TWI555890B - Yarns having infrared absorbing ability and textiles containing the yarns - Google Patents

Description

Yarn with infrared absorbing function and its textiles

The present invention relates to materials for yarns, and more particularly to yarns having infrared absorbing functions and textiles made therefrom.

In order to achieve a better warming effect of a general textile, it is usually achieved by increasing the warp and weft density or increasing the thickness of the textile, but these methods may deteriorate the breathability of the textile and increase the weight.

In addition, it is also possible to use animal down as a filling or use artificial hollow or porous fibers to make a textile to achieve a warm and lightweight effect. However, the clothes made thereof are highly bulky, causing inconvenience to the user.

It has been developed to add zirconia powder to textiles to achieve warmth, but the addition of zirconium carbide makes textiles dark black and expensive, and cannot meet the needs of low cost and warm textiles suitable for light colors.

The present disclosure provides a material of a yarn which can make the yarn have a function of absorbing infrared rays, and the textile made of the yarn is warm-proof and suitable for light-colored textiles, and can also achieve weight reduction and avoid excessive textiles. Fluffy, overcoming the above problems of the prior art.

In the embodiment of the present disclosure, a yarn having an infrared absorbing function is provided, comprising: a fiber constituting a yarn, the material of which comprises an acrylic fiber, a cellulose fiber or a combination thereof; and an infrared absorbing powder is added and dispersed in the fiber, Materials for absorbing infrared powder include gallium-doped zinc oxide, aluminum-doped zinc oxide, gallium-doped and aluminum-doped zinc oxide, or a combination thereof.

Further, the embodiment of the present disclosure further provides a textile having an infrared absorbing function, which comprises a plurality of yarns having an infrared absorbing function as described above.

The difference between the average visible light reflectance of the textile made of the yarn having the function of absorbing infrared rays and the textile without adding any powder is only about 2%, which means that the yarn with infrared absorbing function disclosed in the present disclosure is for textiles. There are few color changes and it can be applied to light-colored textiles.

The disclosure discloses that the infrared absorbing powder is added and dispersed in the fiber of the yarn, so that the yarn has the function of absorbing infrared rays, and the textile made of the yarn also has the function of absorbing infrared rays, thereby allowing the textile to It absorbs infrared light to achieve warmth and gives textiles the advantage of being lightweight and avoids excessive fluffiness of textiles.

Zinc oxide is a kind of semiconductor material. In order to improve its electrical or optical properties, it is usually doped with elements of Groups IIIA to VA. Zinc oxide or zinc oxide doped with Group IIIA to VA elements is usually used in industries related to the semiconductor industry. Upper, for example, a conductive material, a piezoelectric material, a gas detector, or a solar cell.

The absorbing infrared powder used in the embodiments of the present disclosure may be a gallium (Ga)-doped (Al)-doped aluminum (Al), gallium-doped (Ga)-doped (Al)-doped zinc oxide (ZnO) powder, Alternatively, in combination of the foregoing, the zinc oxide powder having the doping element may absorb infrared rays having a wavelength of about 780 nm or more.

The method for producing the infrared absorbing powder disclosed in the present disclosure may be: (1) preparing a mixed solution of a nitrate or a sulfate of zinc with a chloride or a sulfate of a doping element (including gallium or aluminum) at a concentration of 0.5 ml. /L~5.0ml/L, the doping element is added in an amount of 0.1% to 10.0% of the total weight of the zinc and the doping element; (2) the mixed salt solution and the ammonium hydrogencarbonate solution disposed in the step (1) are together Dropping into water, maintaining the temperature at 40 ° C, the pH is controlled at 7.0-7.5, while stirring vigorously, that is, the uniformly doped white basic zinc carbonate precipitate is obtained; (3) after the above precipitate is washed and separated Drying, the obtained powder is sintered under the mixture of hydrogen and argon, sintering temperature 400 ° C -700 ° C, time 30 minutes -60 minutes, after sintering, the final doped gallium, doped aluminum, doped gallium and aluminum Zinc oxide powder.

In some embodiments, in the zinc oxide powder of the doping element, the doping ratio of the element is about 0.1 to 20 weight percent (wt%) of the total weight of the zinc and the doping element.

According to the embodiment of the present disclosure, the infrared absorbing powder can be uniformly dispersed in the material of the acrylic fiber or the cellulose fiber to form a composite material, or the powder can be uniformly dispersed in a solution of the acrylic fiber or the cellulose fiber to form a composite material. The dispersion is then spun and the dispersion is formed into a yarn having an infrared absorbing function.

Since the acrylic fiber has a carbon-nitrogen bond (C≡N) functional group, this The functional group contributes to the improvement of the conductivity of the infrared absorbing powder dispersed in the fiber and the ability of the acrylic fiber and its yarn to absorb infrared rays.

In addition, since the cellulose fibers have a water content of about 10% by weight (wt%), the high water content contributes to the improvement of the conductivity of the infrared absorbing powder dispersed in the fibers and the absorption of the cellulose fibers and their yarns. The ability of infrared.

In the embodiment of the present disclosure, the infrared absorbing powder accounts for about 0.1 to 20% by weight (wt%) based on the total weight of the fibers and the infrared absorbing powder.

In some embodiments, a fiber having an infrared absorbing function may be formed by wet spinning, and the material may be polyacrylonitrile (PAN). First, the above-mentioned infrared absorbing powder is dispersed in a solvent to form a dispersion. For example, the solvent is dimethyl acetamid (DMAc). Further, the polyacrylonitrile is dissolved in the same solvent to form a solution, and then the powder dispersion is mixed with the polyacrylonitrile solution to form a spinning solution, or the infrared absorbing powder can be directly dispersed in a solution of polyacrylonitrile, for example, A DMAc solution of polyacrylonitrile to form a spinning solution. Then, the spinning solution is made into an acrylic fiber containing infrared absorbing powder by a wet spinning process through a step of immersion coagulating, stretching, drying, and cutting.

In some embodiments, fibers having an infrared absorbing function may be formed by wet spinning, and the material may be regenerated cellulose. Purifying and sulfonating from a pulp containing more than 96% of α cellulose and preparing a sodium sulfonate alkali mucilage, first dispersing the above-mentioned infrared absorbing powder in a solvent to form a dispersion, the solvent is, for example, an aqueous NaOH solution, and the sulfonate is additionally Sodium cellulose alkali mucus mixed with powder dispersion to form recycled fiber Weaving the mucus, or directly dispersing the infrared absorbing powder in the sodium sulfonate alkali mucilage, using a solvent such as aqueous NaOH to form a regenerated cellulose spinning mucilage. Then, the regenerated cellulose spinning mucilage is conveyed to a spinning machine, and then distributed to a metering pump of each spinning position, and extruded from a spinning nozzle made of platinum to the spinning bath. The mucus leaves the spinning nozzle and then coagulates with the coagulating liquid in the spinning bath. At the spinning speed of 300~800m/min, it also accepts the extension, so that the regenerated cellulose molecules can be aligned and stressed. Crystallization, and fiber properties, the tow is taken up into a cake, and then de-acidified, desulfurized, de-alkali, washed, dehydrated, oiled, dried, regained, etc. The fiber is twisted or twisted to complete the fiber production.

In some embodiments of the present disclosure, in order to avoid causing a large decrease in fiber physical properties, the particle size of the above-mentioned infrared absorbing powder is selected to be less than 800 nm, and examples in which the fiber is formed by wet spinning may be used. The powder having a large diameter, the particle size of the infrared absorbing powder is mostly less than 2,000 nm.

In some embodiments, a spinning dope containing an acrylic fiber material or a spinning dope of a rayon fiber material may be used to spin-process a yarn having an infrared absorbing function. In some embodiments, acrylic fibers or rayon fibers containing infrared absorbing powder or a combination thereof may be blended with other fibers to form a blended yarn having an infrared absorbing function. In some embodiments, the yarn containing the infrared absorbing powder may be combined with other yarns to form a plied yarn having an infrared absorbing function.

In some embodiments, other fibers or other yarns are optional From polyethylene fiber, polypropylene fiber, polyamide fiber, polyester fiber, acrylic fiber, polyacrylate fiber, polyurethane fiber, cellulose fiber, cellulose acetate fiber, animal fiber (including 茧A group in which a plurality of fibers such as fibers, wool fibers, and hair fibers, and modified fibers of the fibers are randomly combined. The modified fiber of the above fiber may have other functions by kneading or polymerizing the additive or by a profiled section or hollow or other means, such as anti-ultraviolet, antibacterial, antistatic, cationic dyeable, high ammonia low temperature dyeable. , moisture wicking and warmth and other functions.

In some embodiments of the present disclosure, the above-mentioned yarn having an infrared absorbing function may be used alone to make a textile, and the above-mentioned yarn having an infrared absorbing function and other yarns may be used to make a textile, and these textiles have absorption due to absorption. The infrared function of the yarn, therefore, has the effect of keeping warm.

In some embodiments, the other yarns may be selected from the group consisting of polyethylene fibers, polypropylene fibers, polyamide fibers, polyester fibers, acrylic fibers, polyacrylate fibers, polyurethane fibers, cellulose fibers. A group in which a plurality of fibers such as cellulose acetate fibers, animal fibers (including rayon fibers, wool fibers, and hair fibers) and modified fibers of the fibers are randomly combined.

The following describes the production methods and characteristics of the yarns and textiles having the infrared absorbing function of the present disclosure, and compares them with the yarns and textiles of the comparative examples:

Example 1 - Acrylic Fiber Containing Aluminum-Doped Zinc Oxide Powder

Dispersing an aluminum-doped zinc oxide powder (a doping amount of aluminum of 1.2 wt% of the total weight of zinc and aluminum) in a solution of polyacrylonitrile in dimethylacetamide (DMAc), wherein polyacrylonitrile and The total weight of the aluminum-doped zinc oxide powder is based on the reference, and the amount of powder added is 0.8 wt%, the amount of DMAc used was 85 wt%. Made of 2.0d and 51mm acrylic fiber by spinning, and blended with nylon 6/嫘萦/wool to make acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) 2 /48s yarn, and finally made a 12-pin woven piece. The fabric of Example 1 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 44.3 ° C; the fabric of Example 1 was subjected to a near-infrared absorption test (wavelength range of 1,000 to 2,500 nm), and the average near-infrared absorption was measured. The rate is 50%.

Comparative Example 1 - Acrylic fiber without powder

Blend 2.0d and 51mm acrylic fibers with nylon 6/嫘萦/wool into 2/48s yarn of acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6), then make 12 The woven piece of the needle. The woven sheet of Comparative Example 1 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 42.0 ° C; the woven sheet of Comparative Example 1 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average was measured. The infrared absorption rate was 38%.

Example 2 - Tantalum fiber containing aluminum-doped zinc oxide powder

The aluminum-doped zinc oxide powder (the doping amount of aluminum is 1.2 wt% of the total weight of zinc and aluminum) is dispersed in the sodium sulfonate alkali alkali mucilage, wherein the aluminum-doped zinc oxide powder and the recycled fiber are used. The total weight of the element was based on the basis, and the amount of powder added was 0.8% by weight. The 1.2d and 38mm rayon fibers were made by spinning, and then blended with cotton fiber to make 嫘萦/cotton (60/40 by weight) 30s/l yarn. The final fabric weight was 200g/m. ² circular knitting machine knitted fabric. The circular knitting machine knitted fabric of Example 2 was subjected to a near-infrared illuminating temperature rise test, and the measured temperature was 44.4 ° C; the near-infrared absorption rate test was performed on the circular knitting machine knitted fabric of Example 2 (wavelength range was 1,000-2,500 nm). ), the average near-infrared absorption rate was measured to be 53%.

Comparative Example 2 - Non-powdered rayon fiber

The 1.2d and 38mm twisted cotton and cotton fiber were blended into a 30s/l yarn of 嫘萦/cotton (60/40 weight ratio), and then made into a circular knitting machine with a cloth weight of 200g/m ² . . The circular knitting machine knitted fabric of Comparative Example 2 was subjected to a near-infrared illuminating temperature rise test, and the measured temperature was 42.5 ° C; the near-infrared absorption rate test was performed on the circular knitting machine knitted fabric of Comparative Example 2 (wavelength range was 1,000-2,500 nm). ), the average near-infrared absorption rate was measured to be 40%.

Example 3 - Acrylic Fiber Containing Aluminum-Doped Zinc Oxide Powder

The difference between Example 3 and Example 1 is that the aluminum-doped zinc oxide powder has a doping amount of aluminum of 5.0% by weight based on the total weight of zinc and aluminum. Made of 2.0d and 51mm acrylic fiber by spinning, and blended with nylon 6/嫘萦/wool to make acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) 2 /48s yarn, and finally made a 12-pin woven piece. The woven sheet of Example 3 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 48.0 ° C; the woven sheet of Example 3 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average was measured. The infrared absorption rate was 63%.

Example 4 - Tantalum fiber containing aluminum-doped zinc oxide powder

The difference between Example 4 and Example 2 is that the aluminum-doped zinc oxide powder has a doping amount of aluminum of 5.0 wt% of the total weight of zinc and aluminum, and is a regenerated cellulose and an aluminum-doped zinc oxide powder. The total weight was based on the basis, and the amount of powder added was 6.0 wt%. The 1.2d and 38mm rayon fibers were made by spinning, and then blended with cotton fiber to make 嫘萦/cotton (weight ratio 60/40) 30s/l yarn, and finally made into cloth weight 200g/m ² Circular knitting machine for knitting. The circular knitting machine knitted fabric of Example 4 was subjected to a near-infrared illuminating temperature rise test, and the measured temperature was 49.8 ° C; the near-infrared absorption rate test (wavelength range of 1,000-2,500 nm) was carried out on the knitted fabric of the circular knitting machine of Example 4. The average near-infrared absorption rate was measured to be 69%.

Example 5 - Acrylic fiber containing aluminum-doped zinc oxide powder

The difference between Example 5 and Example 1 is that the aluminum-doped zinc oxide powder has a doping amount of aluminum of 10.0% by weight based on the total weight of zinc and aluminum. Made of 2.0d and 51mm acrylic fiber by spinning, and blended with nylon 6/嫘萦/wool to make acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) 2 /48s yarn, and finally made a 12-pin woven piece. The woven sheet of Example 5 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 49.0 ° C; the woven sheet of Example 5 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average was measured. The infrared absorption rate is 65%.

Example 6 - Acrylic fiber containing gallium-doped zinc oxide powder

The difference between Example 6 and Example 1 is that the gallium-doped zinc oxide powder is used, the doping amount of gallium is 2.2 wt% of the total weight of zinc and gallium, and the acrylic fiber and the gallium-doped zinc oxide powder are used. The total weight was based on the basis, and the powder addition amount was 0.2% by weight. Made of 2.0d and 51mm acrylic fiber by spinning, and blended with nylon 6/嫘萦/wool to make acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) 2 /48s yarn, and finally made a 12-pin woven piece. The woven sheet of Example 6 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 44.5 ° C; the woven sheet of Example 6 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average was measured. The infrared absorption rate was 52%.

Example 7 - Acrylic fiber containing gallium-doped zinc oxide powder

The difference between Example 7 and Example 6 is that the gallium-doped zinc oxide powder has a gallium doping amount of 5.0 wt% of the total weight of zinc and gallium, and is made of acrylic fiber and doped gallium. The total weight of the zinc oxide powder was based on the basis, and the powder addition amount was 5.0% by weight. Made of 2.0d and 51mm acrylic fiber by spinning, and blended with nylon 6/嫘萦/wool to make acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) 2 /48s yarn, and finally made a 12-pin woven piece. The woven sheet of Example 7 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 55 ° C; the woven sheet of Example 7 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average was measured. The infrared absorption rate was 93%.

Example 8 - Acrylic fiber containing gallium-doped zinc oxide powder

The difference between Example 8 and Example 6 is that the gallium-doped zinc oxide powder has a gallium doping amount of 10.0% by weight of the total weight of zinc and gallium, and a total of acrylic and gallium-doped zinc oxide powder. Based on the weight, the powder was added in an amount of 0.5% by weight. Made of 2.0d and 51mm acrylic fiber by spinning, and blended with nylon 6/嫘萦/wool to make acrylic/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) 2 /48s yarn, and finally made a 12-pin woven piece. The woven sheet of Example 8 was subjected to a near-infrared illuminating temperature rise test, and the temperature was measured to be 51 ° C; the woven sheet of Example 8 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average was measured. The infrared absorption rate was 81%.

Example 9 - Tantalum fiber containing gallium-doped zinc oxide powder

The difference between Example 9 and Example 2 is that the gallium-doped zinc oxide powder has a gallium doping amount of 2.2 wt% of the total weight of zinc and gallium, and is a regenerated cellulose and a gallium-doped zinc oxide powder. The total weight was based on the basis, and the powder addition amount was 0.2% by weight. The 1.2d and 38mm rayon fibers were made by spinning, and then blended with cotton fiber to make 嫘萦/cotton (weight ratio 60/40) 30s/l yarn, and finally made into cloth weight 200g/m ² Circular knitting machine for knitting. The circular knitting machine knitted fabric of Example 9 was subjected to a near-infrared illuminating temperature rise test, and the measured temperature was 44.7 ° C; the near-infrared absorption rate test was performed on the circular knitting machine knitted fabric of Example 9 (wavelength range was 1,000-2,500 nm). ), the average near-infrared absorption rate was measured to be 55%.

Example 10 - Tantalum fiber containing gallium-doped zinc oxide powder

The difference between Example 10 and Example 9 is that the gallium-doped zinc oxide powder has a gallium doping amount of 5.0 wt% of the total weight of zinc and gallium, and is a regenerated cellulose and a gallium-doped zinc oxide powder. The total weight was based on the basis, and the powder addition amount was 5.0% by weight. The 1.2d and 38mm rayon fibers were made by spinning, and then blended with cotton fiber to make 嫘萦/cotton (weight ratio 60/40) 30s/l yarn, and finally made into cloth weight 200g/m ² Circular knitting machine for knitting. The circular knitting machine knitted fabric of Example 10 was subjected to a near-infrared illuminating temperature rise test, and the measured temperature was 56.0 ° C; the near-infrared absorption rate test was performed on the circular knitting machine knitted fabric of Example 10 (wavelength range was 1,000-2,500 nm). ), the average near-infrared absorption rate was measured to be 93%.

Comparative Example 3 - Polyester fiber containing aluminum-doped zinc oxide powder

Comparative Example 3 was dispersed and dispersed in a polyester fiber using an aluminum-doped zinc oxide powder in which the doping amount of aluminum was 5.0 wt% of the total weight of zinc and aluminum, and the polypropylene and the aluminum-doped zinc oxide powder were used. The total weight was based on the basis, and the amount of powder added was 6.0 wt%. Made of 2.0d and 51mm polyester fiber by spinning, and blended with nylon 6/嫘萦/wool to make polyester/nylon 6/嫘萦/wool (weight ratio 61/18/15/6) The 2/48s yarn is finally made into a 12-needle woven piece. The fabric of Comparative Example 3 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average near-infrared absorption rate was measured to be 60%.

Comparative Example 4 - Nylon 6 fiber containing gallium-doped zinc oxide powder

Comparative Example 4 was added to the nylon 6 fiber by using a gallium-doped zinc oxide powder. The doping amount of gallium is 5.0 wt% of the total weight of zinc and gallium, and the powder is added in an amount of 5.0 wt% based on the total weight of the nylon 6 and the gallium-doped zinc oxide powder. Made of 2.0d and 51mm nylon 6 warm fiber by spinning, and blended with nylon 6/嫘萦/wool to make nylon 6 (warm)/nylon 6/嫘萦/wool (weight ratio 61/18/ 15/6) 2/48s yarn, and finally made 12-pin woven. The knitted fabric of Comparative Example 4 was subjected to a near-infrared absorption rate test (wavelength range of 1,000 to 2,500 nm), and the average near-infrared absorption rate was measured to be 87%.

The composition and characteristics of the fabrics of the respective examples using the aluminum-doped zinc oxide powder and the comparative examples described above were compared as listed in Table 1.

It can be seen from Table 1 that the aluminum-doped zinc oxide powder is dispersed and dispersed in the acrylic fiber or the rayon fiber, and the woven fabric has a higher average near-infrared absorbing rate than the woven fabric without the powder. And the illumination temperature rise test temperature, indicating that the fabric of the embodiment of the present disclosure can achieve a better warmth effect.

In addition, zinc oxide powder and/or powder with a high amount of aluminum doping is used. The powder with higher body addition is dispersed and dispersed in the fiber, and the fabric made thereof has a high average near-infrared absorption rate and a temperature rise test temperature, indicating that the doping amount of the aluminum element is higher and the powder addition amount is higher. High helps to achieve better warmth.

In addition, the fabric made of the ray fiber of Example 4 of the present disclosure has a higher fabric than that of the polyester fiber of Comparative Example 3, based on the same aluminum doping amount and powder addition amount. The average near-infrared absorption rate indicates that the ruthenium fiber of the embodiment of the present disclosure can achieve a better warming effect than the polyester fiber.

The composition and characteristics of the fabrics of the respective examples of the use of the gallium-doped zinc oxide powder and the comparative examples are as shown in Table 2.

It can be seen from Table 2 that the zinc-doped zinc oxide powder is dispersed and dispersed in the acrylic fiber or the yttrium fiber, and the woven fabric has a higher average near-infrared absorbing rate than the woven fabric without the powder. And the illumination temperature rise test temperature, indicating that the fabric of the embodiment of the present disclosure can achieve a better warmth effect.

In addition, a zinc oxide powder having a higher amount of gallium doping and/or a powder having a higher amount of powder added are dispersed and dispersed in the fiber, and the resulting fabric has a high average near-infrared absorption rate and an illumination temperature rise. The test temperature indicates that the doping amount of the gallium element is high and the powder addition amount is high to help achieve a better warming effect.

Further, the acryl fiber of the embossing Example 7 and the woven fiber of Example 10 were compared with the nylon 6 fiber of Comparative Example 4, based on the same amount of gallium doping and the amount of powder added. The resulting fabric has a high average near-infrared absorption rate and an illumination temperature rise test temperature, indicating that the acrylic fibers and the ray fibers of the disclosed embodiments can achieve a better warming effect than the nylon 6 fibers.

In summary, the embodiments of the present disclosure use aluminum-doped or gallium-doped zinc oxide powder to be dispersed in acrylic fibers or ruthenium fibers to form yarns and fabrics having infrared absorbing functions, compared to un-added powder. The fabric of the body, and the fabric made of the yarn of the present disclosure have a higher average near-infrared absorption rate and an illumination temperature rise test temperature than the fabric added with the same powder, which confirms the use of the present disclosure. The zinc oxide powder doped with aluminum and/or gallium is added and dispersed in the acrylic fiber or the ytterbium fiber, and the yarn and the textile made by the yarn can achieve better warming effect.

While the present invention has been described in its preferred embodiments, it is not intended to limit the invention, and it is understood by those of ordinary skill in the art that Retouching. Accordingly, the scope of the invention is defined by the scope of the appended claims.

Claims (10)

The invention relates to a yarn having an infrared absorbing function, comprising: a fiber constituting a yarn, the fiber material comprises acrylic fiber; and an infrared absorbing powder is added and dispersed in the fiber, and the material for absorbing the infrared powder comprises doping. Gallium zinc oxide, aluminum-doped zinc oxide, gallium-doped and aluminum-doped zinc oxide, or a combination thereof. The yarn having an infrared absorbing function according to claim 1, wherein in the infrared absorbing powder, the doping amount of the doping element gallium, aluminum, or gallium and aluminum is zinc and The total weight of the doping element is 0.1 to 20 weight percent. The yarn having an infrared absorbing function as described in claim 1, wherein the infrared absorbing powder has a weight of 0.1 to 20% by weight based on the total weight of the fiber constituting the yarn and the infrared absorbing powder. The yarn having the infrared absorbing function as described in claim 1 further comprises a further fiber blended with the fiber containing the infrared absorbing powder to form a blended yarn. The yarn having an infrared absorbing function as described in claim 4, wherein the material of the other fiber is selected from the group consisting of polyethylene fiber, polypropylene fiber, polyamide fiber, polyester fiber, acrylic fiber, a combination of polyacrylate fibers, polyurethane fibers, cellulose fibers, cellulose acetate fibers, animal fibers, and modified fibers of the foregoing fibers, wherein the animal fibers comprise rayon fibers, wool fibers, hair fibers Or a combination of the foregoing. A yarn having an infrared absorbing function as described in claim 1 further comprising a further yarn and the fiber containing the infrared absorbing powder. The resulting yarns are combined to form a plied yarn. The yarn having an infrared absorbing function according to claim 6, wherein the material of the other yarn is selected from the group consisting of polyethylene fiber, polypropylene fiber, polyamide fiber, polyester fiber, and acrylic fiber. a combination of a polyacrylate fiber, a polyurethane fiber, a cellulose fiber, a cellulose acetate fiber, an animal fiber, and a modified fiber of the foregoing fiber, wherein the animal fiber comprises rayon fiber, wool fiber, hair Fiber or a combination of the foregoing. A textile having an infrared absorbing function, comprising: a plurality of yarns made of a yarn having an infrared absorbing function as described in claim 1 of the patent application. The textile having the infrared absorbing function as described in claim 8 of the patent application, further comprising a plurality of other yarns and the yarn having the function of absorbing infrared rays. The textile having the function of absorbing infrared rays according to claim 9, wherein the material of the other yarn is selected from the group consisting of polyethylene fiber, polypropylene fiber, polyamide fiber, polyester fiber, acrylic fiber, a combination of polyacrylate fibers, polyurethane fibers, cellulose fibers, cellulose acetate fibers, animal fibers, and modified fibers of the foregoing fibers, wherein the animal fibers comprise rayon fibers, wool fibers, hair fibers Or a combination of the foregoing.