Braid, manufacturing method and application of braid

Abstract

The invention relates to the technical field of automotive trim textile accessories, and discloses a braid and a manufacturing method and application thereof.The braid comprises a middle area, multiple sets of weft yarn areas, a left side area arranged on one side of the middle area, and a right side area arranged on the side, away from the left side area, of the middle area; the middle area comprises a middle left area, a middle area and a middle right area, multiple groups of first warp yarns and second warp yarns are alternately arranged in the middle left area, the middle area and the middle right area, and first weft yarns, second weft yarns and third weft yarns are sequentially arranged in the weft yarn area. According to the braid and the manufacturing method, polyester particles are colored and then are melted and spun into three kinds of polyester high-tenacity yarns 100D, 75D and 50D of black yarns to serve as warp yarns and weft yarns, the warp yarns are combined into a warp-wise raw material after being wrapped by 75D and super-strong high-temperature-resistant stretch yarns 40D, a woven braid machine is adopted, a high-density and high-tightness plain weaving method is adopted, after the braid is manufactured into a belt, the surface of the belt is flatly laid, and the warp-wise raw material and the weft-wise raw material are combined into the warp-wise raw material. And no wave upwarp or wrinkle exists.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automotive interior textile accessories, in particular to a bound tape applied to the side of a sunroof and a sunroof sunshade curtain, and more particularly to a tape, a manufacturing method and applications thereof. BACKGROUND

[0002] Currently, in the industry of woven tape, it is used in traditional clothing, home textiles, furniture and other industries. In China and even globally, it is impossible to achieve high flatness (without any wave, wrinkle, and uneven edge within 1 meter, and when laid flat, it is tightly attached to the platform surface, and the straightness is controlled to be less than 0.1 mm, with a high tear resistance of more than 30N, and a fixed elastic elongation of 10% at 5N-10N), and this condition is also the prerequisite for ensuring 10-year long life and high stability of the sunroof sunshade curtain during use.

[0003] When the tape is connected to the sunroof sunshade curtain, if the flatness is poor, the surface of the curtain is more prone to wrinkles, bulges, and unevenness during the movement of the curtain, and the uneven tape is more prone to cause large gaps in the edge of the sunshade curtain and strong friction with the edge accessories, resulting in loud noises.

[0004] The current existing sunroof sunshade curtain bound tape has a key process and material core contradiction: first, the spandex has insufficient high temperature resistance, and the traditional 40D spandex yarn can withstand a temperature of ≤100℃, while the tape finishing requires high temperature and high pressure setting at 120-180℃ to ensure flatness and dimensional stability, which causes the spandex to easily break, resulting in a decrease in the tear strength of the tape by more than 30%; second, the polyester yarn has poor high temperature adaptability, and the conventional polyester yarn is prone to excessive thermal shrinkage (≥5%) and color yellowing (color fastness ≤2) at temperatures above 150℃, which cannot be matched with the high temperature resistant spandex; third, the process and material are disconnected, and a collaborative system of "high temperature resistant spandex + high temperature resistant polyester + high temperature process" has not been formed, which either reduces the process temperature to cause poor flatness (1 meter length wave height ≥2mm), or sacrifices the material requirements. SUMMARY

[0005] In view of the above-mentioned key process and material core contradiction of the existing automobile panoramic sunroof sunshade curtain edge-wrapped tape: first, the spandex is not resistant to high temperature, the traditional 40D spandex yarn can withstand a temperature of less than 100 DEG C, but the tape needs to be shaped at a high temperature of 120-180 DEG C under high pressure to ensure flatness and dimensional stability, which causes the spandex to break easily, and finally the tape tear strength decreases by more than 30%; second, the high-temperature adaptability of polyester yarn is poor, and the conventional polyester yarn is prone to excessive thermal shrinkage (≥5%) and color yellowing (color fastness ≤2) at a temperature of more than 150 DEG C, and cannot be matched with high-temperature-resistant spandex; third, the process and material are disconnected, and a collaborative system of "high-temperature-resistant spandex + high-temperature-resistant polyester + high-temperature process" has not been formed, which requires either reducing the process temperature to cause poor flatness (the wave height of 1 meter is greater than or equal to 2 mm) or sacrificing the material requirements.

[0006] Therefore, the purpose of the present application is to provide a tape and a manufacturing method, which aims to: use domestic shuttle or shuttleless tape overlock machines for weaving, interweave the special threading method of the alternating number of special threading method warp yarns in the weft yarn and the reed through the weft yarn guide mechanism in the tape machine, that is, divide the width of the tape ground organization into three parts, divide the edge organization into a 3-in threading method, and use a 2*2-in ground organization, use a 3-in method 2-in method interlacing rule in the middle, and after the warp yarn unwinds on the disc head, the warp yarn is sent forward by the lateral sliding prevention device on both sides of the warp yarn in the back beam, and the size of the warp yarn is strictly controlled within ±5 mm, and is smoothly sent into the weaving mouth, so as to accurately form the warp position line area, and in the design aspect, the highest interlacing point plain weave is used, and the weft force device is used to tightly fix the warp yarn and the weft yarn, since the warp yarn in the tape is about 100D-110D (composite wire), and the weft yarn is about 75D-100D, the difference between the warp density is about 25%, so that the state of the close tightness of the warp and weft is overcome, and the coverage coefficient ratio of the same warp and weft reaches a high similar value of 1:0.95.

[0007] To solve the above technical problems, the present application provides the following technical scheme: a tape and a manufacturing method, comprising an intermediate region and a plurality of weft yarn regions, and a left side region provided on one side of the intermediate region, and a right side region provided on the side away from the left side region of the intermediate region, the intermediate region comprising a middle left region, a middle region and a middle right region; The first warp yarn and the second warp yarn are alternately arranged in the middle left region, the middle region and the middle right region, and the weft yarn region comprises a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn, a fifth weft yarn and a sixth weft yarn in sequence.

[0008] As a preferred scheme of the present application, the first warp yarn is woven below the first weft yarn and the third weft yarn, and above the second weft yarn, the second warp yarn is woven above the first weft yarn and the third weft yarn, and below the second weft yarn.

[0009] As a preferred solution of the present application, wherein: the left side area comprises six groups of left yarns, the first weft yarn is successively knitted above the first group of left yarns, above the second group of left yarns, below the third group of left yarns, above the fourth group of left yarns, below the fifth group of left yarns and above the sixth group of left yarns from a group of left yarns close to the middle area; the second weft yarn is successively knitted below the first group of left yarns, above the second group of left yarns, above the third group of left yarns, below the fourth group of left yarns, above the fifth group of left yarns and below the sixth group of left yarns from a group of left yarns close to the middle area; the third weft yarn is successively knitted above the first group of left yarns, below the second group of left yarns, above the third group of left yarns, above the fourth group of left yarns, below the fifth group of left yarns and above the sixth group of left yarns from a group of left yarns close to the middle area; the fourth weft yarn is successively knitted above the first group of left yarns, above the second group of left yarns, below the third group of left yarns, above the fourth group of left yarns, above the fifth group of left yarns and below the sixth group of left yarns from a group of left yarns close to the middle area; the fifth weft yarn is successively knitted below the first group of left yarns, above the second group of left yarns, above the third group of left yarns, below the fourth group of left yarns, above the fifth group of left yarns and above the sixth group of left yarns from a group of left yarns close to the middle area; the sixth weft yarn is successively knitted above the first group of left yarns, above the second group of left yarns, below the third group of left yarns, above the fourth group of left yarns, above the fifth group of left yarns and below the sixth group of left yarns from a group of left yarns close to the middle area.

[0010] As a preferred solution of the present application, wherein: the right side area comprises six groups of right yarns, the first weft yarn is successively knitted below the first group of right yarns, below the second group of right yarns, above the third group of right yarns, above the fourth group of right yarns, below the fifth group of right yarns and below the sixth group of right yarns from a group of right yarns close to the middle area; the second weft yarn is successively knitted below the first group of right yarns, below the second group of right yarns, above the third group of right yarns, above the fourth group of right yarns, below the fifth group of right yarns and above the sixth group of right yarns from a group of right yarns close to the middle area; the third weft yarn is successively knitted above the first group of right yarns, above the second group of right yarns, below the third group of right yarns, below the fourth group of right yarns, above the fifth group of right yarns and above the sixth group of right yarns from a group of right yarns close to the middle area; The fourth weft yarn is sequentially woven above the first group of right yarns, above the second group of right yarns, below the third group of right yarns, below the fourth group of right yarns, above the fifth group of right yarns and above the sixth group of right yarns from a group of right yarns close to the middle area; The fifth weft yarn is sequentially woven below the first group of right yarns, below the second group of right yarns, above the third group of right yarns, above the fourth group of right yarns, below the fifth group of right yarns and below the sixth group of right yarns from a group of right yarns close to the middle area. The sixth weft yarn is sequentially woven below the first group of right yarns, below the second group of right yarns, above the third group of right yarns, above the fourth group of right yarns, below the fifth group of right yarns and above the sixth group of right yarns from a group of right yarns close to the middle area.

[0011] As a preferred scheme of the present application, wherein: the left yarn and the right yarn are 50D fine yarn, the first warp yarn and the second warp yarn are mixed from 75D polyester yarn and 40D spandex yarn, and the first weft yarn, the second weft yarn and the third weft yarn are 100D polyester yarn.

[0012] As a preferred scheme of the present application, wherein: the number of the first warp yarn and the second warp yarn in the middle left area is 64, the number of the first warp yarn and the second warp yarn in the middle area is 228, and the number of the first warp yarn and the second warp yarn in the middle right area is 28.

[0013] As a preferred scheme of the present application, wherein: the woven tape is applied in the side edge overlock of the openable sunshade curtain of the automobile roof window and the sunshade curtain of the automobile roof.

[0014] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a manufacturing method of a woven tape, comprising the following steps: Step one: sequentially pass the warp yarns according to four areas, the number is continuously increased from 1 to 358 without discontinuity and repetition, strictly follow the rule of "tooth position corresponding to the number of yarns, area symmetry matching", ensure the process requirements of 57.0±0.05mm of the machine width and 235 teeth / 10cm of the reed number; Step two: left area and right area: edge organization area (divided into left and right sides, a total of 12 teeth, 38 warp yarns, numbered 1-38) Left area (tooth 1-6): pass 3 warp yarns per tooth, sequentially pass according to the number order-tooth 1 passes number 1, 2, 3; tooth 2 passes 4, 5, 6; tooth 3 passes 7, 8, 9; tooth 4 passes 10, 11, 12; tooth 5 passes 13, 14, 15; tooth 6 passes 16, 17, 18, a total of 18 warp yarns.

[0015] Right area (tooth 7-12): tooth 7-11 each tooth wears 3 warp yarns, tooth 12 wears 2 - tooth 7 wears 19, 20, 21; tooth 8 wears 22, 23, 24; tooth 9 wears 25, 26, 27; tooth 10 wears 28, 29, 30; tooth 11 wears 31, 32, 33; tooth 12 wears 34, 35, 36, 37, 38 (2 additional), a total of 20 warp yarns; Step three, left area: ground organization left side (tooth 13-44, 32 teeth, 64 warp yarns, numbered 39-102) Each tooth is fixed with 2 warp yarns, which are continuously inserted according to the number - tooth 13 wears 39, 40; tooth 14 wears 41, 42; each subsequent tooth increases by 2, until tooth 44 wears 101, 102, 32 teeth, a total of 64 warp yarns, the method is mirror symmetric with area 4; Step four, middle area middle alternating area (tooth 45-120, 76 teeth, 228 warp yarns, numbered 103-330) Each tooth is fixed with 3 warp yarns, which are continuously inserted according to the number - tooth 45 wears 103, 104, 105; tooth 46 wears 106, 107, 108; each subsequent tooth increases by 3, until tooth 120 wears 328, 329, 330, 76 teeth, a total of 228 warp yarns, ensuring uniform density of warp yarns in the middle area; Step five, right area of the middle ground organization right side (tooth 121-134, 14 teeth, 28 warp yarns, numbered 331-358) Mirror area 2, each tooth wears 2 warp yarns - tooth 121 wears 331, 332; tooth 122 wears 333, 334; each subsequent tooth increases by 2, until tooth 134 wears 357, 358, 14 teeth, a total of 28 warp yarns, forming a structural balance with the left ground organization; Step six, coordinated control of weft insertion, beating-up and winding Weft insertion system: use reed arc and conjugate wheel or electronic multi-arm opening mechanism (response time ≤0.01s) equipped with air jet loom, main nozzle pressure 0.55±0.01MPa, auxiliary nozzle pressure 0.4±0.01MPa, weft insertion time and opening time are synchronized at millisecond level (controlled by encoder closed loop), the weft yarn flight trajectory is absolutely straight, avoiding weft yarn bending leading to poor fit of the tape; Beating-up mechanism: servo beating-up system is used, beating-up force 850-950N (segmented adjustment according to the position of the tape, edge beating-up force 950N, middle 850N), beating-up time 185±1° (main shaft angle), ensuring uniform weft and warp interlacing density, and absolutely flat tape surface; Coiling system: the coiling roller adopts air bag type elastic compression roller (pressure 0.25+ / -0.01 MPa), the coiling tension is 160+ / -2 N, the difference of the tape transverse tension distribution during coiling is less than or equal to 5 N (monitored by multiple tension sensors), the tape is guaranteed to be wrinkle-free and stretch-free during coiling, and absolute adhesion is realized Step seven, precise control of the edge locking system Edge locking mechanism: the numerical control edge locking device is adopted, the edge locking needle spacing error is less than or equal to 0.05 mm, the difference between the locking yarn tension and the weft yarn tension is less than or equal to 1 cN, and the thickness difference between the edge of the tape after edge locking and the main body is less than or equal to 0.02 mm, so that the overall flatness of the tape is ensured, and there is no edge protrusion.

[0016] Compared with the prior art, the present application has at least the following beneficial effects: The present application uses three kinds of polyester high-strength yarns 100D75D 50D spun into black yarns after coloring polyester particles, as warp yarns and weft yarns, wherein the warp yarns are combined into warp composite raw materials after being wrapped with 40D elastic yarns with high temperature resistance, a shuttle weaving tape machine is used, and a plain weave method with high density and tightness is used to weave the tape, so that the surface of the tape is flat without any waves, lifting and wrinkles, and the horizontal straightness is less than 0.1 MM; the thickness is controlled within 0.32 mm+ / -2 MM, and the width is controlled within 55 MM+ / -1 MM. At the same time, the finished tape is further dipped and impregnated with flame retardant to obtain high-efficiency fireproof effect. At the same time, the black edge strip is used for edge wrapping of the two sides of the sunroof or top window sunshade curtain, and can be flexibly adjusted and sewn or combined with other parts and connectors in the form of high-temperature seamless pressing according to the plastic edge strip, metal edge strip or directly without edge and the like. Compared with the traditional plastic edge strip, the sunshade curtain runs more stably and smoothly, and has no wrinkles. The black yarns combined with the color master batch with high temperature resistance, the precise warp yarn count control, the high-density and high-tightness plain weave structure, the high-temperature process resistance, the high tear resistance and the durable flame resistance of the composite edge wrapping tape can solve the strict production and use requirements of traditional adaptation to panoramic sunroofs and replacement of plastic edge wrapping. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a front view structural schematic diagram of the tape and the manufacturing method thereof. Fig. 2 It is a reed method schematic diagram of the tape manufacturing method.

[0018] Explanation of reference signs: 1. left side area; 11. left yarn; 2. right side area; 21. right yarn; 3. middle area; 31. left middle area; 32. middle area; 33. right middle area; 301. first warp yarn; 302. second warp yarn; 4. weft yarn area; 41. first weft yarn; 42. second weft yarn; 43. third weft yarn; 44. fourth weft yarn; 45. fifth weft yarn; 46. sixth weft yarn. DETAILED DESCRIPTION

[0019] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. EMBODIMENT

[0020] REFERENCE Figs. 1-2 For an embodiment of the present application, a woven tape, a manufacturing method and an application thereof are provided, the woven tape comprising a middle area 3 and a plurality of weft yarn areas 4, and a left side area 1 arranged on one side of the middle area 3, and a right side area 2 arranged on a side of the middle area 3 away from the left side area 1, the middle area 3 comprising a left middle area 31, a middle area 32 and a right middle area 33. The left middle area 31, the middle area 32 and the right middle area 33 each comprise a plurality of first warp yarns 301 and second warp yarns 302 arranged alternately, and the weft yarn area 4 comprises a first weft yarn 41, a second weft yarn 42, a third weft yarn 43, a fourth weft yarn 44, a fifth weft yarn 45 and a sixth weft yarn 46 arranged in sequence.

[0021] The first warp yarn 301 is woven below the first weft yarn 41 and the third weft yarn 43, and above the second weft yarn 42, and the second warp yarn 302 is woven above the first weft yarn 41 and the third weft yarn 43, and below the second weft yarn 42.

[0022] The left side area 1 comprises six groups of left yarns 11, and the first weft yarn 41 is woven above the first group of left yarns 11, above the second group of left yarns 11, below the third group of left yarns 11, above the fourth group of left yarns 11, below the fifth group of left yarns 11 and above the sixth group of left yarns 11 in sequence from a group of left yarns 11 close to the middle area 3. The second weft yarn 42 is woven below the first group of left yarns 11, above the second group of left yarns 11, above the third group of left yarns 11, below the fourth group of left yarns 11, above the fifth group of left yarns 11 and below the sixth group of left yarns 11 in sequence from a group of left yarns 11 close to the middle area 3. The third weft yarn 43 is woven above the first group of left yarns 11, below the second group of left yarns 11, above the third group of left yarns 11, above the fourth group of left yarns 11, below the fifth group of left yarns 11 and above the sixth group of left yarns 11 in sequence from a group of left yarns 11 close to the middle area 3. The fourth weft yarn 44 is woven sequentially from a group of left-side yarns 11 near the middle region 3 above the first group of left-side yarns 11, above the second group of left-side yarns 11, below the third group of left-side yarns 11, above the fourth group of left-side yarns 11, above the fifth group of left-side yarns 11, and below the sixth group of left-side yarns 11. The fifth weft yarn 45 is woven sequentially from a group of left-side yarns 11 near the middle region 3 below the first group of left-side yarns 11, above the second group of left-side yarns 11, above the third group of left-side yarns 11, below the fourth group of left-side yarns 11, above the fifth group of left-side yarns 11, and above the sixth group of left-side yarns 11. The sixth weft yarn 46 is woven sequentially from a group of left-side yarns 11 near the middle region 3 above the first group of left-side yarns 11, above the second group of left-side yarns 11, below the third group of left-side yarns 11, above the fourth group of left-side yarns 11, above the fifth group of left-side yarns 11, and below the sixth group of left-side yarns 11.

[0023] The right side region 2 includes six sets of right side yarns 21. The first weft yarn 41 is woven sequentially from the set of right side yarns 21 near the middle region 3 below the first set of right side yarns 21, below the second set of right side yarns 21, above the third set of right side yarns 21, above the fourth set of right side yarns 21, below the fifth set of right side yarns 21, and below the sixth set of right side yarns 21. The second weft yarn 42 is woven sequentially from a group of right-side yarns 21 near the middle region 3 below the first group of right-side yarns 21, below the second group of right-side yarns 21, above the third group of right-side yarns 21, above the fourth group of right-side yarns 21, below the fifth group of right-side yarns 21, and above the sixth group of right-side yarns 21. The third weft yarn 43 is woven sequentially from the right side yarn 21 near the middle region 3 above the first right side yarn 21, above the second right side yarn 21, below the third right side yarn 21, below the fourth right side yarn 21, above the fifth right side yarn 21, and above the sixth right side yarn 21. The fourth weft yarn 44 is woven sequentially from the right side yarn 21 near the middle region 3 above the first right side yarn 21, above the second right side yarn 21, below the third right side yarn 21, below the fourth right side yarn 21, above the fifth right side yarn 21, and above the sixth right side yarn 21. The fifth weft yarn 45 is woven sequentially from the right side yarn 21 near the middle region 3 below the first right side yarn 21, below the second right side yarn 21, above the third right side yarn 21, above the fourth right side yarn 21, below the fifth right side yarn 21, and below the sixth right side yarn 21. The sixth weft yarn 46 is woven sequentially from the right-side yarns 21 near the middle region 3 below the first group of right-side yarns 21, below the second group of right-side yarns 21, above the third group of right-side yarns 21, above the fourth group of right-side yarns 21, below the fifth group of right-side yarns 21, and above the sixth group of right-side yarns 21.

[0024] The left yarn 11 and the right yarn 21 are 50D fine yarns. The first warp yarn 301 and the second warp yarn 302 are a mixture of 75D polyester yarn and 40D spandex yarn. The first weft yarn 41, the second weft yarn 42 and the third weft yarn 43 are 100D polyester yarns.

[0025] In the left-middle zone 31, there are 64 warp yarns 301 and 302; in the center zone 32, there are 228 warp yarns 301 and 302; and in the right-middle zone 33, there are 28 warp yarns 301 and 302. This webbing is used in the edging of automotive sunshades, specifically for the edging of sunshades on both sides of panoramic sunroofs and all-glass roofs. It is made by dyeing polyester particles and then melt-spinning them into black yarns of three high-strength polyester fibers: 75D, 100D, and 50D. These fibers are used as warp and weft yarns. The warp yarns consist of 75D yarns wrapped with extra-strong, high-temperature resistant elastic yarns. The webbing is then woven on a shuttle loom using a high-density, high-tightness plain weave method. The resulting webbing has a flat surface without any waves, curling, or wrinkles, and a horizontal straightness of less than 0.1mm. The thickness is controlled at 0.32mm ± 2mm, and the width at 55mm ± 1mm. The finished webbing is then impregnated with flame retardant to achieve a highly effective fire-retardant effect. This black edge strip is used on both sides of the sunshade of a car sunroof. It can be flexibly adjusted and connected to other parts such as plastic edge strips, metal edge strips, or no edge at all when connecting them. It can be sewn or seamlessly pressed at high temperature. It is more reliable than traditional plastic edge strips. The sunshade is more stable and flatter when running, without wrinkles. The combination of high-temperature resistant custom-made masterbatch and black yarn, along with precise warp count control, achieves a composite edging webbing with "high-temperature process resistance, high tear resistance, and durable flame retardancy" on a high-density, high-tightness plain weave structure. This solves the stringent production and usage requirements of traditional plastic edging, making it suitable for panoramic sunroofs and replacing plastic edging. A method for manufacturing a webbing includes the following steps: Step 1: Insert warp yarns sequentially into the four areas, numbered continuously from 1 to 358, with no gaps or repetitions, strictly following the rule of "tooth position corresponding to the number of yarns inserted and symmetrical matching of areas" to ensure the process requirements of 57.0±0.05mm width and 235 teeth / 10cm reed on the machine. Step 2, Left area 1 and right area (2): Edge weave area (divided into left and right sides, 12 teeth in total, 38 warp yarns, numbered 1-38) Left side area 1 (tooth 1-6): 3 warp yarns are threaded through each tooth, in the order of numbering - tooth 1 threaded with numbers 1, 2, 3; tooth 2 threaded with numbers 4, 5, 6; tooth 3 threaded with numbers 7, 8, 9; tooth 4 threaded with numbers 10, 11, 12; tooth 5 threaded with numbers 13, 14, 15; tooth 6 threaded with numbers 16, 17, 18, for a total of 18 warp yarns.

[0026] Right side area 2 (teeth 7-12): Teeth 7-11 each thread 3 warp yarns, and tooth 12 adds 2 more yarns—tooth 7 threads 19, 20, and 21; tooth 8 threads 22, 23, and 24; tooth 9 threads 25, 26, and 27; tooth 10 threads 28, 29, and 30; tooth 11 threads 31, 32, and 33; tooth 12 threads 34, 35, 36, 37, and 38 (adding 2 more yarns), for a total of 20 warp yarns; Step 3, Middle Left Zone 31: Left side of the ground tissue (tooth 13-44, 32 teeth, 64 warp yarns, numbered 39-102) Two warp yarns are threaded through each tooth, and they are threaded in sequence according to their numbers—tooth 13 threaded through 39 and 40; tooth 14 threaded through 41 and 42; and each subsequent tooth increases by two numbers in turn until tooth 44 threaded through 101 and 102. A total of 64 warp yarns are threaded through 32 teeth. The threading method is mirror-symmetrical to area 4. Step 4, the central area 32 intermediate alternating zone (tooth 45-120, 76 teeth, 228 warp yarns, numbered 103-330). Three warp yarns are threaded through each tooth, and they are threaded in sequence according to their numbers—tooth 45 threaded through 103, 104, and 105; tooth 46 threaded through 106, 107, and 108; and each subsequent tooth increases by three numbers in sequence until tooth 120 threaded through 328, 329, and 330. A total of 228 warp yarns are threaded through 76 teeth to ensure uniform warp yarn density in the middle area. Step 5: In the middle right zone, the right side of the tissue (tooth 121-134, 14 teeth, 28 warp yarns, numbered 331-358) is tucked together. In the mirror area, the 2-threading method is used, with 2 warp yarns threaded through each tooth—tooth 121 threading through 331 and 332; tooth 122 threading through 333 and 334; and each subsequent tooth increasing by 2 numbers in sequence until tooth 134 threading through 357 and 358. A total of 28 warp yarns are threaded through 14 teeth, forming a structural balance with the weave on the left side. Step 6: Coordinated control of weft insertion, weft beating, and winding Weft insertion system: It adopts a reed arc and conjugate wheel or an air-jet loom equipped with an electronic multi-arm shedding mechanism (response time ≤0.01s), main nozzle pressure 0.55±0.01MPa, auxiliary nozzle pressure 0.4±0.01MPa, weft insertion time and shedding time are synchronized at the millisecond level (through encoder closed-loop control), the weft yarn flight trajectory is absolutely straight, avoiding weft yarn bending that causes the webbing to not lie flat; Weft insertion mechanism: adopts a servo weft insertion system with a weft insertion force of 850-950N (adjusted in sections according to the position of the webbing, 950N for the edge and 850N for the middle), and a weft insertion time of 185±1° (main shaft angle), ensuring uniform interlacing density of weft yarn and warp yarn and an absolutely flat webbing surface; The take-up system uses an air-cushioned elastic pressure roller (pressure 0.25±0.01MPa) with a take-up tension of 160±2N. During take-up, the lateral tension distribution difference of the webbing is ≤5N (monitored by multiple tension sensors), ensuring that the webbing is wrinkle-free and free from stretching deformation during take-up, achieving absolute conformity. Step 7: Precision control of the overlock system Overlocking mechanism: A CNC overlocking device is adopted, with an overlocking stitch pitch error of ≤0.05mm, an overlocking yarn tension difference of ≤1cN between the overlocking yarn tension and the weft yarn tension, and a thickness difference of ≤0.02mm between the edge of the webbing and the main body after overlocking, ensuring that the webbing is flat and smooth with no edge protrusions.

[0027] Trial weaving verification and process solidification 1. Ultra-precision trial weaving inspection a. A trial weave of 1000m was conducted, and the surface flatness of the webbing was tested using a 3D optical profilometer (Ra≤0.8μm), the thickness uniformity was tested using a laser thickness gauge (0.34±0.01mm), and the overlock strength was tested using a tensile testing machine (10±1N at 5% elongation, 30±3N at 10% elongation) to ensure that all indicators far exceeded the standards.

[0028] b. Comparative experiment: Compared with the traditional process, the flatness error of the webbing is reduced by 90% and the conformity score (according to ASTM D1388 standard) is improved to level 5 (the highest level).

[0029] 2. Process parameter solidification and intelligent monitoring - Establish a digital twin process model to convert all equipment parameters, tension values, and time nodes into digital codes. Equip the loom with an AI vision inspection system (checking flatness every 0.5m) and adjust process parameters in real time to ensure consistent flatness and conformity of the webbing during mass production.

[0030] Post-treatment (impregnation with flame retardant + high-temperature setting) - Impregnation with flame retardant liquid: flame retardant concentration 15%, roll-off rate 70%, ensuring long-lasting flame retardant performance.

[0031] - High temperature setting: 180℃×30min, after setting the webbing thickness is 0.32±0.02mm, the width is 55±0.1mm, and the horizontal straightness is ≤0.1mm (meeting the conformity requirements of the panoramic sunroof shading curtain).

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A webbing characterized by, The left side area (1) includes six groups of left yarns (11), and the first weft yarn (41) is sequentially woven above the first group of left yarns (11), above the second group of left yarns (11), below the third group of left yarns (11), above the fourth group of left yarns (11), below the fifth group of left yarns (11), and above the sixth group of left yarns (11) from a group of left yarns (11) close to the middle area (3). The second weft yarn (42) is sequentially woven below the first group of left yarns (11), above the second group of left yarns (11), above the third group of left yarns (11), below the fourth group of left yarns (11), above the fifth group of left yarns (11), and below the sixth group of left yarns (11) from a group of left yarns (11) close to the middle area (3).

2. The webbing of claim 1, wherein: The third weft yarn (43) is sequentially woven above the first group of left yarns (11), below the second group of left yarns (11), above the third group of left yarns (11), above the fourth group of left yarns (11), below the fifth group of left yarns (11), and above the sixth group of left yarns (11) from a group of left yarns (11) close to the middle area (3).

3. The webbing of claim 2, wherein: The fourth weft yarn (44) is sequentially woven above the first group of left yarns (11), above the second group of left yarns (11), below the third group of left yarns (11), above the fourth group of left yarns (11), above the fifth group of left yarns (11), and below the sixth group of left yarns (11) from a group of left yarns (11) close to the middle area (3). The fifth weft yarn (45) is sequentially woven below the first group of left yarns (11), above the second group of left yarns (11), above the third group of left yarns (11), below the fourth group of left yarns (11), above the fifth group of left yarns (11), and above the sixth group of left yarns (11) from a group of left yarns (11) close to the middle area (3). The sixth weft yarn (46) is sequentially woven above the first group of left yarns (11), below the second group of left yarns (11), below the third group of left yarns (11), above the fourth group of left yarns (11), below the fifth group of left yarns (11), and below the sixth group of left yarns (11) from a group of left yarns (11) close to the middle area (3). ​ ​ The sixth weft yarn (46) is knitted above the first group of left yarns (11), above the second group of left yarns (11), below the third group of left yarns (11), above the fourth group of left yarns (11), above the fifth group of left yarns (11) and below the sixth group of left yarns (11) in turn from a group of the left yarns (11) near the middle region (3).

4. The webbing of claim 3, wherein: The right region (2) comprises six groups of right yarns (21), the first weft yarn (41) is knitted below the first group of right yarns (21), below the second group of right yarns (21), above the third group of right yarns (21), above the fourth group of right yarns (21), below the fifth group of right yarns (21) and below the sixth group of right yarns (21) in turn from a group of the right yarns (21) near the middle region (3); The second weft yarn (42) is knitted below the first group of right yarns (21), below the second group of right yarns (21), above the third group of right yarns (21), above the fourth group of right yarns (21), below the fifth group of right yarns (21) and above the sixth group of right yarns (21) in turn from a group of the right yarns (21) near the middle region (3); The third weft yarn (43) is knitted above the first group of right yarns (21), above the second group of right yarns (21), below the third group of right yarns (21), below the fourth group of right yarns (21), above the fifth group of right yarns (21) and above the sixth group of right yarns (21) in turn from a group of the right yarns (21) near the middle region (3); The fourth weft yarn (44) is knitted above the first group of right yarns (21), above the second group of right yarns (21), below the third group of right yarns (21), below the fourth group of right yarns (21), above the fifth group of right yarns (21) and above the sixth group of right yarns (21) in turn from a group of the right yarns (21) near the middle region (3); The fifth weft yarn (45) is knitted below the first group of right yarns (21), below the second group of right yarns (21), above the third group of right yarns (21), above the fourth group of right yarns (21), below the fifth group of right yarns (21) and below the sixth group of right yarns (21) in turn from a group of the right yarns (21) near the middle region (3); The sixth weft yarn (46) is knitted below the first group of right yarns (21), below the second group of right yarns (21), above the third group of right yarns (21), above the fourth group of right yarns (21), below the fifth group of right yarns (21) and above the sixth group of right yarns (21) in turn from a group of the right yarns (21) near the middle region (3).

5. The webbing of claim 4, wherein: The left yarns (11) and the right yarns (21) are 50D fine yarns, the first warp yarn (301) and the second warp yarn (302) are mixed from 75D polyester yarn and 40D spandex yarn, and the first weft yarn (41), the second weft yarn (42) and the third weft yarn (43) are 100D polyester yarn.

6. The webbing of claim 5, wherein: The number of the first warp yarn (301) and the second warp yarn (302) in the left middle area (31) is 64, the number of the first warp yarn (301) and the second warp yarn (302) in the central area (32) is 228, and the number of the first warp yarn (301) and the second warp yarn (302) in the right middle area (33) is 28.

7. A method of manufacturing the webbing according to claim 6, characterized by: It comprises the following steps: Step one, warp yarns are sequentially inserted according to 4 areas, the number is continuously increased from 1 to 358 without break or repetition, and the law of "tooth position corresponding to the number of inserted yarns and area symmetry matching" is strictly followed to ensure the process requirements of the machine width of 57.0±0.05mm and the reed number of 235 teeth / 10cm; Step two, left area (1) and right area (2): edge organization area (divided into left and right sides, a total of 12 teeth, 38 warp yarns, numbered 1-38) Left area (1) (tooth 1-6): 3 warp yarns are inserted per tooth in order, tooth 1 inserts 1, 2, 3; tooth 2 inserts 4, 5, 6; tooth 3 inserts 7, 8, 9; tooth 4 inserts 10, 11, 12; tooth 5 inserts 13, 14, 15; tooth 6 inserts 16, 17, 18, a total of 18 warp yarns.

8. Right area (2) (tooth 7-12): 3 warp yarns are inserted per tooth in tooth 7-11, and 2 warp yarns are inserted in tooth 12--tooth 7 inserts 19, 20, 21; tooth 8 inserts 22, 23, 24; tooth 9 inserts 25, 26, 27; tooth 10 inserts 28, 29, 30; tooth 11 inserts 31, 32, 33; tooth 12 inserts 34, 35, 36, 37, 38 (2 additional), a total of 20 warp yarns; Step three, left middle area (31): left ground organization (tooth 13-44, 32 teeth, 64 warp yarns, numbered 39-102) 2 warp yarns are inserted per tooth, and are inserted in order--tooth 13 inserts 39, 40; tooth 14 inserts 41, 42; the subsequent teeth are sequentially increased by 2 numbers until tooth 44 inserts 101, 102, 32 teeth insert a total of 64 warp yarns, and the method is mirror-symmetric with area 4; Step four, central area (32) middle alternating area (tooth 45-120, 76 teeth, 228 warp yarns, numbered 103-330) 3 warp yarns are inserted per tooth, and are inserted in order--tooth 45 inserts 103, 104, 105; tooth 46 inserts 106, 107, 108; the subsequent teeth are sequentially increased by 3 numbers until tooth 120 inserts 328, 329, 330, 76 teeth insert a total of 228 warp yarns, ensuring uniform warp density in the middle area; Step five, right middle area (33) right ground organization (tooth 121-134, 14 teeth, 28 warp yarns, numbered 331-358) Mirror area 2, 2 warp yarns are inserted per tooth--tooth 121 inserts 331, 332; tooth 122 inserts 333, 334; the subsequent teeth are sequentially increased by 2 numbers until tooth 134 inserts 357, 358, 14 teeth insert a total of 28 warp yarns, forming structural balance with the left ground organization; Step six, coordinated control of weft insertion, beating-up and winding Weft insertion system: using reed arc and conjugate wheel or jet loom equipped with electronic multi-arm shedding mechanism (response time ≤0.01s), main nozzle pressure 0.55±0.01MPa, auxiliary nozzle pressure 0.4±0.01MPa, weft insertion time and shedding time millisecond level synchronization (through encoder closed loop control), weft flying trajectory absolute straight line, avoid weft bending leading to weaving tape not close; Beating-up mechanism: using servo beating-up system, beating-up force 850-950N (segmented adjustment according to the position of the tape, edge beating-up force 950N, middle 850N), beating-up time 185±1° (main shaft angle), ensure the interlacing density of weft and warp is uniform, tape surface is absolutely flat; Winding system: winding roller uses air bag type elastic pressure roller (pressure 0.25±0.01MPa), winding tension 160±2N, tape transverse tension distribution difference during winding process ≤5N (monitored by multi-section tension sensor), ensure no wrinkle and no tensile deformation when winding, realize absolute close Step seven, precise control of the locking system Locking mechanism: using numerical control locking device, locking needle spacing error ≤0.05mm, locking thread tension and weft tension difference ≤1cN, tape edge thickness difference after locking ≤0.02mm after locking, ensure the overall flatness of the tape, no edge protrusion.

9. The tape according to any one of claims 1-6 is applied in the side edge covering of the openable sunshade curtain of the automobile roof window and the sunshade curtain of the automobile roof.

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