Sea-island type fiber for multi-functional fiber product having both UV-blocking and antibacterial / deodorizing properties, and manufacturing method thereof

Abstract

The present invention relates to a sea-island type fiber applied in the manufacture of a multi-functional fiber product, and a manufacturing method thereof and can provide a sea-island type fiber having not only antibacterial / deodorizing properties but also excellent UV-blocking properties, a manufacturing method thereof, and a multi-functional fiber product using same.

Description

A multifunctional fiber product that simultaneously satisfies UV protection, antibacterial, and deodorizing functions, and a method for manufacturing the same

[0001] The present invention relates to a sea-island fiber applicable to the manufacture of a multifunctional fiber product that simultaneously satisfies UV protection function and antibacterial and deodorizing function, having a whiteness of 90 or higher of the yarn itself, and a method for manufacturing the same.

[0002] With economic growth and improved consumer standards of living, demand for health care is increasing, leading to a growing demand for functional fiber materials for various indoor and outdoor exercise functions. However, consumers also demand materials that simultaneously block UV rays, which is considered an important element in functional materials, and control the growth of bacteria caused by sweat after exercise. Especially in the West, where skin problems caused by UV rays are prevalent, the demand for such combined functionality is continuously increasing. Synthetic fibers such as polyamide and polyolefin have continued to develop in the direction of providing unique functionality. These functional characteristics include the development of clothing materials with UV protection, absorbency, deodorization, moisture permeability, and antibacterial properties, as well as the development of industrial materials with high strength and antistatic properties.

[0003] In particular, existing antibacterial fibers applied to functional clothing, bedding, mask filters, air purifier filters, etc. are mainly fibers that have antibacterial particles such as copper (Cu) nanoparticles coated on the surface of the fiber or physically bonded to it. Even if they are mixed into the fiber, there are limitations in color expression, especially for use as functional clothing and fabrics, so they cannot be used universally. In particular, fiber materials that can simultaneously block UV rays in spring and fall, when there are many outdoor activities, can only be controlled by the thickness of the fabric, and there was no material that could simultaneously express the UV blocking and antibacterial functions inherent in the fiber itself. Functionalization through post-processing technologies such as coating has the problem of low color fastness after washing, which makes it difficult to maintain continuous antibacterial and UV blocking functions in fields that require frequent washing.

[0004] Accordingly, functional fibers have been developed that not only impart functionality such as antibacterial properties by introducing functional particles inside the fiber rather than on the fiber surface, but also improve the dyeability of the fiber while ensuring long-term functional stability even after washing. However, they are not meeting the recent trend of requiring multiple functionalities such as antibacterial properties and UV protection.

[0005] The present invention is an invention completed by finding that by introducing specific zinc oxide (ZnO) microparticles in different contents into the sea and island portions of a sea-type fiber, a multifunctional sea-type fiber can be manufactured in which the island portion has UV protection properties and the sea portion has antibacterial properties. When manufacturing synthetic fibers, various functions can be expressed by mixing various composite materials, but it is difficult to ensure consistency in functions due to uneven composition ratios depending on the process, and especially when used as clothing materials, whiteness can be said to be a very important factor in expressing aesthetics. That is, the present invention provides a sea-type fiber capable of expressing permanent UV protection and antibacterial functions by using zinc oxide (ZnO) that is harmless to the human body as a raw material, a method for manufacturing the same, and a textile product using the same.

[0006] The present invention provides a multifunctional sea-type fiber for achieving the above-described purpose, comprising: an island portion including first ZnO microparticles and a nylon resin; and a sea portion including second ZnO microparticles and a nylon resin; wherein the first ZnO microparticles have a relatively smaller specific surface area than the second ZnO microparticles.

[0007] In addition, the present invention relates to a method for manufacturing the multifunctional island-type fiber, comprising: a first step of manufacturing a first master batch chip and a second master batch, respectively; a second step of mixing the first master batch chip and a nylon resin and then melting them to manufacture an island portion forming resin, and a second step of mixing the second master batch chip and a nylon resin and then melting them to manufacture a sea portion forming resin, respectively; a third step of spinning the sea portion forming resin and the island portion forming resin through an island-type spinneret in a spinning pack; and a fourth step of performing a twisting process on the spun fiber, thereby manufacturing the multifunctional island-type fiber.

[0008] In addition, the present invention is a textile product using the multifunctional sea-type fiber described above, and can provide a product in which the multifunctional sea-type fiber is applied to the manufacture of composite functional clothing, shoe fabric, tent or bedding fabric, mask pack sheet, body care pack sheet, and nanofiber filter.

[0009] The multifunctional sea-island fiber of the present invention is a fiber having UV protection properties in the island portion and deodorizing and antibacterial properties in the sea portion, and the fiber has excellent deodorizing, antibacterial, and UV protection properties, and not only has excellent mechanical properties (abrasion resistance, tensile strength, elasticity, and resilience), but also has good wrinkle resistance, color development, and a soft touch. Using the fiber of the present invention, it can be applied to cosmetic fiber products such as mask pack sheets and body care pack sheets, medical bands, nanofiber filters for air purifiers, nano dust-proof nets, stockings, leggings, sportswear, shoes, tents, bedding, etc., and can produce various high-quality, high-functional fiber products.

[0010] Figure 1 is an SEM (scanning electron microscope) image showing the morphology of first ZnO and second ZnO microparticles, where A is an image of a spherical microparticle, B is an image of a rod-shaped microparticle, C is an image of a microflower-shaped microparticle, and D is an image of a mulberry-shaped microparticle.

[0011] Figures 2 and 3 are schematic diagrams of a manufacturing process for a first and second masterbatch containing ZnO microparticles and a process for spinning a sea-island type fiber by mixing the first and second masterbatch with the nylon resin.

[0012] Figure 4 is a schematic diagram of a process for combusting a multifunctional, sea-type fiber.

[0013] Figure 5 is an image of the first masterbatch and the second masterbatch containing ZnO microparticles.

[0014] Figure 6 is an SEM image of a cross-section of a multifunctional sea-island fiber manufactured in Example 1.

[0015] Figure 7 is an optical microscope image at 600x magnification of a multifunctional sea-island fiber manufactured in Example 1.

[0016] Figure 8 is an optical microscope and fluorescence microscope measurement image confirming the inhibition of biofilm formation of fibers manufactured in Example 1 and Comparative Example 1.

[0017] Figure 9 is an antibacterial test report of a multifunctional sea-type fiber manufactured in Example 1.

[0018] Figure 10 is a deodorizing performance test report of the multifunctional sea-type fiber manufactured in Example 1.

[0019] Figure 11 is a test report on the ultraviolet ray blocking rate of the multifunctional sea-type fiber manufactured in Example 1.

[0020] Figure 12 is a test report on the far-infrared emissivity measurement of the multifunctional sea-type fiber manufactured in Example 1.

[0021] The present invention is described in more detail below.

[0022] The multifunctional fiber of the present invention is a sea-island fiber, and by applying ZnO fine particles of different shapes and contents to the sea portion and the island portion, the island portion is provided with a UV blocking function, and the sea portion is provided with a deodorizing and antibacterial function.

[0023] The island portion of the fiber of the present invention comprises first ZnO fine particles and nylon resin.

[0024] The above first ZnO microparticles are microparticles having at least one shape selected from a sphere shape and a rod shape, and preferred examples of these shapes are as shown in A and B of Fig. 1.

[0025] And, the first ZnO fine particles have a specific surface area of ​​3 to 25 m 2 / g, preferably 3 to 20 m 2 / g, more preferably 5 to 15 m 2 / g is.

[0026] And, it is recommended to use the first ZnO fine particles having a particle size of 150 to 500 nm, preferably 150 to 300 nm, and more preferably 150 to 200 nm. If the particle size is less than 150 nm, an issue regarding the human safety of the material may arise, and if the particle size exceeds 500 nm, a re-agglomeration phenomenon of the particles may occur after dispersion, which may block the spinneret and increase the pack pressure, which may cause a problem of making working conditions difficult.

[0027] And, the content of the first ZnO fine particles in the island portion is 500 to 2,000 ppm, preferably 500 to 700 ppm. If the content of the first ZnO fine particles in the island portion is less than 500 ppm, the content may be too low and the UV blocking effect may be insufficient, and if it exceeds 2,000 ppm, it may be difficult to manufacture a fiber with a low denier, resulting in poor fiber flexibility and insufficient fiber softness. Therefore, it is preferable to contain it within the above range.

[0028] And, the nylon resin of the island may include at least one selected from nylon 6 resin, nylon 6,6 resin, nylon 6,10 resin and nylon 6,12 resin, and preferably may include at least one selected from nylon 6 resin and nylon 6,6 resin.

[0029] Next, the sea of ​​the fiber of the present invention includes second ZnO microparticles and a nylon resin. The second ZnO microparticles have lower antibacterial activity against gram-negative bacteria than against gram-positive bacteria. Therefore, by applying them at a high concentration in the sea, the antibacterial activity against gram-negative bacteria is increased, and further, the antibacterial activity can be further improved by inhibiting the formation of a biofilm of bacteria on the surface of the fiber.

[0030] The above second ZnO microparticles are microparticles having at least one shape selected from a microflower shape and a mulberry shape, and preferred examples of these shapes are as shown in C and D of Fig. 1.

[0031] And, the second ZnO microparticles are ZnO microparticles having a relatively higher specific surface area than the first ZnO microparticles of the island, and the second ZnO microparticles have a specific surface area of ​​50 to 150 m 2 / g, preferably 80 to 150 m 2 / g, more preferably 80 to 130 m 2 / g is.

[0032] And, it is recommended to use the second ZnO fine particles having a particle size of 50 to 500 nm, preferably 50 to 300 nm, and more preferably 100 to 200 nm. If the particle size is less than 50 nm, it may be difficult to manage and have poor dispersibility, which may cause problems in not being evenly dispersed and positioned in the sea. If the particle size exceeds 500 nm, the re-agglomeration of particles may occur after dispersion, which may block the spinneret, increase the pack pressure, and make working conditions difficult.

[0033] And, the content of the second ZnO fine particles in the sea is 500 to 5,000 ppm, preferably 500 to 2,000 ppm, preferably 700 to 1,500 ppm. If the content of the second ZnO fine particles in the sea is less than 500 ppm, the content may be too low and the antibacterial effect against gram-negative bacteria may be insufficient. Even if it exceeds 5,000 ppm, not only will there be no further antibacterial enhancement effect, but the fiber flexibility may decrease and the softness of the fiber may be insufficient. In addition, there may be a problem that the color is difficult to express when dyeing for use in clothing products, etc., so it is recommended to contain it within the above range.

[0034] And, the nylon resin of the island may use the same or different resin as the nylon resin of the sea, and the nylon resin may include at least one selected from among nylon 6 resin, nylon 6,6 resin, nylon 6,10 resin, and nylon 6,12 resin, and preferably may include at least one selected from among nylon 6 resin and nylon 6,6 resin.

[0035] The cross-sectional area ratio of the Sea and the Island of the sea-type fiber of the present invention is 60:40 to 80:20, and preferably 65:35 to 75:25. At this time, if the cross-sectional area ratio of the Sea is less than 60, there may be a problem in that the antibacterial effect of the fiber is insufficient or the deodorizing performance is insufficient, and if the cross-sectional area ratio of the Sea exceeds 80, there may be a problem in that the ultraviolet ray blocking performance is reduced. Therefore, it is preferable that the Sea and the Island are configured within the cross-sectional area ratio range.

[0036] The multifunctional sea-island fiber of the present invention can be manufactured by adjusting the fiber fineness and filament count according to the type of textile product to be manufactured using the same. For example, when manufacturing stockings, the fiber can be applied with a fineness of 20 to 22 de (denier) and a filament count of 15 to 30, and for inner wear and S / S (spring / summer) leggings, the fiber can be applied with a fineness of 30 to 50 de and a filament count of 30 to 40, and for F / W (fall / winter) leggings, the fiber can be applied with a 65 to 72 de and a filament count of 34 to 68.

[0037] The multifunctional island-type fiber of the present invention described above can be manufactured by the following steps: 1) manufacturing a first master batch chip and a second master batch, respectively; 2) mixing the first master batch chip and a nylon resin, and then melting them to manufacture an island-forming resin; 3) mixing the second master batch and a nylon resin, and then melting them to manufacture a sea-forming resin; 4) spinning the sea-forming resin and the island-forming resin through an island-type spinneret in a spinning pack; and 5) twisting the spun fiber. Schematic diagrams of the manufacturing process are shown in FIGS. 2 and 3.

[0038] In addition, the nylon resin may include at least one selected from among nylon 6 resin, nylon 6,6 resin, nylon 6,10 resin, and nylon 6,12 resin as described above, and preferably may include at least one selected from among nylon 6 resin and nylon 6,6 resin.

[0039] The first master batch chip and the second master batch chip can each be independently manufactured by mixing and chipping a liquid dispersion containing ZnO fine powder, a solvent, and an additive; and a nylon resin. Preferably, the liquid dispersion and the nylon resin can be manufactured by mixing and chipping them in a weight ratio of 1:0.9 to 1.2. When manufacturing the chip, the nylon resin can be the same as the nylon resin used in the second step.

[0040] And, the liquid dispersion is prepared by mixing and dispersing in a liquid state 5 to 42 wt% of the first ZnO fine powder or the second ZnO fine powder, 0.5 to 5.0 wt% of the additive, and the remaining balance of 100 wt% of the solvent, and preferably, it is prepared by mixing and dispersing in a liquid state 20 to 40 wt% of the first ZnO fine powder or the second ZnO fine powder, 0.5 to 3.0 wt% of the additive, and the remaining balance of 100 wt% of the solvent. At this time, if the content of the first ZnO fine powder or the second ZnO fine powder exceeds the above range, re-agglomeration of the ZnO fine powder may occur in the step of manufacturing the master batch chip, which may cause a decrease in the strength of the island-like fiber, and fiber spinning may not be possible due to an increase in pack pressure in the spinning step.

[0041] In addition, the solvent used in the manufacture of the first master batch chip and the second master batch may independently include at least one selected from isopropyl alcohol (IPA) and water.

[0042] Additionally, the additive may include a dispersant, a heat stabilizer, a plasticizer, etc.

[0043]

[0044] Next, the second step is a process for manufacturing a resin for forming a sea and a resin for forming an island. The island-forming resin is manufactured by mixing the first master batch chip manufactured in the first step and a nylon resin, and then melting them. At this time, 1.25 to 10 wt% of the first master batch chip and the remaining amount of nylon resin are mixed, and by using the first master batch chip in the above content range, the content of ZnO fine particles in the island can be controlled to 500 to 2,000 ppm. In addition, the nylon resin is the same resin as the nylon resin used in manufacturing the first master batch chip.

[0045] In addition, the resin for forming the sea is manufactured by mixing the second master batch and nylon resin manufactured in step 1 and then melting them. At this time, 1.25 to 20 wt% of the second master batch and the remaining amount of nylon resin are mixed, and by using the second master batch in the above content range, the content of ZnO fine particles in the sea can be controlled to 500 to 5,000 ppm. In addition, the nylon resin is the same resin as the nylon resin used in manufacturing the second master batch.

[0046] Next, the third step is a process of spinning the sea-forming resin and the island-forming resin through a sea-type spinneret in a spinneret pack. A general spinneret used in the art can be used, and a spinneret capable of forming a sea and an island at a cross-sectional area ratio of 60:40 to 80:20 can be used.

[0047] And, although the radiation conditions are not particularly limited, for example, a desirable implementation can be performed under the conditions of an initial pressure of the radiation pack of 110 to 180 kg / cm2, a temperature of 250 to 280°C, and a winding speed of 3,500 to 4,500 m / min.

[0048] And, the fourth step is to perform a sintering process (=combustion) to stabilize the properties, which can be performed by using a belt-type combustor to perform a process including combusting at a temperature of D / R (Drow Ratio) 1.30 to 1.40 and a combustible temperature of 150 to 170℃, and preferably, using a belt-type combustor, it can be performed at a temperature of D / R 1.32 to 1.38 and a combustible temperature of 155 to 165℃.

[0049] The multifunctional sea-type fiber of the present invention can be used to manufacture various functional fiber products requiring deodorizing, antibacterial, and UV-blocking properties, and for example, can be applied to products used in the manufacture of composite functional clothing, shoe fabric, tent or bedding fabric, mask pack sheets, body care pack sheets, and nanofiber filters.

[0050]

[0051] Hereinafter, the present invention will be described in more detail through examples, but the following examples do not limit the scope of the present invention, and should be interpreted as helping to understand the present invention.

[0052] [Example]

[0053] Example 1: Preparation of sea-type fibers

[0054] (1) Manufacturing of the first master batch chip

[0055] Spherical shape, average particle diameter 104 nm and average specific surface area 13 m 2 / g ZnO fine powder (first ZnO fine powder) was prepared.

[0056] 40 wt% of the above ZnO fine powder, 59 wt% of isopropyl alcohol (IPA) as a solvent, and 1 wt% of a dispersant were introduced into a high-pressure disperser, and then mixed and dispersed in a liquid state to prepare a liquid dispersion.

[0057] Then, 50 wt% of the above liquid dispersion and 50 wt% of nylon 6 resin were mixed and chipped to manufacture a first master batch chip (Fig. 5A).

[0058] (2) Manufacturing of the second master batch chip

[0059] Microflower shape, average particle diameter 110 nm and average specific surface area 121 m 2 / g ZnO fine powder (second ZnO fine powder) 40 wt%, isopropyl alcohol (IPA) as a solvent 59 wt%, and dispersant 1 wt% were introduced into a high-pressure disperser, and then mixed and dispersed in a liquid state to prepare a liquid dispersion.

[0060] Then, 50 wt% of the above liquid dispersion and 50 wt% of nylon 6 resin were mixed and chipped to manufacture a second master batch chip (B in Fig. 5).

[0061] (3) Manufacturing of sea-type fibers

[0062] The remaining 99.65 wt% of nylon 6 resin among the first master batch 0.35 wt% and 100 wt% was introduced into a melt extruder and mixed, and then melted at 280°C to prepare a resin for forming an island.

[0063] The remaining 99.25 wt% of nylon 6 resin among the 0.75 wt% and 100 wt% of the second master batch was introduced into a melt extruder and mixed, and then melted at 280°C to prepare a resin for forming a sea.

[0064] The above island-forming resin and sea-forming resin were each spun through a sea-type spinneret in a spinneret pack. At this time, the spinning was performed under the conditions of an initial pressure of 110 kg / cm2, a temperature of 255°C, and a winding speed of 4,100 m / min in the spinneret pack.

[0065] And, to stabilize the properties of the radiated fibers, a process including burning at a temperature of 160℃ with a D / R (Drow Ratio) of 1.35 was performed using a belt-type burner (see Fig. 4) to manufacture a sea-island type fiber.

[0066] The manufactured fiber had a cross-sectional ratio of sea and island of 70:30, a fineness of 40 de, and a filament count of 36.

[0067] And, the ZnO content in the island was 700 ppm, and the ZnO content in the sea was about 1,500 ppm.

[0068] The SEM measurement image of the cross-section of the manufactured sea-island type fiber is shown in Fig. 6, and the optical microscope measurement image is shown in Fig. 7.

[0069]

[0070] Comparative Examples 1 to 3

[0071] In the same manner as in Example 1, island-type fibers having the same fineness and number of filaments were manufactured, but island-type fibers having different contents of first ZnO microparticles and second ZnO microparticles in the island and sea were manufactured as shown in Table 1 below, and Comparative Examples 1 to 3 were performed, respectively.

[0072] ZnO content (ppm) in Island section ZnO content (ppm) in Sea section Example 1700 1,500 Comparative example 1300 300 Comparative example 2300 1,500 Comparative example 3700 300

[0073] Experimental Example 1: Measurement of antibacterial activity and UV blocking rate

[0074] The antibacterial activity and ultraviolet ray blocking rate of each of the sea-island fibers manufactured in the above examples and comparative examples were measured, and the results are shown in Table 2 below. At this time, the ultraviolet ray blocking rate was measured according to KS K 0850, and the antibacterial activity was measured according to KS K 0693.

[0075] And, the optical microscope and fluorescence microscope measurement images confirming the biofilm formation inhibition effect on pneumococci of Example 1 and Comparative Example 1 are shown in Figure 8.

[0076] UV blocking rate by category Antibacterial (bacterial reduction rate) UVA blocking rate (%) UVB blocking rate (%) Staphylococcus aureus (%) Streptococcus pneumoniae (%) Example 199.999.999.999.9 Comparative example 173.680.485.458.6 Comparative example 291.296.399.999.9 Comparative example 386.589.186.060.2

[0077] Experimental Example 2

[0078] The antibacterial activity, deodorizing activity, ultraviolet ray blocking rate, and far-infrared ray emissivity of the multifunctional sea-island fiber manufactured in Example 1 were measured by the FITI Testing and Research Institute, and the test results are shown in Figures 9 to 12.

[0079] The specimen used in the above test was a knitted fabric woven using the multifunctional sea-type fiber of Example 1.

[0080] As a result of the measurement, it was confirmed that it had a high antibacterial property of 99.9% (see Fig. 9) and a high deodorizing property of 87.8% for ammonia deodorization and 86.4% for acetic acid deodorization (see Fig. 10).

[0081] In addition, it was confirmed that the textile product manufactured using the sea-type fiber of the present invention has an excellent ultraviolet ray blocking effect of 99.9% or more for all of UV-R, UV-A, and UV-B (see Fig. 11), and it was confirmed that it has a high far-infrared ray emissivity of 88.5% (see Fig. 12).

Claims

1. An island portion comprising first ZnO nanoparticles and nylon resin; and It consists of a sea part including second ZnO nanoparticles and nylon resin; A multifunctional sea-island fiber applicable to multifunctional fiber products that simultaneously satisfy UV blocking, antibacterial, and deodorizing functions, characterized in that the first ZnO nanoparticle has a smaller specific surface area than the second ZnO nanoparticle.

2. In the first paragraph, the first ZnO nanoparticle has a specific surface area of ​​3 to 25 m 2 / g and, The above second ZnO nanoparticles have a specific surface area of ​​50 to 150 m 2 A multifunctional sea-type fiber that satisfies both UV protection and antibacterial and deodorizing functions, characterized by / g.

3. In the first paragraph, the first ZnO nanoparticle has at least one shape selected from a sphere shape and a rod shape, and has a particle diameter of 150 to 500 nm. A multifunctional sea-island fiber applicable to a multifunctional fiber product that satisfies both UV blocking and antibacterial and deodorizing functions, characterized in that the second ZnO nanoparticles have at least one shape selected from a microflower shape and a mulberry shape and have a particle diameter of 50 to 500 nm.

4. In the first paragraph, the island portion contains 500 to 2,000 ppm of the first ZnO nanoparticles, A multifunctional sea-type fiber applied to a multifunctional fiber product that simultaneously satisfies UV blocking function and antibacterial and deodorizing function, characterized in that the above-mentioned sea part contains 500 to 5,000 ppm of second ZnO nanoparticles.

5. In the first paragraph, the nylon resin of the island portion and the sea portion independently includes at least one selected from nylon 6 resin, nylon 6,6 resin, nylon 6,10 resin, and nylon 6,12 resin. A multifunctional sea-type fiber applicable to a multifunctional fiber product that simultaneously satisfies UV protection function and antibacterial and deodorizing function.

6. A multifunctional sea-type fiber applicable to a multifunctional fiber product that satisfies both UV protection function and antibacterial and deodorizing function, characterized in that the cross-sectional area ratio of the sea portion and the island portion in the first paragraph is 60:40 to 80:

20.

7. A multifunctional sea-island fiber applicable to a multifunctional fiber product that satisfies both UV protection and antibacterial and deodorizing functions, characterized in that the sea-island fiber has a fineness of 20 to 150 de and a filament count of 20 to 136 in any one of the first to sixth clauses.

8. Step 1: Manufacturing a first master batch chip forming the island portion and a second master batch forming the sea portion; Step 2: mixing the first master batch chip and nylon resin, melting them to manufacture a resin for forming an island portion, and mixing the second master batch and nylon resin, melting them to manufacture a resin for forming a sea portion; Step 3: performing radiation using a sea-type radiation pack and an island-type radiation mold, respectively, for forming the sea portion and the island portion; and A method for manufacturing a multifunctional sea-type fiber applicable to a multifunctional fiber product that simultaneously satisfies UV protection and antibacterial and deodorizing functions, characterized by performing a process including four steps of performing a four-step process on radiated fibers.

9. In paragraph 8, the private processing, A method for manufacturing a multifunctional sea-type fiber applicable to a multifunctional fiber product that simultaneously satisfies UV protection and antibacterial and deodorizing functions, characterized in that the process is performed under conditions of a D / R (Drow Ratio) of 1.30 to 1.40 and a combustion temperature of 150 to 170℃ using a belt-type combustor.

10. A textile product using a multifunctional sea-type fiber selected from any one of the items 1 to 6, The above textile product is characterized by being a mask pack sheet, a body care pack sheet, a nanofiber filter, an insole for clothing or shoes, a fabric for tents, or bedding.

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