KR20220009587A - Manufacturing composite fiber fabric and composite fiber fabric - Google Patents

Abstract

Provided are a method for manufacturing a composite fiber fabric and a composite fiber fabric manufactured thereby. The method for manufacturing a composite fiber fabric of the present invention comprises the steps of: preparing a first mixture by mixing a first fiber raw material and a metal fine particle; preparing a second mixture by mixing a second fiber raw material and the first mixture; and producing a fiber yarn by spinning the second mixture, wherein the metal fine particle has an average particle diameter of 2-7 μm. In addition, the composite fiber fabric manufactured by the manufacturing method is a fiber material that can secure mechanical properties including elasticity as well as antibacterial properties.

Description

Manufacturing method of composite fiber fabric and composite fiber fabric

It relates to a composite fiber fabric for imparting predetermined functionality and a method for manufacturing the same.

Functional fibers are not the original functions required for original textile products, but additional functions. In recent years, various technological developments have been grafted in the direction of pursuing the unique performance of synthetic fibers as well as making them perform better than natural fibers. In particular, consumers prefer clothing that considers health as well as wearability of textile materials. Furthermore, they are looking for fibers with special functions such as warmth, antibacterial properties, deodorization effects, waterproofing and windproofing. As such, as the needs for providing various functions increase, various types of functional fibers referred to as industrial fibers, special fibers, high-performance fibers, and engineering fibers have been developed. In general, when it comes to functional fibers, their performance should be able to meet a considerable level or more based on special functions. The functional textile industry has a vast variety of types and is divided by production product, and since the development speed of new and innovative products is very fast, the development of textiles suitable for the environmental and social needs of the time is being actively carried out. . For example, Korean Patent Registration No. 10-0822719 proposes a technology for manufacturing a fiber having a far-infrared radiation function by vacuum deposition of germanium, loess, elvan, totmarine, titanium, etc., and Korean Patent Publication No. 10- No. 2011-0015319 proposes a technology for applying nanoparticles such as germanium, tungsten, silicon dioxide, titanium dioxide, and aluminum oxide to textile fabrics.

One embodiment of the present invention prevents the desorption of metal particles during the processing of textile fabrics or during use, such as washing, even when micro-sized metal particles are applied, and mechanical properties such as high elasticity and functionality such as antibacterial function imparted by this Provided is a method for manufacturing a composite fiber fabric having an advantage that physical properties can be maintained for a long time.

Another embodiment of the present invention is a fabric made from functional fiber yarns to which micro-sized metal particles are applied, and at the same time realizes an antibacterial function equal to or higher than that of a fabric to which nano-sized particles are applied, and at the same time, compared to nano-sized particles, the human body caused by inhalation Provided is a composite fiber fabric having an advantage of low toxicity.

In one embodiment of the present invention, mixing a first fiber raw material and metal particles to prepare a first mixture; preparing a second mixture by mixing a second raw material for fibers and the first mixture; and spinning the second mixture to prepare a fiber yarn, wherein the average particle diameter of the metal particles is 2 μm to 7 μm.

In another embodiment of the present invention, it includes a fabric of fiber yarn, and includes metal particles attached to the surface of the fiber yarn or contained in the inside of the fiber yarn, and the average particle diameter of the metal particles is 2 μm to 7 μm , and an antibiosis-process correlation index according to Equation 1 below provides a composite fiber fabric having an antibiosis-process correlation index of 1.5 to 2.0.

[Equation 1]

Antibacterial-process correlation index = maximum radiation content value / initial antibacterial activity value

In Equation 1, the maximum spinning content value means the content [kg] value of the raw material mixture maximally spun without breaking the raw material mixture in the process of spinning the fiber yarn from the raw material mixture, and the initial antibacterial activity value is When the antibacterial properties were evaluated using the antibacterial test method of textile materials according to KS K 0693:2016 standard within 48 hours after manufacturing the fabric, Staphylococcus aureus (Strain 1, Straphylococcus aureus ATCC 6538), Pneumococcus (Strain 2, Klebsiella) pneumoniae ATCC 4352) and Escherichia coli (strain 3, Escherichia coli ATCC 25922).

The composite fiber fabric manufactured according to the manufacturing method of the composite fiber fabric prevents the desorption of metal particles during the processing process of the textile fabric or during use such as washing, even when micro-sized metal particles are applied, and the antibacterial function imparted by this, etc. Its functional properties and mechanical properties such as high elasticity have the advantage that it can be maintained for a long time.

The composite fiber fabric is a fabric made from functional fiber yarn to which micro-sized metal particles are applied, and at the same time realizes an antibacterial function equivalent to or higher than that of the fabric to which nano-sized particles are applied, and at the same time, compared to nano-sized particles, it is harmful to the human body due to inhalation. has a low advantage.

1 schematically shows a flowchart of a method for manufacturing a composite fiber fabric according to an embodiment.
2 schematically shows a flowchart of a method for manufacturing a composite fiber fabric according to a further embodiment.

Advantages and features of the present invention, and a method of achieving them will become clear with reference to the following examples. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, Only the present embodiments are provided to complete the disclosure of the present invention, and to fully inform those of ordinary skill in the art to which the present invention belongs, the scope of the invention, the present invention is defined by the scope of the claims will only be

In the present specification, components described by specific functional names are referred to based on their main functions, and it is not understood that the components do not perform other functions due to these names.

An active ingredient referred to by a specific compound name in the present specification is understood as a concept including a predetermined substituted or modified derivative within a range that does not impair the desired effect.

In one embodiment, preparing a first mixture by mixing the first fiber raw material and the metal fine particles; preparing a second mixture by mixing a second raw material for fibers and the first mixture; and producing a fiber yarn by spinning the second mixture, wherein the average particle diameter of the metal particles is It provides a method of manufacturing a fiber fabric having a thickness of 2 μm to 7 μm.

Recently, as the demand for various functional fabrics increases, various materials are being used to impart functions other than their original functions to fibers or fabrics. However, in order to be sustainable for a long time without deterioration in functionality even during processing or utilization of the manufactured fabric, during the manufacturing or weaving process of the fabric; Alternatively, a fairly high level of skill is required during the manufacturing process of the fiber yarn. In particular, when using a material that has poor physical adhesion or chemical compatibility with fibers, it can be seen that long-term durability is most important.

The manufacturing method of the composite fiber fabric according to an embodiment has significance as a technical means capable of achieving the above object. The manufacturing method of the composite fiber fabric is for manufacturing a fiber fabric containing metal particles having an average particle diameter of 2 μm or more. In the case of metal particles, as a heterogeneous component, which is a material that is completely different from that of the textile fabric, it must be excellent in dispersibility in the textile fabric and physically or chemically adhered to the textile fabric in order to continuously implement the desired function in the state of being contained in the textile fabric for a long period of time. must be excellent The manufacturing method of the composite fiber fabric can be an effective means for this.

The average particle diameter of the metal particles may be about 2 μm or more, for example, about 2 μm to about 7 μm, for example, about 2 μm to about 5 μm, for example, about 2 It may be from about 4 μm to about 4 μm, for example, from about 2 μm to about 3.5 μm, for example, from about 2.5 μm to about 3.0 μm. Since the average particle diameter of the metal particles satisfies the above range, the harmfulness to the human body is lowered compared to the case of metal particles having an average size of several tens or hundreds of nanometers, and despite the use of relatively large metal particles at the micro level, there is no interruption. It has the advantage of radiating.

The metal particles may include one selected from the group consisting of copper (Cu), silver (Ag), germanium (Ge), and combinations thereof.

In one embodiment, the metal particles may include copper (Cu) as a main component. Containing copper (Cu) as a main component means that a component exceeding 90% by weight of the metal component constituting the metal fine particles is copper (Cu), and the content of copper (Cu) in the entire metal component constituting the metal fine particle It may be from about 90% to about 99% by weight. Since the metal particles having an average particle diameter of about 2 μm to about 7 μm include copper (Cu) as a main component, the composite fiber fabric manufactured by the method for manufacturing the composite fiber fabric can simultaneously secure the desired level of elasticity and antibacterial properties. can

1 is a flowchart of a method 100 for manufacturing the composite fiber fabric. Referring to FIG. 1 , the method for manufacturing the composite fiber fabric includes the steps of preparing a first mixture by mixing a first fiber raw material and metal particles ( 10 ) and mixing a second raw material for a fiber and the first mixture to a second and preparing the mixture (20).

In order to manufacture the composite fiber fabric, the fiber yarn must be prepared first. The fiber yarn may be manufactured through a method of spinning a raw material component and extracting it in the form of a filament. In the manufacturing method, the raw material component for manufacturing the fiber yarn may be manufactured in multiple stages as described above. Specifically, the first mixture may be preferentially prepared, and then the second mixture may be prepared by mixing the second raw material with the first mixture. By using the multi-stage raw material manufacturing method as described above, the metal particles can be evenly dispersed in the textile fabric without self-aggregation. The dispersibility of the metal fine particles may be comprehensively affected by the type and content ratio of each component and subsequent process conditions as will be described later along with the multi-stage raw material manufacturing method.

In one embodiment, the first mixture contains about 50 parts by weight or more of the first raw material by weight, for example, about 50 parts by weight to about 75 parts by weight, for example, about 50 parts by weight based on 100 parts by weight of the total weight. It may include from about 70 parts by weight to about 70 parts by weight, for example, about 50 parts by weight to 60 parts by weight, for example, about 50 parts by weight.

In one embodiment, the first mixture is about 12 parts by weight to about 38 parts by weight, for example, about 20 parts by weight to about 38 parts by weight, for example, based on 100 parts by weight of the total weight of the first mixture, About 25 parts by weight to about 38 parts by weight, for example, about 28 parts by weight to about 38 parts by weight may be included.

In one embodiment, the first mixture may be prepared by dispersing the metal particles in the melt of the first raw material while melting the first raw material for fibers. At this time, the temperature for melting the first mixture may be about 80 ℃ to about 250 ℃, for example, may be about 150 ℃ to about 250 ℃, for example, may be about 180 ℃ to about 200 ℃, and , for example, may be from 90 °C to 180 °C, for example, from about 95 °C to about 150 °C.

In one embodiment, the first mixture may further include a dispersant. The dispersant may serve to induce the metal particles to be more evenly dispersed in the first raw material for fibers. The dispersant is, for example, selected from the group consisting of polyethylene-based wax (wax), polypropylene-based wax, ethylenebissteaamide (EBS)-based wax, polyolefin elastomer (POE)-based wax, zinc, and combinations thereof. may contain one. The first mixture contains about 10 parts by weight to 22 parts by weight of the dispersant, for example, about 10 parts by weight to 15 parts by weight, for example, about 12 parts by weight to about 22 parts by weight, based on 100 parts by weight of the total weight. may contain

In the method for manufacturing the composite fiber fabric, after mixing the first fiber raw material and the metal fine particles, the dispersing agent may be further mixed to prepare a first mixture, and after mixing the first fiber raw material with the dispersing agent, the metal fine particles may be further mixed to prepare a first mixture, and after mixing the metal fine particles and the dispersant, the first fiber raw material may be further mixed to prepare the first mixture. Alternatively, the first fiber raw material, the metal fine particles, and the dispersing agent may be weighed and mixed at the same time to prepare a first mixture.

The manufacturing method of the composite fiber fabric includes the step (20) of preparing a second mixture by mixing the first mixture and the second fiber raw material. By preparing a second mixture by mixing a second fiber raw material after preferentially preparing the first mixture, uniform dispersibility of the metal particles can be ensured, and even though the metal particles have a micro size of 2 μm or more And it is possible to obtain the effect of preventing detachment during use, such as processing or washing of the composite fiber fabric.

In one embodiment, the second mixture contains more than about 80 parts by weight of the second raw material by weight, for example, about 82 parts by weight to about 95 parts by weight, for example, about 85 parts by weight based on 100 parts by weight of the total weight. It may be included in an amount of about 95 parts by weight to about 95 parts by weight, for example, about 85 parts by weight to about 94 parts by weight, for example, about 85 parts by weight to about 93 parts by weight. Since the content ratio of the second fiber raw material to the total weight of the second mixture satisfies the above range, it may be advantageous to implement seamless spinning efficiency in the subsequent spinning of the second mixture.

In one embodiment, the second mixture is about 5 parts by weight to 15 parts by weight, for example, about 5.5 parts by weight to about 15 parts by weight, for example, about 6 parts by weight to about 15 parts by weight, for example, about 7 parts by weight to about 15 parts by weight may be included. Since the content ratio of the first mixture to the total weight of the second mixture satisfies the above range, the metal particles may be included in an amount suitable for imparting the desired functionality in the final fabric, and the metal particles are not aggregated during the manufacturing process of the fabric It can be uniformly dispersed and mixed.

In one embodiment, the second mixture may be prepared by adding and mixing the first mixture while melting the second raw material for fibers. In another embodiment, the second mixture may be prepared by mixing the second raw material and the first mixture at the same time.

In one embodiment, the second mixture is a mixture of the first mixture and the second raw material for fibers from about 150° C. to about 300° C., for example, from about 180° C. to about 300° C., for example, from about 200° C. to about It can be prepared by melt mixing at a temperature of 300°C, for example, about 220°C to about 280°C, for example, about 240°C to about 280°C. Through this temperature range process, the first mixture and the second raw material for fibers may be uniformly mixed, and the metal particles in the first mixture may be uniformly mixed in the entire mixture.

The first fiber raw material and the second fiber raw material are each a raw material of a fiber material, and are viscosrayon, polyester, polyethylene (PE), polypropylene (PP), polylactic acid, PLA), cotton (Cotton), nylon (Nylon), pulp (Pulp), and may include one selected from the group consisting of combinations thereof.

In one embodiment, the first raw material for fibers and the second raw material for fibers may each include polypropylene (PP). In this case, each of the first raw material for fiber and the second raw material for fiber may include polypropylene (PP) while also including different kinds of raw material for fibers. The first raw material for fibers and the second raw material for fibers may have the same composition or may have different compositions.

In one embodiment, each of the first fiber raw material and the second raw material fiber may include polyethylene (PE). In this case, each of the first raw material for fiber and the second raw material for fiber may include polyethylene (PE) and different kinds of raw material together. The first raw material for fibers and the second raw material for fibers may have the same composition or may have different compositions.

In one embodiment, the first fiber raw material contains polypropylene (PP), and the process temperature of the step 10 of preparing a first mixture by mixing the first fiber raw material and the metal particles is about 180° C. to about 180° C. It may be about 200°C. As a result, the metal microparticles can be evenly dispersed in the first raw material for fibers, and desired antibacterial properties and mechanical properties can be excellently implemented without impairing the original function of the first raw material for fibers.

In another embodiment, the first fiber raw material contains polyethylene (PE), and the process temperature of the step 10 of preparing the first mixture by mixing the first fiber raw material and the metal fine particles is about 100° C. to about 100° C. It may be 150°C. As a result, the metal microparticles can be evenly dispersed in the first raw material for fibers, and desired antibacterial properties and mechanical properties can be excellently implemented without impairing the original function of the first raw material for fibers.

In the method for manufacturing the composite fiber fabric according to an embodiment, polypropylene (PP) may be applied to the first fiber material and the second fiber material, respectively, and at the same time, the average particle diameter is about 2 μm to about 7 μm By applying phosphorus metal particles, it is possible to secure mechanical properties and antibacterial properties with improved elasticity along with excellent abrasion resistance, light weight and heat retention of polypropylene (PP).

In the method for manufacturing the composite fiber fabric according to another embodiment, polyethylene (PE) may be applied to the first fiber material and the second fiber material, respectively, and at the same time, the average particle diameter is about 2㎛ to about 7㎛ By applying the fine metal particles, it is possible to secure mechanical properties and antibacterial properties with improved elasticity as well as excellent flexibility of polyethylene (PE).

Referring to FIG. 1 , the method of manufacturing the composite fiber fabric includes spinning the second mixture to prepare a fiber yarn ( 30 ).

As a method of spinning the second mixture, at least one of a melt spinning process, a dry spinning process, and a wet spinning process may be applied.

In one embodiment, the second mixture may be spun into a fiber yarn through a melt spinning process. Specifically, the melt of the first fiber material and the melt of the second fiber material and the second mixture of the fluidized phase including the metal particles are extruded through a nozzle having a predetermined size and then cooled and solidified to form an elongated shape. fiber yarns can be obtained.

In one embodiment, the diameter of the nozzle may be from about 0.5 mm to about 2.0 mm, for example, from about 0.8 mm to about 1.5 mm. Since the second mixture contains the particulate metal particles having the above-mentioned average size together with the melt of the fiber raw material, it can be spun according to the conditions of the above-mentioned viscosity and nozzle diameter to produce a uniform fiber yarn without interruption.

In one embodiment, the second mixture is spun through the nozzle under a temperature condition of about 15° C. to about 30° C., for example, about 18° C. to about 25° C., for example, about 20° C. to 23° C. It can be cooled and solidified into a fiber yarn. By spinning under these temperature conditions, the metal particles in the fiber yarn can be firmly attached without detachment, and the thickness of the fiber yarn can be uniformly manufactured.

In one embodiment, the step of manufacturing the fiber yarn by spinning the second mixture may further include applying an emulsion to the fiber yarn that is spun through the nozzle and solidified by cooling. The oil agent is for imparting smoothness, bundling properties, antistatic properties, etc. to the fiber yarn, and the type of the oil agent is not particularly limited, but for example, Oil can be used.

In one embodiment, the step of manufacturing the fiber yarn by spinning the second mixture may further include adding the fiber yarn coated with the emulsion to a drawing roller and then drawing under hot air conditions. This is a step of processing to give the fiber yarn an appropriate orientation to have elasticity and rigidity for compatibilization, for example, from about 100° C. to about 150° C., for example, from about 110° C. to 140° C., for example, It can be stretched under a hot air condition of about 115 ℃ to about 130 ℃.

The stretching roller may include a feed roller having a relatively low rotation speed and a take-up roller having a relatively high rotation speed. As the fiber yarn is wound from the feed roller to the take-up roller, chemical molecules constituting the fiber yarn are rearranged to have an orientation in the fiber axis direction, thereby exhibiting appropriate elasticity.

In one embodiment, in the drawing roller for drawing the fiber yarn prepared from the second mixture, the rotation speed of the feed roller to the rotation speed of the take-up roller may be 1: 1.01 to 1: 5, and , for example, 1: 2 to 1: 4 may be. In spinning and stretching the second mixture containing particulate metal particles having an average particle diameter of 2 μm to 7 μm in the same amount as described above, the rotation speed ratio of the feed roller to the take-up roller satisfies the above range. The yarn can be given a desired level of orientation without being broken.

2 is a flowchart illustrating a method 200 for manufacturing a composite fiber fabric according to a further embodiment. Referring to Figure 2, the manufacturing method of the composite fiber fabric includes the steps of weaving the fiber yarn to manufacture a fabric (40); and heat-treating the fabric (50).

The fabric manufactured by weaving the fiber yarn is a woven fabric; Or it may be a knitted fabric such as warp knitting, circular knitting, weft knitting. The shape of the fabric may be appropriately selected according to the use of the final manufactured composite fiber fabric. By heat-treating the fabric, it is possible to achieve excellent antibacterial properties imparted to the composite fiber fabric, while at the same time providing improved elasticity.

Through the manufacturing method of the composite fiber fabric, even when micro-sized metal particles are applied, it is possible to effectively prevent the desorption of metal particles during the processing process of the textile fabric or during use such as washing, and thus the functionality such as antibacterial function is imparted. It is possible to manufacture a composite fiber fabric having advantages such as long-lasting mechanical properties such as high elasticity and long-term durability and blocking harm to the human body due to inhalation compared to nano-sized particles.

In another embodiment, including a fabric of fiber yarn, including metal particles attached to the surface of the fiber yarn or contained in the inside of the fiber yarn, wherein the average particle diameter of the metal particles is 2 μm to 7 μm, According to Equation 1, antibacterial-process correlation index (antibiosis-process correlation index) of 1.5 to 2.0 provides a composite fiber fabric.

[Equation 1]

Antibacterial-process index = maximum radiation content value / initial antibacterial activity value

In Equation 1, the maximum spinning content value means the content [kg] value of the raw material mixture maximally spun without breaking the raw material mixture in the process of spinning the fiber yarn, and the initial antibacterial activity value is 24 after manufacturing the fabric When the antibacterial properties were evaluated using the antibacterial test method of textile materials according to KS K 0693:2016 standards within hours, Staphylococcus aureus (strain 1, Straphylococcus aureus ATCC 6538), pneumococcus (strain 2, Klebsiella pneumoniae ATCC 4352) and Escherichia coli (strain 3, Escherichia coli ATCC 25922) is an antimicrobial activity [%] value against at least one strain.

When the value of the antibacterial-process correlation index of Equation 1 is less than about 1.5, there is a problem in that the spinning quality is inferior to the antibacterial property of the composite fiber fabric, and when it exceeds about 2.0, the antibacterial property compared to the spinning quality of the composite fiber fabric There is this inferior problem.

The composite fiber fabric may be manufactured by the method for manufacturing the composite fiber fabric described above.

The metal fine particles are attached to the surface of the fiber yarn or contained inside the fiber yarn. That is, the metal particles may be attached to the surface of the fiber yarn or may be disposed inside the fiber yarn filament. The composite fiber fabric may include a plurality of metal particles of two or more, wherein each particle may be independently located on the surface of the fiber yarn or inside the fiber yarn.

The composite fiber fabric is a fabric made from functional fiber yarns to which micro-sized metal particles are applied, and while implementing an antibacterial function equal to or higher than that of nano-sized particles, at the same time, it blocks harmfulness to the human body due to inhalation, and the metal in the fabric It has the advantage that the fine particles are more uniformly dispersed without agglomeration. In addition, it can exhibit improved mechanical properties based on excellent elasticity.

Hereinafter, specific embodiments of the present invention are presented. However, the examples described below are only for specifically illustrating or explaining the present invention, and the present invention is not limited thereto.

<Examples and Comparative Examples>

Examples 1-1 to 1-2 and Comparative Examples 1-1 to 1-3 below describe various examples according to the average particle diameter of the metal fine particles as shown in Table 1 below. In Table 1 below, the numerical value corresponding to each component means parts by weight.

Example 1-1

A first fiber raw material (Lotte Chemical) containing polypropylene (PP) was prepared. 30 kg of copper (Cu) particles having an average particle diameter of 2.70 μm and a purity of 99% are added to 50 kg of the first fiber raw material, 15 kg of a dispersant (Lion Camtech, etc.) A first mixture was prepared by extrusion. A second fiber raw material (LG Chem) containing polypropylene (PP) was prepared. A second mixture was prepared by mixing the first mixture while melting the second fiber raw material, and the second mixture was prepared by mixing 7 parts by weight of the first mixture with respect to 100 parts by weight of the total weight of the second mixture. . After the second mixture was sufficiently melted and extruded through a nozzle having a diameter of 1 mm, it was cooled at 20 (ㅁ2)° C., and oil was applied to the surface to prepare a fiber yarn. The oil-coated fiber yarn is put into a drawing roller including a feed roller with a relatively slow rotation speed and a take-up roller with a relatively high rotation speed, and then stretched under a hot air condition at 120 ° C. A final fiber yarn was prepared. Then, the fiber yarns were woven into warp knits or wefts, and then heat-treated to prepare a composite fiber fabric.

Example 1-2

A composite fiber fabric was prepared in the same manner as in Example 1-1, except that copper (Cu) particles having an average particle diameter of 2.00 μm were used.

Comparative Example 1-1

A composite fiber fabric was prepared in the same manner as in Example 1-1, except that copper (Cu) particles having an average particle diameter of 1.00 μm were used.

Comparative Example 1-2

A composite fiber fabric was prepared in the same manner as in Example 1-1, except that copper (Cu) particles having an average particle diameter of 30 μm were used.

Comparative Example 1-3

A composite fiber fabric was prepared in the same manner as in Example 1-1, except that copper (Cu) particles having an average particle diameter of 20 μm were used.

Example 1-1 Example 1-2 Comparative Example 1-1 Comparative Example 1-2 Comparative Example 1-3 metal particles chief ingredient Copper (Cu) Copper (Cu) Copper (Cu) Copper (Cu) Copper (Cu) Size [㎛] 2.70 2.00 1.00 30 20 first mixture first fiber raw material 50 50 50 50 50 metal particles 30 30 30 30 30 second mixture Second Fiber Raw Material 93 93 93 93 93 first mixture 7 7 7 7 7

Examples 2-1 to 2-2 and Comparative Examples 2-1 to 2-2 below describe various examples according to the content ratio of the first fiber raw material and the metal fine particles in each first mixture as shown in Table 2 below. did it In Table 2 below, the numerical value corresponding to each component means parts by weight.

Example 2-1

A composite fiber fabric was prepared in the same manner as in Example 1-1.

Example 2-2

In the manufacturing step of the first mixture, 50 kg of the first fiber raw material, 38 kg of the metal particles, and 12 kg of the dispersant were added to prepare a first mixture, except that the first mixture was prepared in the same manner as in Example 1-1. was prepared.

Comparative Example 2-1

In the manufacturing step of the first mixture, 75 kg of the first fiber raw material, 5 kg of the metal particles, and 20 kg of the dispersant were added to prepare a first mixture, except that the first mixture was prepared in the same manner as in Example 1-1. was prepared.

Comparative Example 2-2

In the manufacturing step of the first mixture, a composite fiber fabric was prepared in the same manner as in Example 1-1, except that 55 kg of the metal particles were added to 25 kg of the first fiber raw material to prepare a first mixture. .

Example 2-1 Example 2-2 Comparative Example 2-1 Comparative Example 2-2 metal particles chief ingredient Copper (Cu) Copper (Cu) Copper (Cu) Copper (Cu) Size [㎛] 2.70 2.70 2.70 2.70 first mixture first fiber raw material 50 50 75 25 metal particles 30 38 5 55 second mixture Second Fiber Raw Material 93 93 93 93 first mixture 7 7 7 7

Examples 3-1 to 3-2 and Comparative Examples 3-1 to 3-2 below show various examples according to the content ratio of the second fiber raw material and the first mixture in each second mixture as shown in Table 3 below. it will be described In Table 3 below, the numerical value corresponding to each component means parts by weight.

Example 3-1

A composite fiber fabric was prepared in the same manner as in Example 1-1.

Example 3-2

In the manufacturing step of the second mixture, with respect to 100 parts by weight of the total weight of the second mixture, 90 parts by weight of the second fiber raw material and 10 parts by weight of the first mixture were added and mixed to prepare a second mixture , A composite fiber fabric was prepared in the same manner as in Example 1-1.

Comparative Example 3-1

In the manufacturing step of the second mixture, with respect to 100 parts by weight of the total weight of the second mixture, 80 parts by weight of the second fiber raw material and 20 parts by weight of the first mixture were added and mixed to prepare a second mixture , A composite fiber fabric was prepared in the same manner as in Example 1-1.

Comparative Example 3-2

In the manufacturing step of the second mixture, with respect to 100 parts by weight of the total weight of the second mixture, 97 parts by weight of the second fiber raw material and 3 parts by weight of the first mixture were added and mixed to prepare a second mixture , A composite fiber fabric was prepared in the same manner as in Example 1-1.

Example 3-1 Example 3-2 Comparative Example 3-1 Comparative Example 3-2 metal particles chief ingredient Copper (Cu) Copper (Cu) Copper (Cu) Copper (Cu) Size [㎛] 2.70 2.70 2.70 2.70 first mixture first fiber raw material 50 50 50 50 metal particles 30 30 30 30 second mixture Second Fiber Raw Material 93 90 80 97 first mixture 7 10 20 3

<Evaluation>

Evaluation Example 1: Radiation quality evaluation

For each of the Examples and Comparative Examples, the spinning quality was evaluated according to the following evaluation criteria. The results are as shown in Table 4 below.

<Evaluation criteria>

Excellent: radiated without breakage

Normal: break after 80 kg to 150 kg of second mixture spinning

Inferiority: Broken after spinning to 80 kg or less of the second mixture

Evaluation Example 2: Antimicrobial evaluation

Antibacterial properties were evaluated for the composite fiber fabrics of each Example and Comparative Example using the antibacterial test method of fiber materials according to KS K 0693:2016 standard. After each sample was sterilized at 121°C in a high-temperature autoclave (autoclave) within 48 hours after each composite fiber fabric was manufactured, Staphylococcus aureus (Strain 1, Straphylococcus aureus ATCC 6538), Streptococcus pneumoniae (Strain 2, Klebsiella) pneumoniae ATCC 4352) and Escherichia coli (strain 3, Escherichia coli ATCC 25922) were inoculated with 5.0 g, respectively, and cultured for 18 hours. The results are as shown in Table 4 below.

Evaluation Example 3: Antimicrobial-Process Correlation Evaluation

Initial antibacterial activity [%] value indicated by the maximum spinning content [kg] value of the second mixture measured by Evaluation Example 1 and the bacteriostatic reduction rate measured by Evaluation Example 2 for the composite fiber fabrics of each Example and Comparative Example Using the antibacterial-process correlation index (antibiosis-process correlation index) according to Equation 1 was derived. The results are as shown in Table 4 below.

[Equation 1]

Antibacterial-process index = maximum radiation content value / initial antibacterial activity value

Example comparative example 1-1 1-2 2-2 3-2 1-1 1-2 1-3 2-1 2-2 3-1 3-2 radiation quality Great Great Great Great usually inferior inferior Great inferior inferior usually antibacterial
[%] Early strain 1 99.9 99.9 99.8 99.6 95.7 - - 79.2 - - 75.4 strain 2 99.9 99.8 99.9 99.5 96.3 - - 79.5 - - 74.8 strain 3 99.9 99.8 99.7 99.2 97.1 - - 77.8 - - 76.4 you
Ji
power strain 1 99.9 99.9 99.8 99.6 94.5 - - 76.0 - - 74.3 strain 2 99.9 99.8 99.9 99.5 96.3 - - 78.2 - - 74.8 strain 3 99.9 99.8 99.7 99.2 97.0 - - 77.8 - - 75.2 antibacterial-process
correlation index strain 1 1.70 1.70 1.70 1.71 1.04 - - 2.15 - - 1.33 strain 2 1.70 1.70 1.70 1.71 1.04 - - 2.14 - - 1.34 strain 3 1.70 1.70 1.71 1.71 1.03 - - 2.19 - - 1.31

*Retention: Evaluated in the same way as in the beginning after washing 100 times or more for a month

Referring to Table 4, in Comparative Examples 1-2, 1-3, 2-2, and 3-1, the production of the fiber fabric was difficult due to the reason such as frequent breakage in the spinning process of the fiber yarn due to inferior spinning quality. It has not been able to produce the possible level of yarn.

In addition, in the case of Examples 1-1, 1-2, 2-2 and 3-2, the value of the antibacterial-process correlation index according to Formula 1 is 1.5 to 2.0, more specifically, a value of 1.7 to 1.9 By being satisfied, it was confirmed that the radiation quality was superior to that of Comparative Examples 1-1 and 3-2, whose value was less than 1.5, and that the value was superior to that of Comparative Example 2-1, whose value was greater than 2.0, in comparison to the radiation quality. could check

100, 200: flow chart of manufacturing method of composite fiber fabric
10: first mixture preparation step
20: second mixture preparation step
30: fiber yarn manufacturing step
40: fabric manufacturing step
50: fabric heat treatment step

Claims (9)

preparing a first mixture by mixing the first fiber raw material and the metal fine particles;
preparing a second mixture by mixing a second raw material for fibers and the first mixture; and
Including; spinning the second mixture to prepare a fiber yarn;
The average particle diameter of the metal fine particles is 2㎛ to 7㎛
A method for manufacturing a composite fiber fabric.
According to claim 1,
The first mixture comprises 12 parts by weight to 38 parts by weight of the metal fine particles based on 100 parts by weight of the total weight of the first mixture,
A method for manufacturing a composite fiber fabric.
According to claim 1,
The first mixture further comprises a dispersant,
A method for manufacturing a composite fiber fabric.
According to claim 1,
The second mixture comprises 5 to 15 parts by weight of the first mixture based on 100 parts by weight of the total weight of the second mixture,
A method for manufacturing a composite fiber fabric.
According to claim 1,
Each of the first fiber raw material and the second fiber raw material,
Viscosrayon, Polyester, Polyethylene, PE, Polypropylene, PP, Polylacticacid, PLA, Cotton, Nylon, Pulp and comprising one selected from the group consisting of combinations thereof,
A method for manufacturing a composite fiber fabric.
According to claim 1,
manufacturing a fabric by weaving the fiber yarn; and
Further comprising; heat-treating the fabric;
A method for manufacturing a composite fiber fabric.
According to claim 1,
The step of producing a fiber yarn by spinning the second mixture,
Further comprising the step of applying an emulsion to the fiber yarn,
A method for manufacturing a composite fiber fabric.
8. The method of claim 7,
Further comprising the step of adding the fiber yarn coated with the oil agent to a drawing roller and then drawing under hot air conditions,
A method for manufacturing a composite fiber fabric.
comprising a fabric of textile yarn;
It includes metal particles attached to the surface of the fiber yarn or contained inside the fiber yarn,
The average particle diameter of the metal fine particles is 2㎛ to 7㎛,
Antibiosis-process correlation index (antibiosis-process correlation index) by the following formula 1 is 1.5 to 2.0
Composite Fiber Fabric:
[Equation 1]
Antibacterial-process correlation index = maximum radiation content value / initial antibacterial activity value
In Equation 1 above,
The maximum spinning content value means the content [kg] value of the raw material mixture that is spun to the maximum without breaking the raw material mixture in the process of spinning the fiber yarn from the raw material mixture,
The initial antibacterial activity value was obtained when the antimicrobial activity was evaluated using the antibacterial test method of the textile material according to KS K 0693:2016 standard within 48 hours after manufacturing the fabric, Staphylococcus aureus (strain 1, Straphylococcus aureus ATCC 6538), pneumococcus (Strain 2, Klebsiella pneumoniae ATCC 4352) and Escherichia coli (Strain 3, Escherichia coli ATCC 25922) is the bacteriostatic reduction rate [%] value for at least one strain.

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