Wicking fabric and garment made therefrom

• US 8,127,575 B2
• Filed: 09/22/2006
• Issued: 03/06/2012
• Est. Priority Date: 09/23/2005
• Status: Active Grant

• Current Assignee: Lenzing AG (B & C Privatstiftung)
• Original Assignee: Lenzing AG (B & C Privatstiftung)
• Inventors: Burrow, Thomas Richard, Firgo, Heinrich
• Primary Examiner(s): Worrell, Danny
• Application Number:
  US12/067,470
• Publication Number:
  US 20090133446A1
• Time in Patent Office: 1,992 Days
• Field of Search: 662/02, 661/69.R, 661/70, 661/78.R, 661/96
• US Class Current: 66/176
• CPC Class Codes: A41B 2400/60 Moisture handling or wicking function
• CPC Class Codes: A41D 31/12 Hygroscopic; Water retaining
• CPC Class Codes: A41D 31/125 Moisture handling or wicking function through layered materials
• CPC Class Codes: A61F 13/537 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer A61F13/538 takes precedence

Abstract

A moisture wicking fabric has one side comprised substantially entirely of inherently hydrophobic fibers such as polyester or polypropylene and the other side comprised of a mixture of hydrophobic fibers such as polyester or polypropylene and hydrophilic fibers, particularly cellulosic fibers such as cotton, lyocell and viscose rayon. A garment can be formed from such a moisture wicking fabric, for example by the whole garment knitting method, the side comprised of the mixture of fibers being the external side of the garment.

Claims

1. A moisture wicking fabric for a garment comprising two layers, the fabric having one layer consisting essentially of inherently hydrophobic fibres and the other layer comprised of a mixture of hydrophobic fibres and hydrophilic fibres, wherein said other layer forms an external side of the garment, wherein one side of the fabric is formed by a process selected from knitting and weaving and the other side of the fabric is formed by a process selected from knitting and weaving, wherein said hydrophobic fibres of said one layer and said other layer being weakly hygroscopic having water retention of less than 25% or non-hygroscopic, and wherein said hydrophilic fibres of said other layer form 10 to 50% by weight of said mixture.

2. A moisture wicking fabric as claimed in claim 1 in which the one layer of fabric is more hydrophobic than the other layer of fabric.

3. A moisture wicking fabric as claimed in claim 1 in which both sides are formed by the same process.

4. A moisture wicking fabric as claimed in claim 1 in which the one layer is formed by a different process to the other layer.

5. A moisture wicking fabric as claimed in claim 1 in which both of the layers are joined together at the same time as they are created.

6. A moisture wicking fabric as claimed in claim 1 in which each of the layers is formed separately and then conjoined to form the fabric.

7. A moisture wicking fabric as claimed in claim 1 having one layer consisting essentially of fibres of an inherently hydrophobic synthetic or plastics material and the other layer comprised of a mixture of fibres of an inherently hydrophobic synthetic or plastics material and hydrophilic fibres.

8. A moisture wicking fabric as claimed in claim 1 in which the hydrophilic fibres are cellulosic fibres.

9. A moisture wicking fabric as claimed in claim 8 in which the cellulosic fibres are selected from cotton, lyocell and viscose rayon.

10. A moisture wicking fabric as claimed in claim 1 in which the inherently hydrophobic material is selected from polyester and polypropylene.

11. A moisture wicking fabric as claimed in claim 1 in which the fibres of the inherently hydrophobic material of the one layer are formed of a different material from the fibres of the inherently hydrophobic material of the other layer.

12. A moisture wicking fabric as claimed in claim 1 in which the fibres of the inherently hydrophobic material of the one layer are formed of the same material as the fibres of the inherently hydrophobic material of the other layer.

13. A moisture wicking fabric as claimed in claim 8, in which the layer formed of the mixture of fibres contains not more than 50% cellulosic fibres and not less than 50% of fibres of an inherently hydrophobic plastics material.

14. A moisture wicking fabric as claimed in claim 13 in which the layer formed of the mixture of fibres contains 10 to 50% of cellulosic fibres.

15. A moisture wicking fabric as claimed in claim 13 in which the cellulosic fibres are lyocell fibres.

16. A garment formed of a moisture wicking fabric as claimed in claim 1 which is a knitted garment and which has been knitted by the whole garment knitting method.

17. A garment as claimed in claim 16 which is in the form of a shirt or blouse.

18. A moisture wicking fabric for a garment, consisting of:

a first layer consisting essentially of inherently hydrophobic polyester fibres being weakly hygroscopic having water retention of less than 25%, and

a second layer including a mixture of hydrophobic polyester fibres and hydrophilic lyocell fibres, said hydrophilic lyocell fibres forming 20 to 40% by weight of said mixture and being strongly hygroscopic;

said first and second layers being in intimate contact; and

one side of the fabric being formed by a process selected from knitting and weaving and an opposite side of the fabric being formed by a process selected from knitting and weaving.

19. A garment, consisting of:

a comfortable sportswear shirt made of a flexible technical fabric consisting of a two layer structure;

an inner layer of said two layer structure consisting of fibres of an inherently hydrophobic synthetic or plastics material being weakly hygroscopic having water retention of less than 25%, said inner layer forming an inner side of the garment which, when worn, contacts a wearer'"'"'s skin;

an outer layer of said two layer structure being a mixture of fibres of an inherently hydrophobic synthetic or plastics material and hydrophilic fibres, said hydrophobic fibers being weakly hygroscopic having water retention of less than 25% or being non-hygroscopic and said hydrophilic fibres being strongly hygroscopic, forming 20 to 40% by weight of said mixture and being lyocell, said mixture promoting moisture to spread sideways through said outer layer across an outer surface of the outside of the garment thereby maximizing a cooling effect due to evaporation; and

said inner and outer layers being in intimate contact.