56results about How to "Bright and uniform color" patented technology

The invention discloses a production process for coloured polyester staple fibre. In the production process, regenerative PET (Polyethylene Terephthalate) material is used as the raw material, and the finished product is acquired by pre-treating, rotary drum drying, melt spinning, cooling forming, winding, drafting, curling, oil applying, thermosetting and cutting-off in sequence, wherein the rotary drum drying comprises the steps of firstly drying the regenerative PET material for 7.5h-8.5h and then adding master batches with the final mass fraction of 2%-10%, and toner; the total drying time is 9.5h-10.5h; both the screw rod and the spinning beam of a screw extruder in the melt spinning step are at the temperature from 265 DEG C to 275 DEG C; spinneret plates are provided with 3500 bores having the diameter of 0.2mm and are arranged in 14 circles; cooling forming is realized through circular air blow, the temperature of the circular air is 22 DEG C to 26 DEG C, and the velocity of the circular air is 4.0m/s to 5.0m/s; the total draft multiple is 3.0-3.2 times; and the thermosetting temperature is 168 DEG C to 172 DEG C, and the thermosetting time is 13 minutes to 17 minutes. Theproduction process can save the cost and is helpful for environmental protection; the produced product has smaller linear density, higher colour fastness and smooth and comfortable hand feeling.

The invention provides an artificial colored sand which is manufactured by composite color paste and gravel, wherein the composite color paste includes acrylic ester emulsion, toner, auxiliaries and water. According to the technical scheme, the produced artificial colored sand is rich in color, has bright and uniform color and luster, and has little limitation from the ore source; and meanwhile, the artificial colored sand has the cost lower than that of the natural colored sand, and the demand of a customer on personalized color can be met; and the economy and environmental protection can be achieved; and moreover, the composite color paste and the gravel have high attaching force during being sintered, so that the flexibility of the colored sand is improved. Compared with currently used natural colored sand, the artificial colored sand provided by the invention has uniform color, excellent film forming property, high attaching force, high resistance to water and alkali, relatively high pollution resistance, and super wear resistance, is economic and environment-friendly, and solves the problems of the natural colored sand that the ore sources are gradually reduced, the demands on production cannot be met, products in different batches have color difference, and the timeliness of the production cannot be met.

The invention discloses artificial colour sand and belongs to the field of building coating. The artificial colour sand comprises stone sand and base slurry, wherein stone sand comprises at least one of silica sand, basalt and calcite, the grain size of the stone sand is 30-120 meshes, the base slurry is prepared from the following raw materials in parts by weight: 40-50 parts of fluorocarbon resin, 25-35 parts of base solvent, 0.5-0.9 part of dispersing agent, 0.1-0.3 part of wetting agent, 10-20 parts of colour powder, 18.8-20 parts of cosolvent, 0.1-0.5 part of accelerant, 5-10 parts of coupling agent and 0.5-0.8 part of thickening agent, and the weight ratio of stone sand to base slurry in the artificial colour sand is 19:1. The invention also provides a preparation method of the artificial colour sand. The artificial colour sand is uniform in colour, good in weather resistance, economical and environment-friendly, the problem that natural colour sand is scare is solved, and requirements of building decoration are met.

The invention relates to a preparation method for colored antibacterial viscose fiber, which consists of the following steps: (1) formulating the vat dyes of one or a plurality of colors into a paste respectively by alkaline solution according to the coloring requirements of fibers, and then adding hydrosulfite and stirring for reacting and generating vat dye leuco salt solution, mixing the vat dye leuco salt solution of a plurality of colors according to the color matching proportion; or formulating the vat dyes of a plurality of colors into a paste by alkaline solution after mixing according to the color matching proportion, then adding the hydrosulfite for generating vat dye leuco salt mixed solution, (2) fully mixing the nanometer silver powder having the particle size no more than 100 nm with the colloid mixture to formulate a nanometer silver colloid water solution containing 2-5 percent of nanometer silver and 4-10 percent of colloid protective agent, (3) mixing the two solutions prepared by step (1) and step (2) and adding the mixed solution into the raw material solution of viscose rayon in any phase of the aging process of the viscose to spin, refine and dry, thus preparing the colored antibacterial viscose fiber.

The invention relates to the technical field of nylon color masterbatch, and discloses uses of a toner complex in improvement of color stability in a nylon boiling process, wherein the toner complex comprises an organic pigment and a solvent dye according to a weight ratio of 1:0.2-2. The invention further discloses a boiling-resistant color master batch, which comprises the following raw materials by weight: 30-70% of a carrier resin, 20-40% of a toner complex, 5-20% of a dispersing agent and 5-10% of other auxiliary agents. The preparation method of the boiling-resistant color master batch comprises: uniformly mixing a toner complex and a dispersing agent, and carrying out melt blending on the mixture, a carrier resin and other auxiliary agents in blending equipment to obtain the boiling-resistant color master batch. According to the invention, the color master batch prepared from the toner complex compounded by the organic pigment and the solvent dye is applied to nylon products, sothat the color retention degree of the products can be improved, and the color difference value [delta]E of the nylon products before and after boiling is less than or equal to 1.0 while the productperformance and the appearance are met.

The invention discloses an irradiation indicating card and methods for preparing and using the same. The irradiation indicating card comprises a standard color code and an indicating card; the standard color code is an annular card and is divided into six equal parts that are six areas with different colors; each area represents a corresponded irradiation dose; and the six kinds of colors of the six areas respectively represent the following irradiation doses: 50 G y, 30 G y, 25 G y, 15 G y, 5 G y and 1 G y from deep to shallow; a center of the annulus is an empty hole and is used for placing a colorimetric area of the indicating card; and a diameter of the empty hole is 7 to 11 mms; besides, right and back sides of the standard color code are processed by film pressing processing. Moreover, the indicating card is a rectangular card with a length of 40 to 60 mms, a height of 12 to 22 mms and a thickness of 0.5 to 1.0 mms. According to the invention, the above-mentioned structure is employed; the irradiation indicating card has lightweight and is easy to be taken by hands to carry out color comparison; furthermore, the preparation and the usage methods are simple; it is easy to determine irradiation doses; and the detection result is accurate; besides, the irradiation indicating card can be cleaned and disinfected as well as be used repeatedly for many times.

The invention relates to light-absorption heating denim woven by a production method of interweaving warp yarns and weft yarns. The light-absorption heating denim is characterized in that the warp yarns are formed by the mixture of three flat yarns including cotton yarns, light-absorption acrylic yarns and hollow polyester yarns by the adoption of siro tight spinning; the weft yarns are made of yarns of the cotton and the hollow polyester wrapped by spandex. The production method of the light-absorption heating denim comprises the production steps of a, yarn spinning; b, ball warping; c, warp separating; d, dyeing; e, slashing; f, weaving; g, desizing. The light-absorption heating denim and the production method thereof have the advantages that the production method solves the problem that the coloring is not uniform in the dyeing process; the produced light-absorption heating denim is bright and uniform in color, the color fastness is high, the blurred degree of the cloth surface after being washing with water is greatly reduced, and space is created for washing deep processing of downstream clothing.

The invention relates to the technical field of leather making techniques and provides a wet-state dyeing finishing and fixation method for leathers based on a zirconium-aluminum-titanium complex. The zirconium-aluminum-titanium complex is added in a later period of dyeing and fat-liquoring; the zirconium-aluminum-titanium complex is a multi-metal cation tanning agent which may combine with leather fibers so as to increase positive charge on leather surface, to improve tinting strength of the leather surface and color brightness and to basically solve the shading problem, color fullness of cationic crust leathers is improved, consumption of dyes and formic acid in traditional fixation methods is lowered, dyeing rate and fastness of dyes are increased, the content of dyes in spent dye liquor is further decreased, wastewater treatment is easier, and a leather making process is greener.

The invention relates to a method for processing ready-to-eat sea cucumber with different flavors. The method comprises the following steps: 1) performing pre-treatment; 2) boiling: placing the pre-treated fresh sea cucumber in boiling water at the temperature of 80-100 DEG C, boiling the material for 3-10 min and cooling the material; placing the material in the boiling water at the temperature of 80-100 DEG C for 10-40 min, and cooling the material to room temperature; 3) performing low-temperature low-pressure seasoning or performing nutrition reinforcement; 4) product package: cooling a system to room temperature, performing ozone sterilization and vacuum package to obtain the finished product, which is the ready-to-eat sea cucumber with different flavors; and 5) packaging the ready-to-eat sea cucumber with different flavors according to the requirement to obtain the dried cucumber with different types. The method has the advantages of simple process, high nutrition value, and convenient eating.

The invention provides bamboo pulp fiber fabric based on grape pigment dyeing and a preparation method thereof. The preparation method comprises the following steps of: washing fresh grape skin and grape seeds to dry in air, freezing and grinding the fresh grape skin and grape seeds by use of liquid nitrogen, filtering and screening to obtain powder raw materials, putting the powder raw materials into a supercritical carbon dioxide device to extract, thereby obtaining grape pigments; adding the grape pigments into deionized water, adding a silk fibroin aqueous solution, uniformly stirring, and adding sodium dodecyl benzene sulfonate to obtain grape pigment dye; boiling off and bleaching bamboo pulp fiber fabric, soaking the bamboo pulp fiber fabric in an oxidant solution to carry out activation treatment, taking out, spin-drying, putting the bamboo pulp fiber fabric into the grape pigment dye to directly dye, adding rare-earth elements to fix color, continuously dyeing, taking out the bamboo pulp fiber fabric to carry out soaping, washing, drying and sizing, thereby obtaining the bamboo pulp fiber fabric based on grape pigment dyeing.

The invention discloses a simple cow split leather color changing technology which comprises the steps of cow split leather weighing, water returning, decolorization, retanning, dyeing, liquid expansion, color fixation and emergence and stacking. The raw materials are semi-finished leather blanks, scientific processing is carried out, technological parameters are reasonably controlled, the decoloration degree of the leather blanks is high, the cow split leather is bright and uniform in color, soft and comfortable after dyeing is carried out again, a leather board is solid, and no adverse influence is produced on the fiber strength. By carrying out decolorization and retanning on the semi-finished cow split leather blanks, the leather blanks can be recolored again, and the product is non-toxic and environmentally friendly. The simple two-layer cow leather color changing technology can be applied to secondary production of leather, a new path is developed for secondary utilization of the leather blanks, the flexibility and safety of business operation can be greatly improved, and the economic benefits and social benefits are remarkable.

The invention provides water-based transparent polyurethane, water-based UV curing gloss oil, water-based UV curing ink and a preparation method thereof. The water-based transparent polyurethane is prepared from the following raw materials in parts by weight: 30-50 parts of isophorone or diisopropylketone, 5-20 parts of diisocyanate, 80-120 parts of polyester polyol, 1-3 parts of 2, 2-dimethylolpropionic acid, 10-30 parts of neopentyl glycol and 5-30 parts of C7-C22 alkanediol. Isophorone and diisopropylketone not only can be used as reaction monomers, but also can be used as solvents, have high dissolvability to diisocyanate, and are miscible with water, so that the generated prepolymer can form a uniform dispersion in water. 2, 2-dimethylolpropionic acid not only can be used as a chain extender, but also can enable polyurethane to obtain a self-emulsifying property, so that the self-emulsifying water-based polyurethane with excellent stability can be prepared in an internal emulsification manner. Under the action of isophorone, diisopropylketone, neopentyl glycol and alkanediol, a polyurethane aqueous dispersion which is uniformly dispersed can be generated, and the polyurethaneaqueous dispersion has high refractive index and aqueous solution stability.

The invention discloses a single tin salt electrolytic coloring method for a vertical hanging type electrolytic cell. The method comprises the following process steps of step S1, surface purificationtreatment of an aluminum product; step S2, preparation of an oxidation film: placing the aluminum product subjected to surface purification treatment in an oxidation tank, wherein the concentration ofsulfuric acid in the oxidation tank is 170-180 g/L, the concentration of aluminum ions is 12-16 g/L, the oxidation temperature is 16-17 DEG C, the voltage is 12.0-18.0V, and anodic oxidation is carried out for 30-60min; step S3, electrolytic coloring: placing the oxidized aluminum product in the electrolytic cell, wherein the pH of a single tin salt electrolyte is 0.5-0.8, the electrolysis temperature is 18-20 DEG C, the voltage of an alternating current power supply is 16-18V, and electrolytic coloring of the aluminum product in the circulating single tin salt electrolyte is carried out for200-250S; and step S4, water washing post-treatment. According to the single tin salt electrolytic coloring method for the vertical hanging type electrolytic cell, the champagne-color aluminum productwith bright and uniform color and strong metal texture can be obtained, the emission of nickel-containing wastewater and waste residues is greatly reduced, and the pollution discharge cost of enterprises is reduced.