Patent application number | Description | Published |
20100191207 | NONWOVEN FABRIC AND METHOD FOR MAKING THE SAME - The present invention aims to provide liquid-pervious nonwoven fabric allowing body fluids to be spot-permeated. | 07-29-2010 |
20120045620 | LIQUID-PERVIOUS FIBROUS NON-WOVEN FABRIC - A liquid-pervious fibrous non-woven fabric includes staple fibers made of thermoplastic synthetic resin fused together which is formed on its upper surface with a plurality of ridges, and a plurality of grooves extending in parallel in a longitudinal direction. The ridges and grooves are arranged alternately in a transverse direction. On the upper surface, some of the staple fibers extend across the ridges to the adjacent grooves on each side of the ridges and are, in the respective grooves, fused to the staple fibers of a different type from the former staple fibers. | 02-23-2012 |
20120321839 | NONWOVEN-FABRIC SHEET AND PROCESS FOR PRODUCING SAME - A nonwoven-fabric sheet having a high liquid permeation rate and a process for producing the sheet. The nonwoven-fabric sheet comprises two layers, a first layer and a second layer, and is characterized in that the first layer has a plurality of ridges and grooves which extend in parallel in the lengthwise direction, that the first layer comprises heat-fusible fibers and the second layer comprises crimped fibers, and that the sheet has an average fiber angle of 70 or less in a cross-section parallel to the lengthwise direction. The nonwoven-fabric sheet can be produced by stacking a web comprising fibers having latent crimping properties and a web comprising heat-fusible fibers, ejecting a fluid from a plurality of nozzles arranged in the width direction, while conveying the stack, to form ridges and grooves, heating the stack using a means that reduces resistance against the crimping properties of the fibers having latent crimping properties, thereby crimping the fibers having latent crimping properties, and then fusion-bonding the heat-fusible fibers. | 12-20-2012 |
20130012900 | ABSORBENT ARTICLE - An absorbent article that includes an absorber capable of absorbing a body fluid of a user, a liquid-permeable sheet covering one surface of the absorber and allowing a body fluid of the user to pass through, and a liquid-impermeable sheet covering another surface of the absorber and disallowing a body fluid of the user to pass through, wherein the color of the liquid-permeable sheet has an L* value of 88 or more, an a* value of 0 to 0.3 and a b* value of −8 to 0 in the L*a*b* color system, and the color of the absorber has a b* value of 1 to 5 and an L* value of 93 or more in the L*a*b* color system. | 01-10-2013 |
20130017370 | NON-WOVEN FABRIC SHEETAANM Yamaguchi; MasashiAACI KagawaAACO JPAAGP Yamaguchi; Masashi Kagawa JPAANM Oba; ToruAACI KagawaAACO JPAAGP Oba; Toru Kagawa JP - A sheet of nonwoven fabric for use in absorbent articles such as disposal diapers, sanitary napkins, wipes, etc., the sheet of nonwoven fabric being suitable for holding high-viscosity excreta such as soft feces. The sheet of nonwoven fabric has, formed in a first surface thereof, a plurality of ridges and grooves which extend in the machine direction. The sheet comprises a first fibrous layer and a second fibrous layer, the first fibrous layer being located on the first-surface side and the second fibrous layer being located on the second-surface side, which is on the reverse side from the first surface. The second fibrous layer comprises fibers having the ability to be crimped, and the first fibrous layer comprises heat-fusible fibers which are not crimped at the crimping initiation temperature of the fibers having the ability to be crimped. In a plan view from the first-surface side, the peripheries of the ridges have a shape which is composed of repeated meanders. | 01-17-2013 |
20130022784 | SHEET OF NON-WOVEN FABRIC AND PRODUCTION PROCESS OF SAME - A sheet of nonwoven fabric which has surface irregularities, the shape of the surface irregularities being less apt to be changed by external pressure, etc. The sheet has a machine, cross and thickness which are perpendicular to one another. The upper surface has a plurality of protrusions continuously extending, in parallel, in the cross direction and further has a plurality of recesses ( | 01-24-2013 |
20130158497 | NON-WOVEN SHEET, MANUFACTURING METHOD THEREOF AND ABSORBENT ARTICLE - A nonwoven sheet for use in absorbent articles such as disposable diapers which is capable of reducing the range of surface diffusion of, and reducing re-adhesion to the skin of, highly viscous fluid excretion. The nonwoven sheet has mutually perpendicular longitudinal, transverse and thickness directions, and has in the aforementioned thickness direction a front surface and a back surface opposite thereof. Ridges and grooves are formed alternately so as to extend in parallel in the aforementioned longitudinal direction and so as to form repeated undulations in the aforementioned transverse direction. The nonwoven sheet has a bottom surface which, when the aforementioned nonwoven sheet is placed on a horizontal surface with the back surface (opposite of the front surface in contact with the skin of the wearer) down, is the surface that contacts the aforementioned horizontal surface. On the back surface of the aforementioned grooves are formed in the aforementioned longitudinal direction alternately areas where the height from the bottom surface is relatively high and parts corresponding to the bottom surface. Openings are formed at least in the areas where the height from the bottom surface is relatively high, and a space is provided below said openings. | 06-20-2013 |
20130165883 | NONWOVEN FABRIC, METHOD FOR PRODUCING IT, AND ABSORBENT ARTICLE - A nonwoven fabric that minimizes the condition of rewet-back in which fluid absorbed into an absorbent body exudes out to the front side, as well as a method for producing it. The nonwoven fabric has a mutually perpendicular machine direction (MD), cross-machine direction (CD) and thickness direction, and has in the thickness direction a front side and a back side on the side opposite it, having on the front side heights and recesses formed so as to extend in an alternating fashion parallel to each other in the MD direction, forming repeating corrugations in the CD direction, and on the back side a back side section formed across the entire side, the heights being composed of height tips located at the tips of the heights and neck sections connecting the height tips with the back side section, the cross-sectional widths of the neck sections being narrower than the height tips in a cross-section of the heights in the CD direction, and having spaces between the recesses formed by the two neck sections supporting each of the adjacent height tips, and the back side section. | 06-27-2013 |
20140174628 | PRODUCTION PROCESS OF A NONWOVEN FABRIC SHEET - A sheet of nonwoven fabric which has surface irregularities, the shape of the surface irregularities being less apt to be changed by external pressure, etc. The sheet has a machine, cross and thickness directions which are perpendicular to one another. The upper surface has a plurality of protrusions continuously extending, in parallel, in the cross direction and further has a plurality of recesses that are located between the adjacent protrusions and extend in the cross direction. The sheet includes first and second fibrous layers located on the upper-surface side and the lower-surface side, respectively. The first fibrous layer comprises heat-fusible fibers, and the second fibrous layer comprises coil-shaped three-dimensional crimp fibers that are oriented mainly in the machine direction and form a network by entanglement thereof without having been fused at the sites where the crimp fibers cross one another. | 06-26-2014 |
20150045461 | METHOD FOR RECLAIMING USED SUPERABSORBENT POLYMER - A method enabling a used superabsorbent polymer recovered from used absorbent, etc., to be readily and inexpensively recovered without using acids or alkalies. The used superabsorbent polymer is treated with an aqueous solution of a multivalent metal salt such as calcium chloride, etc., the superabsorbent polymer treated with the aqueous solution of a multivalent metal salt is treated with an aqueous solution of an alkaline metal salt such as sodium chloride, etc., the superabsorbent polymer treated with the aqueous solution of an alkaline metal salt is washed with water, and the superabsorbent polymer washed with water is then dried. | 02-12-2015 |
20150067996 | METHOD AND DEVICE FOR RECOVERING BULK OF NONWOVEN FABRIC - A device and method for excellent recovery of bulk in nonwoven fabric. While nonwoven fabric is transported so as to enter a heating chamber via an entry opening and, after progressing within the heating chamber, exit the heating chamber via an exit opening, heated air is supplied at a speed higher than the transport speed for the unwoven fabric so as to enter the heating chamber via the entry opening and after progressing within the heating chamber while contacting the nonwoven fabric, exit the heating chamber via the exit opening. | 03-12-2015 |