JP5007474B2 - Non-bonded cylinder manufacturing apparatus, non-bonded cylinder manufacturing method - Google Patents

Description

  The present invention relates to a manufacturing apparatus and a manufacturing method for a non-joined cylinder, and particularly relates to a manufacturing apparatus and a manufacturing method for a non-joined cylinder as an accessory to be attached to a part of a human body.

  Accessories to be worn on the human body, such as shorts, swimwear, fitness wear, hats, gloves, etc., are tubular bodies, and are worn by inserting a part of the human body through the opening.

As a method for manufacturing the tubular accessory as described above, the following method can be mainly exemplified. That is, trimming members having a three-dimensional shape corresponding to a part of the human body are manufactured by cutting a member such as a flat cloth into a necessary shape and sewing these cloth-like members (Patent Document 1, Patent Document). 2, see Patent Document 3).
JP-A-60-104501 JP 2003-328205 A Japanese Patent Laid-Open No. 2004-244781

  However, an accessory manufactured by sewing a cloth-like member has a problem that the stitched portion is thicker than other portions, and the wearer feels uncomfortable or does not feel refreshed. In particular, a cloth-like member having enhanced functionality (for example, a waterproof and moisture-permeable function or a function of reducing resistance from water) has a problem that the function cannot be exhibited at the joint portion.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide an apparatus and a method for manufacturing a non-joined cylindrical body made of nanofibers.

  In order to solve the above-mentioned problems, a non-bonded cylinder manufacturing apparatus according to the present invention is a non-bonded cylinder in which a raw material liquid as a nanofiber raw material is electrostatically exploded in a space, and the manufactured nanofibers are deposited. A non-bonded cylindrical body manufacturing apparatus for manufacturing a raw material liquid flowing out means for flowing a raw material liquid into a space, a raw material liquid charging means for charging the raw material liquid, and a desired shape of a non-bonded cylindrical body It is characterized by comprising deposition means for realizing a three-dimensional shape, and attracting means for attracting nanofibers to the deposition means.

  According to this, it becomes possible to manufacture an unjoined cylinder easily. Moreover, since the non-bonded cylindrical body is formed of nanofibers, various functions can be added by changing the type of nanofiber to be deposited and the manufacturing conditions of the nanofiber.

  In particular, it is preferable that the non-joined cylinder is an accessory to be attached to a human body, and the depositing means has a shape corresponding to a portion of the human body.

  As a result, it is a solid body that fits the body shape without sewing or joining, such as a tubular body that is an accessory to be attached to itself, such as a swimsuit, diaper, wet suit, bra, hat, gloves, socks, stomach wrap, clothes, underwear, etc. It can be manufactured in a shape.

  Furthermore, it is preferable to include a driving unit that drives the deposition unit to change the surface on which the nanofibers are deposited.

  As a result, it is relatively difficult to deposit nanofibers on non-bonded cylinders (for example, spats, T-shirts, etc.) having three or more openings and intersecting a plurality of cylinders (for example, crotch of spats). It is possible to drive the deposition means so that more nanofibers are deposited on the part and the side part of the T-shirt) so that the part is directed in the flying direction of the nanofibers.

  In order to achieve the above object, the non-bonded cylindrical body manufacturing method according to the present invention is a non-bonding method in which a raw material liquid as a raw material of nanofibers is electrostatically exploded in a space, and the manufactured nanofibers are deposited. A non-bonded cylindrical body manufacturing method for manufacturing a cylindrical body, in which a raw material liquid outflow process for flowing a raw material liquid into a space, a raw material liquid charging process for charging the raw material liquid, and a desired non-joined cylindrical body shape It includes an attracting step of attracting the nanofibers manufactured to the deposition means that realizes a corresponding three-dimensional shape, and a driving step of driving the deposition means to change the surface on which the nanofibers are deposited.

  The effect by the said method is the same as the effect of the said non-joining cylinder manufacturing apparatus.

  Furthermore, it is preferable to include a measurement process for measuring the body shape of the subject and a molding process for molding the deposition means based on the result obtained in the measurement process.

  According to this, it becomes possible to manufacture a non-joined cylindrical body (jewelry) having a shape that matches the body shape (three-dimensional shape) of the subject.

  According to the present invention, since the nanofiber can be deposited on the deposition means that realizes a three-dimensional shape corresponding to the shape of the desired non-joined cylindrical body, the cylindrical body of the desired shape formed of the nanofiber is not joined. Can be manufactured.

(Embodiment 1)
FIG. 1 is a diagram schematically showing a non-joined cylindrical body manufacturing apparatus.

  As shown in the figure, the non-bonded cylinder manufacturing apparatus 100 is an apparatus for manufacturing a leotard (body suit) among non-bonded cylinders. The nanofiber emitting means 200, the deposition means 110, the attracting means 120, Drive means 130. The nanofiber emitting means 200 is attached to the mounting table 201.

  FIG. 2 is a cross-sectional view showing the nanofiber emitting means.

  FIG. 3 is a perspective view showing the nanofiber emitting means.

  As shown in these figures, the nanofiber emitting means 200 applies a charge to the raw material liquid 300 that is the raw material of the nanofiber 301 and charges it, and discharges the raw material liquid 300 into the space, which is manufactured by electrostatic explosion. The device discharges the nanofiber 301, and includes a raw material liquid outflow means 210, a raw material liquid charging means 220, and a gas flow generation means 203.

  Here, in the drawing, a raw material liquid for producing nanofibers is given a symbol “300”, and a produced nanofiber is given a symbol “301”. However, when the nanofiber is manufactured, since the raw material liquid 300 changes to the nanofiber 301 while electrostatic explosion, the boundary between the raw material liquid 300 and the nanofiber 301 is ambiguous and cannot be clearly distinguished. Absent.

  The raw material liquid outflow means 210 is a device that causes the raw material liquid 300 to flow out into the space. In the present embodiment, the raw material liquid outflow means 210 employs a device that discharges the raw material liquid 300 radially by centrifugal force, and includes an outflow body 211, a rotating shaft body 212, and a drive source 213. .

  The outflow body 211 is a container that can cause the raw material liquid 300 to flow out into the space by centrifugal force due to its rotation while the raw material liquid 300 is injected inward, and has a cylindrical shape with one end closed. Has a number of outflow holes 216. The outflow body 211 is formed of a conductor in order to impart a charge to the raw material liquid 300 stored inward, and also functions as a component of the raw material liquid charging means 220.

  Specifically, it is preferable that the diameter of the outflow body 211 is adopted from a range of 10 mm or more and 300 mm or less. This is because if it is too large, it will be difficult to concentrate the raw material liquid 300 and the nanofiber 301 by the gas flow described later, and if the weight balance is slightly deviated, such as the rotational axis of the effluent 211 is deviated, a large vibration will occur. This is because a structure that firmly supports the outflow body 211 is required to suppress the vibration. On the other hand, if it is too small, the rotation for causing the raw material liquid 300 to flow out by centrifugal force must be increased, which causes problems such as load and vibration of the drive source. Furthermore, it is preferable to employ the diameter of the outflow body 211 from the range of 20 mm or more and 100 mm or less.

  In addition, the shape of the outflow hole 216 is preferably circular, and the diameter thereof is preferably from about 0.01 mm to 3 mm, although it depends on the thickness of the outflow body 211. This is because if the outflow hole 216 is too small, it is difficult to cause the raw material liquid 300 to flow out of the outflow body 211, and if it is too large, the unit of the raw material liquid 300 that flows out from one outflow hole 216. This is because the amount per hour becomes too large (that is, the thickness of the line formed by the flowing out raw material liquid 300 becomes too thick), making it difficult to manufacture the nanofiber 301 having a desired diameter.

  The shape of the outflow body 211 is not limited to a cylindrical shape, and may be a polygonal cylindrical shape having a polygonal cross section or a conical shape. Any shape may be used as long as the raw material liquid 300 can flow out of the outflow hole 216 by centrifugal force when the outflow hole 216 rotates. Further, the shape of the outflow hole 216 is not limited to a circular shape, and may be a polygonal shape or a star shape.

  The rotating shaft body 212 is a shaft body for transmitting the driving force for rotating the outflow body 211 and causing the raw material liquid 300 to flow out by centrifugal force, and from the other end of the outflow body 211 to the inside of the outflow body 211. This is a rod-like body that is inserted and the closed portion and one end portion of the outflow body 211 are joined. The other end is joined to the rotation shaft of the drive source 213. The rotating shaft body 212 is connected via an insulator so that the outflow body 211 and a drive source 213 described later are not electrically connected.

  Further, the rotating shaft body 212 is rotatably supported by the bearing 208 so as not to be shaken by the outflow body 211 rotating.

  The driving source 213 is a device that applies a rotational driving force to the outflow body 211 via the rotating shaft body 212 in order to cause the raw material liquid 300 to flow out from the outflow hole 216 by centrifugal force. An electric motor is employed as the source 213. The rotational speed of the outflow body 211 is selected from a range of several rpm or more and 10,000 rpm or less depending on the diameter of the outflow hole 216, the viscosity of the raw material liquid 300 to be used, the type of polymer substance in the raw material liquid, and the like. It is preferable.

  The raw material liquid outflow means 210 may be any device that discharges the raw material liquid 300 into the space, and may be one that injects the raw material liquid 300 using pressure, or one that causes the raw material liquid 300 to flow out simply by dropping.

  The raw material liquid charging means 220 is a device for applying a charge to the raw material liquid 300 for charging. In the case of the present embodiment, the raw material liquid charging means 220 employs a configuration that generates an induced charge and applies the charge to the raw material liquid 300. The induction electrode 221, the induction power supply 222, and the grounding means 223 are connected to each other. I have. The effluent 211 also functions as a part of the raw material liquid charging means 220.

  The induction electrode 221 is a cylindrical member that is a member made of a conductor that concentrically surrounds the peripheral wall of the outflow body 211 and covers the outflow hole 216. The induction electrode 221 is a member for inducing charges to the effluent 211 that is arranged near the axis and is grounded by itself being maintained at a voltage (as an absolute value) that is large relative to the ground. The induction electrode 221 also functions as a wind tunnel body 209 that guides the gas flow from the gas flow generation unit 203 to the guide unit 206. That is, if a negative voltage is applied to the induction electrode 221, the raw material liquid 300 flowing out of the outflow hole is positively charged, while if a positive voltage is applied to the induction electrode, the outflow hole is charged. The raw material liquid 300 flowing out from the tank is negatively charged.

  The inner diameter of the induction electrode 221 is arranged at a predetermined interval from the outflow body 211 and needs to be larger than the outer diameter of the outflow body 211. Specifically, it is desirable that the inner diameter is such that the electric field strength is 1 KV / cm or more between the induction electrode 221 and the effluent 211.

  In addition, it is necessary to change the flight direction of the raw material liquid 300 before the raw material liquid 300 flowing out from the outflow body 211 reaches the induction electrode 221. Therefore, the inner diameter of the induction electrode 221 is comprehensively determined based on the voltage that can be applied by the induction power source 222 and the outflow speed of the raw material liquid 300.

  Specifically, the inner diameter of the induction electrode 221 is preferably adopted from a range of 200 mm or more and 800 mm or less. The shape of the induction electrode 221 is not limited to an annular shape, and may be a polygonal annular member having a polygonal shape.

  The induction power supply 222 is a power supply that can apply a high voltage to the induction electrode 221. The induction power supply 222 is a DC power supply, and is a device that can set a voltage (referenced to the ground potential) applied to the induction electrode 221 and its polarity.

  The voltage applied by the induction power source 222 to the induction electrode 221 is preferably set from a value in the range of 10 KV to 200 KV. In particular, the electric field strength between the effluent 211 and the induction electrode 221 is important, and it is preferable to arrange the applied voltage and the induction electrode 221 so that the electric field strength is 1 KV / cm or more.

  The grounding means 223 is a member that is electrically connected to the outflow body 211 and can maintain the outflow body 211 at the ground potential. One end of the grounding means 223 functions as a brush so that the electrical connection state can be maintained even when the outflow body 211 is in a rotating state, and the other end is connected to the ground.

  If the induction method is adopted for the raw material liquid charging means 220 as in the present embodiment, the raw material liquid 300 can be charged while the effluent 211 is maintained at the ground potential. If the outflow body 211 is in the ground potential state, members such as the rotating shaft body 212 and the drive source 213 connected to the outflow body 211 do not need to take measures against the high voltage between the outflow body 211, and the raw material A simple structure can be adopted as the liquid outflow means 210, which is preferable.

  In addition, the outflow body 211 is formed of an insulator, and an electrode that is in direct contact with the raw material liquid 300 stored in the outflow body 211 is disposed inside the outflow body 211, and charges are applied to the raw material liquid 300 using the electrodes. It may be a thing.

  As the raw material liquid charging means 220, a charge may be imparted to the raw material liquid 300 by connecting a power source directly to the outflow body 211, maintaining the outflow body 211 at a high voltage, and grounding the induction electrode 221. Further, a voltage may be applied between the effluent 211 and the induction electrode 221 regardless of the ground potential.

  The gas flow generation unit 203 is a device that generates a gas flow for changing the flight direction of the raw material liquid 300 flowing out from the outflow body 211 to the direction guided by the guide unit 206. The gas flow generation means 203 is provided on the back portion of the drive source 213 and generates a gas flow from the drive source 213 toward the tip of the outflow body 211. The gas flow generating means 203 can generate wind power that can change the raw material liquid 300 in the axial direction until the raw material liquid 300 flowing out in the radial direction from the outflow body 211 reaches the induction electrode 221. It has become. In FIG. 2, the gas flow is indicated by arrows. In the case of the present embodiment, a blower including an axial fan that forcibly blows the atmosphere around the end of the nanofiber emitting means 200 is employed as the gas flow generating means 203.

  The gas flow generation means 203 includes a wind tunnel body 209 that is a conduit that guides the generated gas flow to the vicinity of the outflow body 211 without causing it to diverge. The gas flow guided by the wind tunnel body 209 intersects the raw material liquid 300 that has flowed out of the outflow body 211, and changes the flight direction of the raw material liquid 300.

  Furthermore, the gas flow generation unit 203 includes a gas flow control unit 204 and a heating unit 205.

  The gas flow control means 204 is a member having a function of controlling the gas flow so that the gas flow generated by the gas flow generation means 203 does not directly hit the outflow hole 216. In the case of the present embodiment, the gas flow control means 204 includes the inside of the wind tunnel body 209. A funnel-shaped member that is arranged on the side and spreads toward the outflow body 211 functions as the gas flow control means 204. Since the gas flow does not directly hit the outflow hole 216 by the gas flow control means 204, the raw material liquid 300 flowing out from the outflow hole 216 is prevented from evaporating early and blocking the outflow hole 216 as much as possible. The liquid 300 can be kept flowing out stably. The gas flow control means 204 may be a wall-shaped windbreak wall that is arranged on the windward side of the outflow hole 216 and prevents the gas flow from reaching the vicinity of the outflow hole 216.

  The heating unit 205 is a heating source that heats the gas constituting the gas flow generated by the gas flow generation unit 203. In the case of the present embodiment, the heating means 205 is an annular heater disposed inside the wind tunnel body 209, and can heat the gas passing through the heating means 205. By heating the gas flow with the heating means 205, evaporation of the raw material liquid 300 flowing out into the space is promoted, and the nanofiber 301 can be manufactured efficiently.

  Note that the gas flow generating means 203 may be constituted by another blower such as a sirocco fan. Further, the gas flow generation means 203 may generate a gas flow made of the gas by introducing a high-pressure gas into the wind tunnel body 209. Further, the gas flow generating means 203 is not limited to the one that pushes out the gas flow, but may be one that generates a gas flow by sucking the gas. For example, a gas flow may be generated inside the wind tunnel body 209 by vacuum suction.

  The nanofiber emitting means 200 is not limited to the one described above, and may be the one shown in FIG. That is, the raw material liquid outflow means 210 for injecting the raw material liquid 300 using pressure, the flat plate-like induction electrode 221 disposed at a position facing the outflow hole 216 of the raw material liquid outflow means 210, and the raw material liquid outflow means 210 Gas flow generating means 203 for changing the flight direction of the raw material liquid 300 flowing out from the raw material liquid outflowing means 210 to the direction of the induction electrode 221 from the raw material liquid outflowing means 210 to the direction intersecting the direction of the induction electrode 221; The nanofiber emitting means 200 includes a plate-like wind tunnel body (not shown) that closes the gap with the head 221. Such a nanofiber emitting means 200 can be simplified because there is no active part in the part where the high voltage is applied.

  The depositing means 110 (see FIG. 1) is a member that receives and deposits the nanofibers 301 emitted from the nanofiber emitting means 200, and has a shape of a non-bonded cylinder (leotard) manufactured by the non-bonded cylinder manufacturing apparatus 100. It is a model simulating the shape of a three-dimensional human body corresponding to. In the present embodiment, the deposition means 110 also functions as an attracting electrode 123 for attracting the charged nanofibers 301 with an electric field, and the surface of the deposition means 110 is covered with a conductor (metal). ing. Note that the cut surfaces corresponding to the neck, arms, and legs are not covered with the conductor, and the insulator is exposed.

The driving means 130 is an apparatus that drives the deposition means 110 to change the surface of the deposition means 110 on which the nanofibers 301 emitted from the nanofiber emission means 200 are deposited.
The driving unit 130 includes an articulated arm 131 to which the deposition unit 110 is attached at the tip thereof, and various surfaces of the deposition unit 110 can be directed to the nanofiber emitting unit 200.

  The attracting means 120 is an apparatus that attracts the nanofibers 301 emitted from the nanofiber emitting means 200 to the deposition means 110. In the case of the present embodiment, the attracting means 120 is a device that attracts the nanofiber 301 that is charged by an electric field, and includes an attracting electrode 123 and an attracting power source 124.

  The attracting electrode 123 is a conductor member that is maintained at a predetermined potential with respect to the ground by the attracting power source 124. In the case of this embodiment, the deposition means 110 simulating the shape of a human body also functions as the attracting electrode 123. When a potential is applied to the attracting electrode 123, an electric field is generated in the space, and the charged nanofiber 301 is attracted toward the attracting electrode 123. Accordingly, the nanofibers 301 are deposited on the surface of the attracting electrode 123 that also functions as the deposition means 110, and a non-woven fabric is formed.

  The attraction power source 124 is a DC power source capable of maintaining the attraction electrode 123 at a predetermined potential with respect to the ground. Further, the attracting power source 124 can change the positive / negative (including ground potential) of the potential applied to the attracting electrode 123.

  Next, the manufacturing method of the non-joining cylinder (leotard) using the non-joining cylinder manufacturing apparatus 100 of the said structure is demonstrated, referring FIGS. 1-3.

  First, in order to manufacture a leotard corresponding to the body shape of the subject, the body shape of the subject is measured (measurement process). Although the measuring method is not particularly limited, a method of converting the body shape into three-dimensional position data using a laser beam can be exemplified. And the deposition means 110 is shape | molded based on the three-dimensional position data obtained at the said measurement process (molding process). In the case of the present embodiment, the deposition unit 110 also functions as the attracting electrode 123, so that the necessary surface of the deposition unit 110 is formed of a metal that is a conductor.

  Next, a process of depositing nanofibers 301 and manufacturing a leotard will be described.

  First, a gas flow is generated inside the wind tunnel body 209 by the gas flow generation means 203.

  Next, the raw material liquid 300 is supplied to the effluent 211. The raw material liquid 300 is separately stored in a tank (not shown), passes through a supply path 217 (see FIG. 2), and is supplied into the effluent 211 from the other end of the effluent 211.

  Here, as a polymer substance constituting the nanofiber 301, polypropylene, polyethylene, polystyrene, polyethylene oxide, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, poly-m-phenylene terephthalate, poly-p-phenylene isophthalate, Polyvinylidene fluoride, polyvinylidene fluoride-hexafluoropropylene copolymer, polyvinyl chloride, polyvinylidene chloride-acrylate copolymer, polyacrylonitrile, polyacrylonitrile-methacrylate copolymer, polycarbonate, polyarylate, polyester carbonate, polyamide, aramid , Polyimide, polycaprolactone, polylactic acid, polyglycolic acid, collagen, polyhydroxybutyric acid, polyvinyl acetate Le, polypeptides, and the like, and copolymers can be exemplified. Moreover, the kind selected from the above may be used, and a plurality of kinds may be mixed. Note that the above is an example, and the present invention is not limited to the above polymer substance.

  Solvents used for the raw material liquid 300 include methanol, ethanol, 1-propanol, 2-propanol, hexafluoroisopropanol, tetraethylene glycol, triethylene glycol, dibenzyl alcohol, 1,3-dioxolane, 1,4-dioxane. Methyl ethyl ketone, methyl isobutyl ketone, methyl-n-hexyl ketone, methyl-n-propyl ketone, diisopropyl ketone, diisobutyl ketone, acetone, hexafluoroacetone, phenol, formic acid, methyl formate, ethyl formate, propyl formate, methyl benzoate, Ethyl benzoate, propyl benzoate, methyl acetate, ethyl acetate, propyl acetate, dimethyl phthalate, diethyl phthalate, dipropyl phthalate, methyl chloride, ethyl chloride, methylene chloride, chloroform , O-chlorotoluene, p-chlorotoluene, chloroform, carbon tetrachloride, 1,1-dichloroethane, 1,2-dichloroethane, trichloroethane, dichloropropane, dibromoethane, dibromopropane, methyl bromide, ethyl bromide, odor Propyl chloride, acetic acid, benzene, toluene, hexane, cyclohexane, cyclohexanone, cyclopentane, o-xylene, p-xylene, m-xylene, acetonitrile, tetrahydrofuran, N, N-dimethylformamide, N, N-dimethylacetamide, dimethylsulfo Examples thereof include oxide, pyridine, water and the like. Moreover, the kind selected from the above may be used, and a plurality of kinds may be mixed. In addition, the above is an illustration and this invention is not limited to the said solvent.

Furthermore, an additive such as an aggregate or a plasticizer may be added to the raw material liquid 300. Examples of the additive include oxides, carbides, nitrides, borides, silicides, fluorides, sulfides, and the like. From the viewpoints of heat resistance and workability, oxides are preferably used. Examples of the oxide include Al ₂ O ₃ , SiO ₂ , TiO ₂ , Li ₂ O, Na ₂ O, MgO, CaO, SrO, BaO, B ₂ O ₃ , P ₂ O ₅ , SnO ₂ , ZrO ₂ , K. ₂ O, Cs ₂ O, ZnO, Sb ₂ O ₃ , As ₂ O ₃ , CeO ₂ , V ₂ O ₅ , Cr ₂ O ₃ , MnO, Fe ₂ O ₃ , CoO, NiO, Y ₂ O ₃ , Lu ₂ Examples thereof include O ₃ , Yb ₂ O ₃ , HfO ₂ , Nb ₂ O _{5 and the} like. Moreover, the kind selected from the above may be used, and a plurality of kinds may be mixed. In addition, the above is an illustration and this invention is not limited to the said additive.

  The mixing ratio of the solvent and the polymer material varies depending on the solvent and the polymer material, but the amount of the solvent is preferably between about 60 wt% and 98 wt%.

  Next, a voltage is applied to the induction electrode 221 by the induction power source 222 to supply electric charge to the raw material liquid 300 stored in the effluent 211 (raw material liquid charging step), and the effluent 211 is rotated by the drive source 213. Then, the charged raw material liquid 300 flows out from the outflow hole 216 by centrifugal force (raw material liquid outflow process).

  The raw material liquid 300 that has flowed radially in the radial direction of the outflow body 211 is changed in flight direction by the gas flow, conveyed to the gas flow, and guided by the wind tunnel body 209. The raw material liquid 300 is converted into nanofibers 301 by electrostatic explosion as the solvent evaporates during flight in the space, the charge density increases (nanofiber manufacturing process). The nanofiber 301 is then released along with the gas flow. Further, the gas flow is heated by the heating means 205, and while guiding the flight of the raw material liquid 300, heat is applied to the raw material liquid 300 to promote the evaporation of the solvent, and the production of the nanofiber 301 is promoted. Yes.

  The nanofiber 301 emitted from the nanofiber emitting means 200 is attracted by the electric field formed by the attracting electrode 123 to which a voltage is applied, and is deposited on the surface of the attracting electrode 123, that is, the surface of the deposition means 110 (deposition). Process).

  The attracting electrode 123 has a three-dimensional shape imitating a human body shape, and the entire surface of the attracting electrode 123 has the same potential. Therefore, the nanofiber 301 flying from one direction is affected by the electric field. (The side opposite to the nanofiber emitting means 200). However, the rate at which the nanofibers 301 are deposited on the back side is lower than the front side (the side facing the nanofiber emitting means 200), and the human body has a complicated body shape. The nanofibers 301 are also deposited on the crotch and the side portions. Hateful. Therefore, the driving means 130 drives the attracting electrode 123 so that almost the entire surface of the attracting electrode 123 faces the direction in which the nanofiber 301 is best deposited (the direction facing the nanofiber emitting means 200) (driving step). ). In particular, since the portion corresponding to the crotch and the side has a narrow interval and the nanofiber 301 is not easily deposited, the time required for the portion corresponding to the crotch and the side to face the nanofiber emitting means 200 is longer than the other portion. The electrode 123 is driven.

  As described above, the nanofiber 301 is deposited on the necessary surface of the deposition means 110 (attraction electrode 123) corresponding to the human body shape, and the leotard is manufactured. Finally, the nanofiber 301 deposited from the deposition means 110 is peeled off, and the leotard is recovered.

  By the apparatus and the process as described above, an unjoined leotard, that is, an accessory to be worn on the human body is manufactured. The non-joined and tubular accessory manufactured in this way is non-sewn and has no joint. That is, the manufactured accessory does not have a portion where the fabric formed by the nanofibers 301 overlaps. Therefore, the function (for example, breathability, moisture permeability waterproofness, etc.) of the fabric composed of the nanofibers 301 can be ensured throughout the jewelry. In addition, when wearing the accessory, it is possible to completely eliminate discomfort and discomfort due to the joining margin that the subject feels.

(Embodiment 2)
Next, another embodiment will be described with reference to the drawings.

  FIG. 5 is a diagram schematically showing another non-joined cylindrical body manufacturing apparatus.

  As shown in the figure, the non-bonded cylinder manufacturing apparatus 100 is an apparatus for manufacturing a glove as a non-bonded cylinder, and includes two nanofiber emitting means 200, a plurality of deposition means 110, and two attracting means. 120, a peeling means 190, and a turntable 111 are provided.

  Since the nanofiber emitting means 200 has the same configuration as the nanofiber emitting means 200 in the first embodiment, description thereof is omitted.

  The depositing means 110 is a member that receives and deposits the nanofibers 301 emitted from the nanofiber emitting means 200, and has a three-dimensional shape corresponding to the shape of the non-bonded cylinder (gloves) manufactured by the non-bonded cylinder manufacturing apparatus 100. This model imitates the shape of a simple hand. In the case of the present embodiment, the deposition means 110 deposits the nanofibers 301 in two processes, a process of attracting the nanofibers 301 by a gas flow passing through the deposition means 110 and a process of attracting the nanofibers 301 by an electric field. . Therefore, the deposition means 110 is hollow, and a large number of fine ventilation holes are provided so that a gas flow can pass from the outside to the inside of the deposition means 110. Furthermore, the deposition means 110 also functions as an attracting electrode 123 for attracting the charged nanofiber 301 with an electric field, and is formed of a conductor (metal). Specifically, the deposition means 110 is formed by molding a metal mesh into a hand shape.

  FIG. 6 is a cross-sectional view showing the first attracting means and its vicinity.

  As shown in the figure, the first attracting means 120 a is an apparatus for attracting the nanofiber 301 emitted from the first nanofiber emitting means 200 a to the deposition means 110. In the case of the present embodiment, the first attracting means 120 a is an apparatus that attracts the nanofiber 301 by sucking a gas, and includes a sucking means 121 and a connection conduit 122.

  The suction means 121 is disposed below the turntable 111 and generates a gas flow that flows from the outside of the deposition means 110 through the deposition means 110 and flows inward as indicated by the dashed arrows in FIG. It is. For example, as the suction means 121, a blower such as a sirocco fan or an axial fan is employed.

  The connection conduit 122 is a conduit that is connected to the deposition unit 110 and transmits the suction force of the suction unit 121 to the deposition unit 110, and can be disconnected from the deposition unit 110 that has been connected by the rotation of the turntable 111. A connection can be established with the depositing means 110 arriving at.

  The turntable 111 (see FIG. 5) is a circular member having a plurality of deposition means 110 at the periphery, and the deposition means 110 is revolved by rotating a predetermined angle around the center of the turntable 111 as a rotation center. In this device, the deposition means 110 can be moved in front of each nanofiber emitting means 200. Further, the turntable 111 includes driving means (not shown) that can rotate the respective deposition means 110 in correspondence with the respective deposition means 110.

  FIG. 7 is a sectional view showing the second attracting means and its vicinity.

  As shown in the figure, the second attracting means 120b is an apparatus for attracting the nanofiber 301 emitted from the second nanofiber emitting means 200b to the deposition means 110. In the case of the present embodiment, the second attracting means 120b is a device that attracts the nanofiber 301 that is charged by an electric field, and includes an attracting electrode 123 and an attracting power source 124 as the deposition means 110. The attracting power supply 124 is disposed below the turntable 111, and the deposition means 110 that revolves by the rotation of the turntable 111 is connected only when it is disposed above the attracting power supply 124. That is, when the nanofiber 301 is positively charged, a negative voltage is applied to the attracting electrode 123 from the attracting power source 124 so that the charged nanofiber 301 is connected to the attracting electrode. Invite to 123. When the nanofiber 301 is negatively charged, a voltage opposite to that described above may be applied to the attracting electrode 123.

  Next, the manufacturing method of the nanofiber 301 using the non-joined cylinder manufacturing apparatus 100 concerning Embodiment 2 is demonstrated, referring FIGS. 5-7.

  First, the first nanofiber emitting means 200a is operated, and the nanofiber 301 is emitted. Since the discharging method is the same as that of the first embodiment, the description is omitted.

  In this state, as shown in FIG. 6, the first attracting means 120 a attracts the nanofibers 301 to the deposition means 110 by sucking the gas flow by the suction means 121 (first attracting step). And the nanofiber 301 attracted with a gas flow is deposited on the deposition means 110 (1st deposition process). Here, since the deposition unit 110 is rotated by a driving unit (not shown), the nanofibers 301 are deposited over the entire circumference of the deposition unit 110.

  When it is determined that the nanofiber 301 is sufficiently deposited, the nanofiber emitting means 200 stops moving, and the turntable 111 is rotated to cause the deposition means 110 to revolve at a predetermined angle.

  Subsequently, new nanofibers 301 are similarly deposited on the nanofibers 301 deposited in the first deposition step using the second nanofiber emitting means 200b and the second attracting means 120b.

  As shown in FIG. 7, an attracting power source 124 of the second attracting means 120b is disposed below the deposition means 110 disposed at the corresponding position of the second nanofiber emitting means 200b. The deposition means 110 that also functions as the attracting electrode 123 is applied with a voltage having a polarity opposite to that of the charged nanofiber 301 by the attracting power source 124 (may be a ground potential), and is applied by an electric field. The nanofiber 301 is attracted (second attracting step). Then, the nanofiber 301 is deposited on the nanofiber 301 deposited in the first deposition process (second deposition process).

  As described above, a laminated body of nanofibers 301 in the shape of a glove which is a non-bonded cylindrical body is manufactured.

  Here, the kind of the nanofiber 301 deposited by the first nanofiber emitting means 200a and the kind of the nanofiber 301 deposited by the second nanofiber emitting means 200b may be the same or different. Moreover, although the same kind of nanofiber 301 is deposited, the diameter of the nanofiber 301 to be deposited may be changed. The diameter of the nanofiber 301 tends to be proportional to the voltage between the effluent 211 and the induction electrode 221 when the raw material liquid 300 is charged. The higher the voltage, the smaller the diameter of the nanofiber 301 seems to be. .

  The specifications of the two nanofiber emitting means 200 may be different depending on the type and diameter of the nanofiber 301 to be deposited.

  Finally, the nanofiber 301 deposited from the deposition means 110 is peeled off using the peeling means 190 and recovered. The peeling unit 190 is a device that peels off the nanofiber 301 deposited from the deposition unit 110 and formed into a nonwoven fabric. Specifically, a member such as a thin crochet is inserted into the deposited nanofiber 301, and the nanofiber 301 is peeled off from the depositing means 110 by hooking the nanofiber 301 at the ridge and moving the crochet away from the depositing means 110. It is possible to show the devices to be used.

  The glove which is a non-joining cylinder is manufactured by the above apparatuses and processes. The gloves manufactured in this way are very easy to adapt to the hand because there are no joints. In addition, it is different from a conventional glove in which a resin is coated on a hand mold and the resin is removed from the mold as in the prior art, and the glove formed in a non-woven shape with the nanofiber 301 can have air permeability. Furthermore, it is also possible to manufacture a glove that blocks viruses while ensuring air permeability by manufacturing a multi-layered glove.

  In the above-described embodiment, the case where the function of the deposition unit 110 and the function of the attracting electrode 123 are combined in one member has been described, but these may be separate.

  Moreover, although the leotard and the glove are listed and described as the cylinder, the cylinder in the claims and the specification includes at least one annular portion.

  Further, the term “non-joined” means that the cylindrical body has an annular part having no joint in the circumferential direction. Accordingly, when the nanofibers 301 are deposited in a plurality of layers by a plurality of deposition steps, it may be possible to join the layers, but the joining is a joining in the thickness direction, not in the circumferential direction of the annular portion, Such a case is included in the non-junction in the claims and specification.

  INDUSTRIAL APPLICABILITY The present invention can be used for the production of accessories such as swimsuits and underwear that cause problems due to the presence of joints, and other tubular cushioning coverings.

It is a figure which shows a non-joining cylinder manufacturing apparatus schematically. It is sectional drawing which shows a nanofiber discharge | release means. It is a perspective view which shows a nanofiber discharge | release means. It is a figure which shows another example of a nanofiber discharge | release means. It is a figure which shows schematically the non-joining cylinder manufacturing apparatus which concerns on other embodiment. It is sectional drawing which shows a 1st attraction means and its vicinity. It is sectional drawing which shows a 2nd attracting means and its vicinity.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Non-joint cylinder manufacturing apparatus 110 Deposition means 111 Turntable 120 (120a, 120b) Attraction means 121 Attraction means 122 Connection conduit 123 Attraction electrode 124 Attraction power supply 130 Driving means 131 Arm 190 Peeling means 200 (200a, 200b) Nanofiber emission Means 203 Gas flow generation means 204 Gas flow control means 205 Heating means 206 Guide means 208 Bearing 209 Wind tunnel body 210 Raw material liquid outflow means 211 Outflow body 212 Rotating shaft body 213 Drive source 216 Outflow hole 217 Supply path 220 Raw material liquid charging means 221 Induction Electrode 222 Induction power supply 223 Grounding means 300 Raw material liquid 301 Nanofiber

Claims (2)

A non-bonded cylinder manufacturing apparatus for manufacturing a non-bonded cylinder by electrostatically exploding a raw material liquid as a raw material of nanofibers in a space and depositing the manufactured nanofibers,
Raw material liquid outflow means for flowing out the raw material liquid into the space;
Raw material liquid charging means for charging the raw material liquid;
Deposition means for realizing a three-dimensional shape corresponding to the shape of a desired non-joined cylinder;
Attracting means for attracting nanofibers to the deposition means ,
The non-joined cylinder is an accessory worn on a human body,
The non-joint cylinder manufacturing apparatus , wherein the depositing means has a shape corresponding to a part of a human body . A non-bonded cylinder manufacturing method for manufacturing a non-bonded cylinder by electrostatically exploding a raw material liquid as a raw material of a nanofiber in a space and depositing the manufactured nanofiber,
A measurement process for measuring the subject's body shape;
A molding step of molding the deposition means based on the result obtained in the measurement step;
A raw material liquid outflow process for discharging the raw material liquid into the space;
A raw material liquid charging step for charging the raw material liquid;
An attracting step for attracting the nanofibers produced in the deposition means that realizes a three-dimensional shape corresponding to the shape of the desired non-bonded cylinder;
A driving step of driving the deposition means to change the surface on which the nanofibers are deposited ;
A method for manufacturing a non-joined cylindrical body.

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