Polypropylene composite fiber waterproof fabric

Abstract

The utility model provides a polypropylene composite fiber waterproof fabric, which is formed by weaving warp yarns and weft yarns in a cross state, the warp yarns or the weft yarns are formed by weaving waterproof fibers or composite fibers formed by mixing the waterproof fibers and common fibers, and the waterproof fibers are formed by mixing, melting and spinning a basic raw material I, a waterproof raw material and an auxiliary agent I, the common fiber is formed by mixing, melting and spinning a basic raw material II and an auxiliary agent II, the waterproof fabric further comprises a plurality of net-shaped interweaving points which are used for filling gaps between the warp yarns and the weft yarns, and the net-shaped interweaving points are positioned on cross points of the warp yarns and the weft yarns. The interlaced points are densely arranged to form a fine grid matrix on the fabric so as to prevent water from permeating into the fabric and ensure the waterproof effect of the fabric, and compared with a traditional coating process, the stability of the fused waterproof raw material on a basic raw material is higher than that of a waterproof coating on a common fabric, and the service life of the fused waterproof raw material is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof fabrics, in particular to a polypropylene composite fiber waterproof fabric. Background Art

[0002] As people's living standards improve, they have higher and higher requirements for the functionality of the fabrics they wear, such as fabrics with waterproof functions.

[0003] Conventional waterproof fabrics currently on the market are often manufactured by coating a waterproof coating on a base fabric. For example, a method for making a windproof and waterproof coating fabric with a Chinese patent publication number of CN 113652876 A includes "spraying: placing a windproof and waterproof coating liquid into an adjustable sprayer and spraying it evenly on the surface of the base fabric; d. drying: placing the sprayed base fabric into a fabric drying machine; e. washing: placing the dried coated base fabric into a washing tank; f. shaping: placing the washed coated base fabric into a shaping machine; g. inspection: inspecting the shaped windproof and waterproof coating fabric..."

[0004] However, the above-mentioned coated waterproof fabrics have the following disadvantages: since the coating is wrapped outside the base layer, the applied coating is not tightly connected to the base layer. Also, since the base fabric is in a mesh shape, the mesh gaps of the base fabric are easily broken and cannot withstand long-term machine washing. After multiple washings, the waterproof effect is greatly reduced. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a polypropylene composite fiber waterproof fabric, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical scheme: a polypropylene composite fiber waterproof fabric, the waterproof fabric is woven by warp and weft in a cross state, the warp or weft is woven by waterproof fiber or a composite fiber mixed with waterproof fiber and ordinary fiber, the waterproof fiber is formed by melt spinning a mixture of basic raw material one, waterproof raw material, and auxiliary agent one, and the ordinary fiber is formed by melt spinning a mixture of basic raw material two and auxiliary agent two.

[0009] Preferably, the waterproof fabric further includes a plurality of mesh interlacing points for filling the gaps between the warp and weft threads, and the mesh interlacing points are located at the intersections of the warp and weft threads.

[0010] Preferably, the basic raw material one and the basic raw material two are both PP.

[0011] Preferably, the waterproof material is at least one of POE, EVA, SEBS, SBS or EPDM.

[0012] Preferably, the weight proportion of the waterproof material in the waterproof fiber is 1-50%, and the melting point of the waterproof material is less than 100°C.

[0013] Preferably, the auxiliary agent 1 and the auxiliary agent 2 are at least one of an antioxidant or an anti-aging agent.

[0014] Preferably, the weight proportion of the waterproof fiber in the waterproof fabric is 1-100%.

[0015] Preferably, the mesh interweaving points are melted waterproof material.

[0016] (III) Beneficial effects

[0017] The utility model provides a polypropylene composite fiber waterproof fabric, which has the following beneficial effects:

[0018] 1. The polypropylene composite fiber waterproof fabric has a plurality of mesh interlacing points arranged in a matrix form on the waterproof fabric to fill the gaps generated by the warps and wefts constituting the waterproof fabric during weaving. These interlacing points are densely arranged to form a fine grid matrix on the fabric to prevent moisture from penetrating into the fabric and ensure the waterproof effect of the fabric. Compared with the traditional coating process, the stability of the melted waterproof raw material on the base raw material is stronger than that of the waterproof coating on the ordinary fabric, and the service life is longer.

[0019] 2. The polypropylene composite fiber waterproof fabric has antioxidants or anti-aging agents added during weaving to improve its anti-ultraviolet and anti-aging properties, so that the waterproof fabric can be used in different scenarios such as indoors and outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the waterproof mesh interweaving points at the intersection of the longitude and latitude lines of the utility model;

[0021] Figure 2 It is a schematic diagram of the waterproof mesh interweaving points between the parallel lines of the utility model;

[0022] Figure 3 Schematic diagram of fabrics woven from existing ordinary fibers.

[0023] In the figure: 1 waterproof fiber, 2 waterproof mesh interlacing points, 3 ordinary fiber. DETAILED DESCRIPTION

[0024] The utility model provides a polypropylene composite fiber waterproof fabric, such as Figure 1-3As shown, the waterproof fabric includes warp threads and weft threads, and the warp threads and the weft threads are woven in a cross state.

[0025] In this embodiment, the warp or weft is made of composite fibers mixed with the waterproof fiber 1 and the ordinary fiber 3.

[0026] In other embodiments, the warp threads or the weft threads are woven from the waterproof fiber 1 .

[0027] It can be understood that the weight proportion of the waterproof fiber 1 in the waterproof fabric is 1-100%.

[0028] In this embodiment, the waterproof fiber 1 and the common fiber 3 are both prepared by a melt spinning process, wherein the waterproof fiber 1 includes a basic raw material 1, a waterproof raw material and an auxiliary agent 1, and the common fiber 3 includes a basic raw material 2 and an auxiliary agent 2.

[0029] Furthermore, the base raw material 1 and the base raw material 2 are both PP, the waterproof raw material is at least one of POE, EVA, SEBS, SBS or EPDM, and the auxiliary agent 1 and the auxiliary agent 2 are at least one of antioxidants or anti-aging agents;

[0030] Furthermore, the weight ratio of the waterproof material in the waterproof fiber 1 is 1-50%, and the melting point of the waterproof material is less than 100°C.

[0031] In this embodiment, the waterproof fabric further includes a plurality of mesh interlacing points 2 for filling the gaps between the warp and weft threads. The mesh interlacing points 2 are located at the intersections of the warp and weft threads. It can be understood that the mesh interlacing points 2 are attached to any intersection of the plurality of warp threads and the plurality of weft threads constituting the waterproof fabric.

[0032] Furthermore, the mesh interlaced points 2 are melted waterproof materials.

[0033] A plurality of mesh interlacing points 2 are arranged on the waterproof fabric in the form of a matrix, and a non-contact grid matrix is ​​formed between the plurality of mesh interlacing points 2. The gaps generated by the plurality of warps and wefts constituting the waterproof fabric during weaving are filled to prevent moisture from penetrating into the fabric, thereby ensuring the waterproof effect of the fabric.

[0034] The waterproof raw material is fused with the base raw material through a melting process. Compared with the existing process of applying waterproof coating on the surface of ordinary fabrics, the stability of the melted waterproof raw material on the base raw material is stronger than the stability of the waterproof coating on ordinary fabrics, and the service life is longer.

[0035] Furthermore, by adding antioxidants or anti-aging agents during weaving of waterproof fabrics, the anti-ultraviolet and anti-aging properties of the waterproof fabrics are improved, so that the waterproof fabrics can be used in different scenarios such as indoors and outdoors.

[0036] The manufacturing method of waterproof fabric is:

[0037] Step 1: Mix the base raw material PP, the waterproof raw material and the additive, perform melt spinning through a spinning machine at a temperature of 220° C.-280° C., control the spinning speed of the spinning machine to be 500-1000 m / min, and after the spinning is completed, cool at a temperature of 25-40° C., and control the cooling speed to be 500-1000 m / min to obtain a waterproof fiber 1;

[0038] The basic raw material PP and the additives are mixed and the common fiber 3 is made by the same melt spinning process as the waterproof fiber 1.

[0039] Step 2: The waterproof fiber 1 and the ordinary fiber 3 are mixed in proportion, and the mixed fiber bundle is processed into a rough-surfaced air-transformed composite fiber filament by an air-transformed yarn device, wherein the waterproof fiber 1 with the waterproof raw material added is evenly dispersed inside and outside the composite fiber filament in a fluffy state;

[0040] The number of monofilaments in the prepared composite fiber bundle is 20-100, wherein the number of the waterproof fiber 1 accounts for 1-100% of the composite fiber bundle.

[0041] Step 3: Weaving the composite fiber filaments in step 2 into fabrics at a ratio of 10-50 strands / cm in the warp direction and 10-20 strands / cm in the weft direction;

[0042] Step 4: Place the waterproof fabric in step 3 on a hot roller for heat setting treatment, and control the roller temperature to 50-100°C. During the heat setting treatment, the waterproof raw material in the waterproof fiber 1 melts, while the basic raw material PP in the waterproof fiber 1 and the basic raw material PP in the ordinary fiber 3 do not melt. Under the synchronous action of the roller pressure, the melted waterproof raw material forms a mesh interlacing point at the intersection of the warp composite fiber and the weft composite fiber, and fills the gaps between the warp composite fiber and the weft composite fiber to make a waterproof fabric.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polypropylene composite fiber waterproof fabric, characterized in that: The waterproof fabric is woven by warp and weft in a cross-shaped state, the warp or weft is woven by waterproof fiber (1) or composite fiber obtained by mixing waterproof fiber (1) and common fiber (3), the waterproof fiber (1) is formed by melt spinning of a mixture of basic raw material 1, waterproof raw material and auxiliary agent 1, and the common fiber (3) is formed by melt spinning of a mixture of basic raw material 2 and auxiliary agent 2; the waterproof fabric also includes a plurality of mesh interlacing points (2) for filling the gaps between the warp and weft, the mesh interlacing points (2) being located at the intersections of the warp and weft; A plurality of mesh interlacing points (2) are arranged on the waterproof fabric in a matrix form, and a non-contact grid matrix is ​​formed between the plurality of mesh interlacing points (2).

2. The polypropylene composite fiber waterproof fabric according to claim 1, characterized in that: The basic raw material one and the basic raw material two are both PP.

3. The polypropylene composite fiber waterproof fabric according to claim 1, characterized in that: The waterproof material is at least one of POE, EVA, SEBS, SBS or EPDM.

4. The polypropylene composite fiber waterproof fabric according to claim 3, characterized in that: The weight proportion of the waterproof material in the waterproof fiber (1) is 1-50%, and the melting point of the waterproof material is less than 100°C.

5. The polypropylene composite fiber waterproof fabric according to claim 1, characterized in that: The auxiliary agent 1 and the auxiliary agent 2 are at least one of an antioxidant or an anti-aging agent.

6. The polypropylene composite fiber waterproof fabric according to claim 1, characterized in that: The weight proportion of the waterproof fiber (1) in the waterproof fabric is 1-100%.

7. The polypropylene composite fiber waterproof fabric according to claim 1, characterized in that: The mesh interlaced points (2) are melted waterproof raw materials.

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