US5073442A
Expired / Lapsed
US
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Method of enhancing the soil- and stain-resistance characteristics of polyamide and wool fabrics, the fabrics so treated, and treating compositions
Assignee: Trichromatic Carpet Inc
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Filing: 1989-11-08
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Granted: 1991-12-17
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Expires: 2009-11-08
Abstract
Abstract A method for enhancing the soil- and/or stain-resistant characteristics of polyamide and wool fabrics is provided. A variety of combinations of sulfonated resin, sulfonated phenolic compounds, compounds of sulfonated phenolics and aldehydes, fluorochemicals, modified wax emulsions, acrylics and organic acids of low molecular weight provide enhanced soil release and anti-stain properties.
Inventors
- 👤 Barry R. Knowlton
- 👤 Yassin Elgarhy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:27
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/004; C11D3/00; C11D3/16; C11D3/24; C11D3/245; C11D3/37; C11D3/3703; C11D3/3746; C11D3/3757; D; D06; D06M; D06M13/00; D06M13/02; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/244; D06M15/256; D06M15/263; D06M15/277; D06M15/37; D06M15/39; D06M15/41; D06M15/412; D06M2101/00; D06M2101/16; D06M2101/30; D06M2101/34; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2287
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
76 words
The method of enhancing soil- and stain-resisting properties of polyamide and wool fabrics comprising applying to the fabric an aqueous solution containing the condensation product of formaldehyde with a compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone, and benzene sulfonic acid; and at least one material selected from the group consisting of a wax emulsion and a fluorochemical; and a polymer selected from the consisting of acrylic polymer and copolymer.
Claim 2
Independent Claim
76 words
The method of enhancing soil- and stain-resisting properties of polyamide and wool fabrics comprising applying to the fabric an aqueous solution containing the condensation product of formaldehyde with a compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone, and benzene sulfonic acid; and at least one material selected from the group consisting of a wax emulsion and a fluorochemical; and a polymer selected from the consisting of acrylic polymer and copolymer.
Claim 3
Dependent Claim
19 words
The method according to claim 1, wherein the solution is an aqueous solution having a pH not exceeding 10.
Claim 4
Dependent Claim
35 words
The method according to claim 1 where the solution is an aqueous solution having a pH below 7 applied to the fabric by spraying at room temperature and in the absence of any heat fixation.
Claim 5
Dependent Claim
56 words
The method according to claim 1 wherein the condensation product is a polymer of benzene sulfonic acid and formaldehyde, the fluorochemical is a nonionic or anionic water based fluorochemical, the acrylic polymer is polymerized 2-methyl propenoic acid ethyl ester, and wherein the solution contains citric acid in an amount sufficient to provide a pH below 7.
Claim 6
Dependent Claim
24 words
The method according to claim 1 where the fluorochemical is present in the solution in an amount of between 0.1 percent and 20 percent.
Claim 7
Dependent Claim
13 words
The method according to claim 5 where the solution contains 0.1 percent fluorochemical.
Claim 8
Dependent Claim
48 words
An aqueous solution for enhancing the soil- and stain-resistant properties of polyamide and wool fabrics comprising in admixture a condensation product of an aromatic sulfonic acid and formaldehyde together with wax emulsion, a nonionic water based fluorochemical, and an acrylic polymer, said admixture having a pH below 10.
Claim 9
Dependent Claim
48 words
An aqueous solution for enhancing the soil- and stain-resistant properties of polyamide and wool fabrics comprising in admixture a condensation product of an aromatic sulfonic acid and formaldehyde together with wax emulsion, a nonionic water based fluorochemical, and an acrylic polymer, said admixture having a pH below 10.
Claim 10
Dependent Claim
13 words
The aqueous solution according to claim 7 wherein the pH is below 7.
Claim 11
Dependent Claim
67 words
A fibrous material selected from the group consisting of polyamide and wool fibrous materials having applied thereto an aqueous solution containing a polymer of a phenolic compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone and benzene sulfonic acid with an aldehyde; a fluorochemical and an acrylic polymer together with citric acid in an amount sufficient to provide a pH below 7.
Claim 12
Dependent Claim
67 words
A fibrous material selected from the group consisting of polyamide and wool fibrous materials having applied thereto an aqueous solution containing a polymer of a phenolic compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone and benzene sulfonic acid with an aldehyde; a fluorochemical and an acrylic polymer together with citric acid in an amount sufficient to provide a pH below 7.
Claim 13
Independent Claim
62 words
The method of enhancing the soil-and stain-resistance of polyamide fabric by immersing or totally wetting out said fabric with an aqueous solution containing a polymer of a phenolic compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone and benzene sulfonic acid with an aldehyde; a fluorochemical and an acrylic polymer; said solution having a pH below 7.
Claim 14
Independent Claim
62 words
The method of enhancing the soil-and stain-resistance of polyamide fabric by immersing or totally wetting out said fabric with an aqueous solution containing a polymer of a phenolic compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone and benzene sulfonic acid with an aldehyde; a fluorochemical and an acrylic polymer; said solution having a pH below 7.
Claim 15
Dependent Claim
19 words
The method according to claim 10 where the fabric is subsequently sprayed with a fluorochemical water and oil repellent.
Claim 16
Dependent Claim
31 words
The method according to claim 10 where the fabric is subsequently sprayed with a fluorochemical water and oil repellent which also contains an acrylic polymer or copolymer and a phenolic resin.
Claim 17
Independent Claim
76 words
The method of enhancing the soil- and stain-resistant properties of polyamide and wool fabrics comprising applying to the fabric an aqueous solution containing the condensation product of formaldehyde with a phenolic compound selected from the group consisting of bis(hydroxy phenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone, and benzene sulfonic acid; and at least one material selected from the group consisting of a wax emulsion and an acrylic polymer; said aqueous solution having a pH below 10.
Claim 18
Independent Claim
76 words
The method of enhancing the soil- and stain-resistant properties of polyamide and wool fabrics comprising applying to the fabric an aqueous solution containing the condensation product of formaldehyde with a phenolic compound selected from the group consisting of bis(hydroxy phenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone, and benzene sulfonic acid; and at least one material selected from the group consisting of a wax emulsion and an acrylic polymer; said aqueous solution having a pH below 10.
Claim 19
Independent Claim
61 words
The method of enhancing the soil- and stain-resistant properties of polyamide and wool fabrics comprising applying to the fabric an aqueous solution containing the condensation product of formaldehyde with a phenolic compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone, and benzene sulfonic acid, and a wax emulsion; said aqueous solution having a pH below 10.
Claim 20
Independent Claim
61 words
The method of enhancing the soil- and stain-resistant properties of polyamide and wool fabrics comprising applying to the fabric an aqueous solution containing the condensation product of formaldehyde with a phenolic compound selected from the group consisting of bis(hydroxyphenyl) sulfone, phenylsulfonic acid, dihydroxy diphenyl sulfone, and benzene sulfonic acid, and a wax emulsion; said aqueous solution having a pH below 10.
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