초록 ▼

Webs can be embossed and laminated using irregular bonding patterns with the pin-on-pin embossing process. Different patterns are provided onto each web and the webs are joined in a bonding nip to form a laminate. The bonding pattern formed in the bonding nip is irregular. The irregularity of the bo

Webs can be embossed and laminated using irregular bonding patterns with the pin-on-pin embossing process. Different patterns are provided onto each web and the webs are joined in a bonding nip to form a laminate. The bonding pattern formed in the bonding nip is irregular. The irregularity of the bonding pattern reduces vibrations within the machinery and allows increased machine speed. The irregularity of the pattern can be determined using the Self-Similarity Count or the Energy Suppression Factor method.

대표청구항 ▼

[ We claim:] [1.]1. A method for embossing and laminating cellulosic webs with reduced vibration and increased speed, the method comprising the steps of:passing a first web along a first embossing roll to provide protrusions forming a first pattern on the first web;passing a second web along a secon

[ We claim:] [1.]1. A method for embossing and laminating cellulosic webs with reduced vibration and increased speed, the method comprising the steps of:passing a first web along a first embossing roll to provide protrusions forming a first pattern on the first web;passing a second web along a second embossing roll to provide protrusions forming a second pattern on the second web wherein the first and second patterns are dissimilar in distribution on the web; andjoining the first web and the second web to form a laminate such that the protrusions of the first web attach to the protrusions of the second web at a laminate interface to form a bonding pattern, wherein the area of attachment between the first protrusions and second protrusions is the bonding area, wherein the bonding area is between about 1% to 60% of the total area of the laminate and wherein the bonding pattern has a Self-Similarity Count of 1.