Ink scraper are generally made of flexible polyester plastic, when the production of raw materials is liquid, after processing after slicing, slitting machine, grinding smooth finished product.For bulk purchase of ink scraper is commonly roll, when printing according to the actual need to be carried out in accordance with the specific size cutting.According to the shape of the ink scraper blade is different, can be divided into three categories: square head, pointed and round head.
Coach ink scraper: square ink scraper the most commonly used when printing planar substrates.The blade Angle is 90 °, the shape of the cross-section of rectangular, so called lag, its four edge strip can be used, usually choose the straight blade scraping, no defects.
Pointed ink scraper: point ink scraper most commonly used in the surface printing.Its blade has 45 °, 60 °, 70 °, such as several shape, under the condition of without considering printing ink viscosity, viscosity, ink scraper blade Angle is smaller, by the less ink plate, its mark is clear.But the smaller the Angle, grinding the harder, the service life of the ink scraper is short, so when using the acute Angle of blade scraping blade, should choose high hardness and wear resistance of ink scraper strip.
Round head ink scraper: round head ink scraper can also be divided into small round head scraper and truss head scraper, a large area ground printing fabric USES truss head scraper, and for low ink viscosity, printing precision is not high printing printing use small round head scraper.
In the printing process often appear a lot of scraper line mark in the main reason is ink mixed with rigid inorganic impurities, such as sand, caused by the solid particles embedded in the scraper blade line mark at the same time, ink, plate making, environment temperature, humidity, ink scraper scraper hardness etc, also will affect the quality of printing.Sometimes this kind of knife line mark also assumes the dotted line, the emergence of the scraper line mark printing and scraper is easy to damage.So when installing ink scraper must level off, careful, put a knife to check before scraper if there is a gap, must be carefully after install knife grinding, if there is a knife in the process of printing silk, must stop grinding again carefully, it is forbidden to sharpen oil mixed with ink.Manufacturers also must strengthen the governance environment at the same time, reduce the dust, as far as possible keep color printing environment closed, install the air filter and dust content verification, otherwise, it is difficult to produce high quality products.