Waterproof and anti-seepage fabric

Abstract

The waterproof and anti-seepage fabric comprises a wear-resistant layer, a waterproof layer, an antibacterial and mildew-proof layer and an anti-seepage layer which are sequentially arranged, the wear-resistant layer, the waterproof layer, the antibacterial and mildew-proof layer and the impermeable layer are compounded through dot-shaped hot-melt PU (Poly Urethane) adhesives which are distributed in a display manner; the wear-resistant layer is formed by interweaving wear-resistant yarns; the antibacterial and mildew-proof layer is formed by interweaving antibacterial and mildew-proof yarns; the impermeable layer comprises a polyester woven fabric and organic silicon modified waterborne polyurethane coatings attached to the two sides of the polyester woven fabric. Based on the waterproof and anti-seepage fabric, the waterproof layer has an excellent waterproof function, the wear-resistant layer can play a role in protecting the waterproof layer, and by utilizing the characteristics of fabric density and organization structure, the deformation degree of the fabric during rainwater spraying is effectively reduced, and the possibility that water drops permeate into the fabric is reduced; the impermeable layer improves the overall hydrostatic pressure resistance of the fabric, and further enhances the overall waterproof and impermeable functions of the fabric.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of fabrics, specifically waterproof and anti-seepage fabric. BACKGROUND

[0002] With the improvement of people's living standards and the love for outdoor activities, the functional requirements of outdoor clothing, tents, backpacks and other products are becoming higher and higher. Tent cloth products generally need to have windproof, waterproof, weather-resistant, mildew-resistant, flame-resistant and other properties, among which the waterproof performance is particularly important. Tent fabric needs to withstand a large water pressure, especially when it rains outside, the water accumulated on the surface of the tent can exert a large pressure on the bottom of the tent. Ordinary tent cloth has the disadvantage of low static water pressure resistance, which restricts the development of tent fabric, therefore, it is necessary to provide a waterproof and anti-seepage fabric. SUMMARY

[0003] The utility model aims to provide a kind of waterproof and anti-seepage fabric, which aims to improve the static water pressure resistance of the fabric and has better waterproof and anti-seepage function than ordinary tent fabric when making tent cloth.

[0004] To solve the above technical problems, the utility model aims to achieve the following: a waterproof and anti-seepage fabric, comprising: abrasion-resistant layer, waterproof layer, antibacterial and mildew-resistant layer and anti-seepage layer arranged in sequence; the abrasion-resistant layer, waterproof layer, antibacterial and mildew-resistant layer and anti-seepage layer are compounded by point-shaped hot melt type PU glue distributed; the abrasion-resistant layer is interwoven by abrasion-resistant yarn; the antibacterial and mildew-resistant layer is interwoven by antibacterial and mildew-resistant yarn; the anti-seepage layer includes polyester woven fabric and organic silicon modified waterborne polyurethane coating attached to both sides of the polyester woven fabric.

[0005] Based on the above scheme and as a preferred scheme of the above scheme: the abrasion-resistant yarn is bio-based nylon 510 fiber yarn.

[0006] Based on the above scheme and as a preferred scheme of the above scheme: the specification of the bio-based nylon 510 fiber filament is 150D / 24F.

[0007] Based on the above scheme and as a preferred scheme of the above scheme: the abrasion-resistant layer is a plain fabric with a warp and weft density of 376x300 roots / 10cm.

[0008] Based on the above scheme and as a preferred scheme of the above scheme: the waterproof layer is a thermoplastic polyurethane film.

[0009] Based on the above scheme and as a preferred scheme of the above scheme: the antibacterial and mildew-resistant yarn is antibacterial, anti-mite and mildew-resistant functional modified viscose fiber yarn.

[0010] The utility model discloses a beneficial effect is: based on the utility model waterproof anti -infiltration fabric, waterproof layer has excellent waterproof function, and wear -resisting layer can play the role of protection waterproof layer, and utilize the characteristics of fabric density and organization structure, effectively reduce the deformation degree of fabric when rain shower, reduce the possibility of water drop infiltration fabric, and the anti -infiltration layer improves the overall hydrostatic pressure resistance of fabric, further enhances the overall waterproof anti -infiltration function of fabric. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is waterproof anti -infiltration fabric's structure schematic view that the utility model discloses a waterproof anti -infiltration fabric's structure schematic view;

[0012] In the drawing: 1 - wear -resisting layer, 2 - waterproof layer, 3 - antibacterial mildew -proof layer, 4 - anti -infiltration layer. DETAILED DESCRIPTION

[0013] The utility model is further explained below in combination with the drawings and specific embodiment.

[0014] In combination Figure 1 Detailed description is made to the embodiment, a waterproof anti -infiltration fabric, comprising: wear -resisting layer 1, waterproof layer 2, antibacterial mildew -proof layer 3 and anti -infiltration layer 4 that set up in proper order, wear -resisting layer 1, waterproof layer 2, antibacterial mildew -proof layer 3 and anti -infiltration layer 4 are compounded through the point -like hot melt type PU glue of display distribution, wear -resisting layer 1 is interwoven by wear -resistant yarn, antibacterial mildew -proof layer 3 is interwoven by antibacterial mildew -proof yarn, and the anti -infiltration layer 4 includes polyester woven cloth and the organic silicon modified waterborne polyurethane coating layer attached to both sides of the polyester woven cloth.

[0015] The organic silicon modified waterborne polyurethane coating agent is prepared by using polypropylene glycol and polytetrahydrofuran ether diol as mixed soft segments, dimethylol butyric acid as a hydrophilic chain extender, and isophorone diisocyanate as a hard segment. The polyester woven cloth attached with the organic silicon modified waterborne polyurethane coating layer as the anti-infiltration layer 4 has a hydrostatic pressure resistance of up to 7500 mmH2O. Compared with the unmodified waterborne polyurethane, the organic silicon modified waterborne polyurethane coating fabric improves the shortcomings of the traditional waterborne polyurethane coating fabric in terms of hydrostatic pressure resistance to a certain extent, and has good waterproof and anti-infiltration performance.

[0016] Further, the wear-resistant yarn is a bio-based nylon 510 fiber yarn.

[0017] Further, the bio-based nylon 510 fiber filament has a specification of 150D / 24F.

[0018] The bio-based nylon 510 fiber filament is lighter in weight than ordinary nylon 6 and nylon 66, and is more comfortable to wear. The moisture regain of the bio-based nylon 510 is 2.5%, which is lower than the 3.5%-5.0% of nylon 6 and the 4.2%-4.5% of nylon 66, and is comparable to that of polyester, and the bio-based nylon 510 is dry and comfortable to wear, has higher color fastness and better stability, and has a boiling water shrinkage of only about 3%, which is lower than the 8%-10% of nylon 6 and the 6.8% of nylon 66, and the bio-based nylon 510 also has the strong functions of high wear resistance and high heat resistance.

[0019] Further, the wear-resistant layer 1 is a plain fabric with a warp and weft density of 376x300 roots / 10cm. The waterproof and impermeable properties of the fabric are closely related to its structure. The more compact the structure of the fabric, the better the waterproof and impermeable properties. The warp and weft density of the wear-resistant layer 1 is set to 376x300 roots / 10cm, which can increase the compactness of the fabric, reduce the porosity, effectively reduce the deformation degree of the fabric when rain is sprayed, reduce the damage to the waterproof layer 2, and also reduce the possibility of water droplets penetrating the fabric. The plain weave has the advantage of stable structure and small deformation when impacted by rain, and has small damage to the waterproof layer 2 of the fabric.

[0020] Further, the waterproof layer 2 is a thermoplastic polyurethane film. The thermoplastic polyurethane film is polymerized from long-chain polyols and isocyanate, and there is a strong hydrogen bond and van der Waals force between the molecular chains. This close arrangement makes it difficult for water molecules to penetrate. The hard and soft segments in its structure alternate with each other, the hard segments provide the strength and rigidity of the material, and the soft segments impart flexibility to the material. This special structure not only ensures the softness of the material, but also enhances its water molecule blocking ability. And the thermoplastic polyurethane film has high tensile strength and excellent elasticity, even if it is stretched or deformed by external force, it is not easy to produce cracks or damage, so as to maintain its waterproof integrity.

[0021] Further, the antibacterial and mildew-resistant yarn is an antibacterial and mildew-resistant functional modified viscose fiber yarn. The antibacterial and mildew-resistant functional modified viscose fiber is prepared by blending microcapsules prepared from thyme essential oil with viscose fiber spinning solution through wet spinning, using plant medicine Chinese Litsea and fennel extract solution prepared by water dissolution. The main component of Litsea is citral, accounting for 80%, which has good antimold and better antibacterial effect; the main components of fennel extract are anise ether, anisal, and anisic aldehyde, which have good mite resistance and better antibacterial property; the main component of thyme essential oil is thymol, which has strong antimold, antibacterial and better mite resistance. Compared with ordinary viscose fiber, the antibacterial and mildew-resistant functional modified viscose fiber has good antibacterial, anti-mite and anti-mildew functions and washing resistance.

[0022] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments based on the existing technology within the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A waterproof and vapor permeable fabric, characterized by, The application relates to a wear-resistant, waterproof, antibacterial and mildew-proof fabric, which comprises a wear-resistant layer (1), a waterproof layer (2), an antibacterial and mildew-proof layer (3) and a permeation-proof layer (4) arranged in sequence; the wear-resistant layer (1), the waterproof layer (2), the antibacterial and mildew-proof layer (3) and the permeation-proof layer (4) are combined by point-shaped hot melt PU glue; the wear-resistant layer (1) is formed by interweaving wear-resistant yarns; the antibacterial and mildew-proof layer (3) is formed by interweaving antibacterial and mildew-proof yarns; the permeation-proof layer (4) comprises polyester woven cloth and organic silicon modified water-based polyurethane coating layers attached to two sides of the polyester woven cloth. The wear-resistant yarns are bio-based nylon 510 fiber yarns.

2. The waterproof and anti-permeable fabric according to claim 1, characterized in that, The specification of the bio-based nylon 510 fiber filaments is 150D / 24F.

3. The waterproof and moisture permeable fabric according to claim 2, wherein The wear-resistant layer (1) is a plain fabric with a warp and weft density of 376x300 roots / 10cm.

4. The waterproof and moisture permeable fabric according to claim 3, wherein The waterproof layer (2) is a thermoplastic polyurethane film.

5. The waterproof and moisture permeable fabric according to claim 1, wherein The antibacterial and mildew-proof yarns are antibacterial and anti-mite and mildew-proof function modified viscose fiber yarns.

6. The waterproof and moisture permeable fabric according to claim 1, wherein ​

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