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Physical and mechanical properties of fabrics by hydroentangling

a technology of hydroentanglement and physical and mechanical properties, applied in the field of fabrics having antipilling properties, can solve the problems of lowering the commercial value of fabrics, and achieve the effect of reducing the surface pilling tendency and improving the abrasion resistance of pillable fabrics

Inactive Publication Date: 2005-06-16
NORTH CAROLINA STATE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] In accordance with one embodiment of the present subject matter, a method for reducing the surface pilling tendency and also improving abrasion resistance of a pillable fabric is disclosed.
[0015] The method further includes reducing the presence of the fibrils on the at least one fabric surface to an amount wherein the pilling production on the fabric is less than about 20% after 5,000 cycles of abrasion on a Martindale device according to ASTM D4970 testing standard. The fibrils are also reduced to an amount wherein the remaining mass of the fabric is at least about 80% to 90% after 50,000 cycles of abrasion on a Martindale device according to ASTM D4966 testing standard.
[0016] It is therefore an object of the present subject matter to provide a method for reducing the pilling tendency and improving abrasion resistance of a pillable fabric utilizing a finishing hydrointanglement process that results in the removal or entanglement of pilling-causing fibrils such that the tendency of the fabric to pill is greatly reduced, as gauged by pilling production calculated or remaining mass calculated after a set number of abrasion test cycles.

Problems solved by technology

This undesirable pilling effect occurs with the lapse of time and wear and the tendency to pill generally lowers the commercial value of the fabrics.

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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  • Physical and mechanical properties of fabrics by hydroentangling
  • Physical and mechanical properties of fabrics by hydroentangling
  • Physical and mechanical properties of fabrics by hydroentangling

Examples

Experimental program
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examples

Test Methods and Standards Reporting

[0040] Experiments were conducted on sample fabrics using hydroentanglement system 40 (see FIG. 3B) in order to determine the effect on mechanical properties (pilling, abrasion, etc.) and hand improvement of a finished textile utilizing the finishing concept of the present subject matter. Different settings of the hydroentanglement process were tested for physical properties with the results presented below.

[0041] The samples exposed to hydroentangling were subjected to the hydroentangling process as described hereinabove. The hydroentangling process system comprised one bank of three (3) water jet manifolds that enhanced the top surface (face) of the fabric and one bank of two (2) water jet manifolds that enhanced the bottom surface (back) of the fabric. The manifold pressures of the systems were as shown in Table 1.

TABLE 1Water Jet PressuresManifold PositionBeam Pressure (bar)Manifold 1 - Face pre-wet60Manifold 2 - Face entangling150Manifold...

example i

The Effect of the Tightness Factor

[0045] Referring to FIGS. 5-14, experiments were first run on a single type of fiber composition at various fiber tightness factors. Due to its vast usage in the garment industry, the sample textile fabric chosen consisted of a single jersey structure knitted on a circular knitting machine (gauge 18) incorporating yarns of 100% cotton (Ne 18 / 1 cp ringspun; 35 Tex). Three tightness factor fabrics 15 were used and various samples were either washed or not washed and were broken down into groups including no hydroentangling passes, one hydroentangling pass, and two hydroentangling passes. The samples were identified as shown in Table 2.

TABLE 2Descriptions of Sample SetSurface# ofSampleTightnessMassThicknessHydroentanglingIDfactor(g / m2)(mm)PassesWash / DryC16.0016.001830.5970NoNHC16.0016.001830.5971No1PC16.0016.001830.5971Yes1P WC16.6716.671880.6100NoNHC16.6716.671880.6101No1PC16.6716.671880.6101Yes1P WC17.5617.561990.6480NoNHC17.5617.561990.6481No1PC1...

example ii

The Effect of Fiber Composition and Hydroentangling Parameters

[0064] Referring now to FIGS. 15-17, experiments were additionally run on fabrics of various compositions and at varying hydroentangling processing parameters. The textile fabric structure comprised a single jersey construction with a 17.5 tightness factor. The fabric compositions were formed as shown in Table 4 and the samples and hydroentangling parameters (for those samples that were hydroentangled) were identified as shown in Table 5.

TABLE 4Fabric CompositionsFiberTightness factorSurface Mass(g / m2)100% cotton17.522950 / 50 Cotton / polyester17.5216100% Polyester17.5199

[0065]

TABLE 5Descriptions of Sample Set and Hydroentangling ParametersBeltNumberSamplePressurePressurePressurePressurePressureBelt typespeedofID#1(bar)#2(bar)#3(bar)#4(bar)#5(bar)Mesh / inch(m / min)PassesFiber1a60150200150200100101Cotton1b60150200150200100102Cotton1c60150200150200100103Cotton2a60150200150200100101Co / Poly3a60150200150200100101Polyester4a60150...

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Abstract

Methods for reducing the surface pilling tendency and improving abrasion resistance of a pillable fabric are disclosed. The methods include providing a pillable fabric including fibrils extending from the surfaces thereof, supporting the fabric, and exposing the fabric to a hydroentanglement process that imparts an energy in the range of at least about 4000 to 5000 KJoules / Kg of fabric using pressures of 200 bars or greater. The presence of fibrils on the fabric surface are reduced to an amount wherein the pilling production on the fabric is less than about 20% after 5,000 cycles of abrasion on a Martindale device according to ASTM D4970 testing standard and the fabric remaining mass is at least about 80% to 90% after 50,000 cycles of abrasion on a Martindale device according to ASTM D4966 testing standard.

Description

RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60 / 529,490, filed Dec. 15, 2003; the disclosure of which is incorporated herein by reference in its entirety.TECHNICAL FIELD [0002] The subject matter disclosed herein relates generally to fabrics having antipilling properties. More particularly, the present subject matter relates to methods for reducing the pilling tendency and improving abrasion resistance of a pillable fabric through the use of a hydroentanglement process. BACKGROUND ART [0003] Cotton and cotton blend woven and knitted fabrics have a great tendency to be subjected to pilling or generate so-called “pills”. Many other staple fibers and blends thereof when formed into woven and knitted fabrics also have a tendency to pill. Pills are small bunches or balls of interlaced fluff caused by small bundles of entangled fibers clinging to the cloth surface by one or more surface fibrils. Pilling is typically preced...

Claims

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Application Information

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IPC IPC(8): D04HD04H1/46D06C29/00D06M10/00
CPCD06C29/00D04H1/465D04H1/492
Inventor POURDEYHIMI, BEHNAM
Owner NORTH CAROLINA STATE UNIV
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