JP2003082570A - Method for producing nonwoven fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the lowering of the quality of a nonwoven fabric W by preventing the falling off of an adherend K from the produced nonwoven fabric W and the bonding of the nonwoven fabric fibers Ff in the form of a lump. SOLUTION: The method for the production of a nonwoven fabric W containing an adherend K comprises the supply of the adherend K to be bonded to a nonwoven fabric fiber Ff into the flow of the semi-molten nonwoven fabric fiber Ff extruded from a spinning nozzle 14 and the lamination of the adherend K to the fiber laminate surface 11n together with the nonwoven fabric fiber Ff. In the case of supplying the adherend K into the flow of the nonwoven fabric fiber Ff, an adhesive fiber Fa having high adhesive property compared with the nonwoven fabric fiber Ff in the semi-molten state is supplied into the flow of the nonwoven fabric fiber Ff.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a non-woven fabric containing a member to be adhered such as granular activated carbon.

[0002]

2. Description of the Related Art A general method for manufacturing a non-woven fabric of this type is described in JP-A-63-42956, and a schematic view of an apparatus used for carrying out the method is shown in FIG. . In the method for producing a nonwoven fabric, the nonwoven fabric fiber F spun from the spinning nozzle 52 is made of a mixture of an adhesive polymer and a thermoplastic polymer. The non-woven fiber F spun from the spinning nozzle 52 is in a semi-molten state, and during the flow of the non-melted non-woven fiber F, the granular activated carbon K is discharged from the gutter 56.
Is supplied. Here, the mixing ratio of the adhesive polymer and the thermoplastic polymer is set to a value at which the granular activated carbon K easily adheres to the semi-molten nonwoven fabric fiber F. The semi-molten non-woven fabric fiber F is received by the mesh-like base cloth 54 together with the granular activated carbon K, and by being laminated on the base cloth 54, the granular activated carbon K is obtained.
A nonwoven fabric W containing is produced.

[0003]

However, in the above-mentioned method for producing a non-woven fabric, if the adhesive property of the non-melted non-woven fabric fiber F is increased in order to prevent the granular activated carbon K from falling off from the non-woven fabric W, the fibers are separated from each other. By bonding in a wide range, it becomes a lump, and it becomes difficult to obtain a nonwoven fabric W having a desired bulkiness (thickness dimension). On the other hand, in order to obtain a nonwoven fabric W having a desired bulkiness (thickness dimension), a semi-molten nonwoven fabric fiber F
When the adhesiveness of No. 1 is suppressed, the adhesive force between the granular activated carbon K and the non-woven fabric fiber F is reduced, and the problem that the granular activated carbon K is likely to drop from the non-woven fabric W occurs. The present invention has been made in view of the above problems, and an object thereof is to prevent the adherend member (granular activated carbon) from falling off from the nonwoven fabric and to ensure the quality of the nonwoven fabric itself.

[0004]

The above-mentioned problems can be solved by the inventions of the respective claims. According to the invention of claim 1, a member to be adhered which is adhered to the non-woven fiber is supplied during the flow of the semi-molten non-woven fiber spun from the spinning nozzle, and the member to be adhered is laminated with the non-woven fiber on the fiber laminated surface. A method for manufacturing a non-woven fabric, which comprises laminating a non-woven fabric containing the adherend member, wherein when the adherend member is supplied into the flow of the non-woven fabric, the semi-molten state is more adhesive than the non-woven fabric fiber. The adhesive fiber having high property is supplied into the flow of the non-woven fiber.

According to the present invention, when the member to be adhered is supplied into the flow of the non-melted non-woven fiber, the adhesive fiber having high adhesiveness is supplied into the flow of the non-woven fiber. Therefore, when the adhesive fiber is in a semi-molten state, the adherend member is bonded to the non-woven fabric fiber with a high adhesive force via the adhesive fiber. Therefore, the inconvenience of dropping the adhered member from the manufactured nonwoven fabric is unlikely to occur. Further, since the adhesive fiber works to increase the adhesive force between the non-woven fiber and the member to be adhered, it is not necessary to increase the adhesive property of the non-woven fiber itself so much. That is, the adhesiveness of the non-woven fabric fibers can be suppressed to the minimum necessary to secure the bulkiness of the non-woven fabric. Therefore, the non-woven fabric fibers do not adhere to each other in a lump form, and the quality of the non-woven fabric can be secured. Here, the members to be adhered include not only those having a function of deodorizing or adsorbing gas, such as activated carbon and titanium oxide, but also members having various other functions.

Here, when the adhesive fiber is adhered to the adhered member and then the adhered member and the adhesive fiber are fed into the flow of the semi-molten non-woven fabric, the adhesive property is improved. The member to be adhered is reliably held by the non-woven fabric fiber because the fiber is entangled with the non-woven fabric fiber. Also, as in claim 3,
If the adhesive fiber is supplied into the flow of the semi-melted non-woven fiber and then the adhered member is supplied into the flow of the non-woven fiber and the adhesive fiber, the action of the adhesive fiber that has become semi-melted by heat Thus, the non-woven fabric and the member to be adhered are firmly adhered.

According to a fourth aspect of the present invention, after supplying the adhered member into the flow of the semi-molten adhesive fiber spun from the auxiliary spinning nozzle, the adhesive fiber and the adhered member are semi-melted. Even if it is supplied into the flow of the non-woven fiber in the state, the adherend member can be firmly adhered to the non-woven fiber through the adhesive fiber. Further, it is preferable that the diameter of the adhesive fiber is smaller than the diameter of the non-woven fabric fiber, because the adhesive fiber is easily melted. Further, as in claim 6, by forming the fiber laminated surface with a non-woven fabric, the non-woven fabric containing the adherend member can be laminated on the non-woven fabric.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] Hereinafter, FIGS.
Based on the description, the method for manufacturing the nonwoven fabric according to the first embodiment of the present invention will be described. The present embodiment relates to a method for manufacturing a non-woven fabric as a material for a filter, etc.
FIG. 1A is a schematic diagram showing the manufacturing apparatus of the nonwoven fabric in FIG.
FIG. 1C is a schematic vertical sectional view of the nonwoven fabric manufactured in FIG.
Fig. 1 shows a schematic view of granular activated carbon with fibers used for producing a nonwoven fabric.

The nonwoven fabric W manufactured by the manufacturing method according to the present embodiment has a nonwoven fabric fiber F as shown in FIG. 1 (B).
The granular activated carbon K is arranged almost evenly inside the fiber layer formed by f, and the granular activated carbon K is bonded to the nonwoven fabric fiber Ff. This nonwoven fabric W is used as a material for a filter of an internal combustion engine, for example, and the granular activated carbon K functions to adsorb fuel vapor and the like. That is, the above-mentioned granular activated carbon K corresponds to the adherend member of the present invention. In addition,
In the schematic view of FIG. 1, the granular activated carbon K is illustrated as a square shape so that it can be easily identified, but the actual shape of the granular activated carbon K is not limited to the rectangular shape.

Next, a manufacturing facility 10 for the nonwoven fabric W and a method for manufacturing the nonwoven fabric W using the manufacturing facility 10 will be described with reference to FIG. Nonwoven fabric manufacturing equipment 10
Includes a horizontally extending conveyor 11, and a belt-shaped base cloth 11n is horizontally attached to the conveyor 11. The following description will be made assuming that the traveling direction of the conveyor 11 is the Y direction. The base fabric 11n is a first spinning nozzle 1 described later.
4 is a breathable stainless mesh for receiving the semi-molten non-woven fiber Ff spun from
Drive the laminated non-woven fiber Ff to Y
Transport in the direction. That is, the base fabric 11n corresponds to the fiber laminated surface of the present invention.

Above the base cloth 11n of the conveyor 11, a first spinning nozzle 14 is installed downward at a certain height from the base cloth 11n. The first spinning nozzle 14 is, for example, a spinning nozzle utilizing a melt blow method, and blows hot air from the hot air jet port 14a to the molten resin jetted from the central resin jet port 14b to spin out the nonwoven fabric fiber Ff. . At this time, the extrusion amount of the molten resin, the flow rate of the hot air, etc. are set so that the fiber diameter is about 30 μm.

The non-woven fabric fiber Ff spun out from the first spinning nozzle 14 is blown off by hot air and laminated on the base fabric 11n in a semi-molten state. Then, the non-woven fabric fibers Ff are brought into contact with each other to be fused at the contact points, and the layer of the non-woven fabric fibers Ff becomes the non-woven fabric W. As the material of the non-woven fiber Ff, for example, a thermoplastic resin such as polypropylene, PET, PA, polyester, polyamide, or olefin is used. It is also possible to use a spun bond method or a nozzle that uses a method capable of spinning a semi-molten fiber as the first spinning nozzle 14.

An activated carbon supply device 20 is installed on the upstream side (left side in the figure) of the conveyor of the first spinning nozzle 14. The activated carbon supply device 20 uses the granular activated carbon K, F with fibers in the flow of the nonwoven fabric fibers Ff spun from the first spinning nozzle 14.
It is a device for supplying a and is composed of a hopper 22 and a gutter 24. The hopper 22 is an open container that stores the granular activated carbon K and Fa with fibers, and has a supply port 22h at the lower end. A valve (not shown) is attached to the supply port 22h, and when the valve is opened, a substantially constant amount of fiber-containing granular activated carbon K, Fa is continuously supplied from the supply port 22h to the gutter 24. .

The gutter 24 is a granular activated carbon K, Fa with fibers in the flow of the nonwoven fabric fibers Ff spun from the spinning nozzle 14.
Is a member having a U-shaped cross-section for continuously supplying the fibrous activated carbon K and Fa with a uniform density to the non-woven fiber Ff. .

The granular activated carbons K and Fa with fibers are shown in FIG.
As shown in (C), an adhesive fiber Fa (having a fiber diameter of approximately 1 mm) having a length approximately the same as that of the granular activated carbon K is used.
20 μm) is adhered. In this way, since the length of the adhesive fiber Fa is set to be substantially the same as the length of the granular activated carbon K, the adhesive fibers Fa are unlikely to be entangled with each other, and the granular activated carbon with fibers K and Fa are aggregated in the hopper 22. Hard to become.

The granular activated carbons K and Fa with fibers are, for example,
It is manufactured by the following procedure. First, a plurality of adhesive fibers Fa having a predetermined length are cut into a bundle of about 1 mm, and the finely cut adhesive fibers Fa are stored in a container (not shown). Next, the granular activated carbon K heated to a temperature higher than the melting point of the adhesive fiber Fa is uniformly mixed with the adhesive fiber Fa in the container. As a result, the adhesive fiber Fa is welded to the granular activated carbon K, as shown in FIG.
Granular activated carbon K, Fa with fibers shown in (C) is formed.

The adhesive fiber Fa is a fiber having a higher adhesiveness than the non-woven fiber Ff in the semi-molten state, and its material is
For example, modified polyethylene, low-melting point PET, or other polyester-based or polyamide-based adhesive thermoplastic resin is used. The adhesive fiber Fa has higher adhesiveness than the non-woven fiber Ff in the semi-molten state, but has no particular difference in characteristics from the non-woven fiber Ff in the completely solidified state.

Next, a method of manufacturing the nonwoven fabric W according to this embodiment will be described. First, while the conveyor 11 is being driven, the semi-molten nonwoven fabric fibers Ff are spun out from the first spinning nozzle 14 to the base fabric 11n of the conveyor 11 (see the dotted line in the figure). Then, the supply port 22h of the hopper 22 is opened, and the granular activated carbon K or Fa with fibers is supplied from the gutter 24 of the activated carbon supply device 20 into the flow of the nonwoven fabric fibers Ff. The granular granular activated carbon K, Fa supplied in the flow of the non-woven fiber Ff is dispersed by the hot air that blows off the non-woven fiber Ff, mixed with the plurality of non-woven fibers Ff, and further pressed onto the non-woven fiber Ff by the pressure of the hot air.

At this time, the adhesive fiber Fa adhered to the granular activated carbon K is melted by the hot air and the heat of the non-woven fabric fiber Ff, and the molten activated adhesive fiber Fa serves to activate the granular activated carbon K.
And the non-woven fabric fiber Ff have higher adhesive strength. Further, the activated carbon K is reliably held by the non-woven fiber Ff because the adhesive fiber Fa and the non-woven fiber Ff are entangled with each other. And
Semi-molten non-woven fiber Ff to which granular activated carbon K is adhered
Are laminated on the base fabric 11n of the conveyor 11, and the laminated nonwoven fabric fibers Ff contact each other, so that the contact points are fused. As a result, as shown in FIG. 1 (B), the nonwoven fabric W in which the granular activated carbon K is substantially evenly arranged inside the fiber layer is formed on the base fabric 11n. As described above, since the base cloth 11n is moved in the Y direction by the conveyor 11, the formed nonwoven fabric W is continuously conveyed in the Y direction.

As described above, in the method for manufacturing the nonwoven fabric according to this embodiment, the adhesive fiber Fa having a length substantially equal to that of the granular activated carbon K is adhered to the granular activated carbon K, and then the granular activated carbon K is used.
Since the adhesive fiber Fa is supplied into the flow of the semi-molten non-woven fabric fiber Ff, the adhesive fiber Fa serves to increase the adhesive force between the non-woven fabric fiber Ff and the granular activated carbon K. Therefore, the trouble that the granular activated carbon K falls off from the manufactured nonwoven fabric W does not occur. Moreover, since the adhesive fiber Fa enhances the adhesive force between the non-woven fiber Ff and the granular activated carbon K, it is not necessary to increase the adhesive property of the non-woven fiber Ff itself. That is, the adhesiveness of the nonwoven fabric fibers Ff can be suppressed to the minimum necessary to secure the bulkiness of the nonwoven fabric W. Therefore, the non-woven fabric fibers Ff are not bonded to each other in a wide range to form a lump, and the quality of the non-woven fabric W can be secured.

Here, in the present embodiment, an example in which the granular activated carbon K is supplied into the flow of the semi-molten non-woven fiber Ff is shown, but titanium oxide or the like may be used instead of the granular activated carbon K. . In addition, in the present embodiment, an example in which the first spinning nozzle 14 and the activated carbon supply device 20 are used to form the nonwoven fabric W in which the granular activated carbon K is substantially evenly arranged inside is shown, but as shown in FIG. The first spinning nozzle 1
If the second spinning nozzle 15 is installed on the upstream side of the conveyor of No. 4 and the third spinning nozzle 16 is installed on the downstream side of the conveyor of the first spinning nozzle 14, the non-woven fabric Wt having a three-layer structure can be formed.

That is, the second spinning nozzle 1 on the upstream side of the conveyor.
5, the non-woven fabric W1 (lower layer W1) is laminated on the base fabric 11n, and the non-woven fabric W2 (intermediate layer W2) having the granular activated carbon K is laminated on the lower layer W1 by the first spinning nozzle 14 and the activated carbon supply device 20. When the nonwoven fabric W3 (surface layer W3) is laminated on the intermediate layer W2 by the third spinning nozzle 16 on the downstream side of the conveyor, the nonwoven fabric Wt having a three-layer structure can be formed. As described above, the non-woven fabric Wt having a three-layer structure makes it more difficult for the granular activated carbon K inside to fall off.

[Embodiment 2] A method for manufacturing a nonwoven fabric according to Embodiment 2 of the present invention will be described below with reference to FIG. The method for producing a nonwoven fabric according to the present embodiment supplies granular activated carbon K and adhesive fibers Fa separately into the flow of the nonwoven fabric fibers Ff, and other steps are the same as the method for producing a nonwoven fabric according to the first embodiment. Is. Therefore, the non-woven fabric manufacturing equipment 30 used in the present embodiment is different from the non-woven fabric manufacturing equipment 10 of the first embodiment only in the supply structure of the granular activated carbon K and the adhesive fiber Fa, and the other structures are the same. is there. Therefore, the same devices as those of the nonwoven fabric manufacturing facility 10 of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The non-woven fabric manufacturing facility 30 of this embodiment has a fiber feeding device 26 downstream of the first spinning nozzle 14 on the conveyor side.
Is installed. The fiber supply device 26 is a device for supplying the adhesive fiber Fa finely cut into the flow of the non-woven fiber Ff spun from the first spinning nozzle 14, and is composed of a fiber hopper 28 and a fiber gutter 27. There is. The fiber hopper 28 is an upper open container that stores the adhesive fibers Fa cut into about 1 mm and having a fiber diameter of about 20 μm, and has a supply port 28h at the lower end. A valve (not shown) is attached to the supply port 28h, and when the valve is opened, a substantially constant amount of the adhesive fiber Fa is continuously supplied from the supply port 28h to the fiber gutter 27.

The fiber gutter 27 is an adhesive fiber F cut in the flow of the non-woven fiber Ff spun from the spinning nozzle 14.
It is a member for continuously supplying a, and the inclination of the gutter 24 is set so that the adhesive fibers Fa can be supplied at a substantially uniform density during the flow of the nonwoven fabric fibers Ff.

Next, a method for manufacturing the nonwoven fabric W according to this embodiment will be described. First, while the conveyor 11 is being driven, the semi-molten nonwoven fabric fibers Ff are spun out from the first spinning nozzle 14 to the base fabric 11n of the conveyor 11 (see the dotted line in the figure). Next, the supply port 28h of the fiber hopper 28 of the fiber supply device 26 is opened, and the finely cut adhesive fiber Fa is woven by the fiber gutter 27.
is supplied in the stream of f. The adhesive fiber Fa supplied in the flow of the non-woven fabric fiber Ff is dispersed by the hot air blowing the non-woven fabric fiber Ff and mixed with the plurality of non-woven fabric fibers Ff, and is further pressed and melted by the pressure of the hot air.

Next, the hopper 22 of the activated carbon supply device 20.
The supply port 22h is opened, and the granular activated carbon K is supplied by the gutter 24 into the flow of the non-woven fabric fiber Ff and the adhesive fiber Fa. The granular activated carbon K supplied in the flow of the non-woven fabric fibers Ff and the like is dispersed by the hot air blowing the non-woven fabric fibers Ff, mixed with the plurality of non-woven fabric fibers Ff, and pressed against the non-woven fabric fibers Ff by the pressure of the hot air. At this time, since the adhesive fiber Fa is adhered to the non-woven fabric fiber Ff in a semi-molten state, the granular activated carbon K pressed against the non-woven fabric fiber Ff is reliably adhered to the non-woven fabric fiber Ff by the action of the adhesive fiber Fa. .

Then, the non-melted non-woven fabric fiber Ff to which the granular activated carbon K is adhered is laminated on the base fabric 11n of the conveyor 11 to form a non-woven fabric W in which the granular activated carbon K is arranged substantially evenly inside the fiber layer. To be done. In this way, since the non-woven fabric fiber Ff and the granular activated carbon K are reliably adhered by the action of the adhesive fiber Fa, there is no trouble that the granular activated carbon K falls off from the manufactured non-woven fabric W. Further, since the step of previously adhering the finely cut adhesive fiber Fa to the granular activated carbon K is unnecessary, the manufacturing cost of the nonwoven fabric W can be reduced as compared with the case of the first embodiment.

[Embodiment 3] Hereinafter, a method for manufacturing a nonwoven fabric according to Embodiment 3 of the present invention will be described with reference to FIG. The method for manufacturing the nonwoven fabric according to the present embodiment is a modification of the method of supplying the granular activated carbon K and the adhesive fiber Fa into the flow of the nonwoven fabric fiber Ff, and the other methods are the method for manufacturing the nonwoven fabric according to the first embodiment. The method is similar. For this reason,
The non-woven fabric manufacturing equipment 40 used in this embodiment is different from the non-woven fabric manufacturing equipment 10 of the first embodiment only in the supply structure of the granular activated carbon K and the adhesive fiber Fa, and the other structures are the same. Therefore, the same devices as those of the nonwoven fabric manufacturing facility 10 of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the non-woven fabric manufacturing facility 40 of this embodiment, as shown in FIG. 4, the first spinning nozzle 14 is inclined so that the non-woven fabric fiber Ff can be spun in an oblique direction with respect to the base fabric 11n of the conveyor 11. It is installed in the state. Further, on the upstream side of the first spinning nozzle 14 from the conveyor, the second spinning nozzle 44 is provided so that the adhesive fiber Fa can be spun from above during the flow of the nonwoven fabric fiber Ff spun from the first spinning nozzle 14. Is installed facing down. Further, on the upstream side of the conveyor of the second spinning nozzle 44, the second spinning nozzle 4
An activated carbon supply device 20 for supplying granular activated carbon K into the flow of the adhesive fiber Fa spun from No. 4 is installed. That is, the second spinning nozzle 44 corresponds to the auxiliary spinning nozzle of the present invention.

Next, a method for manufacturing the nonwoven fabric W according to this embodiment will be described. First, while the conveyor 11 is being driven, the semi-melted non-woven fabric fiber Ff is spun out obliquely from the first spinning nozzle 14 with respect to the base fabric 11n of the conveyor 11. Next, the semi-molten adhesive fiber Fa is spun out from the second spinning nozzle 44, and the adhesive fiber Fa spun from the first spinning nozzle 14 is a nonwoven fabric fiber F.
is supplied in the stream of f. Here, the first spinning nozzle 14 and the second spinning nozzle 44 are adjusted so that the non-woven fiber Ff has a fiber diameter of about 30 μm and the adhesive fiber Fa has a fiber diameter of about 20 μm.
The amount of molten resin extruded, the flow rate of hot air, and the like are set.

Next, the hopper 22 of the activated carbon supply device 20.
22h is opened, and the granular activated carbon K is supplied by the gutter 24 into the flow of the adhesive fiber Fa. Adhesive fiber F
The granular activated carbon K supplied in the flow of a is dispersed by the hot air that blows off the adhesive fibers Fa and mixed with the plurality of adhesive fibers Fa, and the adhesive fibers Fa by the pressure of the hot air are mixed.
It is pressed against and glued. Then, the granular activated carbon K adhered to the adhesive fiber Fa is supplied together with the adhesive fiber Fa into the flow of the nonwoven fabric fiber Ff spun from the first spinning nozzle 14.

As described above, the granular activated carbon K and the adhesive fiber Fa supplied in the flow of the non-woven fabric fiber Ff are mixed with the semi-molten non-woven fabric fiber Ff and pressed against the non-woven fabric fiber Ff by the pressure of hot air. . As a result, the granular activated carbon K is reliably bonded to the non-woven fabric fiber Ff via the adhesive fiber Fa.

Then, the non-melted non-woven fabric fiber Ff to which the granular activated carbon K is adhered is laminated on the base fabric 11n of the conveyor 11 to form a non-woven fabric W in which the granular activated carbon K is arranged substantially evenly inside the fiber layer. To be done. In this way, the adhesive fiber Fa serves to increase the adhesive force between the non-woven fabric fiber Ff and the granular activated carbon K, so that the granular activated carbon K does not fall off from the produced non-woven fabric W. Further, since the step of finely cutting the adhesive fiber Fa having the predetermined length is unnecessary, the manufacturing cost of the nonwoven fabric W can be reduced as compared with the case of the second embodiment.

In the first to third embodiments, the fiber diameter is set to about 20 μm so that the adhesive fiber Fa is easily melted. However, the fiber diameter is about the same as the non-woven fiber Ff (about 30 μm). It is also possible to set to. Further, the non-woven fabric fiber Fa and the granular activated carbon K are used as the base fabric 11 of the conveyor 11.
Although an example of stacking on n is shown, it is also possible to set a wire mesh formed in the shape of a filter on the conveyor 11 and stack the non-woven fiber Fa on the wire mesh. This makes it possible to form a filter-shaped nonwoven fabric. Further, although an example in which granular activated carbon K having a deodorizing function, titanium oxide, or the like is used as the adhered member has been shown, the material of the adhered member includes members having various functions.

[0036]

According to the present invention, the adhesive fiber serves to increase the adhesive force between the non-woven fabric fiber and the member to be adhered, so that the member to be adhered is less likely to fall out of the manufactured nonwoven fabric. Also,
Since the adhesiveness of the non-woven fibers can be suppressed to the minimum necessary to secure the bulkiness of the non-woven fabric, the quality of the non-woven fabric can be ensured.

[Brief description of drawings]

FIG. 1 is a schematic view of a manufacturing apparatus used in the method for manufacturing a nonwoven fabric according to Embodiment 1 of the present invention (FIG. A), a schematic cross-sectional view of the manufactured nonwoven fabric (FIG. B), and used for manufacturing the nonwoven fabric. It is a schematic diagram (C figure) of the granular activated carbon with a fiber.

FIG. 2 is a schematic diagram showing a modified example of a method for manufacturing a nonwoven fabric.

FIG. 3 is a schematic view of a manufacturing apparatus used in the method for manufacturing a nonwoven fabric according to the second embodiment of the present invention.

FIG. 4 is a schematic view of a manufacturing apparatus used in the method for manufacturing a nonwoven fabric according to the third embodiment of the present invention.

FIG. 5 is a perspective view of a manufacturing apparatus used in a conventional method for manufacturing a nonwoven fabric.

[Explanation of symbols]

W non-woven W1 non-woven fabric (lower layer) W2 non-woven fabric (middle layer) W3 non-woven fabric (upper layer) Wt three-layer non-woven fabric Ff non-woven fiber Fa adhesive fiber K Granular activated carbon (adhered material) 11 conveyor 11n Base cloth (fiber laminated surface) 14 First spinning nozzle 20 Activated carbon supply device 24 gutter 26 Fiber feeding device 27 fiber gutter 44 Second spinning nozzle (auxiliary spinning nozzle)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yukinobu Wakayama             1-1, Toyota-cho, Kariya city, Aichi             Ori Co., Ltd. F-term (reference) 4L047 AA14 AA21 AA23 AA29 AB04                       AB07 BA09 BB01 BB06 BB07                       CA05 CB10 CC12

Claims (6)

[Claims] 1. A member to be adhered which is adhered to a nonwoven fabric fiber in a semi-molten state spun out from a spinning nozzle is supplied, and the member to be adhered is laminated on the fiber laminating surface together with the nonwoven fabric fiber. A method of manufacturing a non-woven fabric for producing a non-woven fabric containing the adherend member, wherein when the adherend member is supplied into the flow of the non-woven fabric, the adhesive property is higher than that of the non-woven fabric fiber in a semi-molten state. A method for producing a non-woven fabric, which comprises supplying highly adhesive fibers into the flow of the non-woven fabric fibers. 2. The method for producing a non-woven fabric according to claim 1, wherein after the adhesive fiber is adhered to the adhered member, the adhered member and the adhesive fiber are supplied into the flow of the semi-molten non-woven fabric fiber. A method for producing a non-woven fabric, comprising: 3. The method for producing a non-woven fabric according to claim 1, wherein after the adhesive fiber is supplied into the flow of the semi-melted non-woven fabric fiber, the adherend is adhered to the flow of the non-woven fabric fiber and the adhesive fiber. A method for producing a non-woven fabric, which comprises supplying a member. 4. The method for producing a non-woven fabric according to claim 1, wherein the adherend member is fed into the flow of the semi-molten adhesive fiber spun from the auxiliary spinning nozzle, and the adhesive fiber and A method for manufacturing a non-woven fabric, which comprises supplying a member to be adhered into a flow of semi-molten non-woven fabric fibers. 5. The method for producing a non-woven fabric according to claim 1, wherein the diameter of the adhesive fiber is smaller than that of the non-woven fiber. Method. 6. The method for producing a non-woven fabric according to claim 1, wherein the fiber laminated surface is made of a non-woven fabric.