TWI592531B - Air-permeable fabric being woven by composite fibers - Google Patents

Description

Breathable composite fiber fabric

A fiber fabric, in particular a composite fiber fabric having gas permeability.

Prepreg or impregnated fiber fabric is the most commonly used high-performance composite material, and is widely used in sports equipment, shoe materials and the like. Generally, when fabricating a fiber prepreg or impregnating a fiber fabric, the fibers are first woven or arranged into a fiber cloth, and then the fiber cloth is covered or immersed in a heated resin, and the resin is composited on the fiber cloth to form a fiber prepreg or It is impregnated with fiber fabric.

The prepreg or the impregnated fiber fabric produced by the above method is completely covered or immersed in the slits or holes of the fiber cloth, so that the prepreg or the impregnated fiber fabric is relatively lack of gas permeability, and is suitable for sports. Items such as equipment or shoe materials that need to emphasize breathable comfort properties, although the need for additional perforation or structural adjustment to achieve breathability, but often affect the original material strength, there are still restrictions on its use.

In order to solve the disadvantages of insufficient permeability of the prepreg or the impregnated fiber fabric, the present invention provides a breathable composite fiber fabric which is woven by a composite fiber having an inner and outer structure, and the composite fibers are intertwined. Where the fusion bonding is performed, a plurality of gas permeable gaps are formed at the unbonded adjacent unbonded composite fibers, and the composite fiber comprises an inner fiber layer and a coating outer layer, the coating outer layer at least partially covering the outer portion of the inner fiber layer The surface of the inner fiber layer has a mechanical property and a melting point higher than the outer layer of the coating, and the outer layer of the coating is tightly bonded to the composite fiber fabric that is in contact after being melted.

Wherein the inner fiber layer is a natural fiber or a rayon.

Wherein the covering outer layer is a thermoplastic elastomer, a thermoplastic rubber or a natural rubber.

Wherein the natural fiber comprises cotton fiber, hemp fiber or silk fiber, the rayon fiber is polyethylene, polypropylene, polyethylene terephthalate, polyester, nylon, thermoplastic polyurethane, polyvinyl chloride, carbon fiber or It is a glass fiber, and the thermoplastic elastomer is a thermoplastic polyurethane, a nylon elastomer or a styrene-based thermoplastic elastomer.

Wherein, the method for forming the inner and outer layers comprises ring spinning, rotor spinning, air-jet spinning, electrospinning, impregnation or forming the outer layer of the coating and the inner fiber layer by a co-extrusion process.

Wherein, the ventilated fiber fabric is further heat-cured to form a shoe upper, an insole, a bottom plate, a bag body, a bag body or a secondary wood having a gas permeable gap.

According to the above description, the present invention has the following advantages:

1. After the hot-press forming of the breathable composite fiber fabric of the present invention, the finished product naturally forms a plurality of gas permeable gaps or slits, so that the finished product can have high gas permeability, and no additional secondary processing is needed to form the venting holes, and the process is simple.

2. The process of the present invention is simple and the gas permeable gap of the gas permeable composite fiber fabric is naturally formed during the hot pressing process, so the present invention does not affect the structural support of the original fiber fabric relative to the technique of the secondary processing perforation.

3. The present invention has a plurality of gap perforations, and the formed breathable composite fiber fabric has the characteristics of light weight, thinness and air permeability, and can be widely applied to daily articles such as shoes, bags, and bags, and can also be applied to the side wood. medical supplies.

Referring to FIGS. 1 to 3, a preferred embodiment of the composite fiber of the breathable composite fiber fabric of the present invention comprises an inner fiber layer 10 and a coating outer layer 20, the outer covering layer 20 at least partially covering the inner fiber layer. The outer surface of 10 forms the inner and outer double-layer structure state of the Core Shell.

Wherein, the material of the inner fiber layer 10 provides the overall structural strength of the gas permeable composite fiber fabric, and provides mechanical support for the gas permeable composite fiber fabric. The inner fiber layer 10 may be a natural fiber or a rayon fiber, and the natural fiber comprises cotton fiber, hemp fiber or silk fiber; the rayon fiber comprises polyethylene (Polyethylene, PE), polypropylene (polypropylene, PP), poly Polyethylene Terephthalate (PET), Polyester, Nylon, Thermal Polyurethane (TPU), Polyvinyl Chloride (PVC), Carbon Fiber or It is a glass fiber (Glass Fiber). The covering outer layer 20 is a material which has viscosity or adhesion after heating, and the so-called adhesive or adhesive means that when the coating outer layer 20 is heated and coated on a part or the whole surface of the inner fiber layer 10 The adhesive outer layer 20 can be tightly bonded to the inner fiber layer 10, and is not easily peeled off or peeled off. The outer cover 20 can be a thermoplastic elastomer (TPE) or a thermoplastic rubber (TPR). Or Natural Rubber; the thermoplastic elastomer (TPE) may be Thermoplastic Polyurethane (TPU), Nylon Elastomer (PAE), Styrene Series Thermoplastic Elastomer (SBCs); The body comprises styrene-ethylene-butylene-styrene block copolymer (SEBS) or styrene-butadiene-styrene block copolymer (SBS).

The composite fiber manufacturing method for forming the above-mentioned gas permeable composite fiber fabric includes Ring Spinning, Roter Spinning, Jet Spinning, Electrostatic Spinning, impregnation or The cladding outer layer 20 and the inner fiber layer 10 are formed into a core shell structure by a co-extrusion process.

The composite fiber of the gas permeable composite fiber fabric may be coated with the outer layer 20 except for the single inner fiber layer 10. The outer layer 20 may be coated with a plurality of inner fiber layers 10 to further enhance the composite fiber of the present invention. strength.

In the present invention, after the composite fiber of the above-mentioned shell-ball structure is woven into a gas permeable composite fiber fabric, the gas permeable composite fiber fabric is further heat-cured into a desired shape, such as hot pressing into a shoe upper, an insole, a middle The bottom plate or the daily necessities such as bags and bags can also be applied to the medical supplies of the secondary wood. When the heating, the outer layer 20 of the outer surface of the gas permeable composite fiber fabric will reproduce adhesiveness or adhesion, so that the composite fiber of the fabric is bonded or bonded at the intersection of the composite fibers, and the composite fibers are not overlapped to form a plurality of fine ventilation. Clearance 30 or pores. After the hot pressing process of the invention, the finished product can naturally form a plurality of gas permeable gaps 30, so that the finished product of the invention has high gas permeability and relatively good supporting strength, and the finished product does not need additional processing to form venting holes, and the manufacturing process can be reduced. cost.

According to the above description, the present invention has the following advantages:

1. After the thermocompression molding of the composite fiber fabric of the present invention, the finished product naturally forms a plurality of gas permeable gaps or pores, so that the finished product has high gas permeability, and no additional processing is required to form the venting holes, and the process is relatively simple and simple.

2. The process of the present invention is simple, and the gas permeable gap of the gas permeable composite fiber fabric is naturally formed during the hot pressing process, so the present invention does not affect the structural support of the original fiber fabric relative to the technique of additionally processing the perforation.

3. The present invention has a plurality of gap perforations, and the formed breathable composite fiber fabric has the characteristics of light weight, thinness and air permeability, and can be widely applied to daily articles such as shoes, bags, and bags, and can also be applied to the side wood. medical supplies.

10‧‧‧ inner fiber layer
20‧‧‧ coated outer layer
30‧‧‧ Ventilation gap

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a preferred embodiment of a breathable composite fiber fabric of the present invention. Figure 2 is a top plan view of a preferred embodiment of a breathable composite fiber fabric of the present invention. Figure 3 is a cross-sectional view taken along line A-A of Figure 2;

10‧‧‧ inner fiber layer

20‧‧‧ coated outer layer

30‧‧‧ Ventilation gap

Claims (6)

A gas permeable composite fiber fabric woven by a composite fiber having an inner and outer structure, wherein the composite fibers at the intersection of two and two are fused, and a plurality of adjacent unbonded composite fibers form a plurality of venting gaps The composite fiber comprises an inner fiber layer and a coating outer layer, the outer layer at least partially covering an outer surface of the inner fiber layer, wherein the inner fiber layer has a material mechanical property and a melting point higher than the outer layer of the coating, the package The outer layer is melted to tightly bond the composite fibers that are in contact. The breathable composite fiber fabric of claim 1, wherein the inner fiber layer is a natural fiber or a rayon fiber. The breathable composite fiber fabric of claim 1 is a thermoplastic elastomer, a thermoplastic rubber or a natural rubber. The breathable composite fiber fabric of claim 2, wherein the natural fiber comprises cotton fiber, hemp fiber or silk fiber, and the rayon fiber is polyethylene, polypropylene, polyethylene terephthalate, polyester, Nylon, thermoplastic polyurethane, polyvinyl chloride, carbon fiber or glass fiber, the thermoplastic elastomer is a thermoplastic polyurethane, a nylon elastomer or a styrene thermoplastic elastomer. The gas-permeable composite fiber fabric of claim 1 or 2 or 3, wherein the method for forming the inner and outer layers comprises ring spinning, rotor spinning, air-jet spinning, electrospinning, impregnation or The coated outer layer and the inner fibrous layer are formed by a co-extrusion process. The breathable composite fiber fabric of claim 5 is further heat-cured to form a shoe upper, an insole, a midsole, a bag, an inclusion or a secondary wood having a gas permeable gap.