JP2009190161A - Scissor blade line forming method - Google Patents

Abstract

Provided is a blade line forming method capable of forming a sharp blade line for hairdressing and cosmetic scissors without requiring any special skill.
The cutting edge of the scissors on one side of the scissors is pressed against the continuously moving felt belt so that the blade line is positioned in the moving direction of the felt belt. A scissor blade line that includes a step of forming a minute return blade on the blade back of the blade region, and a step of forming a sharp blade line in the blade region by removing the minute return blade on the blade back of the blade region. The problem can be solved by a forming method.
[Selection] Figure 4

Description

  The present invention relates to a scissors blade line forming method. According to the present invention, it is possible to easily form a sharp blade line in the cutting edge region of hairdressing and beauty scissors without requiring skill.

Conventionally, scissors have been polished using a grindstone or a grinder (rotary polishing machine) in the same manner as a knife such as a knife or knife. When polishing scissors with a grindstone or grinder, remove the essential screws and disassemble them, and polish them in the same way as normal blades.Scissors have different cutting edges from knifes and knives. In order to polish the blade line without deviating, considerable skill is required.
In particular, scissors for hairdressing and hairdressing have special shapes, such as scissors blades, corrugated blades, or sword blades.For example, scissors blades have a round cross-sectional shape on the blade surface. Yes. On the other hand, since the grinding surface of grindstones and grinders is flat, in order to form a sharp cutting line while maintaining the rounded shape of the surface of the blade, it is necessary to match the rounded shape. Skilled techniques such as polishing while turning the wrist back were necessary.

  Furthermore, recent hair scissors and hairdressing scissors are mostly made of stainless steel and have a relatively soft hardness in order to suppress the occurrence of rust. Therefore, when such stainless steel hairdressing and scissors are polished using a grindstone or grinder, excessive polishing will be performed, and it is difficult to maintain the shape of the blade surface. It was supposed to go crazy and drop the sharpness.

  Recently, a scissor polisher (Patent Document 1) and a belt-type scissor polisher (Patent Document 2) using an abrasive sheet have been reported. However, for example, the abrasive sheet and the belt-type abrasive paper used in Patent Document 1 are obtained by applying an abrasive to the entire surface of the sheet or paper, and are the same as those conventionally used for grinding with a grinder or the like. Is. Therefore, even when using a scissors polishing machine or belt-type scissors polishing machine using the above-described polishing sheet, excessive polishing is performed and the cutting edge and the blade angle are distorted, as in the case of using a grindstone or grinder. was there.

JP-A-9-11095 JP 2004-167664 A JP 2002-283212 A

In order to eliminate the above-mentioned drawbacks, the present inventor has conducted extensive research on a method capable of forming a blade line for hairdressing and hairdressing scissors without requiring special skill. In this field, the non-abrasive felt, which has not been used, is used as a polishing material, and a small return blade is formed on the back of the cutting edge area. It was found that it can be formed. The formation of the fine return blade by the felt is extremely weak as compared with the polishing by the conventional grindstone or grinder, but is sufficient for forming the stainless steel return blade. Furthermore, conventionally, when polishing the front blade, the return blade formed on the back of the blade has been excised using a grindstone or a grinder. When the return blade was excised using a grindstone or a grinder, excessive return blades were excised and the blade surface was sometimes sharpened. The present inventor has developed a method of easily cutting the return blade formed on the back of the blade line with a diamond polishing paper after the formation of a minute return blade with a felt belt, It has been found that blade lines can be formed.
The present invention is based on these findings.

Therefore, according to the present invention, the blade front end region of one of the scissors is pressed against the continuously moving felt belt so that the blade line side is positioned in the moving direction of the felt belt. The process of forming the return blade on the back of the cutting edge area while in contact with the felt belt, and removing the return blade on the back of the cutting edge area to form a sharp blade line in the cutting edge area The process of
The present invention relates to a method for forming a scissors blade line.
In a preferred embodiment of the scissor blade line forming method of the present invention, the step of forming the sharp blade line is performed by bringing the blade back of the blade line of the cutting blade into contact with the diamond polishing paper, and from the blade line source to the blade line. This is done by removing the return blade on the back of the blade by moving it forward.
Further, in a preferred aspect of the scissor blade line forming method, the return blade forming step is perpendicular to the moving direction of the felt belt that continuously moves the one front edge region of the scissors. It is performed by repeatedly moving from the blade line tip to the blade line source or from the blade line source to the blade line tip in a state where the blade line is pressed in the direction and in contact with the bent felt belt.
In a preferred embodiment of the scissor felt polishing method of the present invention, the felt is a wool felt, and in particular, a wool felt coated with chromium oxide.

  According to the scissors blade line forming method of the present invention, sharp blade lines for hairdressing and hairdressing scissors can be formed without requiring any special skill. It is possible to form a blade line with sufficient sharpness without deviating the blade angle and blade line while maintaining the shape of the blade surface of hairdressing and scissors for hairdressing having a shape such as a step blade or sword blade It is. Further, since excessive polishing is not performed, expensive hairdressing and beauty scissors can be used for a long time. Furthermore, since it is not necessary to disassemble the scissors and the actual work time is short, the blade line can be formed in a shorter time than the conventional polishing method.

The scissors that can form the blade line by the scissor blade line forming method of the present invention are not particularly limited, but scissors that cut hair or animal skin such as hairdressing and cosmetic scissors and animal trimming scissors are used. Can be mentioned.
The structure of hairdressing and scissors for hairdressing will be described below with reference to the accompanying drawings. FIG. 1 is an overall view of a barber / beauty scissor, and FIG. 2 is a cross-sectional view of a static blade as seen from the direction of arrows AA in FIG. The blade portion of the hairdressing and beauty scissors consists of a moving blade 1 and a stationary blade 2, and the whole of each blade is referred to as a slimming body 3. Moreover, the part which cuts hair etc. among the slimmings 3 is called a cutting blade, the area | region is called the cutting blade area | region 5, and the edge part of the front-end | tip of the blade of the cutting blade area | region 5 is called the blade line 4. FIG. The blade line 4 is divided into about 1/3 of the slimming body 3 and is referred to as a blade line tip 41, a blade line medium 42, and a blade line source 43 from the edge of the blade. Further, the outer surface of each slimming body 3 is referred to as a blade surface 8 and the inner surface is referred to as a blade back 9. In this specification, the area | region of the front-end | tip of a blade surface is called the blade surface front-end | tip area | region 81, and in a step blade, as shown in FIG. 2, it points to the plane part from a blade line, and as shown in FIG. In the region of the blade surface from the blade line, the peak 11 is a portion having a greatly different radius of curvature. As shown in FIG. 2 and FIG. 3, the blade back of the hairdressing hairdressing scissors and the scissors for hairdressing are recessed. The angle formed by the blade surface and the reference line 91 on the back of the blade is referred to as a blade angle 7, and in particular, the blade angle of the blade edge is referred to as a blade edge angle 71, which is about 40 to 45 degrees for a step blade. Since the blade surface has a rounded surface, as shown in FIG. 3, the blade angle formed by the blade surface and the reference line increases as it approaches the blade line. 10 to 20 degrees.

  One mode of forming the return blade in the return blade forming step on the back of the cutting edge region will be described with reference to FIG. The edge surface tip region 81 of the cutting edge having a worn blade line is brought into contact with and pressed against the felt belt at an angle of the edge of the blade with respect to the horizontal felt. The felt belt can hold the blade front end region 81 on the surface while bending downward. Felt belts are not conventionally used as abrasives in the area of hairdressing and cosmetic scissors, but are very weak compared to grinding stones or grinders (rotary polishing machines). It is. However, since the felt belt continuously moves in the moving direction a and the scissors are metal, the metal on the blade surface of the cutting edge region 5 is moved to the blade line by contact with the felt belt, and the blade line A minute return blade 21 can be formed on the back of the blade. A cutting blade in which the minute return blade 21 is formed on the back of the blade line in this way is referred to as a “thread blade state cutting blade”. In the present invention, it is possible to finally form a sharp blade line if a slight return blade is formed on the back side of the blade line, and a sharp blade line is formed with a small return blade. It includes the minimum number of return blades that can be formed.

  The concept of blade line formation by the scissor blade line formation method of the present invention and the concept of polishing by a conventional grindstone or grinder will be described in detail with reference to FIGS. FIG. 5 shows a cutting edge having a worn edge line (hereinafter referred to as “abrasive cutting edge”). When the worn cutting edge is polished by, for example, a return blade forming process as shown in FIG. 4, the metal on the surface of the blade front end region 81 (56 in FIG. 6), as shown by the solid line in FIG. ) Moves in the direction of the blade line, and a minute return blade 21 is formed on the blade back side of the blade line, which becomes the cutting blade in the above-described yarn blade state. The rotation of the felt belt has a very weak polishing power as compared with polishing by a conventional grindstone or grinder, and does not perform excessive polishing. That is, the contact with the felt belt is not intended for polishing, but is intended to form a fine return blade by pressing the blade front end region 81 against the felt belt. Further, since the felt belt is flexible, it can be bent in accordance with the shape of the blade surface in the cutting edge region, so that the blade line and the blade angle are not distorted even if skill is not required. Furthermore, the formation of the return blade by the felt belt is sufficient for stainless steel, and it is possible to easily form a cutting blade in a yarn blade state. On the other hand, the polishing with the grindstone or the grinder is performed up to the region as indicated by the blade line 56 in FIG. 6, and excessive polishing occurs and an excessive return blade is formed. In the case of such polishing, a skilled person can form an optimum return blade. However, even the optimum return blade is an excessive return blade as compared with a minute return blade by the return blade forming step included in the method of the present invention. Furthermore, if it is not a skilled person, an excessive return blade will be formed and it will become a sickle blade state, or a blade angle will be deviated.

  Next, by removing the minute return blade 21 formed on the blade back side of the blade line by the step of forming a sharp blade line described later, the cutting blade in the state of the yarn blade obtained as described above is removed. It is possible to form a “sharp cutting edge” as shown by the solid line in FIG.

Felt is a non-abrasive material that has not been used as an abrasive in the area of polishing hairdressing and cosmetic scissors. The felt that can be used in the scissor blade line forming method of the present invention is not particularly limited as long as it is a non-woven cloth and is made by a felt method of needle punching with a felt needle. Felts are sometimes used for polishing semiconductor wafers and the like. However, since the polishing power of felt itself is weak, abrasives such as silica and alumina are dispersed to increase the polishing power (Patent Document 3). . The material of the felt is not particularly limited, but synthetic fibers such as polyester, polypropylene, heat resistant nylon, acrylic, rayon and kepler, flame resistant fibers such as silica or glass, natural fibers such as cotton, hemp or wool, or those fibers Felts composed of mixed fibers can be mentioned, but felts of 50% by weight or more of wool are preferable, felts of 90% by weight or more of wool are more preferable, and wool felts of 100% by weight of wool are most preferable.
Further, the tensile strength of the felt-made belt with a joint is not particularly limited, but is preferably 60 to 110 kgf / 18 mm, more preferably 70 to 100 kgf / 18 mm, and most preferably 85 ± 5 kgf / 18 mm. It is. Also, the tensile elongation is not particularly limited, but is preferably 10 to 20 mm / 125 mm, more preferably 12 to 18 mm / 125 mm, and most preferably 15 ± 1 mm / 125 mm. Further, the tensile strength of the belt made of felt without joint is not particularly limited, but is preferably 80 to 140 kg weight / 18 mm, more preferably 90 to 130 kg weight / 18 mm, and most preferably 110 ± 5 kg weight / 18 mm. It is. Also, the tensile elongation is not particularly limited, but is preferably 15 to 25 mm / 125 mm, more preferably 17 to 23 mm / 125 mm, and most preferably 20 ± 1 mm / 125 mm.

  Moreover, the felt which used for the scissors blade line | wire formation method of this invention can use the felt which apply | coated the polishing agent. The polishing agent applied to the felt is not used for the purpose of polishing the scissors, but mainly for the purpose of giving the scissors gloss. Examples of “polishing agents” include silica, alumina, forsterite, steatite, mullite, cubic boron nitride, diamond, silicon nitride, boron carbide, silicon carbide, barium carbonate, calcium carbonate, iron oxide, magnesium oxide, oxidation Zirconia, cerium oxide, chromium oxide, tin oxide, titanium oxide and the like can be mentioned, and chromium oxide is preferable.

  The scissor blade line forming method of the present invention includes (1) a step of forming a return blade on the back of the blade in the cutting edge region (hereinafter sometimes referred to as “return blade forming step”), and (2) a cutting blade region. And a step of forming a sharp blade line (hereinafter sometimes referred to as a “back sharpening step”).

  The return blade forming step is performed while moving the felt. Therefore, it is preferable to use a belt-like felt belt. Any method may be used to move the felt belt, but a method of moving the belt by rotating the belt can be easily implemented. The felt belt can be rotated using, for example, an apparatus having a structure as shown in FIG. Specifically, a felt belt 22 is installed on the drive pulley 23 and the passive pulley 24, the drive pulley is driven by a motor (not shown), and the felt belt 22 is rotated in the rotational direction a ′ to make the felt. The belt can be rotated. In the minute turning blade forming step, the blade front end region 81 of the scissors is brought into contact with the felt and pressed. In this case, the felt belt bends with the upper part of the drive pulley 23 and the passive pulley 24 as a fulcrum, but in order to support the bend, the support body 25 may be installed under the rotating upper felt belt. preferable. Moreover, it is preferable to provide the recessed part 26 in the support body under the felt part which presses a blade surface so that the blade surface front-end | tip area | region 81 of scissors can be hold | maintained.

  In the return blade forming process, as shown in FIG. 9, the scissors slimming to be polished is positioned so as to intersect substantially perpendicular to the moving direction (rotation direction a ') of the rotating felt belt. The blade front end region 81 on the blade front side of the cutting blade region is pressed against the felt belt so that the blade line side is positioned in the moving direction (rotation direction a ′) of the felt belt. Thereby, in a state where the felt belt is bent downward, the blade surface in the cutting edge region is brought into contact with the felt belt to form a fine return blade. Since the felt belt is bent, the felt belt comes in contact with the shape of the blade surface in the cutting edge region, and the return blade can be easily formed.

  The width of the felt belt is not particularly limited, but is preferably shorter than the length of the scissors, preferably 0.5 to 10 cm, more preferably 1.5 to 2 cm, and most preferably 1.7 to 1. 8 cm.

The angle at which the front edge region of the blade surface is pressed against the felt belt is preferably pressed at an angle of the edge angle of the scissors against a horizontal felt. For example, in the case of a scissors having a blade edge angle of 45 degrees It is preferable to contact and press at 45 degrees. For example, in the case of scissors having a blade edge angle of 30 degrees, it is preferable to contact and press at 30 degrees. However, since the felt belt is flexible and can bend to match the shape of the cutting edge area, even if the edge angle of the scissors to be accurately ground does not match, the tip area of the cutting edge can be easily And a return blade can be formed.
Moreover, even in the case of a scissors blade whose blade edge angle is not accurately known, it can be pressed at an optimum angle by polishing sound. That is, when the rotating felt belt is brought into contact with scissors, the blade surface is in contact with the felt belt on a “wide surface”. Therefore, when the scissors are gradually raised and the position of the edge angle comes into contact with the felt belt, the area of the contact surface changes and the polishing sound changes, so the edge angle can be easily adjusted. The angle can be sensed and maintained at the edge angle.
The pressure for pressing the blade surface of the cutting edge region against the felt belt is not particularly limited, but when the felt belt is in contact with the concave portion 26 by pressing with a very strong pressure, the rotation of the belt stops. It is preferable that the device has such a structure that can be used.

  The step of forming the return blade can be performed simply by bringing the blade surface of the cutting edge region into contact with the felt belt and pressing it, but the scissors are moved in a direction perpendicular to the felt belt. For example, it is performed by repeating the movement from the blade line tip to the blade line source or from the blade line source to the blade line tip. By moving, a fine return blade can be formed uniformly from the blade line tip to the blade line source. The number of movements is not particularly limited, but is preferably 0.5 to 5 times, more preferably 1 to 4 times, and most preferably 1 to 2 times. When the movement from the blade line tip to the blade line source and from the blade line source to the blade line tip is one round trip, the number of round trips is not particularly limited, but is preferably 0.5 to 5 round trips, more preferably 1 to 4 round trips. Most preferably, it is 1 to 2 reciprocations.

  The step of forming a sharp edge line in the cutting edge region, the so-called back sharpening step, can also be performed by a conventional method. That is, although it can also be performed using a grindstone, a grinder, a polishing sheet, or polishing paper, it is preferable to use a diamond polishing abrasive paper. For example, as shown in FIG. 10, a diamond polishing paper 51 is stuck on a support 52, and the fine return blade in the state of a thread blade obtained by the return blade forming step is removed. In this specification, to cut out a minute return blade means to remove the return blade portion protruding from the extension line of the blade back. More specifically, the slimming blade back side in which the minute return blade 21 is formed on the blade back of the blade line is brought into contact with the diamond polishing paper 51. Since the blades of hairdressing and scissors for scissors are recessed to form a crease, two points, the small return blade 21 and the blade back 53 on the back, make the strongest contact with the diamond polishing paper. By moving the blade back from the blade line source to the blade line tip in a state where the blade back is in contact, the minute return blade 21 is excised. The movement from the blade line source to the blade line tip can be performed by pressing the back of the blade against the diamond polishing paper 51 and moving it (for example, pulling it forward). The number of times of movement from the blade line source to the blade line tip is not particularly limited as long as the optimum return blade can be excised. Moreover, although it changes with sharpness | preference, generally, it becomes like this. Preferably it is 1-12 times, More preferably, it is 4-9 times, Most preferably, it is 7-8 times. When the number of times is large, it becomes sharp like a new product, and when the number of times is small, it is sweet, and when it is cut, the hair becomes sharp as if it is slippery.

Moreover, the said back sharpening process can also be performed using the clip type return blade cutting device shown in FIG. An elastic rubber 32 is installed above the clip 31, a hard rubber 34 is installed below the clip 31, and a diamond polishing paper 35 is attached to the lower surface of the rubber with an adhesive or the like. By using a hook-and-loop fastener between the elastic rubber and the hard rubber, the hard rubber and the diamond polishing paper can be easily exchanged when the diamond polishing paper is worn. Install elastic rubber under the clip, and paste a material such as flexible felt on top of it.
By pulling a slime having a return blade 21 formed on the back side of the blade line obtained by the return blade forming step between the diamond polishing paper and felt of the return blade cutting device, the return blade can be easily pulled. Can be excised. Specifically, as shown in FIG. 12, the blade back of the slimming blade line is directed toward the upper diamond polishing paper and inserted. The pressing point 38 of the clip is pushed downward to sandwich the slimming. With the pressing point 38 kept pressed, the slimming is drawn from the blade line source to the blade line tip. By performing this procedure preferably 1 to 12 times, more preferably 4 to 9 times, most preferably 7 to 8 times, the return blade can be cut off. It can be seen that a line was formed at the portion of the diamond abrasive paper that contacts the blade line, and the return blade was cut off.

  Patent Document 2 describes that a hairdressing scissors and a scissors for hairdressing are polished using a diamond abrasive paper. However, the back sharpening described in Patent Document 2 is performed before the blade surface is polished, and is used for polishing the entire blade surface and adjusting the flutes. Therefore, the diamond abrasive paper is not used to cut off the return blade on the back of the blade line after polishing the blade surface as in the present invention.

  Hereinafter, the present invention will be described in detail with reference to examples, but these do not limit the scope of the present invention.

Example 1
In the present Example 1, the return blade formation was performed using the apparatus which performs the return blade formation process shown in FIG.8 and FIG.9, and the back sharpening was performed using the return blade cutting apparatus shown in FIG.
The drive pulley 23 of the apparatus that performs the return blade forming process has a diameter of 30 mm, the passive pulley has a diameter of 30 mm, and the distance between the center of the drive pulley and the passive pulley is 155 mm. The drive pulley was equipped with a motor (manufactured by Sumitomo) that rotated at 1,250 rpm at 100 V, 50 Hz. The rotational speed of the motor is the rotational speed when the drive pulley and the felt belt are not attached, and the rotational speed when the drive pulley and the felt belt are attached is slower than this.

An annular felt belt having a width of 18 mm and a length of 400 mm was hung on the driving pulley and the passive pulley. The felt belt is wool felt (manufactured by Nihon Kenshi Co., Ltd.), the wool content is 100%, and chromium oxide is applied.
The apparatus was powered on at 100V, the drive pulley was rotated by the motor, and the felt belt was rotated in the a 'direction. The felt belt is pressed against the front end region of the scissors of the step blade so that the scissor blade line side is on the traveling direction side of the felt belt. At this time, with the upper part of the drive pulley 23 and the passive pulley 24 as a fulcrum, the blade surface in the cutting edge region is brought into contact with the felt belt while the felt belt is bent downward by about 5 mm. In this state, the scissors are moved from the blade line tip to the blade line source, from the blade line source to the blade line tip, and again from the blade line tip to the blade line source. In other words, a fine return blade could be formed on the back of the blade by three movements (one reciprocal half).

  A minute return blade formed on the blade back of this blade line was cut out using a clip-type return blade cutting device shown in FIG. 11 to form a sharp blade line. Specifically, it was inserted so that the blade back of the slim blade line was in contact with the diamond polishing paper side of the clip-type return blade cutting device. The pressing point on the upper part of the clip was pushed downward to sandwich the slimming, and in that state, the slimming was pulled forward from the blade line source to the blade line tip. This operation was repeated 7 times. A line was formed on the portion of the diamond polishing paper that was in contact with the blade line, the return blade was cut off, and a sharp blade line was formed.

  The scissor felt polishing method of the present invention can be used for polishing hairdressing and beauty scissors and animal trimming scissors.

It is explanatory drawing which shows a hairdressing and the scissors for hairdressing typically. It is sectional drawing which looked at the scissors blade of FIG. 1 from arrow AA. It is sectional drawing of the stationary blade of a scissors blade. It is explanatory drawing which shows a return blade formation process typically. It is a schematic diagram which shows the concept of the scissors blade line | wire formation method of this invention, and shows the cutting-blade area | region of an abrasion state. It is a schematic diagram which shows the concept of the scissors blade line | wire formation method of this invention, and shows the cutting edge of the thread blade state formed by the return blade formation process, and the return blade formed by the conventional grinding | polishing. It is a schematic diagram which shows the concept of the scissors blade line | wire formation method of this invention, and shows the cutting edge of the sharp state which removed the return blade of the blade back of the cutting blade area | region. It is a schematic diagram of the apparatus which performs a return blade formation process. It is a schematic diagram of the aspect which forms a return blade in the blade back of the blade line by the apparatus which performs the return blade formation process of FIG. It is explanatory drawing which shows typically the back sharpening process which cuts out the return blade of a blade back. It is a schematic diagram of the return blade cutting device which performs back sharpening. It is a schematic diagram of the back sharpening using the return blade cutting device.

Explanation of symbols

1 ... moving blade; 2 ... static blade;
21 ... Slight return blade;
22 ... felt belt; 23 ... drive pulley;
24 ... passive pulley; 25 ... felt support;
26 ... felt support recess;
3 ... slimming;
31 ... clip; 32 ... elastic rubber;
33 ... Hook fastener; 34 ... Hard rubber;
35 ... Diamond polishing paper; 36 ... Felt;
37 ... elastic rubber; 38 ... pressing point;
4 ... blade line;
41 ... blade line tip; 42 ... in the blade line; 43 ... blade line source;
5 ... Cutting edge region;
51 ... Diamond polishing paper; 52 ... Support;
53 ... back of the blade
54 ... broken line indicating the state of the worn edge;
55 ... A broken line showing a state of a cutting edge polished by a conventional polishing method;
56 ... difference between the cutting edge in the thread blade state and the cutting edge in the worn state formed by the return blade forming step of the present invention;
57... Difference in polishing amount between a cutting edge polished by a conventional polishing method and a worn cutting edge;
58... Cutting edge polished by a conventional polishing method and having a wrong blade angle;
59... Fine return blade removed;
60 ... Summary;
61 ... excess return blades;
7 ... Blade angle; 71 ... Blade angle;
8 ... blade table;
81 ... Front edge region of the blade; 9 ... Back of the blade;
91 ... reference line;
10 ... Hizo;
11 ... peak;
a ... the direction of travel of the felt belt;
a '... Direction of rotation of felt belt.

Claims (5)

To the felted belt made by bending one side of the blade of the scissors against the continuously moving felt belt so that the blade line is positioned in the moving direction of the felt belt. In the state of contact, a step of forming a return blade on the blade edge of the cutting edge region, and a step of removing the return blade on the blade edge of the cutting blade region to form a sharp blade line in the cutting edge region,
Scissors blade line forming method.   The step of forming the sharp blade line removes the return blade on the back of the blade by bringing the blade back of the cutting blade into contact with the diamond polishing paper and moving it from the blade line source to the blade line tip. The scissor blade line forming method according to claim 1, which is performed by:   In the return blade forming step, the one side of the blade surface of the scissors is pressed so that the blade line is positioned in a direction perpendicular to the moving direction of the continuously moving felt belt. The scissors blade line forming method according to claim 1, wherein the scissors blade line is formed by repeating the movement from the blade line tip to the blade wire source or from the blade line tip to the blade line tip while being in contact with the felt belt.   The scissors blade line forming method according to any one of claims 1 to 3, wherein the felt is wool felt.   The scissors blade line forming method according to any one of claims 1 to 4, wherein the felt is a wool felt coated with chromium oxide.

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