Print Surface Roughness Tester

About Print Surface Roughness Tester

This Print Surface Roughness-Smoothness Tester is immensely used for testing the smoothness of print surface under certain load conditions. It is intricately manufactured by using high-end machines as per the set quality norms. It is microprocessor controlled instrument available in various models and technical specifications. The test result generated with this tester has shown excellent correlation with print smoothness by using offset ink. Apart from this, Print Surface Roughness-SmoothnessTester is known for their unique features like robust and compact structure, low power consumption and trouble-free operation.

DESCRIPTION:                     

Print Surface Roughness/Smoothness Tester measure the roughness / smoothness as per the condition apply in the printing press nip at the moment of printing, by clamping the sample between a precise measuring head and a specially backing assembly with variable clamping pressure.

Roughness/Smoothness of a sheet of paper or board is a function of the rate at which air will pass between specified flat land and sheet of the paper or board tested under specified conditions. The property is termed roughness/smoothness if increasing numerical value indicates increasing roughness/smoothness.

The roughness/smoothness of the sample is calculated in micrometers on calibrated air flow meters (Rotameters).

ADVANTAGES:

Surface roughness is very much interest for good printing results. The layer of ink must be thicker than the roughness to give a good and glossy print. The amount of ink used is not only a cost but also influence the drying time and thus the risk is set off. With more ink there is also bigger risk for print through problems. When lamming paper with metal foil or with plastic film, the overall results depends very much on the surface roughness of the base paper used.

APPLICATIONS:

Used for writing / printing paper, newsprint, coated paper and other similar grade of paper.

TECHNICAL SPECIFICATION: