Ring spun yarn and method

Patent metadata

Field	Value
Publication number	US-11767618-B2
Application number	US-202217838625-A
Country	US
Kind code	B2
Filing date	Jun 13, 2022
Priority date	Dec 21, 2018
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A method of ring spinning cotton polyester blended yarn. The method is robust and can be used to manufacture the yarn even from polyester fibers that are produced from recycled materials. A new ring spun cotton polyester yarn is also provided. The yarn has few defects and can be effectively dyed when woven into cloth.

First claim

What is claimed is:

1. A ring spun cotton polyester yarn comprising:
a blend of fibers, wherein the blend includes:
cotton fibers from at least two bales; and
polyester fibers where at least ninety percent of the polyester fibers have a length between 30 millimeters and 33 millimeters, and a linear density of 1.1-1.3 denier,

wherein the blended fibers are twisted together to form the yarn wherein the twist per inch is indicative of yarn manufactured from a ring spinning process, and wherein the yarn is capable of being woven into cloth that is free of undyed specs.

2. The yarn of claim 1 , wherein the twist per inch is characterized by a twist multiplier of between 3.7-3.9 for knitting yarns and 3.9 to 4.4 for weaving yarns.

3. The yarn of claim 1 , wherein the blend includes at least 55 percent by weight cotton and at least 25 percent by weight polyester.

4. The yarn of claim 1 , wherein the blend includes at least 55 percent by weight cotton and at least 35 percent by weight polyester.

5. The yarn of claim 1 , wherein at least 90 percent of the cotton fibers have a length between 12 millimeters and 44 millimeters.

6. The yarn of claim 1 , wherein the polyester is a recycled polyester.

7. A woven or knit fabric comprising the yarn of claim 1 , wherein the cotton in the fabric is dyed.

Assignees

• Target Brands Inc

Inventors

• Bhatnagar Avinash

Classifications

• D02G3/04 Primary

  Blended or other yarns or threads containing components made from different materials · CPC title

• D01H1/02

  ring type {(arrangements with two or more spinning or twisting devices in combination D01H7/90)} · CPC title

• D01H7/52

  Ring-and-traveller arrangements · CPC title

• D10B2201/02

  Cotton · CPC title

• D10B2331/04

  polyesters, e.g. polyethylene terephthalate [PET] · CPC title