JP2003345094A - Functional flocked roller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constitute a functional roller and a charge roller which are used for an electrophotographic device so as to allow a uniform operation inexpensively. <P>SOLUTION: Conductive functional fiber 24 is flocked on the surface of metallic core material 21 by the use of an electrostatic flocking method and a flocked layer 22 is formed. The surface side thereof is formed as the flocked layer 22 which is easily deflected and, therefore, when used as a toner supply roller for supplying toner to a development roller of the electrophotographic device, satisfactory contact state can be obtained. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a functional flocking roller that can be used as various rollers in an image forming apparatus such as an electrophotographic copying machine or a printer.

[0002]

2. Description of the Related Art FIG. 8 shows a basic structure of a conventional electrophotographic system. An electrophotographic apparatus 1 has a photosensitive drum 2 formed by coating an optical semiconductor on the surface thereof. An electrophotographic image is formed on the surface of the. Prior to image formation, the surface of the photosensitive drum 2 is charged by the charging roller 3
Are uniformly charged by. The surface of the uniformly charged photosensitive drum 2 is irradiated with light corresponding to an image to be formed by the optical system 4. The optical semiconductor coated on the surface of the photosensitive drum 2 becomes conductive depending on the intensity of the light emitted. Therefore, by irradiating the surface of the photosensitive drum 2 with light having an intensity corresponding to the image to be formed from the optical system 4, an electrostatic latent image can be formed on the surface of the photosensitive drum 2.

Toner is supplied from the developing device 5 to the electrostatic latent image formed on the surface of the photosensitive drum 2, and a toner image corresponding to the electrostatic latent image is obtained. The toner is a thermoplastic particle containing a pigment and is transferred onto the surface of the sheet material 6 such as paper while the sheet material 6 is sandwiched between the photosensitive drum 2 and the transfer roller 7 and conveyed. The toner image transferred to the surface of the sheet material 6 is heated and pressed by the fixing device 8,
The toner is melted and adhered to the surface of the sheet material 6, and is fixed as an image. After the toner image is transferred onto the sheet material 6, the surface of the photosensitive drum 2 is cleaned by the cleaner 9, and the charging roller 3 performs uniform charging again. In this way, while the photosensitive drum 2 rotates, an image of toner is formed on the surface of the photosensitive drum 2, and the image is transferred and fixed on the sheet material 6. The charging roller 3 has a high voltage source 1
A high voltage of 0 to several 100V is applied.

The developing device 5 is provided with a developing roller 5a, and transfers the toner to the surface of the photosensitive drum 2 by a contact method or a non-contact method. The toner is stored inside the developing device 5, and is supplied to the developing roller 5a by the toner supply roller 5b.
To the outer peripheral surface of. The cleaning roller 9a may also be used for the cleaner 9. As described above, in the electrophotographic apparatus 1, many functional rollers are used. These functional rollers generally have a structure in which the surface is covered with a rubber material.

FIG. 9 shows an example of the functional roller shown in FIG.
The structure of the charging roller 3 shown in FIG. The surface of the conductive metallic core material 11 is covered with the conductive rubber layer 12, and the surface coat layer 13 is further formed on the surface of the rubber layer 12. If a hard metal or the like is brought into direct contact with the surface of the photosensitive drum 2, the optical semiconductor layer on the surface may be damaged. Therefore, the rubber layer 12 is used. As the rubber material used for the rubber layer 12, a material having appropriate elasticity and conductivity is used. A surface coat layer 13 is formed on the surface of the rubber layer 12 so that toner or the like does not adhere thereto. When toner or the like adheres to the surface of the charging roller 3, the surface of the photosensitive drum 2 is soiled with the toner, and the soil is transferred to the sheet material 6,
The quality of the formed image is degraded.

[0006]

The charging roller 3 as shown in FIG. 9 needs to have an electrical resistance of about 10 ⁶ Ωcm. It is difficult to adjust the rubber layer 12 so as to obtain an appropriate electric resistance. Especially silicone rubber
It cannot be used because the plasticizer contaminates the photosensitive drum 2. The rubber layer 12 as shown in FIG. 9 has a thickness of several mm.
Although it has a cylindrical shape of about 10 to several mm, when manufacturing, a block-shaped raw material is manufactured by cutting. Therefore, the material cost and the processing cost increase. Also, the hardness of the rubber layer 12 is preferably as soft as about 10 degrees according to JIS A, but in order to obtain such soft hardness, it is necessary to use a sponge that is foamed. However, since fine irregularities are generated on the surface of the sponge, it is difficult to uniformly charge the sponge, and fine uneven density is likely to occur in the image.

Other functional rollers of the charging roller 3 such as the toner supply roller 5b and the cleaning roller 9a used in the electrophotographic apparatus 1 as shown in FIG. 8 have the same structure as that of the outer peripheral surface covered with the rubber layer. Have the problem of. An object of the present invention is to provide, as a functional roller for an electrophotographic apparatus or the like, a functional flocking roller which is inexpensive and can produce an action excellent in uniformity.

[0008]

SUMMARY OF THE INVENTION The present invention comprises a roll-shaped core material and one or more functional fibers that are cut to a predetermined length and adhere to the outer peripheral surface of the core material so as to have a predetermined density. It is a functional flocking roller characterized by including.

According to the present invention, one or a plurality of functional fibers cut into a predetermined length are adhered to the outer peripheral surface of the roll-shaped core material so as to have a predetermined density. When acting as a roll, the tips of the functional fibers come into contact with the object and can be easily deformed according to the surface shape of the object. Since it is possible to realize a uniform contact state, it is possible to produce an operation with excellent uniformity. The contact pressure can be lowered by increasing the length of the functional fiber, and the contact pressure can be increased by decreasing the length. Attaching one or more functional fibers to the outer peripheral surface of the core material can be performed at a lower cost than forming a rubber layer or the like on the outer peripheral surface.

Further, in the present invention, the functional fiber is flocked and attached to the outer peripheral surface of the core material by an electrostatic flocking method, and the core material is made of metal, insulating resin, conductive resin, or paper. It is characterized by using either one as a material.

According to the present invention, the functional fibers are flocked and attached by the electrostatic flocking method to the outer peripheral surface of the core material made of metal, insulating resin, conductive resin, or paper.
A functional flocking roller can be obtained easily and inexpensively.

Further, in the invention, the functional fiber is a yarn produced by a composite spinning method.

According to the present invention, the functional fiber is produced by the composite spinning method in which plural kinds of polymers are simultaneously spun from one hole, so that the characteristic of each polymer can be utilized to make the functional fiber.

Further, in the invention, the functional fiber is a yarn produced by a kneading and spinning method.

According to the present invention, since the functional fiber is produced by the spinning method in which the material imparting the characteristic at the spinning stage is kneaded, the desired characteristic can be easily imparted to the functional fiber.

Further, in the present invention, the predetermined length of the functional fiber is in the range of 0.5 mm or more and 3 mm or less.

According to the invention, the filament length is 0.5 m.
Since it is in the range of m to 3 mm, a uniform contact state can be easily obtained as various functional rollers of an electrophotographic apparatus.

Further, in the present invention, the single fiber decitex of the functional fiber is in the range of 1 decitex or more and 10 decitex or less.

According to the present invention, as the functional fiber, a single yarn having a linear density in the range of 1 decitex (dtex) to 10 decitex (dtex) by the tex system defined by Japanese Industrial Standard (JIS) L0101. As a result, various functional rollers of an electrophotographic apparatus can easily obtain a uniform contact state. Further, in the invention, the functional fiber is electrically conductive and electrically conductive with the core material.

According to the present invention, since the functional fiber is electrically conductive and electrically conductive with the core material, it is possible to cause the object with which the tip of the functional fiber contacts to perform an electrical action. Further, in the present invention, the functional fiber has a single yarn resistance value of 10 or less.
It is characterized in that it is in the range of ⁵ Ω / cm or more and 10 ¹² Ω / cm or less.

According to the present invention, the single yarn resistance value is 10 ⁵ Ω /
Since it is in the range of not less than 10 cm and not more than 10 ¹² Ω / cm, it is possible to appropriately perform the electrostatic action as a functional roller used in an electrophotographic apparatus.

Further, in the invention, the functional fiber includes an electrically insulating functional fiber and a conductive functional fiber.

According to the present invention, since the functional fiber includes the electrically insulating functional fiber and the electrically conductive functional fiber, the conductivity can be adjusted by adjusting the mixing ratio.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a schematic structure of a functional flocking roller 20 according to an embodiment of the present invention. Figure 1
FIG. 1A shows a front cross-sectional view, and FIG. 1B shows a side cross-sectional view. The core material 21 is electrically conductive by a roller made of metal such as iron, and is supported so that both ends can rotate. A flocked layer 22 formed by an electrostatic flocking method is formed on the surface of the core material 21. The flocked layer 22 is the adhesive layer 2
In 3, the base end side of many functional fibers 24 is formed by adhering to the surface of the core material 21.

FIG. 2 shows the principle of forming the flocked layer 22 by the electrostatic flocking method. For example, when the flocked layer 22 generates a radial electric field around the core material 21 and adsorbs the functional fiber 24 cut into a certain length, the flocked layer 22 radially extends around the core material 21 along the electric field. The functional fiber 24 can be attached. If an adhesive is applied to the surface of the core material 21, the adsorbed functional fibers 24 can be attached to the surface of the core material 21, and the flocked layer 22 can be easily formed.

That is, using the functional fibers 24 cut into a predetermined length, the functional fibers 24 are flocked to the roller-shaped core member 21 by the electrostatic flocking method while rotating the core member 21 around the axis. . The functional fiber 24 can be flocked to the core material 21 regardless of whether it is an electrically insulating material or an electrically conductive material, and is bonded to the core material 21 with an insulating adhesive or a conductive adhesive. Is used to bond the functional fiber 24 and the core material 21. As the adhesive, there are water-based acrylic emulsion adhesives, urethane adhesives, and polyester hot-melt adhesives. In order to have conductivity, a conductive substance such as silver paste is kneaded into the adhesive. Keep it complicated.

When the functional flocking roller 20 of FIG. 1 is used as a charging roller, a toner supply roller, a cleaning roller or the like of an electrophotographic apparatus, it is preferable that the functional fibers 24 have conductivity. Especially when used as a charging roller, conductivity is required. If you need conductivity,
The functional fibers 24 forming the flocked layer 22 can be used, for example, by imparting conductivity to nylon fibers or acrylic fibers. For example, when used as the toner supply roller 5b shown in FIG. 8, the speed ratio θ between the peripheral speed of the toner supply roller 5b and the peripheral speed of the developing roller 5a is set to 0.5 to 2.0. Even if the functional fiber 24 needs conductivity, the conductivity can be adjusted by combining a conductive thread and an electrically insulating thread and changing the ratio.

3 and 4 show examples of conductive fibers that can be used as the functional fiber 24 having conductivity. The name of the manufacturer is abbreviated as the manufacturer name. In the chart, "P
“ET” indicates polyethylene terephthalate fiber.
"Ny" indicates a nylon fiber. “An” indicates an acrylic fiber. "R" indicates rayon fiber.
“Ar” indicates an aromatic amide fiber. "G" indicates a glass fiber. "CB" indicates carbon black. "M" indicates an intermetallic compound. “FY” indicates a long fiber. "SF" indicates short fiber. The denominator of fineness indicates the number of filaments.

The composite spinning, which is also called conjugate spinning, is a spinning for the purpose of simultaneously spinning two or more kinds of polymers having different physical properties from one hole to produce a fiber making the best use of each characteristic. Is the method. The kneading and spinning is a spinning method in which a specific substance is kneaded in a spinning step, and a conductive agent such as carbon black can be kneaded in producing a conductive fiber. The dispersion type is a material in which a conductive agent is dispersed and spun.

The functional fiber 24 of this embodiment is shown in FIG.
“Mega III” shown in can be preferably used. Only one type of functional fiber 24 can be used, or a plurality of types can be used. Table 1 below shows an example of physical properties when the trade name “Mega III” is used as the functional fiber 24.

[0031]

[Table 1]

FIG. 5 schematically shows a sectional structure when the type T-2 shown in Table 1 is used as the functional fiber 24.
A layer of conductive carbon fine particles 26 is formed around the core fiber 25. Such a structure can be formed by a composite spinning method, as also shown in FIG. Further, when the electrostatic flocking method as shown in FIG. 2 is used, a fiber having a conductive surface and an electrically insulating inside is more likely to fly.

Although the flocking roller has been conventionally manufactured by using a flocking technique, there are few materials having functionalities such as conductivity, and the method of use is limited. For example, in a conductive fiber manufactured by a conventional composite spinning method, an electrically insulating portion and a conductive portion are clearly separated on the surface of the fiber to form a single fiber. In such a structure, an electric field is electrostatically formed on the surface of the fiber, and the adhesive force due to the electric field increases. In addition, the exposed portion of the insulating portion on the surface of the fiber is large, and it is in a state in which electric charge is difficult to escape. Due to such an increase in adhesive force and residual electric charge, clogging is likely to occur, and it is necessary to deal with clogging spinning. Also,
In order to reduce the electric field on the surface, it is also used to coat the insulating fibers with a conductive coating material and then use the fibers for flocking. However, the use of this conductive coating material is not effective in an apparatus for which long life is required because it causes peeling due to abrasion, and needs improvement. In addition, when the fibers are jetted by an electric field to implant hair on the roller, the fibers are also affected by the electrical characteristics and cross-sectional shape of the fibers. If the electrical resistance value is too low, it becomes difficult to fly and the hair implant density decreases. There is a problem that will occur.

In the present embodiment, in order to improve these problems, as an improvement from the fiber itself, a fiber as shown in Table 1 in which the portion exposed on the surface by the composite spinning is made of an electric conductor is used. A fiber having an exposed portion of 50% or less is used. It is also possible to use fibers in which carbon black is uniformly dispersed or kneaded so that the resistance value of the fibers becomes a predetermined value. Even with low resistance fibers, the surface of the fibers can be treated so that they can fly easily and the flock density can be stabilized. When a thin film is formed on the surface of the fiber as a treatment, the flocking after the film formation can be performed, and the film can be removed by the post-treatment to stabilize the flocked density.

The functional flocking roller 20 of this embodiment is used.
If the surface is composed of the functional fibers 24, and the functional fibers 24 are flocked to the core material 21 by the electrostatic flocking method,
The material of the core member 21 may be made of not only metal but also resin (insulating resin or conductive resin) or paper.
Hereinafter, conditions suitable for using the functional flocking roller 20 as a toner supply roller will be described.

The length of the functional fiber 24 is 0.5 mm.
With the above, the range can be set to 3 mm or less. The characteristics of the flocked layer 22 are such that the longer the fibers, the coarser the flocked level per unit area, and the shorter the fibers, the denser the flocked level. The reason for this is that when the electrostatic flocking method as shown in FIG. 2 is adopted, the fibers are electrically blown. The reason why the fibers adhere perpendicularly to the outer peripheral surface of the core material 21 is that the fibers tend to adhere in the fiber state in which the electric field is the strongest. When the fibers are long, the fibers are likely to be entangled with each other when they are moved by an electric field, and it is difficult for the fibers to be attached vertically, so that the density is lowered.
For example, as a result of a conventional evaluation of a toner supply roller in an actual machine, it has been found that when the length is about 2 mm, the toner supply property starts to decrease due to a decrease in the vertical fiber density. When the length of the fibers is 3 mm, the fibers are entangled with each other to be in a coarse state, and the flocked layer 22 itself has a level of flocking that can be seen through, and it is almost impossible to supply the toner. When the length of the fiber is smaller than 0.5 mm, the flocked layer 22 becomes too dense and the surface is hardened, which makes it difficult to obtain elasticity, increases the torque, or lacks the margin for mechanical accuracy. Will end up.

The single yarn resistance value of the functional fiber 24 is 10 ⁵ Ω /
The range of cm to 10 ¹² Ω / cm is preferable. Regarding the resistance value, when it becomes larger than 10 ¹² Ω / cm, the functional fiber 2
The electric charge remains on the toner 4 and the toner is apt to adhere to it, which easily causes clogging and torque increase. If the resistance value is too high, triboelectric charging is likely to occur, the charge amount of the toner is increased, and the adhesive force to the functional fiber 24 is increased to easily cause clogging. Then, the insulating property of the functional flocking roller 20 itself becomes high, and it becomes difficult to supply the toner by the electric field.
Further, when the resistance value becomes low, the voltage applied to the developing roller (developing bias) is affected, so that the resistance value which is too low becomes a problem.

The single yarn decitex of the functional fiber 24 is preferably in the range of 1 decitex to 10 decitex. The decitex value is 1/10 of the tex value (tex: g / km), which is the weight of the fiber per unit length. When the decitex value increases, the wire diameter also becomes thicker, the rigidity is stronger, and the line to the developing roller becomes stronger. Filming is likely to occur, and image defects are likely to occur. Further, when the decitex value becomes small, the wire diameter becomes small, the reset effect of the toner on the developing roller by the toner supply roller is weakened, and the developing ghost phenomenon, which is the unevenness of the developing roller cycle, easily occurs. Therefore, it is necessary to set the wire diameter and the amount of bite into the developing roller according to the material.

From the experience of the inventor of the present invention, 1.5
Denier (1.67 dtex) has a fiber length of 0.7
It has been found that mm to 1.5 mm is the usable area. At 7 denier (7.78 decitex),
It has been found that the usable range is from a fiber length of 1.2 mm to around 2.0 mm.

The functional flocking roller 20 can also be used for applications that do not require conductivity. Flocked layer 22
Since the contact state can be adjusted by the density of, it can be suitably used as a cleaning roller in an electrophotographic apparatus. When conductivity is unnecessary, electrically insulating fibers may be used as the functional fibers 24.

FIG. 6 shows another embodiment of the present invention.
The schematic structure of the charging roller 40 formed using the functional flocking roller 20 of FIG. 1 is shown. In the present embodiment, parts corresponding to those of the embodiment of FIG. 1 are designated by the same reference numerals, and overlapping description will be omitted. Flocking layer 22 of functional flocking roller 20
A conductive tube 41, which is a tubular material, is covered on the outer peripheral portion of the. Both ends of the flocked layer 22 in the axial direction are covered with the conductive sponge disks 42.

The conductive tube 41 is formed by imparting conductivity to a tube made of a synthetic resin material such as polycarbonate, polyimide or Teflon (registered trademark). The conductive tube 41 has a thickness of about several tens of μm and is thin and flexible. By manufacturing by an extrusion molding method or the like, the conductive tube 41 can be easily manufactured seamlessly with a smooth surface. FIG. 7 shows a state in which the charging roller 40 of FIG. 6 is disassembled. Both sides of the flocked layer 22 in the axial direction are sandwiched by the conductive sponge disks 42, and the whole is covered with the conductive tube 42 so that the yarns that have come out of the flocked layer 22 do not come out of the charging roller 40. ing. When the yarn comes out from the flocked layer 22 and comes out, if the yarn has conductivity, and if the yarn adheres to the surface of the photoconductor, the charged state is leaked, and depletion occurs in the image. . However, even if the conductive sponge disk 42 is not provided, for example, the length of the conductive tube 41 may be increased so that the both ends in the axial direction are sufficiently longer than the end of the flocked layer 22. , Even if hair loss occurs, conductive tube 4
The inside of 1 can be made hard to come out.

In the charging roller 40 of this embodiment, since the back surface of the flexible conductive tube 41 is supported by the tip of the flocked layer 22, the surface of the conductive tube 41 is easily bent and comes into contact with the photoconductor or the like. The nip, which is the contact length at the time of making, can be made sufficiently long. Further, when contact pressure is required, the length of the yarn forming the flocked layer 22 can be shortened to increase the rigidity.

[0044]

As described above, according to the present invention, one or more functional fibers cut to a predetermined length are adhered to the outer peripheral surface of a roll-shaped core material so as to have a predetermined density. Therefore, when the tip of the functional fiber comes into contact with the target object, it can be easily deformed according to the surface shape of the target object and the like, so that an action with excellent uniformity can be produced. The contact pressure can be adjusted by the length and density of the functional fiber. Attaching a plurality of functional fibers to the outer peripheral surface of the core material can be performed at a lower cost than forming a rubber layer or the like on the outer peripheral surface.

According to the present invention, the functional fiber can be easily and inexpensively obtained by implanting the functional fibers on the outer peripheral surface of the core material by the electrostatic flocking method.

Further, according to the present invention, it is possible to produce a functional fiber making the best use of the characteristics of each polymer by producing a plurality of types of polymers by a composite spinning method in which one polymer is simultaneously spun from one hole.

Further, according to the present invention, functional fibers can be produced by a spinning method in which a material imparting characteristics at the spinning stage is kneaded, and desired characteristics can be imparted easily.

Further, according to the present invention, it is possible to easily obtain a uniform contact state as various functional rollers of an electrophotographic apparatus by defining the range of the length of the functional fiber.

Further, according to the present invention, it is possible to easily obtain a uniform contact state as various functional rollers of an electrophotographic apparatus by defining the range of the linear density of the functional fiber.

Further, according to the present invention, since the monofilament is electrically conductive and electrically conductive with the core material, it can be used for a functional roller to cause an object to electrically act. .

Further, according to the present invention, the range of the single yarn resistance value can be defined so that the electrostatic action can be appropriately performed as the functional roller used in the electrophotographic apparatus.

Further, according to the present invention, the conductivity of the functional fiber can be adjusted by adjusting the mixing ratio of the electrically insulating short fiber and the conductive short fiber.

[Brief description of drawings]

FIG. 1 is a schematic front sectional view and a side sectional view of a functional flocking roller 20 according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the functional flocking roller 20 of FIG.

FIG. 3 is a table showing examples of conductive fibers that can be used as the functional fibers 24 in the functional flocking roller 20 of FIG.

FIG. 4 is a table showing examples of conductive fibers that can be used as the functional fibers 24 in the functional flocking roller 20 of FIG. 1.

5 is a schematic cross-sectional view of the functional fiber 24 of FIG.

FIG. 6 is a schematic sectional view of a charging roller 40 according to another embodiment of the present invention.

7 is an exploded perspective view of the charging roller 40 of FIG.

FIG. 8 is a simplified rough view showing a basic structure of a conventional general electrophotographic apparatus.

9 is a simplified sectional view of the charging roller 3 of FIG.

[Explanation of symbols]

20 Functional flocking roller 21 core material 22 Flocked layer 23 Adhesive layer 24 Functional fiber 40 charging roller 41 Conductive tube 42 Conductive sponge disc

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hakumei Park             232-Mt.             7 Inbufo Co., Ltd. F-term (reference) 2H077 AC05 AD02 AD06 FA11 FA16                       FA27                 2H134 GA01 HA01 HA03 HA09 KD04                       KD12 KD16 KE01 KG08 KH01                 2H171 FA07 FA24 FA26 FA30 GA01                       PA01 PA05 PA06 TA08 TA17                       TA18 UA03 UA07 UA14 UA17                       UA22 XA05                 2H200 FA13 GB13 HA08 HB07 HB45                       HB46 HB47 LC04 LC08 MA04                       MA14 MA20 MB01 MB06 MC03                       MC20                 3B202 AA30 AB03 BA03 BC04

Claims (9)

[Claims] 1. A function comprising: a roll-shaped core material; and one or more functional fibers cut into a predetermined length and attached to the outer peripheral surface of the core material so as to have a predetermined density. Sex flocking roller. 2. The functional fibers are flocked and attached to the outer peripheral surface of a core material by an electrostatic flocking method, and the core material is made of metal, insulating resin, conductive resin, or paper. The functional flocking roller according to claim 1, which is made of a material. 3. The functional flocking roller according to claim 1, wherein the functional fiber is a yarn produced by a composite spinning method. 4. The functional flocking roller according to claim 1, wherein the functional fiber is a yarn manufactured by a kneading spinning method. 5. The predetermined length of the functional fiber is 0.5 m.
The functional flocking roller according to claim 1, wherein the range is m or more and 3 mm or less. 6. The single yarn decitex of the functional fiber is 1
The functional flocking roller according to claim 1, wherein the range is not less than 10 decitex and not more than decitex. 7. The functional flocking roller according to claim 1, wherein the functional fiber has electrical conductivity and electrical conductivity with the core material. 8. The functional fiber has a single yarn resistance value of 10 ⁵ Ω.
8. The functional flocking roller according to claim 7, which is in a range of not less than 10 / Ω / cm and not more than 10 ¹² Ω / cm. 9. The functional flocking roller according to claim 8, wherein the functional fibers include electrically insulating functional fibers and electrically conductive functional fibers.