9results about How to "Good ink absorption" patented technology

The invention relates to the technical field of transfer paper coatings, in particular to a thermal dye sublimation transfer paper coating and a preparation method thereof. The preparation method comprises the following steps: coating substrate paper with a photo-thermal dual-curing polyurethane emulsion, and curing to form a hydrophobic layer; the photo-thermal dual-curing polyurethane emulsion is formed by mixing epoxy group end-capped silicon-containing polyurethane and double-bond end-capped polyurethane, wherein the epoxy group end-capped silicon-containing polyurethane is obtained by modifying hydroxyl-terminated polydimethylsiloxane and capping propylene glycol diglycidyl ester, and the double-bond end-capped polyurethane is obtained by carrying out chain extension on glycerol monoglycidyl ether and capping hydroxyethyl acrylate; coating the hydrophobic layer with an ink-absorbing layer coating containing sulfhydrylated silicon dioxide, an acrylamide monomer and sodium carboxymethyl cellulose, and performing crosslinking to form an ink-absorbing layer; and finally, coating a polyvinyl alcohol solution on the ink absorption layer to form a surface layer. The thermal dye sublimation transfer paper designed by the invention is high in coating adhesive force and good in transfer effect.

The invention belongs to the technical field of functional coatings, and discloses an ink-absorbing filler and a preparation method of a paper surface waterproof ink-absorbing coating emulsion. The preparation method of the ink-absorbing filler comprises the following preparation steps: (1) carrying out surface modification on porous silicon dioxide micro-powder by adopting an epoxy silane coupling agent to obtain epoxy modified porous silicon dioxide micro-powder; and (2) heating and dissolving a cyclodextrin compound in an alkaline aqueous solution, then adding the epoxy group modified porous silicon dioxide micro powder in the step (1), carrying out heat preservation and stirring reaction, and filtering, washing and drying a product to obtain the cyclodextrin compound modified porous silicon dioxide ink-absorbing filler. The cyclodextrin compound is adopted to perform surface modification on the conventional silicon dioxide ink-absorbing filler, so that the stability and the ink-absorbing effect of the ink-absorbing filler in a matrix resin emulsion can be remarkably improved, and the structural strength and the water resistance of a coating and paper can be remarkably improved.

This invention relates to the field of transfer paper coating technology, specifically to a thermal sublimation transfer paper coating and its preparation method. The invention first coats a photothermal dual-curing polyurethane emulsion onto a substrate paper, curing it to form a hydrophobic layer. The photothermal dual-curing polyurethane emulsion is composed of an epoxy-terminated silicone polyurethane modified with hydroxyl-terminated polydimethylsiloxane and capped with propylene glycol diglycidyl ester, and a double-bond capped polyurethane obtained by chain extension with glycerol monoglycidyl ether and capping with hydroxyethyl acrylate. Next, an ink-absorbing coating containing mercapto-modified silica, acrylamide monomer, and sodium carboxymethyl cellulose is coated onto the hydrophobic layer, cross-linking to form an ink-absorbing layer. Finally, a polyvinyl alcohol solution is coated onto the ink-absorbing layer to form a surface layer. The thermal sublimation transfer paper coating designed by this invention exhibits strong adhesion and excellent transfer effect.

The invention provides antibacterial and insect-proof silk paper for calligraphy and painting and a preparation method of the antibacterial and insect-proof silk paper, and relates to the technical field of papermaking. Comprising the following steps: S1, putting flat silk into warm water, adding lauryl sodium sulfate, urea and Ca (ClO) 2, preserving heat, standing and stirring; then adding NaOH, standing and rubbing, then fishing out the flat silk, soaking and cleaning with water, spreading and drying; s2, soaking the dried flat silk in an antibacterial insect-resistant solution, fishing out and airing, repeatedly soaking and airing for 2-3 times, paving, and drying; s3, soaking the flat silk dried in the step S2 in a whitening and softening solution, and then fishing out, flatly laying and drying; and then spraying antibacterial nanocapsules on one or two surfaces of the silk paper, and drying to obtain the silk paper. The silk paper prepared by the method is high in white cleanliness and beneficial to storage, and has antibacterial and corrosion-resistant properties.

The invention discloses ecological environment-friendly trademark cloth suitable for water-based ink printing and a printing device of the ecological environment-friendly trademark cloth. The ecological environment-friendly trademark cloth comprises chinlon-polyester plain base cloth, the D number of the chinlon-polyester plain base cloth is 40D-80D, the F number of the chinlon-polyester plain base cloth is 1F-48F, a coating is arranged on the chinlon-polyester plain base cloth, nylon waste silk coating glue is adopted for the coating, and the formula of the nylon waste silk coating glue comprises 90-110 g of methyl alcohol and 30-40 g of calcium chloride; 31-41g of citric acid modified kaolin; and 0.1 to 0.4 g of a dispersant CF-10. By selecting the filler which is large in specific surface area, small in particle size and uniform in distribution, proper in gel-pigment ratio and suitable in coating thickness control, a coating film forms a micropore structure which is uniform in pore diameter and high in porosity, the total pore volume of the coating is increased, the ink absorbency of the coating can be effectively improved, ink can be solidified more quickly, the quick-drying effect is achieved, and the service life of the ink is prolonged. The problem that printing is not clear due to the fact that an existing label tape is irregularly diffused on an ink-jet printer is solved.

The invention discloses a color ink-jet printing paper coating and a preparation method thereof. The coating is prepared from the following components in parts by weight: 50 to 80 parts of gas-phase SiO2 aqueous solution, 20 to 50 parts of zeolite aqueous solution, 30 parts of PVA-1788 aqueous solution, 5 parts of polyamine, 0.6 to 0.7 part of defoaming agent, 0.1 to 0.4 part of rheological agent, 50 parts of deionized water and 0.1 to 0.4 part of dispersing agent. The quasi-preparation method of the coating comprises the following steps: adding a gas-phase SiO2 aqueous solution and a zeolite aqueous solution into deionized water under the condition of room temperature, stirring for 10 minutes under the condition of 1000r / min, then adding a PVA-1788 aqueous solution, continuously stirring for 5 minutes, finally adding polyamine, a defoaming agent and a rheological agent, and uniformly stirring and mixing to obtain the color ink-jet printing paper and the preparation method thereof. According to the invention, the problem of non-uniform coating of a coating machine due to high coating viscosity is improved, and the coating method is suitable for a modern high-speed coating machine. The color ink-jet printing paper prepared through the method is good in ink absorbency, high in color fixing capacity and beneficial to improving the color density.

The invention belongs to the technical field of papermaking, and particularly relates to high-strength kraft board paper with good surface ink absorption capacity. In order to solve the problems that in the prior art, the proportion of wood pulp is too high, so that poor ink absorption and printing white leakage are prone to occurring during paperboard printing, the high-strength kraft board paper with the good surface ink absorption capacity is provided and comprises a surface layer, the surface layer is prepared from the following components in parts by mass: 40 to 50 parts of wood pulp fiber, 2 to 4 parts of ink-absorbing composite modifier, 0.3 to 0.5 part of sizing agent, 0.2 to 0.4 part of dry strength agent and 3 to 5 parts of bentonite. According to the invention, the ink-absorbing composite modifier is added into the surface layer, so that the ink adsorption capacity of the surface of the paperboard is remarkably improved, and the problems of poor ink absorption and printing white leakage are avoided on the premise that 80% or more of wood pulp is kept for the surface layer of the paperboard.

This invention provides a method for preparing coated notebook paper, comprising the following steps: S1, preparing base paper; S2, coating the surface of the base paper to form a coating layer, the coating layer comprising pigments and adhesives, wherein the adhesives comprise polyvinyl alcohol and enzyme-converted starch, comprising 100-110 parts by weight of pigment, 3-5 parts by weight of polyvinyl alcohol, and 10-14 parts by weight of enzyme-converted starch; S3, subjecting the base paper treated in step S2 to a second drying, calendering, and winding process to obtain the coated notebook paper. This application also provides coated notebook paper prepared by the above method. The coated notebook paper prepared by the method provided in this application has a fine surface, smooth writing, minimal pen wear, minimal ink bleeding, and rapid drying. It also possesses good coating strength and anti-bleed-through properties, making it particularly suitable as high-grade notebook paper.

The invention relates to the technical field of auxiliary equipment, and discloses an auxiliary device for calligraphy practice, which comprises a table plate which is used as a basic component of the whole device and is used for assembling and bearing each processing mechanism and a subordinate lower structural component; the correction assisting mechanism is arranged on the front side of the table board and used for conducting auxiliary correction treatment on the body posture of the practicer in the calligraphy practicing process; and the light and shadow guide mechanism is arranged at the top of the table board. By adding and arranging the light and shadow guide mechanism, a calligraphy sample is clearly projected on paper by means of an ingenious light and shadow projection mode when calligraphy is practiced, so that a practicer can intuitively compare own works with a copy book and accurately perceive the difference between the works and the copy book, the stroke form, the structural layout and the overall romantic charm are not needed, and the calligraphy effect is improved. And on the basis of the clear reference, a practicer can timely correct defects in the practice process and continuously perfect writing, so that the efficiency and the quality of calligraphy practice are effectively improved.