4results about How to "Avoid color differences" patented technology

The invention discloses a high and low temperature general type automobile finish paint and a preparation method thereof, and the high and low temperature general type automobile finish paint comprises the following components by mass: 10-20 parts of a water-based self-crosslinking modified acrylic emulsion, 3-20 parts of water-based hydroxy acrylic resin, 0-15 parts of an acrylic polyurethane copolymer dispersion, 0-15 parts of a water-based acrylic resin emulsion, 0-15 parts of a water-based acrylic resin emulsion, 0-15 parts of a water-based acrylic resin emulsion, and 0-15 parts of a water-based acrylic resin emulsion. 5-15 parts of a water-based polyester secondary dispersion, 1-5 parts of high-activity amino resin and 0-5 parts of water-dispersed low-temperature cured blocked isocyanate; the automobile finish paint further comprises an additive, a functional auxiliary agent, a solvent and a pigment. The coating disclosed by the invention can be simultaneously applied to the vehicle body and the exterior decoration, so that collinear production can be realized, the turnover efficiency of the vehicle body and the exterior decoration is improved, the coating efficiency is improved, the coating cost is saved, and the productivity is fully utilized; the same coating is used for the automobile body and the exterior decoration, so that the color stability is easier to achieve, and the color difference between the high-temperature coating and the low-temperature coating is avoided; product SKU is reduced, and efficient inventory management is facilitated; and meanwhile, high-temperature and low-temperature products are compatible, a product window is wider, and customer construction is facilitated.

The invention discloses a temperature-adjustable cloth dyeing device, and relates to the field of cloth dyeing, the temperature-adjustable cloth dyeing device comprises a dyeing box, two symmetrical tensioning mechanisms are arranged above the dyeing box, and a top pressing roller is arranged between the two tensioning mechanisms; the tensioning mechanism comprises a Z-shaped plate rotationally connected to the top pressing roller and an electric rail fixed to the side face of the dyeing box. According to the cloth dyeing device capable of adjusting the temperature, dye in the dyeing box can be uniformly mixed in the vertical direction and the horizontal direction, so that the dye in the dyeing box is fully stirred and mixed, the dye is uniformly distributed in the dyeing box, and the problem of color difference after cloth dyeing caused by non-uniform distribution of the dye is effectively avoided; meanwhile, the top pressing roller presses the cloth downwards and is matched with the two auxiliary rollers, so that the cloth is tensioned, the cloth in the dyeing box is in uniform contact with dye liquor, and the phenomenon that the cloth is dyed unevenly due to cloth stacking is effectively avoided.

The utility model relates to paint spraying equipment technical field discloses a kind of paint spraying pump for pressure reducing valve surface paint spraying, including fixed base plate, mounting bracket, feed pipe, pump body, filtering mechanism, mixing box, driving motor and discharge pipe, the mounting bracket is fixedly connected in the top of fixed base plate, the pump body is fixedly installed in the inboard of mounting bracket, the feed pipe is set up in the top of mounting bracket, the filtering mechanism is set up in one end of pump body, the mixing box is set up in the other end of filtering mechanism, the driving motor is set up in the top of mixing box, the discharge pipe is set up in the side of mixing box bottom portion. The paint spraying pump for pressure reducing valve surface paint spraying, by using the disassembly of filter screen to fixing part, the impurities of paint in pump body can be cleaned and filtered, ensure that the paint effect through discharge pipe is good, can effectively filter the impurities in paint, prevent paint spraying pump from being blocked, improve work efficiency.

The application discloses a computer color matching method for one-bath dyeing of blended fabrics, which can avoid color matching difference, improve color matching accuracy, solve color bleeding and mutual influence between dyes in the dyeing process of the blended fabrics, reduce human and material resource consumption, and has wide application conditions, wide adaptability and strong practicability. The technical scheme is as follows: the blended color matching model for one-bath dyeing is established, color matching difference caused by different dyeing methods is avoided, and the accuracy of color matching results is improved; the blended color matching model also solves the problems of color bleeding and mutual influence between dyes in the dyeing process of the blended fabrics, has wide applicability without the need of establishing a color bleeding database; and a corresponding blended color correction method is established according to the color matching results, and the practicability is stronger in actual production.