Group1+2+3 baby car seats fit for children from 9 months to 12 years old (9-36kg), we have 4 types baby car seat for Group1+2+3, which are "BRILLANT", "BRILLANT BASIC" , "NEO CLASSIC" and "CLASSIC COMFORT".
Ningbo Global kids baby products Co.,Ltd is a comprehensive industrial and trading Hi-Tech enterprise which combines R&D, manufacturing and sales of baby car seats all over the world. With 15 years' experience in baby car seat industry, it is one of the earliest and professional baby car seat manufacturers in China.
Anilox roller is the core of the flexographic printing press. It has many types, such as chrome-plated anilox roller, ceramic anilox roller, etc. No matter which one, its structure, function and principle are the same.
1 Anilox roller structure.
The surface of the anilox transfer roller is provided with a recessed mesh groove line for controlling the ink transfer amount during printing. The surface mesh groove lines of the anilox roller are regularly arranged to form a concave network. The ink transfer performance of the anilox roller is related to the number of lines of the mesh channel, the shape of the cell, and the arrangement of the cells.
Number of reticulate lines: The number of network sites per cm in the shortest direction of the network spacing is the number of reticulate lines, which represents the distribution density of the network sites. The number of reticulate lines of the anilox roller influences the amount of ink transferred: the greater the number of reticulate lines, the greater the density of the cell sites, the smaller the volume of the cell sites, and the smaller the amount of ink transferred. Corrugated paper printing generally uses a low number of anilox rollers (typically 65 lines/in or less).
The shape of the net: One is the three-dimensional shape of the net. There are many types of cell sites, which are basically pyramidal and prismatic. As shown in Figure 2-3. (slightly)
2 The characteristics of the anilox roller The screen size is consistent with the distribution of the network, uniform distribution, can effectively transfer and control the amount of ink, so that the thickness of the ink film uniform, the same amount of ink. In addition, there is less occurrence of a phenomenon in which ink is not easily applied due to the difference in the viscosity of the ink. The high precision of the anilox roller ensures that the ink can be transferred under a small pressure and the ink-moistening phenomenon on the edges of the graphic is reduced. The ink is evenly distributed, and edges are not easily hardened. The use of anilox roller to transmit ink, there is little ghosting or levers and other ink transmission failure, high-speed printing less ink phenomenon. The ink volume of the ink inking device using the anilox roller is easy to adjust, the thickness of the transferred ink layer is thin and very uniform, so that the dot color printing becomes possible, and the ink film density is consistent from the minimum dot to the spot. The anilox roller has high durability and corrosion resistance, especially the application of laser engraved ceramic anilox roller greatly improves the service life of the anilox roller and the stability of ink transfer.
3, flexible version of corrugated printing process.
4. The flexographic printing of the flexographic printing is a relief printing. When the printing is in direct contact with the corrugated medium, the printing pressure is lighter. Therefore, the flatness of the flexo plate is higher than that of the metal plate. The factors affecting the flatness of the printing plate, besides the flatness of the printed version, should also pay attention to the printing plate base and the plate cylinder cleanness and flatness. The loaded program is:
1 Clean the printing plate base: There must be no oil and photopolymer residue on the plate base. When cleaning the substrate, the solvent must not come into contact with the surface of the photosensitive layer.
2 Clean the plate cylinder: Before affixing the plate, first use a fine gauze to scrub the surface of the plate with the printing plate. If oil stains or dirt can be used, clean it with gasoline.
3 Adhesive tape: Take a protective film with double-sided adhesive tape on one side, and attach the adhesive tape to the plate cylinder at the position where the plate is installed. When attaching, the hand and neck should be large and firmly adhered. When hand pressing, remove the protective film from the center of the tape and then remove the protective film on the other side.
4 Paste the plates: Arrange the flexographic plates on the platen tape by positioning them. When aligning, you should align the vertical and horizontal coordinate lines on the platen roller. Pay attention to the bite and drag of the plate. The position must be correct and not skewed. At the time of sticking, a wood hammer is tapped to attach any part to the surface of the plate cylinder and the entire plate is glued.
5 Seal the edge of the printing plate: After the printing plate is pasted, the sealant should be added around the edges to prevent the ink and solvent from eroding the double-sided adhesive tape when printing and cleaning the printing plate, to avoid the occurrence of shelling between the printing plate and the roller. phenomenon.
5, printing 1 printing pressure Flexo printing pressure should be light, in order to clear graphics can print. The pressure is too heavy, the flexographic plate is squeezed and deformed, the lines and dots spread outwards, and the lines become thicker. If the pressure is too light, the picture is not clear. The adjustment of the printing pressure should be based on the printing quality standard. The graphic and ink of the printing should be consistent and clear. To adjust the flexographic printing pressure, the following three aspects should be noted: the flatness of the printing plate; the pressure between the anilox roller and the plate roller should be appropriate, so that the two rollers are tangent and the optimum printing pressure is selected. Because this is related to the control of the ink volume and the consistency of the ink color; the pressure between the embossing roller and the plate roller should be appropriate, the surfaces of the two rollers should be tangent, and the two ends of the roller should be consistent with the intermediate pressure.
2 printing ink flexo printing Anilox roller used to transmit ink, small network, the texture of printing ink should be fine, the color should be bright, the viscosity of the ink should match the printing speed. Corrugated paper printing generally use water-soluble quick-drying ink, water-based ink for short, its linking material is the oil and water miscible system formed by resin and water under the action of surfactant. The stability of the system is poor. The stability of water-based ink depends on the pH value: When the PH value drops to about 7.8 or lower, the ink starts to become cloudy and thickened, and it is easy to conjunctiva, hindering the normal ink transfer. Alkaline too strong, has an effect on the anilox roller, generally PH value is controlled at 8 ~ 9, aqueous ink is alkaline, similar to soap solution, easy to foam. Compared with solvent inks, water-based inks have lower viscosity, save solvent, have better safety, less environmental pollution, and no toxicity; however, they have an impact on the stretchability of paper and errors in overprinting. More suitable for printing corrugated paper and lower quality prints. In the flexo printing process, solvent transfer to the ink, shades of ink, balance of colors, and resistance to printing plates are of great concern. In the printing process of flexible corrugated board, the main use of water as a solvent, the ink on the cardboard quickly dry.
Third, the flexographic corrugated paper printing failure analysis (to be continued)
Baby Car Seats Group 1+2+3, 9-36Kg Baby Car Seats, Safest Baby Car Seat
NINGBO GLOBAL KIDS BABY PRODUCTS CO.,LTD , http://www.nb-globalkids.com