177results about How to "Good blackness" patented technology

The invention relates to a compound black reactive dye composition, and applications thereof and a fiber or fiber textile made thereby, belonging to the field of reactive dyes. Particularly, the invention relates to a compound black reactive dye composition applicable to printing and dyeing cotton, rayon, hemp, regenerative fiber or textiles thereof, or to printing and dyeing polyamide fiber, cellulose fiber, protein fiber or textiles thereof. The invention further relates to applications of the compound black reactive dye composition, and fiber or fiber textile made by the compound black reactive dye composition.

Disclosed is a composite black oxide particle which is composed of oxide of cobalt, copper and manganese. The copper/cobalt molar ratio is 0.1-0.5, and the manganese/cobalt molar ratio is 0.2-1.0. The composite black oxide particle further contains silicon, and the silicon content to the total oxide particle is 0.1-3 mass %. The surface of the composite black oxide particle is coated with aluminum oxide. The Al content in the surface coating to the entire particle is 0.05-3 mass %.

The invention relates to an aqueous matt surface finishing agent for PVC (Polyvinyl Chloride) leather and a preparation method thereof. The aqueous matt surface finishing agent is prepared from the following components: aqueous polyurethane resin, water, silicon dioxide matting powder, polysiloxane water dispersoid, aqueous wax emulsion, an aqueous wetting agent, an aqueous de-foaming agent and a thickening agent. The invention further relates to a preparation method of the aqueous matt surface finishing agent for the PVC leather. The aqueous matt surface finishing agent for the PVC leather, disclosed by the invention, has an excellent matt surface effect, a good heavy and skin feeling and a pollution-resisting performance and is aqueous and environment-friendly; meanwhile, the aqueous matt surface finishing agent has the advantages of good adhesive force, scratching resistance, bending resistance and forest resistance, and can meet the higher and higher requirements on skin feeling and pollution resistance of home decorations, electric appliances, furniture, automobile interiors and the like.

Carbon-containing modified polystyrene resin particles which contain a carbon-containing polypropylene resin and contain a polystyrene resin in an amount of 100-400 parts by mass, excluding 400 parts by mass, per 100 parts by mass of the carbon-containing polypropylene resin. The polystyrene resin proportion in a central part of each particle as calculated from the ratio between absorbances at 698 cm<-1> and 1,376 cm<-1> (D698/D1376) obtained from an infrared absorption spectrum for the central part in infrared spectroscopic analysis by the ATR method is at least 1.2 times the polystyrene resin proportion in the whole particle.

The invention relates to a carbon black crusher which is characterized in that a frame, a main powdering chamber and a secondary powdering chamber are included, wherein, the main powdering chamber and the secondary powdering chamber are arranged on the frame sequentially; the main powdering chamber is divided into a main powdering cavity and a filtration cavity by a main screen which is vertically arranged and a breathable layer which is vertically arranged at the periphery of the main screen; a disintegrated powder mixer is vertically arranged in the main powdering cavity; a granular carbon black inlet and a granular carbon black outlet are formed on the main powdering cavity; the material outlet of the filtration cavity communicates with the secondary powdering chamber; the secondary powdering chamber is also divided into a secondary powdering cavity and a secondary filtration cavity by a secondary screen which is horizontally arranged and an outer casing baffle plate which is arranged at the periphery of the secondary screen; a secondary disintegrated powder mixer is horizontally arranged in the secondary powdering cavity; a material discharging pipe is arranged on the secondary powdering cavity; through a blower, carbon black is fed into a bag filter for filtering and collecting; and the filtered and collected carbon black enters a storage hopper. The carbon black product ground and crushed by the crusher of the invention has the advantages that the particle size is small, the particle size distribution is narrow, the surface of the carbon black has a lot of oxygen-containing functional groups, and the dispersion property and the flow property of the carbon black are good.

The invention discloses a cationic self-matting resin, and a preparation method and application thereof. The cationic self-matting resin comprises isocyanate, a diamine cationic hydrophilic chain extender, macropolyol, monohydric alcohol and/or dihydric alcohol with the main chain and/or the side chain containing a polyoxyethylene chain, a small molecular diamine chain extender, a catalyst, a solvent and a neutralizing agent. The preparation method has the advantages of simple process, convenience in operation, safety and non-toxicity, and the obtained cationic self-matting resin has the advantages of small particle size fluctuation, good emulsion stability and resistance, good adhesion to anionic leather, glass and other substrates, and bringing of soft and smooth hand feeling and naturalrich appearance for leather, and can be widely applied to the fields of leather finishing, wood plastics, paper printing, printing and dying inks, printing coatings, packaging coatings and matt nailpolish.

Provided is a black PTFE porous film which comprises a black colorant-containing PTFE nanofiber (D) containing a polytetrafluoroethylene (PTFE) nanofiber (E) and a black colorant (B) and has a value (V), as represented by a Munsell symbol in accordance with JIS Z 8721, of not more than N2.5, wherein the black colorant-containing PTFE nanofiber (D) is obtained by subjecting a spinning solution containing at least PTFE or modified PTFE (A) to an electrospinning method.

The invention discloses a low-odor spray-coating-free PC/ABS (polycarbonate/acrylonitrile butadiene styrene) material and a preparation method thereof. The material is prepared from the following ingredients including 40 to 80phr of PC, 20 to 60phr of ABS, 5 to 10phr of AS, 0 to 1phr of lubricating agents, 1 to 1.5phr of deodorants, 0.5 to 1phr of heat stabilizers, 0.5 to 1phr of color masterbatch, 0 to 10phr of compatibilizers, 0 to 5phr of processing auxiliary agents, 0.1 to 0.5phr of antioxidants and 0 to 5phr of ultraviolet light absorbers. The material has the low odor and spray-coating-free appearance requirements; the odor grade is lower than or equal to 3.0; the appearance luster is good; the blackness is high; the thermal stability is high; the defects of flowing marks, melting and connecting wires, silver silks and the like cannot be easily generated; the spraying work procedure is omitted; the good spray-coating-free effect is achieved; through the creative selection on raw materials and auxiliary agents and the process innovation, a low-odor spray-coating-free PC/ABS material is produced, and is obviously superior to similar products in the market.

To provide a polyphenylene ether resin composition which has excellent mechanical properties such as shock resistance and heat resistance, and has a high degree of blackness, excellent weather resistance, and excellent tracking resistance. [Solution] A polyphenylene ether resin composition formed by including 0.01-5 parts by weight of carbon black (B) and 0.1-20 parts by weight of an alkali earth metal carbonate and/or sulphate (C) per 100 parts by weight of a resin component (A) which has polyphenylene ether resin (a1) as the main component thereof. By combining, in a prescribed proportion, an alkali earth metal carbonate and/or sulphate in a polyphenylene ether resin composition containing carbon black, tracking resistance and shock resistance can be improved.

A method of producing a polyurethane resin-bonded pigment aqueous dispersion includes causing (I) a pigment having a surface acidic group to come in contact with (II) a basic compound having two or more amino groups selected from a primary amino group and a secondary amino group in its molecule in an aqueous medium so that the pigment has an unreacted surface amino group, and causing the pigment to come in contact and react with (III) a polyurethane resin having an isocyanate end group. A polyurethane resin-bonded pigment aqueous dispersion produced by the method exhibits excellent image density, dispersibility, and storage stability.

The invention discloses a high-strength, high-brightness black and glass fiber reinforced nylon material and a preparation method thereof. The material is prepared from the following components in percentage by mass: 35-79.5% of nylon, 10-30% of transparent nylon, 10-30% of glass fibers, 0.5-2% of a functional master batch, 0-1% of an antioxidant, 0-1% of a lubricant, and 0-1% of a scratch-resistant auxiliary agent. The glass fiber reinforced nylon material has the beneficial effects that the crystallinity of the nylon material is controlled and an injection molding process is adopted to ensure that the material has higher glossiness, and the self-made functional master batch is added, so that the reinforced nylon material is covered with the glass fibers, and the blackness and the glossiness are improved. The nylon composite material prepared by the invention not only meets the requirements of parts on the mechanical properties of the material, but also meets the requirement that theappearance effect of high brightness black can be achieved without spraying, and solves the problem that the strength and the appearance cannot be considered at the same time.

The invention provides a high-temperature corrosion-resistant phosphating solution. The phosphating solution is a mixture comprising the following components by weight in per liter mixture: 320-330g of 80% phosphoric acid, 120-125g of zinc oxide, 5-7g of sodium molybdate, 12-13g of citric acid, 100-150g of zinc nitrate, 4-6g of nitric acid, 4-6g of nickel nitrate, 2.0-2.5g of chromic acid, and the balance of water. The phosphating solution provided by the invention can treat a variety of metal workpiece materials with a short working time. The phosphating film formed on the surface of the workpieces is thick and dense and has the characteristics of good adhesion, good blackness, high corrosion resistance and high stability. The phosphating solution can be widely used for motors, gears, a variety of high strength carbon steels, alloy steel works and the like, and is suitable to be used in a high temperature environment with a stable operation.