Soft Package Is the most important packaging industry category, the output value of flexible packaging products for more than half over the packaging industry. All kinds of paper, plastic, paper, plastic aluminum are widely used in flexible packaging leisure Food , Dry goods, baked goods, candy, chocolate, frozen slices of fresh food, frozen food, coffee, tea, powder loading of food, bags of drugs, Hardware Parts and other goods.

Order to ensure food and drug safety, food, pharmaceutical flexible packaging print production date, product lot number and other real-time information, has become the food, pharmaceutical production an important part of the process. Real-time information enables manufacturers to track products when needed, and provide protection when the mass recall of products, it can be said, a code technology has become a modern quality system is an important part.

Flexible coding technique introduced Traditional coding techniques rely on flexible letterpress printing, using a character set up the shelves of a character image. Image mechanically embossed or printed to a film roll on the surface. Toppan Printing

common coding techniques, including hot, wet ink and a touch dry ink Coder .

Recent years, continuous inkjet printing system (CIJ) is also flexible on access to applications. Inkjet print head through the ink jet code printing machine, in the primary packaging and Box Print on a variety of data, including a simple date code, logo, bar code and serial number.

Traditional letterpress printing technology and continuous inkjet printing systems have their advantages, but also has many disadvantages, such as the traditional hot ink wheel code printer ribbon coding machine and not real-time printing, to manually update the date and batch numbers, so that traceability is limited; in printing, there is no standard LOGO, bar code or rotate images printed, each print of the characters need a character. In production, pre-heat ribbon coding machine operation required “warm-up time” to change the information required “cooling time”, which will cause the extended production time, and once a character is not exactly the level of alignment, it will cause packaging membrane perforation. In addition, a character will print the results of wear or loss can not be read, and hot carbon ribbon in the relatively short length, the average length of ribbon made only 100 m; ink Printer The ink needs time to dry or may produce stains, stains require special cleaning fluid for cleaning, and most of the ink required to preheat (up to 30 minutes after heating ink coding), coding changes required before the contents cool.

Continuous inkjet printers have a wide application, simple operation, but the characters, character options, logo or bar code functionality is limited, print quality general, print direction to move in the same direction with the substrate, and require regular cleaning to print first, regular replacement of filters, cleaning inky floors, machinery, transport belt, etc., the use of special inks and solvents often contain harmful substances, such devices may require exhaust ventilation. The latest laser and digital thermal transfer coding machine, you can greatly improve the problems of traditional coding machine, in particular digital thermal transfer coding machine, to improve coding quality, can improve product traceability improve equipment reliability and flexibility for a variety of flexible packaging materials.

Number of technical advantages of thermal transfer coding

Technological innovation usually means that new technology can bring higher quality, faster production speed, lower cost, more reliable operational performance and higher value-added products. Digital thermal transfer coder mainly by the print head, print ribbon, and controller. Each print head typically contains 8 to 12 mm points, or 200-300 points per inch (DPI), these points can be quickly continuous switch to transfer the ink from the ribbon to the film, to print the image. As the use of digital means, coding machine can “live” print, and can very quickly change to intermittent and continuous packaging batch number and date information.

Thermal transfer coding machine mainly uses two print head: flat head and bevel type. One flat head type print head is older technology, although low cost, but the print image resolution and print speed is not ideal; bevel type a new print head technology, providing faster speeds and higher resolution printing. Some of the newly introduced thermal transfer coders are mostly used angle-type printing head, such as Markem’s SmartDate and 18 series of thermal printers.