JPS584112B2 - Processing method for chemical fibers for makeup brushes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating chemical fibers for makeup brushes used for applying blusher, applying shaving liquid, etc.

In the olden days (before the Pacific War), materials for makeup brushes were:
Soft animal hair, such as white and red horse hair, deer bone, etc., was used exclusively, but after the war, after the introduction of chemical fiber technology from foreign countries, especially the United States, Both hair and chemical fibers have been used in combination, but today, due to cost, chemical fibers are overwhelmingly used more than animal hair.

However, the cross-sectional area of chemical fibers is the same everywhere, that is, it is gradually thinner like the tip of animal hair, in other words, it is not sharp, so a single chemical fiber can be used to make a makeup brush. When it comes to objects, it is impossible to obtain the soft touch feeling of animal hair.

The present invention has been made with attention to the above points, and its purpose is to use chemical fiber as a material and make it tapered like animal hair, that is, to obtain a soft touch feeling similar to animal hair. The present invention provides a method for treating chemical fibers for cosmetic brushes.

Next, an embodiment of the method of the present invention capable of achieving the above object will be described in detail with reference to the accompanying drawings.

Figure 1 shows the basic concept. In the figure, 1 is a processing container, 2 is a processing liquid inlet pipe opened at the bottom of the processing container 1, and 3 is a processing liquid inlet pipe. 2 is an integrally constructed discharge pipe, and 4 is an overflow pipe.The discharge pipe 3 is formed in a tapered shape that widens as it reaches the top, and has numerous liquid jet holes on the top surface. 3a is pierced.

Further, the overflow pipe 4 is fixed to an example of the processing container 1.

Reference numeral 5 indicates an operating rod that can be moved up and down and rotated, and in the illustrated example, the lower part is narrowed in a tapered shape, and this rod is lowered into the processing liquid (ml) at the center of the processing container 1. It is configured to be able to move or rise above the level of the processing liquid (ml), and to be rotatable as described above.

6 is a relatively hydrophilic chemical fiber, for example, a diameter of 0.05
A large number of chemical fibers such as acetate or vinylon having a weight of about 0.12 mm are bundled around the outer periphery of the operating rod 5, and the upper part thereof is fixed with a string 7 or the like.

Further, as the treatment liquid (ml), organic solvents such as ketones and esters are used.

That is, a material capable of dissolving the above-mentioned acetate, vinylon, etc. is used.

Then, the above-mentioned processing liquid (
ml) is constantly injected, and from then on, the operating rod 5 is rotated while moving up and down as described above.

In such a case, the chemical fibers 6 bundled on the operating rod 5 will be immersed in the processing solution (ml) for a longer time in approximately the lower half thereof, and as the lower limit is reached from the upper limit of the lower half. Coupled with the fact that the amount of fresh processing liquid (ml) that comes into contact with the area increases from the upper limit to the lower limit (Note: due to the dissolution of the chemical fibers 6, it becomes thinner as it approaches the liquid level and approaches the discharge pipe 3). It becomes difficult to obey.

) Also, the injection state of the processing liquid (ml) from the discharge pipe 3 (bale,
Sprays in a tapered and diffused manner.

) By spreading the substantially lower half of the bundled chemical fibers 6 into a fan shape as shown in the figure, the substantially lower half 6a of each chemical fiber 6
has a shape as shown in FIG. 2, that is, the upper limit 6al of approximately the lower half 6a
It is formed into a sharp shape that gradually narrows from the tip to the tip 6a2.

Next, an example of an apparatus for the chemical fiber processing method according to the present invention will be explained with reference to FIGS. 3 to 7.

9 is a base; 10 is a plurality of guide rods installed around the circumference of the base 9; 11 is a top plate for fixing the upper part of each guide rod 10;
2 is a fixed base plate whose peripheral end is fixed to each guide rod 10;
3 is a liquid receiving tank placed and fixed on the fixed base plate 12; 14;
15 is a vertically movable plate provided at the upper part of the liquid receiving tank 13 so that its circumferential end can move up and down relative to each guide rod 10; 15 is fitted into the center of the vertically movable plate 14 and is fixed with a pin 16 or the like; The vertically movable rod shown in FIG.

Further, a receiver 17 having a cam groove 17a is fixed to the lower end of the vertically movable rod 15.

Reference numeral 18 denotes a camshaft which is rotated by the prime mover via a speed reduction mechanism, to which a cam plate 18a is fixed eccentrically, and the circumferential side of this cam plate 18a is in sliding contact with the above-mentioned cam structure 17a. .

In addition, in FIG.
A plurality of processing containers (6 tanks in the embodiment) are arranged in 3 and fixed to the bottom plate of the liquid receiving tank 13, 2 is a processing liquid feed pipe branched from the main liquid feed pipe 19, 3 is a discharge pipe, and 4 is a The overflow pipe flowing down into the liquid receiving tank 13, the operating rod 5, and the chemical fiber 6 are shown, but the detailed structures and functions of these are the same as those explained in Figs. 1 and 2. It is.

Further, reference numeral 20 indicates a drain pipe extending from the bottom of the liquid receiving tank 13.

The upper part of each operating rod 5 is supported on the vertically moving plate 14 so that it can rotate and move up and down simultaneously with the vertically moving plate 14 (for example, two rings 2 fixed to the operating rod 5 as shown in the drawings).
1) Also, a turntable 5a is fixed in the middle.

The turntable 5a is rotated as follows.

In FIGS. 5 and 6, 22 is a motor installed on the vertical moving plate 14, 23 is a drive shaft having a bevel gear 23a and a groove wheel 23b, and the bevel gear 23a is the bevel gear 22a of the motor shaft.
is engaged with.

Reference numeral 24 indicates the same number of driven shafts as the operating rods 5, which are mounted vertically on the vertically moving plate 14, with a groove wheel 24a at the top of the vertically moving plate 14, and a bevel gear 24b at the bottom of the vertically moving plate 14. , are fixed respectively.

(See FIG. 3) Then, the groove wheel 2 of the drive shaft 23 described above
A belt 25 is wound around the groove wheel 24a of each driven shaft 24.

In FIG. 4, 26 indicates a bevel gear 26a and a rubber ring 26b, the bevel gear 26a is meshed with the bevel gear 24b of the driven shaft 24, and the rubber ring 26b is connected to the turntable 5a of the operating rod 5.
It is slid onto the top.

Therefore, each turntable 5a is connected to the prime mover 22 via the bevel gear 22a of the drive shaft 23, the bevel gear 23a1 of the drive shaft 23, the groove wheel 23b1, the belt 25 which is wound around the groove wheel 24a of each driven shaft 24, and via the above-mentioned interlocking mechanism. It rotates slowly.

The rotating structure of the operating rods 5 in these devices can be modified in design in addition to those described above, as long as the required number of operating rods 5 are rotated synchronously at low speed. .

Fig. 7 is an explanatory diagram of the entire device, where 1 is a processing container, 2 is a processing liquid feed pipe, 4 is an overflow pipe, 19 is a main liquid feed pipe, 2
0 is a drain pipe, 27 is a pressure control pump, 28 is a stirrer, 2
9 is a metering pump, 30 is a drainage tank, 31 is a pressure tank, 3
2 is a filtration tank, 33 is a treated liquid tank, 34 is a diluted liquid tank, 3
3a and 34a are control valves, 35 is a mixing tank, and 36 is a processing liquid tank, and the processing liquid from the processing liquid tank 36 is fed through a metering pump 29, a main liquid pipe 19, and a plurality of processing liquid feed pipes 2. K is spouted into each processing container 1 as described above, and the drained liquid flows down from the processing container 1 into the liquid receiving tank 13 via the overflow pipe 4. The liquid is pumped into a filtration tank 32 by a pump 31 and filtered there, and enters a mixing tank 35.

On the other hand, the processing stock solution in the processing stock solution tank 33 and the thinning solution in the thinning solution tank 34 enter the mixing tank 35 through the control valves 33a and 34a, and in this mixing tank 35, the above-mentioned chemical fiber 6 The solution mixed in the optimum condition for the treatment of
It falls into the 6th category.

The flow of the liquid, the concentration of the processing liquid, the feeding pressure to the processing container 1, the vertical and rotational movements of the operating rod 5, etc., as described above, are all automatically controlled by the computer.

The inventor and applicant are currently conducting a trial production experiment to use the chemical fibers treated as described above as hair for making brush tips. The invention involves fixing a large number of comparatively hydrophilic chemical fibers, such as acetate and vinylon fibers, around the outer periphery of an operating rod with their upper portions bunched together. The organic solvent is connected and spouted from the bottom of the processing container, and while the organic solvent is allowed to overflow, the above-mentioned operating rod is moved up and down and rotated at low speed, whereby approximately the lower half of the bundled chemical fibers is By repeating the movement of lowering it into the organic solvent or raising it above the liquid level together with the rotational movement,
The gist of the present invention is a method for processing chemical fibers for cosmetic brushes, which is characterized in that each of the bundled chemical fibers is formed into a pointed shape that gradually narrows from approximately the lower half to the tip. It is possible to achieve the desired purpose well.

[Brief explanation of the drawing]

The drawings show an example of an apparatus used in an embodiment of the method for treating chemical fibers for cosmetic brushes according to the present invention. 3 to 6 are front views of fibers for cosmetic brushes obtained by the method of the present invention.
The figure shows an example of equipment used in mass production, and Figure 3 is similar to Figure 5.
- Front view when cut along the line (However, various mechanisms that naturally appear behind the cut line are omitted, and some parts are not cut away.) Figure 4 shows the vertical movement of the actuator. Fig. 5 is a side view of the cam structure for moving back, Fig. 5 is a sectional view taken along the line V-V in Fig. 3, Fig. 6 is a sectional view taken along the line VI-Vl in Fig. 5, and Fig. 7 is an explanatory diagram of the entire device. be. 1... Processing container, 2... Processing liquid feed pipe, 4... Overflow pipe, 5...
Operating rod, 6... Chemical fiber, 6a... Approximately lower half, 6a2... Tip.

Claims (1)

[Claims] 1 Relatively hydrophilic chemical fibers, such as acetate,
A large number of chemical fibers such as vinylon are fixed around the outer periphery of the operating rod with the upper part concentrated, and on the other hand, ketones,
Organic solvents such as esters are connected and spouted from the bottom of the processing container, and while overflowing,
The operation rod is moved up and down and rotated at low speed, thereby lowering approximately the lower half of the bundled chemical fibers into the organic solvent and raising it above the liquid level.
A chemical fiber for a makeup brush, characterized in that by repeating the rotational movement as described above, each of the bundled chemical fibers is formed into a pointed shape that gradually narrows from approximately the lower half to the tip. processing method.