Will Digital Printing Can Replace Screen Printing ?
In recent years, the rapid development of digital printing, a great alternative to screen printing trend. What are the differences between the two printing processes, in the end how to know and choose? The following detailed analysis of your digital printing and screen printing of the technical characteristics and development prospects.
Printing refers to the use of dyes or coatings on the fabric surface to form a graphic. Printing technology development so far, has formed a screen printing, rotary screen printing, roller printing, digital printing and other printing process coexist with each other pattern. A variety of printing process for different applications, there are differences in the characteristics of the use of printing equipment and supplies are not the same. Screen printing as a traditional classic printing process, its wide range of applications in the printing industry, the proportion is relatively high, and the rapid development of digital printing in recent years, many people think there will be alternative screen printing trend. What are the differences between the two printing processes? In this analysis of the difference between digital printing and screen printing.
1 There is little difference in the type of printing material
Digital printing is divided into acidic digital printing, digital printing, digital printing, digital thermal transfer printing and scattered direct printing digital printing five categories. Digital printing acid ink for wool, silk and other fiber fibers and nylon fiber and other fabrics. Digital printing reactive dye ink is mainly applied to cotton, linen, viscose fiber and silk and other fabrics of digital printing, can be used in cotton fabrics, silk fabrics, wool fabrics and other natural fiber fabric digital printing. Digital printing paint ink for cotton fabrics, silk fabrics, chemical fiber and blended fabrics, knitted fabrics, sweaters, towels, blankets, digital inkjet printing. Digital printing thermal transfer ink for polyester, non-woven fabrics, ceramics and other materials transfer printing. Digital printing Direct injection disperse ink for polyester fabrics, such as decorative cloth, banner cloth, banners and other digital printing.
Traditional screen printing in the type of printing materials compared to digital printing and not much advantage. First, the traditional printing format of the size of the existence of limitations, large-scale industrial digital inkjet printing machine inkjet width of up to 3 to 4 meters, non-stop printing, the length is not limited, they can even form a whole production line; In some materials, traditional water-based ink printing can not achieve better performance, this can only use solvent-based ink to print, and digital printing in any material can use water-based ink for inkjet printing, so to avoid a lot of use Flammable and explosive non-environmentally friendly solvent.
2 Digital printing more vivid colors
The biggest advantage of digital printing is mainly focused on the fine color and pattern. First of all, from the color, the digital printing ink is divided into dye-type ink and pigment-based ink, dyed bright colors, better than paint. Acid Digital Printing, Active Digital Printing, Disperse Thermal Transfer Printing and Dispersion Direct Injection Digital printing uses dye-type inks. Paint digital printing Although the use of pigments as a coloring agent, but they are using nano-grade pigment paste. Specific ink, as long as the matching dedicated ICC curve, color display to achieve the ultimate. The traditional screen printing color, one is based on four-color dot hit color, the second is to rely on pre-ink ink to control the color display power as digital printing. In addition, the digital printing, the pigment ink is used in nano-pigment paste, dye in the dye dye is water-soluble, even the dispersion of sublimation transfer ink, pigment is nano-level.
Digital printing pattern fine degree and inkjet print head characteristics, print speed. The smaller the ink droplet of the inkjet printhead, the higher the print accuracy, where the ink droplets of the Epson micro piezo printhead are the smallest, and the ink droplets of the industrial head are larger than the ink droplets, but can also print images with a precision of 1440 dpi. In addition, the same printer, the faster the print speed, the smaller the print accuracy. Screen printing first need to film plate, plate making process error and the mesh size of the pattern of the degree of fine impact. In theory, the smaller the better aperture, but the ordinary printing more use of 100 to 150 mesh screen, four-color network of mesh for the 200 mesh. The higher the mesh, the greater the probability of water-based ink blocking network, which is a common problem. In addition, when the degree of printing on the version of the accuracy of the printing pattern of the degree of great impact on the machine printing is relatively better, but the manual printing is more difficult to control.
Obviously, the color and fine graphics is not the advantage of screen printing, the advantage lies in the special printing paste, such as gold, silver, pearl color, crack effect, bronzing flocking effect, suede foam effect and so on. In addition, the screen printing can be printed 3D stereo effect, which are difficult to achieve the current digital printing. In addition, digital printing to make a white ink more difficult. The current white ink is mainly dependent on the maintenance of imported ink, but printed on the dark fabric, no white is not enough, which is the current popularity of digital printing in the country need to break through the difficulties.
3 Digital printing feel soft silk screen printing high color fastness
The main performance of printing products include surface, that is, feel (softness), back to sticky, resistant to resistance, rubbing fastness, soap color fastness; environmental protection, that is, whether formaldehyde, azo, pH, carcinogenic Aromatic amines, phthalates and the like.
Traditional screen printing, in addition to water slurry and discharge, other types of printing a strong sense of coating, it is because the printing ink formulations as a binder resin content is high, and the amount of ink is relatively large reason. And digital printing is basically no coating sense, printing light, soft, good viscosity back. Even the paint digital printing, because the formula very little resin content, the basic will not affect the feel. Acid digital printing, active digital printing, scattered thermal transfer printing and scattered direct printing digital printing, which is no coating, does not affect the original fabric feel.
Whether in the traditional water-based printing ink or paint printing ink, the resin as a binder, on the one hand to increase the adhesion of the coating and the fabric fastness, so that after washing is not easy to crack and fall off; the other hand, the resin can be wrapped paint Particles, so that the friction is not easy to decolorize. Traditional water-based printing inks and slurries in the resin content of 20% to 90%, usually 70% to 80%, while the digital printing ink in the printing ink contains only 10% of the resin. Obviously, theoretically analyzed, digital printing of the color fastness to rubbing, soap color fastness will be worse than the traditional printing. In fact, digital printing without a certain post-processing, the friction color fastness is indeed poor, especially wet rubbing fastness. At present, in the rubbing fastness and color fastness to soap color printing needs further exploration and breakthrough.
4 Digital printing equipment, high cost
Digital printing used by the printer there are three types. First, Epson desktop machine modified flat-panel machine, such as EPSON T50 modified flat-panel machine, this type of model is mainly used for small format ink printing ink production, the purchase cost of these models relative to other models to be much cheaper. The second is to load Epson DX4 / DX5 / DX6 / DX7 series of inkjet print head printer, which DX5 and DX7 the most common, such as MIMAKI JV3-160, MUTOH 1604, MUTOH 1624, EPSONF 7080, EPSON S30680, these models each Taiwan printer to buy the cost of about 10 million. At present, DX4 print head market price of each 4,000 yuan, DX5 print head market price of each of more than 7000 yuan, DX7 print head market price of 12,000 yuan each. Third, the industrial inkjet digital printing machine, which represents the machine Kyoco Kyocera industrial nozzle digital printing machine, Seiko SPT nozzle digital printing machine, Konica industrial nozzle digital printing machine, SPECTRA industrial nozzle digital printing machine, the printer purchase costs generally high. The brand's print head a single market price of more than 10,000 yuan, and a print head can only print a color. In other words, in order to print four colors, a machine would have to install four print head, so the cost is extremely high.
Therefore, the cost of digital printing equipment is extremely high, the nozzle as a digital inkjet printer main supplies, the price is extremely expensive. Digital printing ink market price is indeed much higher than the traditional printing materials, but 1 kg of ink output printing area and 1 kg of ink printing area is incomparable. Therefore, in this regard the cost of comparison, have to look at the kind of ink used, the specific printing requirements and printing process and other factors.
In the traditional screen printing, the manual printing screen and scraping for the consumables, when the cost of labor is more significant. Traditional printing machinery, the import of octopus printing machine and elliptical machine than the domestic expensive, but the domestic models have become more mature, but also to meet the production requirements. If it is compared with inkjet printing machine, its purchase cost and maintenance costs are much lower.
5 Screen printing to enhance environmental protection
Environmental protection, the traditional screen printing brought about by environmental pollution, mainly in the following areas: the production process in the production of waste water and waste ink is quite large; in the printing process more or less need to use some bad Of the solvent, and even plasticizers (thermosetting ink is likely to add non-environmentally friendly plasticizer), such as printing water, decontamination oil, white oil, etc .; printing workers in the actual work will inevitably come into contact with chemical solvents, Glue, toxic cross-linking agent (catalyst), chemical dust, etc., have an impact on the health of workers.
Digital printing production process will only be in the pre-treatment sizing and post-processing washing process to produce a certain amount of waste liquid, the entire inkjet process rarely produce waste ink. The entire source of pollution is less than traditional printing and has less impact on the environment and the health of the contact person.
In short, digital printing printing materials widely, printing products colorful, fine patterns, feel good, strong environmental protection, which is its typical characteristics. However, inkjet printers are expensive, and supplies and maintenance costs are high, which is a drawback. Digital printing products in the washing fastness and rubbing fastness is difficult to upgrade; it is difficult to develop stable white ink, resulting in black and dark fabric can not be better printing; due to the nozzle constraints, it is difficult to develop a special The effect of the ink; printing sometimes to pre-treatment and post-processing, more complex than the traditional printing, which are the current digital printing of the disadvantages.
Traditional screen printing in order to steadily develop in today's printing industry, we must grasp the following: to enhance the environmental protection of printing ink to control the printing production of environmental pollution; improve the existing special printing effect printing, and the development of new printing special effects , To lead the printing trend; keep up with the 3D boom, to develop a variety of 3D printing effect; to maintain the printing products, washing and rubbing fastness performance at the same time, the conventional printing in the development of imitation digital no touch, light print effect; Plan, and continue to improve the printing efficiency of production capacity, it is best to develop printing assembly line platform; simplify printing equipment, reduce supplies investment, improve the printing input-output ratio, enhanced and digital printing competitive advantage.
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Printing refers to the use of dyes or coatings on the fabric surface to form a graphic. Printing technology development so far, has formed a screen printing, rotary screen printing, roller printing, digital printing and other printing process coexist with each other pattern. A variety of printing process for different applications, there are differences in the characteristics of the use of printing equipment and supplies are not the same. Screen printing as a traditional classic printing process, its wide range of applications in the printing industry, the proportion is relatively high, and the rapid development of digital printing in recent years, many people think there will be alternative screen printing trend. What are the differences between the two printing processes? In this analysis of the difference between digital printing and screen printing.
1 There is little difference in the type of printing material
Traditional screen printing in the type of printing materials compared to digital printing and not much advantage. First, the traditional printing format of the size of the existence of limitations, large-scale industrial digital inkjet printing machine inkjet width of up to 3 to 4 meters, non-stop printing, the length is not limited, they can even form a whole production line; In some materials, traditional water-based ink printing can not achieve better performance, this can only use solvent-based ink to print, and digital printing in any material can use water-based ink for inkjet printing, so to avoid a lot of use Flammable and explosive non-environmentally friendly solvent.
2 Digital printing more vivid colors
The biggest advantage of digital printing is mainly focused on the fine color and pattern. First of all, from the color, the digital printing ink is divided into dye-type ink and pigment-based ink, dyed bright colors, better than paint. Acid Digital Printing, Active Digital Printing, Disperse Thermal Transfer Printing and Dispersion Direct Injection Digital printing uses dye-type inks. Paint digital printing Although the use of pigments as a coloring agent, but they are using nano-grade pigment paste. Specific ink, as long as the matching dedicated ICC curve, color display to achieve the ultimate. The traditional screen printing color, one is based on four-color dot hit color, the second is to rely on pre-ink ink to control the color display power as digital printing. In addition, the digital printing, the pigment ink is used in nano-pigment paste, dye in the dye dye is water-soluble, even the dispersion of sublimation transfer ink, pigment is nano-level.Digital printing pattern fine degree and inkjet print head characteristics, print speed. The smaller the ink droplet of the inkjet printhead, the higher the print accuracy, where the ink droplets of the Epson micro piezo printhead are the smallest, and the ink droplets of the industrial head are larger than the ink droplets, but can also print images with a precision of 1440 dpi. In addition, the same printer, the faster the print speed, the smaller the print accuracy. Screen printing first need to film plate, plate making process error and the mesh size of the pattern of the degree of fine impact. In theory, the smaller the better aperture, but the ordinary printing more use of 100 to 150 mesh screen, four-color network of mesh for the 200 mesh. The higher the mesh, the greater the probability of water-based ink blocking network, which is a common problem. In addition, when the degree of printing on the version of the accuracy of the printing pattern of the degree of great impact on the machine printing is relatively better, but the manual printing is more difficult to control.
Obviously, the color and fine graphics is not the advantage of screen printing, the advantage lies in the special printing paste, such as gold, silver, pearl color, crack effect, bronzing flocking effect, suede foam effect and so on. In addition, the screen printing can be printed 3D stereo effect, which are difficult to achieve the current digital printing. In addition, digital printing to make a white ink more difficult. The current white ink is mainly dependent on the maintenance of imported ink, but printed on the dark fabric, no white is not enough, which is the current popularity of digital printing in the country need to break through the difficulties.
3 Digital printing feel soft silk screen printing high color fastness
The main performance of printing products include surface, that is, feel (softness), back to sticky, resistant to resistance, rubbing fastness, soap color fastness; environmental protection, that is, whether formaldehyde, azo, pH, carcinogenic Aromatic amines, phthalates and the like.
Traditional screen printing, in addition to water slurry and discharge, other types of printing a strong sense of coating, it is because the printing ink formulations as a binder resin content is high, and the amount of ink is relatively large reason. And digital printing is basically no coating sense, printing light, soft, good viscosity back. Even the paint digital printing, because the formula very little resin content, the basic will not affect the feel. Acid digital printing, active digital printing, scattered thermal transfer printing and scattered direct printing digital printing, which is no coating, does not affect the original fabric feel.
Whether in the traditional water-based printing ink or paint printing ink, the resin as a binder, on the one hand to increase the adhesion of the coating and the fabric fastness, so that after washing is not easy to crack and fall off; the other hand, the resin can be wrapped paint Particles, so that the friction is not easy to decolorize. Traditional water-based printing inks and slurries in the resin content of 20% to 90%, usually 70% to 80%, while the digital printing ink in the printing ink contains only 10% of the resin. Obviously, theoretically analyzed, digital printing of the color fastness to rubbing, soap color fastness will be worse than the traditional printing. In fact, digital printing without a certain post-processing, the friction color fastness is indeed poor, especially wet rubbing fastness. At present, in the rubbing fastness and color fastness to soap color printing needs further exploration and breakthrough.
4 Digital printing equipment, high cost
Digital printing used by the printer there are three types. First, Epson desktop machine modified flat-panel machine, such as EPSON T50 modified flat-panel machine, this type of model is mainly used for small format ink printing ink production, the purchase cost of these models relative to other models to be much cheaper. The second is to load Epson DX4 / DX5 / DX6 / DX7 series of inkjet print head printer, which DX5 and DX7 the most common, such as MIMAKI JV3-160, MUTOH 1604, MUTOH 1624, EPSONF 7080, EPSON S30680, these models each Taiwan printer to buy the cost of about 10 million. At present, DX4 print head market price of each 4,000 yuan, DX5 print head market price of each of more than 7000 yuan, DX7 print head market price of 12,000 yuan each. Third, the industrial inkjet digital printing machine, which represents the machine Kyoco Kyocera industrial nozzle digital printing machine, Seiko SPT nozzle digital printing machine, Konica industrial nozzle digital printing machine, SPECTRA industrial nozzle digital printing machine, the printer purchase costs generally high. The brand's print head a single market price of more than 10,000 yuan, and a print head can only print a color. In other words, in order to print four colors, a machine would have to install four print head, so the cost is extremely high.Therefore, the cost of digital printing equipment is extremely high, the nozzle as a digital inkjet printer main supplies, the price is extremely expensive. Digital printing ink market price is indeed much higher than the traditional printing materials, but 1 kg of ink output printing area and 1 kg of ink printing area is incomparable. Therefore, in this regard the cost of comparison, have to look at the kind of ink used, the specific printing requirements and printing process and other factors.
In the traditional screen printing, the manual printing screen and scraping for the consumables, when the cost of labor is more significant. Traditional printing machinery, the import of octopus printing machine and elliptical machine than the domestic expensive, but the domestic models have become more mature, but also to meet the production requirements. If it is compared with inkjet printing machine, its purchase cost and maintenance costs are much lower.
5 Screen printing to enhance environmental protection
Environmental protection, the traditional screen printing brought about by environmental pollution, mainly in the following areas: the production process in the production of waste water and waste ink is quite large; in the printing process more or less need to use some bad Of the solvent, and even plasticizers (thermosetting ink is likely to add non-environmentally friendly plasticizer), such as printing water, decontamination oil, white oil, etc .; printing workers in the actual work will inevitably come into contact with chemical solvents, Glue, toxic cross-linking agent (catalyst), chemical dust, etc., have an impact on the health of workers.
Digital printing production process will only be in the pre-treatment sizing and post-processing washing process to produce a certain amount of waste liquid, the entire inkjet process rarely produce waste ink. The entire source of pollution is less than traditional printing and has less impact on the environment and the health of the contact person.
In short, digital printing printing materials widely, printing products colorful, fine patterns, feel good, strong environmental protection, which is its typical characteristics. However, inkjet printers are expensive, and supplies and maintenance costs are high, which is a drawback. Digital printing products in the washing fastness and rubbing fastness is difficult to upgrade; it is difficult to develop stable white ink, resulting in black and dark fabric can not be better printing; due to the nozzle constraints, it is difficult to develop a special The effect of the ink; printing sometimes to pre-treatment and post-processing, more complex than the traditional printing, which are the current digital printing of the disadvantages.
Traditional screen printing in order to steadily develop in today's printing industry, we must grasp the following: to enhance the environmental protection of printing ink to control the printing production of environmental pollution; improve the existing special printing effect printing, and the development of new printing special effects , To lead the printing trend; keep up with the 3D boom, to develop a variety of 3D printing effect; to maintain the printing products, washing and rubbing fastness performance at the same time, the conventional printing in the development of imitation digital no touch, light print effect; Plan, and continue to improve the printing efficiency of production capacity, it is best to develop printing assembly line platform; simplify printing equipment, reduce supplies investment, improve the printing input-output ratio, enhanced and digital printing competitive advantage.
Welcome to contract us !
Company:nanjing hi transfer digital technology co.,limited
website:http://hitransfer.com/index.php
facebook:https://www.facebook.com/techsublimation
twitter:https://twitter.com/techsublimation
linkedin:https://www.linkedin.com/in/tech-sublimation-548a7a133/
google+:https://plus.google.com/u/0/107910599828124340419
vk:https://vk.com/sbpaper
whatsapp:+8615756007679
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