The Characteristics Of Digital Printing Papers And R & D (b) - Digital Printing, Paper, Printing

(5) Non-coated paper Rough surface and with irregular pores

, if the imaging mechanism of electrostatic dry powder printing of this paper (mostly non-wood pulp paper), text and lines also Fate is true, the field density of an unsatisfactory image resolution is not high. Solution is to use liquid ink, liquid ink can be attached to the surface of paper, toner will not be as solid as falling into the pores of the paper-gap disappears. However, the formation of liquid ink ink film less adsorption capacity to form the image of the fixation fastness of ink low, in order to solve this problem, a layer of paper coated with rubber.

(6) Paper Moisture Digital printing paper sensitive to the environment. In the electrostatic powder imaging Wei, toner fixation are heated to 120? 150 while the paper to lose water, usually paper, the relative humidity from 50% to 15% lower 20%. Since the loss of water to make paper brittle, from lotus leaf, when the folding easy to break or tear. To solve this problem the Secretary, the printing system is prepared to do number relative humidity of 30:6 in the paper or in air-conditioned are fairly paper.

(7) of production process Digital printing paper production, generally use the drift from softwood kraft pulp and bleached hardwood? Wood kraft pulp with each other, made of paper with good strength, opacity, loose thickness, Ting degree and whiteness, and homogeneous, paper surface smooth, clean, no fiber bundles spots and dust, lint-free fall powder, good optical properties and printing properties. In the manufacturing process, the general also add some filler such as precipitated calcium carbonate.

Digital printing paper and neutral neutral papermaking sizing process, and the corresponding use of a variety of chemical agents. For non-coated inkjet printing paper, rational use of sizing agent, can get different effects. Retention of digital printing papers produced in another common additive, but the amount of discomfort, often affect the evenness of paper. Such as recycled fiber pulp and paper, to compensate for fiber strong enough to use starch or synthetic resin reinforcing agent to improve the strength of the sheet.

Digital printing papers are mostly small-size paper, on the paper surface bonding strength, cleanliness and difference of both sides demanding. Paper Machine should be the top of the advanced network shaper to minimize the difference between both sides of the paper. Should also be soft calendar, in order to get a good smoothness. To prevent the paper-based flash Linting and entrainment, debris, paper, film front I asked a sharp cutter.

The development of digital printing paper

1. Expand the scope of substrates

Present, digital web press can print a variety of non-coated paper, coated paper, PET material, transparent paper, labels and films and other substrates. Substrate scope, no doubt to the user after purchase of a digital printing press widened the scope of the printing business.

But in fact the choice is limited, digital printers are also being prudent use of new materials, equipment Chamber of Commerce recommends that users use some high-end paper products, and most printers are only a few paper production using a specific commercial products. The current digital printing press manufacturers in determining the substrate before the substrate is usually appropriate to conduct experiments, wholesalers get their approval before the sale of these substrates. Maturity of the technology market in the paper, the digital printer manufacturers do not need to do these experiments, it can cost.

2. Improve the adaptability of paper

It is understood, HP1ndigoE-Print1000SR format of double-sided printed paper was given 100 ~ 340g/m2, XeikonDCP/500D paper format digital printing presses for the 50 ~ 110cm, its quantification is 80? 270g/m2 the paper surface go though the same, but its performance is not the same. HPndigo. Is the liquid ink, paper, ink liquid surface to meet the transfer requirements, or may not result in part of the Photo printing, or part of the graphic is easy to erase. Therefore, the specific terms of digital printing requires special paper Variety.

3. Lower paper prices Digital printer paper stock generally less, in most cases is based on user needs an order or contact with wholesalers, next day delivery; India is not large, generally about 500 printed. As the digital printing paper cost only a fraction of the cost, so users are not particularly concerned about the prices of paper, more attention to the reliability of suppliers. With the increase of the amount of paper and manufacturer of R & D expenses deduction, digital printing is expected to further reduce the price of paper.

From the printer's point of view, the user now only willing to digital printing paper from stable suppliers to buy paper, therefore, digital printing paper market is not optimistic. In recent years, digital printing paper market is growing, because the printer is always a high price to buy the digital printing paper, so wholesalers will increasingly interested in this market and offer more products.

Currently, many large international paper manufacturers are committed to the development of different presses for paper, and new products in the different devices on the printing experiments, to constantly improve and refine the performance of the paper. Large digital printer manufacturers are also active in a variety of substrates experiment to ensure that their produce models for good printability of paper, but also to adjust for different paper printer operating parameters to achieve good print quality, and paper and paper manufacturers to develop new projects.

With digital presses and digital printing technology, our demand for the corresponding substrate will have a greater growth in the digital presses and substrates printability issues will be better solution makes the quality of digital printing to achieve a more perfect situation. For paper manufacturers, should learn the advanced experience of foreign countries, digital printing papers as soon as possible to increase research and development, gradually occupy a certain share of the market.

by: gaga

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