Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength
作者： Galyn A. Schulz , Paul J. Ruthven , Dale T. Gracyalny , Otto Mogged , Robert R. Daus
DOI:
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摘要: An embossing system for and perforating at least a portion of web is provided comprising first roll having elements second elements, wherein the rolls define perforate nips predominate number are substantially oriented in cross-machine direction. Moreover, all defined by can be Further, an angle about 85° to 95° from machine
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