Invention Grant
US07182838B2 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
- Patent Title: Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength
- Patent Title (中): 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
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Application No.: US10808431Application Date: 2004-03-25
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Publication No.: US07182838B2Publication Date: 2007-02-27
- Inventor: Paul J. Ruthven , Dale T. Gracyalny , Galyn A. Schulz
- Applicant: Paul J. Ruthven , Dale T. Gracyalny , Galyn A. Schulz
- Applicant Address: US GA Atlanta
- Assignee: Georgia Pacific Corporation
- Current Assignee: Georgia Pacific Corporation
- Current Assignee Address: US GA Atlanta
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
- Main IPC: D21F11/00
- IPC: D21F11/00 ; B31F1/07

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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