Indigo's color digital offset presses provide a unique combination of features based on its color digital offset press technology and operation. Features include high-quality screen printing, high-speed printing, generalized color printing, and the ability to print and process a wide variety of prints on a wide-area photographic plate.
What is color digital offset printing
1. Digital Printing and Offset Printing
Digital printing refers to the production of pages directly from digitized data. Text and pictures are produced by electronic layout or desktop publishing programs. Unlike traditional printing programs, digital printing eliminates prepress operations from digital files to the final printing process, eliminating the need for films, imagesetters, plateetters, or chemical imaging. It is not necessary to check the electronic documents and typesetting the final product before printing. No need for overprinting, no overprint adjustment and ink transfer. Offset uses a transfer roller to transfer the ink image from the plate to the final substrate.
A significant difference between traditional offset printing technology and Indigo offset printing technology is that Indigo's electronic ink can be completely transferred during the transfer of ink from the blanket to the substrate, thus solving the problem of ink splash in traditional offset printing. This means that every turn of the machine will produce a new color.
2. color
Indigo's digital printing technology supports full-color printing and can print multi-color prints at once.
Indigo's core technology
Indigo's three core technologies are electronic inks, thermal offset printing and rapid color conversion.
1. Electronic ink
Indigo presses use electronic inks - Indigo's unique liquid inks. Electronic inks contain charged liquid ink particles that make it possible to electronically control the position of printed particles in digital printing. Electronic inks can reach very small particles (1 to 2 microns), so that small particles allow printing to achieve higher resolution and smoothness, sharpening the edges of the image, and forming a very thin image layer.
(1) Standard basic color CMYK (cyan, magenta, yellow, black);
(2) The wide color gamut six-color setting increases orange red and purple, so that the color reproduction capability is much higher than the color reproduction ability on the basis of the original four colors;
(3) PINDONE compatible INDIGO spot color system;
(4) The opaque white coating of the colorless printing material;
(5) Fluorescent ink.
2. Hot offset
Hot offset printing refers to the use of a blanket heated to 100°C to melt the colored particles in Indigo electronic ink into a smooth liquid product. The heat of the blanket and the time it takes to stay are not enough to heat the paper or substrate. The ink will dry out quickly after leaving the printer, eliminating the possibility of smudging other prints. This is one of the main advantages of Indigo offset printing compared to traditional offset printing.
In summary, Indigo's offset printing technology has the traditional offset printing effect, the ability to print on various substrates and the ability to dry at high speed, so that we do not have to wait in the process of double-sided printing.
3. Color transformation
Indigo's digital color offset technology can print all colors on a set of rollers. After one color is printed, the other color is printed on the same roller. Indigo's blanket has a 100% secondary transfer capability so no image remains on the blanket. Monochrome roller printing has many advantages: compact structure, low hardware consumption and high mechanical accuracy.
Indigo Digital Color Offset Quick Guide
1. Printing process
The operation of the Indigo press is basically performed in the following sequence of procedures:
(1) Charge the imaging plate (PIP) to a certain potential
(2) scanning an imaging plate with a laser diode to form an electronic image;
(3) Using the potential difference between the recovery roller and the imaging drum and the characteristics of the electronic ink, ink is formed on the imaging plate to form an actual image;
(4) Remove excess liquid and ink from the surface of the imaging plate, and clean and compress the image area and background area;
(5) Transfer the ink image on the imaging plate to the blanket cylinder;
(6) Remove any remaining ink from the imaging plate and reset its discharge;
(7) Inking images on a heated blanket;
(8) The heated inking image is transferred to the substrate.
The above operation will automatically repeat for each color in the image.
In the multicolor overlay of the Indigo digital press, one color will be generated on the imaging plate at a time and transferred to the blanket. The final transfer to the substrate. The substrate will stay on the impression cylinder for several consecutive rotations for color printing. After the last color registration, the substrate will be delivered to the output tray or printed on both sides.
Indigo's reels and printers use a primary transfer process. The imaging drum will rotate several times in this case, so that multiple colors are continuously overprinted onto the blanket before the blanket passes through the impression cylinder.
The advantages of digital offset printing
1. Quality characteristics
(1) Edge sharpness and sharpness
It can be clearly seen from the high magnification results that the image formed by the electronic ink has a sharper sharpness than the image formed by the electrostatic copy powder. This advantage is even more pronounced when printing continuous images.
The sharpness of the electronic ink image is sharper at the edges of the continuous tone image of the intermediate color or the finely printed text image. The clean and pollution-free background of electronic ink images is also worth noting. This advantage comes from the tiny particles of electronic ink and the way the electronic ink particles are transferred during printing.
(2) Dot gain and color consistency
Dot enlargement refers to the tendency of printed continuous blended line images to spread under embossing. Indigo digital color offset printers can control dot gain. The Indigo press has a calibration function that allows printed dots to be in the required size range. In addition. The Indigo press automatically adjusts the optimal density (such as the darkness of the appearance) and the size of the dot so that each print has the same appearance.
(3) Image smoothness
Many people think that the key to the quality of offset printing is image smoothness, which is not the case. The key to quality lies in the uniformity of the image. Indigo presses, unlike electrostatic dry powder printers or copiers, can only output images with the same smoothness regardless of the material of the paper. This results in varying degrees of smoothness (such as solid dry powder coverage) and highlighted areas (not covered) in dark areas. Dry powder covered area).
The electronic ink image matches the smoothness of the substrate and, like a conventional offset press, produces effects ranging from rough to dull to high brightness. According to different figures and the smoothness characteristics of the offset press, the actual operation shows that the ideal smoothness of the electronic ink can basically meet the requirements of various papers other than super-glossy paper. For moderately smooth paper, electronic ink is more advantageous than lithographic ink, but lithographic ink is superior in the field of ultra-smooth paper.
(4) color difference
Electronic ink can be printed according to international color standards. All of these standards are based on four-color standard basic color CMYK (cyan, product, yellow, black). Lithography uses different ink formulations according to different standards, while electronic ink uses only one set of colors for different standards. The electronic ink adjusts the density of ink (color concentration) through electrons to suit different needs. The special properties of electronic ink and the charging characteristics of its ink determine its unique features on a four-color basis.
In addition to printing the four-color basic color, the electronic ink of the spot color system expands the color gamut to a color gamut that cannot be achieved by the four-color basic color. The spot color ink system is capable of six-color printing, and imaging uses a primary transfer technology.
(5) Instant drying
Because the electronic ink solidifies when it is transferred to the substrate, the finished product will dry when leaving the Indigo press. Electronic inks can be cured without emissions without further drying. Simultaneously. The electronic ink only needs 100°C, and the relatively low temperature does not allow the substrate to be heated, damaged or curled.
(6) Do not fade under light
The pigment particles encapsulated in the electronic ink plastic resin will prevent the chemical components of the pigment from being oxidized or affected by moisture, especially under intense sunlight ultraviolet radiation. Electronic inks have advantages over conventional offset inks in this regard.
2. Substrate compatibility
(1) Indigo's digital color offset printers have a wider range of substrate (different surface and thickness) adaptability than other digital printers, suitable for printing paper, cards, plastics, films, or metal substrates.
(2) Users of the Indigo press can quickly replace the substrate without replacing the ink.
The surface of some printing materials needs to undergo simple processing before printing to withstand the subsequent processing and conversion process, so that the image can be solidified on the surface. Indigo has developed Sapphire paper surface treatment technology and Topaz's plastic film surface treatment technology.
From the above description we can see that Indigo's digital color offset printing system is unique in terms of quality, color gamut, and substrate adaptability. Simultaneously. The Indigo printing system features tight printing, fewer components, low failure rates, and more accurate color registration.
What is color digital offset printing
1. Digital Printing and Offset Printing
Digital printing refers to the production of pages directly from digitized data. Text and pictures are produced by electronic layout or desktop publishing programs. Unlike traditional printing programs, digital printing eliminates prepress operations from digital files to the final printing process, eliminating the need for films, imagesetters, plateetters, or chemical imaging. It is not necessary to check the electronic documents and typesetting the final product before printing. No need for overprinting, no overprint adjustment and ink transfer. Offset uses a transfer roller to transfer the ink image from the plate to the final substrate.
A significant difference between traditional offset printing technology and Indigo offset printing technology is that Indigo's electronic ink can be completely transferred during the transfer of ink from the blanket to the substrate, thus solving the problem of ink splash in traditional offset printing. This means that every turn of the machine will produce a new color.
2. color
Indigo's digital printing technology supports full-color printing and can print multi-color prints at once.
Indigo's core technology
Indigo's three core technologies are electronic inks, thermal offset printing and rapid color conversion.
1. Electronic ink
Indigo presses use electronic inks - Indigo's unique liquid inks. Electronic inks contain charged liquid ink particles that make it possible to electronically control the position of printed particles in digital printing. Electronic inks can reach very small particles (1 to 2 microns), so that small particles allow printing to achieve higher resolution and smoothness, sharpening the edges of the image, and forming a very thin image layer.
(1) Standard basic color CMYK (cyan, magenta, yellow, black);
(2) The wide color gamut six-color setting increases orange red and purple, so that the color reproduction capability is much higher than the color reproduction ability on the basis of the original four colors;
(3) PINDONE compatible INDIGO spot color system;
(4) The opaque white coating of the colorless printing material;
(5) Fluorescent ink.
2. Hot offset
Hot offset printing refers to the use of a blanket heated to 100°C to melt the colored particles in Indigo electronic ink into a smooth liquid product. The heat of the blanket and the time it takes to stay are not enough to heat the paper or substrate. The ink will dry out quickly after leaving the printer, eliminating the possibility of smudging other prints. This is one of the main advantages of Indigo offset printing compared to traditional offset printing.
In summary, Indigo's offset printing technology has the traditional offset printing effect, the ability to print on various substrates and the ability to dry at high speed, so that we do not have to wait in the process of double-sided printing.
3. Color transformation
Indigo's digital color offset technology can print all colors on a set of rollers. After one color is printed, the other color is printed on the same roller. Indigo's blanket has a 100% secondary transfer capability so no image remains on the blanket. Monochrome roller printing has many advantages: compact structure, low hardware consumption and high mechanical accuracy.
Indigo Digital Color Offset Quick Guide
1. Printing process
The operation of the Indigo press is basically performed in the following sequence of procedures:
(1) Charge the imaging plate (PIP) to a certain potential
(2) scanning an imaging plate with a laser diode to form an electronic image;
(3) Using the potential difference between the recovery roller and the imaging drum and the characteristics of the electronic ink, ink is formed on the imaging plate to form an actual image;
(4) Remove excess liquid and ink from the surface of the imaging plate, and clean and compress the image area and background area;
(5) Transfer the ink image on the imaging plate to the blanket cylinder;
(6) Remove any remaining ink from the imaging plate and reset its discharge;
(7) Inking images on a heated blanket;
(8) The heated inking image is transferred to the substrate.
The above operation will automatically repeat for each color in the image.
In the multicolor overlay of the Indigo digital press, one color will be generated on the imaging plate at a time and transferred to the blanket. The final transfer to the substrate. The substrate will stay on the impression cylinder for several consecutive rotations for color printing. After the last color registration, the substrate will be delivered to the output tray or printed on both sides.
Indigo's reels and printers use a primary transfer process. The imaging drum will rotate several times in this case, so that multiple colors are continuously overprinted onto the blanket before the blanket passes through the impression cylinder.
The advantages of digital offset printing
1. Quality characteristics
(1) Edge sharpness and sharpness
It can be clearly seen from the high magnification results that the image formed by the electronic ink has a sharper sharpness than the image formed by the electrostatic copy powder. This advantage is even more pronounced when printing continuous images.
The sharpness of the electronic ink image is sharper at the edges of the continuous tone image of the intermediate color or the finely printed text image. The clean and pollution-free background of electronic ink images is also worth noting. This advantage comes from the tiny particles of electronic ink and the way the electronic ink particles are transferred during printing.
(2) Dot gain and color consistency
Dot enlargement refers to the tendency of printed continuous blended line images to spread under embossing. Indigo digital color offset printers can control dot gain. The Indigo press has a calibration function that allows printed dots to be in the required size range. In addition. The Indigo press automatically adjusts the optimal density (such as the darkness of the appearance) and the size of the dot so that each print has the same appearance.
(3) Image smoothness
Many people think that the key to the quality of offset printing is image smoothness, which is not the case. The key to quality lies in the uniformity of the image. Indigo presses, unlike electrostatic dry powder printers or copiers, can only output images with the same smoothness regardless of the material of the paper. This results in varying degrees of smoothness (such as solid dry powder coverage) and highlighted areas (not covered) in dark areas. Dry powder covered area).
The electronic ink image matches the smoothness of the substrate and, like a conventional offset press, produces effects ranging from rough to dull to high brightness. According to different figures and the smoothness characteristics of the offset press, the actual operation shows that the ideal smoothness of the electronic ink can basically meet the requirements of various papers other than super-glossy paper. For moderately smooth paper, electronic ink is more advantageous than lithographic ink, but lithographic ink is superior in the field of ultra-smooth paper.
(4) color difference
Electronic ink can be printed according to international color standards. All of these standards are based on four-color standard basic color CMYK (cyan, product, yellow, black). Lithography uses different ink formulations according to different standards, while electronic ink uses only one set of colors for different standards. The electronic ink adjusts the density of ink (color concentration) through electrons to suit different needs. The special properties of electronic ink and the charging characteristics of its ink determine its unique features on a four-color basis.
In addition to printing the four-color basic color, the electronic ink of the spot color system expands the color gamut to a color gamut that cannot be achieved by the four-color basic color. The spot color ink system is capable of six-color printing, and imaging uses a primary transfer technology.
(5) Instant drying
Because the electronic ink solidifies when it is transferred to the substrate, the finished product will dry when leaving the Indigo press. Electronic inks can be cured without emissions without further drying. Simultaneously. The electronic ink only needs 100°C, and the relatively low temperature does not allow the substrate to be heated, damaged or curled.
(6) Do not fade under light
The pigment particles encapsulated in the electronic ink plastic resin will prevent the chemical components of the pigment from being oxidized or affected by moisture, especially under intense sunlight ultraviolet radiation. Electronic inks have advantages over conventional offset inks in this regard.
2. Substrate compatibility
(1) Indigo's digital color offset printers have a wider range of substrate (different surface and thickness) adaptability than other digital printers, suitable for printing paper, cards, plastics, films, or metal substrates.
(2) Users of the Indigo press can quickly replace the substrate without replacing the ink.
The surface of some printing materials needs to undergo simple processing before printing to withstand the subsequent processing and conversion process, so that the image can be solidified on the surface. Indigo has developed Sapphire paper surface treatment technology and Topaz's plastic film surface treatment technology.
From the above description we can see that Indigo's digital color offset printing system is unique in terms of quality, color gamut, and substrate adaptability. Simultaneously. The Indigo printing system features tight printing, fewer components, low failure rates, and more accurate color registration.
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