2659results about "Tampons" patented technology

This invention is directed to advanced hemorrhage control wound dressings, and methods of using and producing same. The subject wound dressing is constructed from a non-mammalian material for control of severe bleeding. The wound dressing for controlling severe bleeding is formed of a biomaterial comprising chitosan, a hydrophilic polymer, a polyacrylic polymer or a combination thereof. The kind of severe, life-threatening bleeding contemplated by this invention is typically of the type not capable of being stanched when a conventional gauze wound dressing is applied with conventional pressure to the subject wound. The wound dressing being capable of substantially stanching the flow of the severe life-threatening bleeding from the wound by adhering to the wound site, to seal the wound, to accelerate blood clot formation at the wound site, to reinforce clot formation at the wound site and prevent bleed out from the wound site, and to substantially prohibit the flow of blood out of the wound site.

A disposable absorbent core comprises first and second absorbent layers each comprising an absorbent particulate polymer material such that the absorbent particulate polymer material is substantially continuously distributed across an absorbent particulate polymer material area. A disposable absorbent article and method for making the absorbent core are also disclosed.

An absorbent article is disclosed having a topsheet, a backsheet joined with the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a synthetic superabsorbent polymer derived from a first renewable resource via at least one intermediate compound, wherein said superabsorbent polymer exhibits a defined Saline Flow Conductivity value and Absorption Against Pressure value. Alternately, an absorbent article is disclosed having a synthetic polyolefin derived from a first renewable resource via at least one intermediate compound. The synthetic polyolefin exhibits defined performance characteristics making the polyolefin particularly useful in certain components of the absorbent article. Methods for making the aforementioned absorbent articles are also disclosed.

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor/indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and/or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor/alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber/sensor for test, caregiver-training or demonstration purposes.

The present invention relates to absorbent articles, such as diapers and sanitary napkins, and acquisition members useful for such articles. More specifically, the invention relates to an acquisition member comprising a multitude of fibers and a latex binder, the liquid acquisition member having a void volume of at least 7 cubic centimeter per gram in the temperature range from 20° C. to 40° C., the binder comprising a dispersion of a polymer substance in an essentially aqueous medium, the polymer substance being capable of forming a film, said film having a tan δ value, as defined herein, at 20° C. and at 40° C., wherein the tan δ value at 40° C. is not greater than said tan δ value at 20° C.

A liquid acquisition material for use in an absorbent article. The liquid acquisition material having first fibers and second fibers. The first fibers are chemically cross-linked cellulose fibers and the second fibers are selected from the group consisting of: polyethylene, polypropylene, polyester, rayon, lyocell, and mixtures thereof. The liquid acquisition material has a total dry weight, the first fibers have a first dry weight, and the second fibers have a second dry weight. The first dry weight is from 30 to 95 percent of the total dry weight and the second dry weight is from 5 to 70 percent of the total dry weight.

An absorbent article comprising a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet is disclosed. The topsheet has a first side and a second side, the first side being a body-facing side and the second side being in fluid communication with the absorbent core. The topsheet also has a first relatively hydrophobic component and a second relatively hydrophilic component, the relatively hydrophilic component extending through the relatively hydrophobic component and being disposed on both of the sides of the topsheet. The absorbent article exhibits a rewet value of less than about 94 mg, and a fluid acquisition rate of at least about 0.10 ml/sec when tested by the Gush Acquisition and Rewet Test Method.

The present invention relates to a method of applying absorbent gelling material (AGM) granules by indirect printing onto an carrier layer for use in an absorbent article, particularly diaper for babies or adults, training pants, pull-up diapers (diaper pants), sanitary napkins, panty liners or the like. These articles typically comprise the carrier layer with the AGM particles together with further layers, making up the complete article.

A fibrous web having a first surface and a second surface. The fibrous web has a first region and at least one discrete second region, the second region being a discontinuity on the second surface and being a tuft comprising a plurality of tufted fibers extending from the first surface. The tufted fibers define a distal portion, the distal portion comprising portions of the tufted fibers being bonded together. Bonding can be thermal melt-bonding. In another embodiment the second surface of the web can have non-intersecting or substantially continuous bonded regions, which also can be thermal melt-bonding.

There is disclosed a water-absorbing agent which combines both performances of the capillary suction force and the liquid permeability. This water-absorbing agent is a particulate water-absorbing agent comprising water-absorbent resin particles (α) and a liquid-permeability-enhancing agent (β), wherein the water-absorbent resin particles (α) are surface-crosslink-treated particles of a crosslinked polymer of a monomer including acrylic acid and/or its salt; with the water-absorbing agent being characterized in that the particulate water-absorbing agent has: a mass-average particle diameter (D50) in the range of 234 to 394 gm, a logarithmic standard deviation (σξY) of a particle diameter distribution in the range of 0.25 to 0.45, an absorption capacity without load (CRC) of not less than 15 g/g, and a water-extractable component content of not higher than 15 mass %; and further a liquid-permeability-enhancing agent (β) content in the range of 0.01 to 5 mass parts per 100 mass parts of the water-absorbent resin particles (α).

A tri-folded disposable absorbent article comprising a substantially cellulose free absorbent core located in a chassis between a topsheet and a backsheet and comprising absorbent particulate polymer material. An array of absorbent article packages comprising disposable absorbent articles comprising a substantially cellulose free absorbent core is also disclosed.

In an ultra-thin absorbent sheet member 1a in which an absorbent polymer powder 3 is adhered to one surface of a first nonwoven fabric 2 by a hotmelt adhesive such that absorbent polymer powder present areas 2c and absorbent polymer powder absent areas 2a, 2b exist; the absorbent polymer powder absent areas are present at opposite widthwise ends (2a) of the ultra-thin absorbent sheet member and at least one position (2b) between the opposite ends; the absorbent polymer powder 3 is bonded to the first nonwoven fabric 2 by first hotmelt adhesive layers S1 formed on an upper side of the first nonwoven fabric 2 and on a lower side of the absorbent polymer powder 3 and a second hotmelt adhesive layer S2 formed to cover upper sides of the absorbent polymer powder present areas 2c and the absorbent polymer powder absent areas 2a, 2b; and the first hotmelt adhesive layer S1 and the second hotmelt adhesive layer S2 are both made of an aggregate of linear hotmelt adhesive pieces.

Absorbent hygiene products comprising a core of an absorbent material and a top sheet through which fluid to be absorbed passes for absorption by the absorbent material are disclosed. The top sheet is porous and comprises a sheet having surfaces of a hydrophobic polymeric material modified by a graft copolymerization reaction between those surfaces and a vinyl monomer having a group capable of exhibiting hydrophilic properties. The graft polymerization reaction comprising exposure of the sheet to ultraviolet radiation while impregnated with a solution of the vinyl monomer. The grafted vinyl monomer comprises a substantially uniform coating of the sheet surface and having a mean thickness not more than about 3.0 mum. Methods for producing this absorbent hygiene product are also disclosed.

A disposable absorbent article worn about the lower torso of a wearer includes at least one serviceable indicium that facilitates the process of fitting the absorbent article to the wearer by providing an apparent visual and physical indication when the article is not properly fitted. The apparent visual and physical indication includes a detectable distortion of the waist opening, the leg openings or both the waist opening and the leg openings. The detectable distortion includes at least one serviceable indicium disposed on a portion of the waist opening or leg opening or both that becomes flipped in towards an inner surface of the article or flipped out towards the outer surface of the article when the article is not properly fitted.

An elongated, flexible, flat conductive tape can be applied to any surface to be monitored for water or other liquid leaks, and electrically connected to any suitable type of conventional electrically operated leak detector. A pair of parallel spaced conductors is disposed on one side of the tape that run longitudinally along the length thereof. The conductors are spaced from one another by a small distance to insure that only a small quantity of water or other conductive liquid is necessary to bridge the gap between the conductors, and create an electrical short circuit or substantial impedance reduction between the two. In addition, the conductors are preferably as flat as possible to insure that liquid can freely flow transversely across them without being impeded thereby. Both of these features insure that the detector tape can sense even very small quantities of liquid, thereby generating an early warning of a leak condition before extensive damage results. A liquid responsive visible indication is also provided on the tape to identify the location along the tape where water or other leaking liquid has come in contact therewith, and eliminates the need for using an expensive sensing device to locate the source of a leak.

In one embodiment, taped and pant articles of the present disclosure may comprise first and second chassis that are at least substantially identical.

A wound packing for use with suction is provided. The wound packing comprises a plurality of nonabsorbent synthetic polymeric fibers coupled together to form a nonabsorbent material suitable for placement in the wound of a mammal. A method for treating the wound in a mammal using the disclosed wound packing is also provided.

A disposable absorbent article includes a chassis and an absorbent core which is substantially cellulose free. The chassis may contain a topsheet and a backsheet. The absorbent core may be located between the topsheet and the backsheet and may include (i) a storage layer which comprises an absorbent particulate polymer material and has a wearer facing side and an opposed garment facing side, (ii) a first core wrap sheet covering the wearer facing side of the storage layer, and (iii) a second core wrap sheet covering the garment facing side of the storage layer, the first core wrap sheet being joined to the second core wrap sheet along at least one traverse sealing zone.

A laminate web comprising a first web, a second web joined to the first web at a plurality of discrete bond sites; and a third material disposed between at least a portion of the first and second nonwovens. The third material is apertured in regions adjacent the bond sites, such that the first and second nonwoven webs are joined through the apertures. In one embodiment an apertured laminate web is disclosed, having a first extensible web having a first elongation to break, and a second extensible web joined to the first extensible web at a plurality of bond sites, the second extensible web having elongation to break. A third web material is disposed between the first and second nonwovens, the third web material having a third elongation to break which is less than both of the first or second elongations to break. In a further embodiment, an apertured laminate web is disclosed, having first and second extensible webs being joined at a plurality of discrete bond sites and a third material disposed between the first and second nonwoven webs. The first and second nonwoven webs are in fluid communication via the apertures and have distinct regions being differentiated by at least one property selected from the group consisting of basis weight, fiber orientation, thickness, and density.

In one embodiment, taped and pant articles of the present disclosure may comprise first and second chassis that are at least substantially identical.

A multi layered wound dressing for use on wounds producing high levels of exudate, the dressing comprising a transmission layer having a high MVTR; an absorbent core capable of absorbing and retaining exudates; and a wound contacting layer which transmits exudate to the absorbent core, the absorbent core and wound contacting layer limiting the lateral spread of exudate in the dressing to the region of the wound.

A process is disclosed for forming a synthetic fiber including providing a first component of an aliphatic polyester polymer a second component of a multicarboxylic acid, mixing the first component aliphatic polyester polymer and the second component multicarboxylic acid to form an unreacted specified thermoplastic composition, and melt blending the unreacted specified thermoplastic composition in an extruder or a mixer. The second component multicarboxylic acid lubricates the extruder and provides a nucleating agent for crystallizing the specified thermoplastic composition to form a mean crystal size less than about 120 Angstroms. Fiber composed of the specified thermoplastic composition has a mean crystal size less than about 120 Angstroms. The fiber has a glass transition temperature (Tg) less than about 55 DEG C. In one aspect, a first component of polylactic acid and a second component of adipic acid provide synthetic fibers in a nonwoven structure used in a biodegradable and compostable disposable absorbent product for the absorption and removal of body fluids.

A stretchable outer cover for use with an absorbent article including an elastomeric film. The elastomeric film includes at least one skin layer that is less tacky than at least one core layer. The outer cover can include a nonwoven layer different structural combinations of spunbond fibers, meltblown fibers, and/or nanofibers. The combination of plastic and elastic components results in an outer cover that has favorable mechanical, physical, and aesthetic properties. The outer cover can be rendered either uniaxially or biaxially stretchable via a mechanical activation process.

Wetness indicating compositions having improved colorant retention and durability and to wearable articles comprising this wetness indicating composition are provided.

A fastening system has a first fastening member and a second fastening member. The first member has a retaining element and a substrate element. The retaining element includes a proximal edge and a distal edge and is attached to the substrate element along a line of attachment. The second fastening member has an inboard portion, an outboard portion, and an elongated opening disposed between the inboard and outboard portions. The elongated opening is configured such that at least part of the retaining element is capable of passing through the elongated opening when the retaining element is in a first orientation and when the retaining element is in a second orientation.

An absorbent article comprising a central absorbent member and a lateral wicking barrier for inhibition of wicking from the central regions of the article to an outlying outer absorbent member. The wicking barrier has a vertical component for prevention of radial wicking in the plane of the article and thus promotes center filling of the article with fluid and reduces the likelihood of leaks from the sides of the article. The wicking barrier can also have a horizontal component to prevent leakage, redirect fluid flow, and improve fit and performance of the article. In one embodiment, the central absorbent member is a concentric absorbent structure having alternating rings of barrier material and absorbent material, including a spiral wound composite formed from a layer of barrier material wound with a layer of absorbent material and then sliced to provide a thin absorbent layer having high permeability in the thickness direction but low permeability in the plane due to the barrier material.

A stretch laminate includes a first layer including an elastomer film, the first layer having a surface, and a second layer including a nonwoven material, the second layer having a surface that is attached to the surface of the first layer. The tensile behavior in the transverse direction of the stretch laminate is within about 2.5 N/cm of the tensile behavior in the transverse direction of the film at an engineering strain of about 1.5, and exists independent of mechanical activation. A method of making the stretch laminate and an absorbent article having at least one region defined by the stretch laminate are also provided.

Absorbent articles and processes for making absorbent articles are provided. The process includes spraying onto a fibrous web a blend containing superabsorbent polymer particles, superabsorbent forming monomer, initiator and water, and subjecting the web to polymerization conditions. The resulting web is useful as an absorbent article particularly in disposable hygiene products.

An absorbent article having an ultimate fluid storage region and a fluid distribution region, positioned between the ultimate storage region and the garment oriented surface of the article, in fluid communication with the ultimate fluid storage region, the ultimate fluid storage region includes a material which has: (1) a Capillary Sorption Desorption Capacity at 100 cm (CSDC 100) of at least 10 g/g; (2) a Capillary Sorption Desorption Capacity at 0 cm (CSDC 0) higher than the CSDC 100; (3) a Loosely Bound Liquid Capacity (LBLC); and (4) a Capillary Sorption Desorption Release Height when 50% of the LBLC are released (CSDRH 50) less than 60 cm. Further, the liquid distribution layer material has a Capillary Sorption Absorption Height at 30% of its maximum capacity (CSAH 30) of at least 35 cm. Distribution material can be foam materials, particularly those derived from high internal phase water-in-oil emulsions.

The present invention relates to absorbent articles comprising nonwoven fabrics, which are made hydrophilic by polymers chemically bonded to the surface of the nonwoven fabrics.

Moreover, the invention relates to a process for making hydrophilic fibers, which can be formed into a nonwoven fabric.