Flexo printing is part and parcel of large-scale commercial printing industries. Many printing presses will favor the use of doctor blades for flexo printing. Doctor blades remain a key component of industrialized printing. Flexo printing, also known as flexographic work, as well as rotogravure, or just gravure, are using doctor blades to help control the amount of liquid ink that is left behind on a printing cylinder.
When it needs replacement, replenishment or improving, it remains important that the printing press’s machine minder is able to source the correct doctor blade. There may not be such a blade in store at the time that it is ordered. This is perfectly acceptable because it may well be better for the machine minder to have his new blades precisely prepared. All blade materials and its edged shapes do need to be engineered with precision in order to adapt to and compliment high performance-running printing presses, whether it be flexographic or rotogravure.
Apart from meeting the single printing company’s own production standards, it is also essential to remain closely compliant with the industry’s set standards. The composition of doctor blades is generally derived from steel. It remains a blade material of choice for its ability to produce high quality and repeat doctoring results. But these days, more use is being made of plastic alternatives as well as what are known as composite blades.
Such blades are also required for coating purposes. The motivation for turning to such blades has to do with being able to deliver cost-effective performances, also bearing in mind the overriding costs of running a printing press in any event. Plastic blades are capable of longer lifespans at high speeds. But it should not be surprising to observe that established firms will still be using steel.