METHOD FOR THE PRODUCTION OF PATTERNED DESIGNS

• US 20070170610A1
• Filed: 02/14/2006
• Published: 07/26/2007
• Est. Priority Date: 02/15/2005
• Status: Abandoned Application

• Current Assignee: Voith Paper Patent GmbH
• Original Assignee: Voith Paper Patent GmbH
• Inventors: Payne, Justin, Ponton, David, Rigby, Alister
• Application Number:
  US11/276,110
• Publication Number:
  US 20070170610A1
• Time in Patent Office: Days
• US Class Current: 264/13
• CPC Class Codes: B29C 48/02 Small extruding apparatus, e.g. handheld, toy or laboratory extruders
• CPC Class Codes: B29C 48/155 Partial coating thereof
• CPC Class Codes: B29C 48/266 Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
• CPC Class Codes: B29C 64/106 using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• CPC Class Codes: D04H 1/495 for formation of patterns, e.g. drilling or rearrangement
• CPC Class Codes: D04H 18/04 with water jets
• CPC Class Codes: D04H 3/11 by fluid jet
• CPC Class Codes: D04H 3/16 with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• CPC Class Codes: D21F 1/0027 Screen-cloths
• CPC Class Codes: D21F 1/0036 Multi-layer screen-cloths
• CPC Class Codes: D21F 11/006 Making patterned paper
• CPC Class Codes: D21F 7/08 Felts
• CPC Class Codes: Y10T 442/3545 Woven fabric layers impregnated with a blend of thermosetting and thermoplastic resins

Abstract

A method for the production of a fabric for industrial use comprising extruding polymer material onto a carrier structure to produce a patterned design on the carrier structure, wherein a cross-sectional profile of the extruded polymer material is substantially convex. An apparatus for carrying out the method comprising a polymer extrusion apparatus structured and arranged to move in three mutually perpendicular directions. A fabric comprising a carrier structure and a patterned design comprising extruded polymer material arranged on the carrier structure, wherein the extruded polymer material is arranged to form a substantially convex cross section on the carrier structure. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Claims

1. A method for producing an industrial use fabric, comprising:

extruding polymer material onto a carrier structure to produce a patterned design on the carrier structure,

wherein a cross-sectional profile of the extruded polymer material is substantially convex.

2. The method as claimed in claim 1, wherein the patterned design is a three-dimensional patterned design.

3. The method as claimed in claim 1, wherein the patterned design is continuous in some regions.

4. The method as claimed in claim 1, wherein the patterned design is non-continuous in some regions.

5. The method as claimed in claim 1, wherein the patterned design is an isolated structure.

6. The method as claimed in claim 5, wherein the carrier structure comprises a belt coated for subsequent detachment of the patterned design.

7. The method as claimed in claim 1, wherein the patterned design comprises a continuous line of substantially constant cross section.

8. The method as claimed in claim 1, wherein the patterned design comprises a continuous line with varying cross section.

9. The method as claimed in claim 8, wherein the continuous line with varying cross section is formed by lining up polymer beads in a row with one another.

10. The method as claimed in claim 9, wherein the polymer beads are produced using a polymer extrusion apparatus movable in three mutually perpendicular directions.

11. The method as claimed in claim 10, wherein the polymer extrusion apparatus is drivable to produce three-dimensional patterned designs.

12. The method as claimed in claim 10, wherein the polymer extrusion apparatus comprises at least one of a spraying head and an extrusion head.

13. The method as claimed in claim 10, wherein the polymer extrusion apparatus comprises at least one extrusion tube.

14. The method as claimed in claim 1, wherein a viscosity of the polymer material is greater than 70,000 cP.

15. The method as claimed in claim 14, wherein the viscosity of the polymer material lies in a range from about 100,000 cP to about 150,000 cP.

16. The method as claimed in claim 1, wherein a height of the patterned design lies in a range from about 0.001 mm to about 5 mm.

17. The method as claimed in claim 1, wherein a height of the patterned design above the carrier structure lies in a range from about 0.001 mm to about 5 mm.

18. The method as claimed in claim 1, wherein a ratio of a width of the patterned design to a height of the patterned design lies in a range up to 1:

1.

19. The method as claimed in claim 1, wherein the polymer material comprises at least one of;

silicone, polyureas, and low molecular weight oligomers.

20. The method as claimed in claim 1 further comprising producing the patterned design with at least one laser head.

21. The method as claimed in claim 1, further comprising varying a penetration depth of the polymer material.

22. The method as claimed in claim 21, wherein the penetration depth is varied by at least one of:

varying a polymer tack and driving a spraying head or extrusion head in a vertical (z) direction.

23. The method as claimed in claim 1, wherein the extruding comprises introducing a filament or yarn into the polymer material.

24. The method as claimed in claim 1, wherein the extruding comprises extruding two or more polymer materials simultaneously through an extrusion or feed tube.

25. The method as claimed in claim 1, further comprising applying the polymer material to a forming fabric or to a TAD fabric to produce a decorative patterned design.

26. The method as claimed in claim 1, wherein the patterned design comprises an undulating z-direction profile.

27. The method as claimed in claim 1, further comprising applying the patterned design to a forming fabric, whereby a watermark effect is producible in a sheet through redistribution of solids content of the sheet.

28. The method as claimed in claim 1, further comprising applying or introducing the patterned design to or into a press felt, whereby a pattern is producible by pressing a sheet to cause a bodily impression in the sheet.

29. The method as claimed in claim 1, further comprising applying or introducing the patterned design to or into a dryer fabric, whereby a pattern is producible during a drying phase of a sheet through a bodily impression in the sheet.

30. The method as claimed in claim 1, further comprising applying the patterned design to at least one region of a belt or the fabric.

31. The method as claimed in claim 1, further comprising applying machine direction lines of the polymer material of various height over a width of the fabric.

32. The method as claimed in claim 1, further comprising applying the patterned design to a fabric assigned to a non-woven machine for air-layering or spun non-woven production.

33. An apparatus for carrying out the method as claimed in claim 1, comprising:

a polymer extrusion apparatus structured and arranged to move in three mutually perpendicular directions.

34. The apparatus as claimed in claim 33, wherein the polymer extrusion apparatus is drivable to produce three-dimensional patterned designs.

35. The apparatus as claimed in claim 33, wherein the polymer extrusion apparatus comprises at least one of a spraying head and an extrusion head.

36. The apparatus as claimed in claim 33, wherein the polymer extrusion apparatus comprises at least one extrusion tube.

37. The apparatus as claimed in claim 36, wherein the polymer extrusion apparatus is structured and arranged to supply two or more polymers simultaneously via the extrusion tube.

38. The apparatus as claimed in claim 33, wherein the polymer extrusion apparatus is structured and arranged to introduce a filament or yarn into the polymer material during the extruding.

39. The apparatus as claimed in claim 33, wherein the polymer extrusion apparatus comprises at least one laser head.

58. The method as claimed in claim 1, wherein the fabric comprises a papermachine fabric.

59. The method as claimed in claim 30, wherein the belt or fabric comprises a forming fabric or TAD fabric.

60. The method as claimed in claim 59, wherein the patterned design is applied to at least one of seal edges and in-register introduce a company logo by one of watermarks or bodily impression in a sheet.

40. A fabric, comprising:

a carrier structure,

a patterned design comprising extruded polymer material arranged on the carrier structure;

wherein the extruded polymer material is arranged to form a substantially convex cross section on the carrier structure.

41. The fabric as claimed in claim 40, wherein the patterned design is three-dimensional.

42. The fabric as claimed in claim 40, wherein the patterned design comprises continuous regions.

43. The fabric as claimed in claim 40, wherein the patterned design comprises non-continuous regions.

44. The fabric as claimed in claim 40, wherein the patterned design is produced as an isolated structure.

45. The fabric as claimed in claim 40, wherein the patterned design comprises a continuous line of substantially constant cross section.

46. The fabric as claimed in claim 40, wherein the patterned design comprises a continuous line having a varying cross section.

47. The fabric as claimed in claim 46, wherein the continuous line comprises polymer beads arranged in row, and the polymer beads are structured and arranged to form the varying cross section.

48. The fabric as claimed in claim 40, wherein a viscosity of the extruded polymer material is greater than 70,000 cP.

49. The fabric as claimed in claim 47, wherein the viscosity lies in a range from about 100,000 cP to about 150,000 cP.

50. The fabric as claimed in claim 40, wherein a height of the patterned design lies in a range from about 0.001 mm to about 5 mm.

51. The fabric as claimed in claim 40, wherein a height of the patterned design above the carrier structure lies in a range from about 0.001 mm to about 5 mm.

52. The fabric as claimed in claim 40, wherein a ratio between a width of the patterned design to a height of the patterned design lies in a range up to 1:

1.

53. The fabric as claimed in claim 40, wherein the extruded polymer material comprises at least one of:

silicone, polyureas, and low molecular weight oligomers.

54. The fabric as claimed in claim 40, wherein the patterned design is produced, at least in some regions, by lasering.

55. The fabric as claimed in claim 40, wherein the patterned design comprises a filament or yarn arranged in the extruded polymer material.

56. The fabric as claimed in claim 40, wherein the patterned design comprises two or more extruded polymer materials that were simultaneous supplied.

57. The fabric as claimed in claim 40, wherein the patterned design comprises an undulating z-direction profile.

61. The fabric as claimed in claim 40, wherein the fabric comprises a papermachine fabric.