251 results about "Flax fiber" patented technology

The invention relates to the technical field of textiles, in particular to a wear-resistant antibacterial flax blended yarn and a preparation process thereof. The method specifically comprises the following steps: S1, after performing ultraviolet irradiation on cotton fibers, putting the cotton fibers into a wear-resistant antibacterial solution, and performing dipping and drying to obtain wear-resistant fibers; s2: (1) modifying chitosan by using 6-maleimidohexanoic acid, so as to obtain modified chitosan; (2) sequentially reacting polyethylene glycol adipate with isophorone diisocyanate, modified chitosan and sodium 2-mercaptoethanesulfonate, and finally emulsifying to obtain a fiber treating agent; s3, (1) performing opening mixing, cotton carding, drawing, roving, spinning and spooling on the linen fibers and the wear-resistant fibers in sequence to obtain a linen blended yarn crude product; and (2) soaking the flax blended yarn crude product into the fiber treating agent, padding and drying to obtain the wear-resistant antibacterial flax blended yarn.

The invention discloses an anti-wrinkle wear-resistant flax blended yarn and a processing technology thereof, and relates to the technical field of textiles. The prepared flax blended yarn comprises natural fibers, modified polylactic acid fibers and ultra-high molecular weight polyethylene fibers. Wherein the natural fibers are obtained by performing degumming pretreatment on linen fibers and bamboo fibers and then mixing the linen fibers and the bamboo fibers with cotton fibers; graphene oxide is deposited on the surface of the fiber through dopamine polymerization, so that the wear resistance of the yarn is improved; the modified polylactic acid fibers are obtained through melt spinning of polylactic acid, poly (adipic acid) / butylene terephthalate and modified chitin nanofibers, the compatibility of the chitin nanofibers and the polylactic acid is improved through polyethylene glycol, and the polylactic acid fibers are enhanced; coarse yarns are obtained through combing, drawing, roving and spinning, the coarse yarns are soaked in a finishing agent, and finally the finished blended yarns are obtained and have good wear resistance and wrinkle resistance.

The utility model relates to the field of fabrics, in particular to a moisture-absorbing and sweat-releasing blended fabric. The moisture-absorbing and sweat-releasing blended fabric comprises a moisture-absorbing layer and a breathable layer, wherein the moisture absorption layer is formed by weaving a plurality of first yarns and a plurality of second yarns; the first yarns comprise polyester fibers and multi-strand yarns wrapping the polyester fibers; the multi-strand yarn is formed by twisting tencel fibers and silver ion antibacterial fibers; the breathable layer is formed by weaving a plurality of third yarns, and the third yarns are formed by twisting linen fibers and cashmere fibers; a plurality of ventilation holes are formed in the ventilation layer; the first yarns have high elasticity, comfort, hygroscopicity and antibacterial activity, and the second yarns also endow the moisture absorption layer with excellent moisture conductivity; the breathable layer formed by weaving the third yarns is provided with a plurality of breathable holes, so that the moisture absorption layer after moisture absorption can be quickly dried, and the blended fabric has the excellent effects of moisture absorption, sweat releasing and quick drying.

The utility model provides a flax fiber efficient degumming device, including a bottom plate, the top left and right sides of the bottom plate are fixedly connected with electric guide rails, the tops of the two electric guide rails are slidably connected with a moving frame, the bottom middle end of the moving frame is fixedly connected with a driving assembly, the bottom of the driving assembly is fixedly connected with a lifting frame, the bottoms of the left and right sides of the lifting frame are fixedly connected with motor 1, the output ends of the two motors are fixedly connected with a rotating shaft, the adjacent sides of the two rotating shafts are fixedly connected with a filter box, and the top rear side of the bottom plate is fixedly connected with a degumming box. In the utility model, starting motor 1 drives the filter box to tilt, so that the degummed flax fibers are dumped on the top of the conveyor belt, so that the staff does not need to manually take out the degummed flax fibers, thereby improving the working efficiency of the device.

According to the technical scheme, the high-elasticity breathable chemical fiber fabric is characterized in that a plurality of grooves are formed in the end face, close to an outer layer, of an inner layer, elastic strips are arranged in the grooves, a plurality of supporting strips are arranged on the end face, close to the inner layer, of the outer layer, and the supporting strips are fixedly connected with the inner layer and the elastic strips; ventilation spaces are formed between the adjacent supporting strips and the outer layer and between the inner layer and the elastic strips, and a plurality of first ventilation holes and a plurality of second ventilation holes which are communicated with the ventilation spaces are formed in the inner layer and the outer layer in a penetrating mode respectively. The inner layer made of the cotton fibers and the spandex profiled fibers can absorb sweat generated by skin in time, the outer layer made of the linen fibers and the spandex profiled fibers can absorb moisture in the inner layer and quickly disperse the moisture, and the breathable spaces, the first breathable holes and the second breathable holes which are communicated with one another improve the breathability of the fabric. The large resilience force of the elastic strips can drive the inner layer and the outer layer to rapidly rebound after being stretched, and the shape maintaining performance of the fabric is improved.

The invention relates to a preparation method of antibacterial yarn. The yarn produced by the invention is the yarn containing the linen fiber, and when the linen fiber is subjected to alkali treatment, the treatment waste liquid is filtered to obtain lignin mixed filtrate; adding medium-chain diamine and formaldehyde into the lignin mixed filtrate, boiling and keeping the temperature for a period of time to obtain an amino lignin mixed solution, adding enough monobasic saturated alcohol until the reaction is complete, filtering, collecting precipitate, and drying to obtain a medium-chain amino lignin antibacterial agent; and immersing the spun yarn into an antibacterial solution containing medium-chain amino lignin, and airing or drying to obtain the antibacterial yarn. The waste liquid generated in the alkali treatment process of the linen fiber yarn is recycled, and the chain amino lignin antibacterial agent with the antibacterial effect is extracted from the waste liquid and is applied to antibacterial treatment of the yarn again, so that the linen fiber yarn has a certain antibacterial effect.

The invention relates to the technical field of microfiber flannelette, in particular to flame-retardant antibacterial scratch-resistant water-based resin microfiber flannelette and a preparation method thereof.The flame-retardant antibacterial scratch-resistant water-based resin microfiber flannelette comprises figured island superfine fiber non-woven fabric, reinforcing layers are arranged on the upper surface and the lower surface of the figured island superfine fiber non-woven fabric through polyurethane glue in an adhesive mode, and resin body layers are arranged on the outer surfaces of the reinforcing layers; the reinforcing layer is formed by warp knitting linen fiber yarns and aramid fiber yarns according to the weight ratio of 1: 1; the thickness of the figured island superfine fiber non-woven fabric is 0.4 to 0.5 mm; the thickness of the reinforcing layer ranges from 0.3 mm to 0.4 mm. And the thickness of the resin body layer is 0.2 to 0.3 mm. According to the flame-retardant antibacterial scratch-resistant water-based resin microfiber flannelette disclosed by the invention, the resin body layer, the reinforcing layer and the figured island superfine fiber non-woven fabric are symmetrically arranged up and down, so that the strength stability of the microfiber flannelette is optimized.

The invention relates to the field of materials, and particularly discloses a mildew-proof and antistatic automobile trunk inner lining plate material and a preparation method thereof.The mildew-proof and antistatic automobile trunk inner lining plate material is prepared by adopting flax fibers, zirconia ceramic fibers and carbon fibers to be compounded to serve as a reinforcing framework, conducting vacuum drying and activation on the reinforcing framework, pretreating graphene oxide and dispersing the graphene oxide in a fiber network; according to the present invention, the mold inhibitor and the antibacterial agent are added to form the uniform and lasting release source of the mold inhibitor and the antibacterial agent, and the composite binder and the composite auxiliary agent are adopted, and the graded pressurization cold pressing molding process is adopted so as to compact the fiber network, effectively release the internal stress, and avoid the structural damage caused by the single high pressure so as to obtain the low-porosity and high-strength compact structure; the inner supporting plate material has efficient and broad-spectrum antibacterial performance and rapid and lasting static dissipation capacity, achieves the best balance among mechanical strength, durability, mildew-proof and antistatic performance and environmental protection performance, meets the application requirements of inner lining plates of automobile trunks, and has high practical application value.

The invention discloses an anti-cracking calcium silicate board and a preparation method thereof, and relates to the technical field of light building materials. The method comprises the following steps: carrying out ball milling, acid pickling and silane coupling agent surface modification on quartz sand to obtain alkylated quartz sand; and carrying out dry mixing on the mixture, metakaolin, silica fume and cement. The linen fiber is subjected to alkali treatment and hydroxyethyl acrylate graft modification, and the PVA fiber is subjected to silane coupling agent and nano silicon dioxide coating treatment. Dispersing graphene oxide, carboxylated styrene-butadiene emulsion and other assistants in water, adding the dry mixture, uniformly stirring, and then adding the two modified fibers to prepare mixed slurry; and finally, carrying out pressure forming, pre-curing, high-pressure steam curing and drying to obtain a finished product. Through substrate silanization, fiber grafting / nanocrystalline seed modification and synergistic introduction of graphene oxide and elastic emulsion, the interface bonding strength and toughness are remarkably enhanced, crack initiation and propagation are effectively inhibited, and the plate has excellent cracking resistance.

The utility model discloses a tencel vortex spinning yarn which comprises a core yarn, a first wrapping fiber layer, a first wrapping yarn layer and a second wrapping yarn layer. The core yarn comprises wool PVA blended yarn, the first wrapping fiber layer is made of hollow polyester fibers, and the first wrapping yarn layer comprises linen fiber yarn and hot melting filaments which are doubled and twisted. And the second wrapped yarn layer comprises tencel blended yarns. According to the tencel vortex spinning yarn, the PVA fibers are adopted in the core yarn, so that PVA can be dissolved in water after a woven fabric is treated by hot water, a large number of gaps are left, and the tencel vortex spinning yarn has a good warm keeping effect. In addition, the used flax fiber yarn has good rigidity, and the hot melting filaments can bond the flax fibers with adjacent fibers, so that the deformation of the cross section of the vortex spinning yarn can be reduced.

The invention belongs to the field of textile, and relates to a linen fiber refined processing technology, which comprises the following steps: beating linen into linen, and carrying out impurity removal treatment on the linen by an impurity removal machine to remove impurities doped in the linen fiber and too short or broken fibers; after the quality of the flax raw material is improved, the flax is beaten into flax, the flax is preheated through a steam channel and then fed into a degumming tank to be soaked in a biological enzyme solution according to the bath ratio of 1: 15 for degumming treatment for 30-60 min, after degumming, the flax is cleaned through clean water added with a softener, and the cleaned flax fiber is subjected to dewatering, oiling and drying treatment; after dust removal treatment and anesthesia, opening treatment and secondary dust removal are carried out on the linen fibers through the opener, so that the use of acid and alkali reagents is completely avoided, the reaction time is shortened, the production cost and the environmental pollution degree are reduced, the environmental pollution problem caused by strong acid and strong alkali is avoided, and meanwhile, the excellent mechanical property is achieved.

Described herein is a growing medium designed to physical specifications for the specific plant(s) and / or crop(s) types(s), so as to provide air space for the plants which in turn allows for root development as well as water retention and release in a way beneficial to plant growth and development. These parameters are obtained by using compostable, renewable waste stream products and combining ingredients, managing and mixing particle sizes, using filter style wrapping on the blocks, as well as surfactants and binding agents, either alone or in combinations. In some embodiments, the growing medium comprises material derived from one or more of pulses, hemp, oat and flax. For example, the material may be one or more of pulse straw and hulls, for example, pea straw and hulls; hemp hurd and fibers; oat hulls; and flax fiber.

The utility model relates to the technical field of flax processing, in particular to a flax fiber degumming device which comprises a first box body, a first grid plate is arranged in the first box body, a plurality of stop levers are symmetrically fixed on the first grid plate, second connecting ropes are fixed on the plurality of stop levers, a shielding net covers the plurality of stop levers, and the second connecting ropes are fixed on the shielding net. A plurality of first connecting ropes are fixed to the shielding net, and two adjusting mechanisms are symmetrically fixed to the first grid plate and the first box body jointly. When the flax raw material degumming device is used, a flax raw material can float up and down on the first grid plate, so that a biological enzyme solution is in full contact with the flax raw material, the biological enzyme solution can be stirred, the flax raw material can be in more contact with enzyme in the biological enzyme solution, and the degumming effect and the degumming speed of the flax raw material are further ensured.

The invention relates to the technical field of fiber processing dust removal devices, in particular to a dust removal device for linen fiber workshop processing. According to the technical scheme, the dust removal device comprises a negative pressure fan and an exhaust pipe arranged at the output end of the negative pressure fan, the input end of the negative pressure fan is connected with a dust suction hood through a filter hood, the dust removal device further comprises a filter plate arranged on the inner wall of the filter hood, and the filter plate comprises a dust removal part and a blocking part; the side wall of the rotating shaft is connected with a brushing mechanism located below the filtering plate and used for cleaning fibers of the dust discharging part. The dust removal device is ingenious in structural design, sucked fibers are intercepted in the dust removal process, and damage of the fibers to the negative pressure fan is avoided; and the fibers intercepted on the dust discharging part can be automatically cleaned, the situation that the dust discharging part is blocked to affect the dust removal effect is avoided, and the fibers on the bristles can be cleaned into a collecting box through an intercepting rod. The whole device improves the dust removal efficiency, reduces the damage to the negative pressure fan, and prolongs the service life of the dust removal device.

The invention discloses a high-strength polytetrafluoroethylene dispersion resin and a preparation method thereof, and belongs to the technical field of chemical engineering, and the preparation method comprises the following steps: preparing a linen fiber / nano silicon dioxide microsphere filler, adding the linen fiber / nano silicon dioxide microsphere filler into a polytetrafluoroethylene dispersion stock solution to form slurry, adding a modifier into the slurry to form composite slurry, putting the composite slurry into an ultraviolet ozone reaction cabin to carry out ultraviolet / ozone synergistic modification treatment, obtaining modified composite slurry after the treatment is completed, and carrying out molding treatment on the modified composite slurry to obtain the high-strength polytetrafluoroethylene dispersion resin. Through the mode, the linen fiber / nano silicon dioxide microsphere filler and ultraviolet ozone modification treatment synergistically enhance the strength of the dispersion resin.

An aerosol-generating article (10)(100)(1000) comprises: an aerosol-generating substrate (12)(112)(1004); a downstream element (42)(150)(1008) provided downstream of the aerosol-generating substrate (12)(112)(1004) and in axial alignment with the aerosol-generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibres selected from one or more of viscose fibres, modal fibres, Lyocell fibres and viscose rayon fibres; or a plurality of natural fibres selected from one or more of flax fibres, hemp fibres, jute fibres, kenaf fibres, ramie fibres, abaca fibres, phormium fibres, sisal fibres, coir fibres, cotton fibres, and kapok fibres. The cellulosic fibrous material further comprises an additive coating applied to the plurality of regenerated cellulose or natural fibres, the additive coating comprising at least 5 percent by weight of exogenous lignin on a dry weight basis.

The utility model discloses an antibacterial flax blended yarn which comprises flax fibers, first blended fibers are wound on one sides of the flax fibers, second blended fibers are wound on one sides of the first blended fibers, and third blended fibers are wound on one sides of the second blended fibers. According to the linen blended yarn, the second blended fiber and the third blended fiber are added to the linen blended yarn, the second blended fiber is the cotton fiber, the cotton fiber can improve the hygroscopicity and air permeability of the yarn and reduce the dryness and vulnerability of the yarn, and therefore the anti-fracture performance is improved, and the third blended fiber is the polyester fiber. According to the flax blended yarn, the polyester fibers have high elongation at break and evenness, the spinnability and breaking strength of the blended yarn can be improved, meanwhile, the whole flax blended yarn is formed by weaving various fibers in a crossed mode to be in a twisted shape, force borne by the yarn is evenly dispersed, the possibility of fiber breakage is reduced, and therefore the purpose that the flax blended yarn can be prevented from being broken is achieved.

The utility model discloses an anti-static polyester cloth bag which comprises a polyester cloth bag body, a bag opening ring is fixedly connected to the inner side of the polyester cloth bag body, a supporting assembly is fixedly connected to the bottom of the bag opening ring, a static sleeve is fixedly connected to the bottom of the polyester cloth bag body, and a power connection head is fixedly connected to the outer side of the static sleeve. A power line is electrically connected to the output end of the power connection head, a static electricity eliminator is fixedly connected to the interior of the static electricity sleeve, the polyester cloth bag body comprises a base cloth layer, a corrosion-resistant layer, a first anti-static layer, a linen fiber layer and a second anti-static layer, the corrosion-resistant layer is fixedly connected to the bottom of the base cloth layer, the first anti-static layer is fixedly connected to the bottom of the corrosion-resistant layer, and the linen fiber layer is fixedly connected to the second anti-static layer. According to the anti-static polyester cloth bag, through the arrangement of the static sleeve, the power connection head, the power line and the static eliminator, static electricity generated by friction of gas, dust, impurities and the like in the polyester cloth bag body is avoided, the anti-static polyester cloth bag has the effect of eliminating static electricity, and therefore the anti-static effect of the polyester cloth bag is improved.

The linen fiber degumming device comprises a processing box, inlets and outlets, a cover plate, a grinding roller, a motor and a liquid outlet, the liquid outlet is fixedly installed at the bottom of one side of the processing box, the cover plate is movably installed on the other side of the top of the processing box, and the inlets and outlets are formed in the surface and the back face of the processing box. A grinding roller is movably mounted in the processing box, a motor is movably connected to the outer wall of the grinding roller, a movable rod is movably mounted in the processing box, and a connecting rod clamped in the interior can be pushed out from the interior of a movable barrel through a designed quick release mechanism and pressing towards the interior of the movable barrel by utilizing a pushing rod; and therefore, the limiting part can be quickly separated from the interior of the guide groove, and the limiting part can be conveniently and quickly canceled to be taken down.

The present invention discloses a preparation process for a tencel linen blended fabric, which comprises the following technological steps carried out in sequence: selecting tencel fibers and linen fibers; blending the tencel fibers and linen fibers into a tencel linen blended yarn by using the siro compact spinning method; making the tencel linen blended fabric after the tencel linen blended yarn goes through the processes of warping, sizing, drawing-in, weaving and finishing in sequence; and using a sizing machine without sizing skin on the yarn in the sizing process. The present invention also discloses a sizing machine for preparing the tencel linen blended fabric, which comprises a creel, a sizing box, a drying chamber and a headstock arranged in sequence along the yarn feeding direction; all the sizing rollers in the sizing box are made of the same material; a cold and heat exchange circulation pipeline is arranged in the last two sizing rollers along the yarn feeding direction in the sizing box, and a medium channel communicated with the cold and heat exchange circulation pipeline is further arranged on the sizing machine. The present invention can effectively avoid sizing skin on the surface of the yarn, can realize uniform distribution of the yarn tension between drying cylinders, and improves the quality of the yarn.

The utility model relates to the technical field of carding devices, in particular to a linen fiber carding device which comprises an external shell, a driving power source is installed in the external shell, the outer side of the driving power source is connected with a main rotating shaft, meanwhile, a follow-up shaft is installed on the side of the main rotating shaft, and a transmission structure is installed at the lower end of the main rotating shaft. A peripheral frame plate is mounted on the outer side of the transmission structure, meanwhile, the transmission structure is connected to the internal rotating shaft, a placement port is formed in the right side of the external shell, a groove opening is formed in the inner surface of the placement port, a moving rod is mounted at the upper end of the groove opening, and a straightening block is mounted on the outer surface of the moving rod; the linen fiber carding device has the advantages that the linen fibers are carded through the multi-process carding rollers, the independent straightening block is further arranged in front of the carding device for the linen fibers, the linen fibers are subjected to first treatment through installation of the straightening block, and the sorting rollers are further installed in the carding device to convey the inadequately carded parts to the beginning of the carding device again.

The application relates to the technical field of digital printing, and discloses a plant fiber digital printing knitted jean fabric and a preparation process thereof. A three-layer sheath-core structure vortex spinning core-spun yarn is prepared, the core layer is a heat-shrinkable FDY polyamide filament, the middle layer is a blend of a profiled section lyocell and regenerated polyamide short fiber, and the sheath layer is a blend of bamboo and flax fibers; the three-layer sheath-core structure vortex spinning core-spun yarn is woven into a knitted gray fabric, and after pretreatment, digital printing pretreatment, jean style digital printing, drying, fixation and washing, the knitted gray fabric is subjected to heat treatment and post-finishing to obtain a finished product. The fabric realizes gradient penetration of printing ink through the three-layer sheath-core structure of the yarn, improves visual level, enhances the compactness of the fabric through heat shrinkage of the core layer, has the advantages of knitted comfort and traditional jean style, is green and environment-friendly, and solves the problems of planarization and insufficient support of the existing digital printing knitted jean.

The invention belongs to the technical field of fabrics, and discloses a novel flax knitted fabric, which prolongs the existence time of an anti-wrinkle coating through the dual effects of mechanical occlusion of nano-particles and flax coils and chemical bonding of plasma-treated flax fibers and titanium hydroxyl, so that the anti-wrinkle performance of the fabric is improved, and the anti-wrinkle performance of the fabric is improved. The service time of the linen fabric is prolonged, the surface activity and hydrophilicity of the fibers are remarkably improved, the efficiency is improved for subsequent dry-method coating spraying, the process is simplified, damage of high temperature to the fiber structure is avoided, and the original texture of the fabric is kept.

The utility model discloses a linen fiber pickling device which comprises a pickling tank, a rolling wheel is rotationally installed in the pickling tank, a partition plate is fixedly installed in the pickling tank, a recycling cavity is formed in the pickling tank, a second extrusion roller is driven to move downwards through arrangement of a downward pressing assembly, and under cooperation with a first extrusion roller, the second extrusion roller is driven to move downwards; the linen fibers are extruded, redundant pickling solution in the linen fibers is extruded out and falls into the recovery cavity, subsequent drying treatment of the linen fibers is facilitated, the pickling solution in the recovery cavity enters the connecting pipe through the arrangement of the recovery assembly and is input into the pickling tank again, recycling of the pickling solution is completed, waste of the pickling solution is reduced, and the environment is protected. Through the arrangement of the pushing assembly, the threaded block moves, then the pushing plate is driven to move slowly, the pushing plate pushes impurities deposited at the bottom into the sewage draining exit and falls into the filter frame, the impurities in the pickling tank are reduced, and pickling of linen fibers next time is facilitated.

The invention relates to the technical field of materials, and discloses a polypropylene material with high strength and strong anti-pressure ability and a preparation method, the polypropylene material is prepared by taking polypropylene as a base material and a linen fiber modified additive and the like as auxiliary materials through mixing and extrusion processes, the linen fiber modified additive is prepared by modifying macromolecular substances with norbornane-erythritol alternate connection structures on the surfaces of linen fibers, and the macromolecular substances can react with anhydride groups of maleic anhydride grafted polypropylene in the subsequent melt extrusion process, so that interlocking can be formed between the linen fibers and a polypropylene matrix; according to the present invention, the macromolecular substance structure contains the high bond energy silicon-oxygen bond and the rigid ring structure, such that the stability of the polypropylene can be improved so as to further enhance the impact resistance and other mechanical properties of the polypropylene.

The invention provides an efficient flax fiber degumming device and method, and relates to the technical field of flax fiber textile production, the efficient flax fiber degumming device comprises a degumming box, a conveying assembly, a compression roller assembly and a reciprocating rolling driving mechanism; a sliding table is arranged in the degumming box, and a reciprocating sliding plate is arranged on the sliding table; the conveying assembly comprises a conveying belt, a driving roller, a driven roller and a driving motor. The device has the beneficial effects that the pressing roller assembly of the device can press the conveying belt downwards to apply pressure to linen fibers on the reciprocating sliding plate, and the driving roller can drive the reciprocating sliding plate to slide in a reciprocating manner through the reciprocating rolling driving mechanism, so that the linen fibers can be rolled through the synergistic effect of the conveying belt and the reciprocating sliding plate; the linen fibers are subjected to reciprocating rolling force perpendicular to the movement direction in the conveying process, dynamic kneading and rolling are achieved, the colloid stripping efficiency is remarkably improved, degumming is more uniform, the linen fibers can be elastically pressed downwards through the pressing roller assembly, and fiber breakage caused by rigid extrusion is avoided.

The fireproof and flame-retardant curtain cloth comprises a cloth base layer, a tear-resistant layer is arranged on one side of the cloth base layer, a flame-retardant layer is arranged on one side of the tear-resistant layer, a wear-resistant layer is arranged on one side of the flame-retardant layer, a heat insulation layer is arranged on the other side of the cloth base layer, a light shielding layer is arranged on one side of the heat insulation layer, and an antibacterial layer is arranged on one side of the light shielding layer. A waterproof breathable layer is arranged on one side of the antibacterial layer. The tensile strength of the fabric is improved through the tear-resistant layer formed by the transverse memory metal wires and the longitudinal memory metal wires which are distributed on one side of the fabric base layer in a cross-shaped interweaving mode, so that the fabric is prevented from being torn, the flame-retardant effect of the fabric is improved through the PU high-transmittance double-group flame-retardant film, the organic silicone oil layer and the flame-retardant polyurethane layer in the flame-retardant layer, and the flame-retardant performance is good. The wear-resistant layer formed by twisting the carbon fibers, the polyester fibers and the linen fibers improves the wear resistance of the cloth and enhances the anti-pulling performance of the cloth, and the heat insulation layer improves the heat insulation performance of the curtain cloth.

The invention belongs to the technical field of polylactic acid composite materials, and particularly relates to a gutta-percha-based composite material and a preparation method thereof. The gutta-percha-based composite material is prepared from the following raw materials in parts by weight: 70 to 80 parts of polylactic acid, 10 to 20 parts of gutta-percha, 3 to 8 parts of modified fiber, 1 to 4 parts of reinforcing filler, 0.4 to 0.8 part of antioxidant and 1 to 3 parts of cross-linking agent, a preparation process of the modified fiber comprises the following steps: (1) adding pretreated linen fiber into an ethanol solution containing tetrabutyl titanate, then adding a silane coupling agent for heating reaction, and after the reaction is completed, cleaning and drying to obtain primarily modified linen fiber; and (2) adding the linen fiber modified for the first time into N, N-dimethylformamide, then adding hydroxyethyl acrylate and an initiator, carrying out a heating reaction, and after the reaction is completed, filtering, washing and drying to obtain the modified fiber. The composite material has excellent mechanical properties and thermal stability.

The aerosol generating article (10)(100)(1000) comprises an aerosol generating substrate (12)(112)(1004) and a downstream element (42)(150)(1008) provided downstream of the aerosol generating substrate (12)(112)(1004) and axially aligned with the aerosol generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibers selected from one or more of viscose fibers, modal fibers, lyocell fibers, and viscose rayon fibers, or a plurality of natural fibers selected from one or more of flax fibers, hemp fibers, jute fibers, kenaf fibers, ramie fibers, abaca fibers, phormium fibers, sisal fibers, coir fibers, cotton fibers, and kapok fibers. The cellulosic fibrous material further comprises an additive coating applied to multiple regenerated cellulose or natural fibers, the additive coating containing at least 5% by weight of exogenous lignin on a dry weight basis.