Abstract: This invention identifies important geometric parameters of an adhesive microfiber with mushroom-shaped tip for improving and optimizing adhesive ability. The magnitude of pull-off stress is dependent on a wedge angle ? and the ratio of the tip radius to the stalk radius ? of the mushroom-shaped fiber. Pull-off stress is also found to depend on a dimensionless parameter x, the ratio of the fiber radius to a length-scale related to the dominance of adhesive stress. Finally, the shape of edge tip, where the surface and sides of the mushroom-shaped tip join, is a factor that impacts strength of adhesion. Optimizing ranges for these parameters are identified.

Abstract: The disclosure relates to a shape-woven preform which has an omega-shaped cross-section including a core and a sole. At least one part of the core and at least one part of the sole have weft yarns in common with one another.

Abstract: A fiber is provided with a polymer having a cross-section and a length. A particulate is distributed in the polymer in an amount to make the fiber detectable by X-ray detection or magnetic detection. The particulate is present in a core, a sheath, or both portions of polymer matrix. A process of detecting a fabric article is provided that includes the formation of a fiber in the form of a polymer having a cross-section and a length. A particulate is distributed in the polymer. A fiber is formed into a fabric. A fabric article is then manufactured from the fabric. The fabric article passes through an X-ray detector or a magnetic detector. A signal is collected from the X-ray detector or the magnetic detector indicative of the presence of the fabric article.

Abstract: This invention claims hot melt adhesive compositions that can be used to form elastic composites that are useful in disposable absorbent articles. The compositions have good elastic recovery and high peel adhesion at a viscosity of less than about 20,000 cps at 177° C. The low viscosity makes it possible to apply the adhesive at a high line speed and target application to only those areas requiring elastic performance.

Abstract: Examples of a printable medium are disclosed herein. In one example, the printable medium includes an opaque substrate that is substantially free of polyvinyl chloride (PVC). The substrate includes a fabric core having I(x)/I0 equal to or less than 0.005, wherein I(x) is an intensity of light remaining at a distance, x, where x is the distance that light travels through the substrate, and wherein I0 is an initial intensity of light at x=0. The substrate further includes a discrete barrier layer disposed on the fabric core. The barrier layer includes a copolymer of ethylene and vinyl acetate having a polyethylene-to-vinyl acetate ratio ranging from about 20:1 to about 9:1. The printable medium further includes a tie layer coated on the discrete barrier layer, and an image receiving layer coated on the tie layer.

Abstract: The present invention discloses a security yarn containing a multi-composite spinning fiber and security products using the same. The multi-composite spinning fiber, according to the present invention, contains, in at least one or more kinds of polymer materials, a first component selected from an IR reactive pigment or an IR absorption pigment, a second component selected from a visible pigment or an invisible UV-reactive fluorescent pigment, and a third component selected from X-ray absorption materials, so that the security yarn containing the multi-component spinning fiber can be identified by infrared and ultraviolet wavelength and easily identified when irradiated with X-rays, thus providing a multi-identification capability and being useful for preventing counterfeiting.