Textile surface

• US 7,867,571 B2
• Filed: 12/29/2006
• Issued: 01/11/2011
• Est. Priority Date: 02/02/2001
• Status: Expired due to Fees

• Current Assignee: Schoeller Textil AG (Albers & Company)
• Original Assignee: Schoeller Textil AG (Albers & Company)
• Inventors: Lottenbach, Roland, Hubner, Hans-Jurgen
• Primary Examiner(s): CAMERON, ERMA C
• Application Number:
  US11/618,680
• Publication Number:
  US 20070151039A1
• Time in Patent Office: 1,474 Days
• Field of Search: None
• US Class Current: 427/385.5
• CPC Class Codes: D06N 2205/02 Dispersion
• CPC Class Codes: D06N 2209/141 Hydrophilic
• CPC Class Codes: D06N 2209/142 Hydrophobic
• CPC Class Codes: D06N 2211/10 Clothing
• CPC Class Codes: D06N 3/0088 by directly applying the resin D06N3/0045 takes precedence
• CPC Class Codes: D06N 3/047 with fluoropolymers
• CPC Class Codes: D06N 3/128 with silicon polymers
• CPC Class Codes: D06N 3/186 one of the layers is on one surface of the fibrous web and the other layer is on the other surface of the fibrous web

Abstract

The aim of the invention is to produce a textile surface (1), one side of which exhibits hydrophilic properties and the other side hydrophobic properties, whose overall cross-section is hydrophilic. To achieve this, a paste (11) consisting of a viscous emulsion or dispersion of paraffin, polysiloxane and/or fluorine compounds is applied to one side. The layer that has been formed by the first paste (11) is then stabilized by means of a drying process (4) and a second paste (12), consisting of a hydrophilic polymer is subsequently applied to the other side of the textile surface (1), said paste being stabilized by an additional drying process (5). Said steps provide a textile surface (1), which can be produced simply and cost-effectively, is extremely comfortable to wear and which ensures that moisture is immediately absorbed on the hydrophilic side, dispersed over a large area and rapidly removed, whereas the hydrophobic side of said textile surface (1) repels water.

Claims

1. A process for manufacturing a textile surface having hydrophobic properties on a first side of the textile surface and hydrophilic properties on a second side of the textile surface, comprising:

continuously applying an emulsion or dispersion comprising at least one component selected from the group consisting of;

paraffin, polysiloxane and fluorine compounds, and 1 to 5 parts of a synthetic thickening agent or a natural thickening agent to the first side of the textile surface to form a first coating wherein the emulsion or dispersion is applied to the textile surface as a paste with a viscosity of 5,000 to 10,000 mPa·

s,

stabilizing the first coating in a first drying process,

applying a composition comprising hydrophilic polymers to the second side of the textile surface to form a second coating, and

stabilizing the second coating in a second drying process,

wherein the textile surface is hydrophilic across its complete cross-section.

2. The process according to claim 1, wherein the composition comprising hydrophilic polymers is a liquor and comprises 1 to 100 parts dispersion of hydrophilic polymers and 99 to 0 parts water.

3. The process according to claim 1, wherein the composition comprising hydrophilic polymers is applied to the textile surface as a liquor.

4. The process according to claim 3, wherein the liquor is applied to the textile surface using a soaking bath, an applicator roll, or a spray head.

5. The process according to claim 4, wherein the textile surface is passed through at least one pair of pressure rolls after the textile surface is immersed in the soaking bath.

6. The process according to claim 3, wherein a coating doctor blade is used to apply the paste to the textile surface.

7. The process according to claim 3, wherein the paste comprises 2 to 100 parts of emulsion or dispersion of fluorine compounds.

8. The process according to claim 3, wherein the paste comprises 2 to 100 parts of emulsion or dispersion of fluoropolymers;

98 to 0 parts water; and

wherein the thickening agent has a viscosity between about 2000 mPa·

s and about 15,000 mPa·

s.

9. The process according to claim 3, wherein the paste comprises a fluorocarbon having a solid matter content of 2.4% and a viscosity between about 5000 mPa·

s and about 10,000 mPa·

s.

10. The process according to claim 3, wherein the paste is applied to the textile surface at a rate between about 30 g/m² and about 100 g/m² and at a temperature between about 140°

C. and about 170°

C., and wherein the paste is in contact with the textile surface for at least 1 minute.

11. The process according to claim 1, wherein the textile surface is exposed to a temperature between about 80°

C. and about 200°

C. during the first and second drying processes.

12. The process according to claim 1, wherein the fluorine compound is a fluoropolymer.

13. The process according to claim 1, wherein the fluorine compound is a fluorocarbon.