A weaving loom for inserting continuous material, or loosely connected material or material in pieces, in which the warp threads run in the downward direction from the warp beam to the cloth beam and herein are individually held by hooks which are anchored in guide beams between the upper warp beams and the lower cloth beam.

A weaving loom for inserting continuous material, or loosely connected material or material in pieces, in which the warp threads run in the downward direction from the warp beam to the cloth beam and herein are individually held by hooks which are anchored in guide beams between the upper warp beams and the lower cloth beam.

The invention relates to the in vitro use of a di- or tri carboxylic acid with a chain length of between 15 and 23 carbon atoms, such as agaric acids in preventing formation, decreasing formation or delaying formation of a biofilm by bacteria on abiotic surfaces.