58results about How to "Improve plate making efficiency" patented technology

The invention relates to the technical field of image processing, and discloses an image data processing method and system in the plate making process of Hunan embroidery, so as to improve the plate making efficiency and the reuse rate of resources. The method includes: scanning to obtain a hand-embroidered pattern scan in a ratio of 1:1 corresponding to the artificial hand-embroidery pattern, dividing image areas of different colors into different layers according to the RGB values ​​of the hand-embroidery pattern scan, and dividing the same color image area into different layers. The image area is divided into the same layer; image recognition processing is performed on each layer, and during the recognition process of any layer, the stitches, connecting lines and texture features of the layer are recognized; The stitch points are mapped to the trend curve of the boundary contour after size scaling, and the connection lines between the stitch points after scaling are reconstructed; then the connection lines that exceed the maximum spacing range of the embroidery machine are divided; finally, the scaled layers are divided Superimpose to obtain the plate-making data file for the embroidery machine.

The invention provides a direct plate-making method of 3D rapid prototyping printing of a flexible plate integrated with a printing plate and a plate roller. The steps are as follows: using 3D printing to make a plate, first use three-dimensional software to design a pre-printed plate, and then select the printing material , use a 3D printer to print out the printed material and the graphics on the printed page, and then get a flexographic plate with an integrated printing plate and plate roller. The method of the present invention designs the printing plate and graphics into a cylindrical shape directly in the 3D design drawing, saves installation steps, does not require labor and labor, improves operability and safety, does not cause bending deformation caused by installation, and improves accuracy. At the same time, this method saves the compensation step of the pre-press deformation, wraps the antenna graphic on the printing plate, integrates the graphic and printing plate, and the printing plate and the cylinder. The content of the graphic and text is fixed, and the accuracy of graphic and text duplication is improved. The method of the present invention will create a new chapter in the flexographic plate making technology of the integration of the printing plate and the plate roller, and fill the domestic blank.

The invention relates to a plate feeding device of a nanometer material computer to plate and a control method for the plate feeding device. A driving motor of a first roller in the device is used for receiving a control signal to drive a material plate to enter the plate feeding device; a positioning device is used for positioning the material plate in the axial direction of a drum; a control unit is used for receiving a position feedback signal of the driving motor of the first roller and outputting the control signal to a control loop of a head clip cylinder; and the control unit is used for outputting the control signal to a control loop of a tail clip cylinder according to a position signal fed back by a printing unit. The method comprises the following steps of: starting the drum to rotate to an original point and starting a pneumatic unit; starting the first roller to roll the material plate and positioning the material plate at a first detection position; when the material plate reaches a second detection position, sending a rotation position signal of the first roller to the control unit; when the material plate reaches a head clip position, turning off a head clip; and when the material plate reaches a tail clip position, turning off a tail clip to end a plate feeding process. According to the plate feeding device of the nanometer material computer to plate, the material plate can be totally rolled onto the drum, so that a printing face is solid and smooth, positioning is accurate, and the operating accuracy and the control precision of the whole nanometer material computer to plate are ensured.

A method fo r preparing woodcut by computer to simulate manual carving features that a group of vector lines with different widthes is used to map the gray scales of traditional woodcut. Its advantage is high productivity.

The invention relates to the technical field of printing, and particularly discloses ultraviolet offset printing continuous machine white ink and a preparation method thereof. The ultraviolet offset printing continuous machine white ink is prepared from, by mass, 15.0%-25.0% of polyester acrylate oligomer, 10.0%-20.0% of thermoplastic acrylic resin, 40.0%-50.0% of titanium dioxide, 2.0%-3.0% of a dispersing agent, 3.0%-5.0% of a photoinitiator and 10.0%-20.0% of monomers. According to the ultraviolet offset printing continuous machine white ink, the covering power of traditional ultraviolet screen printing ink is compatible with the high-speed printing characteristics of ultraviolet offset printing ink, not only is the covering effect of the UV screen printing ink achieved, but also the high-speed cooperating requirement of the UV offset printing ink is achieved.