JPS623996A - Liquid supply body made of composite fiber - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is applicable to manicure pens using high viscosity, high II mark ink, pen nibs of writing pens, ink absorbers, intermediates between the nibs, and various other materials. Particularly sufficient ink 70-
11 Composite fiber Iff liquid supply body useful for applications requiring - (Prior art) A typical example is JP-A-60-25798g.

This invention proposes a technical content for forming a relatively large hole passing through in the axial direction in the radial cross section of a bundle of heat-setting l1M fibers.

However, when the mold is heat-set, the temperature inside the mold becomes lower due to the temperature difference between the inside and outside of the mold, making it difficult to mold a well-defined hole. This becomes more noticeable as the outer diameter of the molded product increases. Although it is possible to sufficiently heat the inside and fix it by heat, the judicial stability would be extremely poor due to heat shrinkage.

Moreover, even if there are multiple holes in the diameter cross section, the phase T
Since it does not have a communication path that directly connects the two, it is technically insufficient to interflow the electrostatic liquid.

Furthermore, the loop is immersed in a resin solution to bind the single fibers,
During the drying and curing process, it tends to lose its shape and become unclear.

Regarding the porosity between each lltIl, the fiber H density must be lowered to ensure the flow of high viscosity liquid. Not only does this cause a problem in C1 dimensional stability, but it also becomes difficult to obtain uniform -t7 dispersion of the fibers in the diameter cross section. &! Dark blue density difference (blocking phenomenon) is likely to occur.

■Also, single I&! Matching of navy blue and resin, resistance to resin and ink (chemical resistance, solvent resistance) is always S! i!
+,,,, If not, 2t et al., use and application will be limited.

During the polishing stage of forming the product into a product shape, chips other than the hole portion and the outer circumferential portion often suffer from cutting defects such as so-called flakes due to the insufficient binding force of the resin.

Furthermore, as a liquid supply body for low viscosity ink, one made of composite fibers has been proposed in Japanese Patent Publication No. 51688, etc.

However, the liquid supply body that refuses is not suitable for high viscosity and high concentration ink. In other words, since the composite fibers are bundled while applying tension, they have a high density of approximately 70% or more, and a porosity of 30% relative to the diameter cross-sectional area.
%, and the leakage of high viscosity and high concentration InV cannot be expected at all.

(Problems to be Solved by the Invention) The FIn point to be solved by the present invention is that the main passage having an irregular diameter cross-sectional shape has a clear hole shape such as a doll shape, a 9M shape, etc.? In addition, both the sub passages between #iXH have excellent ink flow, have moderate flexibility, and do not have any of the problems of conventional products.

(Means for solving the problems) The means taken by the present invention to achieve the above problems are as follows:
Each composite fiber has directionality in the axial direction and has a core with a high melting point covered with a jacket part with a low melting point, and the jacket parts are partially thermally fused together. and a main passage having an irregular diameter cross-sectional shape along the axis, and are self-attached to the phase n, forming a bundle-like structure.

(Example) An example of the implementation of the present invention will be described in detail below based on the drawings.

In the figure (A> is a liquid supply body, and this liquid supply body (A)
Each composite II fiber (1) is in the form of 1 fill 1 bundle with directionality in the axial direction, and the core part (1a) with a high melting point is covered with the jacket part (1h) with a low melting point. 1h) A secondary passageway (3)' is formed between each IJAN by partial heat fusion in the axial and radial directions, and a main passageway (2) with an irregular diameter cross section along the axis is formed. It is attached to itself.

The porosity of the main passage (2) and the sub passage (3) is adjusted to a diameter cross-sectional area ratio of 50 to 90% for both.

The main passage (2) has an irregular diameter cross-sectional shape in the shape of a doll, a cross, a star, and various other similar shapes, and its occupation rate with respect to the diameter cross section is 10 to 70%, preferably 20 to 40%, and each slit ( 2a) The width is 0.2 to 4.0 m/+++, preferably 0.5 to 2.0 m#a.

The sub passage (3) is formed between each line H (1) and communicates with the main passage (2), and its porosity with respect to its diameter cross section is 30-85%, preferably 40%, excluding the main passage (2). ~75
%.

Composite fiber H(1) is sliver-like or 1. It is an L filament of 1 to 20 d (denier), and the core (
The melting point difference between 1a) and the outer covering (1b) is desired: or 20°C
In the above, the more difference there is, the better.

As a result, the core portion (1a) has a small thermal shrinkage rate and good dimensional stability.

Part 8 (1a) of this compound m miscellaneous (1) is Borip Nippyren,
The outer covering part (1b) is made of polyolefin polymer, nylon 6, etc., and specific composite fibers are shown in the table below.

Desirably, it is an O composite fiber.

-〇- Also, for the denier of composite 141i1 (1), 1 to 2
The denier is appropriately selected within the range of 0 (1), but in order to avoid the mH blocking phenomenon, it is preferable that the denier be as small as possible.

Example ■ Composite fiber H (1) of the above ■ with a single yarn denier of 6 d was made into 11 fibers/
M is processed into a sliver, and it is heated in the heating part of the molding part ff1 (B) in a nearly tension-free state (by blowing l into the heat) Sea Turtle 205-2
10℃, hot air outlet temperature 140℃, 1i1JTO, 5k
(1/c11) (B+), passed through the molding part of an 8φ nozzle (heating temperature: 105°C) (B2), and was pulled out at a speed of 0.2 m/1n.

The liquid supply body (A) molded in this manner has a diameter of 8φ, and has a clearly cross-shaped main passage (2) in the center of its diametrical cross section, which is approximately the same shape as the mandrel (B3). The occupancy rate of (2) is 22%, the porosity of the sub passage (3) is 68%,
The overall porosity including both passages (2) and (3) is 75%. In addition, in the same supply body (A), no blocking phenomenon of fibers was observed, and sufficient self-fusion of mH was observed both inside and outside.
Example in which moderate flexibility was achieved (Fig. 1) ■ 700 multifilaments of 200 d consisting of single yarn denier 10 d O composite [ff (1) were collected and wound around a beam, and this was approximately Heating section in a tension-free state (hot air blowing temperature 230℃, hot air output IT1m thin 180℃, wind pressure 0.
5 ko/a/ ) (131) and passed through a molded part (heating temperature 200° C.) of a nozzle of 8φ (B2) and pulled out at a speed of 0.2 m/1 n.

The liquid supply body (A) molded in this manner has a diameter of 8φ, and has a main passage (2) of a doll with a clear shape that is approximately the same shape as the mandrel (B3) at the center of its diameter cross section. The occupancy rate of 2) is 25%, the porosity of the sub passage (3) is 65%, and the total porosity of both passages (2) and (3) is 74%. In addition, in the same supply body (A), no blocking phenomenon of tian was observed, self-fusion of 1 minute of fibers was observed both inside and outside, and it had appropriate flexibility (FIG. 4).

Example ■ Composite 11111 (1) of the above O with a single yarn denier of 6d is 1
Process the sliver to 1 tusk/m and pass it through a heating section (hot air blowing temperature 205-210°C, hot air outlet temperature 140°C, wind pressure 0.5 ka/ant) (B+) in an almost tension-free state. Molding part of 8φ nozzle (heating temperature 105℃>
(82) and pulled out at a speed of 0.2 m/sin.

The liquid supply body (A>) formed in this way has a diameter of 8φ, and has a clear cross-shaped main passage (2) in the center of its diameter cross section, which is approximately the same shape as the mandrel (B3), and a main passage (2) on the nozzle side on the outer peripheral surface. protrusion(
It has a plurality of vertical grooves (4) with a clear shape that is approximately the same as B4), and the occupancy rate of the main passage (2) is 22%, and the occupancy rate of the vertical grooves (4) is 12%. , the porosity of the sub passage (3) is 7
0% Te, both passages (2) (3) tL [[1 (4) combined 1
=Total porosity is 80%. Further, in the same supply body (A), no blocking phenomenon of fibers was observed, sufficient self-fusion of fibers was observed both inside and outside, and it had appropriate flexibility (FIG. 5).

-〇- Figure 6 shows a writing pen nib (A1) as a specific example of the liquid supply body (A) of the present invention, and this pen nib (
A1) is the body part (1
0) is a rectangular diameter cross section.

Square, polygon, etc., it has a round bar shape on the drawing, and the tail end (11
) is in the shape of a truncated cone, and the tip (12) is polished and shaped into a conical shape.

This pen nib (A1) has a tip (12) and a tail (1).
There is no looseness in the entire body including 1), there is no restriction on the writing angle, and the tip (12) has appropriate flexibility to ensure a soft writing feel. Combined with (2), the appropriate valve action (bumping effect)
several hundred cps of high viscosity, high concentration ink was applied to the tip (1
2) It can be extruded from.

FIG. 8 shows a pen nib (A2) for a maniki appen as another specific example. It is shaped like a round bar, with a tail end (11) shaped like a truncated cone, and a tip end (12) polished into a flat tapered shape.

This pen tip (A2) has a tip part (12) and a tail part (1
There is no looseness in the entire body including 1), and due to the moderate flexibility of the tip (12), it flexes moderately along the nail, guiding hundreds of cps of nail polish ink to the nail, and the flexibility of the whole n. This, together with the main passage (2), provides an appropriate valve action (
The nail polish ink of high viscosity and high ionicity can be extruded from the tip (12).

Next, as an example of incorporating the liquid supply body of the present invention, the body of a pen, for example, a maniki core pen, will be described as follows.

Body structures used for applying and discharging liquids such as high viscosity and high concentration ink can generally be divided into the following three types.

1) A structure in which the pen tip, which is slidably attached to the tip of the body and is attached to the IJ, is pressed against the coating surface, etc., and the liquid is discharged by a so-called valve action that opens and closes a valve mechanism in the body. (Actual G@Sho 57-111586) 2) Structure that opens and closes the valve by pressing the butt end of the body and supplies liquid to the pen tip at the tip of the body (Japanese Patent Laid-open No. 6 O-1
(No. 17396) 3) The body itself is made of a flexible tube, and the liquid is supplied to the tip of the body by pressing the center with your finger (side knock method).The disadvantage of structure 1) is that It is relatively complex, and the pen tip used must be strong enough to prevent it from being deformed or crushed by the pressure applied when opening and closing the valve, so a so-called brush-touch pen tip cannot be used. Furthermore, it is unavoidable that the liquid flows out more than necessary between opening and closing of the valve, and it is impossible to supply a high viscosity liquid of several hundred cps because it is impossible to expect the liquid to drop under its own weight. ! ``Closed structure 2) is a modified version of M4 structure 1).
Although it is possible to use a pen nib made of a relatively soft material with a knotted touch, similarly to structure 1), it is difficult to adjust the liquid spacing and use high viscosity liquids. Also, a common drawback of 1) and 2) is that it cannot be knocked while writing.

The above structure 3) solves the drawbacks of the above structures 1) and 2), and is extremely useful when used in conjunction with the pen nib of the present invention. An example is given in FIG. To briefly explain the drawing, the body (10) is generally made of a flexible tube and is filled with a high-quality liquid (nail polish ink), and the pen tip (A1) is screwed into the body (10). , fM fitting, press-fitting, thermal melting, etc., but generally removable fixing means are preferred.

The liquid in the body is supplied to the pen tip (A1) by finger pressure, and is transferred from the tip of the pen tip to the application surface. At this time, since the amount of liquid supplied can be adjusted while controlling the applied surface, there is no dripping or scratching of the applied surface due to insufficient supply, which is extremely favorable.

(Effect of the invention) Therefore, the present invention has the following advantages.

■ Composite fibers self-fuse using their own outer sheath as a binding medium, and there is almost no problem of heat shrinkage in the core, so the main passage can be clearly shaped and managed to have an irregular cross-sectional shape. It has excellent shape and dimensional stability, and extremely high productivity.It also increases the occupation rate of the diameter cross section, and each slit spread in each part of the diameter cross section communicates with the phase n, resulting in high viscosity and high concentration. The liquid can flow out while being mutually guided in flow.

■! The lN is uniformly dispersed, and there is almost no difference in fiber density between the inside and outside (there is no blocking phenomenon, the secondary passage has a uniform pore state, and together with the -t arrangement, the ink flow is It has excellent properties and can smoothly drain high viscosity and high concentration liquids.

■ The fibers are self-bonded to each other, so there is no sticking spot or lack of binding strength, and when shaping the product shape, there is no cutting tool R4 due to mH barbs, allowing for the desired shape according to various uses. The binding can withstand writing pressure without breaking and can be formed into a uniform shape. It can also push out high-viscosity, high-degree-III liquids by exerting an appropriate valve action, making it suitable for a variety of applications.

■Resin 8K is unnecessary, and other issues such as solution selection, drying, i-=+Aling hard/soft 1~ selection, Mig 1 nosion, resin curing, and bonding strength are not considered. Due to its high resistance, there are almost no ink restrictions, making it useful for a variety of applications.

■ Due to the main passage having an irregular diameter cross-sectional shape, it is useful for writing with no restrictions on the writing angle of the pen tip.

[Brief explanation of drawings]

FIG. 1 is a J-diameter sectional view showing an embodiment of the liquid supply body of the present invention. Figure 2 is a side view. Figure 3 is a radial cross-sectional view of the composite fiber. 4 and 5 schematically show other embodiments of the liquid supply body.
Diameter cross-sectional view. FIG. 6 is an enlarged side view showing a writing pen tip as a specific example, and FIG. 7 is a front view of the same. Figure 8 is an enlarged view of the person's back showing a pen nib for Manikikoaben as a specific example.
The figure is a side view of the same part. FIG. 10 is a vertical sectional view schematically showing a molding apparatus for a liquid supply body of the present invention. FIG. 11 is a partially enlarged longitudinal cross-sectional view of a molding section for molding a liquid supply body having the radial cross section shown in FIG. Figure 12 shows a liquid supply body with the diameter cross section shown in Figure 4! v
FIG. 1 is a partially enlarged vertical cross-sectional view of the 1-Ruru molding part. FIG. 13 is a partially enlarged vertical cross-sectional view of a molding section for molding a liquid supply body having the diameter cross section shown in FIG. Figure 1/'I is a plan view of the maniki core pen incorporating the pen tip shown in Figure 8. In the diagram

Claims (1)

[Claims] Each composite fiber has directionality in the axial direction and has a high melting point core covered with a low melting point sheath. A composite fiber liquid supply body for high viscosity and high concentration ink in the form of a fiber bundle that is self-adhered to each other and forms a main passage with an irregular cross-sectional shape along a line.