Low-extensibility composite fabric

Abstract

The utility model discloses a low-extensibility composite fabric which comprises a surface-layer woven fabric, a hot melt adhesive film and a bottom-layer woven fabric, the surface-layer woven fabric and the bottom-layer woven fabric are formed by interweaving low-extension yarns; a first sewing track and a second sewing track which are formed by sewing low-extensibility yarns are arranged on the hot melt adhesive film; the first sewing track and the second sewing track have opposite inclined directions. According to the low-extensibility composite fabric, the surface layer woven fabric and the bottom layer woven fabric provide acting force for limiting extension in the warp and weft directions for the composite fabric, the middle film layer provides acting force for limiting extension in the inclined direction, the overall extensibility of the fabric is low, and the fabric is not prone to pulling deformation. The hot melt adhesive film is used for hot-pressing compounding, the composite fabric is not prone to layering and loosening and soft in hand feeling, and the hot melt adhesive film layer does not affect the fabric styles of the surface layer fabric and the bottom layer fabric.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of low extension composite fabric, belong to composite fabric technical field. BACKGROUND

[0002] At present, with the improvement of living standards, people's requirements for textile fabric are higher and higher, especially in the application field of backpack, vamp and clothing, the fabric is required to have low ductility in all directions and soft hand feeling. But due to the limitation of weaving principle of textile equipment, it is difficult to realize low extension in oblique direction for single-layer fabric, and low extension can only be realized in warp and weft direction for woven fabric, but there is no supporting force in oblique direction, which is easy to deform. Knitted fabric usually has good extension, and low extension can only be realized in warp or weft direction. In the aspect of composite fabric, the low extension effect of the fabric of the prior art is poor, the fabric hand feeling is rough, rigid, and the process is complex.

[0003] Patent document 1 (publication number CN 221187719 U) discloses a composite glass fiber cloth, which comprises a first tensile layer, a first oblique weaving layer, a glass fiber layer, a second oblique weaving layer and a second tensile layer from bottom to top. But the glass fiber layer and the oblique weaving layer of this method are knitted structure, which has good knitting extension and is easy to deform; and the use of ultrasonic wave reinforcement has low firmness.

[0004] Patent document 2 (publication number CN 213383361 U) discloses a multi-axial sandwich glass fiber felt, which is provided with a first oblique glass fiber roving layer between the warp glass fiber unidirectional cloth and the non-woven core material layer, and a second oblique glass fiber roving layer between the weft glass fiber unidirectional cloth and the non-woven core material layer; and is sewn by ultrahigh molecular weight polyethylene filament, but the low extension effect of the fabric of this method is poor, and the use of ultrahigh molecular weight polyethylene filament has great influence on fabric surface effect, color and hand feeling.

[0005] Therefore, it is urgent to prepare a composite fabric with low extension in all directions and soft hand feeling. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of low extension composite fabric, and low extension effect is good, and it is not easy to deform under stress, and hand feeling is soft.

[0007] To solve the above technical problems, the purpose of the utility model is realized as follows:

[0008] The utility model relates to a kind of low extension composite fabric, including surface layer woven fabric, hot melt adhesive film and bottom layer woven fabric;

[0009] The surface layer woven fabric and the bottom layer woven fabric are interwoven by low extension yarns;

[0010] The first sewing track and the second sewing track are formed by low-elongation yarns arranged on the hot melt adhesive film.

[0011] The first sewing track and the second sewing track have opposite inclination directions.

[0012] As a preferred solution of the above solution, the first sewing track and the second sewing track are left-right axis symmetrical.

[0013] As a preferred solution of the above solution, the low-elongation yarns are one of cotton yarn, wool yarn, hemp yarn, polyester, nylon, polypropylene, polyethylene fiber and aramid fiber.

[0014] As a preferred solution of the above solution, the hot melt adhesive film is one of EVA, PA, PES, PP and TPU.

[0015] As a preferred solution of the above solution, the interval between two adjacent first sewing tracks and the interval between two adjacent second sewing tracks are both not greater than 5 cm.

[0016] As a preferred solution of the above solution, the first sewing track and the second sewing track have an angle of 30-60° with the weft yarns in the surface layer of the woven fabric.

[0017] The low-elongation composite fabric has the following advantages: (1) the surface layer and the bottom layer of the woven fabric provide the force for limiting the extension in the warp and weft directions, and the middle film layer provides the force for limiting the extension in the oblique direction, so that the overall extension of the fabric is low and the fabric is not easy to be deformed by pulling.

[0018] (2) the hot melt adhesive film is used for hot pressing and compounding, so that the composite fabric is not easy to be separated and scattered, and has soft hand feeling, and the hot melt adhesive film layer does not affect the fabric style of the surface layer and the bottom layer. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the low-elongation composite fabric.

[0020] Figure 2 is a structural schematic view of the hot melt adhesive film layer.

[0021] The following marks in the drawing are explained as follows: 1 - surface layer of woven fabric; 2 - hot melt adhesive film; 3 - bottom layer of woven fabric; 4 - first sewing track; 5 - second sewing track. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the drawings and specific embodiments.

[0023] in combination with Figure 1 and Figure 2 , the utility model relates to a kind of low extension composite fabric, including surface layer woven fabric 1, hot melt adhesive film 2 and bottom layer woven fabric 3.The surface layer woven fabric 1 and bottom layer woven fabric 3 are interwoven by low extension yarn;First sewing track 4 and second sewing track 5 formed by low extension yarn shape warp sewing are provided on the hot melt adhesive film 2;First sewing track 4 and second sewing track 5 have opposite inclined directions.

[0024] First sewing track 4 and second sewing track 5 all include multiple, and adjacent two sewing tracks are parallelly arranged.The first sewing track 4 and second sewing track 5 with certain included angle provided on hot melt adhesive film 2 can make that composite fabric not only has low extension in warp and weft, but also has good low extension in oblique direction.

[0025] Further, the low extension yarn is one of cotton yarn, wool yarn, hemp yarn, polyester, nylon, polypropylene, polyethylene fiber and aramid fiber, and the above yarns all have low extension.

[0026] Further, the hot melt adhesive film is one of EVA, PA, PES, PP and TPU.

[0027] Further, the interval between adjacent two first sewing tracks 4 and the interval between adjacent two second sewing tracks 5 are all not more than 5cm.

[0028] Further, first sewing track 4 and second sewing track 5 are left-right axis symmetrical.The included angle between first sewing track 4 and second sewing track 5 and weft yarn in surface layer woven fabric 1 is 30-60 °.

[0029] Embodiment 1

[0030] A kind of low extension soft composite fabric involved in the embodiment is prepared by following process.The preparation method includes:

[0031] (1) use 32S / 2 cotton yarn as warp and weft to weave surface layer woven fabric 1, and the extension of cotton yarn is small, which provides the force of restriction elongation in warp and weft for composite fabric, and the hand feeling is soft and comfortable.

[0032] (2) use 32S / 2 cotton yarn as warp and weft to weave bottom layer woven fabric 3.

[0033] (3) use 300D / 72F ultrahigh molecular polyethylene fiber filament to be obliquely 45 ° sewing on EVA hot melt adhesive film 2, then interval 1cm, parallelly sew the second, and so on, until end, form first sewing track 4.

[0034] (4) The stitching direction is axisymmetric left and right. Use polyethylene spun yarn to stitch on EVA adhesive film 2, 1 cm apart, parallel to stitch the second one, and so on until the end, forming the second stitching track 5. The first stitching track 4 and the second stitching track 5 finally form a rhombic lattice structure on the EVA melt adhesive film 2.

[0035] (5) Composite in the order of "top woven fabric 1 + hot melt adhesive film 2 + bottom woven fabric 3" at a temperature of 120°C for 30s.

[0036] Example 2

[0037] A low-stretch soft composite fabric involved in this embodiment is prepared by the following process. The preparation method comprises:

[0038] (1) Use 300D / 72F ultrahigh molecular polyethylene fiber as warp and weft to weave top woven fabric 1.

[0039] (2) Use 300D / 96F polyester low stretch yarn DTY as warp and weft to weave bottom woven fabric 3.

[0040] (3) Use Bondi line (component is nylon) to stitch on PP hot melt adhesive film 2 at 45°, then 2.54 cm apart, parallel to stitch the second one, and so on until the end, forming the first stitching track 4.

[0041] (4) The stitching direction is axisymmetric left and right. Use Bondi line to stitch on PP hot melt adhesive film 2, 2.54 cm apart, parallel to stitch the second one, and so on until the end, forming the second stitching track 5. The first stitching track 4 and the second stitching track 5 finally form a rhombic lattice structure on the hot melt adhesive film.

[0042] (5) Composite in the order of "top woven fabric 1 + hot melt adhesive film 2 + bottom woven fabric 3" at a temperature of 145°C for 30s.

[0043] Example 3

[0044] A low-stretch soft composite fabric involved in this embodiment is prepared by the following process. The preparation method comprises:

[0045] (1) Use 32s wool yarn as warp and weft to weave top woven fabric 1.

[0046] (2) Use 28s / 6 cotton yarn as warp and 10.5N flax yarn as weft to weave bottom woven fabric 3.

[0047] (3) Use cotton sewing thread to sew on PA hot melt adhesive film 2 at an angle of 60°, then interval 2 cm, parallel to the second, and so on until the end, forming the first sewing track 4.

[0048] (4) The sewing direction is axisymmetric left and right. Use cotton sewing thread to sew on PA hot melt adhesive film 2, interval 2 cm, parallel to the second, and so on until the end, forming the second sewing track 5. The first sewing track 4 and the second sewing track 5 finally form a diamond lattice structure on the hot melt adhesive film.

[0049] (5) According to the order of "top layer woven fabric 1 + hot melt adhesive film 2 + bottom layer woven fabric 3", composite at a temperature of 145℃ for 30s.

[0050] Comparative Example 1

[0051] A low-elongation soft composite fabric involved in this embodiment is prepared by the following process. The preparation method comprises:

[0052] (1) Use 150D / 48F polyester high-elasticity filament as warp and weft to weave top layer woven fabric 1;

[0053] (2) Use 150D / 48F polyester high-elasticity filament as warp and weft to weave bottom layer woven fabric 2;

[0054] (3) Use 300D / 72F ultrahigh molecular polyethylene fiber 4 to sew on EVA hot melt adhesive film 2 at an angle of 45°, then interval 1 cm, parallel to the second, and so on until the end, forming the first sewing track 4.

[0055] (4) The sewing direction is axisymmetric left and right. Use polyethylene staple fiber 5 to sew on EVA adhesive film 2, interval 1 cm, parallel to the second, and so on until the end, forming the second sewing track 5. The first sewing track 4 and the second sewing track 5 finally form a diamond lattice structure on the EVA hot melt adhesive film 2.

[0056] (5) According to the order of "top layer woven fabric 1 + hot melt adhesive film 2 + bottom layer woven fabric 3", composite at a temperature of 120℃ for 30s.

[0057] Comparative Example 2

[0058] A low-elongation soft composite fabric involved in this embodiment is prepared by the following process. The preparation method comprises:

[0059] (1) Use 300D / 72F ultrahigh molecular polyethylene fiber as warp and weft to weave top layer woven fabric 1.

[0060] (2) using 300D / 96F polyester low stretch yarn DTY as warp and weft to weave bottom layer plain fabric 3.

[0061] (3) using PP hot melt adhesive film as the intermediate film layer, combining in the order of "surface layer plain fabric 1 + hot melt adhesive film 2 + bottom layer plain fabric 3", and performing hot pressing at a temperature of 145℃ for 30s to perform compounding.

[0062] The fabric prepared in the embodiment 1, the embodiment 2, the embodiment 3 and the comparative example is subjected to performance test in terms of elongation, and the specific structure is as follows:

[0063] The force of the test condition is 1.5N / cm, and the elongation (%) of the composite fabric in different angle directions with the warp is tested.

[0064] 0° 45° 90° 60° 135° Example 1 3.5 2.0 3.5 3.6 2.0 Example 2 1.7 4.0 2.0 4.8 4.0 Example 3 5.0 6.5 5.0 4.0 6.5 Comparative Example 1 9.5 3.0 10.0 4.5 3.0 Comparative Example 2 3.0 20.0 3.0 16.0 19.6

[0065] As shown in Table 1, the fabric prepared by the application has low ductility effect in each direction, and the low ductility yarn is introduced in a specific angle direction, so that the low ductility effect of the whole fabric can be improved, and the stress is not easy to deform. Compared with the embodiment 1, the polyester high stretch yarn is used as the raw material of the surface layer plain fabric and the bottom layer plain fabric in the comparative example 1, and there is no low extension yarn in the warp and weft direction, so that the restriction extension force is small, and the elongation of the composite fabric under stress is high. Compared with the embodiment 2, the low ductility yarn is not cross-stitched on the hot melt adhesive film in the comparative example 2, and the composite fabric has no restriction extension force in the oblique direction, so that the elongation under stress in the oblique direction of 45°, 60° and 135° is high.

[0066] The above describes the preferred embodiments of the application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the application shall be within the protection scope defined by the claims.

Claims

1. A low-stretch composite fabric, characterized by, The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); 2. The low-stretch composite fabric of claim 1, wherein, The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); 3. The low-stretch composite fabric of claim 1, wherein, The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); 4. The low-stretch composite fabric of claim 1, wherein, The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); 5. The low-stretch composite fabric of claim 1, wherein, The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); 6. The low-stretch composite fabric of claim 1, wherein, The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of woven fabric (3); The surface layer of the invention is a woven fabric (1), a hot melt adhesive film (2) and a bottom layer of

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