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40results about How to "Fix fading" patented technology

Wood-grain-imitated co-extruded plastic-wood profile and preparation method thereof

The invention provides a wood-grain-imitated co-extruded plastic-wood profile. The wood-grain-imitated co-extruded plastic-wood profile comprises a surface layer and a base material, wherein the adding amounts of plastic and a functional aid in the surface layer are more than the adding amounts of the plastic and the functional aid in the base material, so that the cost is favorable to be reduced; the surface layer is subjected to color adjustment by virtue of a main color and a secondary color (a third color can be increased according to requirements), so that the effects of the color shade and the layer variability of the surface layer can be well achieved. The invention further provides a preparation method of the wood-grain-imitated co-extruded plastic-wood profile. The preparation method comprises the processes of granulation, synchronous extrusion and surface treatment. According to the preparation method, surface layer particles including main color particles and secondary color particles are respectively granulated and are uniformly mixed for co-extruding the surface layer, and the surface layer is subjected to surface treatment in a 'hot plate and cold roller' manner. The co-extruded plastic-wood profile prepared by virtue of the preparation method is low in cost, excellent in water resistance, corrosion resistance and aging resistance and durable, further has the grains, color gradation and texture of imitated and natural wood, so that the user experience is improved.
Owner:湖南格林美资源利用有限公司 +2

Coloring process of whole body of fiber cement external wall panel

The invention discloses a coloring process of the whole body of a fiber cement external wall panel, comprising the following steps of: (1) doping blended inorganic pigments into the raw material powder for producing the fiber cement external wall panel, enabling the blended inorganic pigments to be absorbed on the surfaces of other granules through high-speed stirring to achieve the purpose of sufficient dispersion, and then stirring by adding water; (2) carrying out kneading and mixing processes on raw materials, and then enabling the raw materials to enter an extruder for extrusion molding;(3) carrying out steam ordinary-pressure curing and autoclave curing on a product in a still kettle to accelerate and enhance the strength of the product; and (4) finally processing the surface of the product, and spraying colorless clearwater paint. The invention enables the whole body of the fiber cement external wall panel to have one color, fresh and lovely luster and elegant appearance and endure high temperature without color fading by adding the inorganic pigments to the fiber cement external wall panel and adopting a customized production and curing process, thereby solving the problems of easy ageing, color fading and stripping of a surface coating of the traditional external wall panel colored by using paint.
Owner:BEIJING NEW BUILDING MATERIALS PLC +1

Thermal-aging-resistant color-stable color master batch for nylon and preparation method and application of color master batch

ActiveCN112029269AImprove heat-resistant color stabilityFix fadingPolyvinyl alcoholPyridine
The invention discloses a thermal-aging-resistant color-stable color master batch for nylon and preparation method and application of color master batch in preparation of nylon products through high-temperature injection molding. The color master batch is prepared from the following raw materials in percentage by weight: 60-85% of carrier resin, 10-30% of modified toner, 2-7% of a dispersing agentand 1-3% of an antioxidant, the preparation method of the modified toner comprises the following steps: adding polyvinyl alcohol and a solvent into a reaction container at room temperature, stirringuntil the polyvinyl alcohol and the solvent are completely dissolved, adding an acid-binding agent and a pigment, uniformly stirring and mixing, dropwise adding acyl chloride pretreated by an ice-water bath, carrying out reflux condensation reaction for 2-4 hours, collecting an obtained solid product, washing, and carrying out vacuum drying to obtain the modified toner, wherein the solvent is dichloromethane and/or dimethyl sulfoxide, the acid-binding agent is pyridine and/or triethylamine, and a 254 red pigment is used. The preparation method comprises the following steps: uniformly mixing the carrier resin, the modified toner, the dispersing agent and the antioxidant according to a ratio, banburying, melting, blending, extruding, bracing, cooling with water, air-drying and dicing to obtain the color master batch.
Owner:中广核俊尔(浙江)新材料有限公司 +1

Spraying process for mobile phone shells

The invention discloses a spraying process for mobile phone shells. The spraying process includes steps of a, loading shells which are subjected to injection molding by the aid of molds, and carryingout polishing treatment on defective products; b, carrying out electrostatic dust removal on the surfaces of products, then blowing and sweeping the surfaces of the products and carrying out electrostatic dust removal again; c, coating primer paint, to be more specific, carrying out primer paint spraying treatment on the products in spraying rooms by the aid of spraying guns, then drying the products and carrying out illumination treatment; d, coating UV (ultraviolet) finish paint, and to be more specific, carrying out UV paint spraying treatment on the products coated with the primer paint bythe aid of the spraying guns; e, carrying out leveling treatment on the products with the sprayed UV paint by the aid of conveyor lines; f, carrying out UV curing, and to be more specific, carrying out ultraviolet radiation on the mobile phone shells by the aid of UV lamps after the leveling treatment is carried out on the mobile phone shells; g, cooling the cured mobile phone shells by means ofelectrostatic air blast; h, carrying out inspection and warehousing. The spraying process has the advantages that the problems of color fading and color difference can be effectively solved by the aidof the mobile phone shells produced by the aid of the spraying process; the production efficiency can be improved, the production cost can be reduced, and environmental pollution can be abated.
Owner:重庆市量劲科技有限公司

Preparation process of multi-layer composite automobile leather

The invention discloses a preparation process of multi-layer composite automobile leather. The automobile leather sequentially comprises a sunscreen coating layer, a leather layer, a non-woven fabriclayer, a non-glue cotton layer and a knitted fabric layer from outside to inside. The preparation process of the automobile leather comprises the following steps: step 1, depilating, degreasing, softening and pickling dry leather or salt leather to obtain leather collagen fibers, tanning and dyeing the leather collagen fibers, washing the leather collagen fibers with water, taking the leather collagen fibers out of a drum, and carrying out stacking and drying in vacuum to obtain leather; step 2, uniformly spraying a sun-screening emulsion on the surface of the leather prepared in the step 1 ina spraying manner, and then performing heating and shaping to obtain leather containing a sun-screening coating layer; and step 3, sequentially stacking the leather containing a sunscreen coating layer prepared in the step 2, non-woven fabric, non-glue cotton and knitted fabric, and performing pressing, sewing and trimming to obtain the multi-layer composite automobile leather. The sunscreen emulsion is uniformly sprayed on the surface of the leather in a spraying manner, so that the protective property and the sunscreen property of the leather are improved, and the ageing resistance of the automobile leather is improved.
Owner:YANGZHOU DERWINS PLASTICS TECH

PVC overlaid plywood and manufacturing method thereof

The invention discloses PVC overlaid plywood and a manufacturing method thereof and belongs to the technical field of plywood. The PVC overlaid plywood comprises a medium-high density fiber board, a PVC membrane and UV paint, wherein the PVC membrane is arranged on the surface of the medium-high density fiber board; and the UV paint is arranged on the surface of the PVC membrane. The UV paint is sprayed to the PVC membrane and is subjected to UV curing to form a layer of film which is high in hardness, good in abrasion resistance and high in transparency, and the effects of scraping resistance, scraping prevention, heat resistance and durability are achieved. Meanwhile, the curved UV paint is stable in color and luster, the mirror flat effect is better, the paint film is full and free of orange peel phenomenon, and the color and luster uniformity of the surface of the film is effectively increased. The surface of the plywood is wrapped with the PVC membrane easily, conveniently and rapidly, the UV paint coating efficiency is high, the coating cost is low, and coating is environmentally friendly. The problems that wrapping of the plywood wastes time and labor, the poor phenomena like bubbles and delaminating are easily generated, the features of high hardness, scraping prevention, scraping resistance and heat resistance are not achieved, and durability in transportation and useis poor are effectively solved.
Owner:张梦琪

Formula and extraction process of composite natural purple pigment

InactiveCN110117423AImprove securityEasy to prepareNatural dyesLimoniumClitoria ternatea
The invention discloses a formula of a composite natural purple pigment. The composite natural purple pigment is prepared from 250 g of beetroot, 25 g of clitoria ternatea flowers, 25 g of peeled lemons and 1,500 g of water. An extraction process comprises the following steps that the beetroot is washed to completely remove sand, peeling is not needed, the air-dried beetroot and peeled lemons arejuiced and filtered by a 100-mesh fine sieve, then a mixture is put into a pot to be boiled with a big fire and then concentrated with a small fire to the weight required by the formula, and after natural precipitation, an uppermost pure part is taken for use; fresh red-pulp dragon fruits are peeled, diced, juiced and then filtered by the 100-mesh fine sieve, a filter residue is put into the pot to be boiled with a big fire and then concentrated with a small fire to the weight required by the formula, and after natural precipitation, an uppermost pure part is taken for use; water which is 20 times the weight of the clitoria ternatea flowers is added to the clitoria ternatea flowers, after a clitoria ternatea flower liquid is boiled with a big fire, cooking is conducted with a small fire for 10 minutes, sieving is conducted after braising is conducted for 20 minutes, the clitoria ternatea flower liquid continues to be cooked to 1/3 of the original volume with a big fire and then is cooked to be in a thick state with a small fire, finally, natural precipitation is conducted for at least 60 minutes, and an upper pure part is taken for use; the extracted beetroot red pigment and clitoria ternatea flower blue pigment (a combination of red-pulp dragon fruit red and clitoria ternatea flower blue) are uniformly mixed and loaded into a sterilized dark essential oil bottle, and the purple natural pigment is formed.
Owner:匠人之心(北京)食品有限公司

Electrochromic device capable of independently controlling electrochromic layers

The invention discloses an electrochromic device capable of independently controlling electrochromic layers. The electrochromic device comprises two electrode plates, an electrolyte layer and a seal edge, wherein the electrolyte layer is arranged between the two electrode plates; the seal edge is used for encapsulating the electrolyte layer; the electrode plates comprise bases, electrode layers arranged on certain sides of the bases and the electrochromic layers arranged on the outer sides of the electrode layers; the electrode layers comprise main electrode areas; the electrode layer on at least one electrode plate is also provided with an auxiliary electrode area mutually isolated from the main electrode areas; each electrode area is provided with an electrode outer leading wire which isconnected with an external power supply; the main electrode areas of the electrode layers are provided with the electrochromic layers; the electrolyte layer is arranged between the two electrode plates, and is encapsulated through a circle of the seal edge between the bases of the two electrode plates. The electrochromic device is used for solving problems that an electrochromic device with two homopolar electrochromic layers cannot be used for discoloring the two electrochromic layers and an electrochromic device with two heteropolar electrochromic layers cannot be used for independently coloring and discoloring the single electrochromic layer.
Owner:姜卫东

Layered yoghourt and preparation method thereof

Belonging to the technical field of dairy product processing, the invention discloses a layered yoghourt and a preparation method thereof. The layered yoghurt at least comprises a layer of salted mayonnaise and a layer of yoghurt base material, clear layering exists between the salted mayonnaise and the yoghurt base material, and no smudging phenomenon occurs within the shelf life; the salted mayonnaise raw materials comprise salted duck egg yolk; the preparation method includes the step of OHMIC heating sterilization. According to the invention, salted duck egg yolk is adopted as the raw material, and a specific method is adopted for sauce making, fishy smell is removed, the unique delicate flavor, fragrance and natural bright color of the salted duck egg yolk are reserved, when the salted mayonnaise is used for yoghourt products, the unique and novel taste of the salted mayonnaise can refresh people, and the yoghourt is richer in nutrition. No pigment is added, OHMIC heating sterilization is adopted, the inherent color of the product raw materials can be kept, the color and lustre are natural and healthy, natural pigment is not damaged, and thermal denaturation is avoided; and nocolor migration or layering within the shelf life are ensured after filling of the mayonnaise and yoghourt.
Owner:河北新希望天香乳业有限公司
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