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267results about How to "Fast drying" patented technology

Film-coating fresh-keeping fruit wax for fruits and vegetables and preparation method thereof

The invention relates to a method for preparing a film-coating fresh-keeping fruit wax for fruits and vegetables, which mixes red lac, morpholine, propanediol and ammonia according to weight ratio, and comprises the following steps: emulsifying the mixture for 20 to 40 minutes at an emulsifying temperature of between 113 and 117 DEG C, and stirring the mixture at a speed of between 750 and 1,050 revolutions per minute; when the temperature of the solution is reduced to 60 DEG C, adding natamycin, sec-butylamine and thiabendazole L according to the following proportions; and after dispersing the mixture, reducing the temperature to 30 DEG C, taking the mixture out, and performing high-pressure homogenization on the mixture to obtain the film-coating fresh-keeping fruit wax for fruits and vegetables. The fresh-keeping fruit wax is a dark brown semi-transparent water-soluble emulsion, cannot be hardened after coating, is easy to fall off, has a quick drying speed and moderate viscosity, can perform fruit waxing through a full automatic wax-polishing machine, is bright in color and beautiful, and has lasting brightness. The concentration of the natamycin used by the fresh-keeping fruitwax has only 10<-6> order of magnitude and is in accordance with the standard of the maximum residual quantity in food stated by the national 'use sanitation standard of food additives'; therefore, the film-coating fresh-keeping fruit wax for fruits and vegetables is a safe and environment-friendly fresh-keeping material.
Owner:天津市赛奥农产品保鲜科技有限公司 +1

Low-temperature quick-drying solvent-free epoxy coating for drinking water tank and preparation method thereof

The invention relates to a low-temperature quick-drying solvent-free epoxy coating for a drinking water tank and a preparation method thereof, wherein epoxy resin, a reactive diluent, a dispersant, a silane coupling agent, a thixotropic additive, titanium dioxide, talcum powder, a defoamer, a modified aromatic amine curing agent and a catalyst are used for constituting an A component and a B component; when in use, the A component and the B component are mixed according to the mixing weight ratio of 7.5/1-8.5/1, the mixing viscosity under the low-temperature condition of 10-15 DEG C is 3000-5000mPa.s, the operable time is 1-2 hours, the semi-hardening time is 6-8 hours, and the hardening time is 20-24 hours. The epoxy coating has excellent coating constructability and drying property of acoating film. The epoxy coating is solvent-free and non-toxic, has low viscosity under the low-temperature condition of 10 DEG C, and ensures normal construction can be carried out without taking heating and thermal insulation measures; simultaneously, the drying speed of the coating film is fast, and the requirement of low-temperature construction process in winter can be completely met. The coating is particularly applicable to drinking water tanks of naval ships, as well as coating protection of the inner walls of large storage tanks in the food industry under the low-temperature condition.
Owner:COSCO KANSAI PAINT & CHEM TIANJIN +2

White latex adhesive agent for packaging paper product and method of producing the same

The invention provides an emulsion adhesive for paper-product packaging and a preparation method thereof. The method comprises: Polyvinyl alcohol, instant starch, polyvinyl acetate emulsion, water and kaolin, swell soil, titanium dioxide pigment, calcium carbonate, rubberlith and sodium hexametahposphate are used as main materials; the solid polyvinyl alcohol is dissolved with the water, later dispersed uniformly with the polyvinyl acetate emulsion, alcohol ester and an antiseptic and grinded into a glue liquid of 160 to 200 meshes; then after the kaolin, the swell soil, the titanium dioxide pigment, the calcium carbonate, the rubberlith, the sodium hexametahposphate and the instant starch are uniformly mixed, water is added for stirring the mixture into a uniformly mixed material; the glue liquid and the uniformly mixed material are dispersed together; moreover, a titanium ester coupling agent is added for obtaining the emulsion adhesive after being uniformly mixed. The emulsion adhesive is friendly to the environment, has fast drying speed, high intensity and low cost, is especially suitable to the sticking operation of high-grade paper boxes, has simple preparation technique and considerable economic benefit as well as has excellent market prospect.
Owner:YANCHENG YANLONG PACKAGING PRINTING FACTORY

Preparation method of waterborne alkyd enamel

InactiveCN104497819AFast dryingHigh glossMagnetic paintsAnti-corrosive paintsSkin agentSolvent
The invention discloses a preparation method of waterborne alkyd enamel. The preparation method comprises the following components in percentage by mass: 45%-55% of waterborne alkyd resin, 10%-15% of rutile type titanium dioxide, 0.3%-1% of carbon black, 10%-15% of precipitated barium sulphate, 0.2%-0.5% of a waterborne dispersing agent, 0.1%-0.2% of a waterborne antifoaming agent, 0.1%-0.2% of a waterborne foam inhibitor, 1%-2% of hydrated magnesium silicate, 0.8%-1.2% of waterborne drier, 0.2%-0.4% of a waterborne anti-skinning agent, 0.5%-1% of a water-based thickener, 2%-4% of a neutralizer, 2%-4% of a hydrotropy agent, 2%-4% of a coalescing agent, 0.1%-0.2% of a waterborne flatting agent and 8%-9.6% of deionized water. The method comprises the following technological steps: stirring the waterborne alkyd resin evenly, and testing and adjusting the pH value; diluting the foam inhibitor with the deionized water, then adding to a production cylinder, stirring, and adding the rutile type titanium dioxide and the like, dispersing and then grinding; adding a compound drier and the like, and stirring; adjusting the viscosity with the deionized water; and adjusting the pH value of the product with the neutralizer. The waterborne alkyd enamel has the advantages of being high in drying rate, high in glossiness, excellent in weather fastness, excellent in salt water resistance, and free of a blistering or rusting phenomenon after being soaked in a 3% sodium chloride solution for 480 hours.
Owner:成都拜迪新材料有限公司

Fluorescent transparent coating capable of realizing full colors, preparation method and luminous device using fluorescent transparent coating

InactiveCN102702934AFast dryingWide range of substratesInksPolyurea/polyurethane coatingsQuantum dotUV curing
The invention discloses a fluorescent transparent coating capable of realizing full colors. The fluorescent transparent coating comprises quantum dots and ultraviolet (UV) curing transparent ink. A method for preparing the fluorescent transparent coating comprises the following steps of: adding the quantum dots and the UV curing transparent ink into a charging bucket, and stirring by using a dispersion machine for 30 to 120 minutes; adding zirconium oxide beads of which the grain diameters are 0.2 millimeter, and grinding for 3 to 8 hours; printing the ground UV curing transparent ink containing the quantum dots on a base material by using an inkjet printer to form a target image; and irradiating by using ultraviolet light while printing the target image or after the target image is printed. According to the fluorescent transparent coating, the quantum dots which can emit fluorescent light of different wavelengths and the UV curing transparent ink are combined to realize full colors, and the image is printed by using the UV curing transparent ink through the inkjet printer; and the method is simple, high in efficiency and flexible and can be used for large-area inkjet, and the coating is high in curing speed and environment-friendly.
Owner:GUANGDONG POLY OPTOELECTRONICS

Method and device for drying easily-dried wood

The invention discloses a method and device for drying easily-dried wood. The method for drying the easily-dried wood comprises the steps of wood accumulating, temperature rise preheating, temperature rise drying, constant-temperature drying, temperature reducing drying and cooling drawing. The device for drying the easily-dried wood comprises a drying kiln body, and a drying kiln body gate is arranged on the drying kiln body. The device for drying the easily-dried wood further comprises a ventilation and dehumidification system, a heating system, a detection and control system and a saturated steam generator. A wood accumulating area is arranged in the drying kiln body. An air inlet capable of being opened or closed is formed in the drying kiln body. The ventilation and dehumidification system, the heating system and the saturated steam generator are all communicated with the wood accumulating area. The detection and control system is used for detecting drying parameters in the drying kiln body and electrically connected with the ventilation and dehumidification system, the heating system, the saturated steam generator and the air inlet. The method and device have the beneficial effects of being high in drying speed, low in energy consumption, small in pollution to environment and the like.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Degradable adhesive for polylactic acid cigarette tows and preparation method thereof

The invention provide degradable adhesive for polylactic acid cigarette tows, wherein the water-based polyurethane adhesive can be prepared through three stages, namely prepolymerization, neutralization and salt formation, and dispersion and chain-extension, and can be biologically degraded. The adhesive preparation method comprises the following steps: (1) prepolymerization, in which, 60 to 75 percent of hydroxyl monomer, 2 to 10 percent of hydrophilic monomer and 15 to 25 percent of isocyanate monomer react through gradual polymerization, 1 to 5 percent of solvent is added into the mixture according to the viscosity of a reaction system so as to generate polyurethane prepolymer; (2) 2 to 7 percent of neutralizer is added into the polyurethane prepolymer for neutralization and salt formation, and water which is 1 to 6 times of the solvent is added into the mixture for dispersion of the prepolymer; and (3) 1 to 6 percent of a chain extender is added into the mixture to form the waterborne polyurethane adhesive. The synthesized adhesive is applicable to the adhering of polylactic acid cigarette tows, and can produce the polylactic acid filter tip bar with biological degradation, environmental protection, non toxicity and excellent adhering performance.
Owner:马鞍山同杰良生物材料有限公司

Low-gram-weight digital ink jet transfer printing base paper and production method thereof

ActiveCN110130142AProper adsorptionFast dryingWater-repelling agents additionPaper coatingGramCrosslinked chitosan
The invention provides low-gram-weight digital ink jet transfer printing base paper and a production method thereof, and discloses the low-gram-weight digital ink jet transfer printing base paper which comprises base paper and a thermal transfer coating, wherein production raw materials comprise bleached chemical hardwood pulp, bleached mechanical bamboo pulp, precipitated calcium carbonate, glyoxylic acid modified polyacrylamide, an internal sizing agent and other functional additives; the coating comprises micron silica, nano calcium carbonate, crosslinked chitosan and an alkyl ketene dimer(AKD), and the base paper has a certain weight of 25-40g/m<2>. According to the invention, the crosslinked chitosan and the alkyl ketene dimer are matched with micro-nano inorganic pigments to be used, and the micro-coating technology is adopted to produce the low-gram-weight heat transfer printing base paper, by use of the micro-nano coating with a high specific surface area, absorption of high ink jet amount of ink can be achieved by a small coating amount, and the situation that the ink cannot be transferred to a fabric after penetrating into the base paper can be prevented, so that the ultra-low-gram-weight heat transfer printing base paper has the advantages of high drying rate, high transfer rate, uniform transfer printing, economy, environmental protection and the like.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Preparation method for high-resistance inorganic-organic composite modified acrylic epoxy ester resin

The invention belongs to the field of water-based paints, and discloses a high-resistance inorganic-organic composite modified acrylic epoxy ester resin. The high-resistance inorganic-organic composite modified acrylic epoxy ester resin is synthesised from the following raw materials in parts by weight: 30-70 parts of epoxy ester, 5-50 parts of acrylic monomers and 5-25 parts of silica gel, wherein the epoxy ester is prepared by carrying out a catalytic reaction on 40-70 parts of epoxy resin and 20-60 parts of unsaturated fatty acid; the acrylic monomers comprise 20-60 parts of vinyl monomers and 40-70 parts of acrylic acid monomers; the silica gel is prepared by reacting 10-50 parts of an organic silicon intermediate, 5-50 parts of a silane coupling agent, 20-70 parts of a cosolvent, 0.2-5 parts of a pH value regulator and 5-15 parts of water; the nanoscale silica gel is capable of improving the resistance and dryness of a paint film; secondary crosslinking is formed along with the changes of a pH value, thus increasing the crosslinking density after film formation; the structure taking the nanoscale silica gel as a core and the organic resin as a shell is capable of improving the stability of silicon hydroxyl; the water-based epoxy ester resin is capable of reducing a VOC content.
Owner:BEIJING JINHWEILI APPLIED CHEM PROD

Preparation method for passion fruit-momordica grosvenori substitutional tea

The invention discloses a preparation method for passion fruit substitutional tea. The preparation method comprises the following steps: selecting fruits, soaking the cleaned passion fruits in Na2CO3 solution with a concentration of 1-3%, and then taking out and washing with water to obtain dewaxed passion fruits; drilling a hole at the top pedicel and the corresponding bottom navel of each dewaxed passion fruit respectively to obtain drilled passion fruits; drying the drilled passion fruits with hot air; breaking the passion fruits into blocks with sizes of 8-10cm; drying with microwave to a water content of below 10%; breaking into grains to obtain the passion fruit substitutional tea. The invention also discloses a preparation method for passion fruit-momordica grosvenori substitutional tea, wherein the passion fruit-momordica grosvenori substitutional tea is obtained by mixing according to a weight ratio of (5 to 10): (0 to 5) of the passion fruit substitutional tea to momordica grosvenori grains dried by vacuum microwave and then subpackaging. The hot-air drying for the whole passion fruits in the preparation method disclosed by the invention reserves the fragrance of passion fruit pulp and active ingredients in peels, and the passion fruit-momordica grosvenori substitutional tea is capable of reducing the acidity of the passion fruit substitutional tea and has a fresh, sweet and delicious flavour of momordica grosvenori.
Owner:GUANGXI UNIV
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