Manufacture of papermachine fabrics

• US 20060019567A1
• Filed: 07/20/2005
• Published: 01/26/2006
• Est. Priority Date: 07/21/2004
• Status: Abandoned Application

• Current Assignee: The Voith Fabrics Patent GmbH
• Original Assignee: The Voith Fabrics Patent GmbH
• Inventors: Sayers, Ian
• Application Number:
  US11/184,891
• Publication Number:
  US 20060019567A1
• Time in Patent Office: Days
• US Class Current: 442/218
• CPC Class Codes: D21F 1/0063 Perforated sheets
• CPC Class Codes: D21F 7/083 Multi-layer felts
• CPC Class Codes: Y10T 442/3301 Coated, impregnated, or autogenous bonded

Abstract

Paper machine clothing method including covering an extended working surface with successive layers of a resultant material. Treating each successive layer with an energy source in accordance with predetermined instructions before adding a next successive layer to build up a three-dimensional fabric 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 of manufacturing papermachine clothing comprising:

covering an extended working surface with successive layers of a resultant material; and

treating each successive layer with an energy source in accordance with predetermined instructions before adding a next successive layer to build up a three-dimensional fabric structure.

2. The method as claimed in claim 1, wherein the treating of successive layers is carried out selectively, since that portions of each layer include a treated portion and an untreated portion.

3. The method as claimed in claim 1, wherein the energy source produces optical radiation.

4. The method as claimed in claim 3, wherein the energy source comprises one of a UV laser and IR laser.

5. The method as claimed in claim 4, wherein the energy source comprises at least one IR laser.

6. The method as claimed in claim 1, wherein the resultant material used is a plastic material.

7. The method as claimed in claim 6, wherein the plastic material comprises a UV-curable resin.

8. The method as claimed in claim 7, wherein the UV-curable resin is a UV-crosslinkable resin.

9. The method as claimed in claim 7, wherein the UV-curable resin comprises an acrylated epoxy product.

10. The method as claimed in claim 7, wherein the UV-curable resin is cured from a liquid state.

11. The method as claimed in claim 6, wherein the plastic material is at least partially processed in an inert atmosphere.

12. The method as claimed in claim 6, wherein the plastic material comprises a particulate thermoplastic material.

13. The method as claimed in claim 12, wherein the plastic material comprises at least one of PPS, PEEK, polyolefin and polyamide.

14. The method as claimed in claim 12, wherein the thermoplastic material is presented in a dry and distributed form.

15. The method as claimed in claim 14, wherein the thermoplastic material is formed as one of an microspheres and submillimeter particles.

16. The method as claimed in claim 1, wherein during the application of the layers to the working surface the method further includes arranging, reinforcing yarns either transversely, not transversely or at least partially transverse with respect to the intended machine direction of the paper machine fabric.

17. An apparatus comprising:

at least one extended working surface;

at least one dispensing head structured and arranged for movement over and for dispensing a material onto the at least one extended surface;

at least one energy source mounted for movement over the at least one extended working surface;

a control device coupled to the at least one energy source to selectively treat and not treat portions of the dispensed material with the energy source.

18. The apparatus according to claim 17, wherein the at least one dispensing head is structured and arranged to dispense successive layers of material;

and

the control device being structured and arranged to treat and not treat portions of each successive layer with the energy source before a next successive layer is added.

19. The apparatus according to claim 17, wherein a fabrication zone extends across the width of a upper pass and in a running direction of the extended working surface, such that the fabrication zone is boarded by one or more walls;

at least two of the side walls each are arranged at an edge of the extended working surface, such that at least two of the walls are adjustable in height;

a front wall facing the running direction of the extended working surface, such that the front wall is slidably engagable with the extended working surface;

an adjustable rear wall is adjustable over the material arranged on the extended working surface;

wherein the material is passed through at least one purging station and at least one curing station after exiting the extended working surface.

20. The apparatus according to claim 17, wherein each successive layer is above 0.1 thickness, such that the material is approximate 2.0 mm in thickness or about 20 successive layers.