KR101602931B1 - cotton and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a method of manufacturing a cotton including an opening step, a mixing step, a nipping step, a spraying step, a molding step, and a punching step, and a cotton fabricated therefrom.
In the opening step, the impurities are removed from the raw fiber. In the mixing step, raw fibers after the opening step are mixed in a spiral motion. In the noodle step, the fiber sheet is formed by mixing the raw fiber material after the mixing step. In the spraying step, the functional additive is sprayed onto the fiber sheet having undergone the dipping step. In the forming step, the fiber sheet is continuously wound with a predetermined width. In the punching step, the fiber sheet subjected to the forming step is needle-punched.
According to the present invention, it is possible to provide cotton which is excellent in warmth and shape stability and is easy to use and highly utilizable. In addition, according to the present invention, it is possible to prevent the microcapsules of the functional additive injected inside the cotton from escaping to the outside of the cotton, thereby providing a cotton which is maintained for a long time.

Description

Cotton and manufacturing method thereof < RTI ID = 0.0 >

TECHNICAL FIELD The present invention relates to a method of producing cotton and a cotton produced therefrom, and more particularly to a cotton having excellent shape stability and a method for producing the same.

In general, cotton or quilt cotton which is inserted into bedding or clothing and used for thermal insulation is made of natural fibers extracted from cotton, wool or silk, or chemically synthesized fibers such as polyester, acrylic, vinyl chloride and polypropylene as raw fibers And further additives are added to add antimicrobial or directional functionality.

Korean Patent Registration No. 1079871 shows an example of a conventional cotton manufacturing method. As described, in the conventional cotton manufacturing method, the prepared cotton is immersed in a functional solution, and then the cotton is imparted with functionality by stirring, dehydrating and drying.

However, in the conventional cotton manufacturing method, not only the warmth and softness of the cotton main body are lowered by immersion but also the cotton tissue is loosened by washing or the like can not be prevented. Accordingly, the functional ingredients penetrated by the cotton tend to be lost to the outside of the cotton, so that the functionality of the cotton is difficult to maintain for a long period of time, resulting in poor utilization.

Accordingly, it is required to develop a method of manufacturing a cotton which is excellent in the form stability of the cotton while retaining the softness of the cotton, and is utilized in various aspects.

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 it is an object of the present invention to provide a method for producing cotton which is excellent in thermal insulation, .

It is an object of the present invention to provide a cotton which retains long-lasting functionality by preventing the microcapsules of the functional additive injected into the cotton from escaping to the outside of the cotton.

In order to accomplish the above object, a method of manufacturing a cotton according to the present invention includes an opening step, a mixing step, a napping step, a spraying step, a molding step, and a punching step.

In the opening step, the impurities are removed from the raw fiber.

In the mixing step, raw fibers after the opening step are mixed in a spiral motion.

In the noodle step, the fiber sheet is formed by mixing the raw fiber material after the mixing step.

In the spraying step, the functional additive is sprayed onto the fiber sheet having undergone the dipping step. The functional additive may be a mixture of microcapsules containing linseed oil or cinnamon oil in a liquid binder.

In the forming step, the fiber sheet is continuously wound with a predetermined width. The forming step may include a first laminating step, a second laminating step, a third laminating step, and a heating step.

In the first lamination step, a fiber sheet including polyester and LMF (low melting fiber) can be laminated.

In the second lamination step, a fiber sheet including polyester may be laminated on the fiber sheet having undergone the first lamination step.

In the third laminating step, the polyester sheet and the LMF-containing fiber sheet can be laminated on the fiber sheet having undergone the second laminating step.

In the heating step, the fiber sheet after the third lamination step can be heated. The heating step may be to heat the surface of the fiber sheet through the third lamination step and dry the inside of the fiber sheet.

In the punching step, the fiber sheet having undergone the forming step is needle punched.

According to the method for producing cotton according to the present invention, it is possible to provide a cotton which is excellent in warmth and shape stability and is highly utilized in various aspects.

According to the method of producing cotton according to the present invention, it is possible to prevent the microcapsules of the functional additive injected inside the cotton from escaping to the outside of the cotton, thereby providing a cotton which is maintained for a long time.

1 is a flowchart showing a method of manufacturing a cotton according to an embodiment of the present invention.
2 is a view showing an apparatus for implementing a method of manufacturing cotton according to an embodiment of the present invention.
FIG. 3 is a view showing the opener in detail in FIG. 2. FIG.
Fig. 4 is a flowchart showing the molding step in detail in Fig. 1. Fig.
Fig. 5 is a view showing the heater in detail in Fig. 2. Fig.

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.

FIG. 1 is a flow chart showing a method of manufacturing a cotton according to an embodiment of the present invention, and FIG. 2 is a view showing an example of an apparatus for implementing a method of manufacturing cotton according to an embodiment of the present invention.

As shown in the figure, the method of manufacturing the cotton according to the embodiment of the present invention includes the opening step S100, the mixing step S200, the siding step S300, the injection step S430, the molding step S400, 1210 and 1410, mixing tanks 1120, 1220 and 1420, and a punching step (S500). The cotton manufacturing apparatus 1000 embodying the method of manufacturing the cotton according to the embodiment of the present invention includes the openers 1110, Three production lines 1100, 1200, and 1400 each including cartridges 1130, 1230 and 1430, an injector 1300 and a molding machine 1140, 1240 and 1440, a heater 1500, a puncher 1600 ).

In the opening step (S100), impurities are removed from the raw fibers and gently released. 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 fibers for making the cotton may be natural fibers or synthetic fibers. The natural fiber may be at least one selected from the group consisting of cotton, hemp, wool, and silk, and most preferably is a cotton which is excellent in hygroscopicity and is easy to care such as washing. The synthetic fiber may be at least one selected from the group consisting of polyester, nylon, acrylic fiber and polyurethane, and most preferably, at least one selected from the group consisting of poly Ester.

In the opening step S100, the different production fibers 1100, 1200, and 1400 may be divided into the production lines 1100, 1200, and 1400 so that the different production fibers 1100, Can be easily manufactured. In the opening step S100, a low melting fiber (LMF) may be further added for the shape stability of the finished cotton. The LMF may be added to the production lines 1100, 1200, and 1400, It is of course possible to control the LMF distribution. It is preferred that the LMF added is comprised between 15 and 30 wt% of the finished cotton. When LMF is contained in an amount of less than 15% by weight, the effect of shape stability by LMF may be insignificant, and when LMF is contained in an amount exceeding 30% by weight, the cotton may become hard, which is not preferable.

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 openers 1110, 1210 and 1410 having rollers arranged on the vertical axis in order to reduce the defect rate and improve the quality of the cotton.

In the openers 1110, 1210, and 1410, the raw fiber passes through a roller provided with a saw blade, and is loosened and mixed. At this time, when passing through the rollers arranged on the horizontal axis, the untrimmed fibers can not be prevented from being fed directly to the next process, so that the defective rate can be increased. In the case where the front face is formed in the vertical axis before the horizontal axis, the fiber serving as the raw material rises on the roller arranged in the vertical axis, and the face is opened by the saw blade of the roller. At this time, the fiber having a poor opening state and having a heavy weight can not reach the roller in the vertical axis, falls down in the middle, and passes again through the roller, thereby reducing the defective rate of the opening treatment.

3 is a view showing the opener 1110 in detail in an apparatus for implementing a method of manufacturing cotton according to an embodiment of the present invention.

As shown in the figure, the opener 1110 includes a first supply conveyor 1111, a second supply conveyor 1112, a photosensor 1113, a cylinder drum 1114, a strip roller 1115, A roller 1116, an instrument panel 1117, and a blower 1118.

The primary feed conveyor 1111 laminates a large amount of raw material fibers and feeds them to the secondary feed conveyor 1112.

The secondary feed conveyor 1112 adjusts the amount of the raw fiber material while feeding the raw fiber conveyed from the primary feed conveyor 1111 to the cylinder drum 1114 to reduce the work load of the cylinder drum 1114, .

The photo sensor 1113 detects the amount of the raw fiber supplied through the primary feed conveyor 1111 and controls the driving of the primary feed conveyor 1111 to adjust the feed amount.

The cylinder drum 1114 has a plurality of circular rollers arranged vertically. A wire is attached to the roller, and the raw fiber is sucked and rotated, and supplied to the strip roller 1115. By changing the RPM of the roller, the quality of the product can be obtained by controlling the amount of the raw material supplied. The cylinder drum 1114 rotates in the direction of pulling up the raw fiber located in the secondary supply conveyor 1112 vertically upward.

The raw material fibers are loosened by the rake of the strip roller 1115 while riding on the cylinder drum 1114, The incompletely opened raw fiber material is fed again to the strip roller 1115 by the beater roller 1116, falls by the load, rides again on the strip roller 1115, and is opened again. Thus, defective opening can be prevented.

A strip roller 1115 is vertically disposed with a plurality of circular rollers rotating in a direction opposite to the rotating direction of the cylinder drum 1114. [ The material fibers sucked and supplied from the cylinder drum 1114 are adsorbed by the strip roller 1115 again. The re-adsorbed raw fibers are sucked by the blower and then conveyed to the mixing tank 1120. The strip roller 1115 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 1116 can not be conveyed to the mixing tank 1120 and re-adsorbs the rotating fibers in a state of being adsorbed on the rollers and transports them to the strip roller 1115.

The instrument panel 1117 can be controlled by checking the pressure of the blower 1118 or the like.

The blower 1118 applies pressure to deliver the opened fibers to the mixing tank 1120.

The openers 1210 and 1410 included in the line B and line C in the example of the cotton manufacturing apparatus 1000 that implements the method of manufacturing the cotton according to the embodiment of the present invention include the opener 1110 described above, Are the same.

In the mixing step S200, the raw fiber material after the opening step S100 is mixed with the spiral motion. The fiber mixture in which the impurities are removed through the opening step S100 and primarily mixed is sucked up by the hydraulic pressure from the discharge part of the openers 1110, 1210 and 1410 to move to the charging part of the mixing tanks 1120, 1220 and 1420 do. At this time, the input portions of the mixing tanks 1120, 1220, and 1420 are located at the upper ends of the mixing tanks 1120, 1220, and 1420, and the height thereof becomes significant. . When the fiber mixture is introduced into the mixing tanks 1120, 1220 and 1420, the fiber mixture is injected into the mixing tanks 1120, 1220 and 1420 in a descending order . By the helical motion including vertical descent motion and rotational motion, fiber mixing can be made more uniform, and the mixing force can be improved by increasing the speed and pressure of the transport fluid.

In the carding step (S300), a fiber sheet is formed by applying raw fiber material after the mixing step (S200). The napping process of making a fiber sheet having an area from the fibers of the strand is usually said to be cotton. The napping process of making the fiber sheet by taking the raw fibers can be performed by using a general commercially available rug, and most preferably, 1230, and 1430 provided with combs that gently comb the fibers.

The strands of the raw fiber having been uniformly mixed through the mixing step (S200) are burnt with 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 nesting step S300 may be performed in the carting machines 1130, 1230, and 1430. The carding machines 1130, 1230, and 1430 include a carding drum (not shown) having a saw blade for rubbing the fiber strands and performing rotational movement to divide and inflate the strands, and a saw blade for rubbing the fiber strands, A carding roll (not shown) 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 fiber strands, and a comb (not shown)

In the spraying step S430, the functional additive may be sprayed onto the fiber sheet after the step S300. The functional additive may be a mixture of microcapsules containing linseed oil or cinnamon oil in a liquid binder.

Cottonwood is known to have the effects of improving atopy and skin troubles, increasing immunity, inhibiting mites through antibacterial effects, and the amount of phytoncide produced is superior to that of pine and pine trees, and cinnamon oil has a mite suppressing effect. When the leaves of the filamentous trees are heated in water, the filamentous tree oil floats on the water, and when separated from the water, the filamentous oil can be obtained.

The microcapsules prepared by mixing 100 parts by weight of the silica particles absorbed with the untransformed tree oil and 1 to 10 parts by weight of the silica particles absorbed with the cinnamon oil are sprayed onto the fiber sheet after the second lamination step (S420) To allow phytoncide to diffuse, and to prevent ticks.

The microcapsules may be injected in the form of a functional additive having antimicrobial and directional functions by mixing with a liquid binder so that the microcapsules can act as a sticky adhesive. Make sure you stick to the corner. It is preferable to use natural binders such as alginic acid, rosin, and rosin because the liquid binder is eco-friendly.

The injection step S430 may be performed in the injector 1300. The injection step S430 may prevent the functional additive from escaping from the cotton through the carding machine 1130, 1230, 1430 as it injects the functional additive into the cotton after the napping step S300. Also, as the functional additive is sprayed before the molding step (S400), the functional additive can be uniformly dispersed into the inside of the thickly laminated cotton while the molding step (S400) is performed. More specifically, the injector 1300 is disposed prior to the formers 1140, 1240 and 1440, so that the fiber sheets of the next fabrication line can be stacked over the functional additive injected by the injector 1300. Accordingly, the functional additive is mainly located inside the cotton, and the functional additive can be prevented from being lost to the outside of the cotton to deteriorate the functionality.

2, the injection step S430 is shown to be performed in both the A production line 1100, the B production line 1200, and the C production line 1400. However, the present invention is not limited thereto, The step S430 may be performed in at least one of the A production line 1100, the B production line 1200, and the C production line 1400. [

In the folding step S400, the fiber sheet having been subjected to the jetting step S430 is stretched in 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 injection step S430 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 this advancing speed. When the advancing speed is decreased, the reciprocating motion is continued almost at the same position, and the thick layer is thickened, so that a thick cotton can be manufactured. If the advancing speed is increased, the reciprocating motion is continued almost at the new position so that the thin layer is thin, . At this time, no matter how fast the advancing 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 space of the cotton yarn being exposed.

The forming step S400 may be performed in the molding machines 1140, 1240 and 1440. In the molding machines 1140, 1240 and 1440, the fiber sheets are laminated and molded in the form of thick cotton. The molding machines 1140, 1240 and 1440 are provided with a reciprocating machine frame (not shown) for receiving the fiber sheets from the cartridges 1130, 1230 and 1430 and laminating the fiber sheets in a horizontal reciprocating motion, (Not shown) in which the bottom is moved in a direction in which the reciprocating motion is perpendicular to the reciprocating direction of the synchromesh.

4 is a flowchart showing the molding step (S400) in detail in the method of manufacturing a cotton according to an embodiment of the present invention.

As shown in the drawing, in the method of manufacturing the cotton according to the embodiment of the present invention, the forming step S400 includes a first laminating step S410, a second laminating step S420, a third laminating step S440, , And a heating step (S450).

In the first laminating step (S410), a fiber sheet including polyester and LMF (low melting fiber) may be laminated. The first laminating step (S410) continues to laminate the thin fiber sheet continuously coming out through the napping step (S300) in a horizontal reciprocating motion. At this time, the fiber sheet being laminated is gradually advanced in the direction perpendicular to the reciprocating motion for stacking. Thus, the lamination by the reciprocating motion can continuously lead to a new lamination. The lamination thickness of the fiber sheet can be adjusted by adjusting this advancing speed. If the advancing speed is decreased, the reciprocating motion is continuously performed at almost the same position, so that the lamination becomes thick, so that a thick cotton can be manufactured. As the advancing speed is increased, the reciprocating motion is continued at almost the new position and the lamination becomes thinner, so that a thin cotton can be produced.

The first laminating step S410 may be performed by the molding machine 1140 of the A manufacturing line 1100 and the molding machine 1140 may be carried out from the carder 1130 or the injector 1300 of the A- (Not shown) for reciprocating a fiber sheet in a horizontal reciprocating motion with a sheet fed thereto, a fiber sheet on which a laminated fiber sheet is placed on the floor, and a bottom on which a bottom is moved in a direction perpendicular to the reciprocating direction of the reciprocating motion Time).

In the second laminating step (S420), a fiber sheet including polyester may be laminated on the fiber sheet having undergone the first laminating step (S410). The second laminating step (S410) continues to laminate the thin fiber sheet continuously coming out through the napping step (S300) in a horizontal reciprocating motion on the fiber sheet after the first laminating step (S410). 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 second laminating step S420 may be performed by a molding machine 1240 of the B manufacturing line 1200. The molding machine 1240 operates in the same manner as the molding machine 1140 of the A manufacturing line 1100, And the bottom of the molding machine 1140 of the production line 1100 shares the same leg.

In the third laminating step S440, a fiber sheet including polyester and LMF may be laminated on the fiber sheet having undergone the second laminating step S420. The third laminating step S440 continuously stacks the thin fiber sheet continuously coming out through the napping step S300 in a horizontal reciprocating motion on the fiber sheet after the second laminating step S420. 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.

The third laminating step S430 may be performed by the molding machine 1440 of the C manufacturing line 1400 and the molding machine 1440 may be operated with the molding machines 1140 and 1240 of the A and B manufacturing lines 1100 and 1200 The bottoms of the molding machines 1140 and 1240 of the A and B manufacturing lines 1100 and 1200 share the same principle.

In the heating step S450, the fiber sheet subjected to the third lamination step S440 can be heated, and moreover, the surface of the fiber sheet after the third lamination step S440 is heated, and then the inside of the fiber sheet is dried . The heating step S450 may be performed in the heater 1500.

FIG. 5 is a view showing the heater 1500 in detail in an apparatus for implementing a method of manufacturing cotton according to an embodiment of the present invention.

In the heater 1500, a heating step (S450) of heating the laminated fibrous sheet by the molding machine 1440 of the C manufacturing line 1400 is performed. More specifically, the heater 1500 is composed of a heating roller 1510 of at least one pair of upper and lower portions for heating the surfaces of the upper surface and the lower surface of the fiber sheet laminate, and a hot air blower 1520 for totally hot air drying the fiber sheet laminate have. The heating roller 1510 includes a front end heating roller 1511 disposed at the front end of the air blower 1520 to heat the surface of the fiber sheet laminate and has a rear end heating And may further include a roller 1512.

The fiber sheet laminate is brought into contact with the roller surface while passing between the pair of front end heating rollers 1511, so that the contact surface of the fiber sheet laminate is cured to form a thin film. Even if the fiber sheet with the thin coating formed by the front end heating roller 1511 is hot air dried by the hot air 1520, the functional additive contained in the cotton may not be lost to the outside. The rear end heating roller 1512 can regulate a surface that can be lifted by the wind of the hot air blower 1520 once again.

When LMF (low melting fiber) is further added to the above-described A production line 1100 and C production line 1400, the LMF distributed on the upper and lower surfaces of the fiber sheet laminate is heated by the heater 1500 And melts while passing through the heating roller 1510 to firmly entangle the outer surface of the fiber sheet. As a result, the finished cotton is excellent in processability and form stability, and the microcapsules of the functional additive injected into the cotton can be prevented from escaping to the outside of the cotton so that the functionality can be maintained for a long time.

The outer surface of the fiber sheet laminate passes through the heating roller and can be evenly arranged. In particular, when the LMF is blended to produce the cotton, the LMF on the outer surface of the fiber sheet is thinly melted and the fibers of the surface are relatively firmly entangled. As a result, the finished cotton is excellent in processability and morphological stability, and the microcapsules of the functional additive sprayed in the spraying step S430 and distributed in the cotton can be prevented from leaking out of the cotton by washing or the like, Thus, the functionality of the cotton can be maintained for a longer period of time.

The production lines 1100, 1200, and 1400 are arranged in parallel with each other. The molding machines 1140, 1240 and 1440 of each of the production lines 1100, 1200 and 1400 share the bottom (not shown) of the bottoms and each has a round bottom (not shown). Thus, in each of the production lines 1100, 1200, and 1400, the fiber sheets manufactured from the carding machines 1130, 1230, and 1430 or the injectors 1300 are received by the molding machines 1140, 1240, It is stacked in turn on the moving frame. 3, a laminate (b) of the B production line 1200 is stacked on the laminate (a) of the A production line 1100, and a functional additive is added by the injector 1300 After being sprayed, the laminate (c) of the C production line 1400 is piled on it to form a thick cotton. The fiber sheets stacked up by the production lines 1100, 1200, and 1400 are surface-cleaned through the heater 1500. In the heater 1500, the surface of the fiber sheet laminate is heated and trimmed, and the whole is dried with hot air. Thereafter, the punching machine 1600 completes the punching by needle punching.

In each of the production lines 1100, 1200, and 1400, a thick cotton that is laminated by turning on a fiber sheet made of different raw fiber can be produced by putting different raw fibers into openers 1110, 1210, and 1410, respectively. Since the fiber sheet constituting the outer surface of the finished cotton is produced by the production line 1100 and the production line 1400 of C, the raw fiber material to be supplied to the A production line 1100 and the C production line 1400 , Uniformity can be given to the appearance and performance of the finished cotton.

Particularly, when the cotton is blended with the LMF, the LMF is added only to the A production line 1100 and the C production line 1400 without injecting the LMF into the B production line 1200, You can enjoy it enough. In this case, the processability and shape stability of the cotton can be improved, but the usage amount of the LMF can be reduced, so that the cotton can be more friendly to the human body and the production cost can be reduced.

The supplied LMF is mainly distributed on the outer surface of the cotton by the A manufacturing line 1100 and the C manufacturing line 1400. After passing through the heater 1500, the LMF of the surface is melted by heating roll, Since the cotton tissue is firmly entangled, the raw fibers located on the outer surface of the cotton are easily loosened or the shape of the cotton is not broken, so that the workability of the cotton can be improved.

At this time, the microcapsules of the functional additive injected in the injection step S430 and distributed in the cotton can be prevented from escaping out of the cotton due to the outer surface of the cotton firmly entangled by the LMF, Functionality can be maintained for a longer period of time.

In the punching step S500, the fiber sheet having undergone the forming step S400 is needle-punched and closed. Needle punching is performed by moving a needle vertically and sloping with respect to the fiber sheet surface. 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. The punching step (S500) may be performed in the punching machine (1600).

The punching machine 1600 may include a needle (not shown) that penetrates the inside of the fiber sheet fed from the heater 1500 and a needle plate (not shown) that has a needle and performs vertical reciprocating motion. 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 needles per 35 cm x 100 cm so that the fiber sheets can be sufficiently entangled. If less punching is performed, the cotton may become too soft to be wound, or it may be 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.

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 the cushion feeling of the finished cotton is insufficient and the fiber is broken depending on the kind of the raw fiber. There may be cases. 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, as in the method of manufacturing cotton according to the embodiment of the present invention, when the fabric or the nonwoven fabric is punched at the lower end of the fiber sheet, the woven fabric or the nonwoven fabric does not scatter the cotton, The structure of the object to be processed is not scattered and can be processed into a well-ordered state. Therefore, it is particularly useful for winding or lamination, and even if the LMF is used in a small amount, 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.

Since the cotton according to the present invention is produced by the method of producing cotton according to the present invention, it is excellent in air permeability, warmth and antibacterial property, and is excellent in shape retention even when LMF is used little. Further, the LMF is melted thinly on the surface by rolling heating to form a thin film on the outer surface of the cotton, so that the functional additive contained in the cotton can be prevented from being lost to the outside by washing or the like. Accordingly, the effect of the functional additive including the microcapsules containing the whitening oil or the cinnamon oil can be maintained for a long time.

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: Cotton manufacturing equipment
1100, 1200, 1400: Manufacturing line (line)
1110, 1210, 1410:
1111: Primary feed conveyor
1112: Secondary feed conveyor
1113: Photoelectric sensor
1114: Cylinder drum
1115: strip roller
1116: Beater roller
1117: Instrument cluster
1118: Blower
1120, 1220, 1420: mixing tank
1130, 1230, 1430: carding machine
1140, 1240, 1440: Molding machine
1300: Sprayer
1500: heater
1510: Heating roller
1511: Shearing heating roller
1512: rear end heating roller
1520: Heat wind
1600: Punching machine

Claims (5)

An opening step of removing impurities from the raw fiber,
A mixing step of mixing raw fiber materials having passed through the opening step in a spiral motion;
A dipping step of dipping the raw material fibers after the mixing step to form a fiber sheet,
A spraying step of spraying a functional additive onto the fiber sheet having undergone the nipping step;
A forming step of continuously forming the fiber sheet with a predetermined width,
And a punching step of needle punching the fiber sheet after the forming step,
The molding step
Heating the surface of the fiber sheet so that the contact surface of the fiber sheet is cured to form a thin film, then hot-air drying the inside of the fiber sheet, and reheating the contact surface to trim the excited surface. The method according to claim 1,
The molding step
A first lamination step of laminating a fiber sheet comprising a polyester and a low melting fiber (LMF)
A second laminating step of laminating a fiber sheet comprising polyester on the fiber sheet having undergone the first laminating step;
A third laminating step of laminating the polyester sheet and the LMF-containing fiber sheet on the fiber sheet having undergone the second laminating step;
And a heating step of heating the fiber sheet after the third laminating step. delete The method according to claim 1,
The functional additive
Characterized in that microcapsules containing white wood oil or cinnamon oil are mixed in a liquid binder. A cotton wool which is produced by the manufacturing method according to any one of claims 1 to 4.

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