Processes to make water and oil repellent bcf yarn

A yarn and anti-fouling technology, applied in the field of blankets and BCF yarns with improved anti-fouling properties

Inactive Publication Date: 2013-11-27
INVISTA TECHNOLOG IES S A R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spray-on fluorochemical products are designed to use less water and energy than exhaust applications, but they do not provide as good stain repellency properties as those provided by exhaust applications due to the limited depth of penetration into fabrics, especially plush fabrics and those incorporating tightly twisted yarns are now becoming more popular

Method used

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  • Processes to make water and oil repellent bcf yarn
  • Processes to make water and oil repellent bcf yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1 (comparison)

[0056] use figure 1 Two strands of 922 denier beige solution-dyed nylon 66 BCF made of cationic dyeable polymer were cable twisted at 7000 rpm on a Volkman to form a 6.0 tpi two-ply yarn. The winding speed was about 50ypm. Subsequently, the cabled yarns were heat set on a Suessen with dry air at 200°C. The residence time in the channel is about 60 seconds. The heat-treated yarn was converted to a 35 oz / sq. yd., 1 / 12 gauge, 3 / 8" pile height cut pile carpet.

Embodiment 2

[0057] Embodiment 2 (the present invention)

[0058] use figure 2 Two strands of 922 denier beige solution-dyed nylon 66 BCF made of cationic dyeable polymer were cable twisted at 7000 rpm on a Volkman to form a 6.0 tpi two-ply yarn. The winding speed was about 50ypm. Insert the chemical applicator between the take-up roll and winder as described in Figure 3 Option A. 50% A-201 antifouling chemical was applied to the cabled yarn at about 20% pick-up by weight with a ½ inch wide cotton wick (Wet Wick, Perperell MA). The cabled yarn was passed through the wet core at about 50ypm. Subsequently, the cabled yarns were heat set on a Suessen with dry air at 200°C. The residence time in the channel is about 60 seconds. The heat set yarn was analyzed to have 925 ppm fluorine. The heat-treated yarn was converted to a 35 oz / sq. yd., 1 / 12 gauge, 3 / 8" pile height cut pile carpet.

Embodiment 3

[0059] Embodiment 3 (the present invention)

[0060] use figure 2 Two strands of 922 denier beige solution-dyed nylon 66 BCF made of cationic dyeable polymer were cable twisted at 7000 rpm on a Volkman to form a 6.0 tpi two-ply yarn. The winding speed was about 50ypm. Such as figure 2 Insert the chemical applicator between the take-up roll and winder as described in . 25% A-201 stain repellant chemical was applied to the cabled yarn with a ½ inch wide cotton wick (Wet Wick, Perperell MA). The cabled yarn was passed through the wet core at about 50ypm. Subsequently, the cabled yarns were heat set on a Suessen with dry air at 200°C. The residence time in the channel is about 60 seconds. The heat set yarn was analyzed to have 445 ppm fluorine. The heat-treated yarn was converted to a 35 oz / sq. yd., 1 / 12 gauge, 3 / 8" pile height cut pile carpet.

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PUM

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Abstract

Disclosed are processes for applying anti-soil compositions onto BCF yarns during cable or air twisting processes prior to weaving, knitting or tufting into finished carpet. The process foregoes the need for downstream environmentally unfavorable dyeing and low pH chemical treatment processes on the finished carpet. The anti-soil composition can be comprised of a high specific surface energy chemical or other material, for example a fluorochemical. Further, the anti-soil composition can further comprise an anti-stain component. Also disclosed are systems, BCF yarns, and carpets made from the BCF yarn treated by the disclosed process.

Description

field of invention [0001] The present invention relates to methods of antifouling applications for bulked filament (BCF) carpets and related fabrics, and in particular to incorporating antifouling during the cable twisting or air twisting process prior to weaving, knitting or tufting. Method for applying substances to BCF yarns. The method eliminates the need to treat carpets and other fabrics made from BCF yarns, thus eliminating costly and environmentally unfavorable dyeing and low pH chemical treatments. Also disclosed herein are systems for applying anti-soil formulations to BCF yarns and anti-soil yarns and carpets having improved anti-soil properties made from BCF yarns of the disclosed methods. technical background [0002] Carpets and other fabrics are currently treated with surface chemicals in order to improve stain and / or stain resistance. For nylon carpets, both stain repellants (eg, acid dye repellants) and stain repellents with fluorochemicals are traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/277D06B3/08D06M15/263
CPCD06B3/06D06M15/256D06M15/277D06M15/576D06M2101/34D06M2200/10D06M2200/01Y10T428/2925Y10T428/23957A47G27/02D02G3/34
Inventor 董为海R.里滕豪斯D.雷诺
Owner INVISTA TECHNOLOG IES S A R L
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