초록 ▼

A method of forming apertured webs is provided comprising the steps of: (a) forming a foraminous member comprising gross foramina and fine foramina wherein the gross foramina define a patterned design superimposed on the fine foramina by means of applying and curing a photosensitive resin onto a for

A method of forming apertured webs is provided comprising the steps of: (a) forming a foraminous member comprising gross foramina and fine foramina wherein the gross foramina define a patterned design superimposed on the fine foramina by means of applying and curing a photosensitive resin onto a foraminous element comprising fine foramina in order to form elevated portions on the fine foramina defining the gross foramina, (b) providing a layer of fibers on said foraminous member; and (c) applying fluid streams to said layer of fibers such that the fibers are randomly entangled in regions interconnected by fibers extending between adjacent entangled regions in a pattern determined by the pattern of the gross foramina of the foraminous member to form an apertured web.

대표청구항 ▼

[ What is claimed is:] [1.] A method of forming an apertured web comprising the steps of:(a) forming a foraminous member comprising gross foramina and fine foramina wherein the gross foramina define a patterned design superimposed on said fine foramina by means of applying a photosensitive resin ont

[ What is claimed is:] [1.] A method of forming an apertured web comprising the steps of:(a) forming a foraminous member comprising gross foramina and fine foramina wherein the gross foramina define a patterned design superimposed on said fine foramina by means of applying a photosensitive resin onto a foraminous element comprising fine foramina, curing said photosensitive resin by photoactivation in a pattern selected such that said cured resin forms elevated portions on said fine foramina defining said gross foramina, and removing all uncured photosensitive resin from said foraminous member;(b) providing a layer of fibers on said foraminous member; and(c) applying fluid streams to said layer of fibers such that the fibers are randomly entangled in regions interconnected by fibers extending between adjacent entangled regions in a pattern determined by the pattern of the gross foramina of the foraminous member to form an apertured web;wherein said elevated portions are discrete are characterized by a periphery steeply sloped and oblique relative to a surface of the foraminous element and by a distinct upper edge.