Digital Ink Jet Printing Process

It is a systematic project whose key technology is the research and development of equipment, software and color ink.

The high speed conduction type digital inkjet printing machine adopts 6 Advanced American industrial grade stainless steel piezoelectric sprinklers, the highest printing speed is 40m/h (60dpi, 4 colors), and the highest inkjet printing accuracy is 080dpi.

At the same time, it supports a variety of professional ink and fabrics, and can control the size and speed of droplets by software and hardware control technology.

The industrialization of digital ink jet printing has been realized.

The technology of digital inkjet printer involves digital inkjet printing equipment and production methods and processes. It is a combination of hardware and software. The software part includes textile pattern collaborative design technology, RIP control technology that is suitable for many kinds of textiles. The hardware includes digital jet printing mechanical and electrical structure.

VEGA high speed digital inkjet printing machine includes belt conveyor type medium conveying device, ink-jet printing device, ink supply device, conduction belt correction device, synchronous lifting device for ink-jet printing device, cleaning device for conduction belt surface, and adhesive device attached to the conduction belt.

The VEGA system adds 4 bit RGB to 6 bit RGB format conversion on the basis of traditional image compression technology, and proposes a new effective coding compression method for collaborative design of shared patterns.

Digital ink jet (reactive, acid) printing process.

Fabric digital inkjet printing is only part of the whole printing process, and it needs matching pre-processing and post-processing equipment to complete it.

Fabric pretreatment, pre press drying, flatting, ink jet printing, post printing drying, steaming, water washing, soap washing, water washing, drying.

Pretreatment process.

The choice of the pretreatment agent is different from that of the dye contained in the ink.

If some additives are added, the dyeing and fixing effect of reactive dyes can be improved, and the infiltration can be reduced.

Adding alkali agent sodium bicarbonate can accelerate.

In the steaming process, the faster the fixation is, the more difficult it is to infiltrate.

Sodium alginate is mainly used to prevent dye from seeping and drying, and to improve the fineness of printing.

Improving the wetting of ink or color paste to the fabric and ensuring that the dye has a good dissolution state when fixing the dye is also an important condition to ensure that the dye is fully dyed. Therefore, some surfactants are sometimes added to the pretreatment solution.

Fabric requirements.

In order to get bright and clear patterns, the fabric used for digital inkjet printing should have the following conditions: absorption of ink or color should be fast, and the dye can be infiltrated: allowing ink droplets to overlap, and sticky droplets will not flow and infiltrate: ink droplets can keep small and uniform size on the fabric, and the shape of ink droplets is round and smooth.

It can be seen that for the application of digital inkjet printing technology, the main measure to improve the printing effect is to conduct special pre-treatment of fabrics to reduce infiltration.

Spray printing process.

High speed conduction band

The advantages of the traditional printing machine have been absorbed, and the printing method of the shifting guide band has been adopted to meet the printing requirements of the entire fabric and positioning fabric.

On the one hand, the printed fabrics should be dried in a timely manner to prevent dye and ink from catching up. On the other hand, steam and water should be steamed in time to prevent dyes from being oxidized or oxidized after prolonged placement.

The post-treatment process is as follows: steaming (00 ~ 0 degrees, 5~45 min); cold water washing (anti soaping lotion g/L); cold water washing two; 80 degree soaping (neutral soaping agent g/L); cold water washing two channels to fixing soft (fixing agent g/L, softener%, room temperature treatment 5min) to dry (00 degrees Celsius).

Steaming equipment can be selected as continuous width steamer or drum steamer. As the cylinder steamer has bright coloured features, it is recommended to use cylindrical steamer.