JP3467451B2 - Hair bundle - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to relates to a hair bundle to be used for calligraphy and painting Yohitsu, workpiece painting Yohitsu, such as cosmetic brush, such as paint for brush or nail polish application.

[0002]

2. Description of the Related Art Most of hair bundles used for calligraphy and painting brushes, work-painting brushes, paint brushes, makeup brushes for manicure application, etc. are made of animal hair. Pigs, raccoons, weasels, goats, and foxes are used as animal hair. The hair bundle composed of this animal hair is produced by inserting the animal hair into a tube having a constant thickness, tying the ends with a thread, and then heating the end surface to make the lengths uniform.

[0003]

However, as shown in FIG.
As shown in FIG.
Have the problems that there is almost no gap between the animal hairs 50a, and the gap between the voids is low and the void ratio is low. A hair bundle having a low porosity is unlikely to cause a capillary phenomenon when immersed in a liquid, so that the amount of liquid that can be held becomes small. For this reason, when such a hair bundle is used, it is necessary to frequently supply the liquid at the time of writing or painting, which is complicated. Moreover, since the number of types of liquid material that can be impregnated is reduced, the hair bundle having a low porosity is limited to a certain use. Furthermore, animal hair varies in thickness depending on animal species and individual differences, and the pressure when inserting animal hair into a cylinder tends to fluctuate. Therefore, even the tip of the same size usually has different hair amount. Further, animal hair has become difficult to obtain in recent years due to restrictions on the capture place and type. Further, a brush made of animal hair has a drawback that its storage rate is lowered due to worm eating and the life of the brush and the brush itself is short.

On the other hand, writing brushes using a bundle of synthetic fibers (polyester fibers) each having a tapered tip and a combination of animal hair are sold. This hair bundle is
By inserting the synthetic fiber with a thin tapered tip in advance or this synthetic fiber and animal hair into a tube with a certain thickness, tying the end with a thread, heating this end face and aligning the length It is made. Therefore, in such a hair bundle, the synthetic fibers alone or the synthetic fibers and the animal hair are arranged in the closest arrangement like the hair bundle consisting of only animal hair, and the porosity is low. And there is a problem that there are few kinds.
Further, since the hair bundle is manually produced, it is difficult to keep the quality of the hair bundle constant, which requires skill.

Therefore, it is an object of the present invention to provide a hair bundle having stable quality and improved liquid material retention.

[0006]

In order to achieve the above-mentioned object, a hair bundle according to the present invention has a hair portion composed of a plurality of synthetic fibers and a base end of the plurality of synthetic fibers bonded to each other. In a hair bundle used for coating or writing or drawing by impregnating a liquid material, the base is a synthetic fiber obtained by melting the base end of the synthetic fiber and solidifying by cooling. In a plate shape in which the synthetic fibers are combined and bundled, and the synthetic fibers are arranged in a non-contact state, and the area ratio of the synthetic fiber non-existing region in the region defined by the base size of the hair portion is 30%. ~ 85
%, And a fluid outflow void is formed in a portion of the base where the synthetic fiber is not arranged. Alternatively, it has a hair portion composed of a plurality of synthetic fibers and a base for connecting the base ends of the plurality of synthetic fibers to each other, and is used for coating or writing or drawing by impregnating a liquid substance. In the bundle, the bristle portion is provided with a plurality of synthetic fiber bundles in which a plurality of synthetic fibers are bundled, and the base is formed by melting and cooling and solidifying the base end portions of the plurality of synthetic fibers. In a plate shape in which the synthetic fiber bundles are integrally bonded and bundled, and the synthetic fiber bundles are arranged in a non-contact state, and the area ratio of the synthetic fiber nonexisting region in the region defined by the base size of the bristle portion is 30. % ~ 85
%, And a fluid outflow void is formed in a portion of the base where the synthetic fiber bundle is not arranged.

The bristle portion is made of two or more kinds of synthetic fibers having different shapes. Further, the diameter of the synthetic fiber arranged in the central area of the flat surface of the base may be different from the diameter of the synthetic fiber arranged in the outer peripheral area surrounding the central area. Further, the diameter of the synthetic fibers arranged in the central row region of the flat portion of the base may be different from the diameter of the synthetic fibers arranged in both the row regions on both sides of the central row region .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings showing the embodiments.

FIG. 1 shows an embodiment of a hair bundle according to the present invention. This hair bundle is applied to, for example, a brush tip used for calligraphy, painting, stencils, makeup, and the like. This hair bundle is composed of a bristle portion 2 made of a plurality of synthetic fibers 1 ... and a base 3 for connecting the base ends of the plurality of synthetic fibers 1 ...

As shown in FIGS. 1 to 3, the base 3 has a disk shape, and a large number of synthetic fibers 1 ... Further, the synthetic fiber 1 has a tip 1a tapered into a tapered shape. At this time, the synthetic fiber 1 may have a shape having a large number of minute recesses on the tapered outer peripheral surface. The base 3 is formed by melting the base ends 1b of a large number of synthetic fibers (thermoplastic synthetic fibers), which will be described in detail later.

By the way, in the hair bundle of the present invention, there are three ways of arranging the synthetic fibers 1 ... Hereinafter, the three types of hair bundles A to C will be described. Hair bundle A
In this case, as shown in FIG. 3, a large number of synthetic fibers 1 ... Are arranged on the flat surface portion 4 of the base 3 in a non-contact state with each other. Further, in the case of the hair bundle B, as shown in FIG. 4, a plurality (for example, 7) of synthetic fiber bundles 5 ... Are arranged on the flat surface portion 4 of the base 3 in a non-contact state with each other. In addition, synthetic fiber bundle 5
Is composed of a predetermined plurality of synthetic fibers 1 ... Although not shown, in the case of the hair bundle C, the flat surface portion 4 of the base 3
Both of the one or more synthetic fibers 1 and the one or more synthetic fiber bundles 5 are arranged in (1) the fibers 1 ... Are not in contact with each other, or (2) The bundles 5 are not in contact with each other. Is there (3)
Whether the fiber 1 and the bundle 5 are not in contact with each other, or (1) (2)
At least one of (3) applies. At this time,
The synthetic fiber bundle 5 included in the hair bundles B and C is composed of two or more synthetic fibers 1 ..., and all the fibers 1 forming the bundle 5 may be in close contact with each other, but the fibers are not in contact with each other. May exist.

In each of the hair bundles A to C, the area ratio of the synthetic fiber non-existing region within the region defined by the base portion size (base portion diameter) of each hair portion 2 is set according to the purpose of use. The area ratio is set to 30% to 85%. Here, the purpose of use is defined to include the type of brush or brush for which the hair bundle is used, what to use for calligraphy, painting, stencil, and the type of liquid material used. Hair bundle A shown in FIG. 3 and FIG.
In the case of the hair bundle B shown in (1), the area defined by the base portion size of each hair portion 2 coincides with the flat surface portion 4 of the base 3. The flat surface portion 4 of the base 3 may be larger than the area defined by the base portion size of the bristle portion 2 (see FIG. 16).

However, in the hair bundle of the present invention, the type of the synthetic fiber 1 may be one type or two or more types. For example, a thermoplastic synthetic fiber can be mentioned, and it can be formed from one kind or two or more kinds selected from the thermoplastic synthetic resins described below. Examples of thermoplastic synthetic resins include polyester synthetic resins (polyethylene terephthalate, polybutylene terephthalate, etc.), polyamide synthetic resins (6,6-nylon, 6-nylon, 6,10-nylon, 6,12-).
Nylon, etc., polyolefin synthetic resin (polyethylene, polypropylene etc.), polyurethane synthetic resin, polyacrylonitrile synthetic resin (polyacrylonitrile, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, etc.) You can Above all, it is preferable to form one or two or more selected from a polyester synthetic resin, a polyamide synthetic resin and a polyacrylonitrile synthetic resin. In particular, a hair bundle mainly composed of polyester synthetic fibers can have higher flexibility than a hair bundle composed of polyamide synthetic fibers.

The synthetic fiber 1 used in the hair bundle of the present invention may have a cross-sectional shape of a circle, an ellipse, a clover shape or a star shape. Further, in FIG. 2, the synthetic fiber 1 has a linear vertical cross-sectional shape, but the surface may be uneven so that the vertical cross-sectional shape is, for example, a crimp shape (wavy). When the synthetic fiber 1 having a cross-sectional shape that is an irregular shape such as a clover shape or a star shape is used, or if the surface of the synthetic fiber 1 is made uneven, the amount of the liquid material held in the hair bundle can be improved. The shape of the synthetic fibers 1 included in the hair bundle may be unified into one kind, but the hair bundle may be formed from two or more kinds of synthetic fibers 1 having different shapes.

The thickness (diameter) of the synthetic fiber 1 is 0.0
It is preferable to set in the range of 3 mm to 0.70 mm. Here, the thickness of the synthetic fiber is the thickness of a portion that is not tapered. The hair bundle may be formed from synthetic fibers 1 having the same thickness, but may be formed from synthetic fibers having different thicknesses. In particular, it is preferable that the thickness of the synthetic fibers 1 in the vicinity of the center of the hair bundle is thicker than that of the synthetic fibers 1 in the outer periphery because the hair bundle (brush portion) becomes stronger.
This will be described later in detail.

Further, in the hair bundle of the present invention, the area ratio of the synthetic fiber non-existing region within the region defined by the base size of the hair portion 2 is
Although it has been described that the area ratio is set to 30% to 85%, the above area ratio may be variously changed depending on the type of the brush or brush, the hardness of the waist of the bristle portion 2, the purpose of use, and the like. However, if the area ratio of the synthetic fiber non-existing region is less than 30%, it is difficult to improve the liquid substance retention of the hair bundle. Further, when the area ratio of the above region exceeds 85%, the gaps between the synthetic fibers, between the fiber bundles, and between the fibers and the fiber bundles become large, and the capillary phenomenon is less likely to occur, so that it is difficult to obtain excellent liquid substance retention. Become. Therefore, the area ratio of the synthetic fiber nonexisting region is preferably set to 30% or more and 85% or less. A more preferable range is 50% to 80%, and a further preferable range is 55% to 75%. At this time, for example, when the hair bundle shown in FIG. 1 is used for calligraphy, the area ratio of the synthetic fiber non-existing region is 30% to
80%, preferably 35% to 70%,
More preferably, it is 38% to 50%.

Further, the sizes of the gaps between the synthetic fibers 1 and 1 on the base 3, the gaps between the synthetic fiber bundles 5 and 5, and the gaps between the synthetic fibers 1 and the synthetic fiber bundle 5 are such that the hair bundles are made of a liquid material. It is preferable to set the capillarity so that it rapidly occurs when it is dipped in. The sizes of the gaps may all be the same, but may be changed in two or more steps.

1 to 4, the case where the hair bundle is applied to the ear of the brush is illustrated, but the hair bundle of the present invention is used for stationery (for example, paintings and stencils), makeup, etc. It can also be applied to a brush or a brush.

As shown in FIGS. 5 and 6, the hair bundle for flat brushes or brushes has a rectangular plate-shaped base 3 and a predetermined plurality of composites extending from the flat portion 4 of the base 3. It consists of fiber 1. The base 3 is formed by melting the base ends of many synthetic fibers 1.

Further, the synthetic fibers 1 on the plane portion 4 of the base 3 are ...
There are three ways of arranging (as in the case of the three types of hair bundles A to C described in FIGS. 3 and 4). That is, in the case of the hair bundle D (not shown), a large number of synthetic fibers 1 are provided on the flat surface portion 4 of the base 3.
Are arranged in a non-contact state with each other. In the case of the hair bundle E shown in FIG. 6, a plurality (for example, 10) of synthetic fiber bundles 5 ... Are arranged on the flat surface portion 4 of the base 3 in a non-contact state with each other. In the case of the hair bundle F (not shown), both the one or more synthetic fibers 1 and the one or more synthetic fiber bundles 5 are arranged on the flat surface portion 4 of the base 3, and (1) the fiber 1 ...
Whether the two are not in contact with each other, (2) the bundles 5 are not in contact with each other, or (3) are the fibers 1 and the bundle 5 are not in contact with each other.
At least one of (1), (2), and (3) applies. At this time, the synthetic fiber bundle 5 included in the hair bundles E and F is
All of the fibers 1 forming the bundle 5 may be in close contact with each other, but may include fibers which are not in contact with each other.

In each of the hair bundles D to F, the area ratio of the synthetic fiber non-existing region in the region defined by the base size (base side length) of each bristle portion 2 is determined according to the purpose of use. Although it is set, it is set to 30% to 85%. In the case of the hair bundle E shown in FIGS. 5 and 6, the area defined by the base portion size of the hair portion 2 coincides with the flat surface portion 4 of the base 3. The flat surface portion 4 of the base 3 may be larger than the area defined by the base portion size of the bristle portion 2.

In the hair bundles D to F (for flat brushes or brushes) described in FIGS. 5 and 6, the kind of the synthetic fiber 1 is the same as that described in the above hair bundles A to C. I can list things. Further, the shape of the synthetic fiber 1 included in the hair bundles D to F can be the same as that described in the above-mentioned hair bundles A to C. However, depending on the use of the hair bundle, there may be a case where the tip is not tapered. Also,
The thickness of the synthetic fiber 1 included in the hair bundles D to F is 0.03 m.
It is preferable to set in the range of m to 0.70 mm. In particular, it is preferable to make the fibers near the center of the hair bundle thicker than the fibers at the outer circumference because the rigidity of the hair bundle becomes stronger. The details will be described later.

In the hair bundles D to F, the area ratio of the synthetic fiber non-existing region in the region defined by the base size is 30% for the same reason as explained in the above-mentioned hair bundles A to C.
It is preferably not less than 85%. A more preferred range is 50% to 80%, and an even more preferred range is 55%.
% To 75%. At this time, when the hair bundle shown in FIG. 5 is used for painting, for example, the area ratio of the synthetic fiber non-existing region is set to 30% to 80%, preferably 38% to 70%. , And more preferably 40% to 5
It is 0%.

The hair bundle according to the present invention is usually used for application or writing while being fixed to a brush shaft or a handle.

The hair bundle of the present invention described above is manufactured, for example, by the method described below. First, the above hair bundles A to C
The manufacturing method will be described using the hair bundle A as an example.

(First Step) In the first step, the fiber positioning member 6 having the structure shown in FIG. 7 is used. That is, the fiber positioning member 6 has a circular fiber positioning plate 8 in which a large number of circular through holes 7 are formed, and a taper shape extending outward from the one end face side along the outer peripheral edge of the fiber positioning plate 8. And a tubular portion 9 having a diameter.

First, a thermoplastic synthetic fiber bobbin (see FIG. 23).
As shown in FIG. 8, the ends of the synthetic fibers 1 ... are drawn out from the bobbins and inserted into the plurality of tubular guides 10, respectively, and then the fiber positioning member 6 is provided.
The end portions of the synthetic fibers 1 ... Are inserted into the through holes 7 of the fiber positioning plate 8 from the cylindrical portion 9 side, and the end portions of the synthetic fibers 1 ... The above is the first step. Reference numeral 11 denotes a shallow dish-shaped hot plate arranged on the fiber positioning plate 8 so as to cover the ends of the respective synthetic fibers 1 protruding from the fiber positioning plate 8 by a predetermined dimension. Used in the second step of.

By the way, the thickness (diameter) of the synthetic fiber used
Is preferably two or more. In particular, when the tapering step described later is performed by immersion treatment in a solvent or rubbing polishing treatment in a state of being immersed in the solvent, the synthetic fiber 1 inserted into the through hole 7 near the center of the fiber positioning plate 8 The thickness of the through hole 7 on the outer peripheral side surrounding the through hole 7
It is preferable to make it thicker than the thickness of the synthetic fiber 1 inserted in. After performing the insertion in this way, the synthetic fiber bundle 5 in which the thick synthetic fiber 1 is arranged in the center can be obtained by performing the second and third steps described later.
Then, the synthetic fiber bundle 5 is tapered by dipping in a solvent or by rubbing and polishing in a state of being dipped in the solvent, so that the thick synthetic fiber 1 is slow in progress of tapering. It is possible to thin and / or shorten only the synthetic fibers 1 in the portion (outer periphery) to be applied, to obtain a tight feeling when applying or writing, and to obtain a hair bundle that is easy to apply or write.

Further, in the first step, by supplying the respective synthetic fibers 1 ... From the respective bobbins, it becomes easy to repeat the supply, and the amount of hairs of the sequentially prepared hair bundle (the synthetic fibers 1 ... Can be kept constant. This constant means the tension (tension) of the single yarn of the hair bundle and the number of yarns from the bobbin. Also, the plurality of cylindrical guides 10 ...
Each synthetic fiber 1 is prevented from being entangled. This guide 10
Can be formed of, for example, a synthetic resin such as vinyl chloride resin, metal, or the like, and the shape thereof is not limited to a cylindrical shape, and may be a rectangular tube shape. If the outer peripheral surfaces of the tubular guides 10 ... Are connected and integrated by adhesion or the like, handling becomes easy.

The fiber positioning member 6 is preferably made of metal such as brass or stainless steel.
In particular, in the case where the taper, which will be described later, is performed with a solvent, stainless steel is preferable in consideration of the corrosiveness and durability against this solvent. Although the shape of the through hole 7 of the fiber positioning plate 8 is circular in FIGS. 7 and 8 described above, the shape is not limited to such a shape, and may be changed to, for example, a rectangle, a triangle, an ellipse, or the like. As a method of forming the through holes 7 ... In the fiber positioning plate 8, a fine hole drilling machine, an electric discharge machine, a laser beam machine, photo etching or the like can be adopted.

Further, the mutual distance L between the through holes 7 ... Of the fiber positioning plate 8 is determined in consideration of the surface tension of the liquid material used,
It is desirable to set it to 0.10 mm to 3.00 mm. A more preferable range is 0.20 mm to 2.50 mm
Is. If this distance L exceeds 3.00 mm, the hair portion 2
Even if the area ratio of the synthetic fiber nonexistence in the region defined by the base dimension of 30% or more is present, there is a possibility that excellent liquid material retention may not be obtained. Conversely, the interval L is 0.
If it is less than 10 mm, the amount of the liquid material retained is too small, which is inappropriate.

The area ratio of the synthetic fiber non-existing region in the region defined by the base size of the bristle portion 2 is determined by the shape of the through hole 7 of the fiber positioning plate 8, the size of the through hole 7 or each through hole 7. Of the synthetic fibers 1 without changing the mutual distance L of the ... Or changing the structure of the fiber positioning plate 8 itself.
It can be adjusted by changing the number or position of the through holes 7 ...

(Second Step) Next, in the second step, as shown in FIGS. 8 and 9, a shallow dish is formed so as to cover the ends of the synthetic fibers 1 ... The shaped hot plate 11 is placed on the flat surface portion 8a (on the side opposite to the tubular portion 9) of the fiber positioning plate 8 and the hot plate 11 is heated. Alternatively, the heated hot plate 11 is attached to the flat surface portion 8a of the fiber positioning plate 8.
To place. Then, due to the heat of the hot plate 11,
The ends of the synthetic fibers 1 protruding from the fiber positioning plate 8 are melted to fill the voids between the hot plate 11 and the fiber positioning plate 8 with the melt, and then the hot plate 11
Is cooled to solidify the melt by cooling to form a disk shape, and a base 3 for binding and integrating the ends of the synthetic fibers 1 to obtain a base 3 is obtained. Alternatively, by applying an adhesive to the flat surface portion 8a of the disk-shaped base 3 that is formed in advance and pressing the flat surface portion 8a on the adhesive side against the end portion of each synthetic fiber, each synthetic fiber The end portions of the above may be adhered to and integrated with the base 3. Alternatively, the ends of the respective synthetic fibers 1 ... Having a sufficiently large protruding dimension from the fiber positioning plate 8 are arranged so as to be covered with a cylindrical hot plate (not shown) having a bottom, and the spaces between the ends are arranged. The base 3 is provided while melting or adhering in the most dense state to bond and integrate.

(Third Step) In the next third step, as shown in FIG. 10, after removing the hot plate 11 and feeding (drawing) the respective synthetic fibers 1 ... From the fiber positioning plate 8 of the fiber positioning member 6. , And is cut into a predetermined length to obtain a bundle of synthetic fibers 1.

(Fourth step) The above-mentioned hair bundle A is produced by subjecting the ends of the bundle of synthetic fibers 1 obtained by cutting to tapering (sharpening).

As the tapering, for example, rubbing polishing, immersion treatment in a solvent, a method of pulling fibers while heating, rubbing polishing treatment in a state of being immersed in a solvent, or physical treatment before immersion treatment in a solvent is performed. It is possible to adopt a method of performing mechanical grinding or the like. Of these, immersion treatment in a solvent is preferable. In addition,
In this tapering step, it is also preferable to form a taper shape having a large number of minute recesses.

In the case of polyester synthetic fiber, the solvent may be, for example, one or more selected from sodium hydroxide, potassium hydroxide, sodium bicarbonate and the like. In the case of polyamide-based synthetic fiber, for example,
One or more selected from formic acid, acetic acid, hydrochloric acid, sulfuric acid, methanol solution of m-cresol and calcium chloride, methanol solution of calcium chloride, phenol, p-toluenesulfonic acid, phosphoric acid, methanol solution of phosphoric acid and the like can be mentioned. . On the other hand, in the case of polyacrylonitrile-based synthetic fiber, for example, one or more selected from dimethylformamide, dimethylsulfoxide and the like can be mentioned.

In order to produce the above-mentioned hair bundle B, the synthetic fibers 1 to be inserted into the respective through holes 7 of the fiber positioning plate 8 ...
It suffices if the number is two or more. Further, in order to produce the hair bundle C, the synthetic fiber 1 is placed in a part of the through hole 7 of the fiber positioning plate 8.
One by one, and two or more by inserting into the remaining through holes 7.

7 to 10 illustrate the case where the through holes 7 ... Are formed in the orthogonal direction with respect to the flat surface portion 8a of the fiber positioning plate 8 of the fiber positioning member 6, for example, as shown in FIG. As described above, the through hole 7 (7a) located at the center of the fiber positioning plate 8 is formed in the direction orthogonal to the plane portion 8a, and the other through holes 7 ... (7b ...) Are centered on the through hole 7a. You may incline so that it may be condensed by the side (cylindrical part 9 side). By using such a fiber positioning member 6, it is possible to obtain a hair bundle in which the tips of the hair portions are easily aligned.

Next, the manufacturing method of the above-mentioned hair bundles D to F will be described by taking the hair bundle E as an example.

(First Step) In this first step, the fiber positioning member 6 having the structure shown in FIG. 12 is used. That is, a plurality of (for example, 10 circular through holes 7 ... Are arranged in a rectangular shape on the fiber positioning plate 8 used in this manufacturing method. Specifically, 5 rows are arranged in two rows. The mutual distances between the through holes 7 ... In one row and the through holes 7 ... In the other row facing each other are equal to each other.

First, the bobbin of the synthetic fiber 1 (see FIG. 23)
Are prepared, the synthetic fibers 1 of each bobbin are passed through the tubular guide, and then the synthetic fibers 1 are inserted into the through holes 7 of the fiber positioning plate 8 from the tubular portion 9 side of the positioning member 6. The end portion of is projected from the fiber positioning plate 8 by a predetermined length.

By the way, the thickness (diameter) of the synthetic fiber used
Is preferably two or more. In particular, when the tapering step described later is performed by immersion treatment in a solvent or rubbing polishing treatment in a state of being immersed in the solvent, the synthetic fiber 1 inserted into the through hole 7 near the center of the fiber positioning plate 8 The thickness of the through hole 7 on the outside that surrounds the through hole 7 ...
It is preferable to make it thicker than the thickness of the synthetic fibers 1 ... After performing the insertion in this way, the synthetic fiber bundle 5 in which the thick synthetic fiber 1 is arranged in the center can be obtained by performing the second and third steps described later.
Then, the synthetic fiber bundle 5 is tapered by dipping in a solvent or by rubbing and polishing in a state of being dipped in the solvent, so that the thick synthetic fiber 1 is slow in progress of tapering. It is possible to thin and / or shorten only the synthetic fibers 1 ... at the portion (outer side) to be applied, and to obtain a tight feeling when applying or writing, and to obtain a hair bundle that is easy to apply or write.

Further, in the first step, by supplying the respective synthetic fibers 1 ... From the respective bobbins, it becomes easy to repeat the supply, and the amount of hair of the sequentially produced hair bundle (synthetic fiber 1 ... Can be kept constant. This constant means the tension (tension) of the single yarn of the hair bundle and the number of yarns from the bobbin. Also, the plurality of cylindrical guides 10 ...
Each synthetic fiber 1 is prevented from being entangled. This guide 10
Is preferably formed from the same material as described in the method for manufacturing the above-mentioned hair bundles A to C.

Further, it is preferable that the fiber positioning member 6 is formed of the same material as described in the manufacturing method of the above-mentioned hair bundles A to C. Further, in FIG. 12, the shape of the through hole 7 of the fiber positioning plate 8 is circular, but the shape is not limited to such a shape, and may be changed to, for example, a rectangle, a triangle, an ellipse, or the like. This through hole 7 to the fiber positioning plate 8
As the forming method of ..., The same method as described in the manufacturing method of the above-mentioned hair bundles A to C can be adopted.

Further, the mutual distance L between the through holes 7 ... Of the fiber positioning plate 8 is 0.10 mm to 3.00 mm for the same reason as explained in the manufacturing method of the above-mentioned hair bundles A to C.
It is desirable to set to. A more preferable range is 0.
It is 20 mm to 2.50 mm.

The area ratio of the synthetic fiber non-existing region in the region defined by the base size of the bristle portion 2 is determined by the shape of the through hole 7 of the fiber positioning plate 8, the size of the through hole 7 or each through hole 7. Of the synthetic fibers 1 without changing the mutual distance L of the ... Or changing the structure of the fiber positioning plate 8 itself.
It can be adjusted by changing the number or position of the through holes 7 ...

(Second Step) In the second step, the hot plate 11 (see FIG. 9) having a bottomed rectangular shallow dish shape or a bottomed rectangular tubular shape is arranged on the flat surface portion 8 a of the fiber positioning plate 8 and projected. The hot plate 11 is heated by covering the ends of the synthetic fibers 1. Alternatively, a sufficiently heated hot plate 11 is arranged on the flat surface portion 8a of the fiber positioning plate 8 to cover the protruding end portions of each synthetic fiber 1.
As a result, each synthetic fiber 1 is heated by the heat of the hot plate 11.
The end part of the melts, the melt is filled in the gap between the hot plate 11 and the fiber positioning plate 8, and then the hot plate 11 is cooled to cool and solidify the melt. And is molded into a rectangular plate shape to obtain a base 3 on which the ends of the synthetic fibers 1 are combined and integrated and bundled. Alternatively, the flat surface portion 8a of the rectangular plate-shaped base 3 formed in advance
By applying an adhesive to the adhesive and pressing the flat surface portion 8a on the adhesive side against the end of each synthetic fiber, the end of each synthetic fiber is adhered to the base 3 to be integrated. good. Alternatively, the ends of the respective synthetic fibers 1 ... Having a sufficiently large protruding dimension from the fiber positioning plate 8 are arranged so as to be covered with a cylindrical hot plate (not shown) having a bottom, and the spaces between the ends are arranged. The base 3 is provided while melting or adhering in the most dense state to bond and integrate.

(Third Step) In the next third step, the hot plate 11 is removed (see FIG.
0), each synthetic fiber 1 is fed from the fiber positioning plate 8 of the fiber positioning member 6 and then cut into a predetermined length dimension to obtain a bundle of synthetic fibers 1. That is, the hair bundle E is obtained. In addition,
The tip of the obtained hair bundle is tapered, or each synthetic fiber 1
The tip of ... may be rounded (cut round). The tapering can be performed by the same method as described in the manufacturing method of the above-described hair bundles A to C.

In order to produce the hair bundle D, the number of synthetic fibers 1 to be inserted into each through hole 7 of the fiber positioning plate 8 may be set to one. Further, in order to fabricate the hair bundle F, the synthetic fibers 1 may be inserted into the through holes 7 in a part of the fiber positioning plate 8 one by one, and two or more synthetic fibers 1 may be inserted into the remaining through holes 7.

Further, in FIG. 12, the through hole 7 is formed in the flat portion 8a of the fiber positioning plate 8 of the fiber positioning member 6.
Although the case where the ... Is formed in the orthogonal direction is illustrated, for example, FIG.
As shown in FIG. 3, the through hole 7 (7a) located at the center of the fiber positioning plate 8 is formed in a direction orthogonal to the plane portion 8a,
The other through-holes 7 ... (7b ...) may be inclined so as to focus on the through-hole 7a on the outlet side (the melting surface side opposite to the tubular portion 9). If such a fiber positioning member 6 is used, it is possible to obtain a hair bundle with a widened hem.

Although the fiber positioning member 6 is composed of the fiber positioning plate 8 and the tubular portion 9 in FIGS. 7 to 13, the tubular portion 9 may be omitted. Further, instead of the one having such a structure, a plurality of joined cylindrical bodies may be used as the fiber positioning member.

That is, when producing the above-mentioned hair bundles A to C, for example, as shown in FIG. 14, one cylindrical tubular body 1 is used.
2 around the center of which are six cylindrical cylinders 12 ...
It is possible to use the fiber positioning member 6 having a structure in which is joined in a substantially circular shape. In this case, the hole of each cylindrical body 12 is the through hole 7.
It is said that On the other hand, when producing the above-mentioned hair bundles D to F,
A structure in which multiple cylindrical cylinders are joined in a rectangle (see Fig. 22)
The fiber positioning member of can be used. The shape of the cylindrical body 12 is not limited to a circular shape, and may have a cross section of, for example, a triangular shape, a rectangular shape, a polygonal shape (honeycomb shape), or the like. The fiber positioning member 6 having a structure in which a plurality of cylinders 12 ... Are joined is easier to manufacture than a fiber positioning member 8 including the fiber positioning plate 8.

When producing a hair bundle using the fiber positioning member 6 composed of a plurality of such cylindrical bodies 12, the area ratio of the synthetic fiber non-existing area in the area defined by the base size of the hair portion is It can be adjusted by changing the wall thickness or thickness (diameter) of the cylindrical body 12, or by changing the number or position of inserting the synthetic fibers 1 without changing the structure itself of the fiber positioning member 6.

According to the present invention described in detail above, in a synthetic fiber bundle used for coating or writing by impregnating a liquid substance, the synthetic fiber non-existence within the region defined by the base size of the bristle portion 2 When the area ratio of the existing region is 30% to 85%, the porosity of the hair bundle can be improved, and thus the liquid substance retention of the hair bundle can be improved. As a result, the amount of liquid matter held in the hair bundle can be increased, and the number of times of liquid supply during application and writing can be reduced. In addition, since it is possible to increase the types of liquid materials that can be held, it is possible to use one hair bundle for various purposes.

[0056] Furthermore, when manufacturing the tufts of synthetic fibers used in the coating or writing impregnated with a liquid-like material, providing a fiber positioning member 6 having a plurality of through holes 7 ... are provided,
Synthetic fibers 1 ... or Synthetic fiber bundles 5 ... Are inserted by inserting synthetic fibers 1 into two or more through holes 7 of the plurality of through holes 7 and projecting ends from the fiber positioning member 6. They can be placed in place without being in contact with each other. Next, by melting or adhering the ends of the synthetic fibers 1 protruding from the fiber positioning member 6 into one body, (1) the fibers are not in contact with each other, or (2) the fiber bundle. Whether they are not in contact with each other, or
(3) Since the fibers can be bundled in a state where the fibers and the fiber bundle are not in contact with each other and / or at least one of them is present, the synthetic fiber does not exist in the region defined by the base size of the bristle portion 2. The area ratio of the region can be set to 30% or more.

In this manufacturing method, the mutual distance L between the through holes 7 into which the synthetic fibers 1 are inserted is 0.10 mm.
By setting it to 3.00 mm, the size of the voids in the hair bundle can be made appropriate, the capillary phenomenon can be easily caused in the hair bundle, and the liquid substance retention of the hair bundle is further improved. can do.

Further, in this manufacturing method, when the synthetic fibers 1 are inserted into the two or more through holes 7 of the fiber positioning member 6 respectively, the synthetic fibers 1 are supplied from the bobbin so that the hair of the hair bundle is Since the amount can be made constant, the quality of the hair bundle such as shape and liquid material retention can be made uniform, and the hair bundle can be efficiently manufactured.

Further, in this manufacturing method, by tapering the tip of the bundle of synthetic fibers 1 obtained in the second step, an appropriate elasticity can be generated in the waist of the hair bundle, and the application of the hair bundle. It is possible to improve the character and the writing quality. The taper can be easily performed by dipping the tape in a solvent, or by rubbing and polishing treatment while the tape is immersed in the solvent.

In this manufacturing method, when the tip of the bundle of synthetic fibers 1 obtained in the second step is tapered by dipping in a solvent, or by rubbing polishing treatment in a state of being dipped in the solvent. Since the progress of tapering of the fibers can be changed by setting the thicknesses of the fibers constituting the fiber bundle to two or more, desired characteristics can be added to the hair bundle.

[0061] Further, by arranging that no color or colored different diameter and / or fibers of the same diameter was in and out, it can be subjected to design decoration briefly tuft. For example, in FIG.
Thick synthetic fibers 1 (1
An example of a method for producing a rectangular hair bundle composed of 3) and thin synthetic fibers 1 (14) arranged around the thick synthetic fiber 13 and having a different color from the thick synthetic fiber 13 will be described. Prepare a fiber positioning member having a structure in which circular through holes having a large diameter are arranged in a V shape, and a large number of circular through holes having a small diameter are arranged around these through holes, and the thick synthetic fibers 13 ... The thin synthetic fibers 14 having different colors are inserted into the through holes, and the thin synthetic fibers 14 are inserted into the small through holes. Then, the ends of the synthetic fibers 13 ..., 14 ... Are taken sufficiently large from the fiber positioning member, and the ends are melted or bonded in the closest packed state to be integrated. This is unrolled and cut to a desired length dimension, sharpened, rounded at the tip, or as it is, to obtain a hair bundle in which the letter “D” is written. It is possible to discriminate characters and pictures even if the thick and thin arrangement of the synthetic fibers 13 and 14 is reversed or a combination of colorless and single colors having the same diameter is combined. Further, according to such a method, it is possible to make the state of the hair bundle for brushes, flat brushes, or brushes before use beautiful.

[0062] Further, At a production method of the tuft to be used in the coating or writing impregnated with a liquid-like material, providing a fiber positioning member having a plurality of through holes are opened, the through hole of the desired position of the fiber positioning member Synthetic fiber is inserted into, the inserted tip is projected from the positioning member, and a synthetic fiber thinner than the synthetic fiber is inserted into the through hole surrounding the through hole at the desired position, and the inserted tip is inserted. After projecting from the positioning member, the tip end projecting from the fiber positioning member is fused and integrated to bundle the synthetic fibers, whereby a fiber bundle in which a thick synthetic fiber is arranged in the center can be obtained. Then, the tip of the fiber bundle is subjected to tapering by a dipping treatment in a solvent or a rubbing / polishing treatment in a state of being dipped in the solvent. Only the fibers at the location (outer side) can be thinned and / or shortened, a firm feeling can be obtained at the time of application or writing, and a hair bundle that is easy to apply or write can be obtained.

By the way, FIG. 16 shows a disk-shaped base 3
And six synthetic fiber bundles 5 around one synthetic fiber bundle 5 ...
The above-mentioned bristle bundle B (see FIG. 4) having the bristle portion 2 in which is arranged. In this hair bundle B, its base 3
Alternatively, a fluid outflow void may be formed. Specifically, as shown in FIG.
It is obtained by forming one or more through holes 15. For example,
A plurality of through-holes 15 are provided in the area excluding the position of each synthetic fiber bundle 5 ...
... to form. Also, for other fluid outflow voids,
Alternatively, as shown in FIG. 17B, it can be obtained by forming at least one slit 16 in the base 3. For example, a plurality of slits 16 ... Is radially formed between the synthetic fiber bundles 5. It should be noted that the base 3 has through holes 15
Both the slit and the slit 16 may be formed. Although not shown, a rectangular base 3 such as the hair bundle E described in FIG.
Also, it is possible to form the through hole 15 and / or the slit 16 as described above.

As described above, by forming the fluid outflow gap formed by the through hole 15 and / or the slit 16 in the base 3, the hair bundle B can be used for a brush of a type in which a liquid substance is stored in the shaft portion.
Is used, the liquid substance in the shaft portion is removed from the through hole 15 of the base 3 and / or
Alternatively, it can be smoothly and sufficiently supplied to the bristle portion 2 through the slit 16. At this time, it is preferable that the ratio of the fluid outflow voids (fluid outflow void ratio) in the flat surface portion 4 of the base 3 corresponds to the composition and concentration of the liquid material (for example, ink). In the hair bundle shown in FIG. 16, the flat portion 4 of the base 3 is larger than the area defined by the base dimension of the bristle portion 2. However, the flat portion 4 is the base dimension of the bristle portion 2. It may be equal to the specified area. Further, by omitting the synthetic fiber bundle 5 at the center of the hair bundle B and providing the through hole 15 therein, the hair bundle B can be used for a brush of a type in which a liquid substance is stored in the shaft portion.
When using, the relay core for supplying the liquid substance in the shaft portion to the bristle portion 2 can be inserted into the through hole 15.

Further, in the hair bundle A described with reference to FIG. 3, the base 3 may be provided with a fluid outflow void consisting of the through hole 15 and / or the slit 16 (see FIG. 17). in this case,
The synthetic fiber 1 is set in advance not to be arranged in a portion of the base 3 where the through hole 15 and / or the slit 16 is formed. Further, the relay core can be inserted into the through hole 15 formed in the center of the base 3 (similar to the above). In this way, if this hair bundle A is used for a brush of a type in which a liquid substance is stored in the shaft portion, the liquid substance in the shaft portion can be smoothly transferred to the hair portion 2 through the through hole 15 and / or the slit 16 of the base 3. And it can be supplied sufficiently.

Next, in the hair bundle of the present invention, it has been described above that the hair portion 2 may be composed of two or more kinds of synthetic fibers, which will be described in more detail.

As shown in FIGS. 16 and 18, for example, in the case of the hair bundle B, the hair portion 2 is constructed by arranging six synthetic fiber bundles 5 ... It is also possible to form the hair bundle B by making the diameter of the synthetic fibers 1 arranged in the central region of the base 3 different from the diameter of the synthetic fibers 1 arranged in the outer peripheral region surrounding the central region. That is, the diameter of the synthetic fiber 1 inserted through the through hole 7 at the desired position (center) of the fiber positioning member 6 and the other through holes 7 on the outer peripheral side surrounding the through hole 7 at the desired position are inserted. The diameters of the synthetic fibers 1 are made different.

Specifically, a predetermined number of synthetic fibers 1 (thick fibers 13) having a large diameter are provided in the through hole 7 of the central cylindrical body 12 (12a) of the fiber positioning member 6 consisting of seven cylindrical bodies 12. Along with this insertion, a predetermined plurality of synthetic fibers 1 (thin fibers 14) each having a small diameter are inserted into each through hole 7 of the other cylindrical body 12 ... (12b ...) On the outer peripheral side of the cylindrical body 12a. At this time, as shown in FIG.
A bundle G of synthetic fibers composed of a plurality of predetermined fibers is wound around, and the bundle G of synthetic fibers fed from each bobbin 17 ...
Are inserted through the respective tubular guides 10 and through the respective through holes 7 of the fiber positioning member 6. In FIG. 23, the bundle G of synthetic fibers is simplified and shown by a single line.

After that, as described above, the ends of the synthetic fibers 1 protruding from the fiber positioning member 6 are integrated and bundled by melting or bonding, and the base 3 is provided (see FIG. 9). Each synthetic fiber 1 is fed from the positioning member 6 and cut into a predetermined length dimension (see FIG. 10), and the cut synthetic fibers 1 ...
The tips 1a of ... are tapered to obtain a hair bundle B. In the obtained hair bundle B, the area ratio of the synthetic fiber non-existing region within the region defined by the base portion size of the hair portion 2 is set to 30% to 85% for the above reason.

By producing the hair bundle B in this manner, the synthetic fiber bundle 5 composed of the thick fibers 13 is arranged at the center of the hair portion 2, and the synthetic fiber bundle 5 at the center is arranged.
However, the long hair at the center of the tip of the brush becomes the so-called "life hair" that is most important for writing, and it is easy to use, has a good writing feel, and has a fluffy waist 2. It is possible to reduce the variation of the tips of the hairs. Further, unlike the manual work by the brush maker, it is possible to mass-produce while keeping the quality of the hair bundle constant.

Further, as shown in FIGS. 16 and 19, when the bristle portion 2 of the bristle bundle B is composed of a plurality of synthetic fiber bundles 5, the synthetic fibers 1 arranged in the central row region of the base 3 are The diameter and the diameter of the synthetic fibers 1 arranged on both side row regions on both sides of the central row region may be different from each other in the tuft B. That is, the diameter of the synthetic fibers 1 inserted into the through holes 7 in the desired row of the fiber positioning member 6 and the through holes 7 in both rows of the through holes 7 in the desired row.
The diameters of the synthetic fibers 1 inserted in the ... Are made different.

Specifically, the synthetic fiber 1 (thick fiber) having a large diameter is inserted into each through hole 7 of the cylindrical bodies 12 ... (12c ...) In the central row of the fiber positioning member 6 composed of the seven cylindrical bodies 12. 1
3) is inserted into each of the through holes 7 of the cylindrical bodies 12c of the central row and the other cylindrical bodies 12 of the both rows of the central row 12c. 1
4) Insert a predetermined plurality of each. After that, as described above, each synthetic fiber 1 protruding from the fiber positioning member 6
The end portions of the ... Are integrated and bundled by melting or bonding, and the base 3 is provided, and the base 3 is fed out and cut into a predetermined length dimension, and each synthetic fiber 1 is tapered to form the hair bundle B. obtain. In the obtained hair bundle B, the area ratio of the synthetic fiber non-existing region in the region defined by the base size of the bristle portion 2 is set to 30% to 85%.

In the thus-fabricated bristle bundle B, a plurality of synthetic fiber bundles 5 made of thick fibers 13 are arranged in series in the central row region of the bristle portion 2. That is, it is possible to obtain the hair bundle B in which the so-called "life hair" described above is arranged in series at the center.

By the way, in the hair bundle B shown in FIG. 18, it has been described that the synthetic fiber bundle 5 at the center thereof is composed of the thick fibers 13 to form "life hairs", but the thick fibers 13 and the thin fibers 14 ... Alternatively, the central synthetic fiber bundle 5 may be formed by mixing. That is, as shown in FIG. 20, two or more kinds of synthetic fibers 1 having different diameters are inserted into the same through hole 7 of the fiber positioning member 6.

Specifically, a predetermined number of thick fibers 13 and thin fibers 14 are inserted into the through hole 7 of the central cylindrical body 12 (12a) of the fiber positioning member 6 consisting of seven cylindrical bodies 12 ... At the same time, a predetermined plurality of thin fibers 14 are inserted through the through holes 7 of the other cylinders 12 ... (12b ...) On the outer peripheral side of the cylinder 12a. After that, the hair bundle B is obtained in the same manner as described above. In the obtained hair bundle B, the area ratio of the synthetic fiber non-existing region in the region defined by the base size of the hair portion 2 is set to 30% or more.

By producing the hair bundle B in this way, it is possible to change the ratio of the thick fibers 13 and the thin fibers 14 of the synthetic fiber bundle 5 arranged at the center of the hair portion 2, so that The hardness can be adjusted.

Further, as shown in FIG. 21, among a plurality of tubular bodies 12 of the fiber positioning member 6, a predetermined plurality or all of the tubular bodies 12 ... Are provided with a thick fiber 13 and a thin fiber 13 in each through hole 7. The hair bundle B can also be produced by inserting and mixing a plurality of fibers 14 at a time. By producing the hair bundle B in this way, it is possible to arrange the synthetic fibers 1 having different diameters randomly or evenly over the entire hair portion 2. In the obtained hair bundle B, the area ratio of the synthetic fiber-free area in the area defined by the base size of the hair portion 2 was 30%.
It is set to ~ 85%.

Further, as shown in FIG. 22, a fiber positioning member 6 having a plurality of cylindrical bodies 12 ... Arranged in a rectangular shape.
When using the fiber positioning member 6 in which, for example, five cylindrical bodies 12 ... Are arranged in three rows,
Thick fibers 13 in each of the cylinders 12 ... (12c ...) in the central row
A predetermined number of thin fibers 14 are inserted into each of the cylindrical bodies 12 ... (12d ...) on both sides of the column while a predetermined number of thin fibers 14 are inserted into each flat body (as described with reference to FIGS. 5 and 6). It is also possible to produce a hair bundle E for hair and brush. By producing the hair bundle E in this way, five synthetic fiber bundles composed of the thick fibers 13 are arranged in series, and the "life hairs" are arranged in series in the center. The hair bundle E for brushes and brushes can be obtained. In addition, the obtained hair bundle B
The area ratio of the synthetic fiber non-existing region within the region defined by the base size of the bristle portion 2 is set to 30% to 85%.

Further, in FIG. 22, each cylindrical body 12 in the central row is
For each of the through-holes 7, a thick bundle of fibers and a thin bundle of fibers may be mixed and inserted into each of the through-holes 7 to form the hair bundle E. Further, with respect to all the tubular bodies 12, it is also possible to fabricate the hair bundle E by inserting a thick fiber and a thin fiber in each through hole 7 ...

Further, in the method of manufacturing the hair bundle, as shown in FIGS. 24 and 25, the flexible thin plate member 19 having an uneven corrugated shape having a plurality of arcuate concave portions 18a ..., Arc convex portions 18b.
It is also possible to produce a hair bundle B having a hair portion made of a plurality of synthetic fiber bundles and a base by using the fiber positioning member 6 made of (see FIG. 16). That is, by winding the flexible thin plate member 19 from the one end side in a spiral shape as shown by the arrow P, a plurality of through holes 7 ... Are formed in the arc-shaped recesses 18a. Get 6. In this case, there is a method in which the flexible thin plate member 19 is wound from one end while the bundle of synthetic fibers is placed on each recess 18a. At this time, if a bundle of large-diameter synthetic fibers is placed on the concave portion 18a on the one end side and a bundle of small-diameter synthetic fibers is placed on the other concave portions 18a and the flexible thin plate member 19 is wound, it is formed by winding. In addition, a bundle of large-diameter synthetic fibers that will become "live hair" will always be arranged in the through hole 7 at the center of the fiber positioning member 6. The wound fiber-positioning member 6 may be externally fitted and held by the tubular member 20. In addition, the empty flexible thin plate member 19 is wound to form the fiber positioning member 6, and the tubular member 20 is fitted and held so that the bundle of synthetic fibers is inserted into each through hole 7 ... You can

After the bundles G of synthetic fibers have been inserted into the fiber positioning member 6 having such a structure, the ends of the synthetic fibers 1 protruding from the fiber positioning member 6 are processed in the same manner as described above. Are bundled together by melting or bonding, and a base 3 is provided, and the base 3 is fed out from the fiber positioning member 6 and cut into a predetermined length dimension, and each synthetic fiber 1 is tapered to obtain a hair bundle B. The obtained hair bundle B is a synthetic fiber bundle 5
Are arranged in a spiral shape, and the area ratio of the synthetic fiber non-existing region in the region defined by the base size of the bristles 2 is
It is set to 30% to 85%. Also, one synthetic fiber 1 may be inserted into each through hole 7 ... Or one synthetic fiber 1 may be inserted into each through hole 7 at a desired position and a plurality of synthetic fibers 1 may be inserted into the remaining through holes 7. Is also good. Further, the flexible thin plate member 19 may have an uneven corrugated shape composed of a triangular convex portion and a concave portion.

According to the manufacturing method of the hair bundle by such a (coil winding) winding method, even if a large number of through holes 7 ... Are formed in the fiber positioning member 6, the through hole 7 at the center thereof has a "life". A bundle of thick synthetic fibers, which becomes "hair", can be arranged easily and reliably. That is, it is possible to easily and surely obtain a hair bundle in which "life hair" is located at the center,
The hair bundle can be easily adapted to the size of the brush. Further, the fiber positioning member 6 can be manufactured more easily, and the mutual distance L between the through holes 7 can be easily set, as compared with the process of forming a large number of through holes in the plate material at small intervals. Further, the diameter of the through hole 7 can be easily changed by adjusting the strength of the winding pressure of the flexible thin plate member 19, and the through holes 7 having different diameters can be mixed. Also,
The area ratio of the synthetic fiber non-existing region in the region defined by the base portion size of the bristles is changed by changing the wall thickness of the flexible thin plate member 19 or the number of corrugated portions, or the structure itself of the flexible thin plate member 19. By changing the number or position of the synthetic fiber bundles G without changing the number, or by loosening the winding pressure of the wound flexible thin plate member 19 to increase the interval between the synthetic fiber bundles G, G. Can be adjusted. As a result, for example, a hair bundle suitable for use with a highly viscous paint can be obtained.

The present invention is not limited to the above-described embodiment. For example, in FIGS. 18 to 25, a case where a hair bundle is produced mainly by using two or more kinds of synthetic fibers 1 having different diameters. As described above, two or more kinds of synthetic fibers having different vertical cross-sectional shapes are mixed, two or more kinds of synthetic fibers having different cross-sectional shapes are mixed, or synthetic fibers having different diameters, vertical cross-sectional shapes, and cross-sectional shapes. It is also possible to make a hair bundle by combining and mixing. Further, it is possible to gradually increase the diameter of the synthetic fiber 1 from the center of the bristle portion 2 toward the outer peripheral side, and it is possible to meet the demand and demand of the market.

[0084]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

Example 1 Having the structure shown in FIG. 7 described above, the diameter of the through holes 7 of the fiber positioning plate 8 was slightly larger than 0.15 mm, and the number of through holes 7 was 560. The mutual distance between the holes 7 ... 0.3
A fiber positioning member 6 made of brass and made of mm was prepared.

Nylon 61 which is a polyamide synthetic fiber
560 bobbins of 0 fibers (0.15 mm in diameter) were prepared, the synthetic fibers of each bobbin were inserted into a vinyl chloride tube serving as a guide, and then the fiber positioning plate 8 was inserted from the tubular portion 9 side of the fiber positioning member 6. Of the fiber positioning plate 8 was inserted into the through hole 7. Subsequently, a shallow plate-shaped hot plate is arranged on the fiber positioning plate 8 so as to cover the protruding ends of the respective synthetic fibers, the hot plate is heated to melt the ends of the respective fibers, and then the hot plate is cooled. This formed a disk-shaped base.

Then, after removing the hot plate, each fiber was delivered from the fiber positioning plate 8 and cut into a predetermined length dimension to obtain a bundle of synthetic fibers having a total length of 40 mm and a base diameter of 5.0 mm. The tip of the obtained synthetic fiber bundle is dipped in a methanol solution of calcium chloride to make a taper thin,
It was a bunch of brush hair.

In the obtained hair bundle, the area defined by the base diameter was 19.63 mm ² , and the area ratio of the synthetic fiber-free area in this area was 50%.

Example 2 A fiber positioning member similar to that in Example 1 was prepared, except that the structure of the fiber positioning plate 8 was as shown in FIG. That is, the fiber positioning plate 8 has 19
The circular through-holes 7 ... Are arranged densely in a substantially circular shape. The through holes 7, ... Are equidistant from each other. In this case, the diameter of the through holes 7 is set to 1.6 mm, and each through hole 7
The mutual interval of ... Was set to 0.40 mm.

Nylon 61, which is a polyamide-based synthetic fiber
Seven bobbins having 0 fibers (0.15 mm in diameter) and 80 twists were prepared, and a bundle of 80 synthetic fibers was formed from each bobbin in Example 1.
After passing through a guide similar to that described above, the fiber positioning member is inserted into the seven through holes 7 arranged in a substantially circular shape in the vicinity of the center of the fiber positioning plate 8 from the tubular portion side, and the inserted end is inserted. It was made to project from the fiber positioning plate 8. Subsequently, a shallow plate-shaped hot plate is arranged on the fiber positioning plate 8 so as to cover the protruding ends of the respective synthetic fibers, the hot plate is heated to melt the ends of the respective fibers, and then the hot plate is cooled. This formed a disk-shaped base.

Then, after removing the hot plate, each fiber was delivered from the fiber positioning plate 8 and cut into a predetermined length dimension to obtain a bundle of synthetic fibers having a total length of 40 mm and a base diameter of 5.6 mm. The tip of the obtained synthetic fiber bundle is dipped in a methanol solution of calcium chloride to make a taper thin,
It was a bunch of brush hair.

In the obtained hair bundle, the area defined by the base diameter was 24.62 mm ² , and the area ratio of the synthetic fiber-free area in this area was 40%.

Example 3 A hair bundle was produced in the same manner as in Example 2 except that the mutual distance between the through holes of the fiber positioning plate was set to 1.00 mm.

The obtained hair bundle had a total length of 40 mm, a base diameter of 6.8 mm, and an area of a region defined by the base diameter of 3 mm.
At 6.30 mm ² , the area ratio of the synthetic fiber-free region in this region was 60%.

Example 4 A hair bundle was produced in the same manner as in Example 2 except that the mutual distance between the through holes of the fiber positioning plate was set to 2.30 mm.

The obtained hair bundle had a total length of 40 mm, a base diameter of 9.4 mm, and an area of a region defined by the base diameter of 6 mm.
At 9.36 mm ² , the area ratio of the synthetic fiber-free region in this region was 80%.

Example 5 A hair bundle was produced in the same manner as in Example 2 described above except that the distance between the through holes of the fiber positioning plate was set to 3.00 mm.

The obtained hair bundle had a total length of 40 mm, a base diameter of 10.8 mm, an area of a region defined by the base diameter of 91.56 mm ² , and an area of a synthetic fiber-free region in this region. The rate was 85%.

Example 6 A hair bundle was produced in the same manner as in Example 2 except that the mutual distance between the through holes of the fiber positioning plate was set to 1.20 mm.

The obtained hair bundle had a total length of 40 mm, a base diameter of 7.2 mm, and an area of a region defined by the base diameter of 4 mm.
At 0.69 mm ² , the area ratio of the synthetic fiber-free region in this region was 65%.

Example 7 A fiber positioning member similar to that of the above-described Example 2 was prepared except that the mutual distance between the through holes of the fiber positioning plate was set to 1.40 mm.

Nylon 61, which is a polyamide-based synthetic fiber
One bobbin of 80 twists of 0 fiber (0.15 mm in diameter) was prepared, and a bundle of 80 synthetic fibers from the bobbin was passed through the same guide as described in Example 1, and then a tube of a fiber positioning member. From the side of the fiber positioning plate, the fiber positioning plate 8 was inserted into the central through hole, and the inserted end was projected from the fiber positioning plate 8.
On the other hand, six bobbins of 80 twisted nylon 610 fibers (0.13 mm in diameter) were prepared, and a bundle of 80 synthetic fibers from each bobbin was passed through the same guide as described in Example 1, From the tubular portion side of the positioning member, the fiber-positioning plate was inserted into six through-holes that surround (enclose) the central through-hole of the fiber-positioning plate, and the inserted ends were projected from the fiber-positioning plate 8. Subsequently, a shallow plate-shaped hot plate is arranged on the fiber positioning plate 8 so as to cover the protruding end of each synthetic fiber, and the hot plate is heated to melt the end of each fiber,
A disk-shaped base was formed by cooling the hot plate.

Then, after removing the hot plate, each fiber was delivered from the fiber positioning plate 8 and cut into a predetermined length dimension to obtain a bundle of synthetic fibers having a total length of 40 mm and a base diameter of 7.6 mm. The tip of the obtained synthetic fiber bundle is dipped in a methanol solution of calcium chloride to make a taper thin,
It was a bunch of brush hair.

In the obtained hair bundle, the area defined by the base diameter was 45.34 mm ² , and the area ratio of the synthetic fiber-free area in this area was 70%.

Example 8 Seven bobbins of 80 twisted polyester fibers each having a diameter of 0.15 mm were prepared, and the total length was 40 mm and the base diameter was the same as in Example 2 except that this was used. 5.6
A bundle of mm synthetic fibers was obtained. The tip portion of the obtained synthetic fiber bundle was dipped in a heated sodium hydroxide aqueous solution to be tapered into a thin hair bundle for a brush.

In the obtained hair bundle, the area defined by the base diameter was 24.62 mm ² , and the area ratio of the synthetic fiber-free area in this area was 40%.

Example 9 A fiber positioning member 6 having the structure shown in FIG. 14 and having an inner diameter of the cylindrical tube 12 of 1.6 mm and an outer diameter of 2.0 mm was prepared.

Nylon 61, which is a polyamide-based synthetic fiber
Seven bobbins having 0 fibers (0.15 mm in diameter) and 80 twists were prepared, and a bundle of 80 synthetic fibers was formed from each bobbin in Example 1.
After passing through the same guide as described above, each cylinder 12 ...
, And the inserted end was projected from each cylinder 12. Subsequently, by covering the end of each fiber protruding from each cylinder 12 with a shallow plate-shaped hot plate, heating this hot plate to melt the end of each fiber, and then cooling the hot plate. A disc-shaped base was formed.

Then, after removing the hot plate, each fiber was delivered from each cylinder 12 ... And cut into a predetermined length dimension to obtain a bundle of synthetic fibers having a total length of 40 mm and a base diameter of 6.0 mm. . The tip of the obtained synthetic fiber bundle was dipped in a methanol solution of calcium chloride to be tapered into a hair bundle for a brush.

In the obtained hair bundle, the area defined by the base diameter was 28.26 mm ² , and the area ratio of the synthetic fiber-free area in this area was 50%.

(Comparative Example 1) 560 nylon 610 fibers (0.15 mm in diameter) having tapered tips were bundled into a state in which the fibers were in contact with each other, that is, the closest packing shown in FIG. After tying the base end part with a thread in an arrayed state, the base end face is heat-welded to be integrated so that each fiber does not come off, the total length is 40 mm, and the base diameter is 4.1 mm A hair bundle was prepared.

In the obtained hair bundle, the area defined by the base diameter was 13.20 mm ² , and the area ratio of the synthetic fiber-free area in this area was 20%.

(Comparative Example 2) 560 nylon 610 fibers (0.15 mm in diameter) having tapered tips were bundled and the fibers were in contact with each other, that is, the closest packing shown in FIG. After tying the base end part with a thread in an arrayed state, the base end face is heated and welded to be integrated, and the total length is 40 mm so that each fiber does not come off, and the base diameter is 4.3 mm A hair bundle was prepared.

In the obtained hair bundle, the area defined by the base diameter was 14.51 mm ² , and the area ratio of the synthetic fiber-free area in this area was 25%.

20 hair bundles of each of the obtained Examples 1 to 9 and Comparative Examples 1 and 2 were prepared, and each of them was mixed with a watercolor paint, and the content thereof was measured. Shown in 1.

[0116]

[Table 1]

As is clear from Table 1, the area of the synthetic fiber non-existence ratio in the region defined by the base size is 30%.
The area ratio of the hair bundles of Examples 1 to 9 is 30%.
It can be seen that the content of the watercolor paint is higher than that of the hair bundles of Comparative Examples 1 and 2 which are smaller. Further, when a hair bundle prepared in the same manner as in Examples 1 and 2 was used as a stencil brush, except that the tapering process was not performed, it was possible to include a sufficient amount of paint with a single liquid supply, The feeling of use for the metal net was good. On the other hand, the hair bundle of Example 7 obtained by a method in which the thickness of the synthetic fiber inserted into the through hole at the center of the positioning plate of the positioning member is made thicker than the synthetic fiber inserted into the through hole on the outer peripheral side is Since the area near the center is harder than the area around the outer edge, a good writing feeling was obtained, which was a sensation when writing.

Example 10 Having the structure shown in FIG. 12 described above, the diameter of the through holes 7 of the fiber positioning plate 8 was 1.1 mm, the number of the through holes 7 was 10, and the through holes 7 ... Has a mutual distance L of 0.5 mm, and
A fiber positioning member 6 made of brass was prepared.

Nylon 61 which is a polyamide synthetic fiber
0 fibers (0.15 mm diameter) 39 twisted bobbins 10
After individually preparing and passing a bundle of 39 synthetic fibers from each bobbin through the same guide as described in Example 1, from the tubular portion 9 side of the fiber positioning member 6 to each through hole of the fiber positioning plate 8. 7 was inserted, and the inserted end was projected from the fiber positioning plate 8. Subsequently, a rectangular shallow plate-shaped hot plate is arranged so as to cover the ends of the fibers protruding from the fiber positioning plate 8, and the hot plate is heated to melt the ends of the fibers, and then the hot plate is placed on the hot plate. A rectangular base was formed by cooling.

Next, after removing the hot plate, each fiber was fed out from the fiber positioning plate 8 and cut into a predetermined length dimension to obtain a bundle of synthetic fibers to prepare a hair bundle for a brush.

The obtained hair bundle has a total length of 40 mm, a base size of 7.5 mm in length and a width of 2.7 mm, and the area of the region defined by the base size is 20.25 mm ² , and the composition in this region is The area ratio of the fiber non-existing region was 50%.

(Comparative Example 3) 390 nylon 610 fibers (0.15 mm in diameter) were bundled, and the fibers were in contact with each other, that is, as shown in FIG.
Inserted in a rectangular cylinder so as to be in the most densely arranged state shown in 7, bound the base end portion with a thread, and heat-welding the base end surface to unite them so that each fiber does not come off. The total length is 40mm, the length of the base is 4.5mm and the width is 2.2m.
m hair bristles for brushes were produced.

In the obtained hair bundle, the area of the region defined by the base portion was 9.25 mm ² , and the area ratio of the synthetic fiber-free region in this region was 25%.

20 hair bundles of each of the obtained Example 10 and Comparative Example 3 were prepared, each was mixed with watercolor paint, the content thereof was measured, and the average content of 20 is shown in Table 2 below.

[0125]

[Table 2]

As is clear from Table 2, the area ratio of the synthetic fiber non-existing region within the region defined by the base size is 3
The area ratio of the hair bundle of Example 10 which is 0% or more is 30.
It can be seen that the content of the watercolor paint is higher than that of the hair bundle of Comparative Example 3, which is less than%.

[0127]

Since the present invention is configured as described above, it has the following effects.

Hair portion 2 of the hair bundle (according to claim 1 or 2)
However, since the area ratio of the synthetic fiber non-existing region suitable for various purposes such as calligraphy and painting is set, the hair bundle is optimal for various purposes. That is, the capillarity phenomenon is likely to occur, the liquid material retention property is improved (the number of times of liquid supply is reduced), and a brush or a brush with good usability can be obtained. In addition, the liquid matter retention of the hair bundle is surely improved.

(According to claim 3) The bristle portion 2 has different diameters, synthetic fibers 1 and 1 having different longitudinal cross sections, synthetic fibers 1 and 1 having different cross sections, and diameters. By using synthetic fibers 1, 1, 1 and the like having different longitudinal cross sections and transverse cross sections, it is possible to easily form gaps between the synthetic fibers 1 for improving liquid material retention. .

At the center of the hair portion 2 (according to claim 4), a so-called "live hair" formed of thick fibers 1 (13) is arranged, so that the waist of the hair portion 2 is The hair is hard and the tips of the hair are less likely to vary, and moreover, the hair bundle is easy to use and can give a soft feeling when applying or writing. Particularly, it is suitable for writing.

(According to claim 5) In the central row region of the bristle portion 2, so-called "live hair" formed from the thick fibers 1 (13) is arranged. The waist is stiff, the tips of the hairs are less likely to vary, and the hair bundle is easy to use and can give a firm feeling when applying or writing. In particular, it is suitable for flat brushes and brushes.

( Furthermore , according to claim 1, a hair bundle can be used for a brush of a type in which a liquid substance is stored in the shaft portion, and the liquid substance can be smoothly and sufficiently supplied to the hair portion 2. . At this time, the fluid outflow porosity can be freely set and changed according to the composition, concentration, viscosity, etc. of the liquid material .

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a hair bundle according to the present invention.

FIG. 2 is an enlarged vertical sectional view showing synthetic fibers included in the hair bundle of FIG.

FIG. 3 is a plan view showing an arrangement state of synthetic fibers on the base of the hair bundle shown in FIG.

4 is a plan view showing another arrangement state of synthetic fibers on the base of the hair bundle shown in FIG. 1. FIG.

FIG. 5 is a perspective view showing another embodiment of the hair bundle according to the present invention.

FIG. 6 is a plan view showing an example of an arrangement state of synthetic fibers on the base of the hair bundle shown in FIG.

FIG. 7 is a perspective view showing an example of a fiber positioning member used in a method for manufacturing a hair bundle.

FIG. 8 is a cross-sectional view showing a first step of the method for manufacturing a hair bundle.

FIG. 9 is a cross-sectional view showing a second step of the method for manufacturing a hair bundle.

FIG. 10 is a cross-sectional view showing a third step of the method for manufacturing a hair bundle.

11 is a cross-sectional view showing a modified example of the through hole of the fiber positioning plate in the fiber positioning member of FIG.

FIG. 12 is a perspective view showing another fiber positioning member used in a method for manufacturing a hair bundle.

13 is a cross-sectional view showing a modified example of the through hole of the fiber positioning plate in the fiber positioning member of FIG.

FIG. 14 is a perspective view showing another fiber positioning member used in a method for manufacturing a hair bundle.

FIG. 15 is a plan view showing a hair bundle for Lee Nteria.

16 is a perspective view showing the tuft of hair in FIG. 1. FIG.

FIG. 17 is an explanatory diagram showing a modified example of the base of the hair bundle.

FIG. 18 is an explanatory diagram showing a first arrangement state of synthetic fibers having different diameters inserted into the respective cylinders of the fiber positioning member of FIG.

FIG. 19 is an explanatory diagram showing a second arrangement state of synthetic fibers having different diameters inserted in each cylinder of the fiber positioning member of FIG. 14.

FIG. 20 is an explanatory diagram showing a third arrangement state of synthetic fibers having different diameters inserted in each cylinder of the fiber positioning member of FIG.

FIG. 21 is an explanatory view showing a fourth arrangement state of synthetic fibers having different diameters inserted in each cylinder of the fiber positioning member of FIG.

22 is an explanatory view showing a fifth arrangement state of synthetic fibers having different diameters inserted into the respective cylinders of the fiber positioning member shown in FIG.

FIG. 23 is an explanatory view showing a state in which a bundle of synthetic fibers respectively fed from a plurality of bobbins is inserted into a fiber positioning member through a guide.

FIG. 24 is a front view showing a flexible thin plate member of another fiber positioning member.

FIG. 25 is an explanatory view showing a state in which a flexible thin plate member is wound and inserted into a tubular member to form a through hole.

FIG. 26 is a plan view showing a fiber positioning member used when producing the hair bundle of Example 2;

FIG. 27 is a cross-sectional view showing an arrangement state of animal hair in a conventional hair bundle.

[Explanation of symbols]

1 synthetic fiber 1a tip 1b base end 2 hair 3 bases 4 plane part 6 Fiber positioning member 7 through holes 19 Flexible thin plate member 20 tubular member L mutual interval

Continuation of the front page (56) Reference JP-A-11-99788 (JP, A) JP-A-7-257088 (JP, A) JP-A-52-152324 (JP, A) JP-A-50-65693 (JP , A) Actual development Sho 55-42504 (JP, U) Actual development 6-7983 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B43K 1/12 B05C 17/10 A45D 34/04 510 A46D 1/04

Claims (5)

(57) [Claims] 1. A hair part comprising a plurality of synthetic fibers, and a base for connecting the base ends of the plurality of synthetic fibers to each other,
In a hair bundle impregnated with a liquid substance and used for coating, writing, drawing, etc., the base is a plate in which the base ends of the synthetic fibers are melted, cooled and solidified, and the synthetic fibers are combined and bundled. And the synthetic fibers are arranged in a non-contact state, and the area ratio of the synthetic fiber nonexisting region in the region defined by the base size of the bristle portion is 30% to 85%. A hair bundle, wherein a fluid outflow void is formed in a portion of the table where the synthetic fiber is not arranged. 2. A hair part comprising a plurality of synthetic fibers, and a base for connecting the base ends of the plurality of synthetic fibers to each other.
In a hair bundle that is impregnated with a liquid material and is used for coating, writing, drawing, or the like, the hair portion includes a plurality of synthetic fiber bundles in which a plurality of synthetic fibers are bundled, and the base is the plurality of synthetic fiber bundles. The base end portion of the synthetic fiber is melted, cooled and solidified to form a plate shape in which the synthetic fibers are combined and integrated to be bundled, and the synthetic fiber bundles are arranged in a non-contact state, and have a base portion size of the bristle portion. The area ratio of the synthetic fiber non-existing region in the defined region is 3
It is 0% to 85%, and the hair bundle is characterized in that a fluid outflow void is formed in a portion of the base where the synthetic fiber bundle is not arranged. 3. The hair bundle according to claim 1, wherein the hair portion is made of two or more kinds of synthetic fibers having different shapes. 4. The diameter of the synthetic fiber arranged in the central area of the flat portion of the base and the diameter of the synthetic fiber arranged in the outer peripheral area surrounding the central area are different from each other. Hair bundle. 5. The diameter of the synthetic fiber arranged in the central row region of the flat portion of the base and the diameter of the synthetic fiber arranged in both the row regions on both sides of the central row region are different from each other. 2. The hair bundle described in 2 .