Process for increasing the absorption capacity of the core of disposable diapers and disposable diapers thus obtained

摘要

Process for increasing the absorption capacity of the core of disposable diapers and disposable diapers thus obtained.The present invention relates to a process for increasing the absorption capacity of the core of disposable diapers for children and adults and geriatric.By adding chemical additives to the absorbent core of the finished products.More specifically, the process consists of the steps of: (a) defibration of cellulose configured in reels.Without breakage of the fiber and its properties of capillarity are preserved; (b) formation of the nucleus.Consisting of or heterogeneamente mix evenly and the cellulose fibres with grains of super absorbent polymer and formed in a shape with a three-dimensional configuration.This operation occurs and the integration of chemical additives; (c) application of 2 or more additives, in the form of grain, powder or liquid, to the core, and the urea combined with sugars.These combined with the diuru00e9ia and / or with functional polymers as tetrasodium EDTA.The application of these compounds by means of direct mixing with cellulose desfibrada and with the polymer super absorbent.In quantities that may vary from 5 to 30% of the amount of super absorbent polymer in normal conditions of formation of the absorbent core of the diaper; (d) completion of the diaper.With the wrapping the core with tissue paper, followed by the application of hot melt adhesive to attach the upper part and the lower part of the diaper (polyethylene film and non-woven fabric).Concurrent with the application of elastic legs and hydrophobic non-woven fabric of the barrier.The invention also relates to disposable diapers, obtained through the above process, these being produced for use in children, adults and / or geriatric.