Haomei Aluminum

  CTP (Computer to Print) plates are a special material used in the printing industry to produce high quality printing plates. The CTP plates thickness range is between 0.13-0.40mm. In practice, common plate thicknesses include 0.15mm, 0.20mm, 0.24mm and 0.30mm. The CTP plates width ranges between 650-1420mm. The exact width depends on the specifications of the plate and the requirements of the machine. The allowable deviation in thickness is +0.003mm and in width +0.5mm. CTP plates are usually available in various sizes, 560*670, 1030*770, 400*525, 650*550, 450*370, 525*419, 1030*790, 576*720, 715*895, 680*608, 525*459, 890*609, etc. The following are some common CTP plates sizes : 1, 650mm x 550mm for 2-page presses 2, 800mm x 600mm: This is a smaller CTP plate size, usually used for small presses or quick printing equipment. 3, 1030mm x 800mm: This is a common CTP plate size for small to medium sized presses such as one or two color presses. 4, 1160mm x 9...

  There are several outstanding CTP plates manufacturers in china who not only have advanced production lines and technologies, but also provide competitive products. HC Aluminum is one of the leading CTP plates manufacturers in china, our company has advanced fully automatic printing plate production line, which mainly produces positive type PS plate, thermal CTP plate, CTCP plate and processless plate with stable quality and able to meet different printing demands. Adopting advanced technologies such as reel-type non-stop splicing, automatic plate take-up and automatic tension adjustment system to ensure product quality. With ISO quality/environmental/health and safety management system certification, patent certificate, etc., we have strong technical strength. CTP plate is the material used to make CTP printing plates, which usually consists of an aluminum base material and a special photopolymer coating. As a leading CTP plates manufacturer in china, H...

  CTP plate, or Computer-to-Plate, is a special plate used in the printing industry. It allows the figures, pictures or pages edited in the electronic pre-press processing system or color desktop system to be transferred directly to the printing machine for printing without the need of subsequent plate making process. CTP plate is a high-end product of PS plate, widely used in offset printing plates such as sun-picture PS plate, heat-sensitive CTP plate, light-sensitive CTP plate, UV-CTP plate, and so on. Types of CTP plate : There are four main types of CTP plates classified according to the imaging principle of plate making: photographic system CTP plates, thermal system CTP plates, violet laser system CTP plates and other system CTP plates. Among them, the photosensitive system CTP plate includes silver salt diffusion plate, high sensitivity resin plate and silver salt/PS plate composite plate; the thermal system CTP plate includes thermal cross-linking ...

  There are various types of CTP plates , which can be divided according to different classification criteria. From the aspect of plate varieties, CTP plates can be mainly divided into silver salt CTP plates, thermal CTP plates, photopolymerized resin CTP plates and polyester plates (non-metallic plate base). Among them, the thermal CTP plates can be divided into ablative thermal CTP plates and non-ablative thermal CTP plates. types of ctp plates From the point of view of plate making and imaging principle, CTP plate s  mainly has photosensitive system CTP plates, heat-sensitive system CTP plates, violet laser system CTP plates and other system CTP plates.   In addition, from the aspect of exposure system, CTP plates can be divided into four major categories: inner drum type, outer drum type, flat plate type and curve type. Internal drum and external drum type is the most used type, flat type is mainly used in newspapers an...

With the increasing maturity and the rapid development of CTP technology, as well as the declining of price, CTP technology has been more and more welcomed by the majority of printing practitioners, usage of CTP plates have the potential trend to catch up with the traditional PS plate. The overall requirements of the printing plate is very high, especially the current CTP plate is mostly used for high-grade color printing plate, to ensure the quality of the plate, the plate based apparent quality is the premise. The characteristic of CTP technology is the quality of CTP based plate, such as the apparent quality, physical property and electrolytic performance. The aluminum plate base is widely used according to CTP plate technical requirement. The difference between CTP plates and PS plate on the apparent properties of aluminum plate base are as follows. The basic appearance requirements of the aluminum base plate is clean and smooth, no cracks, corrosion pits, air vents, scratches,...

The differences between CTP plate and PS plate on the dimension requirement of aluminum plate base are about the thickness, the width and the longitudinal and transverse uniformity. 1) the thickness difference of aluminum base plate. The thickness of aluminum plate base for CTP plate is generally about 0.280mm, which is slightly thicker than that of PS plate produced at present (the thickness of PS base plate is about 0.270mm). Aluminum base plate is thicker, the plate stiffness will be better, not easy to bending. 2) the difference of width. CTP plate production in China is generally not install the line edge cutting device, so the width tolerance is required less than 0.5mm, the best without tolerance. The cutting quality has clear requirements, both sides should not have burr, lotus leaf edge after slitting. 3) longitudinal and transverse uniformity of aluminum base plate. The longitudinal and transverse thickness tolerances of aluminum base plate shall be less than 0.005mm. T...