摘要:
A disposable undergarment having a tape fastener for releasably joining front and rear regions of the undergarment to each other is disclosed. The tape fastener includes a relatively soft base panel member extending laterally outward from a transverse side edge of the undergarment, relatively rigid fastening panel members provided at longitudinally spaced apart locations of the base panel member and an adhesive region provided between the fastening panel members.
摘要:
Each lateral waist region of a disposable garment in the form of a diaper 1 at least partially 13 comprises a pair of breathable nonwoven fabrics 21, 22 being extendible circumferentially of the diaper but normally under no tension and elastically stretchable hot melt adhesive 23 applied on respective inner surfaces of the nonwoven fabrics 21, 22 so as to extend continuously in the circumferential direction but intermittently in the vertical direction, wherein the adhesive 23 is applied with no tension on the nonwoven fabrics 21, 22.
摘要:
Disclosed is a vacuum breaker having further enhanced reliability. The vacuum breaker comprises: a main body having a water inlet (26, 41), a water outlet (34, 48), a water passage (30, 44) for fluidically connecting the water inlet and the water outlet, and a first ambient-air intake port (36, 50) and a second ambient-air intake port (37, 49) for allowing the water passage to fluidically communicate with ambient air therethrough; a first valve element (28, 42); and a second valve element (32, 46) disposed downstream of the first valve element. The first valve element is designed to be movable between a first position allowing the water inlet to fluidically communicate with a zone of the water passage between the first and second valve elements, when water is permitted to pass through the water passage, and a second position allowing the first ambient-air intake port to fluidically communicate with the zone of the water passage between the first and second valve elements, when water is inhibited from passing through the water passage. The second valve element is designed to be movable between a first position allowing the zone of the water passage between the first and second valve elements to fluidically communicate with the water outlet, when water is permitted to pass through the water passage, and a second position allowing the second ambient-air intake port to fluidically communicate with the water outlet, when water is inhibited from passing through the water passage.
摘要:
A water-retentive sheet manufactured from a cellulose based fiber of high water-retentivity. The cellulose based fiber of high water rententivity includes a core formed from a component of non-cellulose based material of high absorbency uniformly contained in a cellulose fiber and a sheath formed around the core and formed from cellulose based fiber. The cellulose fiber can be viscose rayon and the non-cellulose based material of high absorbency can be polyacrylate salt.
摘要:
In a disposable diaper having a liquid-absorbent core which comprises, in turn, fluff pulp of less than 70% by weight and superabsorbent polymer particles of 30% or higher by weight, an isolating fibrous layer is placed on an upper surface of the liquid holding layer, then these liquid holding layer and isolating fibrous layer are integrally covered with a liquid-permeable covering layer such as a tissue paper, and these layers are intermittently bonded one to another over the entire extents of the respective laminating surfaces.
摘要:
Bulky split fibers having bond strength are produced by preparing a composite synthetic resin film of three layer structure having a polypropylene layer formed of a polypropylene/polyethylene blend and a polyethylene layer on either surface of the polypropylene layer, slitting and stretching the composite film to thereby form stretched tapes, and causing splitting of the stretched tapes for fibrillation. An integral article is prepared from the resultant split fibers by mixing them alone or with plant fibers and then heating at a temperature between the melting points of polyethylene and polypropylene, thereby integrating together the split fibers with each other or with the plant fibers.
摘要:
Disclosed is a vacuum breaker having further enhanced reliability. The vacuum breaker comprises: a main body having a water inlet (26, 41), a water outlet (34, 48), a water passage (30, 44) for fluidically connecting the water inlet and the water outlet, and a first ambient-air intake port (36, 50) and a second ambient-air intake port (37, 49) for allowing the water passage to fluidically communicate with ambient air therethrough; a first valve element (28, 42); and a second valve element (32, 46) disposed downstream of the first valve element. The first valve element is designed to be movable between a first position allowing the water inlet to fluidically communicate with a zone of the water passage between the first and second valve elements, when water is permitted to pass through the water passage, and a second position allowing the first ambient-air intake port to fluidically communicate with the zone of the water passage between the first and second valve elements, when water is inhibited from passing through the water passage. The second valve element is designed to be movable between a first position allowing the zone of the water passage between the first and second valve elements to fluidically communicate with the water outlet, when water is permitted to pass through the water passage, and a second position allowing the second ambient-air intake port to fluidically communicate with the water outlet, when water is inhibited from passing through the water passage.
摘要:
A method of manufacturing a cellulose based fiber of high water-retentivity. The cellulose based fiber of high water rententivity is manufactured by mixing together a stock solution as a homogeneous mixture of a non-cellulose based material of high absorbency and a cellulose based material and a stock solution singly composed of cellulose based material by means of a nozzle. Then the mixture is formed into a complex fiber as a sheath-core type by spinning, elongation and refining the mixture.
摘要:
To prevent body fluids from flowing backward through a liquid-permeable topsheet for use in body fluids absorptive goods, the topsheet is formed by a nonwoven fabric made of thermoplastic synthetic fibers appropriately fused together and the topsheet is provided with openings and a skin-contacting region continuously extending around the openings. A first zone of the topsheet has a water-resistance at least in the skin-contacting region which is higher than a water-resistance in a second zone extending outside the first zone so as to suppress a back flow of body fluids possibly occurring in the skin-contacting region.
摘要:
A topsheet for use in body fluid absorptive articles is so improved that collapse and clogging of liquid passages therein may be reliably avoided. The topsheet includes an upper sheet, provided with skin-contacting areas and liquid passages, and a lower sheet provided with skin-non-contacting areas, areas welded to the liquid passages, and exposed areas. The exposed areas are welded to each of the liquid passages around lower openings thereof so as to protect the liquid passage against collapse and clogging. The exposed areas define a skin-contacting surface which rises up into each of the liquid passages without extending above the upper surface of the skin-contacting areas. The upper sheet cooperates with the lower sheet to define cavities extending in the direction of the topsheet thickness.