A double-layer structure anti-cutting fabric and a preparation method and application thereof

Abstract

The present application relates to the technical field of protective fabric, in particular to a double-layer structure anti-cutting fabric, a preparation method and application thereof, comprising adjacent inner layer and outer layer, the inner layer and the outer layer are both double-sided fabric, the inner layer and the outer layer are both anti-cutting layer on one side, the inner layer is skin-friendly layer on the side away from the outer layer, the outer layer is functional layer on the side away from the inner layer, the inner layer and the outer layer are connected on one side through a connecting layer, and the connecting layer is single-sided structure. The double-layer structure anti-cutting fabric provided by the present application is in cylindrical structure, which reduces the front and back piece cutting and sewing process when the double-layer structure anti-cutting fabric is used to prepare clothes, avoids the problem of thick and hard side seam of the anti-cutting clothes, and improves the wearing experience of the user; the anti-cutting layers are all located inside, the wear-resistant layer and the skin-friendly layer are both made of wear yarn, and good comfort and concealment of the anti-cutting function are achieved.

Description

Technical Field

[0001] This invention relates to the field of protective fabric technology, and in particular to a double-layer cut-resistant fabric, its preparation method, and its application. Background Technology

[0002] Cut-resistant clothing offers protection against cuts, slashes, stabs, and scratches from sharp objects. It is also abrasion-resistant and theft-proof. When wearing cut-resistant clothing, it protects the wearer from injury in the event of abrasion, cuts, slashes, scrapes, or scratches from sharp objects. It is suitable for use in situations where there is a risk of cuts.

[0003] Traditional cut-resistant clothing mainly includes knitted cut-resistant clothing, wire mesh cut-resistant clothing, and multi-layered fabric composite cut-resistant clothing. While wire mesh cut-resistant clothing offers good cut protection, it is heavy and uncomfortable, making it unsuitable for prolonged wear. Multi-layered fabric composite cut-resistant clothing, using double or multiple layers of stacked fabric, tends to result in an excessively thick overall fabric, primarily in the form of a tie-up coat or apron, offering poor flexibility, breathability, and comfort. Existing knitted cut-resistant clothing, although offering good cut resistance, often results in thick, stiff seams at the seams due to the need for further stacking of fabric, negatively impacting the wearing experience. Furthermore, commonly used cut-resistant materials lack good wearability; placing them on the outer layer of double-layered cut-resistant fabrics means that the garment's function is often visible, failing to achieve visual concealment. Therefore, a new type of knitted cut-resistant fabric is needed that not only offers high cut resistance but also possesses additional functionalities such as abrasion resistance, excellent breathability, and provides a comfortable wearing experience when used to create cut-resistant clothing. Summary of the Invention

[0004] The purpose of this invention is to provide a double-layer cut-resistant fabric with good overall integrity, which not only provides a comfortable wearing experience, but also achieves the concealed cut-resistant function.

[0005] Another objective of this invention is to provide a method for preparing a double-layer cut-resistant fabric.

[0006] This invention provides a double-layer cut-resistant fabric, comprising an adjacent inner layer and an outer layer, both of which are double-sided fabrics. The adjacent side of the inner and outer layers is a cut-resistant layer, the side of the inner layer away from the outer layer is a skin-friendly layer, and the side of the outer layer away from the inner layer is a functional layer. The inner and outer layers are connected by a connecting layer, which is a single-sided structure.

[0007] The connecting layer features a single-sided structure, ensuring a smaller bending angle at the fold when the fabric is folded, resulting in a better garment appearance. The connecting layer uses the same type of yarn as the functional layer, but finer yarn, making weaving easier and ensuring a thinner thickness after folding, thus improving the wearing experience.

[0008] Preferably, both the inner layer and the outer layer are cylindrical structures, and the length of the connecting layer is 2-10 cm.

[0009] Preferably, the two adjacent cut-resistant layers have a plain knit front structure. The plain knit front structure has high flatness, and this structure allows the inner and outer layers to have a lower coefficient of friction and restraining force during slippage, enabling the two fabric layers to slip smoothly and enhancing the overall cut-resistant performance of the double-layer cut-resistant fabric of the present invention.

[0010] Preferably, the cut-resistant layer uses yarn selected from one of the following: ultra-high molecular weight polyethylene, aramid, poly(p-phenylene benzodioxazole) fiber, metal wire, carbon fiber, basalt fiber, boron yarn, and glass fiber; or a covering yarn made from one or more of the above yarns. Preferably, ultra-high molecular weight polyethylene is used as the material on both sides of the friction interface, which can further reduce the coefficient of friction and restraint between the inner and outer fabric layers, improving the cut-resistant performance of the double-layer cut-resistant fabric. Using multiple yarns from the above selections to prepare the covering yarn can enhance the cut-resistant performance of the yarn. Other auxiliary materials such as polyester and spandex can also be added to the covering yarn as needed.

[0011] Preferably, the functional layer includes one of a wear-resistant layer, a flame-retardant layer, and a comfort layer. The functional layer may include multiple functions simultaneously, and may also include functions such as waterproofing.

[0012] Preferably, the yarn used in the wear-resistant layer includes one of nylon and its covered yarn;

[0013] The flame-retardant layer uses yarns including aramid, poly(p-phenylene benzodioxazole) fiber, polyimide, and one or more of the covering yarns made from the above yarns;

[0014] The yarn used in the comfort layer includes one or more of polyester and polyethylene.

[0015] Preferably, the skin-friendly layer is made of clothing yarn, including cotton, lyocell, and modal.

[0016] Preferably, the inner layer and the outer layer are woven using one of the following methods: double-sided air layer with tuck loop connection and double-sided pique knitting. Both double-sided air layer with tuck loop connection and double-sided pique knitting belong to double-sided seamless weft knitting methods, and the resulting fabric consists of two sides connected by connecting lines.

[0017] This invention also provides a method for preparing a double-layer cut-resistant fabric, comprising the following steps:

[0018] S1. A cylindrical fabric is woven using a double-sided seamless circular knitting machine. The cylindrical fabric consists of an inner layer, a connecting layer, and an outer layer. The inner layer and the outer layer are connected by a connecting layer. In the double-sided fabric woven from the inner and outer layers, the cut-resistant layer and the functional layer of the inner layer are connected by a loop-knitting method, and the cut-resistant layer and the skin-friendly layer of the outer layer are connected by a loop-knitting method. The connecting layer adopts a single-sided plain knitting structure.

[0019] S2. After the fabric comes off the machine, the inner layer is folded into the cylinder until it is folded in half with the outer layer. The connecting layer serves as the fold, resulting in a double-layer cut-resistant fabric.

[0020] The cylindrical fabric circumference matches the chest circumference required for the cut-resistant garment, reducing the front and back panel cutting and sewing process during garment production. Cutting is only required at the armholes and front and back necklines of the double-layer cut-resistant fabric. The side seams connecting the traditional front and back panels do not need to be cut or sewn, resulting in smoother side seams and effectively improving the comfort of the cut-resistant garment.

[0021] This invention also provides the application of double-layer cut-resistant fabric in the field of cut-resistant clothing.

[0022] Beneficial effects:

[0023] The double-layer cut-resistant fabric provided by this invention has a cylindrical structure, resulting in better overall integrity. This reduces the need for front and back panel cutting and sewing processes when manufacturing garments using this fabric, avoiding the problem of thick and stiff side seams in cut-resistant clothing and improving the user's wearing experience. The cut-resistant layers in the double-layer cut-resistant fabric are all located internally, making them difficult to observe and achieving good comfort and concealed cut-resistant function. This invention allows for the selection of the type of functional layer in the outer layer according to actual needs, enabling the achievement of different effects and enriching application scenarios. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the double-layer cut-resistant fabric folding process and the fabric cross-section under the corresponding conditions of the present invention. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Example 1

[0030] A method for preparing a double-layer cut-resistant fabric includes the following steps:

[0031] S1. A double-sided cylindrical fabric with a circumference of 100cm is woven using a 14-inch double-sided seamless circular knitting machine. The tension during weaving is 18G. The cylindrical fabric consists of an inner layer, a connecting layer, and an outer layer from one end to the other. The inner layer and the outer layer are connected by a connecting layer. The inner and outer layers are woven using a double-sided air layer and tuck stitch connection method. The cut-resistant layer and the functional layer of the inner layer are connected by tuck stitches, and the cut-resistant layer and the skin-friendly layer of the outer layer are connected by tuck stitches. The adjacent side of the inner and outer layers is a cut-resistant layer, and the adjacent side of the two cut-resistant layers has a plain knit front structure. The side of the inner layer away from the outer layer is the skin-friendly layer, and the side of the outer layer away from the inner layer is the wear-resistant layer.

[0032] The connecting layer adopts a single-sided plain needle structure and the width of the connecting layer is 2cm. Through the double-sided seamless circular knitting machine's turning needle process and the control of the yarn nozzle, the inner and outer layers are connected by a single-sided structure woven with clothing yarn, which can ensure that the fabric has a small bending radius at the bending point.

[0033] The anti-cut layer uses 480D modified ultra-high molecular weight polyethylene coated tungsten wire and two 75D polyester yarns; the wear-resistant layer uses 450D nylon yarn; the skin-friendly layer uses 16s cotton yarn; and the connecting layer uses 50D nylon yarn, the same type of yarn used in the wear-resistant layer.

[0034] S2. After the fabric comes off the machine, the inner layer is folded inwards into the cylinder until it is folded against the outer layer. The connecting layer serves as the fold point, resulting in a double-layer cut-resistant fabric. The folding flowchart is as follows: Figure 1 As shown, Figure 1 The document also shows cross-sectional diagrams of the fabric before and after folding.

[0035] Simply cut the double-layer cut-resistant fabric at the armholes on both sides and the front and back necklines. The side seams connecting the traditional front and back pieces do not need to be cut or sewn, making the side seams smoother. This will give you a cut-resistant garment with a chest circumference of 100cm, effectively improving the comfort of wearing the cut-resistant garment.

[0036] Example 2

[0037] A method for preparing a double-layer cut-resistant fabric includes the following steps:

[0038] S1. A double-sided cylindrical fabric with a circumference of 100cm is woven using a 14-inch double-sided seamless circular knitting machine. The tension during weaving is 20G. The cylindrical fabric consists of an inner layer, a connecting layer, and an outer layer from one end to the other. The inner layer and the outer layer are connected to the connecting layer via loop stitches. The inner and outer layers are double-sided fabrics woven with double-sided air layers and loop stitches. The cut-resistant layer and the functional layer of the inner layer are connected via loop stitches, and the cut-resistant layer and the skin-friendly layer of the outer layer are connected via loop stitches. The adjacent sides of the inner and outer layers are both cut-resistant layers, and the adjacent sides of the two cut-resistant layers are both plain knit front structures. The side of the inner layer away from the outer layer is the skin-friendly layer, and the side of the outer layer away from the inner layer is the flame-retardant layer.

[0039] The connecting layer adopts a single-sided plain needle structure and the width of the connecting layer is 10cm. Through the double-sided seamless circular knitting machine's turning needle process and the control of the yarn nozzle, the inner and outer layers are connected by a single-sided structure woven with clothing yarn, which can ensure that the fabric has a small bending radius at the bending point.

[0040] The cut-resistant layer uses two 480D modified ultra-high molecular weight polyethylene coated 75D polyester yarns, and the flame-retardant layer uses 300D polyimide fiber yarn. Therefore, in this embodiment, the flame-retardant layer not only has good flame-retardant properties, but also good mechanical properties and stability. The skin-friendly layer uses 24s cotton yarn, and the connecting layer uses 50D polyimide fiber, which is suitable for use in clothing.

[0041] S2. After the fabric comes off the machine, the inner layer is folded into the cylinder until it is folded in half with the outer layer. The connecting layer serves as the fold, resulting in a double-layer cut-resistant fabric.

[0042] Simply cut the double-layer cut-resistant fabric at the armholes on both sides and the front and back necklines. The side seams connecting the traditional front and back pieces do not need to be cut or sewn, making the side seams smoother. This will give you a cut-resistant garment with a chest circumference of 100cm, effectively improving the comfort of wearing the cut-resistant garment.

[0043] Example 3

[0044] A method for preparing a double-layer cut-resistant fabric includes the following steps:

[0045] S1. A double-sided cylindrical fabric with a circumference of 100cm is woven using a 14-inch double-sided seamless circular knitting machine. The tension during weaving is 20G. The cylindrical fabric consists of an inner layer, a connecting layer, and an outer layer from one end to the other. The inner layer and the outer layer are connected to the connecting layer by tuck stitches. The inner and outer layers are double-sided fabrics woven using a double-sided pique knitting method. The adjacent sides of the inner and outer layers are both cut-resistant layers. The adjacent sides of the two cut-resistant layers are both plain knit front structures. The side of the inner layer away from the outer layer is a skin-friendly layer, and the side of the outer layer away from the inner layer is a wear-resistant layer.

[0046] The connecting layer adopts a single-sided plain needle structure and the width of the connecting layer is 5cm. Through the double-sided seamless circular knitting machine's turning needle process and the control of the yarn nozzle, the inner and outer layers are connected by a single-sided structure woven with clothing yarn, which can ensure that the fabric has a small bending radius at the bending point.

[0047] The cut-resistant layer uses 400D modified ultra-high molecular weight polyethylene yarn, the wear-resistant layer uses 300D nylon yarn, the skin-friendly layer uses 100D ultra-high molecular weight polyethylene yarn which has a cooling feel and can improve the user's wearing experience in summer, and the connecting layer uses 50D nylon yarn.

[0048] S2. After the fabric comes off the machine, the inner layer is folded into the cylinder until it is folded in half with the outer layer. The connecting layer serves as the fold, resulting in a double-layer cut-resistant fabric.

[0049] Simply cut the double-layer cut-resistant fabric at the armholes on both sides and the front and back necklines. The side seams connecting the traditional front and back pieces do not need to be cut or sewn, making the side seams smoother. This will give you a cut-resistant garment with a chest circumference of 100cm, effectively improving the comfort of wearing the cut-resistant garment.

[0050] Example 4

[0051] A method for preparing a double-layer cut-resistant fabric is basically the same as the steps in Example 3, except that the cut-resistant layer uses aramid yarn and the outer functional layer is a comfort layer, which uses polyester yarn.

[0052] Comparative Example 1

[0053] A method for preparing a cut-resistant fabric includes the following steps:

[0054] The fabric is woven using a 36-inch single-sided circular knitting machine with a tension of 20G. Four layers are woven sequentially using a conventional knitting structure. The first layer uses 24s cotton yarn, the second and third layers use 400D modified ultra-high molecular weight polyethylene yarn, and the fourth layer uses 24s cotton yarn. After weaving, the four layers are overlapped and then cut and sewn to obtain a cut-resistant fabric. The seam is considered the thickest point.

[0055] Performance testing

[0056] The puncture resistance of the double-layer cut-resistant fabrics prepared in Examples 1-3 and the cut-resistant fabrics prepared in Comparative Example 1 were tested. The abrasion resistance was tested according to standard EN388, and the cut resistance was tested according to ASTM F2992. The test results are shown in Table 1.

[0057] Table 1

[0058]

[0059] The test data above shows that although the yarns selected for the functional layer and the cut-resistant layer in Examples 1-3 are different, the resulting fabrics all have excellent cut-resistant properties. When selecting the same type of yarn, the thicker the yarn, the thicker the fabric, and the better the overall cut-resistant properties of the fabric. The double-layer cut-resistant fabric prepared in Example 1 has the best cut-resistant properties. The double-layer cut-resistant fabric prepared in Example 3 has relatively weak cut-resistant properties, but it is still higher than the cut-resistant properties of the fabric obtained in Comparative Example 1. Moreover, the thickness of the double-layer cut-resistant fabrics in Examples 1-3 is much thinner than that in Comparative Example 1, resulting in a more comfortable wearing experience compared to Comparative Example 1.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-layer cut-resistant fabric, characterized in that, The double-layer cut-resistant fabric is prepared by the following method, which includes the following steps: S1. A double-sided cylindrical fabric is woven using a double-sided seamless circular knitting machine. The cylindrical fabric consists of an inner layer, a connecting layer, and an outer layer. The inner layer and the outer layer are connected by a connecting layer. In the double-sided fabric woven from the inner and outer layers, the cut-resistant layer and the functional layer of the inner layer are connected by a loop-knitting method, and the cut-resistant layer and the skin-friendly layer of the outer layer are connected by a loop-knitting method. The connecting layer adopts a single-sided plain knitting structure. S2. After the fabric comes off the machine, the inner layer is folded into the cylinder until it is folded in the same direction as the outer layer, and the connecting layer is used as the folding point to obtain a double-layer cut-resistant fabric. The double-layer cut-resistant fabric includes an adjacent inner layer and an outer layer. Both the inner and outer layers are double-sided fabrics. The adjacent side of the inner and outer layers is a cut-resistant layer. The side of the inner layer away from the outer layer is a skin-friendly layer. The side of the outer layer away from the inner layer is a functional layer. The inner and outer layers are connected by a connecting layer, which is a single-sided structure.

2. The double-layer cut-resistant fabric according to claim 1, characterized in that, Both the inner and outer layers are cylindrical structures, and the connecting layer has a length of 2-10 cm.

3. The double-layer cut-resistant fabric according to claim 1, characterized in that, The two anti-cutting layers have a flat needle-like structure on one side adjacent to each other.

4. The double-layer cut-resistant fabric according to claim 1, characterized in that, The anti-cutting layer is a covering yarn made of one or more of the following: ultra-high molecular weight polyethylene, aramid, poly(p-phenylene benzodioxazole) fiber, metal wire, carbon fiber, basalt fiber, boron yarn, and glass fiber.

5. The double-layer cut-resistant fabric according to claim 1, characterized in that, The functional layer includes one of the following: a wear-resistant layer, a flame-retardant layer, and a comfort layer.

6. The double-layer cut-resistant fabric according to claim 5, characterized in that, The abrasion-resistant layer of the garment uses yarn including nylon and its covered yarn; The flame-retardant layer uses yarns including aramid, poly(p-phenylene benzodioxazole) fiber, polyimide, and one or more of the covering yarns made from the above yarns; The yarn used in the comfort layer includes one or more of polyester and polyethylene.

7. The double-layer cut-resistant fabric according to claim 1, characterized in that, The skin-friendly layer is made of clothing yarn, including cotton, lyocell, and modal.

8. The double-layer cut-resistant fabric according to claim 1, characterized in that, The inner layer and the outer layer are woven using one of the following methods: double-sided air layer with loop connection and double-sided pique weaving.

9. The application of the double-layer cut-resistant fabric according to any one of claims 1-8 in the field of cut-resistant clothing.

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