PRINTING AND PAYING ATTENTION TO WHAT MATTERS
The information comes from：互联网 发布于：2021-02-25
IN RECENT YEARS, THE SUPERIORITY OF FLEXOGRAPHIC PRINTING HAS BEEN INCREASINGLY CONCERNED BY PEOPLE. THE POPULARITY IN THE FIELD OF PACKAGING AND PRINTING HAS BEEN VERY RAPID. IT USES DIRECT PRINTING, BRIGHT GRAPHICS, RAPID PLATE MAKING, SHORT PRINTING CYCLE, AND SIMPLE MECHANICAL STRUCTURE. ADAPTABILITY TO MATERIALS, FILM, PAPER, PLASTIC, PE FILM AND OTHER MATERIALS ARE SUITABLE AND RESISTANT TO HIGH PRINTING FORCE, PRINTING COLOR NUMBER, THE INK USED IS MOSTLY NON-POLLUTING WATER OR ALCOHOL INK, IN LINE WITH ENVIRONMENTAL REQUIREMENTS, THESE THE CHARACTERISTICS OPEN UP A WIDE RANGE OF APPLICATION PROSPECTS FOR THE PACKAGING OF GOODS, ESPECIALLY FOODS AND PHARMACEUTICALS. AMONG THEM, THE MOST OUTSTANDING ADVANTAGE OF FLEXOGRAPHIC PRINTING IS THAT IT CAN BE COMBINED WITH OTHER PROCESSES TO FORM A LINKAGE PRODUCTION LINE. THE TRADITIONAL PRINTING PROCESS IS A SINGLE SHEET OF PAPER PRINTED ON AN OFFSET PRESS AND THEN SUBJECTED TO VARIOUS PROCESSES AFTER OTHER PROCESSES, WHILE THE FLEXOGRAPHIC PRINTING PRESS CAN BE AFTER THE PRINTING UNIT HAS SET UP A POST-PRESS PROCESSING DEVICE FOR ON-LINE OPERATIONS, IT CAN INCREASE PRODUCTION EFFICIENCY, REDUCE COSTS, AND SHORTEN PREPARATION TIME COMPARED TO TRADITIONAL PROCESSES.
ACCORDING TO CALCULATIONS MADE BY RELEVANT DEPARTMENTS, DUE TO THE FAST START-UP SPEED OF THE FLEXOGRAPHIC PRINTING PRESSES, SIMPLE OPERATION, ENERGY SAVING, AND THE ABILITY TO COMPLETE MANY PROCESSES AT ONE TIME, THE OPERATING COSTS FOR PRODUCTION USING FLEXOGRAPHIC PRINTING ARE MUCH LOWER THAN THOSE OF OFFSET AND GRAVURE PRINTING MACHINES. ALTHOUGH FLEXOGRAPHIC PRINTING PRESSES ARE PARTICULARLY SUITABLE FOR THE PACKAGING AND PRINTING INDUSTRY DUE TO THEIR ADVANTAGES, THESE ARE ALL BASED ON THE OVERALL CONCEPT. IT REQUIRES A FLEXIBLE PRINTING PRESS TO BE OMNIPOTENT, NEITHER IMPOSSIBLE NOR ECONOMICAL. THEREFORE, IT IS VERY IMPORTANT TO PURCHASE FLEXIBLE PRINTING PRESSES ECONOMICALLY AND REASONABLY. IN GENERAL, THE FOLLOWING ISSUES SHOULD BE NOTED WHEN PURCHASING.
FIRST, MODEL SELECTION
AT PRESENT, THE FLEXOGRAPHIC PRINTING PRESS HAS BEEN CLEARLY DIVIDED INTO TWO CATEGORIES: NARROW WIDTH AND WIDE WIDTH, AND THE NARROW WIDTH AND WIDE WIDTH ARE ABOUT 600 MM. THE NARROW-WIDTH FLEXOGRAPHIC PRINTING PRESS IS MAINLY BASED ON PRINTING PAPER AND PAPERBOARD, AND MOST OF THEM ARE UNIT-TYPE CONNECTION PRINTING PRESSES; THE WIDE-WIDTH FLEXOGRAPHIC PRINTING PRESS IS MAINLY USED FOR PRINTING FILM, ALUMINUM FOIL AND OTHER MATERIALS, AND THE STRUCTURE IS MOSTLY SATELLITE TYPE OR LAMINATED TYPE. THE FORMER MAINLY DEALS WITH TRADEMARKS, FOLDING CARTONS, ETC., AND NARROW FLEXOGRAPHIC PRINTING PRESSES FROM BRANDS SUCH AS ALLIEDGEAR, KANGKE, MA ANDY, STEVENS, AND WEBTRON ALL HAVE POST-PRESS PROCESSING FUNCTIONS; THE LATTER MAINLY PRINTS VARIOUS KINDS OF COMPOSITE FLEXIBLE PACKAGING MATERIALS. PACKAGING BAGS, PAPER CUPS, ETC., BECAUSE IN THE FIELD OF COMPOSITE FLEXIBLE PACKAGING PRINTING, WIDE-FORMAT FLEXO PRINTING PRESSES HAVE GRADUALLY REPLACED GRAVURE PRINTING PRESSES, AND FLEXOGRAPHIC PRINTING PRESSES ARE DIFFICULT TO DISTINGUISH BETWEEN GRAVURE PRINTING SAMPLES AND FLEXOGRAPHIC PRINTING. THE COST (PRINTING PLATE, PRODUCTION EFFICIENCY, AND EQUIPMENT INVESTMENT) IS LOWER THAN THAT OF GRAVURE PRINTING, AND IT IS ALSO SUPERIOR TO GRAVURE PRINTING IN TERMS OF ENVIRONMENTAL PROTECTION REQUIREMENTS. THE PRINTING WIDTH IS 620 MM, AND IT CAN PRINT 6 COLORS OR 8 COLORS. IT IS VERY SUITABLE FOR SMALL BATCH PRINTS.
SECOND, THE MACHINE CONFIGURATION OPTIONS
IN GENERAL, THERE IS A PROBLEM OF SELECTING A MACHINE CONFIGURATION AFTER THE MODEL IS SELECTED ACCORDING TO NEEDS. IN PARTICULAR, THE UNIT-TYPE FLEXO PRESS HAS MANY CONFIGURATION PLANS FOR FOLLOW-UP PROCESSING UNITS. IT SHOULD BE SELECTED ACCORDING TO ACTUAL NEEDS, AND IT IS NOT NECESSARY TO CONFIGURE ALL OF THEM. FOR EXAMPLE, HOT STAMPING UNITS, COATING MACHINES, PUNCHING MACHINES, DIE CUTTING MACHINES, AND DIE-CUTTING CYLINDERS, ETC., WHICH DO NOT NEED TO BE CONFIGURED WHEN NOT IN USE, SO AS TO AVOID UNNECESSARY WASTE, THE VARIOUS COMPONENTS OF THE UNIT TYPE FLEXO PRESS CAN BE ADD CONFIGURATION AS NEEDED.
THIRD, THE NETWORK CONFIGURATION
ONE OF THE MAJOR FEATURES OF THE FLEXOGRAPHIC PRINTING PRESS IS THE USE OF ANILOX ROLLER FOR INK TRANSFER. THE CERAMIC ANILOX ROLL IS WEAR-RESISTANT, CORROSION-RESISTANT AND HAS A LONG SERVICE LIFE, BUT THE PRICE IS HIGHER. THE METAL ANILOX ROLL HAS LESS DURABILITY, BUT THE PRICE IS LOWER. SUB-PRINTS ARE FULLY AVAILABLE WITH METAL ANILOX ROLLERS; THE ANILOX ROLLER DOT SHAPES HAVE DIFFERENT PRINTING EFFECTS, WHICH CAN BE DETERMINED ACCORDING TO THE SPECIFIC PRODUCT; THE OTHER MAIN REASON FOR SELECTING THE ANILOX ROLLER IS THE NUMBER OF LINES. WITH DIFFERENT ANILOX ROLLERS, THE RATIO OF THE NUMBER OF SCREEN LINES FOR GENERAL PRINTS TO THE NUMBER OF SCREEN LINES FOR ANILOX ROLLERS IS ABOUT 1:4. IN ADDITION, THE PURCHASE OF MACHINES SHOULD BE NOTED THAT A MACHINE CAN NOT BE EQUIPPED WITH SEVERAL ANILOX ROLLER MACHINE, GENERALLY CAN BE CONFIGURED BY THE NUMBER OF UNITS 2 TIMES, SUCH AS A SIX-UNIT FLEXO MACHINE CAN BE EQUIPPED WITH 10-15 MESH ROLLER, THE NUMBER OF LINES OF THESE ANILOX ROLLERS SHOULD BE DIFFERENT IN ORDER TO USE WHEN PRINTING DIFFERENT PRINTS.
FOURTH, DIE-CUTTING DRUM CONFIGURATION
DIFFERENT PRINTS ARE EQUIPPED WITH DIFFERENT DIE-CUTTING CYLINDERS, BUT THE DIE-CUTTING QUALITY AND LIFESPAN OF DIFFERENT DIE-CUTTING CYLINDERS ARE DIFFERENT. DIE-CUTTING DRUMS ARE MAINLY OF THE WRAPPING TYPE AND THE INTEGRAL TYPE. THE INTEGRAL TYPE DIE-CUTTING DRUM HAS A LONG SERVICE LIFE, THE DIE-CUTTING QUALITY IS GOOD BUT THE PRICE IS HIGH, AND THE WRAPPING TYPE IS THE OPPOSITE; THE DIE-CUTTING METHODS ARE THE SHEAR TYPE AND THE PRESSURE-CUT TYPE. THE FORMER HAS HIGH PRECISION IN DIE-CUTTING, LONG LIFE BUT HIGH PRICE, WHILE THE LATTER IS THE OPPOSITE. THEREFORE, ACCORDING TO DIFFERENT PRINTS, DIFFERENT REQUIREMENTS AND THE NUMBER OF PRINTS TO DETERMINE WHAT KIND OF DIE-CUTTING DRUM.
FIFTH, THE CHOICE OF DRYING SYSTEM
FLEXOGRAPHIC PRINTING DRYING SYSTEM CAN BE ROUGHLY DIVIDED INTO HOT AIR DRYING SYSTEM, FAR-INFRARED DRYING SYSTEM AND UV CURING SYSTEM. THE USE SHOULD BE BASED ON THE PRINTING MATERIALS, THE USE OF INK AND THE WORKING ENVIRONMENT.
IN ADDITION, IF YOU WANT TO PRINT A GOOD PRINT IN ADDITION TO THE CORRECT MODEL AND A VARIETY OF CONFIGURATION OPTIONS, BUT ALSO TO STUDY THE SITUATION OF SUPPORTING EQUIPMENT SUCH AS THE QUALITY OF THE PLATE, THE INK IS GOOD OR BAD, NOT ONLY TO CHOOSE THE RIGHT EQUIPMENT AND A VARIETY OF MATERIALS TO HAVE GOOD MATCH. BECAUSE OF THE FLEXIBILITY OF THE PRINTING PLATE, THE PRESSURE IN THE PRINTING PROCESS WILL CAUSE THE DOTS TO BE DEFORMED, AND THE PRINTING PRESSURE IS DIFFICULT TO GRASP. THEREFORE, THE SCALING RATIO MUST BE TAKEN INTO CONSIDERATION WHEN MAKING PLATES.
