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Title:
VERTICALLY LAPPED NONWOVEN IN FOOTWEAR
Document Type and Number:
WIPO Patent Application WO/2021/183476
Kind Code:
A4
Abstract:
Footwear with vertically lapped nonwoven layers in upper and sole structures for enhanced breathability and moisture wicking is disclosed. Exemplary vertically lapped nonwoven dual layers comprise one or more hydrophobic layers and one or more hydrophilic layers that are adhered to each other by a plurality of methods and are further integrated into the inside of the upper and sole of the footwear so that the hydrophilic layer is in direct contact with the feet. The hydrophilic part of the dual layer wicks sweat or bodily fluid from the wearer into the nonwoven and transports the moisture to the hydrophobic layer for fast evaporation, thus keeping the feet dry. The nonwoven footwear is environmentally friendly as the nonwoven layers can be made of recycled materials and may be fully recyclable.

Inventors:
HOLLIS ANDY (US)
DEFRANKS MICHAEL (US)
MCCANN ERIC (US)
PIANA ANDREA (US)
Application Number:
PCT/US2021/021454
Publication Date:
November 11, 2021
Filing Date:
March 09, 2021
Export Citation:
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Assignee:
PIANA NONWOVENS LLC (US)
International Classes:
B29D35/14; A43B1/00; A43B3/00; A43B5/08; A43B23/02; B29D35/10; D04B21/16
Attorney, Agent or Firm:
WHITHAN, Michael, E. et al. (US)
Download PDF:
Claims:
AMENDED CLAIMS received by the International Bureau on 24 September 2021 (24.09.2021)

What is claimed is:

1. Footwear, comprising: a sole; and an upper, wherein the sole of the footwear is connected to at least one side of the upper, wherein at least a portion of the upper ranging from 10-100% of the upper and/or at least a portion of the sole ranging from 10-100% of the sole comprises multiple layers of vertically lapped nonwoven material comprising at least an inner layer which is at least partially hydrophilic and at least an outer layer which is at least partially hydrophobic wherein the at least an inner layer is relatively closer to a subject’s foot than the at least an outer layer when the footwear is worn on the subject’s foot.

2. The footwear of claim 1 , wherein the at least an outer layer comprises polyester, acrylic, modacrylic, polypropylene, nylon or combinations thereof.

3. The footwear of claim 1, wherein the at least an inner layer comprises cellulosic fibers, rayon, lyocell, cotton, wool, linen, modal or combinations thereof.

4. The footwear of claim 1, wherein the height of the plurality of layers together is 0.04 to 0.1 inches.

5. The footwear of claim 1, wherein the sole comprises the multiple layers of vertically lapped nonwoven material.

6. The footwear of claim 1, wherein the footwear is made of 80-100% recycled materials.

7. The footwear of claim 1, wherein the footwear is 80-100% recyclable.

8. The footwear of claim 1, wherein at least some of the multiple layers are processed via digital printing to apply at least one treatment selected from cooling, anti-allergen, probiotic, deodorizer, antimicrobial, scent or combinations thereof.

9. The footwear of claim 1, wherein the sole comprises an insole and a midsole, wherein the insole is configured to contact a wearer’s foot.

10. The footwear of claim 15, wherein the insole is coated or exhausted completely or predominantly with hydrophilic materials.

11. The footwear of claim 15, wherein the insole is completely or predominantly comprised of hydrophilic materials.

12. The footwear of claim 15, wherein the insole comprises cellulosic fibers, rayon, lyocell, cotton, wool, linen, modal or combinations thereof.

13. The footwear of claim 15, wherein the midsole is coated or exhausted completely or predominantly with hydrophobic materials.

14. The footwear of claim 15, wherein the midsole is completely or predominantly comprised of hydrophobic materials.

15. The footwear of claim 15, wherein the midsole comprises polyester, acrylic, modacrylic, polypropylene, nylon or combinations thereof.

16. The footwear of claim 1, wherein the upper comprises the multiple layers of vertically lapped nonwoven material.

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