32results about How to "Simple coloring process" patented technology

The invention discloses a method for coloring alginate fiber stoste by adopting lake colors, and belongs to the field of fine chemical engineering and material science. The method comprises the following steps: adding sodium alginate into deionized water, and stirring so as to dissolve sodium alginate fully to prepare alginate fiber spinning stoste; then adding lake colors into the alginate fiber spinning stoste, stirring and mixing uniformly, filtering and defoaming to obtain the lake color colored alginate fiber stoste, and preparing further to obtain lake color colored alginate fibers. The method overcomes the problem of damage of traditional dye dying on fibers; the prepared colored alginate fibers have the advantages of bright colors, high color fastness, good solvent mobility resistance and the like.

The invention discloses a coloring liquid and a coloring method for chemically coloring a 304 stainless steel surface into black, belonging to the technical field of stainless steel surface treatment, aiming to coat a back film layer on the 304 stainless steel surface, mainly solving the problem that a colored film has poor uniformity and repeatability, and being used for improving the decorative performance, wear resistance and corrosion resistance of stainless steel. The invention mainly includes the prescription of the coloring liquid and the coloring method for coloring the 304 stainless steel surface into black, wherein the coloring liquid mainly comprises main film-forming agents (chromic anhydride and chromium sulfate), an assistant filming-forming agent (sulfuric acid), additives (ferric sulfate, manganese sulfate and cerous sulfate) and water; and the coloring method mainly comprises the steps of electrolysis pretreatment, chemical coloring and hole sealing post-treatment, wherein potential control is adopted in the coloring process. A black stainless steel film obtained by using the coloring liquid and the coloring method has the advantages of uniform colored film, no obvious color difference, bright color, excellent wear resistance and corrosion resistance, good film adhesion, simple and practical coloring method, easily controlled coloring process, good color repeatability and the like.

The invention discloses a method for coloring aluminum and an alloy surface thereof, which comprises the following steps of: at first, cleaning and polishing the aluminum or the aluminum alloy surface; carrying out constant-pressure anode preoxidization for 20 minutes to 3 hours under the preoxidization voltage of 10 to 20 volts by using sulfuric acid electrolyte with the concentration of 0.1 to 3mol/liter under the conditions that the well-processed aluminum or aluminum alloy is used as an anode and graphite is used as a cathode; and then oxidizing the aluminum or the aluminum alloy by utilizing a voltage which varies periodically based on time to obtain a structurally laminar alumina photonic crystal, and coloring the aluminum or the aluminum alloy surface by the structural color of an optical forbidden band of the alumina photonic crystal, so that different colors can be adjusted within a scope of visible lights by maintaining constant time and changing the voltage only or maintaining constant voltage and changing time only. The coloration method of the invention has the advantages of no need of depositing metal ions, simple process and low cost, wide adjustment scope of colorsand less pollution.

The present invention relates to an electrochemical coloring solution for stainless steel and coloring method, which is characterized in that the electrochemical coloring solution for stainless steel comprises the following components of 30-80g/L of molybdate, 10-18g/L sulfuric acid,2-5g/L of zinc sulfate, 0.5-5g/L of manganese sulfate, 10-20g/L of sodium nitrate, 0.1-10g/L of sodium malonate and solvent being water. The coloring method comprises (1) removing greasy dirt on the surface of the stainless steel by metal detergent, and then cleaning with hot water; (2) mechanically or electrolytically polishing stainless steel workpieces; (3) then cleaning with hot water; (4) coloring: placing stainless steel workpieces in the electrolytic bath filled with coloring solution, wherein stainless steel workpieces and lead plate are respectively taken as an anode and a cathode, the coloring voltage is 1.5-2.5V, the coloring current is 0.1-20A/dm<2> and the coloring time is 1-15 minutes; (5) washing and drying to obtain the finished product. The coloring solution and coloring method according to the invention can be used for producing high-quality stainless steel products which can meet the performance requirements and consistent color tones.

The invention provides a coloration process of a brass zipper. The coloration process comprises the following steps of a) chemical deoiling treatment; b) chemical polishing treatment; c) activation treatment; d) chemical coloration treatment; and e) post treatment. The invention discloses the coloration process of the brass zipper; the coloration process is simple, feasible, low in energy consumption and low in cost; through optimizing the constitution of a coloration solution and a process condition, not only is the higher bonding force of a colored film ensured, but also the better color fastness to washing and the corrosion resistance of the colored film are ensured; and the coloration process has higher popularization and application value.

The invention discloses a three-way connecting fitting of a face pipe, which comprises a rigid plate, a clamping sleeve of an upper plastic material and a clamping sleeve of a lower plastic material, wherein the clamping sleeve of the upper plastic material and the clamping sleeve of the lower plastic material are mutually buckled and form a sealing component of the face pipe, the rigid plate is arranged in the clamping sleeve of the upper plastic material and the clamping sleeve of the lower plastic material, which are mutually buckled, and forms a connecting component for connecting the face pipe, and a connecting part of an upright post, which penetrates through the clamping sleeve of the lower plastic material, is arranged on the rigid plate. The three-way connecting fitting of the face pipe has the advantages of simple structure, high joint strength, good toughness, good sealing property and low cost.

The invention discloses a connection fitting for face pipes. The connection fitting for the face pipes comprises a plastic material clamping sleeve and two rigid plates, wherein the plastic material clamping sleeve is used for sealing end openings of the face pipes and is provided with two face pipe sealing end openings; the two rigid plates are used for connecting the face pipes and are arranged into the sealing end openings of the face pipes respectively; and the two rigid plates are fixedly connected with each other. The connection fitting for the face pipes has the advantages of simple structure, high connection strength, high toughness, high sealing property and low cost.

The invention discloses a printing and dyeing process for fire-fighting safety fabrics, wherein the printing and dyeing process comprises the raw material components in parts by weight: 35-85 parts ofpolyamide resin, 25-65 parts of a phthalocyanine dye, 12-60 parts of a wetting dispersant, 12-36 parts of a light stabilizer and 5-15 parts of an antioxidant. The phthalocyanine dye is one or more oftetrasulfonated metal phthalocyanine dyes, sulfonated phthalocyanine dyes and zinc phthalocyanine dyes. Through the way, the printing and dyeing process of the fire-fighting safety fabrics has low production cost, good stability after coloring, and simple coloring process, is mainly used for cotton spinning coloring, has good visual effect after dyeing and rich color types, and can be used for printing and dyeing of various fire-fighting safety fabrics.

The invention discloses a novel night-time luminescent textile dye. The raw material components include: 35-85 parts of polyamide resin, 25-65 parts of phthalocyanine dye, 12-60 parts of wetting and dispersing agent, 12-36 parts of stabilizer and 5-15 parts of antioxidant, the phthalocyanine dye is one or more of tetrasulfometal phthalocyanine dye, sulfonated phthalocyanine dye and zinc phthalocyanine dye. Through the above-mentioned method, the production cost of the novel night-time luminescent textile dye of the present invention is low, and after coloring, it has better stability and a simple coloring process. It is mainly used for textile coloring of cotton, and the visual effect after dyeing is good. Used for printing and dyeing of various fire safety fabrics.

The present invention relates to a kind of colour simulation artistic moulding electric equipment switch socket and its production method. It includes electric equipment switch panel, power socket panel, moulding process of combined socket panel and colouring process. Said colouring process ues Multimix high-performance paint as colouring material, and can adopt the various operation methods of spray-coating, brush-coating and hand-painting.

The invention discloses a magnesium alloy surface chemical coloring method. The magnesium alloy surface chemical coloring method comprises the steps that firstly, Zn(H2PO4)2 and Mn(H2PO4)2 are weighedand fetched, the Zn(H2PO4)2 and Mn(H2PO4)2 are added to water and stirred, the Zn(H2PO4)2 and the Mn(H2PO4)2 are completely dissolved, and it is guaranteed that the total mass concentration of the Zn(H2PO4)2 and the Mn(H2PO4)2 is 4%-6%; then, Na2ZrF6 is added, stirring continues, and the mass concentration of the Na2ZrF6 is 0.05-0.15%; after the Na2ZrF6 is completely dissolved, KMnO4 is added, the mass concentration of the KMnO4 is 0.5%-1.5%, and the solution is purple at the moment and stands for use; surface rust and oil removal and alkali washing-water washing are conducted on a magnesiumalloy, the magnesium alloy obtained after surface rust and oil removal is placed in the solution prepared in the beginning and is dipped, then the magnesium alloy is taken out and placed in hot waterfor washing, and then the colored magnesium alloy is obtained. The magnesium alloy surface chemical coloring method solves the problem that in the prior art, the color of the colored surface of the magnesium alloy is uneven and poor in durability.