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US 4,728,530 AGranted
Method for mending damaged areas in papermachine fabrics
AssigneeHermann Wangner GmbH & Co. KG
InventorsHartmut Waldvogel, Georg Borel
Life of this patent
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Abstract
A method for mending a damaged area in a papermachine fabric includes filling the defective area with a photosensitive resin, irradiating the defective area with ultraviolet light through a first mask having a multiplicity of light impervious dots in order to crosslink the irradiated regions and rinsing away the non-crosslinked regions of the photosensitive resin. The patch produced in this way is firmly bonded to the fabric of the papermachine fabric and also has a permeability sufficient for dehydration of the paper pulp.
Claims6
A method for mending damaged areas in papermachine fabrics comprising:
- filling the damaged area with a radiation curable resin;
- irradiating the damaged area with the exception of a plurality of spaced apart dot-like areas in order to crosslink the resin in the irradiated areas;
- and
- rinsing the area filled with resin to remove the noncrosslinked areas of the photosensitive resin.
1 more element
Dependencies are inferred from the claim text.