High strength and high elongation wipe
AssigneeBKI Holding Corporation
InventorsJeffrey Hurley, Brian Boehmer, Alan Campbell, Jerry Moore, Douglas Vercauteren, Barry Burgess, Heather Horton
Life of this patent
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Abstract
The present invention provides high strength nonwoven wipe materials and the process of making the materials. The high strength nonwoven wipe materials contain cellulosic fibers, synthetic fibers, or mixtures thereof, with bicomponent fibers and optionally, a binder. The present invention provides a high strength, high elongation, reduced stiffness nonwoven wipe material with superior tensile strength.
Claims38
A high strength nonwoven wipe material comprising:
- (D) from about 45 to about 95 weight percent matrix fibers selected from the group consisting of cellulosic fibers, synthetic fibers, and a mixture of cellulosic fibers and synthetic fibers;
- (E) from about 5 to about 55 weight percent bicomponent fiber, wherein the bicomponent fiber has a length of from about 3 mm to about 36 mm;
- and
- (F) optionally, from about 0 to about 15 weight percent binder, wherein the weight percentages are based on the total weight of the material, and wherein the material has (D) a basis weight of from about 40 gsm to about 100 gsm;
- (E) a density of from about 0.03 to about 0.15 g/cc;
- and
- (F) a CDW tensile strength of about 147 g/cm or greater.
A high strength multistrata nonwoven wipe material comprising:
- (D) from about 45 to about 95 weight percent matrix fibers selected from the group consisting of cellulosic fibers, synthetic fibers, and a mixture of cellulosic fibers and synthetic fibers;
- (E) from about 5 to about 55 weight percent bicomponent fiber, wherein the bicomponent fiber has a length of from about 3 mm to about 36 mm;
- and
- (F) optionally, from 0 to about 15 weight percent binder,
- wherein weight percentages are based on the total weight of the material, and wherein the material has
- (D) a basis weight of from about 40 gsm to about 100 gsm,
- (E) a density of from about 0.03 to about 0.15 g/cc, and
- (F) a CDW tensile strength of about 252 g/cm or greater, and
- wherein the material has at least one stratum comprising from about 60 weight percent to about 100 weight percent bicomponent fibers.
A process for the production of a wipe material comprising airlaying from about 45 to about 90 weight percent of a matrix fiber which includes cellulosic fibers, synthetic fibers or a mixture of cellulosic fibers and synthetic fibers;
- and from about 5 to about 55 weight percent bicomponent fiber to form material with one or more strata, wherein the material has at lease one internal stratum comprising from about 60 weight percent to about 100 weight percent bicomponent fibers, wherein the bicomponent fibers range in length from about 3 mm to about 36 mm, and wherein the CDW tensile strength of the nonwoven material is from about 90 g/cm to about 2,600 g/cm.
A process for the production of a wipe material comprising airlaying from about 45 to about 95 weight percent matrix fibers which includes cellulosic fibers, synthetic fibers or a mixture of cellulosic fibers and synthetic fibers, from about 5 to about 55 weight percent bicomponent fiber having a length of from about 3 mm to about 36 mm, and optionally, from 0 to about 15 weight percent binder, wherein weight percentages are based on the total weight of the material, and where the material has a basis weight of from about 40 gsm to about 100 gsm, a density of from about 0.03 to about 0.15 g/cc, and a CDW tensile strength of about 147 g/cm or greater.
A process for the production of a wipe material comprising airlaying from about 45 to about 95 weight percent matrix fibers which includes cellulosic fibers, synthetic fibers or a mixture of cellulosic fibers and synthetic fibers, from about 5 to about 55 weight percent bicomponent fiber having a length of from about 3 mm to about 36 mm, and optionally, from 0 to about 15 weight percent binder, wherein weight percentages are based on the total weight of the material, and wherein the material has a basis weight of from about 40 gsm to about 100 gsm, a density of from about 0.03 to about 0.15 g/cc, and a CDW tensile strength of about 252 g/cm or greater, and where the material has a stratum comprising from about 60 weight percent to about 100 weight percent bicomponent fibers.
A high strength nonwoven wipe material comprising:
- (A) from about 0 to about 10 weight percent matrix fibers selected from the group consisting of cellulosic fibers, synthetic fibers, and a mixture of cellulosic fibers and synthetic fibers;
- (B) from about 90 to about 100 weight percent bicomponent fiber, wherein the bicomponent fiber has a partially drawn core;
- and
- (C) optionally, from 0 to about 15 weight percent binder,
- wherein weight percentages are based on the total weight of the material, and wherein the material has
- (D) a basis weight of from about 40 gsm to about 100 gsm,
- (E) a density of from about 0.03 to about 0.15 g/cc,
- (F) a CDW tensile strength of from about 1,200 g/cm or higher, and
- (G) a CDW elongation of from about 50% to about 60%.
A high strength nonwoven material comprising:
- (A) from about 0 to about 40 weight percent of a matrix fiber,
- (B) from about 60 to about 100 weight percent bicomponent fiber, wherein the bicomponent fibers range in length from about 3 mm to about 36 mm and
- (C) optionally, up to about 8 weight percent of an emulsion polymer binder,
- wherein the nonwoven material has
- (D) a basis weight from about 40 gsm to about 100 gsm and
- (E) a density from about 0.03 g/cc to about 0.15 g/cc
- (F) and a CDW tensile strength of from about 1,200 g/cm to about 2,000 g/cm or greater, and
- (G) the CDW elongation of the material ranges from about 50% to about 60%.
A process for the production of a wipe material comprising airlaying from about 0 weight percent to about 40 weight percent of a matrix fiber, and from about 60 weight percent to about 100 weight percent bicomponent fiber to form material with one or more strata, and optionally, up to about 8 weight percent binder, wherein weight percentages are based on the total weight of the material, and wherein the material has a basis weight of from about 40 gsm to about 100 gsm, a density of from about 0.03 to about 0.15 g/cc, and wherein the bicomponent fibers range in length from about 3 mm to about 36 mm, and wherein the CDW tensile strength of the material of about 1,200 g/cm or greater, and wherein the CDW elongation ranges from about 50% to about 60%.
Dependencies are inferred from the claim text.