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

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 relates to a preparation method of special color master batch for ultrahigh-molecular-weight polyethylene spinning. The preparation method is implemented through the following four steps of: 1) selecting high-molecular-weight polyethylene resin as main materials, then adding organic pigment powder, antioxidant, light stabilizer and mineral oil, and mixing by using a mixing machine to prepare colored resin mixture; 2) extruding in a fused state by using an exhaust-type double-screw extruder to obtain a plurality of lines; cooling and solidifying the extruded colored lines through a water trough, and cutting the lines into colored master batch grains by using a grain cutting machine; 3) fully drying the colored master batch grains by using a dryer; and 4) grinding the colored master batch grains into even powder to obtain the special color master batch with uniform grain size for ultrahigh-molecular-weight polyethylene spinning. The preparation method of special color master batch for ultrahigh-molecular-weight polyethylene spinning has the advantages that the demands for various colors needed for ultrahigh-molecular-weight polyethylene spinning are met, the production technology is simple, the cost is low and the preparation method is the best technique for preparing various colored fibers at present.

The present invention relates to a double-mesh ceramic textured roller and its manufacturing method. On the ceramic layer of roller body of said textured roller two types of meshes which are regularly arranged are set, and the form, size and depth of meshes of said two types are different. The production method of said textured roller incldues the following steps: making two laser beams simulataneously and respectively pass through pass die to change its form and size, then pass through same focusing lens and focus on two points of ceramic layer of the roller obdy to make engraving, utilizingautomatic control of transmitting frequency and energy of the laser beam and movement of ceramic roller or laser device so as to continuously engrave meshes with a certain arrangement regularity and proper depth, and the form of meshes can have various ones, so that it can raise printing quality.