1 catagories
CTP plate technology is divided into: sensitive CTP plate technology and thermal CTP plate technology . CTP plate photographic system which includes silver diffusion plate, high sensitivity resin plates and silver / PS version of the composite plate ; thermal CTP plate system includes a thermal crosslinking plate, hot plate and ablation heat transfer plates and so on.
Thermal CTP plate technology is the most mature and most stable and best -plate technology .
Now there are four CTP version on the market , namely: heat-sensitive , silver -based , light polymeric and free treatment type . They are detailed below .
2 Thermal
Thermal CTP plate : it is now the main melt solution type and thermal crosslinking type two.
Features thermal CTP plate
( 1 ) thermal CTP plate for low natural light sensitivity infrared laser exposure , it can be operated under bright room conditions .
(2 ) to generate thermal imaging media , the heat must reach the initial threshold, the initial threshold value and higher than the thermal energy does not change the shape of the network is the only technique available to predict the outcome control , easy quality control, stable quality publishing , and the exposure the printed version can be extended to six months and then go to the developer , do not have the slightest impact on the quality of the plate .
Outlets ( 3 ) thermal plate reproducibility , high -resolution and network edge sharp and clear , easy to reach equilibrium printing ink , with good printability , and through plate baked version of the anti-Indian forces up to 100 Versamark more.
3 silver type
Silver CTP plate including silver and silver salt diffusion transfer version PS version with two types of composite plates .
4 photopolymerizable
Features photopolymerizable CTP plate
( 1 ) a thin layer of light- sensitive polymeric CTP plate , the graphic part and the blank part of the capital in the same plane , belonging to the traditional offset printing type .
( 2 ) photopolymerization CTP plate violet laser diode can be selected (410nm), an argon ion laser (488nm), FDYAG laser (532nm), infrared laser diodes (830nm) light-sensitive material , such as a different version of the source . Can no longer operate under the next room !
5 free treatment
Brief introduction
Broadly speaking, refers to the plate after plate-making equipment in the direct exposure imaging , without any post-processing step , the machine can be printed , of course, without chemical development , wash , etc., is to avoid dealing with the media in the true sense ; from in a narrow sense , refers to the plate in the immediate post- exposure imaging platesetter without chemical developing process , but there will still be individual non- chemical treatment processes , such as plate ablative removal of litter , such as plastic coating to protect the processing .
Category:
Thermal ablation plate, plate polar conversion technology and hot-melt technology plates.
Thermal ablation is usually double- coated plates , the bottom of the pro- ink , the upper hydrophilic layer exposed to the hydrophilic layer ablation laser energy , exposing pro ink to form a graphic ; . Unexposed portions remain the hydrophilic nature of the layout blank. thermal ablation technique in practical application was not successful, mainly because of the dust and debris generated after ablation may affect the accuracy of optical components platesetter , and are detrimental to health and the environment . again who ablation plate blank part of the hydrophilic coating, ink balance control and anti-Indian forces , etc. , and not the traditional PS plate and CTP plate .
A polar conversion technology free treatment plate monolayer coating, which is a hydrophilic drug film ( or lipophilic ) , after the exposure , change the polarity of the drug layer , into a lipophilic ( or hydrophilic ) , the exposed portion of the plate graphic ( or blank ) sections. these plates do not need any treatment after exposure can be printed directly on the machine , but because of its print control and anti-Indian forces , such as not ideal , therefore , from large-scale commercial application is still some distance.
Advantage
Free CTP plate processing has many advantages . Exemption process to improve the efficiency of production , without chemical development , reducing energy consumption and the number of exposure , and reduce the overall cost of the plate , shortening the platemaking process cycle , in today's growing emphasis on environmental protection , it advantages - no pollution to the environment , although more pronounced free treatment than conventional plate CTP plate prices , the overall cost of the plate , the former can save 35% of the total cost , so each plate to avoid dealing with the price side . high will be forgiven . cited Kodak CTP plate Kodak Capricorn GT Kodak thermal plates GT version is currently the largest selling Kodak CTP plates in the domestic market .
6T98 version
1 , no bake version , you can get 400,000 printed volume
2 , special liquid, and clean working environment
7 Kodak XD
1, Electra XD plates in prepress plate-making and printing process have a very good performance can be obtained without baked version of the long print runs . This plate imaging , rinse and printing have shown ultra-high stability and tolerance . Exclusive patented polymer plate design ensures long resistance to ultra-high stability and dot printed on the press , whenever can achieve superior color control and accurate copy .
2, Electra XD plates to achieve ultra- sharp detail and stability for the long version of the AM and FM printing, plate making and reduce duplication for version due to wear and tear caused by the network and out to maximize printing capacity without pre- hot , fast imaging and rinse better maximize prepress plate-making machine capacity , length version is ideal for high-quality commercial printing and publishers .
3, Electra XD Thermal Plate is compatible with most alcohol dampening system , along with a good anti- corrosive chemicals printing , printing in ensuring a high degree of tolerance while minimizing waste of paper and ink. Good resistance to chemical corrosion and high printing anti-Indian forces Electra XD plates only under challenging environmental conditions before printing needs baked version , such as UV ink printing, rough printing paper, printing chemicals in different conditions , super- long print edition.
8 domestic demand
CTP technology after years of development , the maturing of technology and quality , is currently in the stage of large-scale and popularity installed . Compared with traditional inkjet CTP plate plate-making process , eliminating the need for a film, artificial imposition, proofing , repair and other processes dirty , the whole process is digital prepress processes, improve the speed and quality , eliminating the need for film prices , the real cost reduction achieved .
However, a suitable CTP system needs starting from the packaging and printing features , packaging printing enterprises solve a series of problems that may arise , in order to meet the needs of packaging and printing business. CTP technology into the packaging and printing companies , you need to solve the following problems :
Packaging prepress client file checks , as well as imposition and trapping
For external customer files , because the production of complex and diverse software versions and a variety of treatment effect, will bring opportunities for error output prepress , workflow systems need to have a variety of error checking mechanism , the possibility of errors and to the enterprise losses to a minimum . Meanwhile packaging enterprises in the traditional production process, manual inspection trapping , imposition manual , time-consuming , and inefficient. CTP prepress system to assist personnel to solve common packaging prepress trapping , as well as a large version of the ink conversion, pre- fight problems such as fly .
CTF copy of the film and the traditional process compatibility
Many printing and packaging companies still use a certain percentage of live parts CTF copy of the film , the two processes exist simultaneously inevitable condition , which requires CTP CTP system can solve the two processes are compatible with CTF issues will not arise CTF printed copy differences in color printing and CTP platemaking and other aspects . Packaging plant where more reprints , focusing on network restore stability.
This is an obstacle on the packaging printing plant CTP , often leaving pieces out to customers when signing with the film repeatedly recognized proofing , CTP repeatedly published worry , there are differences between each network reduction . CTP system shall be combined with the stability of the equipment , high-precision , professional color service assurance process repeatedly publishing outlets restore stability , color consistency reprinted many times .
Concerned in the production of packaging and printing spot color reproduction , color consistency
Compared to the level of color reproduction and neutral gray control, packaging printing enterprises pay more attention to the spot color reproduction and color consistency . This requires a CTP system with color management process control module is equipped with a hardware device is not only simple , but also need to provide color debugging and quality control training services , to solve the actual production color consistency problems.
Digital proofing proofing process combined with the machine . Mass production, the need for production control standards and norms , and the packing plant currently proofing a considerable portion of the press proofing, customer signature recognition. Color management as part of the CTP system , through the establishment of norms and standards require a series of production processes , to ensure the stability of production, digital proofing and printing to ensure color consistency .
Professional , timely and localized service needs
Since most of the former CTP no prepress packaging companies , lacks experience , after the introduction of CTP technology , with a strong need for vendor integrated services capabilities, need to have a professional , timely and localized features.
Demand for safe production of anti-counterfeiting
For cigarette , wine bags, cosmetics packaging printing companies can have to mention fake fake, use some anti-counterfeiting technology is essential, but also for improving the product more added value , so as to provide customers with more upstream multi- added services.