Patent ID: 8613972

Claim:
A process for measuring on a counter roll a pressure profile in a cross-machine direction where a coating is applied to a paper or board web and so as not to form a nip at a line of contact between the paper or board web and the counter roll where the coating is being applied and the pressure profile is being measured, comprising the steps of: passing a paper or board web over a counter roll having a pressure-sensitive film sensor disposed thereon, the paper or board web forming an overlap angle as it wraps the counter roll; applying a coating to the web as it passes over the counter roll such that the coating is applied directly to the web within the wrap angle by a coater not forming a nip at a line of contact between the paper or board web, to thereby apply a pressure profile in a cross-machine direction to the counter roll and to the pressure-sensitive film sensor disposed thereon; and measuring the pressure profile by the pressure-sensitive film sensor along a line of contact where the coating is applied to the web without forming a nip in an overlap range between the web and the counter roll.