Very cool, I was winder crew for 22 years, went through modernization twice, love your stuff. I’m retired old Papermaker, miss the “ thinkin” part of my job. The new stuff is amazing, hoping to find the biggest baddest newsprint winder in the world to show my Son, GRAMPS was a Papermaker too. Cmon up n go fishin, did some guiding for Corporate back in the 90s.
By far, the most common is a web that has a basis weight / caliper / thickness profile that is low on the roll edge that stars. Less common is rough roll handling and poor roll structure (winding tight over loose). Like telescoping, wrinkling, core crush and many other defects, the same outcome can have distinctly different causes/cures. It is the job of the troubleshooter to first determine which of the three causes for starring (or 20 causes of wrinkling or 5 causes of telescoping or 3 causes of core crush) is present. Once that is known, the remedy list is trivial to make.
Very cool, I was winder crew for 22 years, went through modernization twice, love your stuff. I’m retired old Papermaker, miss the “ thinkin” part of my job. The new stuff is amazing, hoping to find the biggest baddest newsprint winder in the world to show my Son, GRAMPS was a Papermaker too. Cmon up n go fishin, did some guiding for Corporate back in the 90s.
Thanks for watching!
Sir, I want to know 'star defect'
could you explain the defect
By far, the most common is a web that has a basis weight / caliper / thickness profile that is low on the roll edge that stars. Less common is rough roll handling and poor roll structure (winding tight over loose). Like telescoping, wrinkling, core crush and many other defects, the same outcome can have distinctly different causes/cures. It is the job of the troubleshooter to first determine which of the three causes for starring (or 20 causes of wrinkling or 5 causes of telescoping or 3 causes of core crush) is present. Once that is known, the remedy list is trivial to make.