ABSTRACT
The use of razor blades to slit webs into more narrow widths or to remove edge trim is still practiced on many converting machines today. Razor slitting is economical and easy for the operator to use. On many products, razor slitting is best suited to slower processes (< 1000 ft/min). Problems that occur with higher speeds usually involve blade dulling and contamination buildup on the blade. There are many new types of blade products, but simply changing the type of blade in a machine may not solve a specific slitting problem. This section discusses the problems associated with razor-blade slitting and recommends solutions for some of the problems.
