TWM641163U - Low carbon waterproof fabric - Google Patents

Abstract

The invention provides a waterproof fabric, which is a double-layer fabric structure, wherein the weft yarns of the double-layer fabric are easy-shrinkable yarns, and the sum of the warp density and the weft density of the double-layer fabric is at least 500. In this creation, the waterproof fabric has a waterproof function through the application of double-layer cloth, easy-to-shrink yarn and increased strip density, and because the surface of the waterproof fabric does not have a waterproof coating/membrane layer, its air permeability is good . In addition, the waterproof fabric of the invention has simple processing procedures, can achieve the effect of reducing carbon emissions, and has the advantage of low cost.

Description

Low Carbon Waterproof Fabric

This creation is about a fabric, in particular a waterproof fabric with a double layer structure.

In recent years, due to the increasing demand for functional fabrics, many companies and research centers have driven innovative research and development, especially for the needs of different fields such as outdoor activities, transportation, protection, health care, and agriculture. Various functional fabrics such as antibacterial, anti-ultraviolet or temperature regulation, among them, water repellency is one of the indispensable functions in outdoor textiles.

In the known prior art, the functional clothing that usually emphasizes windproof and waterproof usually forms a film layer on the surface of the fabric by coating, or strengthens the functionality of the fabric by laminating. However, the dial formed by the coating Water-repellent fabrics generally have disadvantages such as poor cold resistance, poor washing resistance, and easy degumming; water-repellent fabrics formed by lamination generally have problems such as poor fire resistance and environmental pollution.

Fluorine-based water-repellent agents with fluorine-containing groups are often used in water-repellent processing. By treating fiber products with water-repellent agents, fiber products with water-repellent properties can be obtained on the surface. Water-repellent agents with fluoroalkyl groups are not only expensive, but also difficult to decompose in the natural environment, so they have a greater load on the environment.

Therefore, it is necessary to provide a novel waterproof fabric to solve the existing problems of conventional technologies.

In view of this, the purpose of this creation is to provide a waterproof fabric, which makes the waterproof fabric have a waterproof function by applying double-layer cloth, easy-to-shrink yarn and increasing the density, and because the surface of the waterproof fabric does not have a waterproof coating / film layer, so its breathability is good.

In order to achieve the above purpose, this creation provides a waterproof fabric, which includes: a first tissue layer, which is formed by interweaving a plurality of warp yarns and a plurality of weft yarns, wherein the warp yarns of the first tissue layer and the first tissue layer The intersections of the weft yarns form a plurality of longitudinal gaps and a plurality of transverse gaps, the weft yarns of the first weave layer are easily shrinkable yarns; and a second weave layer is formed by interweaving a plurality of warp yarns and a plurality of weft yarns , wherein the warp yarns of the second tissue layer and the weft yarns of the second tissue layer are respectively located in the longitudinal gaps and the transverse gaps, the weft yarns of the second tissue layer are easily shrinkable yarns, Wherein the first weave layer and the second weave layer are interlaced to form a fabric, and the sum of the warp density and the weft density of the fabric is at least 500.

In an embodiment of the invention, the cloth is processed by a calendering process.

In an embodiment of the invention, the sum of the warp density and the weft density of the cloth is between 500 and 1000.

In an embodiment of the invention, the sum of the warp density and the weft density of the cloth is between 500 and 700.

In an embodiment of the invention, the denier numbers of the warp yarns and the weft yarns of the first weave layer and the warp yarns and the weft yarns of the second weave layer are all between 20D and 150D.

In an embodiment of the present invention, the warp yarns of the first tissue layer and the warp yarns of the second tissue layer use yarns with a denier number of 50D, and the weft yarns of the first tissue layer and the warp yarns of the second tissue layer The weft yarns of the second tissue layer are easy-to-shrink yarns with a denier number of 50D.

In an embodiment of the present invention, the yarn is polyester yarn, and the easily shrinkable yarn is easily shrinkable polyester yarn polyurethane fiber.

In one embodiment of the invention, the warp yarns and the weft yarns of the first tissue layer and the warp yarns and the weft yarns of the second tissue layer include polyester fibers, polyamide fibers, cotton fibers , polypropylene fiber and its blended fibers.

In an embodiment of the present invention, both the first weave layer and the second weave layer are a plain weave or a twill (checkered) weave.

In an embodiment of the invention, the warp yarns and the weft yarns of the first weave layer and the warp yarns and the weft yarns of the second weave layer are water-repellent yarns.

In an embodiment of the present invention, the cloth body is processed through a water-repellent process.

In an embodiment of the present invention, the shrinkage rates of the weft yarns of the first weave layer and the weft yarns of the second weave layer are both between 8% and 15%.

Compared with the previous technology, the waterproof fabric provided by this creation uses double-layer cloth, easy-to-shrink yarn and increases the density, so that the waterproof fabric has a waterproof function, and because the surface of the waterproof fabric does not have a waterproof coating/ Membrane layer, so its breathability is good. In addition, the waterproof fabric of the invention has simple processing procedures, can achieve the effect of reducing carbon emissions, and has the advantage of low cost.

100: waterproof fabric

X11~X18: Weft yarn of the first weave layer

Y11~Y18: warp yarn of the first weave layer

X21~X28: the weft yarn of the second tissue layer

Y21~Y28: the warp of the second weave layer

P: overlapping intersection

A-A': hatching

BB': section line

〔Fig. 1〕 is the organization schematic diagram of waterproof fabric in an embodiment of this creation.

[ FIG. 2 ] is a schematic cross-sectional view taken along the section line AA' shown in FIG. 1 .

[ Fig. 3 ] is a schematic cross-sectional view taken along the section line BB' shown in Fig. 1 .

In order to explain in detail the technical content, purpose and effect of this creation, the following examples are given together with drawings to explain in detail.

This creation provides a waterproof fabric, which includes a first tissue layer and a second tissue layer, the first tissue layer and the second tissue layer are interlaced to form a cloth body, and the warp density and weft density of the cloth body The sum is at least 500. In some embodiments, the sum of the warp density and weft density of the fabric is between 500 and 1000, preferably between 500 and 700. The first tissue layer is formed by interweaving a plurality of warp yarns and a plurality of weft yarns, wherein the intersections of the warp yarns of the first tissue layer and the weft yarns of the first tissue layer form a plurality of longitudinal gaps and a plurality of transverse gap. The second tissue layer is also interwoven by a plurality of warp yarns and a plurality of weft yarns, wherein the warp yarns of the second tissue layer and the weft yarns of the second tissue layer are respectively located in the longitudinal gaps and the in the horizontal gap. The weft yarns of the first weave layer and the weft yarns of the second weave layer are easy-shrinkable yarns, and the shrinkage rate is between 8% and 15%.

Continuing on, focusing on the interlacing of the first tissue layer and the second tissue layer of the waterproof fabric, here, please refer to FIGS. 1 to 3. FIG. tissue as an example); Fig. 2 is a schematic cross-sectional view along the section line A-A' shown in Fig. 1; Fig. 3 is a schematic cross-sectional view along the section line BB' shown in Fig. 1, wherein the label X11 ~X18 are the weft yarns of the first weave layer; Y11~Y18 are the warp yarns of the first weave layer; and X21~X28 are the warp yarns of the second weave layer The weft yarns; the labels Y21~Y28 are the warp yarns of the second tissue layer; the label P is the overlapping and interlacing of the first tissue layer and the second tissue layer.

In some embodiments, the warp yarns and the weft yarns of the first tissue layer and the warp yarns and the weft yarns of the second tissue layer include, but are not limited to, polyester fibers, polyamide fibers, Cotton fibers, polypropylene fibers and their blended fibers (such as T/C, N/C), etc. The denier numbers of the warp yarns and the weft yarns of the first tissue layer and the warp yarns and the weft yarns of the second tissue layer are all between 20D and 150D. In a preferred embodiment of the present creation, the warp yarns of the first tissue layer and the warp yarns of the second tissue layer are polyester yarns (nylon, cotton or blended fibers such as nylon, cotton or blended fibers such as T/C, N/C), the weft yarns of the first tissue layer and the weft yarns of the second tissue layer are easy-to-shrink polyester yarn polyurethane fibers (nylon, cotton or blended fibers with a denier number of 50D) , such as T/C, N/C).

In a specific embodiment of this creation, for example, the machine used can be a plain weaving air-jet (water-jet) loom for weaving. The yarn is divided into upper and lower layers while weaving. Superior to ordinary yarns, the yarns are arranged more tightly. The warp and weft directions are all shortened during dyeing and finishing, so that the entire weave can reach a state where the sum of warp density and weft density is 500 to 700 (more than 500).

Further, if it is necessary to strengthen the waterproof ability of the produced waterproof fabric, preferably, a water-repellent agent (such as an environmentally friendly water-repellent agent (ie, fluorine-free water-repellent agent)) can be used to treat the yarn during yarn production. Water-repellent processing; or, adding a water-repellent agent (such as an environmentally friendly water-repellent agent) to perform water-repellent processing on the cloth body during dyeing and finishing.

Continuing, this creation uses the shrinkage characteristics of the easy-shrinkable yarn combined with increasing the density, so that the waterproof fabric of this creation produces a lotus leaf effect to achieve the effect of bionic waterproofing, and, further, if it is necessary to strengthen the waterproof ability of the waterproof fabric (that is, water-repellent ability), all the yarns can be pre-water-repellent, or the cloth body can be water-repellent, so that it has both physical water repellency and chemical water repellency. The waterproof effect is even better.

Finally, the above-mentioned cloth is processed by calendering, and the finished cloth is subjected to this calendering to deform the yarn, and then fill the remaining gaps, so that the density of the entire waterproof fabric is smaller than water molecules. The function of allowing air to pass through some micro-spaces achieves the waterproof, moisture-permeable and breathable function of the single fabric.

In some embodiments, JIS L 1099 B1 test (water pressure resistance test) and ASTM D737-2018 test (air permeability test) are carried out on the waterproof fabric of the present creation, and the test results are in the order of 300-2000g/m ² ‧24 and between 0.1-1 CFM.

As mentioned above, the waterproof fabric of the present creation is a double-layer cloth structure (that is, the first tissue layer and the second tissue layer), wherein the weft yarns of the double-layer cloth are all easy-shrinkable yarns, and the warp and density of the double-layer cloth The sum of the weft density and the weft density is at least 500. By applying double-layer cloth, easy-to-shrink yarn and increasing the thread density, the waterproof fabric has a waterproof function, and because the surface of the waterproof fabric does not have a waterproof coating or a waterproof film layer, Therefore, the waterproof fabric has a good air-permeable effect. In addition, the processing procedure of the waterproof fabric of this creation is quite simple, which can achieve the effect of reducing carbon emissions, and the cost of the materials used in it is low, so it has the advantage of low cost.

Although this creation has been disclosed with preferred embodiments, it is not intended to limit this creation. Anyone who is familiar with this art can make various changes and modifications without departing from the spirit and scope of this creation. Therefore, this creation The scope of protection shall be determined by the scope of the attached patent application.

100: waterproof fabric

X11~X18: Weft yarn of the first weave layer

Y11~Y18: warp yarn of the first weave layer

X21~X28: the weft yarn of the second tissue layer

Y21~Y28: the warp of the second weave layer

P: overlapping intersection

A-A': hatching

BB': section line

Claims (10)

A waterproof fabric comprising: A first weave layer, formed by interweaving a plurality of warp yarns and a plurality of weft yarns, wherein the intersections of the warp yarns of the first weave layer and the weft yarns of the first weave layer form a plurality of longitudinal gaps and a plurality of transverse gaps, the weft yarns of the first weave layer are shrinkable yarns; and A second weave layer, formed by interweaving a plurality of warp yarns and a plurality of weft yarns, wherein the warp yarns of the second weave layer and the weft yarns of the second weave layer are respectively located in the longitudinal gaps and the transverse In the gap, the weft yarns of the second tissue layer are easily shrinkable yarns, Wherein the first weave layer and the second weave layer are interlaced to form a fabric, and the sum of the warp density and the weft density of the fabric is at least 500. The waterproof fabric as claimed in claim 1, wherein the fabric is processed by a calendering process. The waterproof fabric according to claim 1, wherein the sum of the warp density and the weft density of the fabric is between 500 and 1000. The waterproof fabric as described in claim 1, wherein the denier numbers of the warp yarns and the weft yarns of the first tissue layer and the warp yarns and the weft yarns of the second tissue layer are all between 20D and 150D between. The waterproof fabric as described in claim 4, wherein the warp yarns of the first tissue layer and the warp yarns of the second tissue layer are yarns with a denier number of 50D, and the weft yarns of the first tissue layer The weft yarns of the second tissue layer are easy-to-shrink yarns with a denier number of 50D. The waterproof fabric according to claim 5, wherein the yarn is polyester yarn, and the easily shrinkable yarn is easily shrinkable polyester yarn polyurethane fiber. The waterproof fabric as described in claim 1, wherein the components of the warp yarns and the weft yarns of the first tissue layer and the warp yarns of the second tissue layer and the weft yarns include polyester fibers, polyamide fibers, Cotton fibers, polypropylene fibers and their blends. The waterproof fabric according to claim 1, wherein the first weave layer and the second weave layer are both a plain weave or a twill weave. The waterproof fabric as described in claim 1, wherein the warp yarns and the weft yarns of the first tissue layer and the warp yarns and the weft yarns of the second tissue layer are water-repellent yarns. The waterproof fabric as claimed in claim 1, wherein the fabric is treated with a water-repellent treatment.

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