4results about How to "High speed printing" patented technology

The invention discloses a modified polylactic acid material applied to high-speed 3D printing and a preparation method of the modified polylactic acid material. The modified polylactic acid material comprises the following components in parts by weight: 50-80 parts of a polylactic acid material, 10-30 parts of inorganic powder, 1-10 parts of a toughening agent, 0.1-0.5 part of a coupling agent, 0.1-0.4 part of a hindered phenol antioxidant, 0.1-0.4 part of a phosphite antioxidant and 0.2-0.6 part of a plasticizer. The invention has the following beneficial effects: PLA with different flowability is compounded as a base material and is blended with inorganic powder, so that the printing speed of the material reaches 500mm / s, and excellent printability of high precision, no wiredrawing and layer grain covering is achieved; the coupling agent is introduced into a system of the PLA and the inorganic powder, so that the surface polarity of the inorganic powder is improved, the inorganic powder has good compatibility with a resin matrix, and the interlayer adhesive force and the mechanical property of the material are further improved.

The application discloses a kind of photo-curing 3D printing release devices and methods, first by import to the first chamber into lubricant, and make the lubricant can flow after flowing through the first chamber from outlet, simultaneously make the lubricant in the first chamber can be penetrated into the permeation membrane and form a layer of isolation layer on the upper surface of permeation membrane, after forming isolation layer, then inject photo-curing 3D printing forming material into the second chamber, then make external light source can be sequentially penetrated by from bottom to top through light-transmitting bottom wall, lubricant in the first chamber and permeation membrane, to make photo-curing 3D printing forming material in the second chamber photo-curing forming, and then make the forming product and permeation membrane have good release effect, simultaneously also make the application need not to be separately set release film when using, avoid the product forming quality to be affected due to the technical defects of poor release effect.

The invention provides a high-speed imaging device, a high-speed thermal printer and a printing method. The high-speed imaging device comprises a plurality of thermal sensitive modules, a plurality of rubber roller modules and a paper feeding driving device, and the thermal sensitive modules and the rubber roller modules are located on the two sides of a paper feeding channel; the thermosensitive module comprises a thermosensitive support and thermosensitive pieces, the thermosensitive pieces are arranged on the thermosensitive support, printing head arrays are arranged on the thermosensitive pieces, the multiple printing head arrays are overlapped along the paper feeding channel, the paper feeding driving device drives the rubber rollers to rotate synchronously, and one thermosensitive piece is opposite to one rubber roller. The at least two thermosensitive sheets are arranged on the same side of the paper feeding channel, and the imaging areas of the printing head arrays on the thermosensitive sheets are overlapped, so that the multiple thermosensitive sheets can image the same side of the printing medium for multiple times, even if the printing speed and the paper feeding speed are improved, the imaging quality such as concentration and definition can be met, and the printing efficiency is improved. And the purpose of high-speed printing is achieved, and double-color or multi-color printing can be achieved through the arrangement of the multiple thermosensitive pieces.

The application belongs to the technical field of anti-counterfeiting paint preparation, and particularly relates to a kind of invisible fluorescent inkjet material and its preparation method and application, invisible fluorescent inkjet material, by mass parts, including the following components: ultraviolet excitation fluorescent material 1-10 parts, adhesive 15-30 parts, penetration control agent 0.5-5 parts, heat-resistant stabilizer 0.1-2 parts, rheological modifier 0.1-1 part, water 50-85 parts;The penetration control agent includes silane coupling agent and high molecular penetration agent, and the mass ratio of silane coupling agent and high molecular penetration agent is 1-5:5-1;High molecular penetration agent is selected from polyethylene glycol, hydroxypropyl methyl cellulose or polyvinylpyrrolidone.The information of inkjet is invisible under visible light, and is developed clearly under specific wavelength ultraviolet light.