Testing The Surface Coating & Printability Of Paper

As a supplier of paper coating testing equipment, we strongly believe that the print quality of the paper greatly depends on the roughness of the paper surface. The basic properties of the fiber surface undergo changes during the production of paper. The resultant characteristics like absorption, thickness, and permeability of the paper thus affect the printing quality besides the used ink, press, and human efforts.

Hence when it comes to testing the integrity and surface structure of the paper, manufacturers must rely on appropriate and efficient machines. UECIN’s surface coating and printability testing machines are the first choices of a number of manufacturers and laboratories. Let us look at the wide catalog of these machines in the following section.

UECIN’s Surface Coating & Printability Testing Equipment

Fluff Tester

The fluff tester is designed for determining the linting tendency or short fibers of the non-coated printing paper. This outstanding method gives accurate results and helps in maximizing the chemical-linting ratio. One can even get a special black filer paper, a high-capacity vacuum filtration unit, and a filtration membrane along with this machine.

The fluff tester comes in two kinds of models:

The Patra type

The GFL type

Bar Coater

The bar coating is designed to coat the substrate or paper using a steel wire wound bar. Here a uniform coating is applied under controlled conditions and at a specific speed. The wire around the bar comes in different diameters which determines the thickness of the layer of coating. These coatings can be paints, printing inks, adhesives, varnishes, starch, etc.

Paper Testing Waxes

The paper testing waxes are used to determine the strength or resistance to picking of the coated and uncoated paper surface. These wax sticks consist of hard resins and adhesion-rich non-oily waxes. However, they can neither be applied on blotting papers nor on coated papers whose coating adhesives have thermoplastic resins.

Coated paper manufacturers, paper coating inspection companies, and lithographers can make use of these waxes.

Printability Tester

The printability tester is used for lab testing of paper and ink under deliberately created actual conditions as in printing. It is thus designed to simulate letterpress, flexo, and gravure printing. The machine accurately tests the surface strength, printing penetration, abrasion, etc. It consists of printing discs, an interval timer, and varied speed and printing pressures.

Laboratory Calendaring Machine

It is truly a useful machine for conducting calendar experiments and tests in laboratories and therefore an ideal choice for manufacturers and labs. This electrically driven equipment has a hard base, a thermostatically handled top steel roller, and a control panel.

Conclusion

These surface coating instruments are high capacity and efficient in performance. Learn more about the functioning of surface coating and printability testing machines on the official website of UECIN. Invest in them today to boost related operations and provide quality products to your customers. Get in touch for purchase inquiries.

Universal Engineering Corporation is an organization which designs and manufactures a wide range of testing instruments for pulp, paper & packaging industries