JP4748495B2 - Nib manufacturing method and nib - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a nib prepared from a fiber bundle and a nib used for various writing instruments such as a sign pen and a marking pen, or for cosmetic purposes.
[0002]
[Prior art]
Many nibs used for various writing instruments and cosmetic eyeliners are obtained by supplying a melt or melt of a thermoplastic synthetic resin such as polyester, nylon, or acrylic to a die at a predetermined pressure. It is comprised from the fiber bundle which bound the filament or sliver to be bound with a binder.
[0003]
Nib prepared from these fiber bundles, depending on or application for identification of the pen tip, that can be colored in advance has been conventionally.
As a method for obtaining a colored nib prepared from a fiber bundle, a method of using a colored fiber as a nib and a method of coloring a binder as a nib are generally employed.
[0004]
[Problems to be solved by the invention]
Among the methods of coloring the nib made of fiber bundles, the method of coloring the filament (long fiber type) or sliver (short fiber type) before binding obtained by the above method is to color the nib in a uniform and clean color tone. It has the advantages that can be done.
However, when it is desired to color the pen tip in various colors, fibers colored in the respective colors have to be prepared in advance, and there is a problem that small turning cannot be achieved.
[0005]
The fiber for manufacturing the nib is different from the mass-produced fiber, and is classified as an industrially special fiber, but it is further colored in various colors. There is also a problem that the cost becomes high because it becomes a custom-made product.
[0006]
In addition, the method of obtaining a nib colored in various colors by coloring the binder can easily change the color of the nib simply by changing the coloring material for coloring the binder. Ru can be colored in with a pen tip to the relatively clean tone.
On the other hand, when it is desired to make the color dark, partial unevenness is likely to occur in the adhesion of the binder, and in the part where the amount of adhesion of the binder is small, the color of the fiber greatly affects, and unevenness in the coloring of the pen tip. It has a problem that it occurs.
[0007]
As a result of intensive studies on the problems of the conventional method of obtaining a colored nib, the inventor did not use colored fibers but instead bound these fibers with a binder to form a nib having a predetermined shape. By directly dyeing, a method for obtaining a colored nib with which uniform coloring can be efficiently obtained, productivity is good, and cost is excellent is completed.
[0008]
[Means for Solving the Problems]
That is, the invention according to claim 1 of the present invention is
A method of manufacturing a nib, characterized in that a fiber bundle formed by binding synthetic fibers with a binder is colored by dyeing after being processed into a nib shape.
[0009]
The invention according to claim 2
In the manufacturing method of the nib of Claim 1,
Colored by the staining, coloring of the interior of the processed fiber bundle nib shape is suppressed, it is characterized in that it is intended to color the surface.
[0010]
The invention according to claim 3
In the manufacturing method of the nib of Claim 2,
The coloring by the dyeing is
The surface of the processed fiber bundle nib shape is colored, is characterized in that no, at least the central portion is colored.
[0011]
The invention according to claim 4
In the manufacturing method of the nib of Claim 2,
The coloring by the dyeing is
Coloring of the interior of the processed fiber bundle nib shape, a <br/> which, characterized in that thinner than the colored surface.
[0012]
The invention according to claim 5
In the manufacturing method of the nib in any one of Claims 1-4 ,
The staining is
It is characterized in that it is intended to be performed using a disperse dye.
[0013]
Further, the invention according to claim 6 of the present invention is
The fiber bundle formed by a synthetic fiber is bundled with a binder, it is characterized in that colored by staining after processing to the pen tip shape.
[0014]
The invention according to claim 7
The nib according to claim 6,
The fiber bundle processed into the pen shape,
Although the surface is colored, the heart or not colored, is characterized in that the coloring is thin.
[0015]
Further, the invention according to claim 8 is
The nib according to claim 6 or 7,
The coloring is
It is characterized in that which has been done in staining with disperse dyes.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
In this invention, the nib used for writing or cosmetic use is prepared from a fiber bundle, and its feature is that the fiber bundle is processed into a nib shape and then dyed and colored. It is in.
[0017]
The fiber bundle constituting the nib is a filament or sliver obtained by heating and melting a thermoplastic synthetic resin such as polyester, nylon, or acrylic, or dissolving it with a solvent and then supplying it to a die at a predetermined pressure. Is obtained by bundling with a binder, and after cutting to a predetermined length (about 20 to 35 mm), it is cut to prepare a predetermined pen shape.
[0018]
When the nib thus obtained is colored, in the present invention, a pre-colored fiber or a colored binder is not used, but a non-colored nib or a nib manufacturing process is heated to produce a yellow color. It is colored by dyeing an acrylic nib that has been changed to a color.
[0019]
Dyeing used for coloring includes ordinary dyes such as basic dyes, metal complex dyes, vat dyes, and the preferred dyes for this invention are disperse dyes.
[0020]
At the time of dyeing, the inventor initially post-dyed the nib with a water-soluble dye such as an acid dye, but when incorporated as a water-based marking pen, the water-soluble dye dissolves in the water-based ink and the writing line It has been found that there is a problem that the color of the ink and the color of the ink are different .
As a result , by using a disperse dye insoluble in water, the dye does not dissolve in the water-based ink, and it is difficult to cause discoloration of the color of the writing line, and there is no room for problems.
[0021]
Nib staining known procedures, for example, immersion in a dyeing liquid, Ru der made in such spray stain.
At that time, in order to avoid as much as possible the discoloration of the ink due to the mixing of the ink that oozes out from the ink reservoir built into the pen body and the dye used for coloring, the surface of the pen tip is also dyed uniformly. Rather, it is preferable that the interior is not colored as much as possible.
[0022]
As a means to leave actively portions not colored inside nib, and to adjust spray amount of immersion time and stain solution to stain the like spraying time.
However, the nib made of a fiber bundle originally has innumerable pores (capillaries) from the surface to the inside .
Therefore, unless the air present in the pores is positively removed, the staining solution penetrates only the pores on the surface of the pen tip during dyeing, and bubbles left inside the pen tip cause the staining solution to enter. ing in the form of block.
In addition, air bubbles left in the interior even during the dyeing process, not go out to the outside of the pen tip, remaining the center of the bubble is because there is no touching the staining solution, it will remain unstained.
[0023]
If you want to enlarge the unstained part in the center, soak the pen tip in water before immersing it in the dyeing solution, and then immerse it in the dyeing solution immediately after that. It is harder to penetrate inside the nib than the staining solution, and the air bubbles remaining when the pores on the nib surface are blocked by water are larger than when immersed directly in the staining solution. It will exist as colored.
[0024]
【Example】
Hereinafter, a method for manufacturing a nib according to the present invention and examples of the nib obtained by this method will be described in detail.
[0025]
<Example 1>
A filament made of polyester fiber is bound with a urethane resin, cut to a required length, and then a nib prepared in a predetermined shape is charged with 3.0% black disperse dye (% by mass of fiber), dyeing aid ( Salt) dyed for 30 minutes in a dyeing bath of 0.5 g / L, bath ratio 1: 100, pH 4.5, temperature 135 ° C.
In order to wash away the excess dye from the nib that had been dyed, reduction washing was performed for 20 minutes at a temperature of 80 ° C. using a soaping agent.
The obtained nib had a nib surface colored in black with a lightness of 1.5 with no unevenness, and an uncolored portion remained at the nib center.
When the colored pen tip dyed black by the above method was used as a marking pen, the dye was dissolved in the ink and the writing line was not discolored, so that the writing could be satisfactorily performed.
[0026]
<Example 2>
The same nib as in Example 1 was dyed with a blue dye (manufactured by Katsura Fine Goods; Cole Die Hot F71 Sax Blue) to obtain a nib colored with a lightness of 5 in blue.
When the colored pen tip dyed blue by the above method was used as a marking pen, the dye was dissolved in the ink and the writing line was not discolored, so that the writing could be performed well.
[0027]
【The invention's effect】
The manufacturing method of the nib of the present invention is a problem in obtaining a colored nib by coloring the nib prepared from a fiber bundle by post-dying with a dye when obtaining a colored nib. It has an excellent effect of being able to solve all the problems at once.
[0028]
In particular, after dyeing after processing the nib into a predetermined shape, the entire surface of the nib is colored, so a uniform colored nib can be obtained even in light or dark colors, and the dye can be changed. The color can be easily changed by simply doing this, and it is not necessary to use expensive colored nib fibers, so that the cost of manufacturing the colored nib can be reduced. It is done.
[0029]
Further, by coloring only the surface of the pen tip and leaving the inside uncolored, there is also an effect that it is possible to prevent the dye from dissolving in the ink and the writing line from being discolored.
[0030]
In the nib of the present invention, since the fiber bundle processed into the nib shape is colored by dyeing, the surface is uniformly colored, and the inside is kept undyed so that the dye dissolves into the ink. The writing line does not change color.

Claims (8)

A method of manufacturing a nib, characterized in that a fiber bundle formed by binding synthetic fibers with a binder is processed into a nib shape and then colored by dyeing. The coloring by the dyeing is
2. The method of manufacturing a nib according to claim 1, wherein the surface of the fiber bundle processed into a nib shape is suppressed and the surface is colored. The coloring by the dyeing is
The nib manufacturing method according to claim 2, wherein the surface of the fiber bundle processed into a nib shape is colored, but at least the center part is not colored. The coloring by the dyeing is
3. The method of manufacturing a nib according to claim 2, wherein the color of the fiber bundle processed into a nib shape is lighter than the color of the surface. The staining is
The method for producing a nib according to any one of claims 1 to 4 , wherein the method is carried out using a disperse dye. A nib characterized in that a fiber bundle formed by binding synthetic fibers with a binder is processed into a nib shape and then colored by dyeing. The fiber bundle processed into the pen shape,
The nib according to claim 6, wherein the surface is colored, but the central part is not colored or is lightly colored. The coloring is
The nib according to claim 6 or 7, wherein the nib is obtained by dyeing using a disperse dye.