摘要:
A portable UV detection apparatus is disclosed. In one embodiment, the UV detection apparatus includes a UV detection device integrated with a skin type measuring device. A controller can be included in the apparatus that is in communication with the skin type measuring device and the UV detection device. The controller can provide information to the user regarding the amount of ultraviolet radiation present in the environment. In an alternative embodiment, the UV detection apparatus includes a UV detection device in conjunction with a light sensor. The light sensor can be configured to activate the UV detection device should light at a particular intensity be present in the environment. The UV detection device as described above can be configured to measure UVA radiation, UVB radiation, and/or UVC radiation.
摘要:
An absorbent structure expands to a greater extent along one surface than along an opposite surface when in the presence of a liquid. The absorbent structure may include a single layer, or two or more layers intimately bonded to one another. When in the presence of a liquid, the more expandable surface causes an increase in concavity in the X-Y plane of the structure, with the concavity being in the direction of the less expandable surface. One or both surfaces can be treated to adjust the respective level of expandability. By inducing a formed shape upon hydration swelling, a trough shape can be generated to facilitate absorbent properties, containment, and fit. The invention includes absorbent articles having such an absorbent structure incorporated therein.
摘要:
A hybrid absorbent foam includes an integrated hybrid foam layer having an open surface, a closed surface, and a foam body extending between the open and closed surfaces. The integrated hybrid foam layer has an open-cell content of at least 50%, while the closed surface provides a barrier to aqueous liquids. The integrated hybrid foam layer is formed as a single layer, and has a substantially uniform polymer composition throughout its thickness. The integrated hybrid foam layer combines the functions of liquid absorbency, retention, and barrier into a single layer, and is useful in a wide variety of absorbent articles.
摘要:
A thermoplastic foam composite has at least one active agent layer, which includes active agent materials that are coated with a thermal-sticky polymer, and which is bonded to at least one surface of a soft, flexible, absorbent thermoplastic foam layer. The thermoplastic foam composite can exhibit desirable active agent properties while maintaining sufficient integrity, absorbency, and/or flexibility for specific applications. In some aspects, an adhesive can be utilized to assist with bonding the active agent layer to the thermoplastic foam layer. The thermoplastic foam composite can be utilized as an article, such as a packaging, wiper, towel, or insulation product, or can be incorporated as a component into a variety of other articles, including personal care articles, health/medical articles, and household/industrial articles, for example.
摘要:
An absorbent structure expands to a greater extent along one surface than along an opposite surface when in the presence of a liquid. The absorbent structure may include a single layer, or two or more layers intimately bonded to one another. When in the presence of a liquid, the more expandable surface causes an increase in concavity in the X-Y plane of the structure, with the concavity being in the direction of the less expandable surface. One or both surfaces can be treated to adjust the respective level of expandability. By inducing a formed shape upon hydration swelling, a trough shape can be generated to facilitate absorbent properties, containment, and fit. The invention includes absorbent articles having such an absorbent structure incorporated therein.
摘要:
A process for making an absorbent fibrous web composite including a stable, controllable dispersion of superabsorbent polymer is provided. A pre-formed web, desirably including cellulose fibers and, optionally, thermoplastic fibers is provided. First and second superabsorbent polymer precursor compositions are added to the fibrous web using separate streams. The first and second superabsorbent polymer precursor compositions combine with each other and chemically react on or in the fibrous web, to form a superabsorbent polymer which sticks to the surface of the fibrous web.
摘要:
An in-line formed web or other material (such as foams) having major surfaces in the X-Y plane and a depth in the Z direction is suitable for use as an integral fluid distribution and fluid retention material in a disposable absorbent article. The web or material contains multiple zones of material which may have both thermoplastic fibers/materials and absorbent material components. The multiple zones can have different compositions of thermoplastic fibers/materials and absorbent material as applied in-line by various arrangements of thermoplastic melt dies and absorbent fiber/material dispensers. By arranging at least two of the multiple zones in an opposing relation overlaid in the Z-axis direction of the web/material, a gradient can be formed in the Z-direction of the web/material. In the case of airforming, by coordinating the timing and deposition of the material onto a forming wire, at least one of the multiple zones is arranged to have intermittent material deposition in at least one of a machine direction or a cross direction of the web. Thus the in-line formed integrated web has a Z-direction gradient of air laid material zones and zones of different materials intermittently placed in one of the machine direction or the cross direction and may be customized according to the specific need for a single overall structure having fluid intake, distribution and retention properties in an absorbent article.
摘要:
A process for forming an absorbent fibrous web composite includes the initial step of forming a fibrous web from hydrophilic fibers and, optionally, thermoplastic fibers. Then, a superabsorbent polymer is completely formed in situ on or in the fibrous web by adding one or more superabsorbent polymer precursor compositions to the fibrous web using a non-contact process, and performing the polymerization reaction(s) completely on or in the web.
摘要:
The present invention provides an absorbent article (10) having a longitudinal direction (26), and a lateral, cross direction (24). The article includes a liquid permeable top sheet layer (28), a substantially liquid impermeable backsheet layer (30), and an absorbent structure (32) having a primary retention portion (48) sandwiched between the top sheet and backsheet layers. The retention portion (48) includes a wet-formed mixture of fibers and superabsorbent material. The retention portion has a selected edge-wise compression value, such as an edge-wise compression value of not more than a maximum of about 9 g/gsm, and a modified circular bend value, such as a modified circular bend value of at least minimum of about 0.3 g/gsm. In particular aspects, the retention portion (48) can include cellulosic fibers.
摘要:
A process for making an absorbent composite including absorbent fibers, superabsorbent polymer and, optionally, thermoplastic fibers and other ingredients is provided. The synthesis (i.e., polymerization) of the superabsorbent is completely integrated into the process for forming the absorbent composite. Specifically, the polymerization of superabsorbent is initiated from within a plurality of absorbent and/or thermoplastic fibers, which are then formed into a web. The integrated process eliminates the need for separate manufacture of superabsorbent polymer prior to the fiber forming and web forming processes. Also, the superabsorbent polymer thus formed tends to disperse better and remain adhered to the absorbent and/or thermoplastic fibers, providing a stable and uniform absorbent composite for various end use applications.