Chemically modified nonwoven articles and method for producing the same

• US 6,602,437 B1
• Filed: 02/08/2002
• Issued: 08/05/2003
• Est. Priority Date: 02/08/2002
• Status: Expired due to Fees

• Current Assignee: Milliken & Company
• Original Assignee: Milliken & Company
• Inventors: Sturm, Raymond C., Miller, Brian C.
• Primary Examiner(s): Green, Anthony J.
• Application Number:
  US10/071,335
• Time in Patent Office: 543 Days
• Field of Search: 252/8.61, 252/8.62, 252/8.84
• US Class Current: 252/8.62
• CPC Class Codes: D06M 15/227 of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
• CPC Class Codes: D06M 15/256 containing fluorine
• CPC Class Codes: D06M 15/263 of unsaturated carboxylic acids; Salts or esters thereof
• CPC Class Codes: D06M 15/507 Polyesters
• CPC Class Codes: D06M 15/564 Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
• CPC Class Codes: D06M 15/643 containing silicon in the main chain
• CPC Class Codes: D06M 2200/35 Abrasion, pilling or fibrillation resistance

Abstract

A chemically modified nonwoven textile article and method for producing the same is provided that exhibits pilling resistance, soil release, strength, and abrasion resistance properties, thus rendering the article less prone to the formation of objectionable pill balls, staining, or loss of strength, thereby increasing wearer comfort and retaining the desired appearance of the article, and thereby extending the useful life of the article. A composition of matter for chemically modifying a nonwoven textile article to achieve pilling resistance, soil release, strength, and abrasion resistance is also provided.

Claims

1. A composition of matter for chemically modifying a nonwoven textile article to achieve pilling resistance, soil release, strength, and abrasion resistance comprising:

a hydrophilic silicone, a soil release agent, wherein the soil release agent is selected from the group consisting of acrylic, fluorocarbon, liquid polyester, and combinations thereof, an abrasion resistance agent, wherein the abrasion resistance agent is selected from the group consisting of polyethylene, polyurethane, and combinations thereof, and water.

2. The composition of matter of claim 1, wherein the concentration of hydrophilic silicone is between about two and about eight weight percent on weight of the composition of matter.

3. The composition of matter of claim 1, wherein the soil release agent is acrylic and the concentration of said acrylic is between about 2 and about 12 weight percent on weight of the composition of matter.

4. The composition of matter of claim 1, wherein the soil release agent is fluorocarbon and the concentration of said fluorocarbon is between about 0.5 and about 6 weight percent on weight of the composition of matter.

5. The composition of matter of claim 1, wherein the soil release agent is liquid polyester and the concentration of said liquid polyester is between about 2 and about 6 weight percent on weight of the composition of matter.

6. The composition of matter of claim 1, wherein the abrasion resistance agent is polyethylene and the concentration of said polyethylene is between about 8 and about 16 weight percent on weight of the composition of matter.

7. The composition of matter of claim 6, wherein the abrasion resistance agent is polyethylene and said polyethylene is a high-density polyethylene, wherein said high-density polyethylene has a melting point of greater than about 124 degrees Celsius.

8. The composition of matter of claim 1, wherein the abrasion resistance agent is polyurethane and the concentration of said polyurethane is between about 6 and about 18 weight percent on weight of the composition of matter.

9. The composition of matter of claim 1, wherein the composition of matter further includes a wetting agent.

10. The composition of matter of claim 9, wherein the composition of matter further includes a wetting agent and said wetting agent is an ethoxylated long chain alcohol.

11. The composition of matter of claim 10, wherein the wetting agent is an ethoxylated long chain alcohol and the concentration of said ethoxylated long chain alcohol is between about 0.20 and about 0.30 weight percent on weight of the composition of matter.

12. The composition of matter of claim 1, wherein the composition of matter further includes a defoaming agent.

13. The composition of matter of claim 12, wherein the composition of matter further includes a defoaming agent and said defoaming agent is selected from the group consisting of mineral oil, silicone, and de-aerating agents.

14. The composition of matter of claim 13, wherein the defoaming agent is mineral oil and the concentration of said mineral oil is between about 0.05 and about 2 weight percent on weight of the composition of matter.