摘要:
A resealable pack having a body portion formed substantially of flexible sheet material and defining an article-receiving cavity. The body portion comprises a first end defined by an end wall and tapers to a second end spaced apart from the first end. The body portion also comprises a face in which is defined a dispensing opening. A resealable sealing member is secured to the body portion and, in a closed position, covers the opening in sealing contact with the body portion around the periphery of the opening. A plurality of sheet-form articles is disposed within the cavity in the form of a flattened roll, with one end of the roll being capable of extending through the opening.
摘要:
A synthesis is described for the preparation of cationic polymer materials with a semisynthetic matrix, having superabsorption characteristics towards water and saline solutions. More particularly, cellulose cationic derivatives are described, having superabsorption characteristics, which are obtained starting from cellulose substrates which are reacted with an excess of quaternary ammonium compound in an alkaline medium.
摘要:
A disposable sanitary towel (1) comprising a liquid-permeable upper layer (5), an impermeable lower layer (7) and an absorbent element (6), is provided with an intermediate layer (10) disposed between the upper layer (5) and the absorbent element (6) and extending around the side edges (8) of the absorbent element (6) such that it can distribute the liquid received and prevent losses of liquid from the side edges of the absorbent element (6). The towel (1) is further provided with an absorbent element (6) comprising an improved layer structure.
摘要:
Polyetheramidoamine hydrogels consisting of polyetheramidomaine and/or polyamidoamine prepolymers crosslinked by Michael's nuceophilic polyaddition with alpha-omega-diamino monomers or with alpha-omega-diamino monomers or oligomers; said hydrogels having a swelling degree in water higher than 500% and are useful as superabsorbent materials.
摘要:
A thin, layered, absorbent structure comprises first and second layers of fibrous material and an intermediate layer comprising particles of a hydrogelling, absorbent material and particles of a thermoplastic, polymeric, organic material, the first and second fibrous layers extend beyond the intermediate layer laterally to form longitudinal edge portions.The two fibrous layers are bound together with the intermediate layer between them by the melting of the particles of thermoplastic, polymeric, organic material and by means of a continuous line of adhesive extending longitudinally on each longitudinal edge portion.
摘要:
A fibrous composition for absorbent pads which, in addition to cellulose fibers, also contains first and second synthetic polymeric materials. At least the second polymeric material is constituted by synthetic fibers which have a higher melting point than that of the first polymeric material. The fibrous mixture is formed into the desired shape, for example, an absorbent body for disposable sanitary products, by pneumatic means. The absorbent body thus formed is then heat-treated to a temperature higher than the melting point of the first polymeric material but lower than that of the second polymeric material for a period of time so as to melt the first polymeric material and form bonding points or bridges between at least the synthetic fibers which have not melted and which constitute the second polymeric material. The absorbent body is cooled to a temperature such that the first polymeric material sets, bonding at least the synthetic fibers together so as to form a framework containing the cellulose fibers.
摘要:
Disclosed is a thin, layered, absorbent structure comprising first and second layers of fibrous material and an intermediate layer comprising particles of a hydrogelling, absorbent material, in an amount exceeding 120 g/m.sup.2, and particles of a thermoplastic, polymeric, organic material; the first and second fibrous layers extend beyond the intermediate layer laterally to form longitudinal edge portions. The two fibrous layers are bound together with the intermediate layer between them by the melting of the particles of thermoplastic, polymeric, organic material and by means of a continuous line of adhesive extending longitudinally on each longitudinal edge portion.
摘要:
An absorbent element for absorbent articles comprised of hydrophilic fibers and a discontinuous, non-uniform layer of particles of absorbent hydrogelling material arranged on the upper surface of the element includes a deposition zone on which the absorbent hydrogelling material is distributed with an increased surface density.The zone of increased surface density of the absorbent hydrogelling material can preferably be located in different positions suitable for the different anatomical forms of the users, so as to ensure more effective sealing against the backflow of the liquid and thus ensure an improved feeling of dryness.
摘要:
An article for absorbing fluid includes a fluid-storage region and a fluid receiving region. The fluid receiving region releases fluid to the fluid storage and has a dry laid web of staple fibers with a high bulkiness. The article may be used for treating female incontinence.
摘要:
Absorbent core for disposable absorbent articles, particularly for the absorption of menses or blood. The absorbent core has at least two layers. A first layer having cellulose fibers that is substantially free of absorbent gelling materials; and a second layer having fibers and an absorbent gelling material and is substantially free of cellulose fibers.