KR20200084573A - Artificial filler with nanofiber applied and its manufacturing apparatus and method - Google Patents

Abstract

The present invention relates to a nanofiber-applied artificial filler, and a manufacturing apparatus and method. More specifically, the present invention relates to a nanofiber-applied artificial filler, and a manufacturing apparatus and method. To this end, nanofibers are added to opened synthetic fiber cotton through spinning to maximize heat retention functions while being light by an air pocket formed by nanofibers.

Description

Artificial filler with nanofibers and its manufacturing apparatus and method{Artificial filler with nanofiber applied and its manufacturing apparatus and method}

The present invention relates to an artificial filler to which nanofibers are applied, and an apparatus and method for manufacturing the same, and more specifically, by adding nanofibers through spinning on an opened synthetic fiber cotton, it is lightweight and maximizes heat retention by an air pocket formed by nanofibers. It relates to an artificial filler to which nanofibers are applied and a manufacturing apparatus and method thereof.

In general, natural materials such as wool, duck hair, goose hair, and synthetic fiber materials such as polyester and polyolefin are used as fillers used to impart warmth to clothing or bedding.

In the case of wool, the fiber itself is very soft, and has good comfort, heat retention, elasticity, hygroscopicity, water repellency, flame retardancy, etc. It is an ideal fiber for clothing. It is applied to various kinds of clothes and bedding. When used, there was a problem that the crimp (crimp) of wool was tangled from the tip (TIP) in the direction of the root (ROOT).

And, in the case of duck hair and goose hair, since the hair is carried, the loss in the sewing process is large, and the hair comes out through the sewn hole mark, and the aesthetic appearance is bad and the volume of the filling material decreases as the volume of the filling material decreases, and the warmth decreases. This occurred, and there was a problem such as requiring a process to unfold it, and as the worldwide awareness of animal protection has increased, the limitations of use are gradually increasing.

Polyester and polyolefin are used as synthetic fiber fillers used to solve the problems of these natural materials, and among them, polyester fiber fillers have excellent heat insulation effect, excellent bulk filling ability, smooth touch, excellent volume resilience, and aesthetic texture And because of various advantages over other fillers, it is currently commercially produced and sold in large quantities, and polyolefin fibers (particularly, polypropylene fibers) have advantages of light weight and quick drying property compared to polyester fibers.

However, the synthetic fiber filler is not suitable for a product requiring more heat retention because the heat retention is lower than that of the natural material despite excellent light weight and quick-drying properties. Light weight and excellent heat retention fillers are continuously required, and development of lighter and excellent heat retention fillers is required.

On the other hand, nanofibers are used in products such as non-woven fabrics, membranes, and braids, and are widely used in household goods, agriculture, clothing, and industrial applications.

Specifically, it is used in various fields such as artificial leather, artificial suede, sanitary napkins, clothing, diapers, packaging materials, miscellaneous materials, various filter materials, medical materials for gene carriers, and defense materials such as bulletproof vests.

However, the technique using the above-described nanofibers as a filler for thermal insulation has not been proposed.

Republic of Korea Registered Patent Publication No. 10-0514557 Republic of Korea Patent Publication No. 10-2008-0005524

Accordingly, an object of the present invention is to provide an artificial filler having light weight and excellent heat retention by using nanofibers as a filler.

In addition, in order to manufacture the artificial filler to which the nanofibers are applied, a nanofiber spinning machine is provided in the opener, and a nanofiber spinning machine is also provided in the storage tank of the cotton opened by passing through the opener. Another object is to provide an artificial filler manufacturing apparatus and method using nanofibers, which allow the artificial pocket to be provided with light, excellent heat retention, and quick drying characteristics by forming an air pocket.

A feature of the present invention for achieving the above object is an artificial filler comprising a synthetic fiber cotton opened, and nanofibers spun into the synthetic fiber cotton opened.

Another feature of the present invention is an artificial filler manufacturing apparatus comprising nanofibers comprising a first nanofiber spinning machine that emits nanofibers on the surface of the opened cotton, which is installed in front of the opening machine and the outlet side of the opening machine. .

In the above, the artificial filler manufacturing apparatus further comprises a second nanofiber spinning machine provided near the inlet of the storage tank in which the opened cotton discharged through the outlet of the opening machine is collected.

In addition, another feature of the present invention comprises a fiber-opening process of opening a fiber, and a first spinning process of spinning nanofibers on the surface of the opened cotton after the opening process. It is in the manufacturing method of the artificial filler, which further comprises a second spinning process for performing nanofiber spinning in the vicinity of the collected storage tank input.

In addition, the present invention is characterized in that the heat retention is increased by air pockets made of a microcavity formed between the synthetic fiber cotton (F1) and the nanofiber (F2) by spinning nanofibers (F2) on the synthetic fiber cotton (F1). do.

According to the present invention configured as described above, the residence time in the filler of air is increased by a plurality of air pockets generated by nanofibers by further spinning nanofibers into an artificial filler made of synthetic fibers, and the same is conventionally synthesized compared to the same thermal insulation properties. It is possible to achieve a lighter weight than a filler composed of only fibers, and it has an effect of having quick drying characteristics due to synthetic fiber cotton.

By adjusting the number of nanofiber spinning or adding a functional raw material to the nanofiber spinning process, there is an effect of improving the thermal insulation effect and imparting functionality, thereby improving satisfaction in use.

1 is a view showing an artificial filler using nanofibers according to the present invention
2 is a view showing an artificial filler manufacturing apparatus to which nanofibers according to the present invention are applied
Figure 3 is a view showing an example of an opening device in the artificial filler manufacturing apparatus to which the nanofibers according to the present invention is applied
4 is a view showing the structure of the nanofiber spinning machine in the artificial filler manufacturing apparatus to which the nanofibers according to the present invention is applied
5 is a view showing an installation example of a nanofiber spinning machine in the artificial filler manufacturing apparatus to which the nanofibers according to the present invention is applied

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

However, this is not intended to limit the technology described in this document to specific embodiments, and it should be understood that it includes various modifications, equivalents, and/or alternatives of embodiments of the document. In connection with the description of the drawings, similar reference numerals may be used for similar elements.

In addition, expressions such as "first," "second," and the like used in this document may modify various components, regardless of order and/or importance, to distinguish one component from another component. It is used but does not limit the components. For example, the'first part' and the'second part' may indicate different parts regardless of order or importance. For example, the first component may be referred to as a second component without departing from the scope of rights described in this document, and similarly, the second component may also be referred to as a first component.

Also, the terms used in this document are only used to describe specific embodiments, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person skilled in the art described in this document. Among the terms used in the present document, terms defined in the general dictionary may be interpreted as having the same or similar meaning in the context of the related art, and have an ideal or excessively formal meaning, unless explicitly defined in this document. Is not interpreted as In some cases, even terms defined in this document cannot be interpreted to exclude embodiments of this document.

The artificial filler to which the nanofibers according to the present invention are applied comprises a synthetic fiber cotton (F1) that has been opened, and a nanofiber (F2) that is spun into the synthetic fiber cotton (F1).

In the above, synthetic fiber cotton (F1) is a synthetic fiber cotton used as a known filler such as polyester, polyolefin, natural fiber cotton, mixed fiber cotton, and other materials that can be used as a filler.

In addition, nanofibers (F2) are formed of webs having a thickness of 1000 nm or less in a web form, and the main polymers are PU (polyurethane), PVDF (poly vinylidenefluoride), PLA (polylactic acid), PGA (poly glycolic acid), and PLLA (poly). -l-lactic acid, PCL (polyacproactone), PS (polystylene), PVA (polyvinylalchol), PAN (polyacylonitrile), PA (polyamide), PS (polysulfone), PVP (polyvinylpyrrolidone), PES (polyethersulfone), gelatin (gelatin) ), collagen (collagen) or a mixture thereof.

In addition, dimethylacetamide, dimethylformamide, methyl ethyl ketone, acetone, dichlorobenzene, and dichlorobenzene are used as solvents for dissolving the polymer at a radioactive viscosity. Ethanol, methanol, isopropylalcohol, trifluoroethanol, trichloroethanol, tetra hydrofuran, n-methyl-2-pyrrolidone ( n-methyl-2-pyrrolidinone, dimethyl sulfoxide, phenol, nomochlorobenzne, xylene, formic acid, ethyl acetate, chloroform (chloroform), methylene chloride (methylene chloride), acetic acid (acetic acid), sulfuric acid (sulfuric acid), water (water), etc. can be used alone or in combination.

In the spinning process of the nanofiber web, one or a mixture selected from aerogels, silica gel, zeolite, titanium oxide, and other metal and ceramic materials is further added to improve functionality such as heat retention.

Also, an antibacterial agent and a deodorant may be selectively added.

In addition, during the spinning process of the nanofiber web, a polymer resin for hot melt for adhesion may be further added. Examples include PP (polypropylene) hot melt, EVA (ethylene vinyl acetate) hot melt, and polyamide hot. Melts, polyurethane hot melts, etc. can be used alone or in combination, and the polymer resin for hot melt for adhesion enhances the adhesion between the synthetic fiber cotton and the spun nanofibers, which serve as a substrate, and then the synthetic fiber cotton When a filler composed of nanofibers and nanofibers are used, it serves to prevent the filler from being pushed to one side during washing or the like by strengthening the adhesive and the cover fabric surrounding it. Also, it can be used as an adhesive to ensure that the nanofiber is well adhered to the filler.

In the above, the polymer, the additive and the solvent are suitable to maintain a fibrous form during electrospinning, and the polymer material is suitable for a solvent in a range of about 5 to 90% by weight, and the additive is a polymer for the nanofiber web. Use 1-30 parts by weight based on 100 parts by weight of the solvent mixture.

On the other hand, the apparatus for manufacturing the artificial filler to which the nanofibers according to the present invention is applied is installed on the opening side of the opening machine 10 and the opening side of the opening machine 10, as shown in FIG. 2, nano on the surface of the opened cotton The first nanofiber spinning machine 20 for spinning fibers, the transfer pipe 30 connected to the outlet side of the opening machine 10 for transferring the opened cotton, and the opened cotton is provided in the middle of the transfer pipe 30 It is provided at the end of the blower fan 40 and the transfer pipe 30 for transferring the storage tank 50 for storing the cotton.

In the above, the opener 10 uses a well-known one, but looking at an example with reference to FIGS. 2 and 3, as shown in FIG. 2, an inlet 11 through which raw cotton wool before opening is input is formed, At the end of the inlet 11, a needle roller is provided on the outer circumferential surface to form an opening roller 13 for opening the raw cotton.

The opening roller 13 is provided with a plurality of sub-opening rollers 13b around the main opening roller 13a, as shown in FIG. 3, and the rotational speeds of the main opening rollers 13a and the sub-opening rollers 13b. , Adjust the diameter, etc. so that the cotton is transferred while spreading. In addition, by connecting one of the + and-poles to apply electricity to the opening roller, the roller acts as a collector that sets the direction so that the nanofiber adheres well to the opened filler.

The first nanofiber spinning machine 20, as shown in 4, the spinning solution is supplied to one side and a plurality of through holes (24) through which the spinning solution is discharged is a spinning solution supply pipe (25), the spinning solution supply pipe (25) Nozzle 26 fixedly installed in the through hole 24 of the body, an insertion groove 27 into which the spinning solution supply pipe 25 is inserted, a body 28 formed on one side, a through hole 29a through which the nozzle 26 penetrates ) Is perforated and comprises a cover 29 for closing the insertion groove 27 of the body 28 to fix the spinning solution supply pipe 25 and the nozzle 26.

The nanofiber spinning machine 20 configured as described above is provided on the outlet side of the opening roller 13, and as shown in FIG. 5, the height and angle can be adjusted on the frame 15 provided in front of the opening side of the opening roller 13 To be installed.

In the above, the height adjustment is performed by inserting a hole (not shown) in the center of the bracket 20a to which the nanofiber spinning machine 20 is coupled, and inserting the frame 15 of the opening machine into the insertion hole to fix the height adjustment bolt 20b. It is made by passing through the bracket (20a) and in close contact with the frame (15).

In addition, the angle adjustment is coupled so that the body 28 of the nanofiber spinning machine 20 is rotatable to the bracket 20a, and the locking state for the angle adjustment of the body 28 and the bracket 20a is locked. It is made by fixing. In order to apply electricity to the radiation nozzle block 25, one of + and-poles is applied to the electrodes to connect the electrodes to achieve electrospinning.

On the other hand, the nanofibers emitted from the first nanofiber spinning machine 20 in the filler manufacturing apparatus are spun on one side of the flat-opened synthetic fiber cotton discharged from the opener 10, so that the nanofibers are uniform while distributing the nanofibers. In order to improve the area of the fiber, as shown in FIG. 2, the second nanofiber spinning machine 60 is further provided on both sides of the lower portion of the inlet 52 of the storage tank 50.

At this time, the second nanofiber spinning machine 60 may be configured in the same form as the first nanofiber spinning machine 60, and other known nanofiber spinning machines may be used, and the distribution of the nanofibers is uniform. The second nanofiber spinning machine 60 may be installed in all directions at the bottom of the input port, and may be provided only on one side of the storage tank 50.

The nanofiber spinning machine may use a known spinning method such as electric solution spinning or electric melt spinning.

In addition, a nanospray coating machine may be provided at the installation position of the second nanofiber spinning machine to maximize thermal insulation by coating the spray with a nanospray on the filler.

And the middle portion of the storage tank 50 is further provided with a discharge port 54 for discharging the charged filler material, the discharge port 54 is connected to a discharge pipe (not shown) and a blower fan connected to the discharge pipe (not shown) ) To discharge the filler.

Looking at the method of manufacturing the artificial filler according to the present invention configured as described above, first, the synthetic fiber cotton is passed through an opener to perform an open-opening process, and the first nanofiber spinning machine on the surface of the opened cotton is passed through the opener ( When the first spinning process in which the nanofibers are spun by 20) and the opened cotton spun in which the nanofibers are spun are introduced into the storage tank 50 through the collection pipe, once by the second nanofiber spinning machine provided near the inlet of the storage tank. Further, a second spinning process of radiating nanofibers is performed, and the filler including synthetic fiber cotton and nanofibers collected in the storage tank is discharged through an outlet and used as a filler in future clothing or bedding.

In addition, the filler manufactured as above was found to have 57.1% of the measurement result of heat retention (KES-F7 LaboII) at 20±2℃ and 65±4% humidity, and that the heat retention of the currently used filler is usually about 30-40%. Considering this, it can be seen that the insulation power is very excellent.

In addition, the heat retention, resilience and weight reduction are maximized by the air pocket formed by the nanofibers.

F1: Open synthetic fiber cotton F2: Nano fiber
10: Opening machine 20: First nanofiber spinning machine
30: transfer pipe 40: blower fan
50: storage tank 60: second nanofiber spinning machine

Claims (10)

Synthetic fiber cotton (F1),
An artificial filler comprising nanofibers, characterized in that it comprises nanofibers (F2) that are spun onto the opened synthetic fiber cotton (F1). According to claim 1, The nanofiber (F2) is formed by forming a fiber having a thickness of 1000 nm or less in a web form, and the main polymers are PU (polyurethane), PVDF (poly vinylidenefluoride), PLA (polylactic acid), and PGA (poly glycolic). acid), PLLA(poly-l-lactic acid), PCL(polyacproactone), PS(polystylene), PVA(polyvinylalchol), PAN(polyacylonitrile), PA(polyamide), PS(polysulfone), PVP(polyvinylpyrrolidone), PES( Artificial filler with nanofibers characterized by using one or a mixture of polyethersulfone, gelatin, and collagen. The artificial filler according to claim 2, wherein one or a mixture selected from aerogels, silica gel, zeolite, titanium oxide, metal and ceramic materials is further added to the nanofibers. The artificial filler of claim 3, wherein the nanofiber further comprises an antibacterial agent or a deodorant. [4] The artificial filler of claim 3, wherein the nanofiber further comprises a polymer resin for hot melt for adhesion. Opening machine (10);
A first nanofiber spinning machine 20 installed in front of the outlet side of the carding machine 10 and spinning nanofibers on the surface of the opened cotton;
A transfer pipe 30 connected to the outlet side of the opening machine 10 to transfer the opened cotton;
A blowing fan 40 provided in the middle of the transfer pipe 30 to transfer the opened cotton;
A storage tank 50 provided at an end of the transfer pipe 30 to store cotton;
Apparatus for manufacturing artificial fillers comprising nanofibers, characterized in that it comprises a. 7. The method of claim 6, wherein the nanofiber spinning machine 20 is manufactured artificially applied to the nano-fibers, characterized in that installed in the frame 15 provided in front of the outlet side of the opening roller 13 to be adjustable in height and angle Device. The method of claim 6, wherein the apparatus for manufacturing the artificial filler is a second filler, the second nanofiber emitter (60) characterized in that the nano-fibers are applied to the lower side of the inlet (52) of the storage tank (50) is applied artificial filler. Manufacturing device. Opening process to open synthetic fiber cotton;
A first spinning process of spinning nanofibers on the surface of the opened cotton after the opening process;
A second spinning process of performing nanofiber spinning in the vicinity of the storage tank inlet in which the opened cotton and nanofibers are collected;
A method of manufacturing an artificial filler using nanofibers, characterized in that it comprises a. According to claim 1, Nanofiber (F2) is radiated to the synthetic fiber cotton (F1) is increased thermal insulation by air pockets made of a micro-space formed between the synthetic fiber cotton (F1) and nanofibers (F2) Artificial filler using nanofibers, characterized in that.

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