The Effect Of Screen-printing Process Gyrosigma - Screen Printing, Gyrosigma Effect, Imitation Metal

Screen printing, a number of other printing methods can not achieve the special effects

have been widely used in high-end packaging, such as imitation metal etching, Ice and so we are more familiar with the effects, and landscaping package, upgrade products, customers get the full recognition . Meanwhile, with the development of technology, new processes and technologies are still emerging, Gyrosigma effects increase as the process matures, it has become more popular in today one way of surface finishing.

Technological features We all know, imitation is the use of matte metal etching ink their grainy, in Gold, Silver matte paper and print out the results. The sand thickness sense, feel Dengjun depends on the ink, the limitations of a larger operation to adjust. Embossed metal etching process in the basis of imitation, imitation embossed process learned some of the features, plate-making film from start to spread evenly round or rectangular bitmap to replace the original solid filled background, printing its and scrub with a coarse texture similar effect. Meanwhile, the size of its texture, shape and so can be adjusted by plate film, more autonomy. Printing ink used in printing ink is no longer confined to scrub, you can also use variable light ink, pearl ink and some other types of ink, which shows the different effect of colorful, with a higher aesthetic value.

Plate Proofing and high quality screen printing plate is beautifully made an important prerequisite for Gyrosigma printing effect. Therefore, a good plate process control is particularly important.

First of all, will make a good film Gyrosigma imposition should be taken into account when the overlay printing requirements, the Union should retain some of the gaps between. Different from the actual film because Gyrosigma fill patterns. When using the film shrinking, with the past "dug word" approach to improve the graphic overlay will destroy the integrity of which can only use one method of moving together as a whole to improve the overlay. Keep the gap to leave room for later cutting process.

Second, the network version of the tension should meet the requirements. If the network version of the tensile strength, will appear in print imprinted stretch, overprint allowed, hue unstable series of problems. In general, 300 mesh / inch screen, the tension should be controlled in 20? 23N/cm between. In addition, the thickness of photoresist coating to moderate, to avoid appearing in a screen layer thickness is uneven bubble phenomenon, so as not to have a greater impact print quality. Finally, the number of different screening locations, using special test strips measure the exact exposure time, every time after printing down should make detailed records of Management of data, make evidence-based future work.

To bitmaps for Gyrosigma based products, if the wire mesh and screening line with the number of irrational, because its structure and the existing wire-plate system constraints, are prone to interference Photo of Moire phenomenon. Moreover, the higher line screens, the more sophisticated graphics, resulting in higher chance of moire. Proof print by on many occasions, in 300 mesh / inch wire line can be overcome by adjusting the angle of printing down 60 lines / inch outlets produce moire. On this basis, increased screen lines, the selected screen mesh should be increased to improve accuracy, reduce moire. On the contrary, be appropriate to reduce the wire mesh to improve the feel.

If the point of setting does not properly screen the thread will interfere with the integrity of networks, affecting production of Gyrosigma effect. Methods in two ways: one is "inclined Bengzhi drying method", that is stretching wire and screen frame when tilted at an angle between, the film and proofing time remained unchanged net frame angle; Second, "straight stretch oblique drying method", that is stretching to maintain right angles to film in the network when printing down frame tilted 4? 8 degrees. "Straight stretch oblique drying method," not because the angle of tilt, the error can be adjusted in the printing press over. And "oblique Bengzhi drying" method because of the increasing need to purchase specialized widen the screen, and when the operation is difficult stretching, screen waste and therefore not recommended. Screen after exposure, you should use high-pressure, low flow spray gun to develop, to avoid the pressure caused by lack of transparency in red dot, or causing too much network traffic was obliterated in the phenomenon. Should be checked before the machine screen printing graphic is complete, whether the full network. Some suspected the network is not transparent ink can be put under the magnifying glass needle with embroidery revised version of the method.

Ink Screen printing Gyrosigma effect of ink types can be used more generally chosen according to different design requirements of different types of ink. Fill in some background in real main effect of Gyrosigma supplement products, can be used like pearl colored ink, color ink coverage on the background, it produced in the transformation angle pearl, color and other colorful effects . If Gyrosigma as the main color directly in gold, silver card paper printing, you can choose the class of some colorless matte ink.

In the choice of ink, the "wheeling rate" is a key consideration to the parameter. Over the net rate of bad ink, printing the remaining residue more print outlets started printing clear, after printing a certain number of locations will appear the phenomenon of incomplete incomplete. Should try to use a number of non-web-of uV ink, to avoid printing the frequent washing version, reduce labor intensity, the same time, UV ink solvent-based ink is more than safety, environmental protection.

Paper Order to improve the product grade, more and more packaging options coated in gold, silver cardboard. Class using the colorless ink printing Gyrosigma effect, due to ink particles itself is colorless and transparent, the product of the hue reflected largely depend on gold, silver cardboard own color. If the use of the same color of different shades of paper itself, differ significantly, then the printed product hues of course also inconsistent. Therefore, in the procurement of paper, the supply department in addition to consideration of the paper size, thickness, stretch rate indicators, the color of the paper should also be included in the scope of quality inspection of raw materials, thereby avoiding the same batch of printed paper causes inconsistent hue.

Printing Problems in In the screen printing process, print scraping and washing with an increase in version number, network version of the light-sensitive adhesive layer becomes thin, when, after a certain number of copies printed, the printed matter printed with the new version will be in effect differs greatly. Thus the production of proofs to ground inspection and timely replacement of screen.

Printing Gyrosigma effect, the screen cleaning ability than their fill of graphics to print real difference. Fill in the actual graphic printing, the paper powder may be in print after a few would fall on their own, do not frequently wash version. However, when printing Gyrosigma effect, printing a few

by: gaga

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