Please select the most similar patent number from A, B, C and D. Which number is?
Provided is a process for preparing a colour masterbatch, comprising the following steps: carrier grinding, colouring material grinding, accessory grinding, assistant agent grinding, mixed grinding, high-speed grinding, extrusion pelleting and drying. The colour masterbatch prepared by employing the process can be easily mixed with PET product plastics, and obtain the uniform colouring effect. The colour masterbatch not only improves the dispersibility, tinting strength and covering power, but also has the performances of weather resistance, acid resistance, heat resistance and cold resistance, and keeps the chemical stability of a pigment, such that the colour masterbatch is more environmentally friendly and healthier during use.
A: Disclosed is a method for preparing a high-performance iron oxide red/clay mineral hybrid pigment by mechanochemistry, the method comprising mixing a clay mineral, a soluble iron source and an alkali source in a mill for grinding so as to obtain a precursor, wherein the ratio of balls to materials is controlled at 20-50, the grinding speed is 300-1200 rpm, and the grinding time is 30-360 min; and then calcining the precursor at 500ºC-900ºC for 30-120 min to obtain the high-performance iron oxide red/clay mineral hybrid pigment. The iron oxide red/clay mineral hybrid pigment has a bright and beautiful color, excellent high-temperature and acid resistance, and can satisfy requirements for high-performance iron oxide red pigments in the fields of paints, inks, ceramics, anti-corrosive coatings, etc. Furthermore, the preparation method of the present invention does not produce the three wastes, and is a simple process that is environmentally friendly and suitable for industrialized production, thus it is expected to replace existing production processes of iron oxide red pigments.
B: A masterbatch composition, comprising a thermoplastic polyester, a yellow colorant component, a red colorant component, and a blue colorant component. The yellow colorant component is selected from Pigment Yellow 147, Pigment Yellow 18, Pigment Yellow 183, Dye Brown 53, or a combination thereof. The red colorant component is selected from Pigment Red 22, Pigment Red 144, Pigment Red 202, Pigment Red 214, or a combination thereof. The blue colorant component is selected from Pigment Blue 60, Dye Blue 67, or a combination thereof. The present invention further provides a colloidal particle that is obtained by developing the above masterbatch composition in a base material mainly composed of a thermoplastic polyester. An article produced from the present disclosure has an effect of slowing down and reducing heat absorption, and can maintain its original color during processing.
C: The present invention provides a method for preparing a high temperature resistant bismuth yellow pigment under mechanochemical assistance. The method comprises: mixing an oxide which is used as a matrix and a dopant with a bismuth source, a vanadium source, or a molybdenum source, and placing the mixture into a mill for controlled grinding to obtain a precursor; further calcining and pulverizing the precursor to obtain high temperature resistant bismuth yellow pigment powder. The bismuth yellow pigment produced in the present invention has a bright color, and a b* value is greater than 90; the performance is stable, and the heat resistance can reach 800 °C or higher. By adoption of a mechanical grinding method, the preparation process is environmentally friendly, and no three wastes are produced, and reaction conditions are simple. Doping of BiVO 4  crystal lattices by introducing oxides can be achieved, so that the particle size and particle size distribution of the bismuth yellow pigment can be effectively controlled while the color performance of the bismuth yellow pigment is greatly improved; on the basis of the oxide doping, the heat resistance of the bismuth yellow pigment can be significantly improved without covering the surface of bismuth vanadate with a layer of solid deposits.
D: Provided are a method for preparing a lake pigment, a lake pigment and the use thereof, which belong to the technical field of lake pigments. The method for preparing a lake pigment involves adding a solution containing at least two metal ions to an acidic aqueous solution containing a pigment raw material, reacting same to obtain solution A, further adding a chelating agent solution to the solution A, and carrying out a chelation reaction at a pH of 6-8 to obtain the lake pigment. The preparation method is simple in process and convenient in operation, and the prepared lake pigment has a small particle size, a high coloring property, and an excellent heat stability, acid and alkali resistance and light resistance, thereby broadening the scope of application of the lake pigment, and solving the technical problems of lake pigments prepared by using existing preparation methods having a larger particle size, a low coloring property, limited applications, and none of the light resistance, acid and alkali resistance, heat resistance, etc., thereof being ideal. Also provided is a lake pigment prepared by using the preparation method. Also provided is the use of the lake pigment in dyes, printing inks, pigments, inks, medicines, cosmetics or foods.
Answer: B