Knit structure flexible protective function composite fabric

Abstract

The application relates to a knitted structure flexible protective function composite fabric, and relates to the field of knitted fabrics. The knitted structure flexible protective function composite fabric has moderate overall thickness, good softness and comfort, good air permeability and good protection effect; the complex steps such as sewing, pressing and hot-melt adhesive bonding in traditional post-processes are abandoned, and only the natural connection between loops and the close knitting yarn are used to realize the close combination of the double-layer structure, the design not only enhances the overall stability of the fabric, but also greatly reduces the delamination risk, so that the fabric has high overall stability while maintaining the softness; through the three-dimensional knitted structure, the functions of the inner layer and the outer layer are ingeniously fused together without complex additional processes, the simple and efficient production mode not only reduces the production cost, but also improves the production efficiency, so that the production of the fabric is more simple and easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knitted fabric, in particular to a knitted structure flexible protective functional composite fabric. BACKGROUND

[0002] The existing cut-resistant clothing fabric has some limitations in design and application. Specifically, these fabrics mainly focus on the excellence of cut-resistant performance, resulting in a stiff fabric texture that lacks the necessary softness and flexibility, which in turn affects its folding performance and wearing comfort. In practical applications, this stiff fabric not only brings a heavy and uncomfortable experience to the wearer, but also may limit the wearer's range of motion and work efficiency to some extent.

[0003] In related technologies, there are many researches on cut-resistant and wear-resistant fabrics, mainly focusing on the weaving of multi-layer material composite superposition, lamination, adhesion, etc., such as:

[0004] The patent document with publication number CN220763783U discloses a high-elasticity polyester fabric, which includes a polyester fabric, the polyester fabric includes a wear-resistant fabric layer, a breathable fabric layer, a waterproof fabric layer, a non-slip fabric layer, an elastic fabric layer, air holes, a dust-resistant and antibacterial layer, a waterproof and breathable film, and a cut-resistant fabric layer. The top surface of the polyester fabric is the cut-resistant fabric layer, the bottom surface of the cut-resistant fabric layer is fixedly provided with the wear-resistant fabric layer, the bottom surface of the wear-resistant fabric layer is fixedly provided with the breathable fabric layer, the bottom surface of the breathable fabric layer is fixedly provided with the waterproof fabric layer, the bottom surface of the waterproof fabric layer is fixedly provided with the elastic fabric layer, the bottom surface of the elastic fabric layer is fixedly provided with the dust-resistant and antibacterial layer, and the bottom surface of the dust-resistant and antibacterial layer is fixedly provided with the non-slip fabric layer. Although this technical solution can improve the anti-slip performance of the polyester fabric, the fabric has many layers and the interlayer connection is not good, and it is not durable.

[0005] The patent document with publication number CN217495468U discloses a novel cut-resistant and wear-resistant garment, which includes a fabric body, the lower surface of the fabric body is fixedly connected with a skin-friendly layer, the upper surface of the fabric body is fixedly connected with a breathable layer, the upper surface of the breathable layer is fixedly connected with a waterproof layer, the upper surface of the waterproof layer is fixedly connected with a cut-resistant layer, the cut-resistant layer is mixed with a plurality of cut-resistant ropes, and the upper surface of the cut-resistant layer is uniformly and fixedly connected with a plurality of wear-resistant blocks. Although this technical solution can resist relatively sharp or sharp structures, the fabric is stiff with multiple layers and is not suitable for long-term wearing of daily clothing, and the garment function is single and cannot face other external environments.

[0006] Therefore, the current research and development of cut-resistant clothing fabric should pursue the balance between protective performance and wearing comfort, the softness and folding degree of the fabric can support the flexible movement of the wearer, and in addition to the cut-resistant performance, other protective functions such as cold resistance, fire resistance, and water resistance should be combined, as well as other comfortable functions such as air permeability, antibacterial, and odor resistance. SUMMARY

[0007] The purpose of the present application is to provide a knitted structure flexible protective function composite fabric to solve the above-mentioned problems existing in the prior art.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0009] A knitted structure flexible protective function composite fabric, the knitted structure flexible protective function composite fabric is a three-dimensional knitted structure, the knitted structure flexible protective function composite fabric is knitted into shape by using a weft knitting process of knitting loops, and the knitted structure flexible protective function composite fabric has an outer layer, an intermediate layer and an inner layer from outside to inside.

[0010] The outer layer is knitted by using an ultrahigh molecular weight polyethylene yarn, the intermediate layer is knitted by using an elastic connecting yarn, and the inner layer is knitted by using one of a warm-keeping function yarn, an antibacterial function yarn and an odor-resistant function yarn.

[0011] In a possible implementation manner, the three-dimensional knitted structure is based on a double jacquard structure to realize knitting of the outer layer and the inner layer by introducing different yarns and forming a fabric structure with two different textures.

[0012] In a possible implementation manner, the specification range of the ultrahigh molecular weight polyethylene yarn is 200D to 600D.

[0013] In a possible implementation manner, the specification of the ultrahigh molecular weight polyethylene yarn is 350D.

[0014] In a possible implementation manner, the elastic connecting yarn is a medium elastic nylon covered yarn.

[0015] In a possible implementation manner, the number ratio of the loops of the ultrahigh molecular weight polyethylene yarn to the functional yarn is 1:1.

[0016] In a possible implementation manner, the functional yarn is a polyester fancy crochet yarn, the polyester fancy crochet yarn is a velvet yarn structure, and the velvet yarn structure includes a strand main stem and eyelash-like velvet hairs on the strand main stem.

[0017] In a possible implementation manner, the specification of the polyester fancy crochet yarn is 150D.

[0018] In a possible implementation manner, the knitted structure flexible protective function composite fabric is prepared by using a double needle bed computerized flat knitting machine or a four needle bed computerized flat knitting machine.

[0019] The technical scheme provided by the present application has at least the following beneficial effects:

[0020] (1) The knitted structure flexible protective functional composite fabric provided by the application discards the complex steps such as sewing, pressing and hot melt adhesive bonding in the traditional post-process, and realizes the close combination of the double-layer structure only through the natural connection between the loops and the close knitting yarn. This design not only enhances the overall stability of the fabric, but also greatly reduces the risk of delamination, so that the fabric has high overall performance while maintaining the softness characteristics;

[0021] (2) The knitted structure flexible protective functional composite fabric provided by the application cleverly integrates the functions of the inner layer and the outer layer through the three-dimensional knitted structure, without complex additional processes. This simple and efficient production method not only reduces the production cost, but also improves the production efficiency, making the production of the fabric more simple and easy to operate;

[0022] (3) The knitted structure flexible protective functional composite fabric provided by the application performs well in protective performance, thanks to the use of ultra-high molecular weight polyethylene yarn and the close knitting of the fabric structure. At the same time, it also has the characteristics of softness, breathability and comfort, and is very suitable for daily wear. Whether it is outdoor exploration or urban life, it can provide comprehensive protection and comfortable experience. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0024] Figure 1 The structure schematic diagram of the knitted structure flexible protective functional composite fabric provided by one example embodiment of the present application is shown;

[0025] Figure 2 The schematic diagram of the yarn used in the outer layer and the inner layer of the knitted structure flexible protective functional composite fabric provided by one example embodiment of the present application is shown;

[0026] Figure 3 The knitting process schematic diagram of the knitted structure flexible protective functional composite fabric provided by one example embodiment of the present application is shown;

[0027] Figure 4 The organization structure simulation diagram of the knitted structure flexible protective functional composite fabric provided by one example embodiment of the present application is shown;

[0028] Figure 5 The schematic diagram of the anti-cutting performance principle of the knitted structure flexible protective functional composite fabric provided by one example embodiment of the present application is shown; Figure 5 (a) is a schematic diagram of the organization structure unit loop, Figure 5 (b) is a schematic diagram of the anti-cutting performance test device, Figure 5(c) is a model diagram of the anti-cutting process simulation;

[0029] Figure 6 A model diagram of the anti-cutting performance test of the knitted structure flexible protective functional composite fabric provided by an example embodiment of the present application is shown; Figure 6 (a) is a model diagram of the unit loop cutting of the tissue structure, Figure 6 (b) is a data diagram of the anti-cutting performance test. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Wherein, the same parts are denoted by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings of the present application specification, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from a particular part. In addition, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application specification, the meaning of "multiple" is two or more.

[0032] The present application will be further described below in combination with the drawings and embodiments.

[0033] Figure 1 A structure schematic diagram of the knitted structure flexible protective functional composite fabric provided by an example embodiment of the present application is shown, Figure 2 A schematic diagram of the yarns used by the outer layer and the inner layer of the knitted structure flexible protective functional composite fabric provided by an example embodiment of the present application is shown. The knitted structure flexible protective functional composite fabric is a three-dimensional knitted structure, and the knitted structure flexible protective functional composite fabric is knitted into shape by using the knitting loop weft direction looping weaving process. The knitted structure flexible protective functional composite fabric has an outer layer 11, an intermediate layer 12 and an inner layer 13 from outside to inside, and the inner layer 13 and the outer layer 11 can realize various functional composites. Figure 1In the middle, the inner side of the inner layer 13 also includes the inner clothes 16, the skin 17. (The note also has: the schematic mark of the heat preservation function 18) Among them, the outer layer 11 is woven by the ultra-high molecular weight polyethylene yarn 21, the middle layer 12 is woven by the elastic connecting yarn 14, and the inner layer 13 is woven by one of the functional yarns of the warm-keeping functional yarn, the antibacterial functional yarn and the deodorant functional yarn.

[0034] In the embodiment of the present application, please refer to Figure 1 and Figure 2 The functional yarn of the inner layer 13 is polyester fancy crochet yarn 22, which is a pile yarn structure, including a stock line trunk and a cilia-like pile 15 on the stock line trunk.

[0035] In the embodiment of the present application, the knitted structure flexible protective functional composite fabric is produced by STOLL computerized flat knitting machine with ADF technology, the machine model is STOLL CMS ADF-3 multi gauge, the needle type is E7.2, and it has three knitting systems. The guide of the machine is independent of the head, which widens the range of yarn materials and is suitable for high-performance yarns, metal wires, etc.

[0036] In the embodiment of the present application, the outer layer 11 has the anti-cutting and wear-resistant functions against sharp cutters, and the ultra-high molecular weight polyethylene yarn 21 has excellent properties such as light weight, high strength, impact resistance and cutting resistance. The outer layer 11 is not treated with other protective function finishing agents in this embodiment. The middle layer 12 is used to enhance the close connection between the outer layer 11 and the inner layer 13.

[0037] In the embodiment of the present application, the medium elastic nylon covered yarn is selected as the elastic connecting yarn 14, which has good yarn elasticity and realizes close connection without affecting the softness of the fabric.

[0038] Figure 3 The figure shows the knitting process schematic diagram of the knitted structure flexible protective functional composite fabric provided by an exemplary embodiment of the present application, which shows the knitting row 31 of the yarn nozzle with polyester fancy crochet yarn, the knitting row 32 of the yarn nozzle with ultra-high molecular weight polyethylene yarn, and the knitting row 33 of the yarn nozzle with medium elastic nylon covered yarn. Among them, the above-mentioned three-dimensional knitted structure is based on double jacquard structure, realizes the knitting of the outer layer 11 and the inner layer 13 with different yarns, forms the fabric structure with two different textures, and the organization structure loop is closely interwoven, which is conducive to resisting cutter cutting.

[0039] In this embodiment, the front and back needle beds are configured with alternating stitches (one on top of the other). First, the first yarn feeder, carrying polyester fancy crochet yarn 22, alternates between loops and floats on the back needle bed. The second yarn feeder, carrying ultra-high molecular weight polyethylene yarn, weaves one loop on the front needle bed, then another loop on the back needle bed, and so on, until all loops are formed on the front. The third yarn feeder, carrying elastic connecting yarn 14, weaves alternately on the front and back needle beds, tightly connecting the loops of the first and second yarn feeders and adjusting the tension in the fabric thickness direction. The fourth, fifth, and sixth yarn feeders are staggered from the first, second, and third yarn feeders, respectively, creating a two-yarn dot effect on the back of the fabric, ensuring that the polyester fancy crochet yarn 22 can completely cover the inner layer of the knitted flexible protective composite fabric.

[0040] In this embodiment, the outer layer 11 is woven with 100% ultra-high molecular weight polyethylene yarn 21, ensuring excellent cut resistance and abrasion resistance. The ultra-high molecular weight polyethylene yarn 21 woven in the outer layer 11 has a yarn density of 350D, resulting in a fabric with good protective and comfortable properties. The inner layer 13 is woven with 150D polyester fancy crochet yarn 22. The ratio of the number of loops in the ultra-high molecular weight polyethylene yarn 21 to the number of loops in the polyester fancy crochet yarn 22 is 1:1.

[0041] Figure 4 This illustration shows a simulation diagram of the fabric structure of a knitted flexible protective composite fabric, provided by an exemplary embodiment of this application. The diagram shows ultra-high molecular weight polyethylene yarn 41 (i.e., Figure 2 21), medium elastic nylon-spandex coated yarn 42, and polyester fancy crochet yarn 42 (i.e. Figure 2 (22) The simulated structure diagram shows that the knitted flexible protective composite fabric has a tight structure and elastic connecting yarns to strengthen the connection between the front and back loops. The reverse side has polyester fancy crochet yarn with eyelash-like fluff 15 extending out to cover the reverse side, which is skin-friendly and warm, providing excellent heat retention.

[0042] Figure 5 This invention provides a schematic diagram illustrating the cut-resistant performance principle of a knitted flexible protective composite fabric according to an exemplary embodiment of this application. Figure 5 (a) is a schematic diagram of a unit coil of tissue structure. Figure 5 (b) is a schematic diagram of the anti-cutting performance testing device. Figure 5 (c) is a simulation diagram of the anti-cutting process; the diagram shows a front flat needle 51, a front and back four flat needles 52, a blade 53, a sample 54, a stage 55, a large coil 56, and a small coil 57.

[0043] In the knitted structure flexible protective function composite fabric, a basic unit of the structure of the ultra-high molecular weight polyethylene yarn 21 is one front plain stitch 51 plus one front and back four plain stitch 52. Since the front and back four plain stitch 52 is formed in two needle beds, the stitch length of the elastic connecting yarn 14 is controlled to be smaller than that of the ultra-high molecular weight polyethylene yarn 21 by adjusting the machine parameters during the machine knitting, so that the stitch size of the loop formed by the front and back four plain stitch 51 is obviously smaller than that of the front plain stitch 51.

[0044] Similarly, in the thickness direction, the small loop (front and back four plain stitch 52) is lower than the height of the large loop (front plain stitch 51). The garment fabric is not flat when worn on the body, but is arched like the outer surface of a cylinder. The knitted structure flexible protective function composite fabric is also the same on the cutting resistance test bench. In the test device, the sample 54 is placed on the arched sample stage 55 of a half cylinder, and the blade 53 is placed above the sample 54 to perform the cutting action.

[0045] From a microscopic point of view, if the loop size of the fabric is consistent and the height is the same, a loop is represented as a rectangle. Then its placement state is as shown in Figure 5 (c) the left U shows a large loop 56 of normal size. The placement state of the knitted structure flexible protective function composite fabric is as shown in Figure 5 (c) the right V shows a small loop 57 after being stretched. The fabric is cut by the blade 53, and in fact the yarn is resisting the normal (vertically downward) cutting force. When the blade 53 cuts the fabric with a certain load, U shows that one loop is cut by the blade 53, and V shows that three loops are cut by the blade 53, which greatly increases the contact area of the yarn with the blade 53 and improves the cutting resistance of the fabric. Therefore, the knitted structure flexible protective function composite fabric increases the number of loops of the fabric under the cutting length of the blade 53 through special structural design. In addition, the ultra-high molecular weight polyethylene yarn 21 is looped on both sides of the fabric, so even if the loop on the front side is broken, the loop on the next layer can continue to resist the further horizontal and normal cutting of the blade 53.

[0046] Figure 6 a cutting resistance performance test diagram of the knitted structure flexible protective function composite fabric provided by an example embodiment of the application is shown; Figure 6 (a) is a unit loop cutting model diagram of the organizational structure, Figure 6 (b) is a cutting resistance performance test data diagram. The diagram shows a blade model 61, a unit loop side 62, a loop 63 cut by the blade in the direction of 0° from the X axis to the Y axis, a loop 64 cut by the blade in the direction of 45° from the X axis to the Y axis, a loop 65 cut by the blade in the direction of 90° from the X axis to the Y axis, and a loop 66 cut by the blade in the direction of 110° from the X axis to the Y axis (i.e. along the loop column direction).

[0047] The cutting mode of the blade 53 with the weft direction loop knitted fabric mainly has weft direction, warp direction and oblique direction. From the unit loop, when cutting along the weft direction, the blade 53 falls on the loop column to a great extent, which shows the cutting of the loop column. Since the thickness of the blade 53 is much smaller than the yarn thickness, when cutting along the warp direction, the blade 53 falls on the needle knitting arc and the sinking arc or between two loop columns to a great extent. It should be noted that the knitted loop is a three-dimensional structure, as can be seen from the unit loop side 62, the needle knitting arc and the sinking arc of the loop are concave, and the loop column is convex. Therefore, it is the main bearing object of the cutting of the blade 53. In addition, the cutting of the blade 53 on the knitted fabric is actually the cutting of the yarn, and the yarn provides resistance to the sliding of the blade 53. In other words, the cutting contact area of the blade 53 and the yarn greatly affects the cutting resistance of the fabric. Therefore, an X-Y axis coordinate system is established, in which the length of the blade model 61 is L1, the blade 53 cuts the loop at an angle of 0°, 90°, 45° and 110° with the X axis to simulate four typical cutting modes 63, 64, 65 and 66 in the weft direction, the warp direction and the oblique direction, and the dark line segment represents the cutting contact area with the loop. It can be seen that the contact area of the oblique directions 64 and 66 is larger, and the cutting resistance is high. This can also be verified in the experimental test results.

[0048] The relationship between the cutting load and the cutting distance is obtained by testing the cutting resistance of the knitted structure flexible protective functional composite fabric, and the regression line and the calculated cutting load are also obtained. Among them, the warp direction cutting load of the knitted structure flexible protective functional composite fabric is the smallest, reaching 2145gf, reaching A4 level cutting grade, which can meet the moderate cutting danger; the weft direction cutting load reaches 2347gf, reaching A5 level cutting grade, which can meet the high cutting danger; the oblique direction cutting load is the largest, reaching 2364gf, reaching A5 level cutting grade, which can meet the high cutting danger. Therefore, the cutting resistance of the knitted structure flexible protective functional composite fabric is excellent, and it can basically meet the high cutting danger. On the other hand, the polyester fancy hook knitting yarn 22 selected by the knitted structure flexible protective functional composite fabric has rich fluffy yarn 15, which can effectively capture air and significantly improve the thermal insulation capacity of the fabric. In addition, the middle layer 12 composed of elastic connecting yarn 14 can be regarded as an air layer, which can store air to increase the thermal resistance and realize excellent cold-proof and warm-keeping performance.

[0049] Next, the performance of the knitted structure flexible protective functional composite fabric provided in the above embodiment of the application is tested. Fabric thickness: YG(B) 141D digital fabric thickness meter, in accordance with GB / T 3820-1997 "Determination of thickness of textiles and textile products", the results are averaged; square meter gram weight: using a precision electronic balance, in accordance with GB / T 4669-2008 "Determination of mass per unit length and mass per unit area of knitted fabrics", the results are averaged; abrasion resistance: using a Martindale instrument, the total number of fabric abrasion times is obtained, and the average value is taken; cutting resistance: using a TDM100 cutting resistance tester, in accordance with ANSI / ISEA 105-2016 cutting resistance standard, the fabric is cut tested, 5 points are taken in each of the 5mm-20mm, 20mm-33mm, and 33mm-50.8mm intervals of the knife sliding distance, all data are subjected to inverse linear regression analysis, and finally the cutting force required when the fabric is cut to break, with the knife sliding distance of 20mm, is taken as the rating standard; thermal insulation performance: YG606 thermal resistance and moisture resistance tester, in accordance with GB / T 11048-2008 "Determination of thermal resistance and moisture resistance of textiles under physiological comfort conditions", the results are averaged; flexibility: YG207 automatic fabric stiffness tester, in accordance with GB / T 18318.1-2009 "Determination of bending properties of textiles Part 1: Inclined plane method"; air permeability: YG1997E-III automatic air permeability tester, in accordance with GB / T 5453-1997 "Determination of air permeability of textile fabrics", the results are averaged.

[0050] The specific test results are shown in the following table:

[0051] Test sample Example Thickness (mm) 2.08 square meters of film per gram (g / m 2 )]]> 523.6 Total number of abrasion resistance (round) ＞100000 Oblique cutting resistance load (gf) 2364 Oblique cutting resistance grade A5 Oblique cutting resistance danger High Thermal resistance (m 2 K / W) 0.0844 Heat retention rate (%) 53.55％ Crock value 0.545 Heat transfer coefficient (W / m 2 ·°C) 11.94 Warp stiffness (mN-cm) 10.87 Weft stiffness (mN-cm) 12.63 Air permeability (mm / s) 146.31

[0052] From the test data in the above table, it can be seen that the knitted structure flexible protective functional composite fabric provided in the embodiment has a thickness of 2.08mm, a square meter gram weight of 523.6g / m 2 , an abrasion total number of more than 100000 times, an oblique cutting load of 2364gf, an oblique cutting resistance grade of A5 level, a thermal resistance of 0.0844m 2 ·K / W, a heat retention rate of 53.55%, a clo value of 0.545, a heat transfer coefficient of 11.94W / m 2 ·℃, a warp stiffness of 10.87mN·cm, a weft stiffness of 12.63mN·cm, and an air permeability of 146.31mm / s.

[0053] It is illustrated that the fabric provided by the embodiment has moderate thickness, good wear resistance of the outer layer, and reaches A5 level of cutting resistance (A1 level for cutting resistance greater than or equal to 200 gf; A2 level for cutting resistance greater than or equal to 500 gf; A3 level for cutting resistance greater than or equal to 1000 gf; A4 level for cutting resistance greater than or equal to 1500 gf; A5 level for cutting resistance greater than or equal to 2200 gf; A6 level for cutting resistance greater than or equal to 3000 gf; A7 level for cutting resistance greater than or equal to 4000 gf; A8 level for cutting resistance greater than or equal to 5000 gf; and A9 level for cutting resistance greater than or equal to 6000 gf), meets high cutting risk (A1 level meets very small cutting, A2 and A3 levels meet small cutting, A4 level meets moderate cutting risk, A5 and A6 levels meet high cutting risk, A7 and A8 levels meet very high cutting risk, and A9 level meets the highest cutting risk), has excellent warmth retention (the greater the thermal resistance, heat retention rate and cro value, the smaller the heat transfer coefficient, and the better the warmth retention), and the fabric is very soft, comfortable and breathable, the weft stiffness is only a single digit, and the air permeability is 146.31 mm / s (the weft stiffness of high-density anti-cutting woven fabric on the market is greater than 843.21 mN cm, and the air permeability is less than 10 mm / s).

[0054] In summary, the knitted structure flexible protective functional composite fabric provided by the application has moderate overall thickness, good softness and comfort, good air permeability, and good protection effect; the complex steps such as sewing, pressing and hot melt adhesive bonding in the traditional post-process are abandoned, and the close combination of the double-layer structure is realized only through the natural connection between the loops and the close knitting of the yarn, which not only enhances the overall stability of the fabric, but also greatly reduces the risk of delamination, so that the fabric has high overall stability while maintaining the softness; the functionality of the inner layer and the outer layer is ingeniously integrated through the three-dimensional knitted structure, without complex additional processes, and this simple and efficient production method not only reduces the production cost, but also improves the production efficiency, so that the production of the fabric is more simple and easy to operate; the knitted structure flexible protective functional composite fabric has excellent protection performance, thanks to the use of ultra-high molecular weight polyethylene yarn and the close knitting of the fabric structure, and also has the characteristics of softness, air permeability and comfort, which is very suitable for daily wear and can provide all-round protection and comfortable experience for outdoor exploration and urban life.

[0055] The above only describes the preferred embodiments of the application, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the application, and these improvements and refinements should also be considered as the protection scope of the application.

Claims

1. A knitted structure flexible protective functional composite fabric, characterized in that, The knitted structure flexible protection function composite fabric is a three-dimensional knitted structure, the knitted structure flexible protection function composite fabric is knitted by adopting a weft knitting process of a knitted loop, and the knitted structure flexible protection function composite fabric comprises, from outside to inside, an outer layer, an intermediate layer and an inner layer. The outer layer is knitted by using an ultra-high molecular weight polyethylene yarn, the intermediate layer is knitted by using an elastic connecting yarn, and the inner layer is knitted by using one of a warm-keeping functional yarn, an antibacterial functional yarn and an odor-resistant functional yarn. A 1-by-1 interlacing needle configuration is used, a first yarn nozzle is arranged to alternately form a loop and a float on the reverse needle bed, a second yarn nozzle is arranged to knit one loop on the front needle bed, then knit one loop on the reverse needle bed, and then knit one loop on the front needle bed, and the process is repeated in this way to form loops on the front side, a third yarn nozzle is arranged to interlacing knit on the front and reverse needle beds to tightly connect the loops of the first and second yarn nozzles, and a fourth, fifth and sixth yarn nozzle are arranged to be staggered with the first, second and third yarn nozzles to knit to form two kinds of sesame point effects on the back of the fabric. The basic unit of the knitted structure flexible protection function composite fabric comprises one front plain needle and one front and reverse four plain needle, and the size of the loop formed by the front and reverse four plain needle is obviously smaller than the size of the loop formed by the front plain needle.

2. The knitted structural flexible protective functional composite fabric according to claim 1, wherein, The three-dimensional knitted structure is based on a double-sided jacquard structure to realize knitting of the outer layer and the inner layer by introducing different yarns to form a fabric structure with two different textures.

3. The knitted structural flexible protective functional composite fabric according to claim 1, wherein, The specification of the ultra-high molecular weight polyethylene yarn ranges from 200D to 600D.

4. The knitted structural flexible protective functional composite fabric according to claim 3, wherein, The specification of the ultra-high molecular weight polyethylene yarn is 350D.

5. The knitted structural flexible protective functional composite fabric according to claim 1, wherein, The elastic connecting yarn is a medium-elasticity nylon covered yarn.

6. The knitted structural flexible protective functional composite fabric according to claim 1, wherein, The number ratio of the loops of the ultra-high molecular weight polyethylene yarn to the functional yarn is 1:

1.

7. The knitted structural flexible protective functional composite fabric according to claim 1, wherein, The functional yarn is a polyester fancy crochet yarn, the polyester fancy crochet yarn is a pile yarn structure, and the pile yarn structure comprises a strand trunk and eyelash-like pile on the strand trunk.

8. The knitted structural flexible protective functional composite fabric according to claim 7, wherein, The specification of the polyester fancy crochet yarn is 150D.

9. The knitted structural flexible protective functional composite fabric according to claim 1, wherein, The knitted structure flexible protection function composite fabric is prepared by using a double-needle bed computerized flat knitting machine or a four-needle bed computerized flat knitting machine.

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