摘要:
A sensor wipe, made in part by a hydroentangling or conforming process, includes fibers onto which an indicator dye is immobilized. The substrate may be used to make sensor wipes for testing surface conditions, including but not limited to pH or the presence of certain microbes. The indicator dye does not leach from the sensor wipe. The indicator dye may be reversible so that the sensor wipe can be reused prior to disposal.
摘要:
A technique for identifying a vein in a patient is disclosed. The technique involves the application of a thermochromic ink to a venous area on the skin of a patient (e.g., human or animal). The thermochromic ink comprises thermosensitive color-changing microcapsules that contain a proton-accepting chromogen and a desensitizer. The desensitizer possesses a melting point above which the chromogen is capable of becoming protonated, thereby resulting in a color change. Thereafter, the venous area is observed for the color change.
摘要:
This invention relates to high surface area materials, such as nanoparticles, that are coated with metal ions. These modified nanoparticles have active sites that bind various gases and/or odorous compounds, thereby removing these compounds from a medium such as air or water. Metal ions are adsorbed onto the surface of the nanoparticle and bound strongly to the surface. By selection of the metal ion, specific gaseous compounds and/or odorous compounds can be targeted and removed efficiently and effectively from both aqueous phase and from the air. The modified nanoparticles are useful in numerous article of manufacture for industrial and consumer use.
摘要:
A method for detecting the onset of ovulation in a female mammal is provided. The method includes contacting mouth air of the female mammal with an arylmethane test chromogen in an amount effective to undergo a rapid and detectable color change in the presence of one or more volatile sulfur compounds. The color of the test chromogen is compared to a control color that corresponds to a pre-ovulatory sulfur content. The difference in color between the test chromogen and the control color is correlated to the onset of ovulation.
摘要:
The present invention is generally directed to a nonwoven fabric having a plurality of coated fibers, the coating including silane and dialdehyde, and, in certain embodiments, further including particles.
摘要:
Anti-viral tissues are provided with a pH indicator which can communicate to a tissue user by means of visual indicia, via color changes, that the tissue has active ingredients. Furthermore, the pH indicators can be used to illustrate neutralization of the pH of infected nasal discharge, which has a higher pH than healthy nasal discharge, giving the user a reason to believe that the product is working to deactivate virus.
摘要:
A wearable article made from a nonwoven fabric that includes a plurality of coated fibers. The coated fibers have an exterior surface and a coating composition on at least a portion of the exterior surface. The coating composition includes an aminofunctionalized silane and a dialdehyde, where the weight percent of the dialdehyde in the coating composition is greater than the weight percent of the silane in the coating composition. The wearable article can be a wrap, brace, support, compression hosiery, bandage or compress. When worn, the wearable article is initially flexible but becomes rigid and stiff when the coated fibers experience a sudden force or impact. The wearable article does not include a fluid.
摘要:
Processes of using treatment chambers for separating compounds in an aqueous effluent are disclosed. More particularly, the treatment chambers use ultrasonic energy and an electrode potential to provide efficient and effective removal of compounds from aqueous effluents, such as textile effluents.
摘要:
There is provided a moisture indicator for a heat and moisture exchange (HME) device that uses a pre-colorant and an activator applied to an inner surface of the HME device. The colorant undergoes a color change of Delta E (ΔE) of equal to or greater than 3 units upon exposure to moisture but not upon exposure to high humidity. The colorant is visually obvious to the unaided human eye under normal light conditions through the body of the device. The HME device with the visual indicator for moisture can indicate to the care-giver that it is time to change the HME device.
摘要:
This invention concerns extrudates having high surface area materials and at least one metal ion adsorbed onto the high surface area material. The extrudates may be breathable films, multilayer laminates and pultruded articles. The extrudates may be made into storage and packaging material to reduce odor and retard the ripening of fruit. The extrudates, if in the form of a breathable film or multilayer laminate may be used as outer cover material for personal care products like diapers, adult incontinence products, training pants and the like. The high surface area particle-containing extrudate may be made by adding modified nanoparticles to a filler before the filler is treated with a fatty acid. Alternatively, a filler previously treated with a fatty acid may be modified by subjecting the filler to sonic energy in the presence of an aqueous solution of metal ions and nanoparticles.