JPS6351977A - Method for applying sol-like synthetic resin material to outer surface of container - Google Patents

Abstract

PURPOSE:To make a film thickness constant and to automate coating work, by preliminarily providing a sol like synthetic resin compound having a predetermined shape and thickness on a surface and applying the same to the outer surface of a container by the tumbling of the container. CONSTITUTION:A compound material 2 composed of a synthetic resin such as a vinyl chloride resin in a sol state applied to a surface such as a flat or circumferential surface in the area corresponding to the range to be coated of the outer surface of a container 3 such as a bottle or a can in such a state that the material 2 is slightly widened in the longitudinal direction thereof if necessary and the thickness of at least one part of the widened part is reduced. The outer surface of the container 3 is contacted with the compound material 2 and the container 3 and the surface of the compound material 2 are relatively replaced so that the contact surfaces of both of them move. For example, by rotating the container 3 in this case, the compound material 2 can be applied to the outer surface of the container 3 over a desired range.

Description

[Detailed Description of the Invention] The present invention uses synthetic resin in sol form to form a synthetic resin film on the outer surface of containers such as bottles and cans to prevent breakage and to keep cold and warm. The present invention relates to a method for applying a material.

Conventionally, in order to apply a sol-like synthetic resin material to the outer surface of containers such as bottles and cans, it has been applied manually using a brush, or as shown in Figure 8. A part of the rotatable roll 11 is immersed in the synthetic resin material 10 of the shape, and this roll 11 is
While sealing the roll 12 which is also rotatable, the container 1
3 is rotatably supported and brought into contact with the roll 12, the rolls 11 and 12 are rotated to guide the sol-like synthetic resin lO onto their peripheral surfaces, and the container 13 is rotated. Then, the sol-like synthetic resin material 10 guided to the circumferential surface of the roll 12 was applied to the outer circumferential surface of the container 13.

Problem B tries to solve 'A Question The above-mentioned conventional method has the disadvantage that when painting by hand with a brush, work efficiency is poor and skill is required to finish the coated surface evenly and uniformly. On the other hand,
When using a roll, it is difficult to set the coating thickness to the desired thickness, and it is not possible to increase the coating thickness, and it is also difficult to make the coating start and finish areas on the outer surface of the container completely different. This is difficult and has the drawback that the image areas overlap, resulting in thicker areas.

The present invention relates to a method for applying a sol-like synthetic resin material to the outer surface of containers such as bottles and containers, which eliminates these drawbacks.

11. To unravel 1.

A synthetic resin compound material such as vinyl chloride in a sol state is applied onto a plane, circumferential surface, etc. in an area corresponding to the area to be applied on the outer surface of a container such as a bottle or can, and in some cases in the longitudinal direction. (Then, the thickness of at least one part of this widened part is made thinner, and the other part is provided so as to have the thickness to be applied, and the outer surface of the container is brought into contact with the upper surface of this compound material, so that the contact surface moves;
The compound material O:1 is applied to a desired range of the outer surface of the container by relatively displacing the container j and the surface on which the compound material is provided, for example, rotating the container j:1. .

Jull.

A sol-like synthetic resin compound material is provided on the area and 17 in the area to be applied to the outer surface of the container, and this is applied to the outer surface of the container, making it possible to automate the application work and to control the coating thickness. It is easy to set the thickness to a desired thickness, and it is also possible to make the coating start and finish portions on the outer surface of the container evenly i1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to FIGS. 1 to 7 of the accompanying drawings.

First, a first embodiment of the present invention will be described based on FIGS. 1 to 5.

As shown in FIGS. 1 and 2, a sol-like vinyl chloride compound 2 is applied to the area to be coated on the outer surface of the container 3 on a plane made up of a flat plate 1 with a smooth surface. From the corresponding width, in the longitudinal direction (left and right direction in Figure 1)
The coating is made slightly wider, and the thickness of both end portions of the widened end portions is made thinner, and the other portions are provided so as to have the thickness to be coated. To provide it in this way, for example, in a frame (not shown) having a width corresponding to the area to be coated,
After uniformly pouring the sol-like vinyl chloride compound 2 to the desired thickness and removing the frame, both longitudinal ends may be stretched with a roll (not shown) or the like to make it thinner. The vinyl chloride compound 2 is formed by adding a plasticizer to vinyl chloride in the form of a sol, and further adding a blowing agent, a stabilizer, a coloring agent, a filler, etc. as necessary.

Next, as shown in FIG. 2, a bottomed cylindrical container 3 to be coated is placed on the flat plate 1 so that one end of the sol-like vinyl chloride compound 2 is parallel to its axis. place Then, as shown in FIG. 3, when the container 3 is rotated and moved over the sol-like vinyl chloride compound 2 toward the other end, the sol-like vinyl compound 2 is applied to the outer peripheral surface of the container 3. The vinyl chloride compound 2 is applied in a roll-up manner. At this time, both ends of the sol-like vinyl chloride compound 2 are formed thinly, so even if these parts overlap, the coating thickness does not become thicker and the thickness is uniform. It will be applied at the same time.

The sol-like vinyl chloride compound 2 (see Figure 5) applied to the outer surface of the container 3 as described above is heated to gel and form a film, and is also foamed at the same time as necessary. It is something that

FIG. 6 shows a second embodiment of the present invention. In this embodiment, a sheet 4 on which characters, figures, etc. are printed is laid on a flat plate L, and a sol-like m-vinyl resin is placed on this sheet 4. Compound 2 is provided.

Then, the sol-like vinyl chloride compound 2 can be applied to the outer surface of the container 3 in the same manner as in the first embodiment described above. In this example, as is clear from FIG. 6, only one end of the sol-like vinyl chloride compound 2 is thin (formed), but even if the thin part is only at one end,
It is possible to form a wall with a uniform thickness.

If such a sheet 4 is provided, the sheet 4 will be integrated when the sol-like vinyl chloride compound 2 is gelled, so that a printed portion can be extremely easily formed on the outer surface of the container 3.

FIG. 7 shows a third embodiment of the present invention, in which a sol-like vinyl chloride compound 2 is provided on a circumferential surface extending parallel to the axis formed by the circumferential surface of a roll 5. It is. Then, the container 3 is brought into contact with the roll 5 so that their axes are parallel to each other, and the roll 5 and the container 3 are rotated in mutually opposite directions.
A sol-like vinyl chloride compound 2 is applied to the outer surface of the container.

In this embodiment, the roll 5 is used, and since the sol-like vinyl chloride compound 2 is provided in advance in a predetermined range and thickness, the sol-like chloride compound 2 of desired amount jγ is applied to a desired position on the outer surface of the container 3. Vinyl compound 2 can be applied.

Note that the present invention is not limited to the above-mentioned embodiments (for example, the synthetic resin is not limited to vinyl chloride, etc.).
Many modifications are possible.

Intuition: As is clear from the above explanation, the present invention can bring about the following effects.

First, it is easy to set the range and thickness of the sol-like synthetic resin compound to be applied to the container, and the desired range and thickness can be uniformly applied.

Second, since the sol-like synthetic resin compound is applied on the surface in advance, the coating surface can be formed smoothly.

Thirdly, since another sheet can be laid in advance on the surface on which the sol-like synthetic resin compound is to be applied, this sheet can reinforce the film that will be formed after application. A printed portion can be easily provided on the outer surface of the container.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a state in which a sol-like synthetic resin compound according to the first embodiment of the present invention is provided on a flat surface, FIG. 2 is a side view, FIG. 3 is a side view showing the application operation, and FIG. The figure is a plan view of the container similarly showing the state after application, FIG. 5 is a side view of the container similarly showing the state after application, and FIG. FIG. 7 is a side view of the third embodiment in which the sol-like synthetic resin compound is provided on the circumferential surface, and FIG. 8 is a side view of the conventional example. 1... Flat plate 2... Sol vinyl chloride compound 3... Container 4... Sheet 5
...Roll Figure 1 Figure 7 Figure 4

Claims (5)

[Claims] (1) Place a synthetic resin compound in a sol state on the surface so that it has a width corresponding to the area to be coated on the outer surface of the container and a thickness to be coated, and apply the compound material to the top surface of the container. The compound material is applied to a desired range of the outer surface of the container by bringing the outer surface of the container into contact with each other and relatively displacing the container and the surface provided with the compound material so that the abutting surface moves. A method for applying a sol-like synthetic resin material to the outer surface of a container, characterized in that: (2) The method for applying a sol-like synthetic resin material to the outer surface of a container according to claim 1, wherein the synthetic resin is vinyl chloride. (3) A method for applying a sol-like synthetic resin material to an outer surface of a container according to claim 1, wherein the surface is a flat surface. (4) The method for applying a sol-like synthetic resin material to the outer surface of a container according to claim 1, wherein the surface is a circumferential surface extending parallel to the axis. (5) The compound material on the surface is set slightly wider than the area corresponding to the area to be applied on the outer surface of the container, and
A method for applying a sol-like synthetic resin material to an outer surface of a container according to claim 1, wherein the thickness of at least one end portion is reduced.