JPS60862A - Electrostatic flocking method - Google Patents

Abstract

PURPOSE:To perform flocking with improved flocking quality without spoiling versatility by forming a perforated high voltage electrode into the shape conforming nearly exactly with the shape of a material to be flocked having an intricate shape. CONSTITUTION:A net-like high voltage electrode 10 is so manufactured as to have surfaces 11-13 which face a material 20 to be flocked having an intricate and steeply rising vertical surface part and are adapted to parallel with a plane part 21 perpendicular to the falling direction of piles 1 onto the material 20 and a vertical surface part 22 relatively gentle with respect to the falling direction of the pipes and to incline by 20-60 deg., more preferably 30-60 deg., relative with the falling direction of the piles 1 to a rising vertical part 23 roughly parallel with the falling direction of the piles 1. Then the material to be flocked is flocked to uniform quality.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrostatic flocking method, and more particularly, to a method for flocking miscellaneous goods having a three-dimensional shape. This involves an electrostatic flocking method that aims to improve the quality of down-type flocking.

Short fibers, fiber waste, several deniers, 0.5 to 5 mm in length,
Leather scraps, etc. (hereinafter collectively referred to as pile).

When down flocking is performed using a conventional flat perforated high-voltage electrode as shown in Figure 1, the pile anchor density, that is, the flocking density, may be uneven in the flocked object with a complicated vertical surface. However, there is a drawback that uniform quality of hair transplantation cannot be obtained.

Therefore, when using a flat perforated high voltage electrode.

The density of the vertical part is insufficient compared to the flat part, and the pile collapses in the direction of gravity. In order to prevent so-called "pile collapse," the object to be flocked is rotated relative to the planar perforated high-voltage VIl electrode, or the shape of the perforated high-voltage electrode is made to follow the shape of the object to be flocked. ing.

However, when rotating an object to be transplanted, the expected effect may not be obtained depending on the setting of the axis of rotation, except for cases where the object is in the shape of a rotating body.

The distance between the perforated high-voltage electrode and the grounded object,
So-called 1! To keep the distance between iJi constant.

There is a problem in that the rotating jigs, devices, etc. are complicated and expensive.

Furthermore, as shown in Figure 2, when the shape of the perforated pressure electrode is made to follow the shape of the object to be flocked so that the distance between the electrodes is constant, the uniformity of the two qualities is considerably improved. However, depending on the shape of the object to be transplanted, the perforated high-voltage electrode may need to have a concave shape.

In that case, piles may accumulate in the four parts of the perforated high-voltage electrode, resulting in an insufficient amount of pile anchorage to the flocked product, or in order to ensure the amount of pile falling to the vertical surface.

The hair transplanting time has to be extended, which causes problems such as reduced productivity.

The present invention solves the above-mentioned problems in the conventional electrostatic flocking method, and has a complex and deep vertical surface. In addition to improving the quality of flocking on the vertical surface of three-dimensional flocked objects.

A target material can be transplanted with uniform quality without reducing productivity. The purpose is to provide an electrostatic flocking method.

According to the invention, two such objects are provided: a pile for planting on a plant to be transplanted; Located at the bottom of the pile hopper. The pile was evenly distributed and dropped through a sieve, and the falling pile was placed between the sieve and the grafted material. When passing through a perforated high-voltage electrode, an electrostatic charge is applied, and it is fixed on a ground electrode that has been grounded in advance.

The adhesive is electrically attracted onto the wall-covered material,
In this electrostatic flocking method, the perforated high-voltage electrode has a shape that roughly follows the shape of the object to be flocked, and has an acute-angled vertical surface that is nearly parallel to the falling direction of the pile. This is achieved by an electrostatic flocking method characterized by tilting the perforated high-voltage electrode by 20 to 60 degrees to ensure the amount of pile fall and to prevent the pile anchoring force from decreasing due to an increase in the distance between the electrodes.

Hereinafter, two aspects of the present invention will be described in detail based on the accompanying drawings.

An embodiment of the present invention will be described with reference to FIG. 3 regarding the configuration of an apparatus.

The pile 1 is arranged above the perforated high voltage electrode 1o.
Sat'L f: An appropriate amount of pressure tum is placed in the pile hopper 2 and dropped from the sieve 3 at the bottom of the pile hopper 2 by means such as vibration.
10 is insulated and fixed between the material to be flocked 2o and the pile hopper 2, and is connected to a high pressure generator to generate 2 by a high 2u pressure of negative or positive 10 to 100 kV.
A T# voltage can be applied to the passing pile 1, either negative or positive.

Further, a flat portion 21. And, with respect to the falling direction of pile 1,
Parallel to the relatively gentle elevation part 22,
For the steep vertical surface 23 that is almost parallel to the direction of pile 1 fall, 20~60', W
Preferably, the reticular high voltage electrode 10 is manufactured so as to have surfaces 11, 12, and 13 that correspond to the object to be transplanted and have slopes of 30 to 45 degrees.

Note that the flocked object 2o is grounded.

Next, the operation of this embodiment will be described.

Pile 1 is prepared in an appropriate amount from a pile hopper of 2 yen using an appropriate means such as a vibrating brushing roll.

For example, 100-500g/m! It falls by a minute.

When the pile 1 passes through the mesh high-voltage electrode 10, it is negatively charged due to electrostatic induction, and the grounded material 2
0, and was applied onto the flocked object 20 in advance.

Anchored in an adhesive layer such as acrylic emulsion.

The anchored pile 1 now becomes positively charged.

In order to overcome the surface tension of adhesive and anchor.

The strength of the flying force is important, and the flying force is determined by the reticular high voltage electrode 10.
Therefore, it is proportional to the ratio E/d of the applied voltage E and the inter-electrode distance d between the reticular high-voltage electrode 10 and the object to be transplanted 20.

Therefore, the flat part 21 and the vertical part 22 of the hair-planted object 20
In this case, since the distance between the poles is the same, a flocked surface of the same quality can be obtained.

However, in the other vertical portions 23, the reticular high-voltage electric current tTh13 has an inclination of 20 to 60 degrees, so the distance between the poles becomes large, but this inclination ensures a sufficient amount of fall of the pile 1. The same quality of flocking as that of the flat part 21 and other vertical parts 21 can be obtained.

Incidentally, in this embodiment, the net-like high-voltage electrode 10 is negative and the hair-planted object 20 is positive, but even if the net-like high-voltage electrode 10 is positive and the hair-planted object 20 is positive, the effect of the present invention will not be affected.

Next, in order to compare the hair transplantation effects of the two methods of the present invention and the conventional method, the following experiment was conducted.

A with a mouth shape with a - side of 200 mm as shown in Figure 4.
The flocked object 20 made of a molded product made of BS resin was tilted in the falling direction of the pile 1 by 30 degrees on one vertical surface and 45 degrees on the other vertical surface. Using the reticular high-voltage electrode 10, the base of the hair transplanted material is preliminarily applied.

Ton Synthetic Aron FA-4D acrylic emulsion,
250-300 g/mt in wet state
After applying it uniformly, the distance between the poles on the flat part was set to 59 mm, and the reticular high voltage electric lI! A voltage of 20 kV was applied to 1i10.

Approximately 350 g of 1 mt of nylon fiber 1 of 3 denier, 1, Q mm was dropped from above, and the hair was implanted for 1 minute.

As a result, the flocking density (approximately 130 g/mt) equivalent to that of the flat part was obtained in all vertical parts.

As shown in FIG. 1, hair transplantation was performed on a similar hair transplanted object 20 under the same conditions using a reticular high voltage electrode 10 parallel to the flat surface of the object.

As a result, a flocking density equivalent to that of the method of the present invention was obtained on flat surfaces, but on vertical surfaces, the lower the area, the lower the density of flocking, and the density acceptable for the product could not be obtained in the lower regions. Ta.

In addition, as shown in FIG. 2, hair was transplanted to a similar hair-planted object 20 under similar conditions using a reticular high-voltage electric tdJilO having the shape of the hair-planted object 20, with the distance between poles being constant at 59 mm. In the vertical section with a standing depth of about 100 mm from the flat section, the flocking density was almost the same as that of the flat section, but
Above that level, the flocking density rapidly decreased.

However, if the hair transplantation time is extended to 2 minutes.

Habo 1 The same quality as the method of the present invention was obtained.

The results of these experiments are shown in FIG.

The vertical axis shows the flocking density, and the horizontal axis shows the standing depth of the plane force ζ on the vertical surface.9 The results obtained by the method of the present invention 31 and the results obtained by the conventional planar reticular high-voltage electrode 10) 32° and the flocked hair. A comparison result 33 obtained by using the reticular high voltage electrode 1 that follows the shape of the object 20 is shown.

Note that it is also advisable to slightly vibrate the mesh-like high-voltage electrode 10 to prevent the pile 1 from accumulating on the mesh-like high-voltage electrode 10.

As is clear from the foregoing, the electrostatic flocking method according to the present invention has a complicated and steep vertical section. For a three-dimensional hair transplanted object, by making the perforated high-voltage electrode suitably follow the vertical surface of the hair transplanted object, it is possible to create a perforated object with exactly the same shape as the hair transplanted object. Since the high-voltage electrode with a high-voltage shape is used, the versatility of the perforated high-voltage electrode is not compromised, and the quality of flocking on vertical surfaces is improved. There is an advantage that the hair can be transplanted with uniform quality.

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing a hair transplantation method using a conventional planar, perforated high-voltage electrode, and Figure 2 is a schematic diagram showing a hair transplantation method using a perforated high-pressure 'R$iS' modeled after the conventional hair transplant target. Figure 3 shows an embodiment of the hair transplantation method according to the present invention.
FIG. 4 is a schematic diagram showing another embodiment of the hair transplantation method according to the present invention, and FIG. 5 is a diagram showing experimental results of hair transplantation density distribution by the method of the present invention and the conventional method. l...Pile 2...Pile hopper 3...
... Sieve 10 ...... Perforated high voltage electrode 11 ...
...Flat part 12, 13... Slanted part 20 ... Flocked object 21 ... Plane part 22, 23...・Vertical tube part 31... Method of the present invention 32... Planar perforated high voltage electrode flocking method 33
・・・・・・・・・ Hair transplantation method using perforated high-voltage electrodes that imitate the object to be transplanted Fig. 1 Fig. 2 Fig. 30 Fig. 4 Standing depth (mm) Fig. 5

Claims (1)

[Claims] (1) Supplying piles to be planted on the flocking material. Located at the bottom of the pile hopper. The pile was evenly distributed and dropped through a sieve, and the falling pile was placed between the sieve and the grafted material. This is an electrostatic flocking method in which an electrostatic charge is applied when the flock passes through a perforated high-voltage electrode, and the flock is electrically attracted and transplanted onto the flocked object, which is fixed on a pre-grounded ground electrode and coated with an adhesive. The perforated high-voltage electrode has a shape that almost follows the shape of the object to be flocked, and the perforated high-voltage electrode An electrostatic flocking method characterized in that the pile is tilted by 20 to 60 degrees to ensure the amount of pile fall and to prevent a decrease in pile anchoring force due to an increase in the distance between poles.