Interpretation of new textile printing technology and classification of special printing

【HC Silk Screen Printing NetworkReport]Printing is a comprehensive process that involves a variety of advanced technologies. With the continuous improvement of printing technology, new fibers, especially polyester fibers and reactive and disperse dyes With the advent of textile printing one after another, fabric printing has entered the palace of technology from a craftsmanship workshop and achieved unprecedented achievements.

Traditional printing techniques mainly include roller printing, rotary screen printing and flat screen printing. There are many traditional printing production processes. The “five-ring relationship” of the traditional printing industry is “plate making and screen making”, “toning paste adjustment”, “machine printing”, “pattern design” and “post-processing”. These five production links are Relatedly, any disconnection will directly affect the quality of printed fabrics.

Traditional printing water consumption links mainly include color fixing, soaping, water washing, etc. These links are indispensable, and sewage Emissions are also inevitable. As the water crisis approaches and environmental pollution becomes increasingly serious, traditional printing technology will face increasingly stringent restrictions. Traditional printing technology has made great improvements in environmental protection, but due to its own production process characteristics, it is impossible to fundamentally eliminate pollution.

Due to the many printing production processes, complex types of work, large number of employees, high processing technology requirements, and low production efficiency, so in There is also a lot of room for change and improvement in the entire printing production.

Development of new printing technology

Ecological printing is a need for development. Printing technology is developing in the direction of environmental protection, energy saving, and consumption reduction, which is in line with the “ecological, efficient, high-quality, and multifunctional” characteristics of today’s textile dyeing and finishing processing, and is also the need for future textile development. Many ecological printing technologies have emerged.

1. Digital inkjet printing technology

Digital printing is a new concept proposed in 1997. Digital inkjet printing is a combination of machinery, electronics and information. It is a high-tech technology that integrates processing equipment. Its emergence is another printing technology revolution after embossing printing and screen printing. It uses a special machine digital inkjet printing machine to directly spray dyes on textile fabrics to quickly form high-quality fabrics. Precision color patterns free designers from the framework of production technology and process conditions, and people can design ideas according to their own wishes, change combinations and directly print, which is currently developing rapidly in the direction of industrialization.

With the application of advanced printing technology, the rose patterns caused by ordinary printing are completely eliminated. Jet printing equipment is simple, easy to operate, relatively cheap, occupies a small area, is easy to use, and adapts to the requirements of personalized clothing products. This technology does not require plate making, and does not require humid and dirty working environments such as color paste preparation and pattern washing. The pulp is prepared according to demand, with less residual color paste. It is easy to wash after printing and consumes less water. It can greatly reduce the amount of sewage discharge. Inkjet printing technology enables the production of textile printing to get rid of the traditional production of high energy consumption, high pollution and high noise. The process realizes a green production process with low energy consumption and no pollution, and is currently the most competitive printing method. However, due to reasons such as the slow printing speed of ink and equipment, large-scale production has not yet been achieved. However, equipment manufacturers are working hard to solve the problem of vehicle speed. It is reported that it can reach 20m/min; in addition, the fabric must be pre-treated during the printing process. And printing post-processing, so it inevitably consumes water and will still produce certain pollution.

2. Electrostatic electronic printing technology

Electrostatic printing is a novel printing process developed in recent years. It is developed by 4 companies including Kyoto and Ricoh in Japan. It was successfully trial-produced in Japan in November 2002. It uses a relatively simple electrostatic device, that is, a certain distance is maintained between the printing paint and the fabric. Without direct contact, due to the electrostatic field,��Allows the ink to transfer to the fabric. In order to ensure that the printed pattern has a certain color fastness on the fabric, post-fixing treatment must be performed after the copy is completed. Due to the high speed of electrostatic printing, patterns can be printed directly on fabrics at one time, which is simpler and more convenient than other printing methods currently used. It is a novel printing method with development potential; and electrostatic electronic printing has high efficiency and short process. , low cost, less environmental pollution and other advantages, it is the preferred printing method for ecological textile printing.

The electrostatic electronic printing device is completely different from the jet printing machine. It does not use nozzles and the operating rate is 20% higher than that of jet printing. Above, the resolution is 720dpi, the production speed is 50 times that of the jet printing machine, and the price of dyes and inks required per square meter is 1/200 of that of jet printing. It will bring about great changes in the printing process in the 21st century.

Editor in charge: Chu Meihui

[HC Information Mobile Client Download]

Previous page 123Next page

AAEHRYJUTUTHYER

Disclaimer:

Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.