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

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.

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 discloses a medical digital ink-jet printing paper. The medical digital ink-jet printing paper comprises a printing base paper of which both surfaces are coated with sprayed films. The surfaces of the printing base paper are coated with coatings. The printing base paper comprises a raw paper as an interlayer and the polyethylene sprayed films coated on the surfaces of the raw paper. The polyethylene sprayed film comprises, by weight, polyethylene, dicumyl peroxide and TiO2. The coating comprises, by weight, nanoscale SiO2, nanoscale TiO2, nanoscale Al2O3, PVA, polyacrylate, a stabilizer and mercaptobenzimidazole. The medical digital ink-jet printing paper has the advantages that in production, environmental pollution is small; in use, ink-jet printing does not produce harmful gas such as ozone; and the medical digital ink-jet printing paper can be naturally degraded and can produce small environmental pollution.

The invention relates to a digital ink-jet non-woven base paper, which is composed of the following formula components by weight percentage: 66-74% of bleached chemical pulp, 8-15% of chemical fiber, 10-15% of filler, 6-12% of an adhesive, and 0.5%-1.5% of a chemical additive. The digital ink-jet non-woven base paper provided by the invention has the advantages of environmental protection, soft hand feel, high grade, durability and easy construction, good printing effect, bright color and good layering, increases the smoothness of finished paper, achieves better printing effect and stronger stereoscopic sense, satisfies the requirements of people for environmental protection and health, and also achieves the aesthetic requirement.

The invention relates to the technical field of sublimation transfer printing and discloses instant dry type sublimation transfer digital paper. The instant dry type sublimation transfer digital paper comprises perforated PP paper, a water absorbing and permeable layer, a porous layer and a surface channel layer which are sequentially arranged from bottom to top; the porous layer is made of interpenetrating network resin formed by crosslinking of cellulose or sodium carboxymethylcellulose or starch and modified cationic polyacrylamide, or formed by crosslinking of polyacrylamide or cellulose or sodium carboxymethylcellulose and modified cationic starch; on one hand, the interpenetrating network resin can swell to 'catch' a dye for quick ink absorption, and on the other hand, components of the resin are adjusted and the network density is controlled to improve the water permeability, so that water molecules can quickly enter the water absorbing and permeable layer; and the perforated PP paper has excellent flexibility and mechanical strength and is stable in size in the printing process, so that the problem of shrinkage, caused by weather, of the conventional paper base material is solved. The instant dry type sublimation transfer digital PP paper has the characteristics of being instant in drying, quick in ink absorption, good in size stability and low in cost, and can meet the requirements for quick printing and efficient manufacturing at present.

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.

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 discloses Chinese art paper for micro-spraying and particularly provides Chinese art paper for artwork copying by adopting a multicolor micro-spraying printer and provided with a coating. The Chinese art paper is characterized in that continuously rolled machine-made Chinese art paper produced in large-scale mode is used as raw paper, bottom coating, face coating and back coating is conducted on the surface of the paper in an optimized combined coating mode, a coating formula and a coating process are optimized, and moisture drying is controlled. The produced Chinese art paper is uniform and consistent in coating distribution and coating Chinese art paper. During printing, the ink absorbing speed is high, color uniformity is consistent, and no printing stain problem is produced. Printed patterns are high in overall color density, wide in color gamut and high in resolution ratio, and ideal contrast reappearing can be obtained. The Chinese art paper adopts a high-end coating device and combines with an advanced coating process for production, stable production control can be achieved, and accordingly stable product quality can be obtained. The bottleneck problem that at present, high-grade products cannot be produced at home is solved.

The invention belongs to the field of coatings, and discloses a yellowing-resistant weak solvent inkjet coating which comprises the following raw materials in parts by weight: 30-40 parts of acrylic emulsion, 10-15 parts of a polyvinyl alcohol solution, 8-12 parts of silicon dioxide, 0.3-1 part of nano titanium dioxide sol, 0.1-0.4 part of a whitening agent, 0.05-0.08 part of a dispersing agent, 0.001-0.003 part of phthalo blue, 0.002-0.005 part of permanent violet and 40-50 parts of deionized water. The invention further discloses a preparation method of the inkjet coating. The preparation method comprises the steps of preparation of the polyvinyl alcohol solution, preparation of a whitening liquid, preparation of the inkjet coating and other steps. The inkjet coating provided by the invention is capable of adapting to different substrates, and has the advantages of high whiteness and yellowing resistance.

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 thermally-responsive dispersant for an aqueous dispersion of positively- or negatively-charged or chargeable solid or liquid particulate, 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.

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.

The invention belongs to the technical field of materials, and particularly relates to a weak solvent ink absorption flame retardant coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 1 to 7 parts of acrylic acid, 1 to 8 parts of methacrylic acid, 3 to 20 parts of dodecyl methacrylate, 3 to 50 parts of methyl acrylate, 3 to 40 parts of ethyl acrylate, 3 to 50 parts of butyl acrylate, 10 to 70 parts of methyl methacrylate, 3 to 50 parts of butyl methacrylate, 0.2 to 0.6 part of an initiator, 1 to 5 parts of an emulsifier, 1 to4 parts of a leveling agent, 1 to 2 parts of a thickener, 1 to 30 parts of silicon dioxide and 1 to 30 parts of a composite flame retardant. The surface of the coating prepared according to the preparation method is flat, bubble-free, crack-free, good in water resisting effect, high in printing quality, high in flame retardancy, and particularly extremely excellent in ink absorption rate.

The invention discloses a fully-compatible ink-jet printing flame-retardant front-spraying lamp sheet which is characterized in that a back coating is arranged on the back surface of a base material,a bottom coating agent layer is arranged on the front surface of the base material, and a fully-compatible ink-jet printing flame-retardant coating is arranged on the bottom coating agent layer; the fully-compatible ink-jet printing flame-retardant coating is prepared from flame-retardant modified acrylic resin emulsion, and a halogen-free flame retardant, an anti-dripping agent, a smoke suppressor, a leveling agent and an anti-foaming agent are added; the bottom coating agent layer is made of a water-based two-component polyurethane binder; the base material is a transparent PET film; the lamp sheet has the advantages that various ink printing can be compatible; the coating is high in ink absorption speed, capable of adapting to high-speed printing and high in color rendition degree; thelamp sheet is waterproof, ultraviolet-proof, not easy to fade, super-strong in weather resistance, high-temperature-resistant, low-temperature-resistant, high in flatness, high in tensile strength andlong in service life; the lamp sheet is white, fine, semitransparent and uniform in light transmittance, and the light transmittance reaches 50-60%; the flame retardant property is good, the fire isextinguished immediately after leaving the fire, no obvious molten drops exist, and less combustion smoke is generated.

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.

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 aluminium, 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 colour fastness over time.

The invention belongs to the technical field of wall decoration materials and discloses a foaming inkjet material. The foaming inkjet material is prepared from 20-30 parts by weight of an acrylic emulsion, 10-20 parts by weight of a polyurethane emulsion, 10-20 parts by weight of polyvinyl alcohol glue, 3-8 parts by weight of matte powder, 5-12 parts by weight of sodium lauryl sulfate, 2-5 parts by weight of coconut fatty acid diethanolamide, 0.5-2 parts by weight of aziridine and 20-30 parts by weight of deionized water. The invention also discloses a preparation method of the foaming inkjetmaterial. The preparation method comprises: preparing polyvinyl alcohol glue, preparing base coating glue and preparing foaming inkjet glue. The foaming inkjet material has the advantages of environmental protection, wide application range, bright printing color and fast coating ink absorption speed.

The invention relates to a spherical composite film digital paper for thermal sublimation transfer printing, belonging to the technical field of thermal sublimation transfer printing. The spherical composite film digital paper comprises, from bottom to top, a substrate paper (1), a spherical composite film (2) and a surface channel layer (3), wherein the spherical composite film (2) is an interpenetrating network spherical composite film composed of hydrophilic network resin and a porous inorganic substance, or cyclodextrin, or a composition of the porous inorganic substance and cyclodextrin,and the hydrophilic network resin is interpenetrating network resin formed by separate crosslinking of cationic polyacrylamide with an acrylic resin composition and carboxymethylcellulose sodium; andthe spherical composite film (2) will expand and wrap up a dye and realizes multilevel separation of dye molecules and water molecules, and the network density of the spherical composite film is adjusted to improve water permeability. The spherical composite film (2) is directly connected with the substrate paper (1), so rapid drying of ink can be achieved. The coating of the spherical composite film digital paper in the invention is of a two-layer structure; and the spherical composite film digital paper is simple in production process, capable of drying immediately after printing, fast in ink absorption and good in transfer printing effect, and meets the requirements of rapid printing and efficient production.

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 provides a water-based coating liquid for Dupont paper. The water-based coating liquid comprises the following raw materials in parts by weight: 15-30 parts of an ethylene-acrylic acid copolymer, 8-15 parts of polyurethane resin, 2-5 parts of silicon dioxide, 0.01-0.06 part of nano-cellulose, 0.1-0.4 part of a synthesis agent, 8-15 parts of ethanol and 55-70 parts of deionized water, summing to 100 parts. The invention also provides a preparation method of the water-base coating liquid for the Dupont paper. The water-based coating liquid provided by the invention is good in water resistance and does not drop ink when being rubbed, the viscosity of the coating liquid is 100-300 Mpa / S, the coating liquid is easy to uniformly coat due to high viscosity, and finally, the effects of good water-resistant effect and good printing adhesive force are achieved.

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 technical field of heat sublimation transfer printing, and discloses a topological composite film heat sublimation transfer printing digital paper. The topological composite film heat sublimation transfer printing digital paper comprises a base material paper layer (1), a topological composite film layer (2), and a surface channel layer (3) successively from bottom totop; the topological composite film layer (2) is composed of a topological network resin and a porous compound; the topological network resin is an interpenetrating network resin formed via crosslinking of a composition of isophorone diisocyanate and triphenylmethane-4,4',4''-triisocyanate with a composition of carboxymethylcellulose sodium and acrylic resin; the topological composite film layer (2) is capable of expanding to intercept dyes, and realizing multi-layer separation of dye molecules and water molecules, and at the same time, the network intensity of the topological composite film layer (2) is adopted to improve separation performance; the topological composite film layer (2) is directly connected with the base material paper layer (1) so as to realize rapid drying of ink. The topological composite film heat sublimation transfer printing digital paper is of a double-layer structure; the production technology is simple; printing instant drying, rapid ink absorption, and transfer printing effects are excellent, and rapid printing and high efficiency manufacturing requirements are satisfied.

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).

The invention provides water-based coating liquid which is prepared from the following components in 100 parts by weight: 15 to 35 parts of ethylene-acrylic acid copolymer, 15 to 30 parts of polyurethane resin, 5 to 15 parts of cross-linking agent, 2 to 5 parts of silicon dioxide, 0.01 to 0.06 part of nano cellulose and 3 to 6 parts of dispersing agent. The invention further provides a preparation method and application of the water-based coating liquid. The technical innovation point of the invention lies in that nano cellulose is applied to disperse fumed silica, so that silica has a very good dispersion effect, finally, a printed image is full and bright in color and luster and good in color reducibility, and further, due to introduction of a cross-linking agent N-hydroxymethyl acrylamide, the cross-linking speed is increased, and the problem that the surface is dry and the interior is not dry when the ink is dried is solved.