material and a manufacturing method of the graphene oxide inkjet recording material, which aim at solving the technical problems that the existing expansion type ink absorption layer inkjet recording material slowly absorbs ink and the interspace type ink absorption layer inkjet recording material likely has folded flaws. The graphene oxide inkjet recording material provided by the invention is composed of a base and a graphene oxide / acrylic copolymer coated on the base. The manufacturing method provided by the invention comprises the following steps: 1, oxidating graphite; 2, purifying the graphene oxide; 3, functionalizing the graphene oxide; 4, adding double-bond graphite oxide, acrylic acid, water and initiator in a reactor to react under the protection of insert gas so as to obtain the graphene oxide / acrylic copolymer, and then coating the graphene oxide / acrylic copolymer on the base to obtain the graphene oxide inkjet recording material. The graphene oxide inkjet recording material provided by the invention can be applied to the field of inkjet printing.

A thermally-responsive dispersant for an aqueous dispersion of positively- or negatively-charged or chargeable solid or liquid particulates, comprises a compound having an anchoring moiety linked to a thermally-responsive polymeric stabilizing moiety, other than a polyalkylene oxide, the polymeric moiety having a lower affinity for the surface than the anchoring group below the thermal transition temperature, the particulates being positively-charged or chargeable when the anchoring moiety contains an acid and / or hydroxy group and has a net acidity or neutrality and the particulates being negatively-charged or chargeable when the anchoring moiety has a basic group and has a net basicity, wherein the dispersion exhibits a change in sign from negative to positive and an increase in magnitude of a rheological property (viscosity at low shear and / or complex modulus at low amplitude oscillatory shear), on increasing the temperature from below to above the thermal transition temperature.

An inkjet receiver is described which comprises a support and one or more layer coated thereon, at least one layer of which comprises one or more metal organosilicate polymer particulate materials. The metal organosilicate polymer particulate materials are obtainable by contacting a metal salt with a silicon-containing compound having an organic substituent in an organic solvent, wherein either the silicon-containing compound contains a basic group and / or the reaction is conducted in the presence of a base, wherein the metal is selected from one or more of aluminum, magnesium strontium, calcium or zinc and the silicon-containing compound comprises hydrolyzable and non-hydrolyzable substituents such as to form a metal organosilicate polymer particulate material therefrom. The described inkjet receiver is useful for forming images by inkjet printing having excellent color fastness over time.

A sheet for ink jet recording, comprising a sheet support and at least one ink receptive layer containing organic particles superimposed on a recording surface side of the sheet support, which sheet for ink jet recording has a recording surface exhibiting an angle of contact of dropped water with the recording surface, measured 10 sec after dropping of 4 mul of pure water on the recording surface, of 90 DEG or more and exhibiting an angle of contact of dropped ink with the recording surface, measured 1 sec after dropping of 4 mul of ink on the recording surface, of 30 DEG or less. The provided sheet for ink jet recording is excellent in ink absorptivity, is excellent in color density, light fastness and yellowing resistance, and exhibits such a water repellency that print surface can be protected from water through repelling of water despite rapid absorption of inks.

The invention provides an ultra-white front-printing lamp box sheet. The ultra-white front-printing lamp box sheet comprises a substrate layer and an ink absorption layer, wherein the ink absorption layer comprises the following components in parts by weight: 60-70 parts of silicon dioxide, 450-550 parts of an acrylic emulsion, 0.8-1.8 parts of a dispersing agent, 0.2-0.5 part of a defoaming agentand 220-300 parts of water. The invention also provides a preparation method of the ultra-white front-printing lamp box sheet. The preparation method comprises the following steps: S1, preparing coating liquid of the ink-absorbing layer; S2, carrying out corona treatment on a polyester film; and S3, coating the polyester film pretreated in the step S2 with the ink-absorbing layer coating liquid in an extrusion nozzle coating manner, conducting drying to obtain the ink-absorbing layer, and performing winding to prepare the ultra-white front-printing lamp box sheet. The ink absorption layer ofthe lamp box sheet is high in adhesive force with the substrate, resistant to scraping, high in ink absorption speed, fine in picture, good in color reducibility and uniform in light transmission during light source irradiation, and the phenomenon that a light source is irregular is avoided.

The invention relates to the technical field of heat sublimation transfer, and discloses instant dry type heat sublimation transfer digital paper. The instant dry type heat sublimation transfer digital paper sequentially comprises base material paper, a water absorbing and permeating layer, a porous layer and a surface channel layer from bottom to top. The porous layer is interpenetrating polymer network resin formed by cross linking of cellulose or sodium carboxymethylcellulose or starch and cation modified polyacrylamide or formed through cross linking of polyacrylamide or cellulose or sodium carboxymethylcellulose and cation modified starch. On one hand, the interpenetrating polymer network resin can expand to pocket dyestuff, and rapid ink sucking is conducted; and on the other hand, resin components are adjusted, the network density is controlled, so that the water permeability is improved, and water molecules rapidly enter the water absorbing and permeating layer. Holes are formed in the hydrophilia end of the water absorbing and permeating layer, and water in ink is adsorbed into the holes and rapidly transmitted to the cellulose paper base material. The instant dry type heat sublimation transfer digital paper has the beneficial effects that dryness can be achieved immediately during printing, ink absorbing is rapid, and the transfer effect is good; and requirements of existing rapid printing and efficient manufacturing are met.

The invention belongs to the field of transfer paper and particularly relates to a piece of thermal sublimation and transfer digital paper with high ink suction amount. The thermal sublimation and transfer digital paper comprises a piece of substrate paper, a hydrophobic layer coated on the surface of the substrate paper, an ink suction layer coated on the surface of the hydrophobic layer, and a surface layer on the upper surface of the ink suction layer. In terms of calculation by weight, the ink suction layer is a composite material of an inorganic material and cationic polyacrylamide cellulose interpenetrating network resin, wherein the inorganic material is one or a combination of two of porous silicon dioxide or porous calcium carbonate or porous alumina. The hydrophobic layer is organosilicone modified acrylic resin. According to the thermal sublimation and transfer digital paper, the composition material which is one or the combination of two of the porous silicon dioxide or the porous calcium carbonate or the porous alumina is added into the ink suction layer, the solid porous structure can rapidly and sufficiently absorb dye molecules, and the ink suction amount of the thermal sublimation and transfer digital paper is remarkably increased.

A matt and antistatic spray coating, comprising, in parts by weight, raw materials of: 20-30 parts of pure acrylic emulsion, 15-25 parts of styrene-acrylic emulsion, 5-10 parts of polyvinyl alcohol glue, 3-8 parts of matt powder, 2-5 parts of antistatic agent solution, 1-3 parts of kaolin, 0.1-0.2 parts of dispersant, 0.2-0.5 parts of whitening agent, 0.2-0.5 parts of antifoaming agent, 0.5-0.8 parts of conductive agent, 0.4-0.6 parts of wetting agent and 30-40 parts of deionized water. A preparation method for said spray coating comprises steps of: formulating an antistatic agent solution, formulating polyvinyl alcohol glue, formulating spray coating, etc. Said spray coating has advantages such as wide range of use, antistatic properties, and soft and bright printing color.

A water-proof medium for ink-jet print is composed of a substrate layer and an ink-absorbing layer prepared from inorganic pigment and adhesive. Said inorganic pigment is the nanofiber-shaped alpha-AlO(OH) and nanoflake-shaped alpha-AlO(OH).