Disposable nonwoven undergarments
The present invention relates to a soft feeling, aesthetically pleasing, and form-fitting disposable nonwoven undergarment for men, women, and youths, and optionally comprises a protective panel for those individuals with mild incontinence conditions. It is the object of the present invention to provide a comfortable, durable disposable undergarment by forming the undergarment of a three-dimensionally imaged nonwoven fabric. The present invention discloses an assortment of durable, disposable undergarments capable of meeting the needs of the general public, and specifically, to subsets of the population such as travelers, athletes, medical personnel and patients, for which routine care of conventional undergarments is inconvenient or unavailable.
1. A process for fabricating a disposable nonwoven undergarment comprising:
a. providing a precursor nonwoven web comprising a hydrophobic side and a hydrophillic side;
b. providing a foraminous surface;
c. hydroentangling said precursor web on said foraminous surface to form a patterned and imaged nonwoven fabric comprising imparting only three-dimensional, aperture-free images into the precursor web;
d. optionally dyeing said patterned and imaged nonwoven fabric;
e. forming said patterned and imaged nonwoven fabric into a front panel, a back panel, and crotch region; and
f. joining said front panel, back panel, and crotch region at seams to form a disposable undergarment.
2. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said precursor web is a fibrous blend of synthetic and natural fibers.
3. A process for fabricating a disposable nonwoven undergarment as in claim 2 , wherein said synthetic fibers are selected from the group consisting of: polyacrylates, polyamides, polyesters, polypropylene, polyethylene, and mixtures thereof, and derivatives thereof.
4. A process for fabricating a disposable nonwoven undergarment as in claim 3 , wherein said synthetic fibers are polyester.
5. A process for fabricating a disposable nonwoven undergarment as in claim 2 , wherein said natural fibers are selected from the group consisting of: cotton, wood pulp, rayon, and mixtures thereof.
6. A process for fabricating a disposable nonwoven undergarment as in claim 5 , wherein said natural fibers are rayon.
7. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said foraminous surface is a three-dimensional image transfer device.
8. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said disposable nonwoven undergarment is imparted with a pattern or three-dimensional image, by means of a three-dimensional image transfer device.
9. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said formed disposable nonwoven undergarment is comprised of one patterned or imaged nonwoven fabric piece.
10. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said step of joining comprises a method selected from the group consisting of thermal welding, mechanical stitching, adhesive bonding, and mixtures thereof.
11. A process for fabricating a disposable nonwoven undergarment as in claim 10 , wherein said step of joining comprises mechanical stitching.
12. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said undergarment is for daily use.
13. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said process further comprises providing a moisture absorbent panel in the crotch region to accommodate mild incontinence.
14. A process for fabricating a disposable nonwoven undergarment as in claim 1 , wherein said process comprises providing elastically lined leg openings and waist opening.
15. A process for fabricating a disposable nonwoven undergarment in accordance with claim 1 , wherein said front panel and said back panel are formed unitarily with said crotch region.
16. A process for fabricating a disposable nonwoven undergarment in accordance with claim 1 , wherein said front panel and said back panel are formed separately and are joined to each other at said side seams, and at a bottom seam at said crotch region.
17. A process for fabricating a disposable nonwoven garment as in claim 1 , wherein the precursor nonwoven web is 50% rayon and 50% polyester.
18. A process for fabricating a disposable nonwoven garment as in claim 17 , wherein the hydrophobic side comprises polyester and the hydrophillic side comprises rayon.
19. A process for fabricating a disposable nonwoven garment as in claim 18 , wherein the hydrophobic side faces away from the skin of an undergarment wearer, and the hydrophillic side is closest to the skin of the wearer.
20. A process for fabricating a disposable nonwoven garment as in claim 1 , wherein the fibers are carded and air randomized to form the precursor web.
21. A process for fabricating a disposable nonwoven garment as in claim 1 , wherein said undergarment does not require a fastener.