Abstract: A fibrous, porous web material of the heat seal type having improved particulate retention properties for use in the manufacture of beverage infusion bags. The material comprises juxtaposed, successively wet laid first (1), second (5) and third (7) fibrous layers, at least one of said layers incorporating heat sealable fibres. The fibres in the first layer are of greater aspect ratio than those in the second layer which are of higher aspect ratio than those in the third layer.

Abstract: A fibrous, porous web material of the non-heat seal tissue having a basis weight of 9-18 gm-2 and comprises a first layer and a second layer juxtaposed thereto wherein the second layer. The first layer comprising vegetable fibers and a second layer comprising hardwood fibers, the second layer has a smaller pore size than the first layer. The paper is useful for producing beverage infusion bags (e.g. teabags) from which there is minimal passage of fine particles from the bags into their packaging.

Abstract: A wound dressing comprises an absorbent material and a surface layer of a non-absorbent wet laid apertured fabric having a smooth substantially planar surface. The non-absorbent apertured fabric preferably serves to present a soft smooth surface to the wound, maximizing conformability to the wound and minimizing any possibility of adherence of the dressing to the latter. Absorption of exudate from the wound by the absorbent material takes place largely through the apertures in the fabric. The fabric is preferably rendered non-absorbent by a coating of an acrylic latex.