Jacket printing nylon ink application skills

Every factory engaged in jacket printing claims to have some expertise that ensures success. Most technologies are centered around improving adhesion. Some printers try to reduce the deposition of ink, which they believe will improve surface adhesion. Others believe that nylon must be properly "treated," which includes rinsing or dipping nylon surfaces with isopropanol or acetone, or nylon passing through a dryer before printing. These technologies are not very practical for high-volume printing services, but they have their own advantages and should be considered.

During the fiber production and subsequent production of the jacket, some materials can be coated on the nylon, the three commonly used, ie, silicone, softener and glue.

Waterproofing and gloss increase with silicone, but it destroys the adhesion of the ink. The most common is wipe the nylon material with isopropyl alcohol or acetone to reduce the effect of silicone. The traces of this treatment will be left on the garment until it disappears after the first washing or dry cleaning.

Some nylons, such as those used on taffeta, are primarily soaps, which also destroy the adhesion of the ink. They form a barrier around the fibers and prevent the ink from coming into contact with the nylon. When the clothes are washed, the soap dissolves in water, sometimes taking a portion of the image in the wash solution. If the nylon is obviously soft, the printer just needs to pre-wash the jacket before printing.

The paste, especially the acrylic paste, decomposes when exposed to heat and completely loses its adhesiveness after curing with heat or flash. Prior to printing, the jacket is preheated by the drier to decompose the paste. Some printers also pre-wash after preheating in order to ensure that all residues are removed.

These pre-production preparations are time consuming and expensive, but jackets do not use these materials and they are cheaper than defective ones.

Another way for printers to improve adhesion is to maximize ink penetration into textile fibers. The purpose is to close the fibers in a manner very similar to filling and surrounding the mesh with the direct emulsion to achieve stronger mechanical adhesion. In theory, the maximum penetration of the ink, the impurities on the fiber is irrelevant, because once the ink is cured, the impurities are fixed in place.

The main variables of screen printing can be controlled to increase ink transfer. However, it should not be confused with deposition and penetration. The goal is to get the ink into the fiber, not the fiber. The viscosity of the ink, the number of screen meshes, and the diameter of the cable can be varied and balanced with slower squeegee speed and greater squeegee pressure to achieve the desired effect. However, the printer must know that when using this technology, the mesh should not be too large, otherwise the image cannot be supported, the ink cannot be too thin, and it is too thin to flow to the non-image area. Finally, excessive penetration can damage or soil the jacket.