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Textiles with High Water Release Rates and Methods for Making Same

a technology of high water release rate and textiles, applied in the field of textiles, can solve the problems of relatively slow drying time of garments that wick quickly, and low water release rate, and achieve the effects of improving the water release rate of fibers, yarns, fabrics,

Inactive Publication Date: 2008-02-21
OPTIMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] The present invention provides a textile material having a surface and a discontinuous treatment located on the surface. The discontinuous treatment includes discrete, individual particles that are more hydrophobic than the surface. The discontinuous treatment is in the range of about 0.1% to about 8% by weight of the textile material and increases the water release rate near dryness of said textile material.
[0010] Also provided are fabrics having a hydrophilic surface and a discontinuous treatment that is more hydrophobic than the hydrophilic surface. The discontinuous treatment includes discrete, individual particles located on the hydrophilic surface. The discontinuous treatment is in the range of about 0.1% to about 8% by weight of the fabric and increases the water release rate near dryness of the fabric.
[0011] The present invention also provides textile materials having a surface with a discontinuous treatment located on the surface, wherein the discontinuous treatment includes discrete, individual particles of one or more of polyvinyl acetate and a polyvinyl acetate / acrylic copolymer. The discontinuous treatment is present in an amount sufficient to increase the water release rate near dryness of the textile materials.

Problems solved by technology

For example, a garment that wicks quickly may, nonetheless, have a relatively slow drying time and low water release rate.
Accordingly, U.S. Pat. No. 5,590,420 does not disclose, teach, or suggest a cost-effective method for improving the water release rates of fibers, yarns, fabrics, or garments

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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  • Textiles with High Water Release Rates and Methods for Making Same
  • Textiles with High Water Release Rates and Methods for Making Same
  • Textiles with High Water Release Rates and Methods for Making Same

Examples

Experimental program
Comparison scheme
Effect test

example 1

Treated T-Shirt Liquid Contents

[0091] A 5% by weight water dispersion of PTFE was made by dilution with water from 60% solids Type 30B PTFE (Teflon®) dispersion, available from E.I. Dupont Company. Dri-release® t-shirts made from 85% Wellman Fortrel® co-polyester and 15% cotton fiber blend were then dipped either in the 5% by weight dispersion of PTFE or in water. After dipping the shirts, the shirts were manually wrung to remove as much liquid as possible. The Dri-release® t-shirt dipped in water had a 108.6% water content after hand wringing. The Dri-release® t-shirt dipped in the 5% by weight dispersion of PTFE had a 82% liquid content after hand wringing. Upon overnight drying in air, the Dri-release® t-shirt dipped in water returned to its original dry weight. The Dri-release® t-shirt dipped in the 5% by weight dispersion of PTFE dried to 104.15% of its original weight due to the additional weight of PTFE.

example 2

Treated T-Shirt Drying Times

[0092] In addition to the two samples from Example 1, t-shirts made from 100% CoolMax® polyester, an 88% co-polyester with 12% wool blend, an unbranded 100% polyester, an Akwatek®-treated hydrophilic Comfortrel® co-polyester, and a 100% cotton were treated similarly to the t-shirts in Example 1. The CoolMax® t-shirt picked up 3.74% PTFE, the 88% co-polyester with 12% wool blend t-shirt picked-up 3.28%, the unbranded 100% polyester t-shirt picked up 4% PTFE, the Akwatek®-treated hydrophilic Comfortrel® co-polyester t-shirt picked up 3.75% PTFE, and the 100% cotton t-shirt picked up 2.77% PTFE. All of the t-shirts were washed and spun dried in a Sears Kenmore 70 Series Heavy Duty Plus residential washing machine before and after treatment using 70 ml of Tide® detergent in a cotton / sturdy, warm / cold, medium load cycle. The t-shirts were weighed immediately after spin-dry to determine the water content of the t-shirts. The t-shirts were kept in a controlled ...

example 3

PTFE Transfer from Treated to Untreated T-Shirts

[0102] The 100% cotton t-shirts of Example 2 were washed with a red polyester shirt that had been treated previously with PTFE. FIG. 6 compares the drying rates of the treated and untreated t-shirts made from 100% cotton. Some of the red color transferred from the treated shirt to the untreated control. As shown in FIG. 6, the untreated t-shirt started with a water content that was 12% below the water content of the 2.8% PTFE treated t-shirt and both t-shirts dried at about the same rate. The comparable drying rates indicate that some of the PTFE treatment also transferred along with the dye from the treated shirt to the untreated control. The amount of PTFE treatment transferred was not measurable. Surprisingly, the low level of PTFE in the “untreated” control provided comparable results to the 2.8% PTFE treated samples.

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Abstract

Textiles treated with hydrophobic dispersions that exhibit superior drying rates and lower spin-dry water contents are disclosed. Polytetrafluoroethylene, polyvinyl acetate, and polyvinyl acetate / acrylic copolymer dispersions are used to treat textiles, including yarns, fabrics, linens, and articles of clothing. The use of dispersions create textiles with a discontinuous treatment of discrete individual hydrophobic particles applied to the surface. The treated textiles exhibit superior drying properties at very low levels of treatment. Also provided are methods for treating textiles with hydrophobic dispersions. The incremental cost to the textile of the treatment is minimized by low levels of treatment and flexibility in application.

Description

FIELD OF THE INVENTION [0001] The present invention relates to textiles that are treated to enhance performance. More particularly, the present invention relates to textiles that are treated to increase water release rates and reduce drying times. Even more particularly, the present invention relates to yarns, fabrics, and articles of clothing that are treated with low levels of dispersions which are more hydrophobic than the textile to which they are applied to reduce drying times, reduce spin-dry water contents, increase water release rates, and improve comfort while offering flexibility and minimal added costs to the manufacturing process. BACKGROUND OF THE INVENTION [0002] During both normal everyday activities and athletic activities, a person desires clothing that is comfortable to wear. A key factor in providing comfort is a garment's ability to absorb and release perspiration away from the wearer nearly as fast as it is generated by the wearer. Accordingly, increasing the wa...

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): D06M13/00D06M15/256D06M15/263D06M15/333D06N7/00
CPCD06M15/256D06M15/263D06M15/333D06M2200/12D06N2203/041D06N2209/142D06N2205/02D06N7/0092D06N2203/045D06N2201/02D06N2201/06D06N2201/042D06N2203/044D06N2211/10Y10T442/2934Y10T442/2943Y10T442/2279Y10T442/2402Y10T442/2164
Inventor MOORE, JOHN W.MOORE, CHRISTOPHER S.
Owner OPTIMER
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