Process for Activating A Web
AssigneeThe Procter & Gamble Company
InventorsKhalid Qureshi, Fred Naval Desai
Life of this patent
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Abstract
A process for simultaneously activating two or more portions of a web in different directions. The process involves feeding a web into an apparatus that includes a pair of intermeshing activation rolls having three dimensional surface features configured to simultaneously activate different portions a web in different directions. The three dimensional surface features are arranged in discrete regions on the rolls such that at least two of the regions provide different directions of activation. The rolls include one or more buffer regions positioned between the discrete regions on the roll that provide different directions of activation.
Claims20
A method for simultaneously activating a stretchable material in multiple directions, the method comprising:
- feeding the stretchable material into a nip formed between a first rotatable roll and a second rotatable roll, wherein the first and second rolls comprise
- a first region comprising a least one three-dimensional surface feature, the three-dimensional surface feature(s) of the first region of the first roll and the three-dimensional surface feature(s) of the first region of the second roll being complementary to one another and positioned relative to one another such that when the first roll and the second roll are rotated the three-dimensional surface features of the first regions of the first and second rolls intermesh, the intermeshing surface features being operatively configured to activate the stretchable material in a first direction;
- a second region comprising at least one three-dimensional surface feature, the three-dimensional surface feature(s) of the second region of the first roll and the three-dimensional surface feature(s) of the second region of the second roll being complementary to one another and positioned relative to one another such that when the first roll and the second roll are rotated the three-dimensional surface features of the second regions of the first and second rolls intermesh, the intermeshing surface features of the second regions of the first and second rolls being operatively configured to activate the stretchable material in a second direction which is different from the first direction;
- a buffer region disposed between the portions of the first and second regions that include three-dimensional surface features;
- and
- wherein each of the first and second surface features include tips and at least some of the tips have an aspect ratio of greater than 10.
Dependencies are inferred from the claim text.