Natural fiber woven environment-friendly sun-shading fabric and production process thereof

Abstract

The invention relates to the technical field of sun-shading fabrics, in particular to a natural fiber woven environment-friendly sun-shading fabric. The fabric comprises a weaving layer formed by weaving warp yarns and weft yarns, wherein at least one surface of the weaving layer is coated with a transparent coating layer with a flame-retardant function; the weaving layer is of a plain weave structure of a three-dimensional structure formed by the warp yarns and the weft yarns interwoven with the warp yarns in an up-and-down mode; the warp yarns are low-melting yarns; the weft yarns comprise low-melting yarns, and hemp fiber yarns which are woven with the low-melting yarns alternately according to the proportion of 1 to 1; the fineness of the low-melting yarns is 40-80D; the wire diameter of the hemp fiber yarns is 0.18-0.65 mm; and the density of the weft yarns is 45-86 pieces per inch, the gram weight of the fabric is 140-182g/m <2>, and the thickness of the fabric is 0.38-0.56 mm. The invention further discloses a production process of the natural fiber woven environment-friendly sun-shading fabric. The preparation method is simple, the production cost is low, and the sun-shading fabric is good in ultraviolet resistance and antibacterial performance, belongs to an environment-friendly fabric, is environmentally friendly, smooth in hand feeling and soft, has the three-dimensional aesthetic feeling and is worthy of being widely applied and popularized.

Description

technical field [0001] The invention relates to the technical field of sunshade fabrics, in particular to an environment-friendly sunshade fabric woven with natural fibers and a production process thereof. Background technique [0002] With the improvement of people's awareness of environmental protection and the pursuit of low-carbon life, sunshade fabrics are more and more widely used in office buildings, hotel offices, factories, conference rooms, multimedia rooms, lecture halls, laboratories, X-ray rooms, photo Indoor places with strict shading requirements such as washrooms and theaters. As the name suggests, sunshade fabrics refer to fabrics used to block the sun's glare and harmful light from invading. It has some functions that other fabrics do not have, such as adjusting indoor temperature, adjusting natural light, perspective, etc., can effectively block ultraviolet rays, and is conducive to the generation of yellow light. [0003] Existing sun-shading fabrics ar...

AI Technical Summary

Problems solved by technology

There are disadvantages in the sunshade fabrics produced by polymer composite materials: First, in order to make the sunshade fabrics have anti-ultraviolet, antibacterial and other properties, it is necessary to coat the sunshade fabrics or fibers woven into sunshade fabrics to absorb or reflect ultraviolet rays, and Coatings such as antibacterial agents not only complicate the production process, but also have poor degradation ability of the fabric, which is not friendly to the environment

Second, since the coating layer of polyester fiber is soft PVC, the addition of plasticizer can significantly reduce the limiting oxygen index, reduce the flame retardant efficiency, and release smoke and harmful gases when burning.

[0008] Although the above-mentioned patents all have anti-ultraviolet and antibacterial functions, and the functions of anti-ultraviolet and antibacterial are all obtained by adding ultraviolet absorbers and antibacterial agents, which not only makes the production process of sunshade fabrics cumbersome, but also has high preparation costs and is not environmentally friendly.

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