TWM592444U - Heat shielding fabric - Google Patents

Abstract

A heat shielding fabric weaved from wraps and wefts is provided. The wraps are heat shielding yarns. The heat shielding fabric has a satin structure, and a thickness of the heat shielding fabric is in a range from 0.3 mm to 0.6 mm.

Description

Heat shielding fabric

This disclosure is about a heat shielding fabric.

With the improvement of living standards in society today, people's demand for functional textiles is getting higher and higher, and with the continuous emergence of various functional textiles, the development of functional textiles with specific purposes is becoming more and more perfect.

In recent years, due to the greenhouse effect and global warming, the average temperature has been continuously increasing. Facing the increasingly hot climate, various shade textiles are more focused on the blocking of light and the shielding of harmful radiation, in order to enhance the insulation effect and achieve protection. Therefore, how to effectively improve the thermal blocking performance and radiation shielding performance of textiles has become a very important issue at present.

This disclosure provides a heat shielding fabric.

According to an embodiment of the present disclosure, the heat shielding fabric is interwoven with warp yarns and weft yarns, wherein the warp yarns are heat shielding yarns. The heat shielding fabric has a satin structure, and the thickness of the heat shielding fabric is between 0.3 mm and 0.6 mm.

In an embodiment of the present disclosure, the weft yarn is a heat shielding yarn.

In an embodiment of the present disclosure, the specification of the warp yarn is between Between 45d/48f and 200d/48f.

In an embodiment of the present disclosure, the specification of the weft yarn is between 45d/48f and 200d/48f.

In an embodiment of the present disclosure, the base material of the heat shielding yarn is polyethylene terephthalate (PET).

In an embodiment of the present disclosure, the heat shielding yarn includes near infrared reflecting powder and ultraviolet shielding particles.

In an embodiment of the present disclosure, the weaving density of the warp yarn is between 180 pieces/inch and 220/inch, and the weaving density of the weft yarn is between 90 pieces/inch and 110/inch.

In an embodiment of the present disclosure, the satin structure includes five 2-fly satin structures, five 3-fly satin structures, six variable satin structures, seven 2-fly satin structures, and seven 3-fly satin structures. Or seven 5 flying satin structures.

In an embodiment of the present disclosure, the porosity of the heat shielding fabric is between 45% and 50%.

According to an embodiment of the present disclosure, the heat shielding fabric has six variable satin textures woven alternately by warp yarns and weft yarns, wherein the respective specifications of the warp yarns and weft yarns are between 45d/48f to 200d/48f, and the weave density of the warp yarns It is between 180 pieces/inch to 220 pieces/inch, and the weaving density of the weft yarn is between 90 pieces/inch to 110 pieces/inch. The warp yarn is a heat shielding yarn. The base material of the heat shielding yarn is polyethylene terephthalate and contains near infrared reflecting powder and ultraviolet shielding particles. The thickness of the heat shielding fabric is between 0.3 mm and 0.6 mm.

According to the above embodiment of the present disclosure, since the heat shielding fabric has a satin structure, and its warp and weft yarns are doped with organic particles (for example, near red External reflective powder and/or ultraviolet shielding particles), so it can have better thermal insulation and ultraviolet radiation resistance.

100, 100a, 200 ‧‧‧ heat shielding fabric

102‧‧‧Warp

104, 104a‧‧‧ weft

106‧‧‧Near infrared reflective powder

108‧‧‧UV shielding particles

FIG. 1 is a schematic top view of a heat shielding fabric according to an embodiment of the present disclosure.

FIGS. 2A to 2F illustrate fabric texture diagrams of heat shielding fabrics according to some embodiments of the present disclosure.

FIG. 3 is a schematic top view of a heat shielding fabric according to another embodiment of the present disclosure.

FIGS. 4A to 4B show the fabric texture diagram of the heat shielding fabric of the comparative example.

In the following, a plurality of embodiments of the disclosure will be disclosed in a diagram. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit this disclosure. That is to say, in some embodiments of the present disclosure, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and elements will be shown in a simple schematic manner in the drawings.

The present disclosure provides a heat-shielding fabric, which can be used in homes, commercial offices, medical institutions, vehicles, and other places as a shade cloth curtain such as curtains, roller blinds, or pleated blinds. This disclosure by designing the heat shielding fabric as a satin knot Structure, and doped with functional particles (for example, near-infrared reflecting powder and/or ultraviolet shielding particles) to improve the thermal insulation and anti-ultraviolet radiation performance of the heat shielding fabric, thereby reducing the indoor ambient temperature and reducing the fan or Energy consumption of electrical products such as air conditioners for cooling.

FIG. 1 is a schematic top view of a heat shielding fabric 100 according to an embodiment of the present disclosure. The heat shielding fabric 100 is formed by alternately weaving warp yarns 102 and weft yarns 104. The specifications of the warp yarns 102 and weft yarns 104 may be between 45d/48f and 200d/48f, and the base materials of the warp yarns 102 and weft yarns 104 may be poly Ethylene terephthalate (polyethylene terephthalate, PET). It should be noted that when the base materials of the warp yarns 102 and the weft yarns 104 are the same, the heat shielding fabric 100 can have good recycling convenience. In some embodiments of the present disclosure, the surface shown in FIG. 1 (that is, the surface seen from above) can be used as the “light-facing surface” of the heat shielding fabric 100. In addition, in the narrative of this article, "light-facing surface" means the surface exposed to sunlight.

In some embodiments of the present disclosure, the warp yarn 102 of the heat shielding fabric 100 is a heat shielding yarn, and the weft yarn 104 is a general yarn that has not been modified. The specification of the heat shielding yarn may be between 45d/48f and 200d/48f, preferably between 45d/48f and 55d/48f. The heat shielding yarn may include near infrared reflecting powder 106 and/or ultraviolet shielding particles 108. The near-infrared reflecting powder 106 and the ultraviolet shielding particles 108 may each include organic ceramic powder or inorganic ceramic powder, but it is not intended to limit the present disclosure. The near-infrared reflecting powder 106 can reflect the near-infrared from the light-facing surface to block the thermal energy generated by the near-infrared radiation from penetrating the heat shielding fabric 100 to achieve the effect of heat insulation. The ultraviolet shielding particles 108 can absorb ultraviolet light from the light-facing surface to reduce ultraviolet radiation penetrating the heat shielding fabric 100. In some embodiments of the present disclosure, the near-infrared reflecting powder 106 and/or the ultraviolet shielding particles 108 may be mixed with a polyester carrier and subjected to kneading and granulation to form a functional fiber masterbatch with heat shielding effect. Next, the functional fiber mother particles are melt-spun under appropriate processing conditions to obtain a heat shielding yarn including infrared reflecting powder 106 and/or ultraviolet shielding particles 108.

FIGS. 2A to 2F illustrate fabric texture diagrams of the heat shielding fabric 100 according to some embodiments of the present disclosure. The heat shielding fabric 100 is woven by warp yarns and weft yarns in a satin weave. In some embodiments of the present disclosure, the heat shielding fabric 100 may have six variable satin structures (as shown in FIG. 2A), that is, the heat shielding fabric 100 is formed by passing one weft yarn under the five warp yarns. Then weave through a warp. In other embodiments of the present disclosure, the heat shielding fabric 100 may have five 2-fly satin structures (as shown in FIG. 2B) or five 3-fly satin structures (as shown in FIG. 2C), that is, heat The shielding fabric 100 is woven by passing a weft yarn under four warp yarns and then over a warp yarn. In other embodiments of the present disclosure, the heat shielding fabric 100 may have seven 2-fly satin structures (as shown in FIG. 2D), seven 3-fly satin structures (as shown in FIG. 2E), or seven 5-fly satin structures. The satin structure (as shown in FIG. 2F), that is, the heat shielding fabric 100 is woven by passing a weft yarn under six warp yarns and then passing over a warp yarn. However, the fabric structure of the present disclosure is not limited to the above, and the heat shielding fabric 100 may also have other common satin structures.

With the design of the satin structure, the exposed area of the warp yarns 102 of the heat shielding fabric 100 on the light side is larger than the exposed area of the weft yarns 104 on the light side (ie, the warp yarns 102 of the heat shielding fabric 100 have more Floating point), and because the warp yarns 102 of the heat shielding fabric 100 are heat shielding yarns, when the sun shines When the light-shielding surface of the heat-shielding fabric 100 is exposed, there is a greater chance that it will be reflected or absorbed by the heat-shielding yarn (ie, warp yarn) exposed to the light-facing surface, so as to achieve better heat insulation and ultraviolet radiation resistance. In addition, compared to the heat shielding fabric with a plain weave structure or a twill structure, the heat shielding fabric 100 with a satin texture structure can have a smoother surface, which helps the reflection of light, thereby achieving better heat insulation and resistance to ultraviolet radiation Effect.

In some embodiments of the present disclosure, the weaving density of the warp yarns 102 is between 180/inch and 220/inch, and the weaving density of the weft yarns is between 90/110 and 110/inch. In the case of weaving using yarns of the same specification, the heat shielding fabric 100 having a satin texture structure may have a larger weaving density than the heat shielding fabric having a plain texture structure or a twill structure. Therefore, the heat shielding fabric 100 having a satin structure can have a larger thickness (or weight) as a whole, so as to achieve a better heat insulation effect. In some embodiments of the present disclosure, the thickness of the heat shielding fabric 100 is between 0.3 mm and 0.6 mm. In addition, the porosity of the heat shielding fabric 100 is between 45% and 50%.

FIG. 3 is a schematic top view of a heat shielding fabric 100a according to another embodiment of the present disclosure. The difference between the heat shielding fabric 100a in FIG. 3 and the heat shielding fabric 100 in FIG. 1 is that their warp yarns 102 and weft yarns 104a are both heat shielding yarns, that is, their warp yarns 102 and weft yarns 104a both include near-infrared reflecting powder 106 and /Or ultraviolet shielding particles 108. In other words, all the yarns in the heat shielding fabric 100a have a heat shielding function, so that near infrared rays and ultraviolet rays to the smooth surface have a greater chance of being reflected or absorbed by the heat shielding fabric 100a, thereby achieving better heat insulation and Anti-ultraviolet radiation effect. In some embodiments of the present disclosure, the thickness of the heat shielding fabric 100a may be between 0.5 mm and 0.6 mm.

FIGS. 4A to 4B show a fabric weave diagram of the heat shielding fabric 200 of the comparative example. In the comparative example of FIG. 4A, the heat shielding fabric 200 has a plain weave structure, that is, the heat shielding fabric 200 is woven by passing a weft yarn under a warp yarn and then passing over a warp yarn. In the comparative example in FIG. 4B, the heat shielding fabric 200 has a 3/3 twill structure, that is, the heat shielding fabric 200 is woven by passing one weft yarn under the three warp yarns and then passing over the three warp yarns. .

In the following, the heat insulation test and the light reflection test will be conducted for the disclosed Examples 1 and 2 and Comparative Examples 1 to 4. The detailed description of each example and comparative example is shown in Table 1.

Table I

Experimental Example 1: Insulation test of heat shielding fabric

The heat shielding test of the heat shielding fabrics of the above examples and comparative examples was carried out by an illumination measuring instrument. The method of heat insulation test is to put the heat shielding fabric to work It was irradiated with a halogen lamp of 300 watts for 30 minutes, and the external solar heat gain coefficient (SHGC_ext) and indoor solar heat gain coefficient (SHGC_int) of the heat shielding fabric were measured according to the ISO 52022 standard. ) And surface temperature changes. It should be understood that the smaller the values of the outdoor solar radiation acquisition coefficient and the indoor solar radiation acquisition coefficient of the heat shielding fabric, the better the heat shielding fabric has. In addition, the measurement method of the surface temperature change of the heat shielding fabric is to irradiate the light-facing surface of the heat shielding fabric with a halogen lamp of 300 watts, and measure the back surface of the heat shielding fabric (that is, the surface relative to the light-facing surface) after 30 minutes )temperature. The test results are shown in Table 2.

Table II

As shown in Table 2, from the measurement results of the outdoor solar radiation acquisition coefficient and the indoor solar radiation acquisition coefficient, it can be seen that the thermal shielding fabrics with a satin texture structure have more Small coefficient value. In addition, from the measurement result of the temperature change of the fabric surface, it can be seen that the surface temperature change of the heat shielding fabric with a satin structure is also the smallest. In other words, the heat shielding fabric with satin structure can achieve better heat insulation effect. another In addition, since the warp yarns and the weft yarns of Example 2 are both heat shielding yarns, Example 2 can have better thermal insulation performance than Example 1 (only the warp yarns are heat shielding yarns).

Experimental Example 2: Light reflection test of heat shielding fabric

A light reflectance test is performed on the heat shielding fabrics of the above embodiments and comparative examples under the irradiation of light of different wavelength ranges (for example, visible light and sunlight) with a spectrum analyzer. The test results are shown in Table 3.

As shown in Table 3, the heat shielding fabric with a satin structure has better light reflectance under the irradiation of visible light and sunlight than the heat shielding fabric with a plain structure and a twill structure. In other words, the heat shielding fabric with satin structure can block more light, so as to achieve better heat insulation and ultraviolet radiation resistance.

In summary, the heat shielding fabric of the present disclosure has a satin structure woven by warp yarns and weft yarns alternately, and the warp yarns and/or weft yarns are heat shielding yarns containing near infrared reflecting powder and/or ultraviolet shielding particles. With the configuration of satin structure and heat shielding yarn, the heat shielding fabric can have good thermal insulation and anti-ultraviolet radiation performance, thereby reducing the indoor ambient temperature and reducing the energy consumption of electric appliances such as electric fans or air conditioners for cooling.

Although this disclosure has been disclosed as above by way of implementation, it is not intended to limit this disclosure. Anyone who is familiar with this skill should be able to make various changes and retouching within the spirit and scope of this disclosure, so the protection of this disclosure The scope shall be determined by the scope of the attached patent application.

100‧‧‧ Heat shielding fabric

102‧‧‧Warp

104‧‧‧Weft

106‧‧‧Near infrared reflective powder

108‧‧‧UV shielding particles

Claims (10)

A heat shielding fabric, which is woven by warp yarns and weft yarns alternately, wherein the warp yarns are heat shielding yarns, and the heat shielding fabric has a satin structure, and the thickness of the heat shielding fabric is between 0.3 mm and 0.6 mm . The heat shielding fabric according to claim 1, wherein the weft yarn is a heat shielding yarn. The heat shielding fabric according to claim 1, wherein the specification of the warp yarn is between 45d/48f and 200d/48f. The heat shielding fabric according to claim 1, wherein the specification of the weft yarn is between 45d/48f and 200d/48f. The heat shielding fabric according to claim 1, wherein the base material of the heat shielding yarn is polyethylene terephthalate (PET). The heat shielding fabric according to claim 1, wherein the heat shielding yarn includes near infrared reflecting powder and ultraviolet shielding particles. The heat-shielding fabric according to claim 1, wherein the weave density of the warp yarn is between 180 pieces/inch to 220 pieces/inch, and The weaving density of the weft yarn is between 90 pieces/inch and 110 pieces/inch. The heat shielding fabric according to claim 1, wherein the satin structure includes five 2 flying satin structures, five 3 flying satin structures, six variable satin structures, seven 2 flying satin structures, seven One 3 flying satin structure or seven 5 flying satin structures. The heat shielding fabric of claim 1, wherein the heat shielding fabric has a porosity between 45% and 50%. A heat-shielding fabric with six satin structures formed by alternating weaving of warp yarns and weft yarns, wherein the respective specifications of the warp yarns and the weft yarns are between 45d/48f to 200d/48f, and the weaving of the warp yarns The density is between 180 pieces/inch to 220 pieces/inch, and the weaving density of the weft yarn is between 90 pieces/inch to 110 pieces/inch. The warp yarn is a heat shielding yarn. The base material of the heat shielding yarn is polyethylene terephthalate and contains near infrared reflecting powder and ultraviolet shielding particles, and the thickness of the heat shielding fabric is between 0.3 mm and 0.6 mm.

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