Label printing technology inventory (3)
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
Flexo: Bulk and environmental protection
What is flexo printing: Flexographic printing is a branch of letterpress printing. Flexographic printing is similar in printing principle to letterpress printing, except that it is different from traditional letterpress printing in the printing plate, ink composition and imprinting process. The transfer of the image is done by a photo-chemically reactive printing late or a patterned rubber stick. Originated in the United States in the early 1920s, early use of aniline inks was toxic and failed to develop. Since then, the ink manufacturer has begun to use the acceptable coloring agent, which was renamed the Flexographic Process at the 14th American Packaging Symposium held in 1952.
Main advantages:
1. The substrate has strong adaptability;
2. printing speed: usually the normal printing speed of the flexible version can reach more than 100 m / min;
3. The UV ink or ordinary ink used is environmentally friendly;
4. the amount of ink is large, the saturation is good, suitable for large color blocks, freehand design, soft gradient, good blur effect;
5. more suitable for standardization: through the mesh on the anilox roller to transfer the amount of ink, you can adjust the amount of ink by changing the anilox roller, once the appropriate anilox roller is selected, the color difference changes little during the printing process, to a certain extent Can reduce the basis for the operator's experience;
6. has a wealth of post-processing, easier to achieve the need for combined printing.
Limitations:
1, in the small text and lines, dot gradient, the relative letterpress and lithography is not fine and soft;
2. The body of the flexo printing machine is long, and the material loss of the machine is large;
3, the plate making requirements are high, the version fee is high, there are certain requirements for the number of printing, and the short-term profit margin is small;
4. The plates and raw and auxiliary materials have not been domestically localized, and most of them still rely on imports;
5. the use of water-based ink, when the speed is too fast, the drying is not timely, when cutting into a single sheet, the connection is easy to make mistakes;
6. overprinting accuracy, dot reduction is not as good as offset printing.
Applicable fields: Suitable for large-volume printing of paper, plastic and self-adhesive labels.
Future trends: Offset printing, gravure printing and other printing methods are pre-emptive. People are accustomed to comparing the advantages of these printing methods with the disadvantages of flexographic printing. The characteristics of flexographic printing are often overlooked. In fact, foreign experience has long proved that flexo printing can print high-end prints. However, there must be corresponding equipment and corresponding raw materials for the plate as well as mature processes and high level operators. With the continuous improvement of people's living standards, it will promote a new round of technological innovation in flexographic printing. The innovations of flexographic printing mainly include: 1 shaftless independent drive of flexographic printing machine; 2 widely used sleeve technology; 3 digital plate making; 4CDI imaging technology; 5 automatic register control technology; 6UV drying technology. With the localization of flexographic printing plates and raw materials, the cost of flexo printing in China will be lower and lower, and the prospect of flexographic printing is bright.
Combination printing: the leader of the family
What is combined printing: Combined printing refers to the printing production of various types of printing and finishing units into a production line. The more common combinations are screen printing, flexo printing, embossing, offset printing and hot stamping units. As the combination printing method adapts to the needs of the development of the modern printing industry, it has brought huge profits to the printing manufacturers, so it has developed rapidly. According to industry insiders, with the continuous development of related technologies, combined printing will gradually develop into a mainstream way of label printing.
Main advantages:
1. Online processing of each product at the same time, the production efficiency is high;
2. It saves the number of added and discharged waste products and reduces the loss rate of printed matter;
3. The combined printing press has a compact structure, a small machine footprint and convenient operation;
4. Less operators;
5. The total investment in equipment is small;
6. Increasing the difficulty of counterfeiting is conducive to anti-counterfeiting, while improving the quality and grade of prints.
Difficulties in combined printing processes:
1. Calculation of the amount of registration scaling between different printing methods;
2. Ink control is difficult;
3. It must be ensured that the order between the units of the combined printing press used is sufficiently variable;
4. Set the speed of the printing unit according to the printing requirements;
5. The quality of the operator is high.
Future trends: At present, the combination of glue, soft, concave, convex and screen printing has pushed traditional labels and trademarks to new heights; digital systems have opened up new markets for labels and trademarks. In the field of packaging, a single printing method has become increasingly incapable of adapting to market demand. In the next 5 to 10 years, the combined printing method will achieve faster development. The development of combined printing is still in its infancy, and many technical and material problems need to be improved and improved. As printing becomes more and more personalized and diversified, the application of combined printing will become more and more extensive.
Applicable fields: mainly used for cigarette labels and washing, and has strong anti-counterfeiting functions.
Digital Printing: Frontiers and the Future
What is digital printing: Digital printing is a comprehensive technology that covers many technical fields of printing, electronics, computers, networks, and communications. The so-called digital printing means that the electronic files are directly transmitted from the computer to the printing machine, thereby eliminating the steps of color separation, imposition, plate making, and commissioning. It brings the most efficient way to printing: from input to output, the entire process can be controlled by one person to achieve a print. Such a small amount of printing is very suitable for four-color proofing and multi-variety printing at a reasonable price. Digital printing has realized the concept of “distribution first, then printing”.
Advantage:
1. No need to make plates, one print, improve production efficiency;
2. The number of printing is controllable, reducing production costs;
3. High-precision images up to 230 lines per inch can be printed, greatly enhancing the aesthetics of the label;
4. Variable data printing;
5. Can achieve the spot color printing of the label;
6. Wide selection of label materials;
7. Increase the anti-counterfeiting function of the label.
Limitations:
1. The quality of various inks and papers in China is uneven, resulting in a wide range of printing cost prices, with obvious differences;
2. The digital printing machine OEM type of paper feeding and ink supply method makes digital printing not have the conditions to lower the price, so it is difficult to adapt to low price competition;
3. As the most typical advantage of digital printing - the space for personalized printing has not yet been developed;
4. In short-run printing, digital printing needs to be better aligned with offset printing;
5. The high-automatic operation mode of on-line processing is the biggest feature of digital printing, but the domestic labor surplus causes the production cost to be too low, and does not have the conditions to stimulate the widespread application of this technology.
Future trends:
Depending on the digital technology used, digital printing systems with different functions can be designed in the future:
1. The combination of simple CTP technology and small offset printing technology forms a non-integrated digital printing system;
2. The digital printing system is realized by the combination of machine silver salt plate making technology and small offset printing technology;
3. The combination of high-speed inkjet technology and small offset technology enables an inexpensive digital printing system.
The development of digital quick printing has enabled the public to quickly recognize digital printing and taste the benefits of using digital printing, but it has also brought the public's understanding into a misunderstanding, that is, digital fast printing is equivalent to digital printing. In fact, digital printing itself has 80% of the market. Digital printing and offset printing are two different customer groups. With the development of technology, these markets, including personalized printing, variable data printing, and on-demand publishing, are not possible with traditional printing.
Applicable fields: washing, alcohol, drug label, etc., the field is expanding.