Yarns spun from olefin and cotton fibers and products made therefrom

a technology of which is applied in the field of yarns spun from olefin and cotton fibers and products made therefrom, can solve the problems of blended yarn not feeling like 100% cotton yarn, long staple length cotton fiber is only available in limited quantities, and is more expensive than the shorter length cotton fibers

Inactive Publication Date: 2006-07-13
NEGOLA EDWARD J
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long staple length cotton fiber is only available in limited quantities and is more expensive than the shorter length cotton fibers.
While the blend of polyester fibers and cotton fibers is generally acceptable, the yarn is not generally used to make Indigo dyed Blue Jeans.
This blended yarn feels too harsh.
While many attempts have be made to make a yarn that would feel just like 100% cotton yarn using the blend of cotton and polyester staple fibers, the blended yarn falls short of feeling like 100% cotton yarn.
Dyeing and finishing: A drawback in dyeing and finishing exists using a yarn made from an intimate blend of cotton fibers and polyester fibers.
Since it is a two-step process and uses two different dye methods, the process is more time consuming and expensive than using a one step cotton dye process.
In addition to being expensive, dyeing uniform shades is difficult and requires great skill.
Unfortunately the finished fabric while acceptable still does not feel like 100% cotton.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] Using the cotton open end spinning system, fiber is blended together using 60% by weight of cotton and 40% by weight of olefin. The roving is collected into containers and fed to an open end spinning system. The roving is spun at high speeds to form a resultant blended yarn. Due to the centrifugal force that occurs during the open end spinning process, the cotton fiber slings to the outside of the yarn while the core of the yarn is mostly olefin. The blended yarn is taken up on three-pound packages or cones. The blended yarn is shipped to the knitter or weaver to be made into greige goods.

example 2

[0034] Using the cotton air jet spinning system, fiber is blended together using 60% by weight of cotton and 40% by weight of olefin. The roving is collected into containers and fed to an air jet spinning system. The roving is spun at high speeds and blended by high-pressure air to form a resultant blended yarn. Air pressure of 100 psi is used to interlace the fibers and to cause vortex spinning. Due to the centrifugal force that occurs during the air jet spinning process, the cotton fiber slings to the outside of the yarn while the core of the yarn is mostly olefin. The blended yarn is taken up on three-pound packages or cones. The blended yarn is shipped to the knitter or weaver to be made into greige goods.

example 3

[0035] Using a cotton ring spinning system, bales of fiber are blended using 60% cotton and 40% olefin. Roving is made and collected into containers. The roving is then combined and put up on roving packages. The roving packages are then fed to a twisting machine where they are twisted together to make a yarn. The blended yarn is taken up on three-pound packages and is shipped to the knitter or weaver to be made into fabric called greige goods. The ring spinning system does not have the same centrifugal force as the open end or the air jet spinning system. While the sheath-core effect is still achieved, more of the predominantly olefin core is visible to the eye when the fabric is dyed. The sheath is still predominately cotton and the fabric can be treated as a cotton fabric when dyed.

[0036] One skilled in the art can vary the blend or the size of yarn but it should be noted that when using the blend of cotton and olefin, the yarn size should not be manufactured below the 40 / 1 size...

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Abstract

A textile yarn consisting of a blend lightweight olefin fibers that has a specific gravity of 0.91 to 1.0 blended with cotton fibers that have a specific gravity of more that 1.0 made using commercially available cotton spinning systems, and the textile articles manufactured using said yarn. This invention takes advantage of the fact that during the spinning process, centrifugal force slings most of the heavier cotton fiber to the outside while the lighter weight olefin remains mostly in the core of the yarn thus formed. The system is especially useful when using cotton open end or air jet spinning systems. Novel fabrics can be made from the new yarns.

Description

RELATED APPLICATIONS [0001] This application is based on and claims priority of provisional application No. 60 / 638,525, filed Dec. 23, 2004.BACKGROUND OF THE INVENTION [0002] Cotton fiber has been the predominant choice of textile fibers through the ages. When used to make yarn, cotton fiber is versatile enough to be used in almost any type of knitted or woven cloth or fabric. It is soft to the touch, and comfortable to wear. Cotton absorbs moisture and is easily washed. Blue Jeans, pants and “T” shirts are the most common articles made using cotton yarn. Cotton yarn is produced in most parts of the world and is consumed as apparel in almost every country in the world. In recent years as shortages of cotton started to occur, cotton fiber has been successfully blended with polyester fibers to make yarn. This yarn is a good substitute for 100% cotton yarn and is used extensively world wide to make textile articles. Cotton fiber and polyester fiber have the same relative specific gravi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D02G3/02
CPCD02G3/36D10B2201/02D10B2321/02
Inventor NEGOLA, EDWARD J.
Owner NEGOLA EDWARD J
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