Regenerated spandex fiber fabric

Abstract

The utility model discloses a regenerated spandex fiber fabric which comprises a fabric inner layer, a waterproof moisture-permeable film and a fabric surface layer which are compounded with one another, the fabric inner layer is formed by weaving polyester regenerated spandex core-spun yarns, the polyester regenerated spandex core-spun yarns comprise first core yarns and polyester multifilaments wrapping the outer sides of the first core yarns, the first core yarns are regenerated spandex filaments, and the polyester multifilaments comprise first polyester monofilaments with flat sections and second polyester monofilaments with cross-shaped or Y-shaped sections; the fabric surface layer is formed by weaving hollow polyester regenerated spandex core-spun yarn, and the regenerated spandex core-spun yarn comprises second core yarn, hollow polyester filament yarn and lyocell filament yarn, wherein the hollow polyester filament yarn and the lyocell filament yarn cover the outer side of the second core yarn. The flat polyester monofilaments and the polyester monofilaments with the grooves in the surfaces are used in the fabric lining, so that the fabric lining has the moisture guiding effect. And the used waterproof breathable film has waterproof and breathable effects. The filaments with hygroscopicity on the surface layer of the fabric can provide a moisture absorption effect, and the used hollow filaments can provide a warm-keeping effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of regenerated spandex fiber fabrics, belong to textile fabric technical field. BACKGROUND

[0002] Spandex is a kind of textile special fiber, has been widely used in woven and knitted elastic fabric.Conventional spandex static elongation is 450~650%, breaking strength is 1.4~2.0g / D, dynamic draft is 3.0~4.5.Regenerated spandex is that spandex waste silk produced by spandex manufacturer and on market is recycled, is reprocessed after special processing process.Because spandex has good elasticity, is widely used in sports fabric.At present stage, domestic sports functional fabric is usually single-layer fabric with elastic function, can be applied to indoor or outdoor in summer.But when outdoor sports in spring and autumn, since the temperature of outdoor is not too high, fabric needs to have certain warmth effect.Using regenerated spandex to prepare elastic fabric accords with people's environmental protection concept.How to prepare a kind of regenerated spandex fiber fabric, with certain warmth effect, can be applied to outdoor sports in spring and autumn, become the problem to be solved. SUMMARY

[0003] The utility model aims at providing a kind of regenerated spandex fiber fabric, under the premise of having certain warmth effect, still have good waterproof moisture permeable effect.

[0004] To solve the above technical problem, the utility model aims at being realized as follows:

[0005] The utility model relates to a kind of regenerated spandex fiber fabric, including the composite fabric inner layer, waterproof moisture permeable membrane and fabric surface layer;

[0006] The fabric inner layer is knitted fabric that is woven by polyester regenerated spandex core yarn, and the polyester regenerated spandex core yarn includes first core yarn and polyester multifilament coated on the outer side of the first core, the first core yarn is regenerated spandex filament, and the polyester multifilament includes first polyester monofilament and second polyester monofilament arranged in parallel, the cross section of the first polyester monofilament is flat, and the cross section of the second polyester monofilament is cross-shaped or Y-shaped;

[0007] The fabric surface layer is knitted fabric that is woven by hollow polyester regenerated spandex core yarn, and the regenerated spandex core yarn includes second core yarn, hollow polyester filament and lyocell filament coated on the outer side of the second core yarn.

[0008] On the basis of the above scheme and as the preferred scheme of the above scheme: the waterproof moisture permeable membrane is non-porous moisture permeable film or micro-porous film.

[0009] Based on the above scheme and as a preferred scheme of the above scheme: the non-porous moisture-permeable film is a TPE non-porous hydrophilic film.

[0010] Based on the above scheme and as a preferred scheme of the above scheme: the microporous film is a PTFE microporous film, an expanded polyethylene film, a microporous polyurethane, or an electrospinning nanofilm.

[0011] Based on the above scheme and as a preferred scheme of the above scheme: the polyester multifilament is semi-dull polyester or full-dull polyester.

[0012] The utility model discloses a kind of regenerated spandex fiber fabrics, the flat polyester monofilament used in fabric inner layer and the polyester monofilament with groove on surface, so that fabric inner layer has the effect of wet guiding.The waterproof and breathable membrane used has the effect of waterproof and breathability.The filament with hygroscopicity on fabric surface layer can provide the effect of hygroscopicity, and the hollow filament used can provide certain warm-keeping effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic view of the regenerated spandex fiber fabric of example one.

[0014] Markings in the drawing are as follows: 1-fabric inner layer;2-waterproof and breathable membrane;3-fabric surface layer. DETAILED DESCRIPTION

[0015] The utility model is further illustrated below in connection with the drawings and specific embodiments.

[0016] Example one

[0017] In combination Figure 1 , this embodiment is described in detail. The regenerated spandex fiber fabric of the utility model relates to, including fabric inner layer 1 that is by hot melt adhesive net film phase composite, waterproof and breathable membrane 2 and fabric surface layer 3.

[0018] The fabric inner layer 1 is knitted fabric that is woven by polyester regenerated spandex core spun yarn, and the polyester regenerated spandex core spun yarn includes first core yarn and polyester multifilament coated on the outer side of the first core, the first core yarn is regenerated spandex filament, and the polyester multifilament includes first polyester monofilament and second polyester monofilament arranged in parallel, the cross section of the first polyester monofilament is flat, and the cross section of the second polyester monofilament is cross-shaped or Y-shaped. The fineness of the specific polyester multifilament is 75D / 72F, the number of the first polyester monofilament is 36, and the number of the second polyester monofilament is 36. And the cross section of the second polyester monofilament is Y-shaped, and has good wet guiding effect through wicking effect.

[0019] The fabric surface layer 3 is knitted fabric woven by hollow polyester regenerated spandex core yarn, the regenerated spandex core yarn includes second core yarn and hollow polyester filament and lyocell filament wrapped outside the second core yarn. Lyocell filament is regenerated cellulose fiber, has moisture absorption effect, can absorb moisture transmitted by waterproof and moisture permeable film 2.

[0020] Further, the waterproof and moisture permeable film 2 is a non-porous moisture permeable film or a microporous film. Waterproof and moisture permeable films can be classified according to their moisture permeable principles and waterproof mechanisms, mainly including two categories: non-porous moisture permeable film and microporous film. Non-porous moisture permeable film is usually made of hydrophilic polymer, and its internal structure contains hard segment and soft segment. The soft segment is rich in hydrophilic groups, which can efficiently absorb the moisture emitted by the human body, and quickly transfer the water vapor from the inside to the outside through the process of "adsorption-diffusion-desorption". While the hard segment is composed of hydrophobic groups, which can effectively block the passage of water droplets, thereby realizing the waterproof function. In addition, the moisture permeability of non-porous moisture permeable film is also affected by multiple factors such as the ratio of soft / hard segment, processing technology and film thickness.

[0021] At present, the film using non-porous moisture permeable mechanism occupies a large share in the market, especially thermoplastic elastomer (TPE). TPE film not only has good flexibility, excellent elasticity and tensile properties, but also has excellent hydrostatic pressure resistance, low production cost and significant market advantage. However, the moisture permeability of TPE film is affected by its thickness and hydrophilic segment content, the thinner the film, the higher the hydrophilic segment content, the better the moisture permeability.

[0022] In this embodiment, a non-porous moisture permeable film is selected, which is a TPE non-porous hydrophilic film.

[0023] Example Two

[0024] The regenerated spandex fiber fabric involved in this embodiment is different from example one in that the microporous film is PTFE microporous film, expanded polyethylene film, microporous polyurethane or electrospinning nanometer film. In this embodiment, PTFE microporous film is selected. Microporous waterproof and moisture permeable film is covered with a large number of fine pores with a pore size of about 0.2 to 2 microns. These pores only allow water vapor molecules with a particle size of about 0.0004 microns to pass through, while any mist, rain or water droplets cannot penetrate. Therefore, the water vapor emitted by the human body can smoothly pass through these pores and at the same time water droplets cannot enter, thereby realizing the dual effect of waterproof and moisture permeable. The performance of microporous film, such as average pore size, pore distribution, number, thickness and hydrophilic / hydrophobic property, will directly affect its waterproof and moisture permeable effect.

[0025] Further, the polyester multifilament is semi-dull polyester or full-dull polyester. In this embodiment, semi-dull is selected.

[0026] 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 variations without creative work according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the existing technology according to the concept of the present application shall be within the protection scope determined by the claims.

Claims

1. A regenerated spandex fiber fabric, characterized by, The fabric comprises a fabric inner layer (1), a waterproof and moisture permeable film (2) and a fabric surface layer (3); The fabric inner layer (1) is a knitted fabric woven by polyester regenerated spandex core yarn, the polyester regenerated spandex core yarn comprises a first core yarn and polyester multifilament coated outside the first core, the first core yarn is regenerated spandex filament, the polyester multifilament comprises first polyester monofilament and second polyester monofilament arranged in parallel, the cross section of the first polyester monofilament is flat, and the cross section of the second polyester monofilament is cross-shaped or Y-shaped. The fabric surface layer (3) is a knitted fabric woven by hollow polyester regenerated spandex core yarn, the regenerated spandex core yarn comprises a second core yarn and hollow polyester filament and lyocell filament coated outside the second core yarn.

2. The regenerated spandex fabric according to claim 1, wherein, The waterproof and moisture permeable film (2) is a non-porous moisture permeable film or a micro-porous film.

3. The regenerated spandex fabric according to claim 2, wherein, The non-porous moisture permeable film is a TPE non-porous hydrophilic film.

4. The regenerated spandex fabric according to claim 2, wherein, The micro-porous film is a PTFE micro-porous film, an expanded polyethylene film, a micro-porous polyurethane or an electrospinning nanometer film.

5. The regenerated spandex fabric according to claim 1, wherein, The polyester multifilament is semi-dull polyester or full-dull polyester.

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