摘要:
A multi-layer ballistic woven fabric, including an upper woven layer having upper warp yarns and upper weft yarns that are interwoven together to form the upper woven layer. The multi-layer ballistic woven fabric also includes a lower woven layer having lower warp yarns and lower weft yarns that are interwoven together, and a plurality of securing yarns, each securing yarn interwoven with at least some of the upper yarns and some of the lower yarns so as to secure the upper and lower woven layers together. At least one of the securing yarns is woven underneath a first lower weft yarn, then above a second upper weft yarn adjacent the first lower weft yarn, then underneath a third lower weft yarn adjacent the second upper weft yarn and then above a fourth upper weft yarn adjacent the third lower weft yarn. The multi-layer ballistic woven fabric is formed by interweaving the securing yarns with the warp yarns and weft yarns as the upper woven layer and lower woven layer are made.
摘要:
A sound-transmitting membrane (1) is provided that allows passage of sounds and prevents passage of foreign matters, the sound-transmitting membrane (1) including a supporting member (12) and a resin porous membrane (11) layered on the supporting member (12) and containing polytetrafluoroethylene as a main component. The supporting member (12) is a nonwoven fabric containing an elastomer. Since the supporting member (12) is a nonwoven fabric containing an elastomer, the insertion loss of the sound-transmitting membrane can be reduced for sounds of 3000 Hz.
摘要:
A sheet material that includes an elastic component or material (e.g., film, nonwoven web laminated to the elastic component, etc.) is provided. The elastic component is formed from a styrenic block copolymer composition containing from about 10 wt. % to about 90 wt. % of styrene-butadiene-styrene block copolymer; and from about 10 wt % to about 90 wt. % of styrene-isoprene/butadiene-styrene block copolymer. The styrenic block copolymer composition has good viscosity stability during extrusion and thus may be readily formed into an elastic sheet material. The elastic sheet material may be subsequently crosslinked to achieve the desired elastic and mechanical properties.
摘要:
Temperature resistant multilayer composites, methods for making same, and articles made therefrom. The method can include extruding one or more polyolefm polymers having a MFR from less than 90 dg/min through at least one die having a plurality of nozzles to form a plurality of continuous fibers, at least one die operating at a melt pressure from greater than 500 psi (3447 kPa) to form at least one elastic meltblown layer; adhering the at least one elastic meltblown layer to at least one extensible layer to form a multilayer composite; and at least partially crosslinking the elastic meltblown layer or the extensible layer or both.
摘要:
A multi-layer ballistic woven fabric, including an upper woven layer having upper warp yarns and upper weft yarns that are interwoven together to form the upper woven layer. The multi-layer ballistic woven fabric also includes a lower woven layer having lower warp yarns and lower weft yarns that are interwoven together, and a plurality of securing yarns, each securing yarn interwoven with at least some of the upper yarns and some of the lower yarns so as to secure the upper and lower woven layers together. At least one of the securing yarns is woven underneath a first lower weft yarn, then above a second upper weft yarn adjacent the first lower weft yarn, then underneath a third lower weft yarn adjacent the second upper weft yarn and then above a fourth upper weft yarn adjacent the third lower weft yarn. The multi-layer ballistic woven fabric is formed by interweaving the securing yarns with the warp yarns and weft yarns as the upper woven layer and lower woven layer are made.
摘要:
Disclosed is a split leather product provided with: a base material comprising split leather; and a skin layer laminated on the surface of the base material. The split leather product is characterized in that the skin layer comprises a composite body of an intertwined nonwoven fabric formed from microfibers, and an elastic polymeric substance with which the gaps of the intertwined nonwoven fabric are impregnated. In such a split leather product, the intertwined nonwoven fabric, like the horizontally and vertically crisscrossing collagen fibers in the reticular dermis, has the effect of increasing physical strength without detracting from the leather-like texture. Thus it is possible to obtain a split leather product that resembles leather not only in outward appearance, but also in the feel based on the wrinkles and the like caused by folding.
摘要:
A composite undergarment fabric has an inner side fabric layer of synthetic yarn and an outer side fabric layer of yarn selected from among moisture-absorbent hydrophilic yarn, synthetic yarn rendered hydrophilic, and combinations thereof, an inner surface of the inner side fabric layer having a non-continuous treatment of durable, water repellent chemical, and the outer side fabric layer being relatively more hydrophilic than the inner side fabric layer. The inner and outer side fabric layers may be formed concurrently by knitting a plaited construction. In another implementation, the composite undergarment fabric has a pseudo plaited construction of a body of hydrophilic material with an inner side surface having a non-continuous treatment of durable water repellent chemical.