Abstract: A silica aerogel-containing polyester masterbatch includes a polyethylene terephthalate resin, a silica aerogel powder, and a dispersing agent. The silica aerogel powder is dispersed in the polyethylene terephthalate resin, and is present in an amount ranging from 5 wt % to 30 wt % based on 100 wt % of the silica aerogel-containing polyester masterbatch. The dispersing agent is dispersed in the polyethylene terephthalate resin, is selected from the group consisting of a paraffin oil, a silane compound, a wax including C28-C32 straight chain monoacids, and combinations thereof, and is present in an amount ranging from 0.1 wt % to 4.0 wt % based on 100 wt % of the silica aerogel-containing polyester masterbatch. A method for preparing the silica aerogel-containing polyester masterbatch, and a silica aerogel-containing polyester fiber made from the same are also disclosed.

Abstract: The invention relates to a Lyocell fiber with recycled cellulose, which uses recycled cellulose pulp to dissolve in the spinning solution. The weight percentage of the recycled cellulose in the spinning solution is 30% to 55%. The Lyocell fibers of the invention also have hydrophilic, cooling, drape, antistatic, and biodegradable properties compared to the Lyocell fibers without recycled cellulose.

Abstract: A stapled melt spinning method for producing nonwoven fabrics with hygroscopic metastatic feature. Firstly, fuse bio-polyamide 6,10 into melt, extrude and spin it out spin heads of extruder into filaments, cool, draw and collect filaments into tow, then extend, cut and card the filaments into the staples, and spread the staples on a conveyer to form fibrous web. Next, blend and dissolve pulp by N-methylmorpholine N-oxide (NMMO) dissolving solvent, dehydrate it to form dope, and extrude and spin it out spin heads of extruder into filaments, then cool, draw and collect filaments into tow, and extend, cut and card filaments into staples, then overlay the staples over existing fibrous web to form a composite fibrous web of bio-polyamide 6,10 and cellulose filaments. Finally, coagulate, regenerate and convert fibrous composite of bio-polyamide 6,10 and natural cellulose into nonwoven fabric with hygroscopic metastatic feature by hydro-entangled needle punching, drying, winding-up processes.

Abstract: A spunbond method for producing nonwoven fabrics with hygroscopic metastatic feature. Firstly, fuse prepared bio-polyamide 6,10 into a melt via spunbond method, next extrude and spun and draw the melt to form filaments, then bond and lay the filaments on a conveyer to form a substrate fibrous web of bio-polyamide 6,10. Secondly, blend and dissolve prepared pulp by putting N-methylmorpholine N-oxide (NMMO) dissolving solvent, then dehydrate it to form dope, then extrude the dope out by an extruder with external compressed quenching air for converting it into cellulose filaments, then draw, bond and overlay the cellulose filaments to become uniform natural cellulose filaments on existing substrate fibrous web previously to form an overlaid fibrous web in the conveyer.

Abstract: A meltblown method for producing nonwoven fabrics with hygroscopic metastatic feature. Firstly, fuse prepared bio-polyamide 6,10 into a melt, then extrude, and blow the melt out spinnerets to form natural bio-polyamide 6,10 filaments laid onto a conveyer to form a substrate fibrous web. Secondly, blend and dissolve prepared pulp by putting N-methylmorpholine N-oxide (NMMO) dissolving solvent, and dehydrate it to form dope, then extrude and blow the dope out spinnerets to form natural cellulose filaments laid up over existing fibrous web of bio-polyamide 6,10 on the conveyer so that a fibrous composite of the bio-polyamide 6,10 and natural cellulose in overlaid lamination is formed thereon. Finally, coagulate and regenerate the fibrous composite of the bio-polyamide 6,10 and natural cellulose by means of ejecting mist aerosol of water, and convert it into nonwoven fabric with hygroscopic metastatic feature by orderly applying post treatments of hydro-entangled needle punching, drying, winding-up processes.

Abstract: A spunbond method for producing nonwoven fabrics with hygroscopic metastatic feature. Firstly, fuse prepared bio-polyamide 6,10 into a melt via spunbond method, next extrude and spun and draw the melt to form filaments, then bond and lay the filaments on a conveyer to form a substrate fibrous web of bio-polyamide 6,10. Secondly, blend and dissolve prepared pulp by putting N-methylmorpholine N-oxide (NMMO) dissolving solvent, then dehydrate it to form dope, then extrude the dope out by an extruder with external compressed quenching air for converting it into cellulose filaments, then draw, bond and overlay the cellulose filaments to become uniform natural cellulose filaments on existing substrate fibrous web previously to form an overlaid fibrous web in the conveyer.

Abstract: A stapled melt spinning method for producing nonwoven fabrics with hygroscopic metastatic feature. Firstly, fuse bio-polyamide 6,10 into melt, extrude and spin it out spin heads of extruder into filaments, cool, draw and collect filaments into tow, then extend, cut and card the filaments into the staples, and spread the staples on a conveyer to form fibrous web. Next, blend and dissolve pulp by N-methylmorpholine N-oxide (NMMO) dissolving solvent, dehydrate it to form dope, and extrude and spin it out spin heads of extruder into filaments, then cool, draw and collect filaments into tow, and extend, cut and card filaments into staples, then overlay the staples over existing fibrous web to form a composite fibrous web of bio-polyamide 6,10 and cellulose filaments. Finally, coagulate, regenerate and convert fibrous composite of bio-polyamide 6,10 and natural cellulose into nonwoven fabric with hygroscopic metastatic feature by hydro-entangled needle punching, drying, winding-up processes.

Abstract: A meltblown method for producing nonwoven fabrics with hygroscopic metastatic feature. Firstly, fuse prepared bio-polyamide 6,10 into a melt, then extrude, and blow the melt out spinnerets to form natural bio-polyamide 6,10 filaments laid onto a conveyer to form a substrate fibrous web. Secondly, blend and dissolve prepared pulp by putting N-methylmorpholine N-oxide (NMMO) dissolving solvent, and dehydrate it to form dope, then extrude and blow the dope out spinnerets to form natural cellulose filaments laid up over existing fibrous web of bio-polyamide 6,10 on the conveyer so that a fibrous composite of the bio-polyamide 6,10 and natural cellulose in overlaid lamination is formed thereon. Finally, coagulate and regenerate the fibrous composite of the bio-polyamide 6,10 and natural cellulose by means of ejecting mist aerosol of water, and convert it into nonwoven fabric with hygroscopic metastatic feature by orderly applying post treatments of hydro-entangled needle punching, drying, winding-up processes.

Abstract: A process for producing an antistatic yarn includes the steps of: (a) providing antistatic composite filaments having carbon black dispersed therein; (b) advancing the antistatic composite filaments to a first heating zone at a first advancing speed which ranges from 230 m/min to 330 m/min; (c) drawing the antistatic composite filaments from the first heating zone to a false twist zone at a second advancing speed such that a draw ratio of the second advancing speed to the first advancing speed ranges from 1.5 to 1.75, thereby obtaining false twisted filaments; and (d) heat-setting the false twisted filaments so as to obtain a permanent antistatic crimped yarn.

Abstract: This disclosure relates to a method of recovering and concentrating an aqueous N-methylmorpholine-N-oxide (NMMO) solution.

Abstract: A process for producing an antistatic yarn includes the steps of: (a) providing antistatic composite filaments having carbon black dispersed therein; (b) advancing the antistatic composite filaments to a first heating zone at a first advancing speed which ranges from 230 m/min to 330 m/min; (c) drawing the antistatic composite filaments from the first heating zone to a false twist zone at a second advancing speed such that a draw ratio of the second advancing speed to the first advancing speed ranges from 1.5 to 1.75, thereby obtaining false twisted filaments; and (d) heat-setting the false twisted filaments so as to obtain a permanent antistatic crimped yarn.

Abstract: This disclosure relates to a method of recovering and concentrating an aqueous N-methylmorpholine-N-oxide (NMMO) solution.