The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 m or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 m or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m.sup.2, and also a liquid filter are obtained.

The invention provides a melt-blown non-woven filter material, which is prepared by the following method: provide a polylactic acid raw material; dissolve the polylactic acid raw material into a DMF solvent; the polylactic acid electrospinning layer is prepared by electrospinning method using polylactic acid spinning solution as raw material; provide polylactic acid raw material again and provide polyphenylene sulfide raw material; and perform surface treatment. Polylactic acid raw material, polyphenylene sulfide raw material, nano-titania powder are mixed well with the processing assistant to obtain a mixture; the mixture is extruded into modified polylactic acid particles; then a modified polylactic acid melt-blown fiber layer is formed on the polylactic acid electrospinning layer by using the melt-blown method. The invention innovatively implements loading nano-titania particles into the synthetic fiber, which makes the fiber material presented in this invention not only have filtering effects, but also have photocatalytic ability.

A thermally conductive, electrical insulating nonwoven material is described that comprises 20 wt. %-50 wt. % organic components, wherein the organic components comprise wherein the organic components comprise organic drawn fibers, organic bi-component binder fibers, and a polymer latex binder comprising at least one of an acrylic latex, an acrylic copolymer latex, a nitrile latex, and a styrene latex; and 50 wt. %-80 wt. % inorganic components wherein the inorganic components comprise a blend of thermally conductive fillers and clay. The organic bi-component binder fibers have a polymeric core and a sheath layer surrounding the polymeric core wherein the sheath layer has a lower melting point than the core.

A polyphenylene sulfide short fiber has a monofilament fineness of 0.70 to 0.95 dtex, a strength of 4.5 to 5.5 cN/dtex, a fiber length of 20 to 100 mm, and a melt flow rate (MFR) value of 200 to 295 g/10 min. The polyphenylene sulfide short fiber enables improvements to be made in the dust collection performance and mechanical strength without impairing the fiber productivity or felt productivity.

A flame resistant woven fabric has a thickness of 0.08 mm or more in accordance with the method of JIS L 1096-A (2010) and including warps and wefts, the warp and the weft each comprising: a non-melting fiber A having a high-temperature shrinkage rate of 3% or less; and a thermoplastic fiber B having an LOI value of 25 or more in accordance with JIS K 7201-2 (2007) and having a melting point lower than the ignition temperature of the non-melting fiber A; wherein the warp and the weft each have a fracture elongation of 5% or more; and wherein, in the projection area of the weave repeat of the flame resistant woven fabric, the area ratio of the non-melting fiber A is 10% or more and the area ratio of the thermoplastic fiber B is 5% or more.

A woven sleeve and method of construction thereof is provided. The sleeve has a wall with opposite edges extending lengthwise along a longitudinal axis between opposite ends, wherein the opposite edges are wrappable into overlapping relation with one another to contain the wires within a cavity of the sleeve. The wall is constructed from warp yarns extending along the longitudinal axis and fill yarns extending transversely to the warp yarns. The fill yarns are provided as transparent or substantially transparent monofilaments and the warp yarns are provided as yarns including a multifilament yarn and at least one conductive wire, wherein the conductive wire wrapped about the multifilament yarn.

Dimensionally stable fire-resistant fibrous structures including fire-resistant melt-blown nonwoven fibers, and processes and apparatus for producing such dimensionally stable, fire-resistant nonwoven fibrous structures. The melt-blown fibers include poly(phenylene sulfide) in an amount sufficient for the nonwoven fibrous structures to pass one or more fire-resistance test selected from UL 94 V0, FAR 25.853 (a), and FAR 25.856 (a), without any halogenated flame-retardant additive in the nonwoven fibrous structure. The melt-blown fibers are subjected to a controlled in-flight heat treatment at a temperature below a melting temperature of the poly(phenylene sulfide) immediately upon exiting from at least one orifice of a melt-blowing die, in order to impart dimensional stability to the fibers. The nonwoven fibrous structures including the in-flight heat treated melt-blown fibers exhibit a Shrinkage less than a Shrinkage measured on an identically-prepared structure including only fibers not subjected to the controlled in-flight heat treatment operation, and generally less than 15%.

A protective textile sleeve for providing protection to an elongate member contained therein; a method of construction thereof, and a method of bonding at least a portion of the sleeve to at least one of itself and an elongate member extending through a cavity thereof is provided. The sleeve has a wall of interlaced yarn, with the wall having an outermost surface and an innermost surface. The innermost surface is configured to bound a cavity extending between opposite open ends. The sleeve further includes an adhesive coating bonded to at least a portion of at least one of the outermost and innermost surfaces. The adhesive coating has a first, dried non-adhesive state and a second, wetted adhesive state, wherein the second adhesive state is activated via application of a water-based liquid thereto.

The invention provides a melt-blown non-woven filter material, which is prepared by the following method: provide a polylactic acid raw material; dissolve the polylactic acid raw material into a DMF solvent; the polylactic acid electrospinning layer is prepared by electrospinning method using polylactic acid spinning solution as raw material; provide polylactic acid raw material again and provide polyphenylene sulfide raw material; and perform surface treatment. Polylactic acid raw material, polyphenylene sulfide raw material, nano-titania powder are mixed well with the processing assistant to obtain a mixture: the mixture is extruded into modified polylactic acid particles; then a modified polylactic acid melt-blown fiber layer is formed on the polylactic acid electrospinning layer by using the melt-blown method. The invention innovatively implements loading, nano-titania particles into the synthetic fiber, which makes the fiber material presented in this invention not only have filtering effects, but also have photocatalytic ability.

A method for producing a nonwoven fabric is provided. The method includes spinning a molten aromatic polysulfone resin from a nozzle and extending it with a high temperature fluid ejected at high speed, thereby obtaining the aromatic polysulfone resin in a fibrous form, and collecting the aromatic polysulfone resin obtained in a fibrous form on a moving collecting member. The aromatic polysulfone resin has a melt mass flow rate of 130 g/10 min or more under conditions of a test temperature of 400 C. and a nominal load of 2.16 kg, which is determined based on ASTM D 1238. A distance from the nozzle to the collecting member is set to 30 mm or less.