11results about How to "Improve quick-dry performance" patented technology

The invention provides secondary modified silica sol and a preparation method and application thereof.The secondary modified silica sol is prepared from silica sol, a primary modified component, a secondary modified component and water, the primary modified component comprises mPEG5K-silane and poloxamer 188, and the secondary modified component comprises waterborne acrylic emulsion and span 80; the specific raw materials are adopted to carry out secondary modification on the silica sol, so that the obtained secondary modified silica sol is large in viscosity and high in adhesion, the casting back layer slurry containing the secondary modified silica sol is high in wet strength, the collapsibility of an investment casting back layer is improved, the residual strength of a shell is reduced, the quick-drying effect is strong, and the service life of the casting back layer slurry is prolonged. And in the subsequent sand cleaning process, the shell can be vibrated quickly, the residual sand powder is extremely little, the quality and performance of the material are effectively kept, the surface quality of the casting is good, the production efficiency is greatly improved, and the manufacturing cost is saved.

The invention discloses a production process of a micro-fine denier bi-component sheath-core high-quality composite fiber, and relates to the technical field of fibers. The skin-core fiber and the hydrophobic polylactic acid film present wettability gradient change, so that the additional pressure of the fiber on water is greatly enhanced, the water is spontaneously transmitted from the hydrophobic surface to the hydrophilic interior, the water is directionally transmitted, and the pore-foaming agent in the skin layer and the film layer is eluted and dissolved by using the water solubility principle to form a porous structure; the raw materials of the core layer are further activated by sodium hydroxide, so that micropores are distributed in three layers in the fiber to form capillary channels, and the moisture absorption and quick drying performance of the fiber is improved.

The present application relates to the technical field of preparation of polymer materials, and specifically to a PE / PET composite fiber material and a preparation method thereof. A PE / PET composite fiber material comprises a skin layer and a core layer, wherein the raw material of the skin layer comprises the following components in parts by mass: 20‑40 parts of a modified PE resin, 2‑8 parts of a toughening agent, and 1‑4 parts of an antioxidant; the raw material of the core layer comprises the following components in parts by mass: 30‑65 parts of a modified PET resin; wherein the modified PE resin is an amino-terminated polyether grafted polyethylene; and the modified PET resin is a polyacrylamide grafted PET. A PE / PET composite fiber material of the present application improves the problem that the water absorption and air permeability of the skin-core composite fiber cannot meet the quality improvement of non-woven fabrics, so that the PE / PET composite fiber material meets the quality requirements of moisture absorption and air permeability of non-woven fabrics.

The invention discloses a water-based digital printing sublimation ink, and relates to the technical field of digital printing. A water-based digital printing sublimation ink comprises the following raw materials by weight: 60-80 parts of aqueous solvent, 5-30 parts of nano-color paste, 0.1-3 parts of wetting agent, 1-10 parts of emulsifying thickener, 0.1-1 parts of pH regulator II, and 0.1-1 parts of bactericidal preservative. By adding a wetting agent and an emulsifying thickener, not only the ink has good printing fluency and stability, the sublimation ink is not easy to clog the nozzle during high-speed printing, and the occurrence of broken holes during printing is reduced, but also the quick-drying property of the ink is greatly improved, so that the sublimation ink can dry quickly after transfer, and prevent the ink from blurring and diffusing during the transfer and drying process, which is conducive to improving the sharpness of printing and reducing the sense of grain, and improving the printing effect.

This invention belongs to the technical field of printing inks for cigarette tipping paper, and discloses a special ink for cigarette tipping paper that is resistant to oil and solvents, and its preparation method. The ink comprises a CAB-based polyurethane-acrylic composite binder, pigment paste, carboxyl-containing polyethylene wax emulsion, water-dispersible polycarbodiimide, wetting and dispersing agent, leveling agent, defoamer, ethanol, and deionized water. The CAB-based polyurethane-acrylic composite binder is obtained by composite emulsion polymerization of CAB-polycarbonate polyurethane acrylate macromonomers with hydrophilic extended chain structures and acrylate monomers. This composite binder combines cellulose acetate butyrate segments, polycarbonate polyurethane segments, and acrylate segments, and is combined with carboxyl-containing polyethylene wax emulsion and water-dispersible polycarbodiimide, giving the resulting ink good resistance to triacetin, ethanol, cigarette flavoring oils, abrasion, and sticking, making it suitable for printing on cigarette tipping paper.

This invention relates to high-performance fibers and products, and composite materials, particularly to a water-absorbing and quick-drying agent, a water-absorbing and quick-drying treatment method, water-absorbing and quick-drying fibers, and water-absorbing and quick-drying textiles. The water-absorbing and quick-drying agent of this invention is used to treat fibers or fabrics and includes: a solvent; an alcohol substance with a volume content of 1-300 g / L; and an etherified vinyl urea resin with a volume content of 1-150 g / L. The pure cotton moisture-absorbing and quick-drying fibers or fabrics produced by this invention improve the moisture absorption and quick-drying properties of pure cotton products while retaining the skin-friendly and soft characteristics of cotton fibers, thus developing a high-performance moisture-absorbing and quick-drying pure cotton fabric suitable for sportswear.

The present application relates to the technical field of curing glue paint, in particular to a preparation method of water-based single-component plastic paint. The water-based single-component plastic paint prepared by the present application overcomes the problems of poor environmental protection and difficult balance of comprehensive performance of paint film. The water-based single-component plastic paint is prepared by optimizing the preparation method and raw material system; the alicyclic isocyanate is selected and step-by-step reaction is combined with ring-opening epoxy resin, quercetin and disulfide to form a dense coating, so as to improve corrosion resistance and adhesion; hydrolyzed KH560 and polyurethane-polyurea composite system are used to introduce fluorine-containing monomers, so as to enhance water resistance and low-temperature stability; a three-dimensional network is constructed by free radical copolymerization, triethylamine is added to inhibit polymerization, and the feeding and post-ripening steps are optimized to balance the hardness, drying speed and surface state after cooking. The water-based single-component plastic paint of the present application is suitable for various plastic substrates such as automobile interior and exterior trim and 3C products, and has significant advantages in protection performance and construction adaptability.

The invention relates to the technical field of epoxy alkyd varnish, and specifically to a water-resistant and rust-proof quick-drying epoxy alkyd varnish and a preparation process thereof, comprising the following raw materials by weight: 35-45 parts of epoxy alkyd resin, 8-12 parts of a flaky graphene-based stress modifier, 4-8 parts of soybean oil, 5-7 parts of a supplementary adjustment agent, 4-6 parts of a silane coupling agent, 4-6 parts of a curing agent, 0.2-0.3 parts of a drier, and 30-35 parts of a solvent. The quick-drying epoxy alkyd varnish of the invention adopts epoxy alkyd resin as a base material, and by adding soybean oil, a silane coupling agent, a curing agent and a drier as functional additives, the stress modifier based on flaky graphene and the supplementary adjustment agent are coordinated and matched, and work together, so that the quick-drying and impact-resistant coordinated improvement of the product, as well as the salt spray rust resistance and water resistance stability of the product are significantly improved.

This invention discloses a fast-drying waterborne polyurethane resin, its preparation method, and its application. By weight, it comprises the following components: 30-40 parts of self-made polyester polyol, 30-50 parts of polyether polyol, 2-5 parts of chain extender, 1-3 parts of hydrophilic monomer, 1-3 parts of trimethylolpropane, 40-60 parts of isocyanate, 1.1-1.5 parts of neutralizer, and 50-80 parts of solvent. This fast-drying waterborne polyurethane resin utilizes self-made branched polyester and polyether to construct flexible segments that combine rigidity and flexibility. Low hydrophilic monomer content enables self-emulsification and ensures water resistance. Trimethylolpropane and self-made polyester polyol form a double crosslinking network with built-in branching points. Isocyanate compounding balances hardness and pot life. The high R-value design allows residual NCO to naturally generate urea bonds during emulsification, compensating for the emulsification difficulties caused by low hydrophilicity. Ultimately, it achieves a balance between fast drying and high water resistance without the addition of external drying agents or amine-based chain extension. It combines fast drying, high water resistance, and excellent mechanical properties. The process is simple and low-cost, making it highly valuable for industrial promotion.

The invention belongs to the technical field of shirt preparation, and discloses a moisture-absorbing, quick-drying and solution-drop-free integrated shirt and a manufacturing method thereof.The moisture-absorbing, quick-drying and solution-drop-free integrated shirt comprises a shirt body, the shirt body comprises a shirt fabric for tailoring and forming the shirt, and the shirt fabric comprises an inner moisture-absorbing layer, a middle humidity adjusting layer and an outer breathable layer. The quick-drying agent is stably and long-acting filled in the fabric of the shirt, sweat molecules are quickly diffused from the inside of the fabric to the outside, evaporation is accelerated, the quick-drying performance of the shirt is improved, sweat is quickly evaporated, the shirt is kept dry and comfortable, the time of the sweat staying on the surface of the fabric is shortened, and the shirt is more comfortable. Meanwhile, in cooperation with the combined arrangement of the inner moisture absorption layer, the middle moisture adjusting layer and the outer breathable layer, on one hand, the moisture absorption and quick drying effects are achieved, the wearing comfort is improved, on the other hand, the problem of solution drops is solved, solution drops are prevented from being formed, the use risk in special occasions is reduced, the comprehensive wearing attractiveness is improved, and the shirt is good in comprehensive wearing experience, high in safety and good in use effect.

The invention relates to a dual-curing type polyisocyanate composition as well as a preparation method and application thereof. The polyisocyanate composition comprises a product containing an isocyanurate structure, which is formed by reacting aliphatic diisocyanate with 3-isopropyl-dimethyl benzyl isocyanate, and the polyisocyanate composition at least comprises two isocyanurate mononuclear bodies. The polyisocyanate composition prepared by the invention has the characteristics of UV-thermal dual curing property, low product viscosity, good thermal storage stability and the like, is simple in manufacturing process, and is particularly suitable for protection in the field of circuit boards or 3C electronic products.