The key factors for the success of the hottest dig

  • Detail

The key factor for the success of digital printing

although the new generation of digital printers can effectively replace the role of offset press, the paper factor is often ignored in the process of high-tech electronic printing

at present, the emerging digital environment makes paper manufacturers face different methods from the traditional combination of paper, ink and toner. Fortunately, manufacturers have recognized and understood the role of paper in the high-quality and high-resolution prints that users want

after understanding the importance of paper smoothness, gram weight, whiteness, fiber size and other attributes, paper manufacturers have produced a new generation of digital printing paper for the needs of digital printing. These new paper products specially developed for digital document output devices help digital devices print products with high printing quality that people expect

the development of digital paper

in the application of short version live copies, laser printers have gradually surpassed copying and traditional offset printing and become the most common way. In the copy process, the transferred image is only 70% of the original density; Laser printers can produce clearer and more professional images. The initial driving force of this change is the change in the office environment from "printing to distribution" to "distribution to printing". Different from printing in a certain place and then distributing, the company sends electronic documents to the corresponding personnel. These personnel will print as needed

in the traditional offset printing department, a laser printer will now be placed next to the offset press. After receiving live parts, the person in charge will decide whether to use offset press or printer for production according to the production cycle of live parts and the economic situation affected by data changes. Because according to the current requirements of people for color, book production and high-grade printing quality, paper should also be able to meet the needs of high-grade laser printing

when the demand for laser printers continues to rise, inkjet printers have also become popular. Until now, most of the consumption of inkjet printing paper is concentrated in the SOHO market. Inkjet printer manufacturers are trying to increase the monochrome printing speed to 15ppm, so that they can become an option for network printing in the office environment. In addition to the low cost of equipment, the cost of consumables of inkjet printers is expected to be lower than that of laser printers in black-and-white and color output. Low cost, high speed and color acceptability may promote the application of inkjet printers in the office environment

the use of laser printers and multifunctional equipment has led to the vigorous development of paper. Digital paper is growing in both quantity and variety

real color except for the production of electronic universal testing machine tensile testing machine

before 1996, there was no equipment with a speed of "higher than 25ppm" in any equipment for making color digital images, so the amount of paper used was small. However, with the emergence of new equipment, the market shortage increased rapidly. It is expected that the consequences will be very serious by 2001, and the annual amount of paper used will reach 50000 tons, with an annual growth rate of 90%

the new generation of digital color printing machines, including Xerox docucolor40 and canoncl1000, provide color output function, and can compete with offset printing machines, and provide more options for short version printing. The new "high-quality laser printing paper" is the preferred substrate for these devices

the smoothness and formation of paper are the key factors to obtain high-resolution printing. When output at a resolution of 600*600dpi, there are 36000 points per square inch. The latest digital printing machine can print with dots of various sizes in order to improve the quality of printed products. A flat and smooth printing surface can show fine point changes, which is relatively high in printing quality; On the surface of a relatively rough standard copy paper, fine dots will be lost, which may reduce the quality of printing. For color printing, customers generally prefer the image effect of measuring the stress change on the sample with large contrast

in the field of digital color, there is also a kind of thick paper used as data or book cover, which is also a very difficult thing. Because the book cover that the final customer wants is very strong, but most digital printing machines have certain adaptability to the thickness of paper. Until recently, the thickest cover paper was only 60 pounds. Comparatively speaking, the cover paper suitable for offset press is 120 pounds. Digital printer manufacturers are improving their equipment by widening the passage of the paper feeding section so that they can pass through thicker paper. The latest color digital printers can deliver 65 pounds, 80 pounds or more of paper

Basic black-and-white prints

in the field of black-and-white printing, the on-demand printing capacity of digital printing machines can be used for the production of books, manuals, product catalogs and other products that used to be produced by offset printing machines. These products can be printed on both sides. Therefore, there is a great demand for paper with low transmittance in the offset printing market. Now, laser opaque paper is called "digital opaque paper" because it is used in digital printers. The suppliers of digital printing are inspired by the offset printing industry and provide a large number of digital opaque paper

in this way, digital opaque paper emerged as a new type of paper. Impervious Amway 1 has always been an invisible "champion". Clear paper is a product that uses opaque fillers to increase the opacity of paper without increasing the weight of paper. These papers were originally required by the publishing market. Because publishers need paper not only to ensure a certain opacity, but also to maintain the lowest weight and volume, in order to reduce transportation costs. These papers soon transitioned to the laser printed sheet fed market. In addition to laser printers, printing plants and commercial printers of enterprises will also have the same publishing requirements. In any case, the traditional offset paper has to be adjusted to meet the requirements of laser printing

in the offset printing industry, printing suppliers also have lighter weight offset opaque paper available. Therefore, there are many applications to order light-weight digital printing paper. However, this kind of paper has certain natural defects in the design of the paper transfer path of the digital printing machine, that is, there is a lightest limit to the weight of paper on the current equipment. Generally, most digital sheet fed printers use 20 pounds of bond paper (50 pounds of text paper) as the lightest gram of paper. At present, 18 pounds is the lightest gram of sheet fed paper that can be accepted by fast and digital printing equipment. However, many customers still want lighter paper, which poses new challenges for paper makers

with the development of science and technology, it is now allowed to use non perforated web paper for web fed laser printers. It is a very strong trend to use web fed printers as substitutes for high-speed sheet fed printers, especially monochrome printers with speeds above 80ppm. The appearance of non perforated web reduces the amount of paper used by printers when printing with perforated web. It is predicted that by the end of 2000, 40% of the paper consumed by high-speed laser printers will be web paper

because of the technical transformation of this equipment, the manufacturer now provides the traditional single sheet electrostatic imaging paper and laser printing paper in the new configuration: rotating on the template at the roller position. Georgia Pacific's "imaging roller" is an example. For this new special roller form, there can be five kinds of large-size sheet fed products printed

manufacturers of digital color printers have also responded to the new requirements of digital web color printers. For example, for Xeikon digital printing machine, all web paper used on the printing machine must pass the certification of Xeikon's qualification procedure to establish the corresponding "script file", which contains more than 20 variables of key printing machines. When using this kind of paper on this digital printer, the operator can take the variable setting in this document as the starting point to adjust the equipment and printing process to help optimize the printing process. This scripting process has resulted in many existing products being reworked so that new types of paper can support all Xeikon digital printers. These devices include Xeikon DCP 32 and 50D, Agfa Chromapress, Xerox docucolor 70 and 100, IBM infocolor 70 and 100

future trend of digital paper

digital printing machines such as Xeikon can reproduce high-quality commercial colors, so they are participating in the competition in the offset printing market. The printing width of Xeikon's general equipment is limited to 12.5 inches or less. In January, 1999, Xeikon launched its 50D digital printing machine with a width of 19.5 inches. In this way, the digital printing machine has become an alternative to large format offset printing equipment. As a result, some forecasters believe that a large number of papers supporting such devices will appear. However, the growth base of this market is very small, so the consumption in these years will not be very large

in short, if we closely follow the entire non coated paper market, we will find that with the development of new equipment and the improvement of new technology, there will be some very important changes. These changes provide the greatest value-added opportunities for paper suppliers, and printers can also provide more creative solutions according to customers' needs

Copyright © 2011 JIN SHI