Claims
- 1. A bonded, fibrous nonwoven textile fabric having excellent strength and textile-like softness, drape and hand comprising: a fibrous web of overlapping, intersecting fibers, said fibrous web comprising bonded areas and unbonded areas having boundaries therebetween, said bonded areas being spaced from said unbonded areas in a predetermined, intermittent pattern; the fibers in said bonded areas being bonded with from about 50% to about 120% by weight, based on the weight of the fibers therein, of a synthetic resin; said boundaries being sharp and distinct and being substantially free of binder feathering and wherein
- (a) the optical density at one side of said bonded areas increases from approximately 0 to a value of at least 0.6 in moving a distance of less than about 1 mm. from an unbonded area directly into a bonded area;
- (b) the optical density of said bonded areas is at least 0.6; and
- (c) the optical density at the other side of said bonded areas decreases to substantially zero in moving a distance of less than about 1 mm. from said bonded area directly into the next unbonded area.
- 2. A bonded, fibrous nonwoven textile fabric as defined in claim 1, wherein said synthetic resin has a hydroxy-containing coordinating ligand.
- 3. A bonded, fibrous nonwoven textile fabric as defined in claim 2, wherein the hydroxy-containing coordinating ligand is the carboxy radical.
- 4. A bonded, fibrous nonwoven textile fabric as defined in claim 2, wherein said synthetic resin is a carboxylated resin.
- 5. A bonded, fibrous nonwoven textile fabric as defined in claim 4, wherein said carboxylated resin is a polymerization product of from about 1% to about 8% by weight of a .alpha.,.beta.-unsaturated carboxylic acid and from about 99% to about 92% by weight of a monomer or mixture of monomers copolymerizable therewith.
- 6. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated carboxylic acid contains from 3 to 5 carbon atoms.
- 7. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated carboxylic acid is acrylic acid.
- 8. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated carboxylic acid is methacrylic acid.
- 9. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated carboxylic acid is itaconic acid.
- 10. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated carboxylic acid is copolymerized with butadiene and styrene.
- 11. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated carboxylic acid is acrylic acid and the monomer with which it is copolymerized is an acrylic monomer.
- 12. A bonded, fibrous nonwoven textile fabric as defined in claim 5, wherein the .alpha.,.beta.-unsaturated caboxylic acid is copolymerized with ethylene and vinyl acetate.
- 13. A bonded, fibrous nonwoven textile fabric having excellent strength and textile-like softness, drape and hand comprising: a fibrous web of overlapping, intersecting fibers, said fibrous web comprising bonded areas and unbonded areas having boundaries therebetween, said bonded areas being spaced from said unbonded areas in a predetermined, intermittent pattern; the fibers in said bonded areas being bonded with from about 50% to about 120% by weight, based on the weight of the fibers therein, of a synthetic resin; said boundaries being sharp and distinct and being substantially free of binder feathering; said nonwoven fabric being characterized by an optical density--distance curve which graphically displays optical density as a function of distance in millimeters traversed in moving sequentially:
- (a) from a first of said unbonded areas directly into one of said bonded areas;
- (b) across said one of said bonded areas; and
- (c) from said one of said bonded areas directly into a next adjacent unbonded area;
- said optical density--distance curve across said bonded area being generally bell-shaped and having two slopes, each of said slopes being at least 75.degree..
Parent Case Info
This is a continuation-in-part of patent application Ser. No. 521,430, filed Nov. 6, 1974, now abandoned, which is a continuation of patent application Ser. No. 297,164, filed Oct. 12, 1972, now abandoned, which is a division of patent application Ser. No. 65,880 filed Aug. 21, 1970 which is a continuation-in-part of my earlier-filed, co-pending patent application Ser. No. 800,265, filed Feb. 18, 1969 now U.S. Pat. No. 3,649,330 which is a continuation-in-part of my earlier-filed patent application Ser. No. 618,317, filed Feb. 24, 1967, now abandoned. It is also a continuation-in-part of my earlier-filed, co-pending patent application Ser. No. 623,797, filed Mar. 10, 1967 now U.S. Pat. No. 3,536,518 and my earlier-filed, co-pending patent application Ser. No. 2,955, filed Jan. 14, 1970 now abandoned. And, it is also a continuation-in-part of my earlier-filed, co-pending patent application Ser. No. 817,177, filed Apr. 17, 1969 which is a continuation-in-part of my earlier-filed patent application Ser. No. 639,011, filed May 17, 1967, now abandoned.
US Referenced Citations (4)
Related Publications (1)
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Number |
Date |
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2955 |
Jan 1970 |
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Divisions (1)
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Number |
Date |
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Parent |
65880 |
Aug 1970 |
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Continuations (1)
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Number |
Date |
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Parent |
297164 |
Oct 1972 |
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Continuation in Parts (4)
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Number |
Date |
Country |
Parent |
521430 |
Nov 1974 |
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Parent |
800265 |
Feb 1969 |
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Parent |
618317 |
Feb 1967 |
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Parent |
639011 |
May 1967 |
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