920results about How to "Extended drying time" patented technology

Compositions containing at least one silicone resin film former and at least one copolymer comprising at least one backbone and at least one chain, wherein at least one of the at least one backbone and at least one chain is chosen from silicones.

The invention discloses a preparation method and application of modified polyurethane aqueous dispersions of polyisocyanate curing agents. The preparation method comprises the following steps of: carrying out prepolymerization reaction by using polyester polyol, vulcabond monomer and a polyisocyanate curing agent; reacting with a hydrophilic chain-extending agent and a micro-molecule chain-extending agent to obtain polyurethane prepolymer containing hydrophilic groups (carboxyl or sulfonic groups) and isocyanate(NCO)-terminated groups; neutralizing the polymer into salt, and then dispersing the salt into water; and preparing the modified polyurethane aqueous dispersions of the polyisocyanate curing agents by the chain extending of a polyamine chain-extending agent. The modified polyurethane aqueous dispersions of the polyisocyanate curing agents have self-crosslinking function at room temperature, and the self-crosslinking density is over 85%. Compared with non-modified polyurethane aqueous dispersions prepared under the same condition, the modified polyurethane aqueous dispersions have superior film forming property, water resistance, alcohol resistance, pollution resistance, cold resistance, dry/wet rubbing resistance and chemical solvent resistance; and coating films have especially high drying speed, high hardness increment speed and high final hardness.

The present invention relates to a method for forming a strippable coating protective film using a water-based coating composition. The method comprises the following steps: the water-based coating composition is applied to a body surface to form a strippable coating protective film. The water-based coating composition takes synthesized resin emulsion as a substrate and takes water as a dispersion medium. When the water-based coating composition prepared by adopting the method is applied to the surface of an object, the strippable coating protective film can be formed. The formed strippable coating protective film has the advantages of excellent combination property, environmental friendliness, fast drying at normal temperature, wide strippable temperature range and high stripping property.

An acrylate-functionalized alkyd coating composition is disclosed having improved dry time. The compositon includes an acrylate-functionalized alkyd resin, a solvent, and a drier package that provides the composition with a cobalt content of at least 0.01 wt %, based on binder solids content, and a calcium content of from 0.15 wt % to 5 wt %, based on the binder solids content. The drier mixture disclosed results in the coating composition having improved dry time when compared with similar coating compositions using conventional drier packages.

The invention relates to a multifunctional plating assisting additive for a hot dipping metallization process and a preparation and application method thereof, and belongs to the metal material anticorrosive technical field for providing multiple plating assisting efficacy. The technical proposal of the invention comprises that: a plurality of cations or an amphoteric surfactant ( an equivalent concentration of a quaternary ammonium group is between 0.1 and 2 mol/L) and nonionics (an equivalent concentration of a polyoxyethylene group is between 0.5 and 5 mol/L) are dissolved in deionized water. The method can improve the wetting quality between a liquid-state metal and a workpiece, and the adhesive uniformity and continuity of the plating assisting additive, reduces the drying time, prevents the liquid-state metal from falling and splashing, shortens the dipping and plating time, saves raw materials, improves a residue form, reduces an ash content, increases an ash discharge speed, isolates air, stops oxidation, disperses residual dirt and is suitable for a plurality of processes of hot galvanizing, hot plating zinc-aluminum alloy, hot plating aluminum, etc. The preparation steps comprise dissolution, cubage determination, cooling, keeping stand and filling; when the multifunctional plating assisting additive is used, the multifunctional plating assisting additive is directly added into a plating assisting additive solution and is evenly stirred.

The invention relates generally to the field of inkjet recording media and inkjet printing methods. More specifically, the invention relates to a porous base layer of an inkjet recording element, the base layer comprises precipitated calcium carbonate having scalenohedral morphology and ground calcium carbonate.

The invention discloses a bearing washing and drying integration device. The bearing washing and drying integration device comprises a washing machine body, a connecting part and a drying machine body, wherein the washing machine body and the drying machine body are communicated with each other through the connecting part to form a whole body, the washing machine body comprises a washing liquid storage box, a high pressure spray head, a baffle plate, a transmission device and a water discharge device, the transmission device is installed inside the washing machine body, the tail end of the transmission device is arranged on the junction of the connecting part and the drying machine body, a discharge baffle plate is arranged in the connecting part, the drying machine body comprises a drying device, conveyor belts, a roller, steering devices and a receiving box, four conveyor belts are arranged inside the drying machine body, each conveyor belt is installed on the roller, the drying device is correspondently installed on the junction of each conveyor belt and the drying machine body, and the steering device is arranged on the steering position of each conveyor belt. By adopting the bearing washing and drying integration device, the washing and drying of a bearing can be completed in one machine, so that the working efficiency is improved, the production effect of the bearing is guaranteed, and the floor occupation area of the machine is reduced.

The invention discloses a textile dyeing device, comprising a box body, a dye box is fixedly installed at the left end of the bottom of the inner cavity of the box, and a first drive roller is movably installed at the upper left end of the inner cavity of the dye box. The lower end of the cavity is movably installed with a second transmission roller, the upper right end of the inner cavity of the dye box is movably installed with a third transmission roller, the right end of the upper surface of the dye box is provided with a second through hole, and the right end of the bottom of the inner cavity of the dye box is provided with a second through hole. A pressure sensor is fixedly installed. In the invention, the scraper is movably connected to the inner cavity of the second sleeve through the second spring, which can scrape off the dye adhering to the surface of the dyed fabric after dyeing. The fabric is air-dried, which solves the problem that a large amount of dye will adhere to the surface of the fabric during the dyeing process of the existing fabric dyeing machine, which not only prolongs the drying time of the fabric after dyeing, but also causes the waste of dye.

The invention discloses a method for preparing hydroxypropyl-beta-cyclodextrin, which comprises the steps of etherification, neutralization, decoloring, nanofiltration, resin purification, and spray drying. The method of the invention is small in pollution, and the yield in weight is more than 80 percent; meanwhile, the product prepared by using the method of the invention is narrow in substituted ratio range and low in impurity content, and can be used as a pharmaceutic adjuvant.

The composition of a organic (e.g. conducting polymer) solution is reformulated and the device upon which the organic solution is to be deposited is plasma treated to provide a more uniform and flat drying profile for the resulting dried film. This reformulation and treatment induces a more uniform and flatter profile when the reformulated organic solution is allowed to dry into a film on the treated device.

The invention provides a tea dynamic dryer, the structure includes machine rack, drum, outer cover shell, tea inlet bucket, the drum upon the machine rack is placed on the friction wheel and supporting wheel, the lower part of the tea inlet bucket is adapted to one end of the drum tea inlet dynamic-static interval, which is characterized in that: the other end of the air inlet pipe is connected to the hot air transmitting pipe through the floating pipe; the cross sectional area of the central air pipe is gradually reduced from the air inlet end; outer ring surface of the drum is longitudinally equipped with many bar shaped plates; the machine rack is equipped on the machine rack through the swivel-pin, the machine rack horizontal angle modulation mechanism is equipped between the machine base and the machine rack. Under the conditions that the tea is in dynamic, suspending state and is desiccated, the machine has the advantages as follows: the utilization rate of equal diameter drum useful space is high, the waste hot wind is not easy to resort around the drum, the hot efficiency is high, the running time of tea in the drum can be effectively controlled according to the processing demand.

The invention aims at providing an aqueous disperse dye ink-jet printing ink with excellent comprehensive performance capable of overcoming the defects of the traditional disperse dye ink-jet printing ink, and a preparation method of the aqueous disperse dye ink-jet printing ink. The aqueous disperse dye ink-jet printing ink has good ink storage stability and good printing fluency; the service time of a disperse dye ink-jet product is greatly prolonged; the aqueous disperse dye ink-jet printing ink can be cured under the irradiation of ultraviolet light (UV); the comprehensive performances of the ink, such as light resistance, water tolerance, chemical resistance, high and low-temperature resistance, rubbing scratch resistance, high brightness and ageing resistance of the ink are improved; the aqueous disperse dye ink-jet printing ink is applicable to an uncoated and non-printing coating medium and is applied to the fields such as digital printing, digital calico printing, digital images, office documents, outdoor inkjet, ceramic tile wallpapers, glass plastics and surface decoration.

The invention discloses a method for rapidly peeling and transferring a graphene oxide leaching film to a substrate. The method specifically comprises the steps of firstly adding graphene oxide in water, forming graphene oxide dispersion liquid in an ultrasonic dispersion way, arranging the substrate on a sand core of a leaching flask, installing a leaching device, then pouring the prepared graphene oxide dispersion liquid into the leaching device, and starting leaching; then taking out the substrate which is attached with a leached graphene oxide film, and putting the substrate into an organic solvent, enabling the graphene oxide film to be rapidly formed through dewatering, and enabling the graphene oxide film to fall off the substrate; enabling the smooth substrate to be in direct contact with the floated graphene oxide film in the organic solvent, and enabling the graphene oxide film to transfer to be attached onto the substrate. Through the method disclosed by the invention, the drying time is not needed at all, and the time for peeling a thick film is greatly shortened; meanwhile, a thin film can also be peeled, a smooth graphene oxide film can be obtained, and the shape can be well maintained.

A method for saving energy and guaranteeing the quality in the process of dehydration of fruit and vegetable with high water content or water product; the method belongs to the food processing technical field of fruit and vegetable or water product. The present invention adopts the combined processing of hot air drying and hot pump drying or the combined processing of freeze drying and hot pump drying to dehydrate the fruit and vegetable with high water content or water product; with the present invention, energy can be saved by 45 to 60 percent and the appearance and quality of the product are near the simple ordinary dried products. The process is that the raw materials of vegetable and fruit or water product are cleaned, cut and burnt; and then the raw materials are cooled and centrifugally dehydrated; the dehydrated raw materials are seasoned and settled; the settled raw materials are dried by the method of hot pump combined drying and then cooled down for storage; and then metal-detecting process is implemented on the materials and the materials are packed. The present invention adopts the novel process of hot pump combined drying for dehydration; the fruit and vegetable or water product after being dehydrated with the hot pump combined drying are characterized by low heating temperature, short production time, excellent quality and low energy consumption.

The invention provides a graphene dispersion liquid which comprises an organic solvent and a graphene material dispersed in the organic solvent, wherein the graphene dispersion liquid is prepared by virtue of the following steps: S1, providing a graphene water-based slurry which comprises the graphene material and water; S2, adding the organic solvent once or multiple times into the graphene water-based slurry in an accumulated manner to obtain a mixed slurry, wherein the organic solvent and the water can form an azeotropic system; S3, heating the mixed slurry till all moistures in the mixed slurry are removed, so as to obtain the graphene dispersion liquid. The invention further provides a method for preparing graphene material power by using the graphene dispersion liquid.

The invention discloses grain microwave and fluidization combined drying equipment, a drying method and application. The equipment comprises a tower body; and the tower body is provided with a buffer bin, a microwave section, a drying section and a cooling section in sequence from top to bottom. The drying section and the cooling section respectively include multiple fluidization plates staggered on upper and lower layers; one ends of the fluidization plates are fixedly connected with the tower body, and baffle plates are mounted at the other ends; and overflow channels are formed between the baffle plates and the tower body. An exhaust port of the cooling section communicates with a hot air intake ports of the drying section via a hot air fan and a heat exchanger; hot air exhausted by the cooling section is leaded into the drying section; and afterheat thereof is fully used to save the energy. The drying method comprises three steps of microwave preheating, fluidization drying and fluidization cooling. The drying equipment and the drying method use the microwave and fluidization combined drying, have the characteristics of high drying efficiency and uniform drying, can realize functions of insecticide and bacteriostasis, and can be used for drying such grains with good fluidity as paddy, wheat and corn.

The invention discloses a hot air dryer for textiles. The hot air dryer comprises a box, cloth and a connecting pipe; a feeding hole is formed in the upper part of the left side of the box; the left side of the feeding hole is provided with first compression rollers; a discharge hole is formed in the lower part of the right side of the box; the right side of the discharge hole is provided with second compression rollers; the inner wall of the box is provided with a drying body; a plurality of hot air sprayers are evenly distributed at intervals on the drying body; the hot air sprayers face different directions; moreover, the right side of the first compression rollers is provided with a first rotating roller; the right side of the first rotating roller is provided with a second rotating roller; a third rotating roller is arranged below the first rotating roller; the right side of the third rotating roller is provided with a fourth rotating roller. The hot air dryer disclosed by the invention is simple in structure, and is capable of performing multi-angle drying on the cloth which needs to be dried, so that the drying evenness of the cloth is ensured; the stroke of the cloth in a drying box is increased by the four sets of arranged rotating rollers, so that the drying time of the cloth is increased, and the drying effect is further improved.