7 results about "Digital textile printing" patented technology

The invention discloses a DTG printing method and system based on line scanning camera visual deformation and rigid body positioning, and relates to the technical field of digital textile printing. Dynamic images are collected in real time through a line scanning camera, and image coordinates are mapped to a printing equipment world coordinate system through a coordinate calibration module in combination with a calibration matrix; real-time error compensation is used for dynamically eliminating coordinate offset, and a dual-mode positioning module intelligently switches a positioning strategy; rigid body positioning realizes accurate positioning of non-deformation materials through template matching; deformation positioning performs adaptive compensation based on feature point extraction and grid deformation analysis, an image mapping module inversely corrects target pattern deformation according to a positioning result to generate a high-precision TIF image, the high-precision TIF image is converted into a printing instruction through an RIP processing module, and an integrated control module performs one-key triggering and dynamic parameter configuration and performs printing on a target pattern. The collection efficiency is optimized through light source synchronization and self-adaptive triggering, the system stability is improved in combination with a template database and an exception handling module, and high-quality printing of complex deformation materials is achieved.

The invention discloses a double-station printing method and system based on deformation positioning and rigid body positioning, and relates to the technical field of digital textile printing. Through double-station switching control, a target printing platen is selected according to production requirements, and a corresponding line scanning camera is triggered to collect a dynamic image; pixel coordinates of collected images are converted to a printing equipment world coordinate system through coordinate calibration, precise positioning is achieved, the system can recognize material deformation characteristics, and a positioning mode is dynamically selected; according to the method, surface feature points are extracted from a deformed material to construct a non-rigid deformation grid model, reverse correction is performed on a target pattern deformation quantity according to a positioning result to generate a correction image adaptive to material deformation, then the correction image is converted into a printing instruction through RIP processing, and printing equipment is synchronously triggered to execute printing, so that the printing precision and efficiency are improved, and the printing quality is improved. And the efficient production requirement is met.

The present invention discloses a high-definition nylon digital printing process, belonging to the field of digital textile printing technology. The process includes fabric pretreatment and inkjet printing. The treatment solution comprises the following components, by weight: 91-93 parts water, 3-4 parts hyperbranched water-soluble polymer, 4-5 parts guar gum, 3-4 parts urea, 0.4-0.6 parts inorganic salt, and 0.001-0.1 parts acidity regulator. The pH value of the treatment solution is 4.2-4.8. The hyperbranched water-soluble polymer is formed by hyperbranched polymerization of a monomer 1 containing a secondary amine group and a monomer 2 containing pyrrolidone. The treatment solution used in the nylon digital printing process provided by the present invention contains a hyperbranched water-soluble polymer having amino and pyrrolidone structures. The two groups act on acid dye molecules and nylon fibers, respectively. The nylon digital printing product obtained after treatment with the treatment solution has the advantages of high definition, good levelness, and high color fastness.

The invention discloses an automatic visual positioning printing method and system based on a double-platen printer, and relates to the technical field of digital textile printing, a double-platen control module is responsible for switching between two printing platens, and an image acquisition module comprises two area-array cameras used for acquiring material dynamic images; the image processing module comprises a calibration unit and a positioning unit, the positioning unit dynamically selects a rigid body or deformation positioning mode according to material deformation characteristics, the positioning mapping module carries out deformation correction on a pattern according to a positioning result and generates a TIF image, and the RIP processing module converts the TIF image into a printing instruction stream; according to the automatic vision positioning printing method and system based on the double-platen printer, the manual dependence is reduced, and the automatic vision positioning printing method and system based on the double-platen printer are suitable for modern flexible and high-throughput production requirements.

The present invention relates to a fiber thermal transfer method using reactive ink transfer paper, and relates to digital printing, by means of a digital transfer printing device such as an inkjet printer, utilizing a computer from the design planning stage. The present invention, being a dry digital textile printing method with no steam and thickener used, is a waterless textile printing method which is ecofriendly.

This digital textile printing system for knit fabric comprises: a transport device including a transport belt that receives knit fabric at a supply position and transports the received knit fabric along a transport path while supporting the received knit fabric on an upper surface; a Webster guide that receives the knit fabric from the outside, spreads the received knit fabric, and supplies the knit fabric to the transport belt; and a press roller that is disposed at the supply position and guides the knit fabric supplied from the Webster guide to the upper surface of the transport belt. The Webster guide includes: an unwinder unit that spreads the knit fabric received from the outside; a fabric supply unit that supplies the knit fabric spread by the unwinder unit to the transport belt; and a control unit that controls operation of the fabric supply unit. The Webster guide may supply the knit fabric to the supply position from a position higher than the press roller.

The utility model relates to a guide belt cloth pressing platform device for digital textile printing equipment, which aims at solving the technical problem that when the running speed of a current guide belt is increased, a pressing roller is likely to slip with cloth due to insufficient pressure, and consequently the cloth is displaced or locally wrinkled, and comprises a supporting frame, an ejector rod and a cloth pressing frame, two rotating discs are fixedly connected to the surface of the ejector rod, six telescopic grooves are formed in the outer side walls of the rotating discs in a circumferential array mode, telescopic blocks are slidably connected to the inner sides of the telescopic grooves, third springs are fixedly connected between the telescopic blocks and the inner walls of the telescopic grooves, and shifting discs are fixedly connected to the outer ends of the telescopic blocks. According to the centrifugal cloth feeding device, the stirring block and the arc-shaped block are unfolded through centrifugation, the extrusion rod and the cloth pressing frame below the stirring block and the arc-shaped block are stirred, slipping is reduced, and the stability in the cloth feeding process is improved.