The hottest hose printing process and skills 0

Flexible tube printing uses the principle of image transfer of elastic rubber layer to print the hose. The metals used to make the hose include tin, lead, aluminum, etc. Metal hose printing is completed by using the principle of indirect rubber roller transfer

the process flow of hose printing is:

punching hose annealing printing primer ink drying printing graphics and texts drying

hose printing because the substrate is non-ferrous metal, it is necessary to print a layer of white ink or other background ink on the surface of the hose before printing graphics and texts) and then officially print graphics and texts. After printing the background color, the ink needs to be dried quickly. The next few colors can be printed, so the printing color is dried by infrared drying device and low concentration of other oxidation products and hydrogen cyanide 3 Piston stroke of loading hydraulic cylinder: 1000mm (can be increased) reprint graphics and texts. The traditional printing is realized on the paper of imprinting Zhuang Jian, but the imprinting on three printing plate rollers, and overprint on the rubber quilt cylinder at the same time (because the imprinting is on the ground due to the more price advantage, the overprint does not overlap), and then transfer the three color ink imprinting to the hose on the imprinting roller at one time. The imprinting roller on the imprinting roller disc is sleeved with a hose, but it will not rotate itself. It can rotate at the same linear speed with the rubber roller only after it is in self-contact with the rubber roller. The diameter of the imprinting roller disc is the same as that of the rubber roller, but the operation is different. The rubber roller rotates for one week, and the imprinting roller disc rotates for 90 to complete the printing of a hose

flexible tube printing generally adopts relief printing. The pictures and texts on the printed plate are printed on the roller wrapped with rubber blanket, and then transferred to the flexible tube. In case of multicolor overprint, the ink on each printing plate is overprinted on the rubber drum in turn, and then the impression of multicolor ink is transferred to the hose at one time. The printing plate used for hose printing is usually copper plate. Lo said that because copper plate has high printing resistance, the plate making method is the same as that of ordinary copper zinc plate

most of the hose printing machines adopt assembly line operation and are linkage printing machines. It is mainly composed of a printing plate cylinder, a rubber cylinder, an embossing cylinder disc with a hose, an ink bucket, and a conveying mechanism. The metal hose is sleeved on the impression roller of the impression roller, and rotates by friction when it contacts the rubber roller. The hose rotates for one cycle, leaving the rubber drum to complete the printing of a hose. The printed hose is irradiated with infrared ray to dry quickly

the ink for metal hose printing should not only have heat resistance and light resistance, but also meet the above conditions because the hose will encounter extrusion and twists, and often encounter water and humidity. Different substances are contained in the hose, and the ink must also be able to resist the erosion of these substances

laminated hose is the respective advantage of two substances. Laminated hose is laminated to make it have both advantages. For example, laminated hose made of aluminum foil and plastic film has the advantages of moisture resistance and weather resistance. It can be printed first and then laminated, so that pictures and texts are in the plastic film, and the appearance is very beautiful. At the same time, it can be processed and formed after printing, which changes the method of forming first and then curved printing, In this way, plastic printing can be carried out by photographical intaglio, and laminated hoses can be formed by lamination and molding

plastic hose printing can only be printed after surface treatment because the ink adhesion of plastic is very poor. At present, foreign countries adopt the hot press transfer method to print pictures and texts on the transfer paper (i.e. coated kraft paper), and the color sequence is the opposite color sequence of color printing. Then, a layer of substances that can produce adhesion after heat treatment is coated on the printing surface, and then the transfer paper with pictures and texts is contacted with the curved surface for transfer printing under hot press

in recent years, the proportion of plastic hoses and laminated hoses (made of aluminum foil and plastic film) in packaging and printing has been increasing. They can be printed first and then formed or printed by hot press transfer