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DOCTOR BLADE

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A DOCTOR BLADE is a consumable part installed in gravure printing machine or flexo printing machine. It is a thin plate
of metal or resin. In the way of contacting with a cylindrical moulding plate, this blade tip pushes the ink to the concavo-conv
ex part and rakes out the surplus ink in other parts than the concavo-convex part.
Depending on a printing machine’s type, ink’s property and viscosity, and a required precision etc, there are many kinds of
doctor blades. HITC has many kinds of doctor blades and can provide the best model to meet the operator’s printing condition
and requirement.

REGULAR TYPE

Printing accuracy is determined by the effects of the film, paper quality, ink properties, cylinder precision, correct
doctor blade pressure, speed of rotation and so on. The blade tip that comes in contact with the cylinder is ground and
polished to a highly accurate and constant angle, using a high-precision endless grinding machine that we developed
for this purpose.

Features

  • · Enable continuous printing for long periods.
  • · Stable printing and trouble-free.
  • · Reduced cylinder abrasion.
  • · Improved printing operator’s work efficiency.
  • · Best working blade and economic price. 

COATING TYPE

This type is developed by applying the ceramic coating technology to the traditional Doctor Blade which has long been
popular in the gravure printing industry. This types of coating are all produced using a new surface treatment technology.
An appropriate amount of fine particulate (powder) is added to an electroless nickel coating solutions, and the base
compound and fine powder are together dispersed within the composite film. The coating formed on the blade surface
is strongly adhesive, uniform and tough.

Features

  • · Virtually no scumming during printing.
  • · Virtually no inconsistency in density irregular or hazing.
  • · Greatly reduced abrasion of a Doctor Blade and long extension of a blade's life.
  • · Improved operating rate by the shortened machine downtime by blade replacement.
  • · Be usable for water-based ink
  • · No rust

SPECIAL TYPE

As a doctor blade for printing, this is newly developed special type’s blade.
This blade is superior to heat and wear resistance because particular kind of elements are added such as chromium that
is effective to improve rust preventive property and wear resistance, molybdenum that provides preventive property
against coarsening of grain size at high temperature and tensile strength improving at high temperature.
This blade provides appreciable results to solve problems occurred in pearl series ink, etc.

EDGE TYPE