The invention provides migration resistant batting that includes a nonwoven web comprising a first surface parallel to a second surface, and a fiber mixture that includes: 35 to 65 wt % synthetic polymeric fibers having a denier of less than or equal to 1.0, wherein 50 to 100 wt % of said synthetic polymeric fibers are siliconized fibers; 10 to 30 wt % spiral-crimped synthetic polymeric fibers having a length of greater than or equal to 60 mm, wherein 50 to 100 wt % of said spiral-crimped synthetic polymeric fibers are siliconized fibers; 20 to 50 wt % elastomeric fibers having a denier between 2.0 and 7.0; and 5 to 25 wt % synthetic binder fibers having a denier of 1.5 to 4.0, said binder fibers have a bonding temperature lower than the softening temperature of the synthetic polymeric fibers, wherein said first and second surfaces comprise a cross-linked resin. Also provided are articles comprising the batting and methods of making the batting.

The embodiments of the present disclosure provide a composite yarn, a method and a device for processing the composite yarn, and protective equipment. The composite yarn comprises a core filament located at a core of the composite yarn; a first multifilament covering in parallel a peripheral surface of the core filament; a water-based adhesive distributed on a surface and inside of the first multifilament, wherein the water-based adhesive on the surface of the first multifilament forms a water-based adhesive layer; a second multifilament covering in parallel a peripheral surface of the water-based adhesive layer; and a single-clad structure layer or a double-clad structure layer covering an outer side of the second multifilament, wherein both the first multifilament and the second multifilament are organic multifilaments or inorganic multifilaments.

To perform a flame-resistant treatment on a precursor fiber strand by sending hot air to a heat treatment chamber (2) through a hot air blowing nozzle (4) in a direction parallel to a running direction of a precursor fiber strand (10). The hot air blowing from the hot air blowing nozzle (4) passes through a porous plate and a rectifying member that satisfy the following conditions (1) to (4), wherein the conditions are set as follows: (1) A/B≧4.0; (2) 0.15≦α≦0.35; (3) 0≦B−d≦20; and (4) 80% or more of an area of one opening of the porous plate when causing facing surfaces of the porous plate and the rectifying member to overlap each other is included in one opening of the rectifying member, A indicating a hot air passage distance (mm) of the rectifying member, B indicating a horizontal maximum distance (mm) of one opening of the rectifying member, α indicating a rate of hole area of the porous plate, and d indicating an equivalent diameter (mm) of the porous plate. Accordingly, it is possible to provide a parallel stream type flame-resistant heat treatment furnace having exhibiting the uniform heat transfer performance throughout the inside of the heat treatment chamber by preventing the blockage of the nozzle caused by a silicone compound generated inside the heat treatment chamber even in the hot air blowing nozzle having a simple structure.

A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties is described. The method providing: applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE on the surface of the fibers of the PTFE enhanced POY.

A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties is described. The method providing: applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE on the surface of the fibers of the PTFE enhanced POY.

A carbon fiber production method includes a carbon fiber production step including an oxidation step and a carbonization step; and an exhaust gas processing step including a heat exchange step; an external air mixing step; and a mixed external air supplying step in which the mixed external air is supplied to at least one step that uses heated gas in the steps in the carbon fiber production step; and among the exhaust gases, a high heating value exhaust gas having a heating value of 250 kcal/Nm.sup.3 or higher is supplied to an inlet side of an exhaust gas combustion apparatus and a low heating value exhaust gas having a heating value lower than 150 kcal/Nm.sup.3 is supplied to an outlet side of the exhaust gas combustion apparatus, respectively.

A method for continuously processing a thread-like material with a plurality of method steps and a device for carrying out the method, wherein a feed mechanism (10), a treating (35) and depositing device (36), a transporting device (14), a thermosetting mechanism (32) and a length compensating mechanism (37) are arranged in a common closed system (5) and the closed system (5) differs from the surroundings in its interior by at least one first physical property and sub-systems (31, 32, 33, 35, 36, 37) that are shielded from one another are present within the system (5) for the various method steps, to which sub-systems supply mechanisms (25, 26, 27) are connected, which produce at least partially different temperatures in the sub-systems (31, 32, 33, 35, 36, 37) as the second physical property.

A method for continuously processing a thread-like material with a plurality of method steps and a device for carrying out the method, wherein a feed mechanism (10), a treating (35) and depositing device (36), a transporting device (14), a thermosetting mechanism (32) and a length compensating mechanism (37) are arranged in a common closed system (5) and the closed system (5) differs from the surroundings in its interior by at least one first physical property and sub-systems (31, 32, 33, 35, 36, 37) that are shielded from one another are present within the system (5) for the various method steps, to which sub-systems supply mechanisms (25, 26, 27) are connected, which produce at least partially different temperatures in the sub-systems (31, 32, 33, 35, 36, 37) as the second physical property.

A method for forming an ultra-high temperature (UHT) composite structure includes dispensing a polymeric precursor with a spinneret biased at a first DC voltage; forming a plurality of nanofibers from the polymeric precursor; receiving the plurality of nanofibers with a collector biased at a second DC voltage different than the first DC voltage; and changing a direction of movement of the plurality of nanofibers between the spinneret and the collector with a plurality of magnets having a magnetic field by adjusting the magnetic field.

The invention relates to a method for thermally stabilizing melt-spun PAN precursors. For this purpose, the invention provides a continuous method for producing a thermally stabilized multifilament thread made of a meltable copolymer of polyacrylonitrile (PAN), wherein a pre-stabilized multifilament thread is thermally stabilized and in the process at least temporarily stretched. The invention additionally relates to a thermally stabilized multifilament thread which can be obtained according to a corresponding method and to a carbon fiber which is made of the correspondingly thermally stabilized multifilament thread.