62results about How to "High whiteness value" patented technology

The invention discloses a preparation method of nano calcium carbonate / titanium dioxide composite powder with a core-shell structure, belonging to the technical field of inorganic chemical synthesis. The preparation method for preparing the nano-level CaCO3 / TiO2 composite powder with the core-shell structure comprises the steps of leaching calcium carbonate by using a low-concentration titanium sulfate solution, then mixing leached calcium carbonate with a urea solution, and gradually dripping a high-concentration titanium sulfate solution or titanyl sulfate solution under heating conditions by using sodium dodecyl benzene sulfonate as a dispersing agent, thus preparing the nano CaCO3 / TiO2 composite powder with the core-shell structure. The preparation method is simple and feasible; an obtained product is relatively small and uniform in granularity and strong in ultraviolet absorption ability, shows the properties of titanium dioxide on the surface to a large extent, can be widely applied to the field of paper-making filler, coatings and the like, also can be used as an ultraviolet shielding material, and can be used for effectively reducing the cost of materials.

The invention provides a preparation method for durable antibacterial cellulose fibres. The preparation method comprises the following steps: S1, removing impurities from cellulose fibres in a physical mechanical mode to obtain impurity-removed fibres; S2, performing pre-treatment on the impurity-removed fibres, and dewatering to obtain dewatered fibres, wherein the pre-treatment comprises a cleaning process and / or a refining and bleaching process; S3, performing antibacterial finishing on the dewatered fibres with an antibacterial working liquid to obtain durable antibacterial cellulose fibres, wherein the antibacterial working liquid comprises an antibacterial agent, an alkaline auxiliary agent and a penetrating agent; the antibacterial agent is one or more of magnesium carbonate, coppernitrate, copper chloride, copper hydroxide, copper carbonate, basic cupric carbonate, zinc chloride, zinc sulphate, zinc hydroxide and zinc carbonate; and the alkaline auxiliary agent is one or moreof sodium hydroxide, potassium hydroxide, sodium bicarbonate, ammonium carbonate, ammonia water, sodium phosphate and sodium carbonate. The prepared cellulose fibres have a durable antibacterial effect; and the whiteness value of the fibres is high.

The present invention discloses a low-viscosity cotton pulp for producing cellulose ether ester and preparation method of said cotton pulp. Said invention uses cotton linters as raw material, and its preparation method includes the following steps: preparing material, digesting, washing material, beating, bleaching, removing sand, water-washing and pulp-making, etc.

The invention discloses a dyeing method of an environment-friendly wood veneer dyeing agent, and relates to a dyeing method of a wood veneer dyeing agent. The invention mainly solves the problems that an exiting dye is large in water solubility and high in leachability, dyed color is unstable, and an existing dyeing method is complex in process and high in equipment demand to cause environmental pollution and is not suitable for large-scale production. The dyeing method disclosed by the invention comprises the following steps of: first bleaching a veneer by means of characteristic of non-toxicity of CH3COOOH; and then, with the bleached veneer as a base material, dyeing the base material by two pigments, namely, iron oxide red and iron oxide yellow. According to the method disclosed by the invention, the dyed veneer is bright and full in color, high in water fastness of pigments, strong in hydrophobicity and extremely less in damage to wood. The dyeing method is low in equipment demand, easy to operate and strong in controllability, is suitable for large-scale industrial production, and has an extremely good actual application prospect.

The invention discloses calcined kaolin with high whiteness and high oil-absorbing value as well as a preparation method thereof. The calcined kaolin with high whiteness and high oil-absorbing value comprises calcined kaolin and white carbon black adsorbed on the surface of the calcined kaolin; and the white carbon black is 0.5 to 1.5 percent of the mass of the calcined kaolin. According to the calcined kaolin with high whiteness and high oil-absorbing value, the whiteness and the oil-absorbing value of the calcined kaolin are increased, and the calcined kaolin with high whiteness and high oil-absorbing value and capable of meeting the requirements of coating paper is produced.

The invention belongs to the technical field of the textile printing and dyeing, and particularly relates to a preparation method for pure cotton white fabric with a durable whiteness. The preparationmethod for the pure cotton white fabric with the durable whiteness comprises the following steps: singeing; desizing; mercerizing; whitening; and arranging and post-processing. The fabric is of a warp-weft complete-white yarn variety, and the breadth of a finished product is 53-61 inches. The finished product prepared by using the preparation method for the pure cotton white fabric with the durable whiteness has a high whiteness value, and the whiteness value of the fabric finished product after processing is 150 or more. After the pure cotton white fabric is washed in an AATCC 135 standard washing method, the whiteness is reduced by 2% or less after washing for 50 times. The soaping fastness is 4-5 degrees or higher, and the intensity of the fabric after and before whitening is not reduced. The method is simple in process, and convenient to operate.

The invention belongs to the technical field of cotton fabric after-finishing of the dyeing and finishing industry, and particularly relates to a preparation method of low-formaldehyde easy-care resin. The method comprises the steps that firstly, a formaldehyde solution reacts with first-batch urea, then, first-stage quantified distillation is performed, after distillation is completed, second-batch urea is added for a reaction, and then, second-stage quantified distillation is performed to obtain a dimethylol ethylene urea solution; deionized water and glyoxal are added into the solution fora reaction till the residual quantity of glyoxal in the solution is smaller than 0.8%, and cooling is performed; finally, alcohol substances are added, cooling is performed, ammoniac derivatives are added, the pH value is regulated to 5.0-7.0, and low-formaldehyde easy-care resin is obtained. According to the preparation method of the low-formaldehyde easy-care resin, the preparation method is simple, the cost is low, industrial production can be achieved, compared with common 2D resin, the prepared low-formaldehyde easy-care resin has the low strength loss and the high value of whiteness, andthe easy-care performance equivalent to the common 2D resin can be achieved.

The invention relates to a preparation method of a novel nanocrystallized sericite powder. The preparation method comprises the following steps: 1, preparing nanometer inorganic microspheres by a sol-gel technology; 2, activating ultrafine sericite powder; 3, adding the nanometer inorganic microspheres prepared in step 1 to an activated sericite slurry obtained in step 2, and performing dispersionat a temperature of 40-100 DEG C for 5-12 h until the sericite slurry is completely coated with the nanometer inorganic microspheres; and 4, filtering, washing and drying the coated nanometer sericite slurry to obtain the nanocrystallized sericite powder. The nanocrystallized sericite powder prepared in the invention has a high whiteness value (of above 90), excellent smooth feeling and an excellent skin fitting property, and can be well compounded with a polymeric material due to the small particle size and large specific surface area; and the preparation method has the advantages of simplepreparation process, easily available raw materials, and suitableness for large-scale production.

The invention relates to a method for preparing a light-colored conductive TiO2 whisker / superpolymer composite antistatic fiber and belongs to the technical field of functional textile materials. Themethod comprises the steps of taking a TiO2 whisker as matrix and a tin salt and an antimonium salt as raw materials, coating the surface of the TiO2 whisker with a layer of metal hydroxide by using aliquid-phase co-deposition method and transforming the metal hydroxide into a doped conductive metal oxide film under high-temperature treatment to obtain a light-colored conductive TiO2 whisker; fully mixing the prepared rod-like conductive TiO2 with a fiber-forming polymer and selecting corresponding spinning methods according to performance characteristics of different polymers; and finally obtaining a light-colored antistatic fiber. According to the method, the antistatic fiber is prepared by selecting the rod-like conductive whisker as a conductive filler; and due to the rod-like structure characteristic, the obtained fiber has a better corona discharge effect and excellent antistatic property besides the advantage of a whiteness value.

The invention discloses a process for discoloring camel hair fibers. The process comprises the following specific steps: pretreatment, oxidation treatment and reduction treatment. According to the mode, the process for discoloring camel hair fibers provided by the invention has the advantages that whiteness needed by dyeing can be met, strength needed for producing spun high-count-density yarns during post-production is achieved, and a test of discolored camel hair shows that the whiteness value of the camel hair fibers is improved by 296%, and the post- production dyeing requirements can be met. Meanwhile, the strength loss is only 6.5%, and smooth operation of post-combing slivering and high-count-density spinning can be ensured.

The invention relates to nutritious and colorful fish-flesh noodles containing cordyceps militaris and vegetables and a processing method of the nutritious and colorful fish-flesh noodles. The nutritious and colorful fish-flesh noodles comprise minced fish flesh, starch, flour, the vegetables, vital gluten, salt, egg white, cooking wine, the cordyceps militaris, granulated sugar and ginger. The processing method includes: collecting the flesh of silver carp, cleaning, mincing, adding the salt, the starch and the vital gluten, mincing, adding the minced fish flesh, the minced vegetables and ginger, the cordyceps militaris powder, the egg white, the cooking wine, the granulated sugar into a flour noodle making machine for kneading, and discharging the noodles to obtain the nutritious and colorful fish-flesh noodles. The processing method has the advantages that the method is easy to operate, no water needs to be added during noodle production, the noodles can be formed easily, and the produced noodles are comprehensive in nutrition, delicious and attractive in color and has a nourishing effect.

The invention discloses a method for processing a longsnout catfish tailing protein sausage. The method comprises the following steps that the tailings obtained by slicing longsnout catfishes are subjected to bone removal, rinsing and filtration to remove fish skin and broken bones so as to obtain minced fish meat, the fish proteins of the minced fish meat are recovered by an isoelectric retrogradation recombinant technology, and the recovered fish proteins are processed into the fish protein sausage by a gel color and tissue improving technology. The recovered fish protein has high content of gel protein, low fat content, high ash content, high nutritive value, high breaking strength of gel, indentation and strength of gel and perfect processing property; and moreover, the method is positively meaningful for promoting the application research on the isoelectric retrogradation recombinant technology of protein, realizing the diversified application of tailings of iced fish products, improving the quality of fish protein gel products and guiding processers and exporters of iced longsnout catfish fillets to walk on a road of sound development.

The invention relates to the technical field of ink, and discloses environment-friendly acrylate modified waterborne polyurethane printing ink and a preparation method thereof. The printing ink comprises the following components in parts by weight: acrylate modified waterborne polyurethane, modified nano titanium dioxide, a defoaming agent, a dispersing agent and water. The preparation method comprises the following steps: adding the acrylate modified waterborne polyurethane, the defoaming agent and the deionized water into a stirring kettle, conducting stirring for 30-50 minutes at the stirring speed of 400-500 r / min, adding the modified nano titanium dioxide and the dispersing agent, and conducting stirring for 20-30 minutes at the stirring speed of 600-800 r / min, thereby obtaining the printing ink. The waterborne polyurethane printing ink prepared by the invention has the advantages of environmental protection, high solid content and excellent water resistance; and besides, the nanotitanium dioxide pigment added into the ink can be uniformly dispersed in a water-based medium, and an acrylate modified water-based polyurethane binder cannot be subjected to photocatalytic degradation, so that the service life of the ink is prolonged.

The invention discloses an archaized brick with a low sintering temperature, low radioactivity and a ultrawhite whole body, a green body and a preparation method of the green body. The archaized brickcomprises a green body, ground glaze and cover glaze. On the basis of a situation that a traditional archaized brick production technology is free from significant changes, the key point is that production raw materials are selected, the formula composition of the green body is regulated and optimized, a sintering technology is regulated and optimized, so that the prepared archaized brick producthas the characteristics of low sintering temperature, low radioactivity, high whiteness and good decoration effect and the like. Meanwhile, the technology has higher universality and is easy in popularization in industries. The invention also relates to a green body of the archaized brick with the low sintering temperature, the low radioactivity and the ultrawhite whole body, and a preparation method of the green body.

The invention discloses a waterproof fluorescent whitening agent for fabric. The waterproof fluorescent whitening agent is prepared from 96%-98% of compound-type fluorescent whitening agent, 0.03%-0.3% of acid blue, 0.15%-0.3% of polyethylene glycol and the balance anhydrous sodium sulphate in a physical-mixing mode and an evenly-mixed mode. According to the waterproof fluorescent whitening agent for fiber fabric, as two fluorescent whitening agents are compounded, the whiteness improving force and the acid resistance of the waterproof fluorescent whitening agent for the fiber fabric are effectively improved, and the fiber fabric treated by the waterproof fluorescent whitening agent is high in whiteness, good in color fastness and excellent in overall performance.

The present invention discloses special powder for steamed vermicelli rolls and a preparation method thereof, and belongs to the technical field of food processing. The special powder for the steamedvermicelli rolls has a protein content of more than or equal to 5% and an amylose content of more than or equal to 22% on a dry basis. The special powder for the steamed vermicelli rolls comprises 60-90 parts of rice flour after enzymatic hydrolysis by protease, 10-40 parts of starch and 0.3-5 parts of an emulsifier. The steamed vermicelli rolls prepared by the special powder for the steamed vermicelli rolls is superior to the commercially available steamed vermicelli roll products by a traditional manufacture method. A used modifier can improve color and luster of the steamed vermicelli rolls. During use of the special powder for the steamed vermicelli rolls, only an appropriate amount of water is added, the special powder for the steamed vermicelli rolls is convenient to use, and the method for preparing the steamed vermicelli rolls by the special powder for the steamed vermicelli rolls is simple and quick, saves processes of soaking and grinding in a traditional preparation technology, and is high in production efficiency, adapted to needs of industrial production and adapted to a wide range of market circulation.

The invention discloses a method for enhancing whiteness of sulphoaluminate clinker and belongs to the technical field of cement clinkers. The method for enhancing the whiteness of the sulphoaluminateclinker comprises raw material quality control, raw material preparation and clinker calcining. Raw materials comprise bauxite, gypsum, limestone, high magnesium limestone, dolomite and barite; raw material blending satisfies requirements that the basicity coefficient Cm of the clinker obtained after the raw materials are calcined is 0.92-1.0, and the sulfur aluminum ratio P of the clinker obtained after the raw materials are calcined is less than or equal to 3.82; the content of MgO in the clinker is 1-2.5%, the content of BaSO4 in the clinker is more than 0.1% and less than 2%, the contentof free gypsum in the clinker is 0-1%, and the content of Fe2O3 in the clinker is less than 1.2%; the raw materials are pulverized after being blended; the fineness of the raw materials is controlledin such a way that residues on a 0.08 mm square hole sieve are less than 12%; and then the raw materials enter a kiln to calcine the clinker; under conditions that a decomposing furnace temperature is870+ / -10 degrees centigrade and a burning zone temperature is 1280-1340 degrees centigrade, the clinker is calcined; and therefore, the white sulphoaluminate clinker with whiteness of higher than orequal to 80 can be stably obtained.

The invention discloses a production method for improving soybean isolate protein whiteness value and relates to the field of soybean industry chain deep processing. Modernized food processing technology combining low-temperature extraction technology, water-washing technology, citric acid precipitation technology, metal salt ion substitution technology, combined enzyme treatment technology and high-pressure spray drying is adopted to improve soybean isolate protein processing modes, and the problem that soybean isolate protein product powder is dark in color and water soluble color due to current conventional processing modes at home and abroad is solved through steps of extraction, acid precipitation, neutralization, enzymolysis, sterilization, flashing, spray drying and packaging; by optimizing the above key parameters, a process which is simple, feasible and easy to implement is adopted to improve the whiteness value of soybean isolate protein, and the production method is of important significance.

The invention belongs to the technical field of textile printing and particularly relates to a digital printing process of an artificial cellulose fiber fabric. The digital printing process comprisesthe following steps of preparing of a digital printing pretreatment agent, padding of the pretreatment agent, digital printing spray printing, steaming, washing and drying. The digital printing pretreatment agent comprises, by weight, 1-3 parts of a thickener, 7-25 parts of urea, 0.5-2 parts of printing alkali, 0.5-2 parts of an antioxidant and the balance water. According to the process, the antioxidant is added to the pretreatment agent, so that the problem of yellowing of the fabric caused by oxidation in the drying or steaming process under the alkaline condition of the phenolic substancescan be effectively prevented. Compared with a digital printing process in the prior art, the whiteness of the fabric produced by the digital printing process of the artificial cellulose fiber fabricis remarkably improved, the fabric printing gradation is clear, the stereoscopic impression is remarkable, and the product color is bright. The digital printing process has the beneficial effects of simple process, easy operation and convenient product quality control.

The invention discloses a preparation method of nano calcium carbonate / titanium dioxide composite powder with a core-shell structure, belonging to the technical field of inorganic chemical synthesis. The preparation method for preparing the nano-level CaCO3 / TiO2 composite powder with the core-shell structure comprises the steps of leaching calcium carbonate by using a low-concentration titanium sulfate solution, then mixing leached calcium carbonate with a urea solution, and gradually dripping a high-concentration titanium sulfate solution or titanyl sulfate solution under heating conditions by using sodium dodecyl benzene sulfonate as a dispersing agent, thus preparing the nano CaCO3 / TiO2 composite powder with the core-shell structure. The preparation method is simple and feasible; an obtained product is relatively small and uniform in granularity and strong in ultraviolet absorption ability, shows the properties of titanium dioxide on the surface to a large extent, can be widely applied to the field of paper-making filler, coatings and the like, also can be used as an ultraviolet shielding material, and can be used for effectively reducing the cost of materials.

The invention provides a washing method of a light-color seriously-blotted public textile. The washing method comprises the steps of prewashing, namely decomposing dirt on the seriously-blotted public textile by utilizing bi-isocyano amidine perborate as a main agent, standing under the condition of keeping the boiling point, and overturning the seriously-blotted public textile; cleaning, namely decomposing non-pigment depositions on the light-color seriously-blotted public textile by utilizing bi-isocyano amidine perborate as the main agent; decoloring, namely removing pigment substances on the light-color seriously-blotted public textile by utilizing sodium percarbonate as a main agent under the condition of keeping the boiling point; performing enhanced washing, namely performing a washing process that cleaning and decoloring are performed at the same time, and performing washing and blanching in one bath by utilizing bi-isocyano amidine perborate and sodium percarbonate as main agents. The washing method provided by the invention has the beneficial effects of obviously improving the washing quality, achieving the whiteness as high as 75-85, and basically solving the problem of washing quality of the light-color seriously-blotted public textile.

Processes for making surface-modified layered double hydroxides (LDHs) are disclosed, as well as surface-modified LDHs, and their uses in composite materials. The surface-modified LDHs of the invention are more hydrophobic than their unmodified analogues, which allows the surface-modified LDHs to be incorporated in a wide variety of materials, wherein the interesting functionality of LDHs may be exploited.

The invention relates to the technical field of printing inks, and discloses an environmentally friendly acrylate modified water-based polyurethane printing ink and a preparation method thereof. Including the following components by weight: acrylate-modified water-based polyurethane, modified nano-titanium dioxide, defoamer, dispersant, water; first add acrylate-modified water-based polyurethane, defoamer and deionized water to stir Stir in the kettle for 30-50min at a stirring rate of 400-500r / min, then add modified nano-titanium dioxide and a dispersant, and stir for 20-30min at a stirring rate of 600-800r / min. The water-based ink prepared by the present invention has the advantages of environmental protection, high solid content, and excellent water resistance; in addition, the nano-titanium dioxide pigment added in the ink of the present invention can be uniformly dispersed in the aqueous medium, and will not photocatalytically degrade the acrylate modified Water-based polyurethane binder to prolong the service life of the ink.

The invention relates to a snowfield camouflage net white microporous coating which comprises a flame-retardant layer surface white coating, a flame-retardant coating, a low-emissivity base material and a low-emissivity surface white microporous camouflage coating which are sequentially stacked from bottom to top. The snowfield camouflage net white microporous coating is prepared by coating a white foaming coating on a low-emissivity base material, and the back surface is coated with the flame-retardant coating and the white camouflage coating on the surface of the flame-retardant layer to obtain the snowfield camouflage net white microporous coating. The probability that equipment is found by ultraviolet, visible light and infrared detection equipment in a snowfield background can be effectively reduced by the coating and the survival opportunity of the equipment in the snowfield background is improved. In addition, the invention also relates to a preparation method of the snowfield camouflage net white microporous coating.

The invention discloses a technology for renovating and washing light white clothes and the application of the technology, and relates to the application of the technology for renovating and washing the clothes in the fields of industrial and public mechanisms, medical treatment and the like. The invention aims to renovate the light white clothes; and yellowed clothes can be renovated by the technology, the whiteness of the yellowed clothes can be improved, and pigment sedimentation on the light white clothes can be washed away. The technology comprises the following steps of: performing pretreatment before washing, namely decomposing dirt on the clothes; cleaning, namely cleaning dirty substances, pigments and the like on the clothes; decoloring, namely converting the pigment substances on the clothes into non-colored compounds; and performing a correct washing technical route of cleaning and decoloring, so that the renovated light white clothes can keep high whiteness and high capillary effect during future washing. During application, the technology is convenient and easy to master, the consumption is reduced, the economic and social benefits are remarkable, and the technology has been widely popularized and used in the industries; and a 'Scientific and Technical Effect Certificate in Tianjin' which is issued by the science and technology committee in Tianjin is earned.

The invention relates to the technical field of meat processing, in particular to minced chicken and a preparation method thereof. The minced chicken meat comprises 200-250 parts of chicken meat; 60-90 parts of starch; 6-9 parts of a sweet corn cob extract; 3-8 parts of nostoc commune powder; 2-3 parts of sodium tripolyphosphate; and 400-500 parts of water. The preparation method comprises the following steps: mixing the sodium tripolyphosphate, the sweet corncob extracting solution, 100-200 parts by mass of an ice-water mixture and nostoc commune powder to obtain a mixed auxiliary material; weighing and mincing the raw chicken, adding auxiliary materials, uniformly stirring the chicken meat paste and the mixed auxiliary materials, wherein the center temperature of the meat paste is lower than 10 DEG C in the stirring process, thus preparing minced raw chicken; and adding the starch and the residual water into the minced raw chicken, stirring the mixture until the minced raw chicken is uniformly mixed, and cooking and shaping the mixture to obtain the minced chicken. The minced chicken has the advantages of improving the water-retaining property of the chicken meat paste and reducing the cooking loss rate on the premise of not influencing the color and luster of the minced chicken.

The invention discloses a preparation method of a coated conductive whisker / composite antistatic coating. The preparation method comprises the following steps: preparing a rutile type TiO2 crude product, calcining the rutile type TiO2 whisker crude product, pickling the rutile type TiO2 whisker crude product and then calcining the rutile type TiO2 whisker crude product, preparing a reaction solution, controlling the pH value for treatment, preparing a light-color coated conductive whisker, and preparing a light-color composite conductive coating. According to the preparation method of the coated conductive whisker / composite antistatic coating provided by the invention, microwaves are selected as a heat source in the preparation process, a light-color conductive material based on rutile TiO2 whiskers is prepared in a solid-phase environment, and the light-color antistatic coating is prepared by taking the light-color conductive material as a conductive base material. In addition to the advantage of high whiteness value, due to the physical structure characteristic of a rod shape, bridging and a conductive loop are easier to form, and the antistatic performance of the prepared finished product is ensured.

The invention relates to a method for preparing white ceramic by the use of natural zeolite. The method for preparing white ceramic by the use of natural zeolite is characterized by comprising the following steps of: 1) crushing the natural zeolite, and grinding to 100 meshes to obtain a zeolite powder; 2) preparing a modified zeolite powder by adopting one of the following two method: (1) mixingthe zeolite powder, sodium chloride, sodium hydroxide and water according to the mass ratio of 10: (0.6-10): (2-10): 30-45, heating and stirring for 12 hours, staying for 48 hours, washing by the useof water, and drying to obtain the modified zeolite powder; (2) mixing the zeolite powder, a waste alkali liquor in caustic soda industry and water according to the mass ratio of (10-15): (6-12): 45,heating and stirring for 12 hours, staying for 48 hours, washing by the use of water, and drying to obtain the modified zeolite powder; 3) mixing the zeolite powder and the modified zeolite powder with the modified zeolite powder being 10-90 wt% of the zeolite powder and the modified zeolite powder, tabletting for moulding, and sintering at high temperature to obtain the white ceramic. By the adoption of the method, the white ceramic has high R457 white value, high acid fastness, high alkali fastness and high Shore hardness.