High-density elastic imitation non-woven fabric and production process thereof

Abstract

The invention discloses a high-density elastic imitation non-woven fabric and a production process thereof. The fabric is formed by weaving warp yarns and weft yarns according to satin weave, and is subjected to splitting, napping and shaping treatment; the warp yarns are air wrap yarns, low-melting-point polyester yarns are used as covering yarns, and high-melting-point polyester yarns are used as core yarns; the weft yarns are sea-island high stretch yarns; the sea part of the sea-island high stretch yarn is dissolved after being subjected to splitting treatment, and the island part of the sea-island high stretch yarn comprises hot melting fibers and high stretch fibers; the satin weave has weft floating length; the melting points of the low-melting-point polyester yarns and the hot melting fibers are lower than 180 DEG C; a low-melting-point polyester yarn fusion structure and a fluff structure are formed after the fabric is subjected to napping and setting treatment, the high-melting-point polyester yarn is inserted into the low-melting-point fusion structure, and hot-melting fibers in the sea-island high-stretch yarn are fused after being subjected to setting treatment to fix fluff. The imitated non-woven fabric is obtained through a weaving process, has the appearance similar to that of non-woven fabric and has the advantages of being high in density and elasticity, free of texture lines on the surface, free of batting falling and the like.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, in particular to a high-density elastic non-woven fabric and a production process thereof. Background Art

[0002] At present, non-woven fabrics are generally non-woven fabrics, which are made of oriented or randomly arranged fibers through friction, cohesion, bonding or a combination of these methods, and the connotation is "non-woven". Non-woven fabrics exist in the form of fibers, while woven fabrics exist in the form of yarns, which is also a major feature that distinguishes non-woven fabrics from other fabrics.

[0003] Non-woven fabrics are moisture-proof, breathable, flexible, lightweight, have no woven patterns, and are not easy to shed. However, compared with woven fabrics, existing non-woven fabrics have the following problems: their strength and durability are poor; they cannot be washed like other fabrics; the fibers are arranged in a certain direction and are easily cracked at right angles, etc.

[0004] However, the existing woven fleece fabric has fluff on its surface that is easy to fall off, resulting in a lot of lint when used, and the bottom is easily exposed. After the fabric is pulled apart, the surface texture is obvious.

[0005] Therefore, it is necessary to develop an imitation non-woven fabric obtained by a weaving process, which can solve the above problems existing in the existing non-woven fabrics and has the characteristics of non-woven fabric surface without tissue texture and no linting. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a high-density elastic imitation non-woven fabric and its production process; the imitation non-woven fabric is obtained by a weaving process, and its appearance is similar to non-woven fabric, and it has the advantages of high density, high elasticity, no surface tissue texture, and no linting.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0008] On the one hand, the present invention provides a high-density elastic non-woven fabric, which is woven with warp yarns and weft yarns according to a satin weave and is subjected to fiber opening, napping and shaping treatments; the warp yarns are air-coated yarns, which have low-melting-point polyester yarns as sheathing yarns and high-melting-point polyester yarns as core yarns; the weft yarns are sea-island high-elastic yarns; the sea portion of the sea-island high-elastic yarns is dissolved after fiber opening treatment, and the island portion of the sea-island high-elastic yarns includes hot-melt fibers and high-elastic fibers; the satin weave has a weft floating length; the melting points of the low-melting-point polyester yarns and the hot-melt fibers are lower than 180°C; after the napping and shaping treatments, the fabric forms a low-melting-point polyester yarn molten structure and a fluff structure, the high-melting-point polyester yarns are interspersed in the low-melting-point molten structure, and the hot-melt fibers in the sea-island high-elastic yarns are melted to fix the fluff after shaping treatment.

[0009] Furthermore, the warp yarn is 55D / 180F DTY yarn; the specification of the low-melting-point polyester yarn is 35D / 144f, and the specification of the high-melting-point polyester yarn is 20D / 36f.

[0010] Furthermore, the melting points of the high-melting-point polyester yarn and the high-elastic fiber are higher than 200°C.

[0011] Furthermore, the weft yarn is 50D / 24F DTY yarn, and after opening, the specification of the island part of the sea-island high elastic yarn is 35D / 288f.

[0012] Furthermore, the temperature of the shaping treatment is 170-200°C.

[0013] Furthermore, the sea part of the sea-island high-elastic yarn is PVA, the hot-melt fiber in the sea-island high-elastic yarn is PET, and the high-elastic fiber is PTT.

[0014] On the other hand, the present invention provides a production process for high-density elastic non-woven fabric, comprising fabric weaving, open-width washing, fiber opening, low-temperature drying, napping, dyeing and shaping in sequence; the shaping temperature is 170-200°C.

[0015] Furthermore, the production process of the high-density elastic non-woven fabric specifically includes the following steps:

[0016] (1) Fabric weaving: warp yarn and weft yarn are used to weave grey fabric according to satin weave; the warp yarn is air-covered yarn, which has low-melting point polyester yarn as the sheath and high-melting point polyester yarn as the core yarn; the weft yarn is sea-island high-elastic yarn; the island part of the sea-island high-elastic yarn includes hot-melt fiber and high-elastic fiber;

[0017] (2) Open-width washing: The grey fabric woven in step (1) is subjected to open-width continuous washing in an open-width washing machine, and the water temperature of the open-width washing process is set at 60-70° C.

[0018] (3) Fiber opening: The grey cloth after open-width water washing is sequentially passed through a fiber opening tank containing a fiber opening agent at temperatures of 60°C, 80°C, 90°C, 90°C, and 60°C;

[0019] (4) Low temperature drying: The grey cloth after fiber opening is dried at a low temperature of 130°C;

[0020] (5) Napping: The grey cloth is napped using a napping machine to cut off the long weft floating lines to form fluff;

[0021] (6) Dyeing: Place the blank in a dyeing machine for dyeing at a temperature of 130° C. for 30 minutes;

[0022] (7) Shaping: The dyed grey cloth is shaped using a setting machine with a setting temperature of 170-200°C, a machine speed of 30m / min, and a width of 145cm.

[0023] Beneficial effects of the present invention:

[0024] The fabric of the present invention is woven with warp yarn and weft yarn according to satin weave, and is subjected to fiber opening, napping and shaping treatment; wherein the warp yarn is air-coated yarn, which has low-melting-point polyester yarn as a sheath and high-melting-point polyester yarn as a core yarn; the weft yarn is sea-island high-elastic yarn; the sea part of the sea-island high-elastic yarn is dissolved after fiber opening treatment, and the island part of the sea-island high-elastic yarn includes hot-melt fiber and high-elastic fiber; after the fabric is napped and shaped, a low-melting-point polyester yarn molten structure and a fluff structure are formed, specifically, the long floating weft yarns in the satin weave are cut to form fluff, the low-melting-point polyester yarn is melted during the shaping process, and the high-melting-point polyester yarn is bonded to form a molten structure interspersed with the high-melting-point polyester yarn, the high-melting-point polyester yarn forms a skeleton in the molten structure, and the hot-melt fiber in the sea-island high-elastic yarn is melted during the shaping process, so that the fluff can be fixed, so that the fluff is not easy to fall off, and the fixed fluff can cover the tissue texture.

[0025] The appearance of the entire fabric of the present invention is similar to non-woven fabric, and at the same time has the advantages of high density, high elasticity, no tissue lines on the surface, no linting, etc. DETAILED DESCRIPTION

[0026] The technical solutions in the present invention will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The invention provides a high-density elastic non-woven fabric, which is woven from warp yarns and weft yarns according to a satin weave and is subjected to fiber opening, napping and shaping treatments; the warp yarns are air-coated yarns, which have low-melting-point polyester yarns as sheathing yarns and high-melting-point polyester yarns as core yarns; the weft yarns are sea-island high-elastic yarns; the sea portion of the sea-island high-elastic yarns is dissolved after fiber opening treatment, and the island portion of the sea-island high-elastic yarns includes hot-melt fibers and high-elastic fibers; the satin weave has a weft floating length; the melting points of the low-melting-point polyester yarns and the hot-melt fibers are lower than 180° C., more specifically 150-180° C.; after the napping and shaping treatments, the fabric forms a low-melting-point polyester yarn molten structure and a fluff structure, the high-melting-point polyester yarns are interspersed in the low-melting-point molten structure, and the hot-melt fibers in the sea-island high-elastic yarns are melted after shaping treatment to fix the fluff.

[0028] Wherein, the warp yarn is 55D / 180F DTY yarn; the specification of the low-melting-point polyester yarn is 35D / 144f, and the specification of the high-melting-point polyester yarn is 20D / 36f.

[0029] The melting points of the high-melting-point polyester yarn and the high-elastic fiber are higher than 200°C, and more specifically, higher than 220°C.

[0030] The weft yarn is 50D / 24F DTY yarn. After opening, the specification of the island part of the sea-island high elastic yarn is 35D / 288f. After opening, the fibers in the yarn are spread out and fluffy, making it easier to raise the nap.

[0031] Among them, the temperature of the shaping treatment is 170-200℃.

[0032] The production process of the high-density elastic non-woven fabric comprises fabric weaving, open-width washing, fiber opening, low-temperature drying, napping, dyeing and shaping in sequence; the shaping temperature is 170-200°C.

[0033] Specifically, the production process of the high-density elastic non-woven fabric comprises the following steps:

[0034] (1) Fabric weaving: warp yarn and weft yarn are used to weave grey fabric according to satin weave; the warp yarn is air-covered yarn, which has low-melting point polyester yarn as the sheath and high-melting point polyester yarn as the core yarn; the weft yarn is sea-island high-elastic yarn; the island part of the sea-island high-elastic yarn includes hot-melt fiber and high-elastic fiber;

[0035] (2) Open-width washing: The grey fabric woven in step (1) is subjected to open-width continuous washing in an open-width washing machine, and the water temperature of the open-width washing process is set at 60-70° C.

[0036] (3) Fiber opening: The grey cloth after open-width water washing is sequentially passed through a fiber opening tank containing a fiber opening agent at temperatures of 60°C, 80°C, 90°C, 90°C, and 60°C;

[0037] (4) Low temperature drying: The grey cloth after fiber opening is dried at a low temperature of 130°C;

[0038] (5) Napping: The grey cloth is napped using a napping machine to cut off the long weft floating lines to form fluff;

[0039] (6) Dyeing: Place the blank in a dyeing machine for dyeing at a temperature of 130° C. for 30 minutes;

[0040] (7) Shaping: The dyed grey cloth is shaped using a setting machine with a setting temperature of 170-200°C, a machine speed of 30m / min, and a width of 145cm.

[0041] Example 1

[0042] The high-density elastic non-woven fabric of Example 1 is woven with warp yarn and weft yarn according to the satin weave, and is subjected to fiber opening, napping and shaping treatment; the warp yarn is an air-coated yarn, which has low-melting point polyester yarn as the sheath and high-melting point polyester yarn as the core yarn; the weft yarn is an island-in-the-sea high-elastic yarn. The warp yarn is 55D / 180F DTY yarn; the specification of the low-melting point polyester yarn is 35D / 144f, and the specification of the high-melting point polyester yarn is 20D / 36f. The weft yarn is 50D / 24F DTY yarn; the sea part of the island-in-the-sea high-elastic yarn is dissolved after fiber opening treatment, and the island part of the island-in-the-sea high-elastic yarn includes hot-melt fiber and high-elastic fiber. The melting point of the low-melting point polyester yarn and the hot-melt fiber is 150°C. The melting point of the high-melting point polyester yarn and the high-elastic fiber is 255°C. The satin weave has a weft float. The fabric has a low-melting-point polyester filament melt structure and a fluff structure after napping and shaping treatment, the high-melting-point polyester filament is interspersed in the low-melting-point molten structure, and the hot-melt fiber in the sea-island high-elastic yarn is melted after shaping treatment to fix the fluff.

[0043] After opening, the specifications of the island part of the sea-island high-elastic yarn are 35D / 288f. After opening, the fibers in the yarn are spread out and fluffy, making it easier to raise the nap.

[0044] In this embodiment, the sea-island high elastic yarn is a water-soluble sea-island high elastic yarn, and the sea portion thereof is PVA; the hot-melt fiber in the sea-island high elastic yarn is PET, and the high elastic fiber is PTT.

[0045] The temperature of the shaping treatment is 180°C.

[0046] The production process of the high-density elastic non-woven fabric comprises fabric weaving, open-width washing, fiber opening, low-temperature drying, napping, dyeing and shaping in sequence.

[0047] Specifically, the production process of the high-density elastic non-woven fabric comprises the following steps:

[0048] (1) Fabric weaving: warp yarn and weft yarn are used to weave grey fabric according to satin weave; the warp yarn is air-covered yarn, which has low-melting point polyester yarn as the sheath and high-melting point polyester yarn as the core yarn; the weft yarn is sea-island high-elastic yarn; the island part of the sea-island high-elastic yarn includes hot-melt fiber and high-elastic fiber;

[0049] (2) Open-width washing: The grey fabric woven in step (1) is subjected to open-width continuous washing in an open-width washing machine, and the water temperature of the open-width washing process is set at 60-70° C.

[0050] (3) Fiber opening: The grey cloth after being washed with water is sequentially passed through a fiber opening tank containing a fiber opening agent at temperatures of 60°C, 80°C, 90°C, 90°C, and 60°C; the fiber opening agent is water;

[0051] (4) Low temperature drying: The grey cloth after fiber opening is dried at a low temperature of 130°C;

[0052] (5) Napping: The grey cloth is napped using a napping machine to cut off the long weft floating lines to form fluff;

[0053] (6) Dyeing: Place the blank in a dyeing machine for dyeing at a temperature of 130° C. for 30 minutes;

[0054] (7) Shaping: The dyed grey cloth is shaped using a setting machine with a setting temperature of 180°C, a machine speed of 30 m / min, and a width of 145 cm.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-density elastic non-woven fabric, characterized in that: The fabric is woven with warp yarn and weft yarn according to satin weave, and is subjected to fiber opening, napping and shaping treatments; the warp yarn is air-coated yarn, which has low-melting-point polyester yarn as the sheath and high-melting-point polyester yarn as the core yarn; the weft yarn is sea-island high-elastic yarn; the sea part of the sea-island high-elastic yarn is dissolved after fiber opening treatment, and the island part of the sea-island high-elastic yarn includes hot-melt fiber and high-elastic fiber; the satin weave has a weft floating length; the melting points of the low-melting-point polyester yarn and the hot-melt fiber are lower than 180°C; after the napping and shaping treatments, the fabric forms a low-melting-point polyester yarn molten structure and a fluff structure, the high-melting-point polyester yarn is interspersed in the low-melting-point molten structure, and the hot-melt fiber in the sea-island high-elastic yarn is melted to fix the fluff after shaping treatment.

2. The high-density elastic non-woven fabric according to claim 1, characterized in that: The warp yarn is 55D / 180F DTY yarn; the specification of the low-melting-point polyester yarn is 35D / 144f, and the specification of the high-melting-point polyester yarn is 20D / 36f.

3. The high-density elastic non-woven fabric according to claim 1, characterized in that: The melting points of the high-melting-point polyester yarn and the high-elastic fiber are higher than 200°C.

4. The high-density elastic non-woven fabric according to claim 1, characterized in that: The weft yarn is 50D / 24F DTY yarn. After opening, the specification of the island part of the sea-island high elastic yarn is 35D / 288f.

5. The high-density elastic non-woven fabric according to claim 1, characterized in that: The temperature of the shaping treatment is 170-200°C.

6. The high-density elastic non-woven fabric according to claim 1, characterized in that: The sea part of the sea-island high-elastic yarn is PVA, the hot-melt fiber in the sea-island high-elastic yarn is PET, and the high-elastic fiber is PTT.

7. A production process for the high-density elastic non-woven fabric according to any one of claims 1 to 6, characterized in that: The process includes fabric weaving, open-width washing, fiber opening, low-temperature drying, napping, dyeing and shaping in sequence; the shaping temperature is 170-200°C.

8. The production process of high-density elastic non-woven fabric according to claim 7, characterized in that: The steps include: (1) Fabric weaving: warp yarn and weft yarn are used to weave grey fabric according to satin weave; the warp yarn is air-covered yarn, which has low-melting point polyester yarn as the sheath and high-melting point polyester yarn as the core yarn; the weft yarn is sea-island high-elastic yarn; the island part of the sea-island high-elastic yarn includes hot-melt fiber and high-elastic fiber; (2) Open-width washing: The grey fabric woven in step (1) is subjected to open-width continuous washing in an open-width washing machine, and the water temperature of the open-width washing process is set at 60-70° C. (3) Fiber opening: The grey cloth after open-width water washing is sequentially passed through a fiber opening tank containing a fiber opening agent at temperatures of 60°C, 80°C, 90°C, 90°C, and 60°C; (4) Low temperature drying: The grey cloth after fiber opening is dried at a low temperature of 130°C; (5) Napping: The grey cloth is napped using a napping machine to cut off the long weft floating lines to form fluff; (6) Dyeing: Place the blank in a dyeing machine for dyeing at a temperature of 130° C. for 30 minutes; (7) Shaping: The dyed grey cloth is shaped using a setting machine with a setting temperature of 170-200°C, a machine speed of 30m / min, and a width of 145cm.