Abstract: The invention relates to the entire method for arranging parallel yarns from a warp on a cotton lap having passed through a card or a combing machine or other textile machine used for the same purpose, forming a composite lap of parallel yarns and a lap of irregularly arranged untwisted cotton fibrils. The end result is a firm lap in which many of the untwisted cotton fibrils are wrapped coaxially around each so-called carrier yarn, forming the corresponding composite yarn, and the remaining fibrils are perpendicular to the composite yarns, providing the resulting lap with a consistency such that it can both be cut to obtain the yarns comprising an untwisted cotton sheath, and also used for any desired purpose.

Abstract: Composition for treatment of the oral cavity and corresponding uses. The composition comprises the combination of a chlorhexidine derivative, for example chlorhexidine digluconate, with triclosan and a zinc salt, for example zinc lactate or citrate. Preferably the chlorhexidine digluconate is present in a concentration of between 0.01 and 0.2%, the triclosan in a concentration of between 0.05 and 1%, and the Zn ion in a concentration of between 0.01 and 4%, expressed in weight with respect to the total weight of the composition. The composition can preferably be used for preparing a toothpaste, a gel or a mouthwash, for anti-plaque and/or gingivitis treatment.