Paperless Digital Printing Technology

Paperless digital printing It can consume high-level products that are difficult to consume with traditional printing technology. As for natural fabrics such as cotton, because their natural fibers are hydrophilic and disperse dyes that can be used for digital printing are hydrophobic, it is difficult to separate them, so digital printing cannot be stopped directly for natural fabrics. However, digital printing of natural fabrics can be completed through the action of bridging agent. However, this paper-based digital printing process still has some defects. At the same time, paperless digital printing is to make dye into printing paste, and then print patterns on a special substrate by printing. After the substrate is pasted with the fabric and heated, the patterns on the substrate are transferred and fixed on the fabric to obtain printing waste.

As a novel textile printing process, paperless digital printing has played an important role in textile printing, and its printing products are also popular with consumers.

It does not consume paper, nor does it produce indirect water consumption and water pollution caused by paper consumption, which greatly reduces environmental pollution and conforms to the national strategic policy of sustainable development. More importantly, paperless digital printing technology saves precious energy (such as water resources) from the source, and nearly 50% of the cost of printing and dyeing consumption is energy consumption. Energy saving means reducing the cost of consumption.

The printed patterns are fine, clear, rich and natural, and can print products similar to photos and paintings. First of all, paper based digital printing requires paper. For example, printing 1 m cloth requires 1 m paper, which not only consumes a lot of paper, increases the cost of consumption, but also indirectly brings water and energy consumption, and will cause environmental pollution; Secondly, ordinary paper-based digital printing can only print polyester fabrics, and cannot print on natural fiber fabrics such as pure cotton, which greatly limits its application range.

At present, paperless digital printing technology, after nearly 10 years of research process, and under the support of the National "Tenth Five Year" 863 Plan, after three years of research, has made a breakthrough in paperless machine. The bridging agent is generally non-toxic and biodegradable raw material Before printing, the bridging of silk, cotton, polyester and cotton fabrics can be suspended in advance, so that one end of the bridging agent can be separated from the fiber, and the other end can be separated from the disperse dye, which is like building a bridge between the disperse dye and the natural fiber, so as to complete the digital printing of natural fiber fabrics, expanding the range of digital printing of fabrics, And make the main indicators of printing reach or exceed national standards. Here, special substrates can be repeated

In addition, its plate making fee is expensive, which cannot be complied with personality The development demand of small batch and multi variety.

In order to ensure the industrial consumption of digital printing, the central link is the development of paperless digital printing machine, which must consider all possible problems and difficulties in advance and deal with them. Normally, the prototype of paperless digital printing machine has successfully stopped debugging and running, with good results, which will lay a good foundation for the success of paperless digital printing process, It also fully proves the ideal feasibility of paperless process industrialization, which will become a major development direction of digital printing in the future. Its main characteristics are: no need for steaming, color fixation, soaping and water washing, no consumption of steam, coal, water, paper in the printing process, and no sewage in digital printing.