To gloss varnish or not to gloss varnish the single black color instruction sheets actually has nothing to do with the color printing. It actually depends on the instruction sheet’s design, content, the quality of the materials used, the printing process and the delivery, how important it is to the company to use packaging, and their budget.

If art paper or matte art paper is used in the printing of single black color instruction sheets, then it is recommended that gloss varnish be applied. These two types of paper, in comparison to wood free paper, have less of ability absorb the ink and are harder to dry. If the instruction sheet design does not have blocks of ink or does not use a very dark base color, then it is not necessary to gloss varnish the product. If the instruction sheet contains figures with darker images or blocks of ink, then we would recommend that gloss varnish be applied. Otherwise the product will run the risk of being scratched, the ink rubbing off, or the ink will leak through the pages.

After the printing is finished, the instruction sheets need to be further processed by folding machines, saddle stitching machines, and trimming machines before in emerges as a final product. Due to the numerous steps that it will need to undergo, it is common to see scratching, ink rubbing off, or leaking, these are actually not avoidable by the workers. Also, sometimes customers request an urgent printing and also have a high expectation of the product’s quality. Some factories will rush to complete the order, and will neglect to way for the ink to completely dry to start the next process, this will cause the creation of sub-par products. During the moving and shipping process, when the ink hasn’t completely dried, the rubbing of the paper against paper. or machine against paper will cause some of the ink powder to fall off; when the sheets are stacked on top of one and other, the leaking will occur. Sometimes the lighter ink rubbing off may be removed by a rubber eraser during quality check. But if leaking or scratching occurs, the product then will have be discarded. If the amount of prints isn’t enough, then more will need to be printed. The process of reprinting will ultimately delay the shipment and delivery date, and will cause the supplier to bear economic losses.