JPS6051573A - Water surface transfer apparatus - Google Patents

Abstract

PURPOSE:To impart variety to a pattern due to water surface transfer, by arranging an air nozzle to the pattern planning part of a water surface transfer apparatus, and changing a pattern by injecting an air stream to a film diffused and developed on a water surface. CONSTITUTION:A water tank 1 is filled with water and the water surface 7 is divided into a paint sump part 2 and a pattern planning part 2a by a weir 3 while a predetermined amount of a paint floating on water is supplied to the paint sump part 2. Subsequently, the weir 3 is opened to diffuse the paint. A plurality of air nozzles 8 are provided above the water surface in front of a position where a building board 6 is thrown into the water surface 7 and blows air to the diffused film to branch the paint. In this case, by separately adjusting the opening and closing state of the individual nozzle 8, the branching and unification of stripe patterns 9 are enabled and the variety of the pattern can be expressed. Furthermore, air velocity is pref. about 0.2-0.7m/sec.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] This invention belongs to the field of painting technology, and more specifically belongs to the field of technology of patterning by water surface transfer method.

[Background technology] In the water surface transfer method, an aquarium is filled with water, and on the water surface,
This is a technique in which the paint is diffused to form a crotch of paint, and the object to be painted is applied to the surface of this coating to transfer the paint film to the surface of the object to be painted. It has been practiced since ancient times. Although this method has the disadvantage that the degree of freedom in the pattern that can be obtained is low, it also has the advantage that it can coat objects of any shape, whereas general coating methods can only be applied to flat surfaces. was purchased and is still in use today. Therefore, as a method of applying wood grain decoration to the surface of small plastic molded products with many curved surfaces,
The water surface transfer method was applied.

However, as mentioned above, makeup using the water surface transfer method can only be applied to paints with woodgrain patterns, and cannot be applied to paints with other patterns. The reason for this is that the paint used in this case is highly viscous with almost no fluidity, and is pulled out through comb-shaped slits placed on the water surface and forced to spread over the water surface. This is because it was used as a coating film. This point will be explained with reference to FIG. 1, which shows a conventional example.

FIG. 1(a) is a plan view showing a conventional water surface transfer device, and FIG. 1(b) is a side view, both of which are shown schematically. In this figure, 1 is a water tank, 2 is a paint reservoir, 3 is a weir, 4 is a comb-shaped baffle plate having slits 4a, 5 is a diffusion coating film, and 6 is an object to be painted, such as a construction board. , 7 is the water surface. Here, first, paint floating on the water surface is supplied to the paint reservoir 2, then 1813 is opened (the state shown in FIG. 1 (b)) to diffuse the paint, and then the comb-shaped baffle plate 4 slit 4a
By passing it through, the paint film becomes branched and has a streak-like pattern (
It had a wood grain fJI pattern).

However, as mentioned above, this method has a limitation in that it can only express woodgrain patterns. For direct improvement of these technical drawbacks, for example, an arbitrary pattern can be printed on a polyvinyl alcohol film, the pattern printed on this film can be transferred and floated on the surface of water, and the object to be coated can be immersed. However, a method has been proposed in which the image is transferred again (Japanese Unexamined Patent Publication No. 55-61492). This method is a water surface transfer method which can also be called a film transfer method, and techniques belonging to this category are described in, for example, Japanese Patent Application Laid-open Nos. 51-21911, 55-41283, and 11084-1984. There is a disclosure.

However, the above method has one more step than the normal water surface transfer method, making the water surface transfer method complicated and increasing the cost. In the first place, the advantage of the water surface transfer method was its low cost, so there was no point in making the painting process unnecessarily complicated.

[Object of the invention] This invention was made in view of the above circumstances.
The purpose is to expand the degree of freedom in creating patterns using the water surface transfer method.

[Disclosure of the Invention] The present invention is characterized in that a water surface transfer method apparatus is provided with an air nozzle for spraying an air stream onto a coating film formed on a water surface. This will be explained below with reference to FIG. 2 shown as an example.

FIG. 2 is a schematic diagram showing the device according to the present invention, (a)
is a plan view, and (b) is a side view. The numbers for each part are roughly the same as in FIG. 1, except that 8 is an air nozzle, and 9 is a striped part where the coating film is scraped off by the air jet from the air nozzle 8. A step-by-step explanation will be given below. First, a water tank 1 is filled with water, and a water surface 7 is divided by a weir 3 into a paint reservoir part 2 and a pattern design part 2a. Although not shown, a predetermined amount of paint that floats on water is supplied to the paint reservoir 2 using a metering pump or the like (it is preferable to have a film thickness of about 400μ to 200μ, but there is no particular limitation). do. Layer 3 is then opened to allow the paint to diffuse. Architectural board 6
A plurality of air nozzles 8 (set as appropriate depending on the width of the pattern you want to design) are installed above the water surface 7 in front of the position where the material is introduced into the water surface 7 (substrate transfer section), and the air is diffused into the coating. The paint can be branched by spraying onto the film. In this case, not only can all installed air nozzles 8 be opened and closed at the same time, but also the opening and closing states of individual air nozzles 8 can be adjusted separately, that is, the air nozzles 8 that are open and the air nozzles 8 that are By appropriately designing the state in which the air nozzle 8 exists, it becomes possible to branch and integrate the striped pattern, and it is possible to express the diversity of the pattern. Although the wind speed of the air ejected from the air nozzle 8 is not intended to be limited, it is 0.2 to 0.7 m.
/- second is preferable.

FIG. 3 is a schematic diagram showing an example of expressing a change in pattern by adjusting the air jet from the air nozzle 8 in chronological order. As shown, here the air nozzle a S
b −, C% d Se % f are arranged in a row. From this, air is injected only from the nozzles listed below in the chronological order of ■, ■, ■, ■, ■. In this way, it is possible to express a pattern in which the striped paint film repeats branching and integration at the positions shown in the figure.

FIG. 4 is a schematic diagram showing another design example of the device, and the feature of this embodiment is that the air nozzle 10 is arranged at an angle toward the flow direction of the pattern (preferably about 30 degrees or less from the horizontal position, but there is a limit). (not something that does). Further, in this case, by providing the air nozzle close to the weir 3, the paint can be forced to be drawn out from the paint reservoir 2, and in this case, the taste of the pattern also changes.

In the case of the embodiment shown in Fig. 4, the amount of paint stored in the paint reservoir 2 is preferably about 200 μm (if the amount of paint is large, the paint will be concentrated by air, resulting in a thick paint film during transfer.
flow and make it difficult to transfer). Preferably, the wind speed is such that the movement speed of the pattern on the water surface is slower than the transfer speed (substrate loading speed). If it is the other way around, it will cause the transferred pattern to run out. In addition, the water surface that is exposed to air takes on an elliptical shape, depending on the nozzle diameter, and because the air pressure is greater in the center than in the surrounding area, the paint film is thinnest and gradually thickens toward the periphery. On the paint expansion side, since the film thickness is the thinnest at the center, most of the film spreads there, gradually becoming less and less toward the periphery, so that the entire film tends to have the same thickness. Therefore, by transferring the pattern designed in this way, the blurred pattern at the pattern interface (with a gradient in paint film thickness) can be improved.
8.

[Effects of the Invention] The present invention is characterized in that, in a water surface transfer device, an air nozzle is arranged in the pattern design part, and the pattern is changed by spraying airflow onto the coating film that is being diffused and developed on the water surface. As a result, complicated branching and
Since it is possible to express a striped pattern that combines integration, we have been able to provide a device that can add diversity to water surface transfer patterns. In addition, as an additional effect, since it is not necessary to use the conventionally used comb-shaped baffle plate, the troublesome work of cleaning the baffle plate can be omitted.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram illustrating a conventional water surface transfer device, FIG. 2 is a schematic diagram illustrating a water surface transfer device according to the present invention, FIG. 3 is a schematic diagram illustrating the state of implementation of the present invention, and FIG. 4 FIG. 2 is a schematic diagram showing another embodiment. 1 is the water tank 2 is the paint reservoir 3 is the weir 4 is the comb-shaped baffle plate 6 is the architectural board 7 is the water surface 8 is the air nozzle 10 is the air nozzle Patent applicant Toshimaru Takemoto, patent attorney for Matsushita Electric Works Co., Ltd. 2 idiots) Figure 1: c) Figure 2: 0)

Claims (2)

[Claims] (1) A water surface transfer device, characterized in that an air nozzle is disposed in the pattern design section to spray airflow onto a coating film spread out on the water surface to change the pattern. (2) The water surface transfer device according to claim 1, wherein the air nozzle faces the flow direction of the pattern and is inclined with respect to a horizontal plane.