KR101430751B1 - Preparing method of cotton wool using natural fiber, and cotton wool prepared thereby - Google Patents

Abstract

The present invention relates to a method of preparing a cotton wool using a natural fiber and a cotton wool prepared by the method comprising an opening step, a mixing step, a carding step, a folding step, and a punching step. Impurities are removed from a natural fiber and a synthetic fiber and then the natural fiber and the synthetic fiber are mixed with each other in the opening step. The natural fiber and the synthetic fiber experiencing the opening step are mixed to each other in spiral motion in the mixing step. The natural fiber and the synthetic fiber experiencing the mixing step are ginned to prepare a fiber sheet in the carding step. The fiber sheet is folded in a predetermined width to be continuously connected in the folding step. The fiber sheet experiencing the folding step is needle-punched in the punching step. According to the present invention, there is an effect for providing a method of preparing a cotton wool using a natural fiber and a cotton wool prepared thereby, wherein the cotton wool has high processability and shape stability as well as excellent thermokeeping and air permeability without using a low melting fiber (LMF).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of producing cotton using natural fibers, and cotton prepared from the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a cotton and a cotton fabricated therefrom, and more particularly, to a method of manufacturing cotton using natural fibers and cotton fabricated therefrom.

Generally, a cotton or quilt cotton which is inserted into bedding or clothing and used for warming purposes is made of only natural fibers extracted from cotton, wool or silk, or chemically synthesized fibers such as polyester, acrylic, vinyl chloride and polypropylene as raw materials .

Natural fibers are restricted in use and synthetic fibers are unfriendly to the human body. Therefore, it is a common practice to mix natural fibers with synthetic fibers. However, in order to make the human body more friendly and to increase sweat absorbency, it is of course necessary to increase the content of natural fibers.

Korean Patent Laid-Open Publication No. 2009-0119656 discloses an example of a cotton containing conventional natural fibers and a method for producing the same. Cotton containing such natural fibers contains natural fibers such as hemp and is lightweight, and has excellent sweat absorbency, warmth and breathability.

However, the cotton containing conventional natural fibers having such a structure is mixed with synthetic fibers to produce natural fibers such as hemp, which have low processability, in the form of cotton, mixed with LMF (Low Melting Fiber) The content of natural fibers is significantly lowered, and the use of cotton is limited due to the characteristics of low melting point fibers.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method of producing cotton using natural fibers having excellent heat retention and air permeability, And to provide a cotton which is produced from the cotton.

In order to accomplish the above object, the present invention provides a method of producing cotton using natural fibers, comprising the steps of: a step of removing impurities from natural fibers and synthetic fibers and mixing them; and a step of mixing natural fibers and synthetic fibers And a punching step of needle punching the fiber sheet having undergone the forming step. The method of manufacturing a fiber sheet according to any one of claims 1 to 3, .

In the opening step, the natural fiber is a bast fiber or a vein fiber derived from at least one selected from hemp, bamboo, and mica.

In the forming step, a sheet made of synthetic fibers containing charcoal is further included in the fiber sheet to be opened together.

In the punching step, a fabric or nonwoven fabric is poured on the lower end of the fiber sheet to be needle punched.

According to the method for producing cotton using natural fibers according to the present invention, it is possible to obtain a cotton which is excellent in warmth and air permeability and has high workability and shape stability without using LMF (low melting fiber).

FIG. 1 is a flow chart showing a method of producing cotton using natural fibers according to an embodiment of the present invention.
2 is a block diagram showing an example of an apparatus for implementing a method of manufacturing cotton using natural fibers according to an embodiment of the present invention.
FIG. 3 is a configuration diagram showing the opener in detail in FIG. 2; FIG.
4 is a block diagram showing another example of an apparatus for implementing a method of manufacturing cotton using natural fibers according to an embodiment of the present invention.
5 is a block diagram showing another example of an apparatus for implementing a method of manufacturing cotton using natural fibers according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

2 is a block diagram showing an example of an apparatus for realizing a method of manufacturing a cotton using natural fibers according to an embodiment of the present invention. FIG. 2 is a block diagram showing a method of manufacturing a cotton using natural fibers according to an embodiment of the present invention. .

As shown in the drawings, a method of manufacturing cotton using natural fibers according to an embodiment of the present invention includes an OPENING step, a MIXING step, a CARDING step, a FOLDING step, A cotton manufacturing apparatus 1000 that embodies an embodiment of the present invention includes an opener 1100, a mixing tank 1200, a carding machine 1300, a molding machine 1400, And a punching machine 1500.

In the opening step S100, impurities are removed from natural fibers and synthetic fibers and mixed. The opening step (S100) is a kind of pretreatment process for forming a cotton yarn by sifting the fibers, and it filters the short fibers or impurities that are too short in the fiber as a raw material for making the cotton and loosens the fibers and smoothly inflates them.

The raw fiber for making the cotton may be a mixture of natural fiber and synthetic fiber, which may be a bast fiber or a vein fiber derived from at least one selected from hemp, bamboo, and mulberry, The fiber separated from the epidermis and the core of the stem may be at least one selected from flax, hemp, hemp, and jute, and the flax fiber may be manila hemp or sisal hemp, It is not limited. Most preferably, it is a mine having excellent air permeability and antibacterial property.

However, it is possible to prepare cotton in the form of cotton by mixing low-melting-point fibers (LMF, Low Melting Fiber) after heat treatment and mixing synthetic fibers with hemp. However, when the LMF is mixed, the LMF itself is a synthetic fiber, so that the mixing ratio of the natural fiber is remarkably lowered, so that it is difficult to take advantage of the inherent advantages of the natural fiber, and there is a problem that the heat treatment finish is troublesome and the manufacturing cost is high. (S100) in which the vertical axis face of the fiber is formed as described later, a mixing step (S200) of mixing the fibers by the helical motion, a dipping step (S300) in which the fibers are rubbed together to form a sheet, The sheet is subjected to a forming step S400 and a punching step S500 for strengthening the structure by needle punching so as to mix natural fibers such as horses without using the LMF at a high ratio of 60 to 70% So that cotton can be produced that takes advantage of the natural fibers.

The synthetic fibers may be at least one selected from the group consisting of polyester, nylon, acrylic fiber, and polyurethane, and most preferably, It is preferably a polyester. The synthetic fibers are uniformly mixed with the natural fibers in the opening step (S100) and the mixing step (S200) to complement the natural fiber's processability and shape stability.

In the opening step S100, a plurality of rollers provided with a saw blade for loosening the fibers are usually made by a commercially available open face machine in which the rollers are horizontally arranged. However, in the case of a bundle of defective fibers, It is preferable to use the opener 1100 in which the rollers are arranged on the vertical axis in order to reduce the defective rate and improve the quality of the cotton.

Natural fibers and synthetic fibers as raw materials are passed through a roller provided with a saw blade and are loosened and mixed with each other. When passing through a roller arranged in the horizontal axis, The defect rate can be increased. In the case where the opening surface is further provided on the vertical axis before the horizontal axis, when the opening surface is formed by the saw blade of the roller while the fiber serving as the raw material rises on the roller arranged in the vertical axis, So that it is possible to reduce the defective rate of the opening treatment.

In the mixing step S200, natural fibers and synthetic fibers passed through the opening step S100 are mixed in a spiral motion. The fiber mixture of the natural fiber and the synthetic fiber in which the impurities are removed through the opening step S100 and mixed first is sucked up by the hydraulic pressure at the discharge part of the opener 1100 and is moved to the input part of the mixing tank 1200. [ At this time, the input portion of the mixing tank 1200 is located at the upper end of the mixing tank 1200, and the height of the input portion is considerable, and the transported fiber mixture is once again mixed by falling. On the other hand, if a rotating force is applied to the transporting fluid when the fiber mixture is introduced into the mixing tank 1200, the natural fibers and the synthetic fibers are injected into the mixing tank 1200 with a drop. The spiral movement including the vertical descent motion and the rotational motion can mix the natural fiber and the synthetic fiber more uniformly, and the mixing force can be improved by increasing the speed and pressure of the transport fluid.

In the carding step (S300), a natural fiber and a synthetic fiber are obtained through the mixing step (S200) to form a fiber sheet. The process of making a fiber sheet having an area from the fibers of a strand is generally called cotton. The process of making a fiber sheet by using natural fibers and synthetic fibers can be carried out using a general commercially available rug, And a carding machine 1300 provided with combs for gently brushing the fibers after they are laid. The strands of the natural fibers and the mixed fibers, which have been uniformly mixed through the mixing step (S200), are burnt into a fiber sheet having a predetermined area through the nailing step (S300). After rubbing, the fiber sheet is combed to remove impurities once again, and the fiber strands are smoothed. Especially short filaments are trimmed, which reduces the sense of roughness of the finished cotton.

The carding step 1300 may be performed in the carding machine 1300. The carding machine 1300 may include a carding drum (not shown) having a saw blade for rubbing the fiber strands, A carding roll (not shown) having a saw blade for riding the fiber strands, which is located at an upper portion of the carding drum and rotates in a direction opposite to the rotating direction of the carding drum to divide and inflate the strands of the carding drum; (Not shown).

In the folding step (S400), the fiber sheet having been subjected to the napping step (S300) is stretched to have a predetermined width and continuously formed thick and long. Since the fiber sheet subjected to the napping step (S300) has been combed after being rubbed, the tissue is relatively inconspicuous and easily scattered. Therefore, the fiber sheet made through the papermaking step (S300) is subjected to finishing such as needle punching in order to make the structure firm so as to prevent the tissue from being scattered while maintaining the weakness of the cotton. At this time, in order to produce a cotton having various thicknesses, it is preferable to go through the forming step S400 before finishing.

In the forming step S400, the thin fiber sheet continuously coming out through the napping step S300 is continuously laminated in the horizontal reciprocating motion. At this time, the fiber sheets in the stack are gradually advanced in the direction perpendicular to the reciprocating motion for stacking, so that the stacking by the reciprocating motion continues to the new stacking. The lamination thickness of the fiber sheet can be adjusted by adjusting the advancing speed. If the advancing speed is lowered, the reciprocating motion is continued almost at the same position and the lamination becomes thicker, so that a thick cotton can be produced. Since the lamination is made in a nearly new position, the thin layer can be made thin. At this time, no matter how fast the forward speed is, it is slower than the speed at which the reciprocating motion is performed once, so that the lamination can be smoothly performed without the wasted tissue being exposed.

The molding step S400 may be performed in the molding machine 1400. The molding machine 1400 may include a reciprocating machine frame (not shown) for supplying the fiber sheet from the carding machine 1300 and stacking the fiber sheets in the horizontal reciprocating motion, (Not shown) in which the fiber sheet is placed on the floor and the bottom is moved in a direction in which the reciprocating motion is perpendicular to the reciprocating direction of the cot.

On the other hand, in the forming step S400, a sheet made of synthetic fibers containing charcoal may be laminated on the fiber sheet having undergone the sadding step S300. When a fiber sheet made from a skins step S100, a mixing step S200, and a sadding step S300 is produced by using a bast fiber or a vein fiber derived from at least one selected from hemp, bamboo, and mulberry, A fibrous sheet made of a sheet made of synthetic fibers containing charcoal and a bast fiber or a vein fiber derived from at least one selected from hemp, bamboo, and mackerel The layers are laminated to form a layer capable of distinguishing colors without mixing of the tissues, and then a punching step (S500) is performed to form a thick layer of wool tissue together. Cotton made from laminated layers of synthetic fibers containing charcoal can have both the advantages of natural cotton made from hemp, bamboo, and mulberry and the advantage of synthetic cotton made from charcoal.

The sheet made of synthetic fibers containing charcoal is made from at least one selected from hemp, bamboo, and mulberry in the opening step (S100), the mixing step (S200), the napping step (S300) It can be produced by putting synthetic fibers containing charcoal in place of fibers. The synthetic fibers containing charcoal may be obtained by mixing and mixing at least one synthetic fiber selected from the group consisting of polyester, nylon, acrylic fiber, and polyurethane, . Charcoal is known to be excellent in functions such as antibacterial, detoxification, deodorization, anion increase, far-infrared radiation, electromagnetic wave shielding, humidity control, etc. Such charcoal is mixed with synthetic fibers in the form of fine powder, It is possible to provide a cotton which can be sterilized, detoxified, deodorized, anion increase, far infrared ray radiation, electromagnetic wave shielding, and humidity control by further including it in the molding step S400.

In the punching step S500, the fiber sheet having undergone the forming step S400 is needle-punched and closed. The neddle punching is performed by a stroke of the neddle in a direction perpendicular to the surface of the fiber sheet. When the needle penetrates into the fiber sheet, the needle grasps the fiber and pulls it down in the thickness direction of the fiber sheet. As a result, some of the fibers arranged in the horizontal direction are arranged in the vertical direction, so that strength is given to the fiber sheet, and the structure does not easily fall off.

On the other hand, in the punching step (S500), a fabric or a nonwoven fabric may be punched on the lower end of the fiber sheet. Needle punching is one of the commonly used finishing methods commonly used in the manufacture of nonwoven fabrics. The needle punching is performed by infiltrating the needle sheet through the up and down movement of the needle plate provided with the needle. Therefore, when the tissue is hard like a nonwoven fabric, there is less fear that the tissue will be scattered by the repetitive up and down movement of the needle plate. However, if the tissue is not as dense as the cotton, Big. In addition, a large number of punching is required for the shape stability of the finished cotton. If the number of punching is large, the binding force between the fibers increases, but it becomes hard and the cushion feeling of the finished cotton is insufficient and the natural fibers may be broken during punching. If the number of times of punching is small, punched cotton is liable to be scattered and becomes too soft, resulting in poor workability such as winding or cutting after punching.

However, when punching the fabric or the nonwoven fabric by padding the fabric or the nonwoven fabric at the lower end of the fiber sheet as in the method of producing the cotton using the natural fiber according to the present invention, the padded or nonwoven fabric is prevented from spreading, The structure of the object to be processed is not dispersed and can be processed into a well-ordered state. Therefore, it is particularly useful for winding or lamination of plates, and it is possible to use natural fibers such as hemp without relying on LMF So that it can be stably produced in the form of soft cotton.

After the punching process is completed, the padded fabric or nonwoven fabric can be easily removed from the finished padding to be easily removed. Once the punched padding has been completed, the padding can be removed when the fabric or nonwoven fabric is removed and removed There will be no disturbance of the cotton afterwards. It is of course possible to use the fabric or the nonwoven fabric in a state in which the fabric is not detached depending on the use of the cotton.

The punching step S500 can be performed in the punching machine 1500. The punching machine 1500 includes a needle (not shown) penetrating into the fiber sheet fed from the molding machine 1400 and a needle plate (Not shown). It is preferable that the needles are punched at a speed of about 400 to 600 times per minute using about 7.5 cm length needles each having about 5,000 fibers per 35 cm x 100 cm so that the fiber sheets can be sufficiently entangled. If less punching is performed, the cotton is too loose to be wound, or it is difficult to cut into a plate. If more punching is performed, the finished cotton is too hard and the cushion feeling of the cotton is reduced.

FIG. 3 is a structural view showing an opener in detail in an apparatus for fabricating a cotton using natural fibers according to an embodiment of the present invention.

2, the opener 1100 may be the opener 1100 shown in FIG. 3 (see FIG. 3). In an example of the cotton manufacturing apparatus 1000 that implements the method of manufacturing cotton using natural fibers, . The opener 1100 includes a first supply conveyor 1110, a second supply conveyor 1120, a photosensor 1130, a cylinder drum 1140, a strip roller 1150, a beater roller 1160, An instrument panel 1170, and a blower 1180.

The primary feed conveyor 1110 stacks a large amount of raw material fibers and feeds them to the secondary feed conveyor 1120.

The secondary feed conveyor 1120 controls the amount of the raw fiber material by feeding the raw material fiber conveyed from the primary feed conveyor 1110 to the cylinder drum 1140 to reduce the work load of the cylinder drum 1140, .

The photo sensor 1130 detects the amount of the raw fiber supplied through the primary feed conveyor 1110 and controls the driving of the primary feed conveyor 1110 to adjust the feed amount.

A plurality of circular rollers are vertically arranged in a cylinder drum 1140. A wire attached to the rollers sucks and rotates the raw material fibers and supplies the raw material fibers to the strip roller 1150. The rollers 1150 change the RPM of the rollers By controlling the amount of raw materials, quality products can be obtained. The cylindrical drum 1140 rotates in a direction of pulling up the raw fiber located in the secondary feed conveyor 1120 vertically upward and the raw fiber is lifted by the rake of the strip roller 1150 while riding up the cylinder drum 1140 And it is opened by long fiber. The incompletely opened raw fiber material is fed again to the strip roller 1150 by the beater roller 1160, falls down by the load, rides again on the strip roller 1150, and is opened again to prevent defective opening.

The strip roller 1150 has a plurality of circular rollers vertically arranged to rotate in a direction opposite to the rotation direction of the cylinder drum 1140. The strip rollers 1150 are adsorbed by the cylinder drum 1140 and re- And then is sucked by the blower and then transferred to the mixing tank 1200. The strip roller 1150 has a structure in which small rakes are closely embedded, thereby loosening the strands of the raw fiber to prevent the occurrence of staple fibers and to obtain long fibers, thereby improving the quality of the cotton.

The beater roller 1160 can not be conveyed to the mixing tank 1200 and re-adsorbs the rotating fibers in a state of being adsorbed on the rollers and conveys them to the strip roller 1150.

The instrument panel 1170 can be controlled by checking the pressure of the blower 1180 or the like.

The blower 1180 applies pressure to transfer the opened fibers to the mixing tank 1200.

4 and 5 are block diagrams showing another example of an apparatus for implementing the method of manufacturing cotton using natural fibers according to an embodiment of the present invention.

As shown in the figure, the cotton manufacturing apparatuses 2000 and 3000 for implementing the method of manufacturing the cotton according to the present invention include a cotton manufacturing apparatus 1000 shown in FIG. 2 as line A, line C, respectively. line A, line B, and line C are respectively supplied with different raw fibers into openers 1100, 2100, and 3100 to produce a thick cotton layered with the fibrous sheets containing different raw fibers in turn. It is of course possible to shorten the production time of the cotton composed of a single raw material by injecting the same raw fibers or to operate the line A alone to produce a cotton composed of a single raw material.

Specifically, in line A, a natural fiber, which is a bast fiber or a hemp fiber derived from at least one selected from hemp, bamboo, and mulberry, and a polyester fiber, a nylon, an acrylic fiber, A mixture of at least one synthetic fiber selected from the group consisting of polyurethane, polyester, nylon, acrylic fiber, and polyurethane, And a mixture of a powder of a fine powder form and at least one synthetic fiber selected from the group consisting of Cotton produced by cotton fabrication apparatus (2000, 3000) including line A and line B is excellent in breathability and antibacterial property since it has both the merits of hemp cotton and the advantage of charcoal cotton. The raw fiber to be introduced into each line can be freely selected from among the raw fibers described in the method for producing cotton according to the embodiment of the present invention, but is not limited thereto.

the openers 2100 and 3100 included in the line B and the line C and the mixing tanks 2200 and 3200 and the carting machines 2300 and 3300 are connected to the opener 1100 and the mixing tank 1200 described above, 1300), the detailed description thereof will be omitted.

The molding machines 2400 and 3400 of the line B and line C share the bottom of the molding machine 1400 of the line A and the bottom of the molding machine 1400 of the line A, 2300, and 3300 of the fiber cords 1300, 2300, and 3300 are received and opened by reciprocating movement so that the bottom is sequentially stacked on the same day. As shown in FIGS. 4 and 5, the laminated fiber sheet is stacked with a stack B of the line B molding machine 2400 on the laminate a of the line A molding machine 1400, The laminate (c) of the line C forming machine 3400 is piled on it to form thick cotton.

The fiber sheets stacked on line A, line B and line C are needle-punched by a punching machine 1500 to be finished with cotton. The detailed description of the punching machine 1500 has been described above and is therefore omitted.

Since the cotton using the natural fiber according to the present invention is produced by the method for producing cotton using the natural fiber according to the present invention, the cotton is excellent in air permeability, warmth and antimicrobial property, and can be obtained by using 60 to 70% And the method for producing cotton using the natural fibers according to the present invention has been described in detail so that a detailed description thereof will be omitted.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

1000, 2000, 3000: Cotton manufacturing equipment
1100, 2100, 3100: Opener
1110: Primary feed conveyor
1120: Secondary feed conveyor
1130: Photoelectric sensor
1140: Cylinder drum
1150: strip roller
1160: Beater roller
1170: Instrument cluster
1180: blower
1200, 2200, 3200: mixing tank
1300, 2300, 3300: carding machine
1400, 2400, 3400: Molding machine
1500: Punching machine

Claims (5)

An opening step of removing and mixing impurities from the natural fiber and the synthetic fiber,
A mixing step of mixing the natural fiber and the synthetic fiber through the opening step by spiral movement,
A dipping step of dipping the natural fiber and the synthetic fiber through the mixing step to form a fiber sheet,
A forming step of continuously forming the fiber sheet with a predetermined width,
And a punching step of needle punching the fiber sheet through the forming step. The method according to claim 1,
In the opening step,
Wherein the natural fiber is a bast / leaf fiber derived from at least one selected from hemp, bamboo, and mulberry. The method according to claim 1,
In the molding step,
Characterized in that a sheet made of synthetic fibers containing charcoal is additionally contained in the fiber sheet and is wound together. The method according to claim 1,
In the punching step,
Characterized in that a fabric or a nonwoven fabric is poured on the lower end of the fiber sheet to be needle punched. A cotton using natural fibers, which is produced by a method of producing cotton using the natural fiber according to any one of claims 1 to 4.

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