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Durable press cellulosic fibrous substrates with improved physical properties

A cellulose fiber, durable technology, applied in the direction of plant fiber, wear-resistant fiber, fiber treatment, etc.

Inactive Publication Date: 2005-01-12
NANO TEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, the results obtained from these variations of conventional crosslinking treatments are not as good as desired

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The following fabric test methods were used.

[0033] After three home laundering and tumble drying cycles, the Durable Set Appearance Rating (Smoothness) was tested according to AATCC Test Method 124-1996.

[0034] Tensile strength was tested according to ASTM test method D5304-95 after one home laundering and tumble drying cycle.

[0035] Tear strength (Elmendorf Tear) was tested according to ASTM Test Method D 1424-96 after one home wash and tumble dry cycle.

[0036] Stoll was tested for flexural abrasion resistance (flex abrasion) according to ASTM Test Method D 3885-92 after one home wash and tumble dry cycle.

[0037] Water repellency was tested according to the water spray test method AATCC 22-1996.

[0038] Oil repellency was tested according to AATCC Test Method 118-1997.

[0039] Crease recovery was tested according to AATCC Test Method 66-1998.

[0040] The following materials were used:

[0041] Fabric: Harbor Twill (olive) cotton, type #535611, 7.30 o...

Embodiment 2

[0054] Following the procedure of Example 1, cotton twill fabrics (khaki, type 5356, Galey and Lord) were treated with the various formulations in Table III and tested. Table III shows the effect of additional long-lasting set resin catalyst (magnesium chloride) on long-lasting set formulations containing FSA.

[0055] The results in Table III show that an excess of resin catalyst is beneficial in the presence of FSA. When adding FSA without adding catalyst (MgCl 2 ), flatness and wrinkle recovery (WRA) decrease. Catalyst (MgCl 2 ) increases WRA, improves planarity and increases strength due to FSA.

[0056] NRW = WetAid NRW (BF Goodrich), humectant

[0057] PCR-2 = Sedgerez PCR-2

[0058] JVA=Phobotex JVA

[0059] X100=NT-X100

[0060] NPE4 0=Ultrasoft NPE=40 (MFG Chemical, Dalton, GA), softener

[0061] Catalyst KR (Omnova Solutions Inc., Greensboro, NC), MgCl 2 resin catalyst

[0062] NT-F100=50% formamidine sulfinic acid

[0063] Table III Effect of Additional R...

Embodiment 3

[0066] Following the procedure of Example 1, samples (16 x 11 inches) of 100% cotton twill (khaki, type 5356, Galey and Lord) were treated with aqueous solutions of the various formulations in Table IV. The samples were dried and cured in a 375°F Mathis Lab Dryer for 1.5 minutes and tested. Table IV shows the results of testing the physical properties of various fabrics after three home launderings.

[0067] NRW = WetAid NRW (BF Goodrich), humectant

[0068] NFR=Freerez NFR: Proprietary DMDHEU resin (Noveon Inc., Cleveland, OH), durable fixative.

[0069] JVA=Phobotex JVA

[0070] NPE40=Ultrasoft NPE=40 (MFG Chemical, Dalton, GA), softener

[0071] MG-2 = MgCl 2 resin catalyst

[0072] FSA = formamidine sulfinic acid

[0073] Table IV

[0074] Recipe#

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PUM

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Abstract

This invention is directed to a finishing method and composition for greatly increasing the tear strength and flex abrasion resistance of durable press cellulosic (including cotton) fabric, often greater than that of the untreated cellulosic fabric, without sacrificing its durable press properties.

Description

technical field [0001] The present invention relates to a finishing method and composition for greatly increasing the tear strength and flex abrasion resistance of durable shape-setting cotton fabrics without sacrificing their durable set properties. Abrasion is generally higher than untreated cotton fabrics. Background technique [0002] It is well known to impart permanent crease resistance to cellulosic fabrics such as cotton by impregnating with an aqueous solution of a suitable thermosetting resin precondensate or cellulosic crosslinking agent, usually a suitable catalyst, and finally curing the impregnated fabric. This treatment is effective in improving the wrinkle resistance and shape retention of cotton fabrics and greatly increases the demand for "easy care", "wash and wear", "permanent set" and "durable set" in today's textile market . [0003] Various methods have been developed for improving the wrinkle resistance or wrinkle recovery of fabrics and garments. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/02D06M13/248D06M13/432D06M15/227D06M15/423
CPCD06M13/248D06M15/423D06M2200/35D06M2200/20D06M13/02D06M15/227D06M13/432D06M2101/06
Inventor D·A·奥福特
Owner NANO TEX
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