KR102507713B1 - method of manufacturing wool composite yarn for shoe upper with excellent antibacterial/deodorizing performance - Google Patents

Abstract

A method for manufacturing wool composite spun yarn for a shoe upper having excellent antibacterial/deodorizing function according to the present invention comprises the steps of: manufacturing a conductive acrylic fiber top and a wool fiber top; mixing the conductive acrylic fiber top and the wool fiber top to manufacture a blended sliver; and manufacturing composite spun yarn with the blended sliver. In this case, the conductive acrylic fiber may be acrylic fiber to which 2 to 5 w% of copper ions are bound, and the composite spun yarn may contain 2 to 10 w% of the conductive acrylic fiber.

Description

Method of manufacturing wool composite yarn for shoe upper with excellent antibacterial/deodorizing performance}

The present invention relates to a method for manufacturing wool composite spun yarn for shoe uppers, and more particularly, to a method for manufacturing wool composite spun yarn having excellent antibacterial/deodorizing function by mixing wool spun yarn with copper ion-bonded acrylic fiber.

Shoes for protecting a person's feet are typically configured by combining a string or Velcro with a basic structure in which an upper covering an instep is attached to a bottom portion where a sole and a midsole are combined. Among them, the upper part plays an important role in determining the wearing comfort of the shoe.

In general, the upper of a shoe is often made of a leather material including natural leather or artificial leather or an artificial material such as nylon. The upper made of leather is difficult to process, is heavy, and has disadvantages in that it compresses the toe or instep, resulting in poor wearing comfort and low air permeability. In addition, in the case of the upper of artificial fabric, it is easy to process and light, but has disadvantages such as low moisture absorption, air permeability, and low heat retention due to the characteristics of artificial fiber.

In order to solve the above-mentioned disadvantages of shoe uppers, wool fiber is light in weight and has excellent heat retention and air permeability, including many pores, helping to maintain the temperature of the feet in winter and having the advantage of smooth sweat discharge from the feet in summer A technique for manufacturing uppers of shoes by knitting has been developed.

However, wool fabric is expensive, difficult to process, and has low strength, and there is no choice but to block the occurrence of mold or bacteria and remove odors only with the antibacterial/deodorizing function of the wool fabric itself.

Korean Patent Registration No. 10-2288021 (2021.08.09)

Therefore, the technical problem to be solved by the present invention is to provide excellent warmth, air permeability, and wearing comfort by including wool fibers, and in addition to the basic antibacterial / deodorizing function of wool fibers including copper-bonded synthetic fibers, antibacterial / deodorizing / It is to provide a method for manufacturing a wool composite spun yarn for shoe uppers having excellent durability while maximizing deodorization function.

The technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

The method for manufacturing wool composite spun yarn for shoe uppers having excellent antibacterial/deodorizing function according to the present invention includes the steps of manufacturing a conductive acrylic fiber top and a wool fiber top; mixing the conductive acrylic fiber top and the wool fiber top to produce a blended sliver; and manufacturing composite spun yarn from the blended sliver.

The conductive acrylic fiber is an acrylic fiber to which 2w% to 5w% of copper ions are bound, and the composite spun yarn may contain 2w% to 10w% of the conductive acrylic fiber.

In the carding process for manufacturing the conductive acrylic fiber top, carding oil is not used, and the distance between the cylinder and the doffer is set larger than the distance between the cylinder and the doffer for carding of general acrylic fibers. It is desirable to do

The composite spun yarn manufacturing apparatus may include a first cut detection sensor having a first optical path traversing a lower space of a plurality of moving paths through which a plurality of blended slivers pass. At this time, in the method for manufacturing wool composite spun yarn for shoe uppers with excellent antibacterial/deodorizing function, the open first optical path is cut among the plurality of blended slivers and the blended sliver falls across the first optical path The method may further include stopping an operation of the manufacturing apparatus when the burr is momentarily blocked.

The composite spun yarn manufacturing apparatus may include a second cut detection sensor having a second optical path traversing the moving path of the blended sliver passing through the roller. At this time, in the method for manufacturing wool composite spun yarn for shoe uppers with excellent antibacterial/deodorizing function, when the second optical path blocked by the blended sliver is opened by cutting the blended sliver, the operation of the manufacturing device A step of stopping the may be further included.

Since the wool composite spun yarn prepared according to the present invention for solving the above technical problem contains wool fibers, it is possible to manufacture a shoe upper basically having excellent heat retention, breathability, and comfort.

In addition, the wool composite spun yarn prepared according to the present invention contains copper-bonded synthetic fibers, and when this is used, it provides a much better antibacterial / deodorant function than the basic antibacterial / deodorant function of wool fiber, while providing excellent durability. , it is possible to manufacture a shoe upper that can also provide an antistatic effect.

1 is a block diagram of a shoe 100 manufactured by applying the present invention.
2 is a flow chart showing an example of a method for manufacturing wool composite spun yarn for shoe uppers having excellent antibacterial/deodorizing function according to the present invention.
Figure 3 is a photograph of the conductive acrylic fiber before and after the conductive treatment used in the manufacturing step of the conductive acrylic fiber top of Figure 2.
FIG. 4 is a conceptual diagram for comparing a carding process performed for conductive acrylic fibers in the step of manufacturing an acrylic fiber saw in FIG. 2 with a carding process for general acrylic fibers.
5 is a configuration diagram showing a part of the wool composite spun yarn manufacturing apparatus 100 according to the present invention.
6 is a conceptual diagram for explaining the principle of sensing the cutting of the blended sliver in the wool composite spun yarn manufacturing apparatus 100 shown in FIG.
7 is a photograph showing an example in which the wool composite spun yarn manufacturing apparatus 100 shown in FIG. 5 is actually implemented.
8 is a configuration diagram showing a part of a wool composite spun yarn manufacturing apparatus 100 'according to the present invention.
FIG. 9 is a conceptual diagram for explaining the principle of sensing the cutting of blended slivers in the wool composite spun yarn manufacturing apparatus 100' shown in FIG. 8 .
10 is a photograph showing an example in which the wool composite spun yarn manufacturing apparatus 100 'shown in FIG. 8 is actually implemented.
11 is an enlarged photograph of a cross section of a wool composite spun yarn manufactured according to the present invention.
12a to 12c are antibacterial test reports of knitted fabrics prepared for shoe uppers using the wool composite spun yarn shown in FIG. 11.
13 is a deodorization test report of a knitted fabric manufactured for shoe uppers using the wool composite spun yarn shown in FIG. 11.

In order to fully understand the present invention, its operational or functional advantages, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in more detail. Since the present invention can have various changes and various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, it should be understood that this is not intended to limit the present invention to the specific disclosed form, and includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Like reference numerals have been used for like elements throughout the description of each figure. In the accompanying drawings, the dimensions of the structures may be enlarged or reduced than the actual size for clarity of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used 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, without departing from the scope of the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "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 it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention 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 this application, it should not be interpreted in an ideal or excessively formal meaning. don't

1 is a block diagram of a shoe 100 manufactured by applying the present invention. Shoes 100 are worn to protect feet, and are composed of a sole 110, an upper 120, a tongue 130, a shoelace 140, and the like. The outsole 110 is a part of the sole of the shoe 100 that touches the floor, and leather, synthetic rubber, plastic, urethane synthetic resin, or the like is used.

The upper 120 is attached to the sole 110 of the shoe 100, and a space is formed on the inside to accommodate the foot. Upper 120 is formed with a plurality of lace holes into which shoe laces 140 can be inserted. Tongue 130 is to protect the instep or prevent bites, and is a tongue-shaped part. Laces 140 allow the upper 14 to be tightened or loosened.

The present invention relates to a method for manufacturing the wool composite spun yarn constituting the upper 120 fabric. It has excellent wearing comfort and has excellent antibacterial/deodorant functions as it contains conductive acrylic fiber combined with copper, can prevent static electricity, and can provide excellent durability.

2 is a flow chart showing an example of a method for manufacturing wool composite spun yarn for shoe uppers having excellent antibacterial/deodorizing function according to the present invention.

The wool composite spun yarn manufacturing method includes a step of manufacturing a conductive acrylic fiber top and a wool fiber top (S100), a step of mixing the conductive acrylic fiber top and the wool fiber top to produce a blended sliver (S110), and the blended sliver and manufacturing a composite spun yarn using (S120).

The manufacturing of the conductive acrylic fiber saw may include preparing a conductive acrylic fiber by subjecting acrylic fiber to conductive treatment, and manufacturing a saw by carding the conductive acrylic fiber.

The step of preparing the conductive acrylic fiber may include binding copper ions to the acrylic fiber through a reduction method using a reducing agent, a complexing agent, an adjusting agent, or the like. At this time, it is preferable that the conductive acrylic fiber is bound to 2w% to 5w% of copper ions. If the copper ion is less than 2w%, the antibacterial/deodorant function may be inferior to copper, and if the copper ion exceeds 5w%, it is advantageous to achieve the target antibacterial/deodorant performance, but the cost increases and processing (ex: copper ion bonding process, This is because problems in which the spinning process, etc.) become difficult may occur.

Figure 3 is a photograph of the conductive acrylic fiber before and after the conductive treatment used in the manufacturing step of the conductive acrylic fiber top of Figure 2.

Referring to FIG. 3, the acrylic fiber bundle before copper ions are combined is close to pale yellowish white (FIG. 3 (a)), but the acrylic fiber bundle to which copper ions are combined and given conductivity has a copper light It can be seen that the color is changed to take on (Fig. 3 (b)).

Referring back to FIG. 2 , when carding the conductive acrylic fiber in the manufacturing step of the conductive acrylic fiber saw, it is preferable not to use carding oil, unlike carding of general acrylic fiber to which conductivity is not imparted. This is to prevent deterioration of the conductivity of the conductive acrylic fiber by minimizing a change in physical properties of the conductive acrylic fiber due to carding oil, and to block a chemical deterioration factor for the conductivity of the conductive acrylic fiber.

In the case of carding the conductive acrylic fiber, it is preferable to make the distance between the cylinder and the doffer farther than in the case of carding the general acrylic fiber. This is to reduce the degree of deterioration of the conductivity of the conductive acrylic fiber by the physical force applied during carding by increasing the distance between the doffer and the cylinder, and to reduce the physical deterioration factor for the conductivity of the conductive acrylic fiber.

FIG. 4 is a conceptual diagram for comparing a carding process performed for conductive acrylic fibers in the step of manufacturing an acrylic fiber saw in FIG. 2 with a carding process for general acrylic fibers.

Referring to FIG. 4 , it can be seen that carding oil is used when carding general acrylic fibers, but carding oil is not used when carding conductive acrylic fibers. In addition, the thickness (T2) of the gauge (G2) used when carding the conductive acrylic fiber is higher than the thickness (T1) of the gauge (G1) used to set the distance between the cylinder and the doffer when carding the general acrylic fiber. You can see it's thicker.

As such, in the present invention, the chemical/physical deterioration factor for the conductivity of the conductive acrylic fiber (ie, the chemical/physical factor that can weaken the bonding force of copper ions bound to the acrylic fiber) is removed, and the composite spun yarn to be manufactured in the future Antibacterial/deodorizing functions can be weakened in advance. This difference can also be applied to carding of conductive acrylic fibers and carding of wool fibers.

Referring back to FIG. 2 , when the conductive acrylic fiber top and the wool fiber top are prepared, they are mixed to prepare a blended sliver (S110), and a composite spun yarn is manufactured using the blended sliver (S120). The composite spun yarn manufacturing step (S120) may include a step of manufacturing a wool composite spun yarn by plying and twisting a single yarn in which a conductive acrylic fiber and a wool fiber are blended.

In the wool composite spun yarn, the conductive acrylic fiber preferably accounts for 2w% to 10w%. The wool spun yarn also has a basic antibacterial / deodorizing function, but if the conductive acrylic fiber is less than 2w%, the target antibacterial / deodorizing function may not be guaranteed. In the wool composite spun yarn, the conductive acrylic fiber is at least 2% It is preferable to include more than one.

In addition, when the conductive acrylic fiber exceeds 10w% in the wool composite spun yarn, it is advantageous to achieve the target antibacterial / deodorizing performance, but there is a problem in that economic feasibility is lowered due to cost increase, so in the wool composite spun yarn, the conductive acrylic fiber is 10w It is preferably included in % or less.

On the other hand, since the wool composite spun yarn manufacturing method according to the present invention uses a conductive acrylic fiber in which copper ions are bonded to acrylic fiber, there is a problem in that a method of electrically detecting whether or not the sliver is cut in the spinning yarn manufacturing process cannot be utilized. Therefore, in the present invention, a photoelectric sensing method for optically detecting whether or not the sliver is cut is used. Hereinafter, examples of the photoelectric sensing method applied to the present invention will be described with reference to FIGS. 5 to 10 .

5 is a configuration diagram showing a part of the wool composite spun yarn manufacturing apparatus 100 according to the present invention. 6 is a conceptual diagram for explaining the principle of sensing the cutting of the blended sliver in the wool composite spun yarn manufacturing apparatus 100 shown in FIG. 7 is a photograph showing an example in which the wool composite spun yarn manufacturing apparatus 100 shown in FIG. 5 is actually implemented.

The wool composite spun yarn manufacturing apparatus 100 may optically sense whether there is a mixed yarn sliver being cut among the plurality of mixed yarn slivers 120 . The blended slivers 120 are manufactured by mixing wool fibers and conductive acrylic fibers. The wool composite spun yarn manufacturing apparatus 100 includes a guiding roller 110 and first cut detection sensors 200 and 300.

The guiding roller 110 may guide the paths of the plurality of blended slivers 120 . The plurality of blended slivers 120 pass through the guiding roller 110 and move while each forming a moving path.

The first cut detection sensors 200 and 300 have a first light path (POL1) that crosses the lower space (S) of the plurality of moving paths of the plurality of blended slivers (120). The first light path POL1 is formed by receiving light generated from the light emitting unit 200 at the light receiving unit 300 .

When any one of the plurality of blended slivers 120 is cut in the normal state in which the first optical path POL1 is open (FIG. 6(a)), the cut blended sliver 120b is affected by gravity While falling, the first optical path POL1 is momentarily blocked (FIG. 6(b)). Then, the wool composite spun yarn manufacturing apparatus 100 stops the operation.

As described above with reference to FIGS. 5 to 7 , the wool blended yarn manufacturing apparatus 100 determines whether a plurality of blended slivers containing conductive acrylic fibers are cut through one first cutting detection sensor 200 and 300. can be effectively monitored

8 is a configuration diagram showing a part of a wool composite spun yarn manufacturing apparatus 100 'according to the present invention. FIG. 9 is a conceptual diagram for explaining the principle of sensing the cutting of blended slivers in the wool composite spun yarn manufacturing apparatus 100' shown in FIG. 8 . 10 is a photograph showing an example in which the wool composite spun yarn manufacturing apparatus 100 'shown in FIG. 8 is actually implemented.

The wool composite spun yarn manufacturing apparatus 100 ′ may optically sense whether the blended sliver 120 is cut. The wool composite spun yarn manufacturing apparatus 100 includes a roller 130 and second cut detection sensors 400 and 500.

The blended sliver 120 passes through the roller 110. The second cut detection sensors 400 and 500 have a second optical path POL2 crossing the moving path of the blended sliver 120 . The second optical path POL2 is formed by receiving light generated from the light emitting unit 400 at the light receiving unit 500 .

When the mixed sliver 120 is cut in a normal state in which the second optical path POL2 is blocked, the cut sliver 120b falls by gravity and the second optical path POL2 is opened. (See Fig. 7). Then, the wool composite spun yarn manufacturing apparatus 100 stops the operation.

As described above with reference to FIGS. 8 to 10, the wool composite spun yarn manufacturing apparatus 100 'is a second cut detection sensor installed on each of several rollers to determine whether the blended sliver containing the conductive acrylic fiber is cut. 400 and 500) can be efficiently monitored.

11 is an enlarged photograph of a cross section of a wool composite spun yarn manufactured according to the present invention. 12a to 12c are antibacterial test reports of knitted fabrics prepared for shoe uppers using the wool composite spun yarn shown in FIG. 11, and FIG. 13 is a knitted fabric prepared for shoe uppers using the wool composite spun yarn shown in FIG. deodorant test report.

The wool composite spun yarn was manufactured with 2 sets of 30 counts, and wool fibers accounted for 98w% and conductive acrylic fibers accounted for 2w%. In FIG. 11, white fibers represent conductive acrylic fibers and black fibers represent wool fibers. On the other hand, 2w% of copper ions are bound to the conductive acrylic fiber.

Referring to Figures 12a to 12c, it can be seen that the antibacterial test (KS K 0693: 2016) on the knitted fabric made of the wool composite spun yarn according to the present invention has an excellent antibacterial effect of 99.9%. And referring to FIG. 13, it can be seen that the antibacterial test (FITI Test Guideline FTM-5-2: 2004) on the knitted fabric made of the wool composite spun yarn according to the present invention has an excellent ammonia deodorizing effect of 99.4%.

Meanwhile, according to the present invention described above, a wool composite spun yarn was prepared by mixing wool fibers and conductive acrylic fibers. However, in other embodiments of the present invention, polyester fibers and the like may be further blended and utilized.

At this time, the polyester fiber or the like may be made of a separate spun yarn or made of a conductive acrylic fiber and a mixed spun yarn, and then used for manufacturing wool composite spun yarn. However, in order to secure the antibacterial/deodorizing function, it is preferable that the wool composite spun yarn thus prepared also contains at least 2w% of the conductive acrylic spun yarn.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited to the above embodiments, and those skilled in the art in the field to which the present invention belongs can make various modifications and variations from these descriptions. this is possible

Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, and should be defined by not only the claims to be described later, but also those equivalent to these claims.

100, 100': wool composite spun yarn manufacturing device 110: guiding roller
120: blended sliver 130: roller
200: light emitting unit 300: light receiving unit
400: light emitting unit 500: light receiving unit
POL1, POL2: light path S: space under the sliver

Claims (4)

manufacturing a conductive acrylic fiber top and a wool fiber top; mixing the conductive acrylic fiber top and the wool fiber top to produce a blended sliver; And manufacturing a composite spun yarn from the blended sliver,
The conductive acrylic fiber,
It is an acrylic fiber to which 2w% to 5w% of copper ions are bound,
In the composite spun yarn,
Characterized in that the conductive acrylic fiber is contained in 2w% to 10w%,
In the carding process for manufacturing the conductive acrylic fiber saw,
No carding oil is used.
The distance between the cylinder and the doffer,
A method for manufacturing wool composite spun yarn for shoe uppers with excellent antibacterial/deodorizing function, characterized in that the distance between the cylinder and the doffer for carding of general acrylic fibers is set farther.
delete According to claim 1,
The manufacturing device of the composite spun yarn,
A first cut detection sensor having a first optical path traversing the lower space of the plurality of moving paths through which the plurality of blended slivers pass,
The method for manufacturing wool composite spun yarn for shoe uppers having excellent antibacterial/deodorizing function,
When the open first optical path is momentarily blocked by a mixed sliver that is cut among the plurality of mixed slivers and falls across the first optical path, stopping the operation of the manufacturing device A method for manufacturing wool composite spun yarn for shoe uppers having excellent antibacterial/deodorizing function, characterized in that it further comprises.
According to claim 3,
The manufacturing device of the composite spun yarn,
a second cut detection sensor having a second optical path traversing the travel path of the blended sliver through the roller;
The method for manufacturing wool composite spun yarn for shoe uppers having excellent antibacterial/deodorizing function,
When the second optical path blocked by the mixed sliver is opened by cutting the mixed sliver, further comprising the step of stopping the operation of the manufacturing device, characterized in that it has excellent antibacterial / deodorizing function Method for manufacturing wool composite spun yarn for shoe uppers.

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