KR102199366B1 - Manufacturing method of recyclable functional clothing - Google Patents

Abstract

The present invention relates to a method for manufacturing functional clothing for recycling, and more particularly, has excellent fastness to washing, friction, water, and sweat, and has a low dimensional change rate during washing, so that it can be freely used for various clothing, and is environmentally friendly and recyclable. It is possible to provide a method for manufacturing recyclable functional clothing.

Description

Manufacturing method of recycling functional clothing {MANUFACTURING METHOD OF RECYCLABLE FUNCTIONAL CLOTHING}

The present invention relates to a method for manufacturing functional clothing for recycling, and more particularly, has excellent fastness to washing, friction, water, and sweat, and has a low dimensional change rate during washing, so that it can be freely used for various clothing, and is environmentally friendly and recyclable. It is possible to provide a method for manufacturing recyclable functional clothing.

In general, clothing is a basic element in human life, and is manufactured in various designs using fabrics having various materials and colors.

The fabric is in the form of a fibrous fabric obtained by weaving yarn in a loom, and this fabric becomes a raw material for manufacturing various textile articles such as clothing and bedding.

However, since most of these fabrics are commercialized through a simple processing process and a process such as sewing, which is not functional, there is a problem in that favorable conditions for the growth of various harmful bacteria or fungi are created.

The odor generated by the propagation of such harmful bacteria and fungi may not only cause discomfort to the surrounding people, but also may cause diseases by proliferating bacteria or fungi on the skin.

In particular, in the case of conventional fabrics, synthetic resins are mixed with an organic solvent, etc., and in this case, there is a problem in that the previously used organic solvent remains on the fabric and may cause skin problems.

In addition, conventionally manufactured fabrics use a printing composition in which acrylic, solvent, and pigment are mixed to print various logos in the process of being formed into covers such as clothing, mats, and sofas. The solvent used in the above printing composition Is mainly used as an organic solvent such as dimethylformamide, toluene, methyl ethyl ketone, and ethyl acetate. These organic solvents not only emit environmental hormones, but also can cause skin troubles, and are released under high temperature conditions to adversely affect the human body.

In addition, in recent years, according to the development of clothing manufacturing technology, a variety of clothing has been manufactured, and as the fashion cycle of clothing becomes shorter, the replacement cycle of clothing is also accelerating.

Accordingly, since clothing is also treated as a single waste, there is a growing problem of treatment of worn-out clothing, and in particular, there is a need to develop a technology for recycling and reusing clothing.

In recent years, green growth with low carbon emissions is being greatly emphasized worldwide, and in response to this, recycled materials and environmentally friendly materials are widely used. In addition, in the future, there is an increasing demand for clothing products that are more environmentally friendly and recyclable than lightweight and high-end clothing, and exhibit various functionalities.

Korean Patent Publication No. 10-2141953

The present invention is intended to solve the above problems, has excellent fastness to washing, friction, water, and sweat, and has a low dimensional change rate during washing, so it can be freely used for various clothes, and it is eco-friendly because no harmful substances are detected. It is intended to provide a method of manufacturing functional clothing that can be recycled, which is recyclable and does not cause environmental problems.

The above and other objects and advantages of the present invention will become apparent from the following description of preferred embodiments.

The above object is to prepare a blended yarn by blending polyester fibers and polyurethane fibers; Dyeing the blended yarn by immersing it in a dyeing composition; Manufacturing a covering yarn by covering the dyed blended yarn on a synthetic fiber yarn; Manufacturing a fabric by including the covering yarn as weft and warp; And manufacturing functional clothing by dyeing and sewing the fabric. It may be achieved by a method for manufacturing functional clothing that can be recycled.

Specifically, the blended yarn may include polyester fibers and polyurethane fibers in a weight ratio of 50:50 to 95:5.

Specifically, the synthetic fiber yarn may be characterized in that it is a synthetic fiber yarn selected from the group consisting of nylon, polyester, polyethylene, polypropylene, polyurethane, polystyrene, polyvinyl alcohol, and combinations thereof.

According to the manufacturing method according to the present invention, it is eco-friendly because no harmful substances are detected, it does not cause skin irritation and has excellent antibacterial properties, so it does not cause skin diseases such as dermatitis and allergies, and has excellent fastness to washing, friction, water, and sweat. And, since it is recyclable, it is possible to manufacture recyclable functional clothing that does not cause environmental problems.

However, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a flow chart showing a method for manufacturing a recycling functional clothing according to an embodiment of the present invention.
Figure 2 (a) and (b) is a micrograph (a) after culturing a sample extracted from the control recycling functional clothing inoculated with Staphylococcus aureus for 18 hours, and the recycling functionality according to Example 1 of the present invention After inoculation of Staphylococcus aureus onto clothing, the sample was washed 3 times, and the extracted sample was incubated for 18 hours.
3(a) and (b) are micrographs (a) after culturing a sample extracted from the control recycled functional clothing inoculated with pneumonia for 18 hours, and the recycled functional clothing according to Example 1 of the present invention. After inoculating pneumococcus, washing three times, and culturing the extracted sample for 18 hours is shown in the micrograph (b).

Hereinafter, the present invention will be described in detail with reference to embodiments of the present invention and drawings. These examples are only illustratively presented to illustrate the present invention in more detail, and it will be apparent to those of ordinary skill in the art that the scope of the present invention is not limited by these examples. .

In addition, unless otherwise defined, all technical and scientific terms used in the present specification have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, and in case of conflict, the present specification including definitions The description of will take precedence.

In order to clearly describe the invention proposed in the drawings, parts not related to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification. And, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, "unit" described in the specification means one unit or block that performs a specific function.

In each step, the identification code (first, second, etc.) is used for convenience of description, and the identification code does not describe the order of each step, and each step does not clearly describe a specific sequence in the context. It may be implemented differently from the order specified above. That is, each of the steps may be performed in the same order as the specified order, may be performed substantially simultaneously, or may be performed in the reverse order.

Hereinafter, embodiments and examples of the present application will be described in detail with reference to the accompanying drawings. However, it may not be limited to these embodiments and examples and drawings of the present application.

One aspect of the present application, the step of producing a honseom yarn by honseom polyester fibers and polyurethane fibers; Dyeing the blended yarn by immersing it in a dyeing composition; Manufacturing a covering yarn by covering the dyed blended yarn on a synthetic fiber yarn; Manufacturing a fabric by including the covering yarn as weft and warp; And it provides a method for manufacturing functional clothing that can be recycled, comprising; and manufacturing functional clothing by dyeing and sewing the fabric.

Hereinafter, a method of manufacturing a recycled functional clothing according to an embodiment of the present application may be described through FIG. 1.

First, a polyester fiber and a polyurethane fiber are blended to prepare a blended yarn.

In an embodiment, the method for manufacturing the honed yarn may be a conventional method for manufacturing honed yarn.

In one embodiment, the polyester fiber and the polyurethane fiber may be included in a weight ratio of about 50: 50 to about 95: 5. If the polyester fiber and the polyurethane fiber are included in a weight ratio of less than about 50:50, the texture of the recycled functional clothing manufactured using the blended yarn becomes stiff, making it difficult to process into clothing, about 95: When included in excess of the weight ratio of 5, washing fastness and friction fastness of recycled functional clothing manufactured using the blended yarn may decrease.

In one embodiment, the polyester fiber may be a polyester filament yarn. The polyester filament yarn has a thin thickness and a strong strength, so that the durability of the manufactured recycled functional clothing can be improved. For example, the polyester filament yarn may be a polyester filament yarn having a fineness of about 80 to about 140 denier and a number of filaments of about 10 to about 60.

In one embodiment, the polyurethane fiber may be, for example, a polyurethane filament yarn, more preferably a polyurethane filament yarn having a fineness of about 20 to about 70 denier.

In addition, in an embodiment, after the blended yarn is manufactured, the blending power of the blended yarn is improved, and a twisting process may be additionally performed for ease of a weaving process. Preferably, the twisted yarn may be twisted with a twist number of about 200 to about 800 TPM, and the twisting direction may not be limited when twisting.

Next, the blended yarn is immersed in a dyeing composition to be dyed.

In one embodiment, the method of dyeing the blended yarn may use a conventionally known method without limitation, for example, acidic having a pH of about 6 or less in a temperature range of about 25°C to about 50°C. It may be immersed in the dyeing composition containing the dye for about 1 minute to about 60 minutes to perform a dyeing treatment.

Next, the synthetic fiber yarn is covered with the dyed blended yarn to prepare a covering yarn.

In one embodiment, the method of manufacturing the covering yarn may be manufactured by covering the blended yarn on the core yarn by using the synthetic fiber yarn as a core. For example, the covering may be performed through a single covering or a double covering process, and preferably, the covering yarn may be manufactured through a single covering process of about 50 to 800 twists per inch. If the number of twists per inch is less than about 50, the mechanical strength of the covering yarn to be manufactured may decrease, resulting in a decrease in washing and sweat fastness of the final recycled functional clothing.If the number of twists exceeds 800, the final recycled functional clothing manufactured Texture may become stiff.

In one embodiment, the synthetic fiber yarn may be characterized in that it is a synthetic fiber yarn selected from the group consisting of nylon, polyester, polyethylene, polypropylene, polyurethane, polystyrene, polyvinyl alcohol, and combinations thereof.

In one embodiment, the synthetic fiber yarn may preferably be a polyurethane yarn, and specifically, a polyurethane yarn having a fineness of about 10 to about 70 denier and elongated to about 200% to about 300%. I can. If the elongation of the polyurethane yarn is less than about 200%, the elasticity of the final recycled functional clothing manufactured using the polyurethane yarn may decrease, and when it exceeds about 300%, the elasticity of the final recycled functional clothing manufactured using the polyurethane yarn may decrease. The rate of change in washing dimensions and the washing fastness of the final recycled functional clothing may decrease.

Next, a fabric is prepared by including the covering yarn as warp and weft yarn.

In one embodiment, the method of manufacturing the fabric may use a conventionally known method without limitation, and may be manufactured by weaving or knitting using, for example, a loom or a knitting machine.

In one embodiment, the fabric of the fabric may be any one fabric selected from the group consisting of plain weave, twill weave, weave weave, double weave, pile weave, weave weave, crepe weave, and combinations thereof. Blended or colored yarns can be used to create patterns on fabrics.

For example, when the plain weave, twill weave, and satin weave are referred to as three-way fabrics, the specific weaving method of each of the three-way fabrics is based on a conventional three-way weaving method. It may be a fabric that changes by combining the structure, for example, as a change plain weave, there are duduk weave, basket weave, etc., as a change twill weave new twill weave, par twill weave, non-twill weave, mountain twill weave, etc. , Heavy-duty job, reinforced job, and hwagang job.

The double weave is a weaving method of a fabric in which either one of the warp or weft is doubled or both are doubled, and a specific method may be a conventional double weaving method.

In addition, the above-described various tissues or yarns of different colors may be used to implement a pattern on the fabric to be manufactured as a textile, for example, dobby textiles, jacquard textiles, and door textiles by mixing color yarns and tissues. Can be manufactured.

More specifically, the dobby fabric is suitable for producing a fabric having a relatively simple pattern, and can be used for expressing a very small pattern and a checkered pattern completed by about 20 to about 40 weft yarns, for example, There are a pique weave, a birds-eye weave, a waffle cloth weave, a huekaback weave, a crepe weave, etc., but are not limited thereto.

The jacquard fabric is a fabric capable of expressing a large pattern or curve unlike the dobby fabric, and may be, for example, a brocade, damask, or tapestry, but is not limited thereto. .

As for the door fabric by the combination of the color and the structure, a fabric having a small geometric pattern can be made by the combination of fabrics such as color yarn, plain weave, basket weave, and twill weave.For example, two contrasting colored yarns If all are allocated one by one and woven in plain weave, thin stripes in the warp direction or upward direction can be made.If two colors contrasting with the warp and weft are used and woven in a plain weave or basket structure, a crowfoot pattern is produced. Can be made. In addition, two color yarns that are contrasting with the warp yarn are arranged alternately by 4 yarns, and weaved in 2/2 twill to display a four-pointed star-shaped pattern that is not connected, and the thin stripes are alternately arranged in the warp direction and the upper direction. Placing it can also implement a checkered pattern.

In one embodiment, when the fabric is manufactured, the density of the warp and weft is not particularly limited, and for example, the basis weight of the woven fabric may be about 100 to 400 g/m2. If the basis weight of the fabric is less than about 100 g/㎡, there may be a problem that the mechanical strength of the manufactured functional clothing decreases, and when the basis weight exceeds about 400 g/㎡, the light weight of the manufactured functional clothing decreases. There is a problem that there may be a problem that the activity is inhibited when manufactured and worn as clothing.

In one embodiment, the fabric may be subjected to desizing, scouring, and bleaching processes performed before the dyeing process after conventional fabric manufacturing, and each of the processes is performed by a conventional desizing, scouring, and bleaching process. can do.

In one embodiment, before the step of washing and drying the fabric, it may further include a step of immersing the fabric in the coating composition and then drying. For example, by immersing the fabric in the coating composition for about 1 hour to about 12 hours and then drying it, it is possible to impart antibacterial properties and deodorant functionality to the fabric, and to provide an effect of preventing the fabric from being denatured by ultraviolet rays. I can. If the fabric is immersed in the coating composition for less than about 1 hour and then dried, the components included in the coating composition may not be sufficiently coated on the fabric, and if it exceeds about 12 hours, the fabric Injury, friction fastness and washing fastness may decrease.

In one embodiment, the coating composition may include an organic solvent, kaffir lime leaf extract, and alum.

In one embodiment, the organic solvent is included as a role for dissolving the constituents of the coating composition, and may include, for example, C1-C4 alcohol. Preferably, the organic solvent may include ethanol, and the ethanol may be included in an amount of about 10 to about 80 parts by weight based on 100 parts by weight of the coating composition. If the ethanol is less than about 10 parts by weight based on 100 parts by weight of the coating composition, the components of the coating composition may not be sufficiently dissolved and mixed, and if it exceeds about 80 parts by weight, antibacterial due to the coating composition , Deodorizing functionality, and ultraviolet denaturation inhibitory effects may not be sufficiently exhibited.

In one embodiment, the kaffir lime leaf extract may be included for an antimicrobial effect. The kaffir lime (kaffir lime) is a kind of lime, a plant of the genus Mandarin, and is distributed in southern China, Southeast Asia, South Asia, and the Pacific Ocean. The flavor of the leaves and peels of the kaffir lime is very strong, and in particular, the leaves of the kaffir lime are alkaloids, limonenes, and citronellol, which are basic organic compounds containing nitrogen. , Nerol, and other organic compounds are contained in a high concentration, so when used topically, it has an antibacterial action that prevents skin infections and bacteria, and has a refreshing scent, so it can have a nerve-soothing effect.

In one embodiment, the kaffir lime leaf extract may be included in an amount of about 1 to about 15 parts by weight based on 100 parts by weight of the coating composition. If the kaffir lime leaf extract is included in an amount of less than about 1 part by weight, the antibacterial effect may be insignificant, and when it is included in an amount exceeding about 15 parts by weight, mixing with other ingredients may be inhibited.

In one embodiment, the alum is a complex salt of aluminum sulfate and a monovalent metal sulfate, and may exert an antibacterial effect by destroying the cell wall of bacteria through dehydration.

In one embodiment, the size of the alum may be adjusted through a grinder, for example, it may mean that the alum is adjusted to a size ranging from about 1 to about 10 μm. The alum has a particle size in the range of about 1 to about 10 μm, so that it can be evenly coated on the surface of the fabric, and accordingly, bacteria in contact with the fabric may be killed by the antibacterial effect of the alum. .

In one embodiment, the alum may be included in an amount of about 0.1 to about 5 parts by weight based on 100 parts by weight of the total coating composition. If the alum is included in an amount of less than about 0.1 parts by weight relative to the total 100 parts by weight of the coating composition, the antibacterial effect may be reduced, and if it exceeds about 5 parts by weight, mixing with other ingredients may be inhibited.

In one embodiment, the coating composition may exhibit an antibacterial effect by additionally including zinc oxide powder. For example, the zinc oxide may have an effect of improving and treating skin problems caused by viruses and fungi by binding to bacterial cell membranes and membrane proteins to destroy structures and to lose activity.

In one embodiment, the zinc oxide powder may be evenly coated on the surface of the fabric by having a size in the range of about 1 to about 10 μm, so that bacteria in contact with the fabric are affected by the antibacterial effect of the alum. It may be killed by.

In one embodiment, the zinc oxide powder may be included in an amount of about 0.1 to about 5 parts by weight based on 100 parts by weight of the total coating composition. If the zinc oxide powder is included in an amount of less than about 0.1 parts by weight relative to the total 100 parts by weight of the coating composition, the antibacterial effect may be reduced, and if it exceeds about 5 parts by weight, mixing with other ingredients may be inhibited.

In one embodiment, the coating composition may further include coconut oil. The coconut oil is oil extracted from the dried flesh of coconut, and has a buttery texture at room temperature. Accordingly, by adding the coconut oil as a component of the coating composition, the UV protection of the fabric coated with the coating composition may be increased, thereby preventing the recyclable functional clothing from being denatured from UV.

In one embodiment, the coconut oil may be included in an amount of about 1 to about 5 parts by weight based on 100 parts by weight of the coating composition. For example, when the coconut oil is included in an amount of less than about 1 part by weight, the UV blocking effect may be insignificant, and when the coconut oil is included in an amount exceeding about 5 parts by weight, the drying speed may be slow.

In one embodiment, the step of drying after immersing the fabric in the coating composition may be performed through natural drying or hot air drying. For example, the hot air drying may be performed at about 60°C to about 150°C for 5 to 30 minutes using a hot air dryer, but is not limited thereto.

Finally, after immersion in the coating composition, the dried fabric is dyed and sewn to produce functional clothing. The fabric can be applied to both antibacterial, recyclable, and eco-friendly clothing products, for example, undergarments, socks, aprons, dishcloths, bed covers, sofa covers, scarves, eye masks, hair bands, and It can be applied to a garment product selected from the group consisting of combinations thereof.

Hereinafter, the configuration of the present invention and effects thereof will be described in more detail through specific examples and comparative examples. However, the present examples are for explaining the present invention more specifically, and the scope of the present invention is not limited to these examples.

[Example 1]

First, a polyester fiber (90 denier, 45 filament number polyester filament yarn) and a polyurethane fiber (45 denier polyurethane filament yarn) are included in a weight ratio of 95: 5 and mixed with a conventional method and twisted at 600 TPM. Honseom yarn was prepared by giving and twisting. The prepared blended yarns were each immersed in a dyeing composition containing an acidic dye (pH 4.5) of 45° C. for about 15 minutes to be dyed and dried.

Next, a covering yarn was prepared by covering the dyed blended yarn on a 95 denier polyurethane filament yarn stretched by 250% through a single covering process of 300 twists per inch.

By including the prepared covering yarn as warp and weft yarns, a fabric having a basis weight of about 250 g/m2 was prepared, and dyed and sewn to produce a recycled functional garment. The manufactured recycled functional clothing was named Example 1.

[Example 2 and Example 3]

Prepared in the same manner as in Example 1, but after fabrication using a covering yarn, it was immersed in a coating composition as shown in Table 1 for about 10 hours, and then dried for about 10 minutes at 120°C with a hot air dryer. Additional steps were included. The dried fabric was dyed and sewn to prepare a recycled functional garment, which was named Example 2 and Example 3, respectively.

Ingredients
(Based on 100 parts by weight of the coating composition) Example 2 Example 3 Organic solvent (ethanol) 83.50 75.00 Kaffir Lime Leaf Extract 12.00 12.00 Alum powder (particle size average: 7 μm) 4.50 4.50 Zinc oxide powder
(Average particle size: 5 μm) - 5.25 Coconut oil - 3.25

[Comparative Example]

Prepared in the same manner as in Example 1, but by covering a polyester filament yarn of 90 denier and 45 filament count through a single covering process of 300 twists per inch based on the 95 denier polyurethane filament yarn stretched by 250% as an examination. A covering yarn was prepared and included as warp and weft yarns to prepare a fabric having a basis weight of about 250 g/m2. The fabricated fabric was dyed and sewn to produce recycled functional clothing, and this was named as a comparative example.

[Experimental Example 1: Measurement of fiber mixing ratio]

For each of the recycled functional garments prepared in Examples 1 to 3 and Comparative Examples, the fiber mixing ratio was measured according to KS K 0210: 2018 of the Korea Apparel Testing Institute, and the results are shown in Table 2 below.

division Test result(%) Example 1 91.0% polyester, 9.0% polyurethane Example 2 89.4% polyester, 10.6% polyurethane Example 3 90.6% polyester, 9.4% polyurethane Comparative example 82.7% polyester, 17.3% polyurethane

[Experimental Example 2: Mass Measurement]

For each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples, the mass was measured according to KS K 0514: 2017 of the Korea Apparel Testing Institute, and the results are shown in Table 3 below.

division Test result (g/m ² ) Example 1 137.8 Example 2 136.7 Example 3 142.0 Comparative example 134.9

[Experimental Example 3: Peeling Measurement]

For each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples, the peeling after 14,400 times was measured by the peeling box method in accordance with KS K ISO 12945-1: 2014 of the Korea Apparel Testing and Research Institute, and the result It is shown in Table 4 below.

division Test result (grade) Example 1 4-5 Example 2 4-5 Example 3 5 Comparative example 3

As shown in Table 4, it was confirmed that the recyclable functional clothing of Examples 1 to 3 manufactured by the method according to the present invention showed more improved result values for the peeling measurement test compared to the recyclable functional clothing of the comparative example. .

[Experimental Example 4: Measurement of burst strength]

The bursting strength was measured for each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples. The measurement method was measured for a test area of 7.3 cm ² by a hydraulic method according to KS K ISO 13938-1: 1999 of the Korea Apparel Testing Institute, and the results are shown in Table 5 below.

division Test result (kPa) Example 1 741 Example 2 796 Example 3 862 Comparative example 598

As shown in Table 5, it was confirmed that the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention exhibited higher burst strength compared to the recycled functional clothing of the comparative example.

[Experimental Example 5: Measurement of washing dimensional change rate]

For each of the recycled functional garments prepared in Examples 1 to 3 and Comparative Examples, the rate of change in laundry size was measured according to KS K ISO 5077: 2014/KS K ISO 6330: 2011 of the Korea Apparel Testing Institute. The test conditions were machine washed at a temperature of 40±3° C., and dried on a horizontal net. Results according to the test are shown in Table 6 below.

division Whale direction (%) Course direction (%) Example 1 -0.5 -0.5 Example 2 -0.4 -0.3 Example 3 -0.1 -0.1 Comparative example -0.7 -1.2

As shown in Table 6, in the case of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention, it was confirmed that the laundry dimensional change rate was lower than that of the recycled functional clothing of the comparative example.

[Experimental Example 6: Measurement of washing fastness]

Washing fastness was measured according to KS K ISO 105 C10 (2006) of the Korea Apparel Testing Institute for each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples. Test conditions were machine-washed for 30 minutes using 0.5% ISO SOAP standard detergent at a temperature of 40±2° C., and dried on a horizontal net. Results according to the test are shown in Table 7 below.

division Discoloration (grade) Pollution-Cotton (grade) Pollution-polyester (grade) Example 1 4-5 4-5 4-5 Example 2 4-5 5 5 Example 3 5 5 5 Comparative example 3 3 4-5

[Experimental Example 7: Measurement of sweat fastness (acidity)]

For each of the recyclable functional garments prepared in Examples 1 to 3 and Comparative Examples, sweat fastness (acidity) was measured according to KS K ISO E04: 2013 of the Korea Apparel Testing Institute, and the results are shown in Table 8 below. Done.

division Discoloration (grade) Pollution-Cotton (grade) Pollution-polyester (grade) Example 1 4-5 4-5 4-5 Example 2 4-5 4-5 5 Example 3 5 5 5 Comparative example 3 3 3

[Experimental Example 8: Measurement of sweat fastness (alkaline property)]

For each of the recyclable functional garments prepared in Examples 1 to 3 and Comparative Examples, sweat fastness (alkali) was measured according to KS K ISO E04: 2013 of the Korea Apparel Testing Institute, and the results are shown in Table 9 below. Done.

division Discoloration (grade) Pollution-Cotton (grade) Pollution-polyester (grade) Example 1 4-5 4-5 4-5 Example 2 4-5 5 4-5 Example 3 5 5 5 Comparative example 4-5 3 3

[Experimental Example 9: Measurement of friction fastness]

For each of the recycled functional garments manufactured in Examples 1 to 3 and Comparative Examples, friction fastness was measured according to KS K 0650-1: 2017 of the Korea Apparel Testing Institute, and the results are shown in Table 10 below.

division Case (grade) Wet (grade) Example 1 4-5 4-5 Example 2 4-5 5 Example 3 5 5 Comparative example 3 2

As shown in Tables 7 to 10, in the case of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention, friction fastness, discoloration, cotton contamination, and washing fastness to the side of polyester contamination, It was confirmed that improved results were measured in both the sweat fastness (acidity) and sweat fastness (alkaline property) compared to the recycled functional clothing of the comparative example.

[Experimental Example 10: Measurement of drying speed]

The drying speed was measured for each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples. The measurement method was measured according to the KS K 0642 8.25 1 A method: 2016 of the Korea Apparel Testing Institute, and the results are shown in Table 11 below.

division Test result (minutes) Example 1 145 Example 2 127 Example 3 106 Comparative example 237

As shown in Table 11, in the case of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention was confirmed to be dried in a shorter time compared to the comparative example.

[Experimental Example 11: Moisture Control Characteristics of Fiber]

Moisture control properties were measured for each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples. The measurement method was measured according to AATCC 195: 2017 of the Korea Apparel Testing and Research Institute, and the result values are shown in Table 12 below.

division Item Average Example 1 Absorption time (seconds) Top 5.96 Bottom side 5.46 Absorption rate (%/sec) Top 20.22 Bottom side 56.13 Absorption radius (mm) Top 25.0 Bottom side 26.0 Diffusion rate (mm/sec) Top 2.83 Bottom side 3.06 One-way movement performance (%) 395.67 Overall moisture control performance, OMMC 0.78 Example 2 Absorption time (seconds) Top 4.06 Bottom side 4.26 Absorption rate (%/sec) Top 29.84 Bottom side 49.06 Absorption radius (mm) Top 29.4 Bottom side 29.6 Diffusion rate (mm/sec) Top 4.63 Bottom side 6.67 One-way movement performance (%) 408.61 Overall moisture control performance, OMMC 0.80 Example 3 Absorption time (seconds) Top 3.83 Bottom side 3.37 Absorption rate (%/sec) Top 28.79 Bottom side 46.06 Absorption radius (mm) Top 30.0 Bottom side 30.0 Diffusion rate (mm/sec) Top 6.50 Bottom side 7.40 One-way movement performance (%) 486.95 Overall moisture control performance, OMMC 0.87 Comparative example Absorption time (seconds) Top 3.11 Bottom side 3.41 Absorption rate (%/sec) Top 94.06 Bottom side 52.45 Absorption radius (mm) Top 30.0 Bottom side 30.0 Diffusion rate (mm/sec) Top 4.93 Bottom side 4.93 One-way movement performance (%) -55.66 Overall moisture control performance, OMMC 0.37

As shown in Table 12, in the case of the recycled functional clothing of Comparative Example, a larger amount of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention remained on the surface rather than transferred to the rear surface. It was confirmed that most of the moisture was repelled and transferred. The higher the moisture transfer value, the better the sweat discharge function, and thus, it indicates that the recycled functional clothing according to the present invention can be used as functional clothing such as sportswear or inner wear.

[Experimental Example 12: Measurement of antibacterial activity]

For each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples, strain 1 (ATCC 6538, staphylococcus aureus, Staphylococcus aureus, Staphylococcus aureus) and strain 2 (ATCC 4352, klebsiella pneumoniae, pneumococcal) antibacterial activity was measured against two strains. The test conditions were TWEEN80 (0.05%) as a nonionic surfactant, and the laundry was machine washed at a temperature of 40° C. according to KS K ISO 6330: 2011 (8B), and dried on a horizontal net. The measurement result values are shown in Table 13, and culture micrographs of each strain for Example 1 are shown in FIGS. 2 and 3.

division Strain division Test result Blank After washing 3 times Example 1 Strain 1 Initial bacterial count 1.8×10 ⁴ 1.8×10 ⁴ 18 hours later 1.2×10 ⁷ 2.9×10 ³ Bacteriostatic reduction rate (%) - 99.9 Strain 2 Initial bacterial count 1.8×10 ⁴ 1.8×10 ⁴ 18 hours later 4.2×10 ⁷ <10 Bacteriostatic reduction rate (%) - 99.9 Example 2 Strain 1 Initial bacterial count 2.2×10 ⁴ 2.2×10 ⁴ 18 hours later 1.2×10 ⁴ <10 Bacteriostatic reduction rate (%) - 99.9 Strain 2 Initial bacterial count 2.2×10 ⁴ 2.2×10 ⁴ 18 hours later 4.2×10 ⁷ <10 Bacteriostatic reduction rate (%) - 99.9 Example 3 Strain 1 Initial bacterial count 2.2×10 ⁴ 2.2×10 ⁴ 18 hours later 3.8×10 ⁷ <10 Bacteriostatic reduction rate (%) - 99.9 Strain 2 Initial bacterial count 2.0×10 ⁴ 2.0×10 ⁴ 18 hours later 1.3×10 ⁷ <10 Bacteriostatic reduction rate (%) - 99.9 Comparative example Strain 1 Initial bacterial count 1.8×10 ⁴ 1.8×10 ⁴ 18 hours later 9.2×10 ⁷ 5.4×10 ⁷ Bacteriostatic reduction rate (%) - 41.3 Strain 2 Initial bacterial count 1.8×10 ⁴ 1.8×10 ⁴ 18 hours later 4.2×10 ⁷ 3.6×10 ⁷ Bacteriostatic reduction rate (%) - 14.3

As shown in Table 13, in the case of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention, it was confirmed that the recyclable functional clothing of the comparative example exhibits high antimicrobial activity against both Staphylococcus aureus and pneumonia compared to the recycled functional clothing of the comparative example. Could

[Experimental Example 13: Measurement of tensile strength]

For each of the recycled functional garments prepared in Examples 1 to 3 and Comparative Examples, tensile strength was measured according to KS K 1308:2016, C.R.E. of the Korea Apparel Testing Institute, and the results are shown in Table 14 below.

division #One Example 1 Room temperature (N) 1,539 After aging (N) 1,509 Reduction rate (%) 2 Example 2 Room temperature (N) 1,680 After aging (N) 1,659 Reduction rate (%) One Example 3 Room temperature (N) 1,871 After aging (N) 1,866 Reduction rate (%) 0.3 Comparative example Room temperature (N) 1,390 After aging (N) 1,130 Reduction rate (%) 19

[Experimental Example 14: Measurement of tensile elongation]

For each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples, tensile elongation was measured according to KS K 1308:2016, C.R.E. of the Korea Apparel Testing Institute, and the results are shown in Table 15 below.

division Measurement result (%) Example 1 Room temperature (N) 237 After aging (N) 231 Reduction rate (%) 2 Example 2 Room temperature (N) 246 After aging (N) 243 Reduction rate (%) 1.2 Example 3 Room temperature (N) 261 After aging (N) 260 Reduction rate (%) 0.4 Comparative example Room temperature (N) 207 After aging (N) 180 Reduction rate (%) 13

[Experimental Example 15: Measurement of permanent elongation]

Permanent elongation was measured according to KS K 1308:2016, C.R.E. of the Korea Apparel Testing Institute for each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples. The aging was treated for 72 hours at a temperature of 80±1° C., and the results are shown in Table 16 below.

division Measurement result (%) Example 1 Room temperature (N) 3 After aging (N) 4 Example 2 Room temperature (N) 3 After aging (N) 4 Example 3 Room temperature (N) 3 After aging (N) 3 Comparative example Room temperature (N) 3 After aging (N) 5

As shown in Tables 14 to 16, in the case of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention, in terms of tensile strength and tensile elongation, a higher measurement value than the recycled functional clothing of the Comparative Example In the case of permanent elongation, the results showed no significant difference even after aging compared to the recycled functional clothing of Comparative Example.

[Experimental Example 16: Measurement of UV blocking property]

UV protection was measured for each of the recycled functional clothing prepared in Examples 1 to 3 and Comparative Examples. First, each garment was exposed to UV rays of 280 nm to 400 nm for 24 hours and stored at 25° C. for 1 week, and then a weather resistance test was conducted to observe the discoloration process. Observation was performed with the naked eye, and the degree to which a distinct color change appeared was indicated in Table 17 below as a '5' point, and the degree of not appearing as a '0' point.

Item Example 1 Example 2 Example 3 Comparative example Degree of discoloration 3 One 0 4

As shown in Table 17, in the case of the recycled functional clothing of Examples 1 to 3 manufactured by the method according to the present invention, it was confirmed that even after being exposed to ultraviolet rays for 24 hours, it showed higher ultraviolet blocking ability compared to the comparative example. .

In the present specification, only a few examples of various embodiments performed by the present inventors are described, but the technical idea of the present invention is not limited or limited thereto, and it is obvious that it may be modified and variously implemented by those skilled in the art.

Claims (3)

Preparing a blended yarn by blending polyester fibers and polyurethane fibers;
Dyeing the blended yarn by immersing it in a dyeing composition;
Manufacturing a covering yarn by covering the dyed blended yarn on a polyurethane yarn;
Manufacturing a fabric by including the covering yarn as weft and warp; And
Manufacturing functional clothing by dyeing and sewing the fabric;
Containing, functional clothing manufacturing method.
The method of claim 1,
The blended yarn, polyester fiber and polyurethane fiber, characterized in that it is included in a weight ratio of 50: 50 to 95: 5, functional clothing manufacturing method. delete

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