KR102472272B1 - Method for manufacturing soft and lightweight new material sweater garments and garments manufactured accordingly - Google Patents

Abstract

The present invention relates to a method for manufacturing soft, lightweight new material sweater clothing, and clothing manufactured thereby. The method includes: a first step of applying a disinfectant by passing any one selected from a polypropylene spun yarn, a nylon filament yarn, and a polyurethane spun yarn through a disinfectant application unit, drying the same, and supplying the same to a covering yarn; a second step of manufacturing an elastic yarn by using any one selected from a group consisting of polyurethane foam products, PBT, and PTT as a raw material, and supplying the elastic yarn as a core yarn; a third step of manufacturing an elastic composite yarn by wrapping the elastic yarn with the covering yarn using a covering machine in a state where the elastic yarn is stretched 1 to 3 times; a fourth step of supplying the elastic composite yarn to an antibacterial agent applicator and then, immersing the elastic composite yarn in an antibacterial composition and aging the same; a fifth step of drawing out the elastic composite yarn obtained in the fourth step and then, drying the elastic composite yarn while passing the same through a drying furnace; a sixth step of weaving a fabric by supplying the elastic composite yarn dried in the fifth step to a knitting machine; a seventh step of arranging a pattern on the fabric woven in the sixth step, marking along the outline of the pattern, and cutting along the marked line to make front, back, and sleeve fabric parts; and an eighth step of manufacturing a finished clothing product by sewing and connecting the front, back, and sleeve fabric parts obtained in the seventh step. Warmth and comfort can be improved.

Description

Method for manufacturing soft and lightweight new material sweater garments and garments manufactured accordingly}

The present invention relates to a method for manufacturing a soft, lightweight new material sweatshirt that can realize a cashmere feel and increase heat retention, and clothes manufactured accordingly.

In general, clothes have been worn a lot for the purpose of individual production in various places or where a difference in temperature occurs due to changes in climatic conditions due to periodic seasonal changes.

BACKGROUND OF THE INVENTION [0002] Tops in which a body part is integrally formed, such as sweaters or knits, have been manufactured and worn to have warmth.

However, it is not enough to wear only knitwear for warmth in winter, so you must wear winter clothing over it.

On the other hand, cashmere has recently been in the limelight as a fabric for winter clothing.

Cashmere is slightly less durable than wool (wool, wool), but has better elasticity, elasticity, and gloss. In addition, the fiber is quite light and thin, so it is soft and warm. Like wool, it is resistant to mold.

Its biggest feature is warmth eight times higher than wool. Therefore, it is mainly used for winter clothing, and the more cashmere is used in the fabric, the thinner, lighter and warmer the clothes are, but the price is very expensive.

In addition, there are disadvantages in that the price is high because the production volume is small, the durability is low, so special attention is required for washing or storage, and the friction is particularly weak, so fluff is easily generated.

In addition, since sweatshirts using cashmere are very expensive, there was a limit to popular distribution.

Republic of Korea Patent Application No. 10-2015-0137525

The present invention has been made to solve the problems of the prior art, and manufactures a sweatshirt with a relatively thin thickness, but has a structure similar to cashmere and has elastic elasticity, so that warmth and comfort can be improved, and manufacturing costs can be reduced. Its purpose is to provide a manufacturing method for soft and lightweight new material sweater clothing that enables popular dissemination and clothing manufactured accordingly.

An object of the present invention described above is to pass any one selected from polypropylene spun yarn, nylon filament yarn, and polyurethane spun yarn through the disinfectant application unit to apply the disinfectant, dry it, and then supply it to the covering yarn; A second step of manufacturing elastic yarn using any one selected from the group consisting of polyurethane foam products, PBT, and PTT as a raw material and supplying it to screening; a third step of manufacturing an elastic composite yarn by wrapping the elastic yarn with the covering yarn using a covering machine in a state where the elastic yarn is stretched 1 to 3 times; Step 4 of supplying the elastic composite yarn to an antibacterial agent applicator and then immersing it in an antibacterial composition and aging it; Step 5 of drawing out the elastic composite yarn obtained in step 4 and then drying it while passing it through a drying furnace; Step 6 of weaving a fabric by supplying the elastic composite yarn dried in step 5 to a knitting machine; Step 7 of arranging a pattern on the fabric woven in step 6, marking along the outline of the pattern, and cutting along the marked line to make front, back, and sleeve fabric parts; It can be achieved by a method for manufacturing sweaters including step 8 of sewing and connecting the front plate, back plate, and sleeve fabric parts obtained in step 7 to manufacture a finished garment product.

The disinfectant application unit of the first step includes a main body formed on both sides of an inlet portion through which the covering yarn is introduced and an outflow portion through which the covering yarn is drawn out; a spray nozzle formed inside the main body to spray a disinfectant to the covering yarn; A tank connected to the injection nozzle and filled with a sterilizing agent; wherein the sterilizing agent includes a main agent obtained by mixing purified water and sodium hypochlorite, and an adjuvant mixed with the main agent, wherein the adjuvant includes benzalkonium chloride and benzyl chloride It is characterized in that at least one is selected from the group consisting of tonium and chlorhexidine.

It is characterized in that the insect repellent is applied to the outer surface of the elastic composite yarn in the third step to have insect repellent performance.

The insect repellent is characterized in that it is an ester compound having an alkyl group, a cycloalkyl group, or a haloalkyl group.

The antibacterial composition of step 4 is characterized in that the antibacterial agent, aromatic oil, and useful microbial fermentation broth are mixed.

The antibacterial agent is any one or a mixture of two or more selected from the group consisting of aluminum hydroxide, zirconium hydroxide, silver, and platinum, and the fragrance oil is any one or two selected from the group consisting of lavender essential oil, lemon essential oil, and pine needle extract oil It is characterized in that it is a mixture of the above.

The useful microbial fermented liquid is characterized in that it is prepared by mixing the useful microbial stock solution, rice water, and salt with the fermented soybean extract.

The fabric of step 6 is woven by weft knitting or warp knitting so that concave-convex portions are formed, and the concave-convex portion is characterized in that the concave-convex portion is formed so that concave and convex portions having a thickness difference are repeatedly formed.

The eighth step is characterized in that it further includes a step of sewing and connecting the front plate, back plate, and sleeve fabric parts, inserting an insect repellent core material into the connection part, folding it, and then sewing it with thread.

The insect repellent core material is characterized in that it is formed by coating a yarn made of cotton or hemp and an insect repellent on the yarn.

In step 7, the front plate, back plate, and sleeve fabric parts are put into the conveying part, moved from the conveying part, put into the softener tank, immersed in the fabric, and then washed by spraying washing water from the upper washing part to make the fabric softer. It is characterized by including.

According to the present invention, while manufacturing a sweatshirt with a relatively thin thickness, it has a structure similar to cashmere and has elastic elasticity, so that heat retention and wearing comfort can be improved, and the manufacturing cost can be reduced to enable popular dissemination. have.

1 is a process flow chart showing a method of manufacturing a soft lightweight new material sweater clothing according to the present invention;
2 is a view illustrating a manufacturing process of a soft lightweight new material sweater garment according to the present invention;
Figure 3 is a perspective view showing the fabric materials of the soft lightweight new material sweater clothing according to the present invention;
4 is an enlarged cross-sectional view showing an 'insect-repellent core' of a soft, lightweight new material sweater garment according to the present invention;
5 is a front view showing a 'transfer unit' in the process of manufacturing a soft, lightweight new material sweater garment according to the present invention;
FIG. 6 is an enlarged view of an 'outlet' in FIG. 5;

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes can be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents or substitutes to the embodiments are included within the scope of rights.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only, and may be modified and implemented in various forms. Therefore, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various components, such terms should only be construed for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle.

Terms used in the examples are used only for descriptive purposes and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

In addition, in the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description will be omitted.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims.

In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are the same as those commonly understood by one of ordinary skill in the art to which the present invention belongs. It has meaning. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning not be interpreted as

The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are illustrative, so the present invention is not limited to the details shown. In addition, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification is used, other parts may be added unless 'only' is used. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

In interpreting the components, even if there is no separate explicit description, it is interpreted as including the error range.

In the case of a description of a positional relationship, for example, 'on top of', 'on top of', 'at the bottom of', 'next to', etc. Or, unless 'directly' is used, one or more other parts may be located between the two parts.

When an element or layer is referred to as “on” another element or layer, it includes all cases where another element or layer is directly on top of another element or another layer or other element intervenes therebetween. Like reference numbers designate like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of description, and the present invention is not necessarily limited to the size and thickness of the illustrated components.

Each feature of the various embodiments of the present invention can be partially or entirely combined or combined with each other, and as those skilled in the art can fully understand, various interlocking and driving operations are possible, and each embodiment can be implemented independently of each other. It may be possible to implement together in an association relationship.

Among the accompanying drawings, FIG. 1 is a process flow diagram showing a manufacturing method of a soft, lightweight new material sweater garment according to the present invention, FIG. 2 is a view illustrating a manufacturing process of a soft, lightweight new material sweater garment according to the present invention, and FIG. A perspective view showing the fabric materials of the soft lightweight new material sweater clothing according to the present invention, Figure 4 is an enlarged cross-sectional view showing the 'insect repellent core material' of the soft lightweight new material sweater clothing according to the present invention, Figure 5 is a soft lightweight new material sweater clothing according to the present invention FIG. 6 is a front view showing the 'transporting part' in the process of manufacturing new material sweater clothing, and FIG. 6 is an enlarged view of the 'outlet' in FIG. 5 .

The method for manufacturing a soft, lightweight new material sweater garment according to the present invention,

A first step (S1) of supplying the covering yarn 2 in which the spun yarn is coated with the disinfectant;

Step 2 (S2) of manufacturing elastic yarn and supplying it to screening (4);

A third step (S3) of manufacturing an elastic composite yarn (L) by wrapping the elastic yarn with the covering yarn (2);

A fourth step (S4) of supplying the elastic composite yarn (L) to an antimicrobial agent applicator (28) and then immersing and aging the antimicrobial composition;

Step 5 (S5) of drawing out the elastic composite yarn (L) obtained in step 4 (S4) and drying it while passing it through a drying furnace (29);

Step 6 (S6) of weaving a fabric (M) by supplying the elastic composite yarn (L) dried in step 5 (S5) to a knitting machine;

After arranging the pattern on the fabric (M) woven in step 6 (S6), marking along the outline of the pattern, and cutting along the marked line to attach the front (M1), back (M2), and sleeve (M3) fabrics. Step 7 of making (S7);

Step 8 (S8) of manufacturing a finished clothing product by sewing and connecting the front, back, and sleeve fabric parts obtained in step 7 (S7).

Each step is described in detail below.

[Step 1 (S1)]

A fiber selected from polypropylene spun yarn, nylon filament yarn, and polyurethane spun yarn is passed through the disinfectant application unit to apply the disinfectant, dried, and then supplied to the covering yarn (2).

Polypropylene is a kind of synthetic fiber and has low specific gravity and excellent strength and elasticity.

Nylon filament yarn refers to a yarn made by combining or joining nylon continuous filaments by twisting or other methods.

Polyurethane spun yarn has excellent elasticity, abrasion resistance, and processability.

In the disinfectant application unit 22 of the first step (S1), a main body 23 having an inlet portion into which the covering yarn 2 is introduced and a withdrawal portion into which the covering yarn 2 is drawn are formed on both sides and have a space therein. ), and a plurality of injection nozzles 25 are formed inside the main body 23. Therefore, the disinfectant is sprayed on the covering yarn 2 introduced from the inlet and passed through the outlet and discharged.

Inside or outside the main body 23, a tank 26 connected to the spray nozzle 25 and filled with a disinfectant is provided.

The disinfectant is made by mixing a main agent formed by mixing purified water and sodium hypochlorite, and an adjuvant mixed with the main agent.

The adjuvant is one or more selected from the group consisting of benzalkonium chloride, benzethonium chloride, and chlorhexidine.

Benzalkonium chloride is not very soluble in water, but has disinfecting power.

Benzethonium chloride is used as a surfactant, disinfectant, anti-infective agent, and topical antibacterial agent for emergency treatment, etc., and is effective in removing bacteria, fungi, fungi, and viruses.

Chlorhexidine has disinfecting power and is effective in removing microorganisms.

[Step 2 (S2)]

An elastic yarn is prepared using any one selected from the group consisting of polyurethane foam products, PBT (polybutylene terephthalate), and PTT (polytrimethylene terephthalate) as a raw material, and supplied to the screening 4.

Elastic yarn is a material having an elongation rate, and a polyurethane foam product obtained by mixing polyurethane, polyol, and isocyanate may be applied, and spandex, known as a fiber having elasticity, is used as the polyurethane type.

Spandex does not age, can be spun into thin threads, and has good dyeability.

PBT (polybutylene terephthalate) is used as a material for stretch, has good elasticity recovery, is flexible, and has good dyeability.

PTT (Polytrimethylene terephthalate) is a type of aromatic polyester polymer and has excellent elasticity and soft touch.

The elastic yarn made of any of the above-mentioned raw materials has an elongation of 500 to 800%, an excellent elasticity recovery rate, and a soft touch.

[Step 3 (S3)]

In a state where the elastic yarn core 4 is stretched 1 to 3 times in advance, the outer surface is wrapped with the covering yarn 2 through a covering machine. In this way, the elastic composite yarn (L) is manufactured.

When the elastic yarn is used alone, it is covered with a covering yarn because it may protrude on the surface of the clothing when it is aged.

As another embodiment, the elastic composite yarn (L) may be passed through the coating roller 27 to apply an insect repellent to the outer surface to have insect repellent performance.

The insect repellent is an ester compound having an alkyl group, a cycloalkyl group, or a haloalkyl group.

[Step 4 (S4)]

After supplying the elastic composite yarn (L) to the antibacterial agent applicator 28, it is immersed in the antibacterial composition and aged.

The antibacterial composition is composed of a mixture of an antibacterial agent, a fragrance oil, and a fermented liquid of useful microorganisms.

The antibacterial agent is any one or a mixture of two or more selected from the group consisting of aluminum hydroxide, zirconium hydroxide, silver, and platinum.

Antibacterial performance by the antibacterial agent can be exhibited, and bacteria and germs can be removed.

The fragrance oil is any one or a mixture of two or more selected from the group consisting of lavender essential oil, lemon essential oil, and pine needle extract oil. Sterilization and disinfection efficacy can be exerted by the aromatic component.

The useful microorganism fermented liquid is prepared by mixing the useful microorganism stock solution, rice water, and salt with the fermented soybean extract.

Useful microbial fermented broth removes harmful bacteria with beneficial bacteria and removes odors.

[Step 5 (S5)]

After withdrawing the elastic composite yarn (L) obtained in step 4 (S4), put it into the drying furnace 29 and dry it while maintaining the internal temperature of the drying furnace 29 at 40 to 50 ° C.

[Step 6 (S6)]

The elastic composite yarn (L) dried in step 5 is supplied to the knitting machine to weave the fabric (M).

Since the finished clothing product manufactured in the present invention is a sweater, it is preferable to use a flat knitting machine.

The fabric M woven in this way may be woven by weft knitting or warp knitting so as to form concave-convex portions.

The concavo-convex portion is formed by repeatedly forming the concave portion M-2 and the convex portion M-4 having a thickness difference.

The waist portion M-2 is thinner than the convex portion M-4 and has a high elongation rate due to the characteristics of the elastic yarn, so that the clothes have elasticity.

Therefore, when the fabric (M) is stretched (when wearing or taking off clothes or during activity), the waist portion (M-2) woven with elastic yarn is stretched and stretched, and when it is contracted, the waist portion (M-2) is contracted, so the convex portion (M -4) can come close to each other, so the overall thickness of the fabric (M) can be maintained thick.

The eighth step (S8) further includes a process of sewing and connecting the fabric parts of the front plate (M1), back plate (M2), and sleeve (M3), inserting the insect repellent core (3) into the connection part, folding it, and sewing it with thread. do.

Referring to FIG. 4 , the insect repellent core material 3 is manufactured by twisting several threads made of cotton or hemp, and coating the thread with an insect repellent.

In addition, the insect repellent core 3 may be fixed by sewing the cover 32 and the insect repellent core 3 with thread after the cover 32 is disposed on the outer surface.

Therefore, the insect repellent component can be exerted.

Meanwhile, in step 7 (S7), the fabric parts of the front plate (M1), back plate (M2), and sleeve (M3) are put into the transfer unit (A), moved, put into the softener tank (370), immersed, and then removed, and then the upper part is washed. It may include a process of washing by spraying washing water from the unit to make the fabric soft.

Referring to Figures 5 and 6, the transfer unit (A), the base 100 supported on the ground; A main body 200 mounted on the base 100, having an inlet on one side, an outlet on the other side, and a passage therein; A conveyor belt 320 mounted inside the passage of the main body 200, driven rollers and main rollers are connected to both sides, and fine perforations are formed to run; a softener tank 370 filled with a softener through which the conveyor belt 320 passes; A washing water supply pipe 620 mounted outside the main body 200, a header 640 formed above the passage of the washing water supply pipe 620 and communicating with the washing water supply pipe 620, and a plurality of headers 640 It includes; a washing water supply unit 600 composed of nozzles 650 that are formed individually.

A recovery unit 260 is formed in the lower part of the main body 200 to recover washing water.

The recovery unit 260 is composed of a tray 262 in which the washing liquid passing through the conveyor belt 320 is collected, and an outlet 250 formed in the tray 262 .

Corresponding to the outlet 250, a return tank 270 is disposed to recover the washing liquid.

The water exchange tank 270 is mounted on the lower part of the base 100 and is disposed under the recovery part 260 to store the washing liquid.

It includes a circulation pipe 272 connected to the return water tank 270 and connected to the washing water supply pipe 620 of the washing water supply unit 600, and a pump 274 connected to the circulation pipe 272 to pump washing water. . Therefore, the washing water collected in the return tank 270 by the operation of the pump 274 can be recovered and reused.

A filter member 280 mounted at the inlet of the return water tank 270 and corresponding to the outlet 250; may be included.

The filter member 280 includes a sieve 282 having micro-holes and a filter 284 formed inside the sieve 282 and passing washing water therethrough. Thus, foam can be removed and dirt can be filtered out.

In order to make the filter member 280 detachable, at the inlet of the water return tank 270, a holding bar 271 on which the filter member 280 is mounted is formed on both sides, and a strainer 282 is placed on the upper bar ( A step 283 hanging on 271 is formed.

Therefore, by filtering and removing foreign substances and bubbles in the sieve 282, the washing water can be reused.

The outlet 250 has a rail 252 formed therein, and includes a separating plate 254 coupled to and detachable from the rail 252 .

The separation plate 254 is formed with a plurality of discharge holes 255 to enable the discharge of washing water, and a plurality of inclined protrusions 256 are formed on the upper surface.

The inclined protrusion 256 is formed between the discharge holes 255 so that the washing water can be concentrated into the discharge hole 255, and is formed to have a triangular cross section by folding a plate material.

Therefore, the washing water flows down the inclined surface of the inclined protrusion 256 and flows down into the discharge hole 255, and foreign substances of large particles can be filtered out.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present invention. . Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

2: Covering company 4: Examination
L: elastic composite yarn 23: main body
25: injection nozzle 27: coating roller
29: drying furnace M: fabric
M-2: Lumbar M-4: Iron
A: transport part

Claims (3)

A first step of applying a disinfectant by passing any one selected from polypropylene spun yarn, nylon filament yarn, and polyurethane spun yarn through a disinfectant application unit, drying it, and supplying it to a covering yarn;
A second step of manufacturing elastic yarn using any one selected from the group consisting of polyurethane foam products, PBT (polybutylene terephthalate), and PTT (polytrimethylene terephthalate) as a raw material and supplying it to screening;
a third step of manufacturing an elastic composite yarn by wrapping the elastic yarn with the covering yarn using a covering machine in a state where the elastic yarn is stretched 1 to 3 times;
Step 4 of supplying the elastic composite yarn to an antibacterial agent applicator and then immersing it in an antibacterial composition and aging it;
Step 5 of drawing out the elastic composite yarn obtained in step 4 and then drying it while passing it through a drying furnace;
Step 6 of weaving a fabric by supplying the elastic composite yarn dried in step 5 to a knitting machine;
Step 7 of arranging a pattern on the fabric woven in step 6, marking along the outline of the pattern, and cutting along the marked line to make front, back, and sleeve fabric parts;
Step 8 of manufacturing a finished clothing product by sewing and connecting the front, back, and sleeve fabric parts obtained in step 7;
Applying an insect repellent to the outer surface of the elastic composite yarn in the third step,
The insect repellent is an ester compound having an alkyl group, a cycloalkyl group, or a haloalkyl group,
The antibacterial composition of step 4 is made by mixing an antibacterial agent, a fragrance oil, and a fermented liquid of useful microorganisms,
The fabric of step 6 is woven with weft or warp knitting so that concave and convex parts are formed, and the concave and convex parts are made by repeatedly forming concave and convex parts having a thickness difference,
The 7 steps above
Including a step of putting front, back, and sleeve fabric parts into a transfer unit, moving them from the transfer unit, putting them in a softener tank, immersing them, taking out the fabric, and then spraying washing water from the upper washing unit to wash the fabric so that it becomes soft,
The eighth step includes a step of sewing and connecting the front plate, back plate, and sleeve fabric parts, inserting an insect repellent core material into the connection part, folding it, and then sewing it with a thread to connect it.
The method of manufacturing a sweater garment, characterized in that the insect repellent core material is formed by coating a yarn made of cotton or hemp and an insect repellent on the yarn. According to claim 1,
The disinfectant application unit of the first step includes a main body formed on both sides of an inlet portion through which the covering yarn is introduced and an outflow portion through which the covering yarn is drawn out; a spray nozzle formed inside the main body to spray a disinfectant to the covering yarn; It includes a; tank connected to the injection nozzle and filled with a sterilant,
The disinfectant includes a main agent obtained by mixing purified water and sodium hypochlorite, and an adjuvant mixed with the main agent, wherein the adjuvant is selected from the group consisting of benzalkonium chloride, benzethonium chloride, and chlorhexidine. A method for manufacturing sweater clothing. delete

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