Invention Grant
US07857941B2 Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength 有权
在机器方向上降解纸幅的装置和方法,同时保持横向机器方向的强度

Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength
Abstract:
An embossing system for embossing and perforating at least a portion of a web is provided comprising a first embossing roll having embossing elements and at least a second embossing roll having embossing elements, wherein the elements of the first and second embossing rolls define perforate nips for embossing and perforating the web and wherein at least a predominate number of the perforate nips are substantially oriented in the cross-machine direction. Moreover, substantially all of the nips defined by the embossing elements of the first and second embossing rolls can be substantially oriented in the cross-machine direction. Further, the cross-machine embossing elements are at an angle of about 85° to 95° from the machine direction.
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