Waterproof wind-resistant polyester fabric

Abstract

The utility model discloses waterproof wind -resistant polyester fabric belongs to the technical field of knitted fabric, in proper order including outer layer base cloth layer, intermediate functional layer and inner lining protective layer, outer layer base cloth layer is made with first yarn in the way of weft knitting, and forms periodic type and forms the fish scale shape protruding, and inner lining protective layer is made with second yarn in the way of warp knitting, and is formed with connecting area and mesh area. The waterproof wind -resistant polyester fabric of the utility model, through the waterproof wind -proof barrier of functional intermediate layer gives the achievement of fabric, and the point -like type adhesive technology guarantees firm composite while maximumly retains the breathable micropore of film, and the fish scale shape protruding structure formed by outer layer weft knitting effectively improves the wind -proof performance and fabric durability, and the mesh area formed by inner layer warp knitting significantly enhances the air permeability and the wetting efficiency, and its connecting area provides stable adhesive basis for the film, avoids the film damage due to adhesive stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of knitted fabric technology, specifically to waterproof and windproof polyester fabric. Background Technology

[0002] Polyester fabric is made primarily of polyester fibers. It features high strength, good elasticity, corrosion resistance, and abrasion resistance, and is widely used in the production of outerwear, sun-protective clothing, and other garments.

[0003] To improve wearing comfort, some polyester fabrics are blended with spandex fibers to create four-way stretch fabrics, giving them excellent elasticity and freedom of movement. However, they lack waterproof and windproof properties and cannot adapt to changeable weather. This makes it impossible for existing polyester fabrics to meet people's diverse usage needs and the diversified market demands.

[0004] To address the aforementioned issues, a waterproof and windproof polyester fabric technical solution is proposed to supplement the existing types of polyester fabrics. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a waterproof and windproof polyester fabric.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof and windproof polyester fabric, comprising an outer base fabric layer, a middle functional layer, and an inner protective layer. The middle functional layer is an ePTFE film, which is bonded to the outer base fabric layer and the inner protective layer by dot-matrix bonding. The outer base fabric layer is made of a first yarn by weft knitting and forms periodic fish-scale-like protrusions. The inner protective layer is made of a second yarn by warp knitting and forms a connecting area and a mesh area. The main bonding area between the middle functional layer and the inner protective layer is distributed in the connecting area.

[0007] The present invention is further configured such that: the first yarn is formed by twisting ultra-fine denier polyester fiber bundles and spandex fiber bundles at a twist rate of 750 revolutions per meter.

[0008] The present invention is further configured such that the second yarn is made of polyester filament, spandex staple filament and viscose fiber bundle twisted together.

[0009] The present invention is further configured such that: the outer base fabric layer adopts a four-needle disc and is woven in a nine-way cycle, wherein the first and ninth ways are loops; the second and eighth ways are loops, loops, loops, loops, loops; the third and seventh ways are floats, loops, loops, loops; the fourth and sixth ways are floats, floats, loops, loops; and the fifth way is floats, floats, floats, loops.

[0010] The present invention is further configured such that: the inner lining protective layer is woven from five combs, the combs GB1, GB2 and GB3 form a connecting area, and the combs GB4 and GB5 form a mesh area.

[0011] The present invention is further configured such that: the comb GB1 is a braided chain structure, and the padding method of the comb GB1 is: / 1-0 / / , two threads through one empty thread.

[0012] The present invention is further configured such that: both the guide bar GB2 and the guide bar GB3 are closed-knit plain knit; the yarn padding method of the guide bar GB2 is: / 1-2 / 1-0 / / , one thread and two empty; the yarn padding method of the guide bar GB3 is: / 1-0 / 1-2 / / , one thread and two empty.

[0013] The present invention is further configured such that: both the guide bar GB4 and the guide bar GB5 are modified weaves; the yarn padding method of the guide bar GB4 is: / 4-3 / 3-2-1 / 1-2 / 2-3-4 / / , one threaded and two empty; the yarn padding method of the guide bar GB5 is: / 1-2 / 2-3-4 / 4-3 / 3-2-1 / / , one threaded and two empty.

[0014] In summary, this utility model has the following beneficial effects: the functional intermediate layer provides the fabric with a waterproof and windproof barrier; the dot-matrix bonding process ensures a strong composite while maximizing the preservation of the membrane's breathable micropores; the fish-scale-like raised structure formed by the outer weft knitting effectively improves windproof performance and fabric durability; the mesh area formed by the inner warp knitting significantly enhances breathability and moisture wicking efficiency; and its connecting area provides a stable bonding foundation for the membrane, avoiding membrane damage caused by concentrated bonding stress. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first yarn of this utility model; Figure 3 This is a schematic diagram of the structure of the second yarn of this utility model; Figure 4 This is a triangular configuration diagram of the outer base fabric layer of this utility model; Figure 5 This is a schematic diagram of the padding yarn in the inner protective layer of this utility model; Figure 6 A schematic diagram of the padding yarn in the comb GB1 of the inner protective layer; Figure 7 A schematic diagram of the padding yarn for the comb GB2 and comb GB3 in the inner protective layer; Figure 8This is a schematic diagram of the padding yarn for the guide bars GB4 and GB5 in the inner protective layer.

[0016] In the diagram: 1. Outer base fabric layer; 11. Protrusion; 2. Middle functional layer; 3. Inner lining protective layer; 31. Connecting area; 32. Mesh area; 4. First yarn; 41. Ultra-fine denier polyester fiber bundle; 42. Spandex fiber; 5. Second yarn; 51. Polyester filament; 52. Spandex staple filament; 53. Viscose fiber bundle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model 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 limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Waterproof and windproof polyester fabric, such as Figures 1-8 As shown, it includes, in sequence, an outer base fabric layer 1, an intermediate functional layer 2, and an inner protective lining layer 3.

[0019] The intermediate functional layer 2 is an ePTFE film, which is bonded to the outer base fabric layer 1 and the inner protective lining layer 3 by dot-like bonding. It serves as the core functional barrier, providing the main waterproof and windproof performance.

[0020] The outer base fabric layer 1 is made of the first yarn 4 by weft knitting and forms periodic fish scale-like protrusions 11. The first yarn 4 is made of ultra-fine denier polyester fiber bundles 41 and spandex fiber bundles 42 twisted at a twist of 750 revolutions / meter. Ultra-fine denier polyester provides a delicate hand feel and high density, while spandex gives the fabric the necessary elasticity.

[0021] The outer base fabric layer 1 is woven with a four-needle disc and in a nine-way cycle. The first and ninth routes are loops; the second and eighth routes are loops, loops, loops, loops, loops; the third and seventh routes are floats, loops, loops, loops; the fourth and sixth routes are floats, floats, loops, loops; and the fifth route is floats, floats, floats, loops.

[0022] Through the aforementioned special nine-way circular weaving, a periodic, fish-scale-like protrusion structure is formed on the surface of the outer base fabric layer 11. This structure not only increases the surface area of ​​the fabric and improves the windproof effect, but also enhances the three-dimensionality and abrasion resistance of the fabric.

[0023] The inner lining protective layer 3 is made of the second yarn 5 by warp knitting and forms a connecting area 31 and a mesh area 32. The second yarn 5 is made of polyester filament 51, spandex staple filament 52 and viscose fiber bundle 53 twisted together. The polyester filament 51 provides strength, the spandex staple filament 52 increases elasticity, and the viscose fiber has good moisture absorption and improves wearing comfort.

[0024] The inner protective layer 3 is woven from five combs. Combs GB1, GB2 and GB3 form the connecting area 31, and combs GB4 and GB5 form the mesh area 32.

[0025] The guide bar GB1 is a chain braided structure. The yarn padding method of the guide bar GB1 is: / 1-0 / / , two threads through and one empty thread.

[0026] Both the GB2 and GB3 combs are closed-knit plain knit. The yarn padding method for the GB2 comb is: / 1-2 / 1-0 / / , one thread and two gaps; the yarn padding method for the GB3 comb is: / 1-0 / 1-2 / / , one thread and two gaps.

[0027] Both guide bar GB4 and guide bar GB5 are modified structures. The yarn padding method of guide bar GB4 is: / 4-3 / 3-2-1 / 1-2 / 2-3-4 / / , one thread and two gaps; the yarn padding method of guide bar GB5 is: / 1-2 / 2-3-4 / 4-3 / 3-2-1 / / , one thread and two gaps.

[0028] The connecting area 31, formed by combs GB1, GB2, and GB3, has a relatively dense structure, providing a stable and reliable adhesive base for the intermediate functional layer 2. The mesh area 32, woven by combs GB4 and GB5, has a loose structure with obvious mesh holes, which greatly enhances the overall breathability and moisture wicking efficiency of the fabric.

[0029] During lamination, the main adhesive points of the dot-matrix bonding are distributed on the connection area 31 of the inner lining protective layer 3. This design avoids large-area bonding on the soft mesh area 32, preventing the ePTFE film from being torn or damaged at the mesh due to stress concentration, thus ensuring the integrity and durability of the film.

[0030] Specific process: The woven outer base fabric layer 1 and inner protective lining layer 3 are laid flat respectively. An ePTFE film is laid between the two as the intermediate functional layer 2. An environmentally friendly water-based polyurethane adhesive is applied in a dotted pattern to both sides of the ePTFE film or the base fabric layer through a transfer roller or scraping system with a uniform dot pattern. Then, the three-layer structure is heat-pressed and laminated under certain temperature and pressure to cure the adhesive and finally form a strong three-layer composite fabric.

[0031] In summary: the functional intermediate layer provides the fabric with a waterproof and windproof barrier; the dot-matrix bonding process ensures a strong composite while maximizing the preservation of the membrane's breathable micropores; the fish-scale-like protrusions 11 formed by the outer weft knitting effectively improve windproof performance and fabric durability; the mesh area 32 formed by the inner warp knitting significantly enhances breathability and moisture wicking efficiency; and its connecting area 31 provides a stable bonding foundation for the membrane, avoiding membrane damage caused by concentrated bonding stress.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof and windproof polyester fabric, comprising, in sequence, an outer base fabric layer (1), a middle functional layer (2), and an inner protective lining layer (3), characterized in that: The intermediate functional layer (2) is an ePTFE film, which is bonded to the outer base fabric layer (1) and the inner protective layer (3) by dot-like bonding. The outer base fabric layer (1) is made of the first yarn (4) by weft knitting and forms periodic fish scale-like protrusions (11). The inner protective layer (3) is made of the second yarn (5) by warp knitting and forms a connecting area (31) and a mesh area (32). The main bonding area between the intermediate functional layer (2) and the inner protective layer (3) is distributed in the connecting area (31).

2. The waterproof and windproof polyester fabric according to claim 1, characterized in that: The first yarn (4) is made by twisting a bundle of ultra-fine denier polyester fiber (41) and a bundle of spandex fiber (42) at a twist of 750 rpm.

3. The waterproof and windproof polyester fabric according to claim 1, characterized in that: The second yarn (5) is made of polyester filament (51), spandex staple filament (52) and viscose fiber bundle (53) twisted together.

4. The waterproof and windproof polyester fabric according to claim 1, characterized in that: The outer base fabric layer (1) is woven with a four-needle disc and in a nine-way loop pattern. The first and ninth loops are loops; the second and eighth loops are loops, loops, loops, loops; the third and seventh loops are floats, loops, loops, loops. The fourth and sixth routes are floating lines, floating lines, clustering, and forming circles; The fifth line consists of floating lines, floating lines, floating lines, and a cluster.

5. The waterproof and windproof polyester fabric according to claim 1, characterized in that: The inner protective layer (3) is woven from five combs, with combs GB1, GB2 and GB3 forming a connecting area (31), and combs GB4 and GB5 forming a mesh area (32).

6. The waterproof and windproof polyester fabric according to claim 5, characterized in that: The guide bar GB1 is a chain braided structure, and the yarn padding method of the guide bar GB1 is: / 1-0 / / , two threads through one empty thread.

7. The waterproof and windproof polyester fabric according to claim 5, characterized in that: Both the guide bar GB2 and guide bar GB3 are closed-knit plain knit. The yarn padding method of the guide bar GB2 is: / 1-2 / 1-0 / / , one thread and two gaps; the yarn padding method of the guide bar GB3 is: / 1-0 / 1-2 / / , one thread and two gaps.

8. The waterproof and windproof polyester fabric according to claim 5, characterized in that: Both the guide bar GB4 and guide bar GB5 are modified weaves. The yarn padding method of the guide bar GB4 is: / 4-3 / 3-2-1 / 1-2 / 2-3-4 / / , one thread and two gaps; the yarn padding method of the guide bar GB5 is: / 1-2 / 2-3-4 / 4-3 / 3-2-1 / / , one thread and two gaps.

Images