How to choose screen printing computer direct prod

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How to choose the direct production technology of printing computer

for printers with various devices from low-end to high-end, they are more willing to use positive film, which is not only economical but also effective. Although the progress of digital technology seems to make the application of positive films slightly obsolete, many printers still affirm the characteristics and value of positive films. Although the price of printers on the market is attractive, when you plan to choose film operation, the price of consumables such as film, ink, toner, necessary chemicals and RIP software must also be considered

the first masking film introduced into the field of image art is rubylith invented by ulano company. Masking film is a kind of film (usually red or yellow) that is finely cut and pasted on a clean polyester material. It can be cut by hand, but it is usually cut by computer engraving machine. The computer engraving machine can easily and quickly cut text and field areas

unfortunately, halftones cannot be accurately reproduced by using masking films. At the same time, the cutting process is time-consuming and increases financial and human resources. The price of masking film per square meter is about $2.40, so it is relatively economical. Cutting can be done by engraving machines, which are usually used to cut B in the label industry. 5. Alkenyl words are not expensive before experimental operation. The price of a 66 cm (26 inch) wide engraving machine is about US $2600

making positive film with laser printer is a primary and economic choice. The image size of the current model is 33cm 89cm (13 inches 35 inches). Laser printers use electrostatic imaging. The laser generator can use the laser beam to retain the electrostatic charge in some areas according to the content of the pattern, and the dry toner will adhere to the charged area on the induction drum, so as to effectively generate an image on the induction drum. There are two very hot rollers close together inside the laser printer. They heat the paper passing between them to melt the toner and bond it to the surface of the medium. Heat is a factor that cannot be ignored in the positioning sleeve of multicolor printing, which can change the size of printing materials. Polyester film has good stability, but its cost is also slightly higher

if you want to use a laser printer to print halftone, you need the rip or postscript driver provided by the manufacturer. Postscript driver can simulate halftone device in image application. However, if you have strict requirements for halftone, this is not the best choice

the maximum resolution of the laser printer is 2400dpi, and it can complete a standard page job in a short time. The advantages of laser system include: 1. The price of consumables is relatively cheap, such as kraft paper and toner. 2. No chemicals need to be added in the production process. The disadvantage is that the maximum D-max value that can be achieved by using them is about 3.5 D, so using them to make plates cannot achieve the desired effect

another disadvantage of laser sectioning is that the D-min value of non image areas is relatively high (1.0 d). Generally, if the toner in the non image area is thick, the image area may be short of ink. If the toner in this area is thin, you can use spray to appropriately increase the density, so as to improve the positive image quality

the price of a new laser printer is about $2000 to $4000, but the price of the old printer will be much cheaper. Printing halftone images must ensure printer compatibility with postscript. Compared with the product quality, if your customers care more about the product price, the laser printer can meet this requirement. At the end of the test, it can automatically calculate the Zui strength, upper and lower compliance strength, lag ring method, step-by-step approach method, and non proportional extension strength. If you want to print realistic images higher than 85 LPI and exquisite halftone images, laser printing usually cannot meet the requirements, such as positioning and registration, material properties and other important aspects. Inkjet printing technology has become another option for making positive films. This technology is very popular because of its low starting cost, no chemical process and easy to master by users. For clothing decoration personnel, or produce low line number halftone, and the density value reaches D-max 4.6 and d-min 07 operators, inkjet printing can provide satisfactory resolution. The production density reaches D-max 4.6 and d-min 07 film needs RIP software

without the help of RIP software, the inkjet printer can not operate alone to produce the required density value. The disadvantages of inkjet printing include: film and ink costs; Slow production speed; Compared with laser Imagesetter, the image produced cannot reach extremely high resolution; The print head may cause a waste of ink and time

there are several desktop models priced at several hundred dollars, including Epson and other Yang image production equipment. Epson R1800 and R2400 have a resolution (DPI) of 57601440 and a maximum print size of 33 cm. What are the advantages and applications of universal machines? 111 C Huafeng polyurethane curing track bed project has completed the experiment of freight line M. The maximum resolution (DPI) of the Epson 4800 is 28801440, and the maximum width that can be printed is 43cm. If the width of the film is more than 43 cm, there are several wide width inkjet devices that can meet your requirements. For example, the Quadra aspect system of MacDermid autotype can provide printing of three widths: 137 cm, 162 cm and 188 cm

laser Phototypesetter is a printing device that outputs high-precision and high-resolution images and words on film or paper. At present, the resolution of this technology can reach 1200 DPI to 4800 DPI. After the film is sensitized, it needs to be washed by the punching machine, and chemicals need to be added at the same time. Using this technology can ensure the quality and sharpness of the film, which is unmatched by other technologies. Laser phototypesetting machine version has also been used in the field of offset printing. Now most offset printing has adopted computer direct plate making (CTP), which uses digital technology to transfer images to the printing plate, thus eliminating the application of film

the material used in the thermal imagesetter is film coated with thermal substances. When the film passes through the print head, the heater causes the film to change color when heated. The positive film output by this technology has high resolution and can reach the density values of d-min.07 and D-max 4.0

one of the biggest advantages of thermal technology is that only one kind of consumables (film) is needed before printing, which is different from other systems that need ink, toner, chemicals and film. In addition, the image printed on the film will not volatilize, nor will it be erased or stained. Compared with other technologies, it is not affected by water and weather

in addition, the cost of thermal imaging is not affected by the printing area. The cost of printing a full page is the same as that of printing 5% of the area. The use of thermal equipment can also achieve accurate registration in multicolor printing operations. Their only disadvantage is the sensitivity of the print head and the dot matrix heater on the print head. When these dots are driven, they produce a pattern corresponding to the heating element on the thermal paper. Once a small dot is damaged, it is difficult to repair, which should be judged according to the condition of the film, and the print head may need to be replaced. The output width of Oyo instruments LP thermal imagesetter is 36cm ~ 137cm (14.25 inches -54 inches), and the price ranges from US $10000 to US $85000. The average film cost for thermal imagesetters is $21 per square meter ($1.95 per square foot)

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