HP Latex printing technology and UV printing technology
I.Introduction of Technology
HP Latex printing technology：HP initiative，the Emulsion composition in the ink was melted after heating, and was cooled on the surface of printing material. In this way it can fix the pigment composition, to make the pictures
UV printing technology：
UV printing technology：the Photosensitive resin in the UV ink is cured under the ultraviolet, This is the Properties of pigments fixed on the surface of the medium
II.Function description
1、Application medium
HP Latex and UV has the same character: wide applicability on Print media, Even can print on media without print coating
As UV can be divided into UV flatbed, Coil UV and plate rolling UV，it can print on more varieties of material. In addition, UV ink is divided into hard, soft, flexible, and so on, but to specific equipment to apply.
2、picture quality
HP Latex ink droplets smaller, 6 color ink transition supple nature, high quality picture.
UV printing screen, ink drops obviously, while the presence of ubiquitous UV spot in the industry, affecting the quality of the picture. The cause of the formation of UV spots: UV print out the ink, the need for a short time to flow flat, and then use UV light irradiation curing. Because the UV lamp is moving along with the print head, and inkjet printing is multi print, so there will be UV spots. By improving the number of pass printing can be improved, but it will sacrifice the cost and efficiency.
HP Latex picture is flat, can be covered with cold lamination film, increase durability.
UV printing can feel the texture of the picture. So cannot be covered with cold film protection.
PASS：
PASS line：As a result of individual nozzle blockage, the media forward step accuracy, the number of overlapping nozzles and other reasons will be formed on the screen of light and dark stripes.
HP Latex can avoid the PASS line by some special technology：
① Hot foam print head: the number of nozzles is more than 2 times of micro piezoelectric, of which the conventional work of the 70%, the spare of 30%
② Drop sensor: can accurately detect the failure of the nozzle, issued a directive to use the spray hole supplement
③ OMAS：Accurate detection of forward deviation of the media, issued instructions to adjust
UV current solution for PASS line:
Increase the diameter of the spindle and the encoder, equipment weight and power needs to be improved, but the accuracy is not high
Increase the number of prints, sacrifice efficiency and cost
3、Print efficiency
①HP LatexThe number of nozzles (hot foam) is 2 times higher than that of the UV print head
②HP Latex The print head is lighter than the UV print head (less inertia) and can move faster
③HP Latex Print head is not corrosion resistant, can not be used in UV, weak solvent, solvent ink
④HP Latex Ink curing requires heating, heating device and complex algorithm control, and UV, weak solvent, solvent ink equipment does not have such a function Due to the above reasons, will determine the HP Latex printing speed will be faster than UV.
In addition to taking into account the print quality UV (PASS Road, UV spot), the need to increase the print variables (PASS number), a serious impact on print efficiency.
4、Printing cost
UV printing spent about double price than Latex printing
5、Environmental characteristics
HP Latex : The use of natural latex, ink green environmental protection, access to green guards, Nordic White Swan and other international top environmental certification, can be widely used in decoration, wallpaper and other environmental protection requirements of the industry. Whether it is printing process, or print finished products, there is no smell.
① Improve the environmental quality of products to meet market demand
② Improve the production environment, reduce the risk of employment
③ No flammable materials, reduce production risk of fire
UV ink will have a more pungent odor, the timely completion of the print screen will continue to emit a pungent odor.
6、maintenance
○HP Latex can automate maintenance, so you can achieve unattended print;
○UV need to detect the print head status, timely print head cleaning maintenance, maintenance method for manual cleaning. High sense of responsibility for the printing staff.
III. Developing trend
HP Latex
① Customer demand for quality and environmental protection is getting higher and higher
② National environmental policy support, some regional policy has begun to limit the development of pollution printing
③ With the gradual increase of labor costs, HP Latex can effectively reduce the labor input
④ The production staff is more and more demanding on the environment, reducing the risk of employment
HP Latex technology is currently in the stage of market awareness, but due to the excellent market potential, excellent equipment performance, will soon enter the mainstream market!
UV in the plate printing is good at UV, because of the high cost of the plate, so the cost of UV printing can be accepted in the coil printing, due to the limitations of quality and speed, the development will be more and more limited