949 results about "Single filament" patented technology

The invention provides a warp-knitted interval sensing fabric and a preparation method and application thereof, a pressure sensor, a pressure sensing foot pad and a plantar pressure value acquisition system, and belongs to the technical field of flexible sensors. The warp-knitted interval sensing fabric comprises an electrode layer, a monofilament interval layer and a sensing layer which are sequentially laminated; the warp-knitted interval sensing fabric is of an integrally formed structure; the electrode layer is provided with a full-penetrating double-comb structure and comprises a plurality of conductive strips which are arranged in parallel, and an insulating strip is arranged between every two adjacent conductive strips; the monofilament spacing layer is formed by mutually connecting fiber coils, and the electrode layer and the sensing layer are connected through the fiber coils; the sensing layer has a full-penetration double-comb weave and is obtained by weaving sensing yarns. According to the warp-knitted spacer sensing fabric pressure sensor, the electrode layer, the monofilament spacer layer and the sensing layer are integrally formed, the process is simple, the cost is low, and large-scale production and practical application are facilitated.

The invention discloses monofilament prepreg yarn dry-method winding equipment and a tension control method, and relates to the technical field of composite material forming, the monofilament prepreg yarn dry-method winding equipment comprises an unwinding yarn box, a yarn roll is connected with a driving motor and used for outputting yarn, the yarn is wound on a hook leg buffer mechanism after being led out of the yarn roll, and the hook leg buffer mechanism is used for adjusting the tension of the yarn; a main shaft is rotatably arranged on the gantry frame in the length direction, and a mold is arranged on the main shaft; the moving trolley is in sliding connection with the gantry frame in the length direction of the gantry frame, the moving trolley is provided with a yarn winding nozzle, the yarn winding nozzle corresponds to the mold, and the yarn enters the yarn winding nozzle after being led out of the hook leg buffering mechanism and is wound on the mold. According to the invention, high-speed automatic winding of monofilament prepreg yarns can be realized, the automation degree is high, and the production efficiency is improved. The yarn tension output by each yarn roll is independently adjusted based on the tension after stranding, the control precision of the yarn tension is improved, the tension is kept stable, and therefore the yarn winding quality is improved.

The invention discloses a polyester ITY yarn and a production method thereof. The method comprises the following steps: extruding a polyester melt from a spinning assembly under the control of two groups of metering pump frequency converters, cooling to obtain polyester monofilaments, oiling part of the polyester monofilaments through an oil nozzle, drawing and shaping through GR0 and a hot roller box to prepare FDY (Fully Drawn Yarn), and oiling the other part of the polyester monofilaments to prepare POY (Polyester Pre-Oriented Yarn); fDY (fully drawn yarn) is mixed with POY (pre-oriented yarn) in a pre-interlacing device through GR1 for pre-interlacing, then enters a main interlacing device through GR2 for main interlacing, and finally enters a winding machine through GR3 for winding to obtain ITY; before entering the pre-interlacing device, the tension of the FDY is 10-14 cN, the tension of the POY is 12-16 cN, the tension of the FDY is smaller than that of the POY, and the tension difference is 1-2 cN. According to the invention, conventional FDY production equipment is utilized, and a one-step method is adopted to prepare the super-imitation cotton ITY combined filament yarn with good moisture and air permeability.

The invention discloses a continuous fiber reinforced thermoplastic composite material and a preparation method thereof. The continuous fiber reinforced thermoplastic composite material comprises 35-40% of a polypropylene matrix with a melt index of 10-30 g / 10 min; 55% of continuous fibers are selected from glass fibers, carbon fibers or basalt fibers which are arranged in one direction, and the monofilament diameter is 9-15 microns; the intumescent flame retardant and the ammonium polyphosphate are compounded according to the mass ratio of 2: 1; 1-2% of an interface modifier, wherein a silane coupling agent KH-570 or PP-g-MAH is selected and used; the roughness Ra of the aluminum foil layer is 1.5-2.5 microns; under the condition of basically ensuring that the overall performance of the material is not greatly influenced, the application capability of the material is expanded, and the fireproof and flame-retardant capability of the material is improved, so that a thermoplastic composite material scheme can also be adopted under various harsh use conditions.

The invention discloses an air layer breathable fabric with upper and lower mesh jacquard, a weaving process and a vamp, and relates to the technical field of fabrics. The upper and lower mesh jacquard air layer breathable fabric comprises a surface layer, a middle layer and a bottom layer, the surface layer and the bottom layer are woven and connected through monofilaments or multifilaments to form an air layer, the middle layer comprises a plurality of cavities, and the surface layer and the bottom layer are both provided with a plurality of semi-through holes. The tuck semi-through holes and the full-through holes are formed in the surface layer and / or the bottom end, and the air layer is arranged between the surface layer and the bottom layer to improve the ventilation effect; the doubling stitch semi-through holes are formed in the surface layer and the bottom layer in an inclined needle mode, and the heat retention property of the air layer breathable fabric in the whole application process is improved; according to the air layer breathable fabric, the overall structure is matched, so that the fabric has breathability and heat retention property, the layer bodies are connected in a staggered mode, and the integrity of the fabric is better.

The invention belongs to the technical field of spinning, and relates to a method for dotting network points on polyester industrial yarn with large filament number and a used network device. The invention relates to an interlacer for dotting interlacing points of polyester industrial yarns with large filament number. A tow channel, a compressed air channel and an air injection rotating device are arranged in the interlacer; an air flow channel is formed in the air injection rotating device, the air flow channel is the only channel between the tow channel and the compressed air channel, the air flow channel is a cylindrical channel, and the included angle between the center axis of the air flow channel and the long axis of the ellipsoid is larger than 0 degree and smaller than 90 degrees; the inner surface of the tow channel consists of an upper curved surface and a lower curved surface; the upper curved surface consists of an inclined surface a, an arc surface and an inclined surface b; according to the method for dotting the interlaced points on the polyester industrial yarn with the large filament number, the polyester industrial yarn with the large filament number penetrates through the tow channel of the interlacing device, and compressed air is continuously introduced into the compressed air channel. The interlacing device and the interlacing method can improve the interlacing degree of the polyester industrial yarn with large filament number.

The invention relates to the technical field of fiber sizing treatment, and discloses an aramid fiber sizing device and method.The aramid fiber sizing device comprises a yarn unwinding device, a sizing tank, a yarn spreading and drying device and a winding device, the yarn spreading and drying device comprises a primary yarn spreading assembly, a drying roller and a secondary yarn spreading assembly, and the yarn spreading assembly comprises a first vibration roller, a conveying roller and a second vibration roller; the vibrating roller vibrates in the direction perpendicular to the fiber conveying direction. After being unreeled, fibers are sized through the sizing tank and fed into the yarn spreading and drying device to be subjected to wet broadening, mechanical damage to fiber bundles is reduced, and broken filaments are reduced. During primary yarn spreading, the vibrating roller vibrates at high frequency to enable fiber bundles to be dispersed and widened under the action of transverse friction force, extrusion mechanical damage of the fiber bundles is reduced, broken filaments are reduced, redundant size is removed, drying is facilitated, and adhesion between monofilaments is reduced. During secondary yarn spreading, fiber bundling force applied by surface tension of slurry does not need to be overcome, secondary spreading of fiber bundles is achieved under high-frequency vibration of the vibrating roller, and good monofilament dispersity is guaranteed.

The invention discloses special cloth for a single-sided terry bath foaming towel and a weaving method of the special cloth. The terry cloth comprises a three-layer structure integrally woven by a warp knitting machine, wherein the three-layer structure comprises a base layer and 100D / 36F polyester filament yarn warp knitting chain weave; the binding layer is a 100D / 96F polyester filament chain stitch and penetrates through the substrate layer; the looped pile layer is of a vertical looped pile structure formed by 300D / 10F polyester filaments, the height of looped piles is 7-8 mm, and the density of the looped piles is 25-30 / cm; the thickness ratio of the base layer to the binding layer to the looped pile layer of the three-layer structure is 0.6: 1: 7. The three kinds of yarns with different thicknesses are combined to form a three-layer structure, the three-layer structure is directly formed through warp knitting, a traditional fuzzing roller is not needed for fuzzing, the upright performance of a looped pile is guaranteed, it is guaranteed that the looped pile does not generate monofilament breakage and is stable in structure, and the foaming performance and the weaving feasibility are balanced.

The invention relates to the technical field of fiber reinforcement, and discloses a melt impregnation weaving process of a flame-retardant fiber reinforced thermoplastic filling rope, the melt impregnation weaving process comprises fiber pretreatment, melt impregnation, multi-stage stretching setting, weaving forming and post-treatment, through the synergistic effect of plasma activation and nano flame-retardant pretreatment, the fiber surface activity and the flame retardant binding force are improved, and the flame-retardant fiber reinforced thermoplastic filling rope is obtained. Meanwhile, a segmented temperature control melt impregnation process is combined, so that the resin is ensured to form a uniform and complete coating layer on the surface of the fiber monofilament, the problems of weakening of interface bonding and non-uniform flame-retardant distribution in a traditional process are solved, and the flame-retardant efficiency and mechanical reliability of the filling rope are improved; a dynamic mathematical model of the tension gradient and the traction speed is established, the fiber crystallization orientation process is controlled, and the internal stress concentration phenomenon is eliminated; in combination with a dynamic tension compensation mechanism during weaving forming, the weaving tightness of the coating layer is corrected in real time, and the dimensional stability and the anti-fatigue performance of the filling rope under the complex load are guaranteed.

The invention discloses high-density ultra-thin electronic-grade glass fiber cloth, and relates to the technical field of glass fiber cloth preparation, the high-density ultra-thin electronic-grade glass fiber cloth is formed by weaving warp yarns and weft yarns with the monofilament diameter of 4.0 microns, the warp and weft density is 90-100 pieces / inch, an air jet loom is combined with an auxiliary air jet mechanism for plain weaving, and it is guaranteed that fibers are tightly arranged; the preparation method comprises the steps of low-speed warping, weaving, desizing, deep splitting, cleaning and surface treatment. During weaving, through low-tension control and low-pressure airflow assistance, the fabric structure is more compact and uniform; a three-step method is adopted to gradually eliminate most slurry, and the slurry is further removed through liquefaction desizing; splitting and cleaning adopt a water flow and air flow combined mode, so that fiber opening is ensured, and the slurry residue rate is reduced to the minimum; finally, the strength of the high-density ultrathin electronic-grade glass fiber cloth is improved through treatment of a silane coupling agent; and low-tension and extremely low-slurry-residue-rate weaving of the high-density ultrathin electronic-grade glass fiber cloth is realized.

The present invention discloses a carbon fiber matrix composite structure grinding wheel and a manufacturing method thereof. The carbon fiber matrix composite structure grinding wheel comprises a carbon fiber matrix, a grinding wheel piece and a monofilament pre-tightening cloth. The grinding wheel piece is sleeved on the carbon fiber matrix, and the two are bonded by gluing. The monofilament pre-tightening cloth is wound on the carbon fiber matrix. The carbon fiber matrix composite structure grinding wheel of the present invention solves the problems of large mass, low specific strength and modulus, large inertia and poor vibration resistance of existing metal grinding wheels; the present invention also discloses a manufacturing method of a carbon fiber matrix composite structure grinding wheel, by which a carbon fiber matrix composite structure grinding wheel can be manufactured.

The invention discloses a carbon fiber prepreg, a preparation method thereof and a carbon fiber composite material, and relates to the technical field of advanced material compounding. The carbon fiber prepreg comprises a carbon fiber layer, a first resin matrix and a second resin matrix, the carbon fiber layer is coated with the first resin matrix, and gaps in the carbon fiber layer are filled with the first resin matrix; the first resin matrix is coated with the second resin matrix, and the second resin matrix comprises toughening particles; carbon fiber monofilaments of the carbon fiber layer have preset diameters which are larger than or equal to a preset threshold value. The carbon fiber composite material prepared from the carbon fiber prepreg has excellent compression performance, and the impact resistance, durability and other performance of the composite material can be effectively improved.

The invention provides an intelligent evaluation method for mechanical properties of a carbon fiber composite material, and relates to the technical field of material performance analysis, and the method comprises the following steps: evaluating the performance dispersion of a current batch of samples according to a fiber agglomeration area proportion and a carbon fiber monofilament diameter, and comparing the performance dispersion with a preset dispersion threshold, identifying a non-manufacturability discrete risk level; determining the tensile strength value of each sample through a tensile test, performing statistics to obtain a strength mean value and a strength standard deviation, performing matching analysis on the performance dispersion, the strength mean value and the strength standard deviation, and extracting the fiber reinforcement efficiency; performing weighted fusion processing on the fiber reinforcement efficiency and the fiber agglomeration area proportion to obtain a current batch fiber form comprehensive index, comparing the current batch fiber form comprehensive index with a historical batch, and identifying a fiber form change amplitude; and evaluating the quality consistency degree among the batches according to the strength deviation value and the dispersion difference among the batches, and identifying the non-manufacturability discrete source.

This invention provides a multifunctional gradient composite filament for 3D printing, its preparation method, and its applications, relating to the field of additive manufacturing materials technology. The filament's cross-section includes at least two structurally or functionally distinguishable regions, each region composed of a thermoplastic polymer with different chemical properties, or a thermoplastic polymer matrix with the same chemical properties but different functional modifications. These at least two regions are arranged in an ordered spatial pattern on the filament's cross-section using a multi-component co-extrusion technique, enabling pre-design and integration of properties. This invention overcomes the inherent limitations of traditional single-material filaments, achieving multifunctionality and performance designability of a single filament. It significantly improves the interlayer bonding performance of multi-component 3D printing and the comprehensive mechanical properties of the printed composite material. Furthermore, it allows for the production of components with both functional gradients and high mechanical properties in a single printhead operation, making it suitable for mass production.

A detachable carpet mat, where raised monofilaments and fleeces are bent through a high temperature to form a hooking-connecting effect with a first water-repellent anti-slip layer placed below the monofilaments and the fleeces, resulting in better bonding capacity, greater friction force and better firmness. Melted and solidified through the high temperature, the monofilaments and fibers of a hooking layer are not prone to falling off; the monofilaments of the hooking layer have a certain curvature and surfaces of small bumps of piles are passivated so as to prevent users from accidentally hurting their hands, and at the same time, enhance the locking effect with the first water-repellent anti-slip layer below.

The utility model relates to a wire drawing machine for glass fiber yarn with uniform anti-adhesion, comprising a bottom plate and a bracket installed on the top of the bottom plate, a melting furnace is installed on the top inner wall of the bracket, a discharge pipe is installed at the bottom of the melting furnace, a control valve is installed on the outside of the discharge pipe, a leakage plate is installed at the bottom of the discharge pipe, a plurality of leakage holes are opened at the bottom of the leakage plate, a cooling mechanism is arranged below the leakage plate, the cooling mechanism comprises a cooling box installed inside the bracket, and a plurality of cooling pipes installed at the bottom of the leakage plate and corresponding to the plurality of leakage holes. During the use of the utility model, an impregnating agent can be sprayed on the surface of the glass fiber yarn, which can not only weaken the static electricity on the fiber surface, but also give the fiber yarn good lubricity and bundling property, so that several single filaments can be well bonded together, and adhesion between the filaments and the winding tube or between the original filaments can be prevented.

A manufacturing method of an SMC of the present invention comprises (i) forming chopped carbon fiber bundles by chopping a continuous carbon fiber bundle having a filament number of NK with a rotary cutter, (ii) fragmentation-processing the chopped carbon fiber bundles by using a fragmentation-processing apparatus comprising a rotating body, (iii) forming a carbon fiber mat by depositing the fragmentation-processed chopped carbon fiber bundles on a carrier film traveling below the rotary cutter, and (iv) impregnating the carbon fiber mat with a thermosetting resin composition, wherein N is 20 or more, and the fragmentation-processing apparatus comprises a first pin roller and a second pin roller which are disposed side by side, each having a rotation axis parallel to a rotation axis direction of the rotary cutter.

The utility model relates to a center twisting type ultra-weak fiber bragg grating temperature and humidity stranded yarn, which adopts a humidity ultra-weak fiber bragg grating array, the temperature ultra-weak fiber bragg grating array and Kevlar fibers are combined to wrap a spiral armor tube, and then a metal wire braid layer is braided along the axial direction to form a temperature and humidity intelligent monofilament; the temperature and humidity intelligent monofilament serves as a center filament and is twisted with the six stainless steel wires to form a cable shape, and the temperature and humidity stranded filament of the ultra-weak fiber grating is manufactured. According to the utility model, the long-distance temperature and humidity ultra-weak fiber grating array is adopted to monitor temperature and humidity, temperature compensation is facilitated, temperature and humidity changes can be quickly responded, the filamentation porosity is large, the response speed is high, the mechanical strength is high, the adaptability is strong, and subsequent processing is facilitated.

The invention relates to a bi-component fiber and a preparation method thereof, polyester melt and polyamide melt are extruded from a spinneret plate side by side, cross air blowing cooling is performed to obtain nascent fiber, and then the nascent fiber is sequentially subjected to heat pipe heating, oiling, pre-interlacing, three-roller drafting heat setting and winding to obtain the bi-component fiber. The heat pipe is used for heating nascent fibers, and the temperature of the heat pipe is 90-100 DEG C; the three rollers comprise a first hot roller, a second hot roller and a third hot roller; the temperature of the first hot roller is 70-90 DEG C, the temperature of the second hot roller is 110-130 DEG C, and the temperature of the third hot roller is 140-160 DEG C; the filament number of the prepared bi-component fiber is 2.6-3.5 dtex, the breaking strength is larger than or equal to 3.23 cN / dtex, the elongation at break is 27.45-38.31%, the number of broken ends is smaller than or equal to 2.3 times / (48 bits. 24 hours), and the broken filament rate is stably controlled to be 0.30% or below. According to the preparation method, generation of internal stress is greatly reduced; the mechanical property of the bi-component fiber is improved, and the number of broken ends and the broken filament rate of the fiber are obviously reduced.

The invention relates to a continuous carbon fiber silica gel thermal interface material and a preparation method thereof, and the preparation method of the continuous carbon fiber silica gel thermal interface material is characterized in that the continuous carbon fiber silica gel thermal interface material is finally prepared by taking a carbon fiber bundle in a plurality of rolls of carbon fiber yarn shafts as a starting point through eight steps, and carbon fiber monofilaments in the continuous carbon fiber silica gel thermal interface material are distributed in the same direction. In the continuous carbon fiber silica gel thermal interface material, all carbon fibers are parallel in the thickness direction of the continuous carbon fiber silica gel thermal interface material; and the length of each carbon fiber is the same as the thickness of the continuous carbon fiber silica gel thermal interface material, so that the transfer path of heat along the carbon fibers in the heat dissipation process is shortest, and the axial heat-conducting property of the carbon fibers is maximized. The carbon fibers in the continuous carbon fiber silica gel thermal interface material are all in the same direction and are continuous, so that the heat dissipation performance of the continuous carbon fiber silica gel thermal interface material can be greatly improved.

The present disclosure provides a novel type of fiber monofilament for use in place of non-sustainable cotton. The fiber monofilaments comprise at least 50% by weight of non-regenerated microfibrillated cellulose (MFC), an amino-functional polymer component, and an epoxy-functional crosslinker. In addition, the present disclosure provides a product comprising the fiber monofilament and a method of making the fiber monofilament.

The utility model discloses an air layer breathable fabric with upper and lower mesh jacquard and a vamp, and relates to the technical field of fabrics. The upper and lower mesh jacquard air layer breathable fabric comprises a surface layer, a middle layer and a bottom layer, the surface layer and the bottom layer are woven and connected through monofilaments or multifilaments to form an air layer, the middle layer comprises a plurality of cavities, and the surface layer and the bottom layer are both provided with a plurality of semi-through holes. The tuck semi-through holes and the full-through holes are formed in the surface layer and / or the bottom end, and the air layer is arranged between the surface layer and the bottom layer to improve the ventilation effect; the doubling stitch semi-through holes are formed in the surface layer and the bottom layer in an inclined needle mode, and the heat retention property of the air layer breathable fabric in the whole application process is improved; according to the air layer breathable fabric, the overall structure is matched, so that the fabric has breathability and heat retention property, the layer bodies are connected in a staggered mode, and the integrity of the fabric is better.

The invention relates to the technical field of vacuum packaging, in particular to polypropylene monofilament filter material vacuum packaging equipment which comprises a box body, a side supporting block is fixedly connected to the outer side wall of the box body, two packaging grooves are fixedly connected to the top end of the box body, and a control panel is integrally and fixedly connected to the outer wall of the side, away from the side supporting block, of the box body. The bottom end of the box body is detachably connected with universal wheels and a sealing switching mechanism, and the sealing switching mechanism comprises a driving shaft and two driven shafts. Feeding and discharging of packages are completed through the taking mechanism, vacuum treatment is conducted on the packages through the vacuum pump, sealing of the packages is completed through the sealing switching mechanism, the sealing performance of the vacuum packages is guaranteed, after discharging of one carrying plate is completed, the other carrying plate completes material taking through lifting of the material taking plate, manual intervention is reduced, and the working efficiency is improved. The production efficiency of vacuum packaging of the polypropylene fiber monofilament filter material is greatly improved, and the packaging quality defective rate is reduced.

The invention relates to an ultra-weak fiber bragg grating temperature and humidity sensing intelligent stranded yarn and an application method thereof, a humidity ultra-weak fiber bragg grating array is adopted, the temperature ultra-weak fiber bragg grating array and Kevlar fibers are combined and then wrap a spiral armor tube, and then a spiral armor braid layer is processed in the axial direction to form a temperature and humidity intelligent monofilament; the temperature and humidity intelligent monofilament and the five outer-layer stainless steel wires are twisted to form a center stainless steel wire, the center stainless steel wire and the five outer-layer stainless steel wires are twisted to form a cable shape, and then the strand woven layer is woven in the length direction of a cable body, so that the ultra-weak fiber grating temperature and humidity sensing intelligent strand is formed. The long-distance temperature and humidity ultra-weak fiber grating array is adopted to monitor temperature and humidity, temperature compensation is facilitated, temperature and humidity changes can be quickly responded, the filamentation porosity is large, the response speed is high, the mechanical strength is high, adaptability is high, and follow-up machining is facilitated.

The invention discloses a special spinning oil agent for PEEK fine denier monofilament, which comprises the following components in percentage by mass: 35-65% of smoothing agent, which is prepared by mixing heat-resistant synthetic ester and polyether modified siloxane according to the mass ratio of (2-5): 1; the composite antistatic agent is formed by mixing alkyl sulfonate and potassium alkyl phosphate according to the mass ratio of 1: (1-2); the compound emulsifier is formed by mixing fatty alcohol-polyoxyethylene ether and castor oil polyoxyethylene ether according to the mass ratio of (1-3): 1; 4-12% of a high temperature resistant additive, which is tricresyl phosphate; 1-6% of a bundling agent which is a polyoxyethylene ether compound; 0.5-4% of a fiber splitting agent, which is a siloxane derivative; the functional additive is prepared by mixing a hindered phenol antioxidant and nano silicon dioxide according to the mass ratio of (1-3): 1; and 5-15% of deionized water. The high-temperature-resistant antistatic emulsion has the advantages of excellent high-temperature resistance, antistatic effect and emulsion stability.

A polyester-based woven hook-and-loop fastener including: a woven-fabric and engaging elements, in which the woven-fabric in which a polyethylene terephthalate-based multifilament yarn is a warp yarn and a polyester-based heat-fusible multifilament yarn is a weft yarn is a woven base fabric, a yarn for the engaging elements made of at least one kind selected from the group consisting of a polyethylene terephthalate-based monofilament yarn and a polyester-based multifilament yarn, is woven in parallel to the warp yarn into the woven base fabric, the engaging elements that are formed of the yarn for the engaging elements, that are made of at least one kind selected from the group consisting of a large number of hook shapes and loop shapes, and that rise up from a front face of the woven base fabric, exist on the front face of the woven base fabric, bases of the engaging elements are fixed to the woven base fabric by a melt-solidified material of a heat-fusible component of the the polyester-based heat-fusible multifilament yarn, and the polyethylene terephthalate-based multifilament yarn is made of a copolymerized polyethylene terephthalate containing, as copolymerization components, 1.0 to 2.0 mol % of isophthalic acid with respect to a total amount of dicarboxylic acids and 2.0 to 3.5 mol % of diethylene glycol with respect to a total amount of diols.

Described is an insect net strip produced from a wide insect net which has been cut in a warp direction (xnet) by means of a one-step ultrasonic cutting and welding process. The insect net strip includes warp yarns and weft yarns extending substantially perpendicular to each other and at least 90% of the warp and weft yarns are monofilament yarns made of a thermoplastic material. After cutting and welding process the insect net strip has a first and a second edge extending parallel to said warp yarns each including a deformation zone being constituted by consolidated thermoplastic material deriving at least from said weft yarns. The deformation zone has a width (wdz) in the transverse direction (ystrip) of between 0.5-35 times the weft yarn diameter (øwe). At least 90% of gaps between adjacent weft yarns in the deformation zone are closed by consolidated thermoplastic material at least from the weft yarns which has been melted together to form a continuous or substantially continuous reinforced band-shaped edge portion of said insect net strip. The insect net strip is suitable for use in accordion-style constructions in greenhouse ventilation openings. A method for producing the insect strips is also described.