The key factor of high quality printing on white ink direct jet machine

White ink direct injection machineAfter these years of rapid development, the industry has transitioned from a growth stage to a mature stage. Generally, at this stage, the industry begins to stratify. Some companies are high-quality companies, high-quality digital printing machines are selected, and some are low- and medium-quality ones. , Choose some "cost-effective" models, this article only discusses a few key factors of high-quality digital printing paper machine:

First, explain the fabric requirements for high-quality digital printing machines:

1. Physical and chemical testing indicators of fabrics

Second, the degree of fine pattern

Three, color consistency

Fourth, continuous productivity

Based on the above four aspects, we will separately elaborate below:

One: The physical and chemical testing indicators of the fabric, in addition to the fabric itself, the main physical and chemical indicators in the transfer process come from the ink, related to sunlight, dry/wet rubbing fastness, perspiration fastness, and azo, heavy metal content and other indicators At present, the light fastness of low-temperature disperse dyes is generally low, so it will be a little difficult to make outdoor products, and there will be some problems in overseas transportation. Other indicators perform well. In addition, the physical and chemical testing indicators for cotton and linen printing processing and paper coating The layer also has a certain relationship. Whether the paper coating leaves harmful substances on the fabric or not affects the detection index of the fabric. So to sum up, the selection of high-quality ink and paper is very important for digital printing production!

Two: The fineness of the pattern of the digital direct-injection equipment. Although digital printing is not limited by flower back and color, many exquisite designs also bring challenges to digital printing. There are two aspects that affect the accuracy of the pattern. 1. The accuracy of the print head. Generally speaking, the accuracy of the print head is below 5pl, which is suitable for high-quality order requirements and is variable ink drop printing. 2. The flatness of the printing platform/paper transmission Structure, this aspect is mainly related to the continuous flatness of the paper on the printing platform. The unevenness of the paper will directly affect the printing accuracy and even cause color difference.

Three: Color consistency. This is related to printheads, inks, software, and stand-alone productivity. First of all, different printheads have different chromatic aberration performance in printing. Whether the ink is stable and whether the consistency is maintained has a direct effect on the color. Different choices of rip software , There are differences in color noise, color gradation changes, and color tracking, and the color consistency of single-machine production is much higher than that of multi-machine production.

Four: continuous productivity, digital printing machine printing orders generally have a pattern of thousands of meters, whether the ink is broken during the printing process, whether the retracting system is stable, and the retracting system is tidy, these factors are very important to the quality of the printing, and this is also related The product qualification rate, negative pressure ink supply, and degassing device of the fabric printing processing printing plant ensure printing to the greatest extent. The air expansion shaft solution has become one of the high-speed and stable industrial-grade standard equipment.