Dragging is a gradual change from a certain part of the picture and text, which gradually disappears. The shape of the animal is often called tailing. The paste version is different. It is a figure that overflows at the edge of the graphic and the width of the graphic is basically the same, the ink color is lighter than the graphic, and the shape is uncertain. Gravure printing often encounters pasting and dragging faults. The two faults exhibit different phenomena, their causes and solutions are different, but there are many people, including some printing experts, who are difficult Make a distinction. This article will make a detailed comparison of these two faults. 1. Show different phenomena Dragging is a gradual change from a certain part of the picture and text, which gradually disappears. The shape of the animal is often called tailing. The paste version is different. It is a figure that overflows at the edge of the graphic and the width of the graphic is basically the same, the ink color is lighter than the graphic, and the shape is uncertain. 2. The causes are different The reason for the drag is that there is impurities between the scraper and the printing plate, and it extends to the back of the ground knife. When the scraper scrapes the graphic part on the printing plate, impurities are in contact with the ink. When the scraper scrapes out the force producing part of the text, the impurities fall behind the blade and contact the printing plate, which will damage the graphic. The squeegee is mainly due to the curved contact between the scraper and the printing plate, that is to say, the knife is very tight and the air pressure is also large. Inside is allowed. When the scraper moves out of the graphic part, the blade hits the shoulder of the net and will bounce back like a ball hitting the wall. Therefore, when the blade moves out of the graphic part of the plate, the part of the scraper that contacts the graphic will give way to the side. The printing plate is scraped clean, under the action of printing pressure, the ink will overflow the graphic part, causing paste. 3. Different solutions In the production, if the image or text is damaged, just use a bamboo chopstick to gently scrape it. If you encounter the problem of gluing, you need to solve it by loosening the knife and reducing the air pressure. 4. What both failures have in common When the viscosity of the ink is relatively low, dragging and paste faults are easy to occur. Therefore, appropriately increasing the viscosity of the ink has a great effect on preventing the occurrence of the above two faults. Helper Food Machinery is one of the most professional noodle equipment manufacturing and R&D enterprises in China. We provide a full set of solutions for fresh noodles, frozen cooked noodles, LL noodles, semi-dry noodles, dry noodles, Chow mein noodles, etc. Our noodle production line has not only won the recognition of major Chinese noodle customers, but also exported to the United States, Germany, and other countries. The noodle line mainly includes pre-processing equipment, including kneading, rolling, aging, sliting, etc., as well as further-processing equipment, including steam cooking, quick-freezing, sterilization, acid water rinse and other equipment. Boiled Noodle Production Line,Noodle Production Line,Frozen Cooked Noodles Making Machine,Fresh Noodles Line Helper Machinery Group Co., Ltd. , https://www.helperfoodmachiney.com