Method for producing a spun-bonded nonwoven web with improved abrasion resistance
AssigneeMilliken & Company
InventorDave E. Wenstrup
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method for improving the abrasion resistance of a spun-bonded nonwoven without substantially adversely affecting its hand or drape characteristics, by incorporating low melt binder fibers into the web during the laydown phase of the spun-bonded nonwoven production process. More specifically, improved abrasion resistance is achieved by intimately blending continuous binder fibers with the primary extruded fibers in a spun-bonded nonwoven web. Also encompassed within this invention is a spun-bonded nonwoven fabric having improved abrasion resistance and comprised of primary extruded fiber and low melt binder fiber such that the binder fiber comprises between about 1 and about 50 weight percent on weight of the spun-bonded nonwoven fabric.
Claims29
A method for providing a spun-bonded nonwoven web having improved abrasion resistance and comprised of primary extruded fiber and low melt binder fiber, wherein the low melt binder fiber comprises between about 1 and about 50 weight percent on weight of the spun-bonded nonwoven web, the method comprising the steps of:
- (a) providing primary extruded fiber at the laydown step of the spun-bonded nonwoven production process;
- (b) introducing low melt binder fiber to the primary extruded fiber of step “a” during the laydown step of the spun-bonded nonwoven production process;
- (c) intimately blending the low melt binder fiber with the primary extruded fiber to provide a spun-bonded nonwoven web;
- (d) activating the binder fibers contained within the spun-bonded nonwoven web;
- and
- (e) optionally, dyeing, printing, sanding, embossing, or further treating the spun-bonded nonwoven web with a textile finishing process by techniques known to those skilled in the art.
A method for providing a spun-bonded nonwoven web having improved abrasion resistance and comprised of primary extruded fiber and low melt binder fiber, wherein the low melt binder fiber comprises between about 2 and about 30 weight percent on weight of the spun-bonded nonwoven web, the method comprising the steps of:
- (a) providing primary extruded fiber at the laydown step of the spun-bonded nonwoven production process;
- (b) introducing low melt binder fiber to the primary extruded fiber of step “a” during the laydown step of the spun-bonded nonwoven production process;
- (c) intimately blending the low melt binder fiber with the primary extruded fiber to provide a spun-bonded nonwoven web;
- (d) activating the binder fibers contained within the spun-bonded nonwoven web;
- and
- (e) optionally, dyeing, printing, sanding, embossing, or further treating the spun-bonded nonwoven web with a textile finishing process by techniques known to those skilled in the art.
A method for providing a spun-bonded nonwoven web having improved abrasion resistance and comprised of primary extruded fiber and low melt binder fiber, wherein the low melt binder fiber comprises between about 3 and about 15 weight percent on weight of the spun-bonded nonwoven web, the method comprising the steps of:
- (a) providing primary extruded fiber at the laydown step of the spun-bonded nonwoven production process;
- (b) introducing low melt binder fiber to the primary extruded fiber of step “a” during the laydown step of the spun-bonded nonwoven production process;
- (c) intimately blending the low melt binder fiber with the primary extruded fiber to provide a spun-bonded nonwoven web;
- (d) activating the binder fibers contained within the spun-bonded nonwoven web;
- and
- (e) optionally, dyeing, printing, sanding, embossing, or further treating the spun-bonded nonwoven web with a textile finishing process by techniques known to those skilled in the art.
A method for providing a spun-bonded nonwoven web having improved aesthetic and/or performance characteristics and comprised of primary extruded fiber and secondary fiber or yarn, wherein the secondary fiber or yarn imparts improved aesthetic and/or performance characteristics to the spun-bonded nonwoven web, the method comprising the steps of:
- (a) providing primary extruded fiber at the laydown step of the spun-bonded nonwoven production process;
- (b) introducing the secondary fiber or yarn to the primary extruded fiber of step “a” during the laydown step of the spun-bonded nonwoven production process;
- (c) intimately blending the secondary fiber or yarn with the primary extruded fiber to provide a spun-bonded nonwoven web;
- (d) optionally, activating any binder fibers contained within the spun-bonded nonwoven web;
- and
- (e) optionally, dyeing, printing, sanding, embossing, or further treating the spun-bonded nonwoven web with a textile finishing process by techniques known to those skilled in the art.
Dependencies are inferred from the claim text.