JPH04215946A - Container for liquid - Google Patents

Abstract

PURPOSE: To enable a visual inspection to be carried out to check if leakage of liquid through a partition wall occurs by a method wherein there is provided a transparent or translucent hard outer box, its inner portion is divided into two inner chambers by a soft partition wall, liquid is stored in one of the inner chambers and either color or color tone of the partition wall is visually contrasted with liquid. CONSTITUTION: A container has a hard outer box 2 comprised of two container forming sections 4 and 6 partitioned by a soft partition wall 8. Either the hard outer box 2 or at least the container forming section 4 is formed by a translucent plastic material and then either color or color tone of the material of the partition wall 8 is contrasted with liquid 14. For example, if the liquid 14 has a relative bright color tone, material of the partition wall 8 has a relative dark color tone. With such an arrangement as above, in the case that liquid leakage occurs at the partition wall 8, it is possible to acknowledge it through a translucent container forming section 4 that there is present a liquid droplet 18 of bright color against a relative dark background, so that it becomes apparent that the liquid leakes out.

Description

[Detailed description of the invention]

0001

FIELD OF THE INVENTION This invention relates to containers for liquids, particularly containers for herbicides.

0002

[Prior Art] Recently, a liquid container has been developed as a packaging form for herbicides, in which the inside of a hard outer box is divided into two parts by a soft partition such as a foldable bag or a flexible membrane. . The liquid is contained in one interior chamber of this container,
There, it is cut off from the atmosphere. The outer box is provided with air holes or other equipment so that when dispensing the liquid, air enters the other part of the outer box that is separated from the liquid by a partition wall. When liquid flows out of the container, the soft septum moves and the volume of the liquid-containing portion of the container decreases.

0003

[Problem to be Solved by the Invention] In such a container, if the soft partition wall is punctured or torn, liquid will leak from one inner chamber to the other, and from there, it will leak out of the box through the air holes. There is a risk of leakage. This is especially harmful if the contents are herbicides or other hazardous substances. Even if the outer box is transparent or translucent, it is not easy, and perhaps impossible, to visually detect whether liquid is leaking from the bulkhead.

0004

[Means for Solving the Problems] In order to solve the problems, the present invention includes a transparent or semi-transparent hard outer box, the inside of which is divided into two inner chambers by a soft partition, A container for a liquid is provided which contains a liquid in one of its interior chambers and is characterized in that the color or tone of the septum visually contrasts with the liquid.

[0005] The flexible septum is preferably translucent and darker in color than the liquid so that it contrasts with the normally lighter color of the spilled liquid and is easily identified through the outer case.

[0006] In a preferred embodiment of the container according to the present invention, the rigid outer box is provided with an inlet/outlet for liquid. Preferably, the liquid-free interior chamber is equipped with ventilation means for the inflow and outflow of air.

[0007] In a preferred embodiment, the container contains the herbicide, and the container is in the form of, for example, a disposable cartridge, for use with a to-go container for the herbicide.

[0008] The flexible septum is preferably made of plastic material. The plastic material may be mixed with dyes to impart color or tone to the septum.

[0009] The container is preferably equipped with means for admitting air into the container when liquid is discharged from the interior chamber. This means is preferably carried out by punching one or more holes in the outer box.

0010

In the container according to the present invention, it is possible to detect whether the liquid contained in the container has leaked through the partition wall simply by looking inside the outer box. When liquid is leaking, it is clearly visible as it contrasts with the septum.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, the container has a hard outer box 2 consisting of two container forming parts 4 and 6 separated by a soft partition wall 8. One container-forming part 6 is provided with an opening 10 through which the contents of the container flow out and into.

The other container forming part 4 is provided with a protruding stopper 12, which is hollow inside and whose protruding end is closed.

Normally the septum 8 provides a leakage barrier and divides the interior of the container into two interior chambers 14, 16. When the container is filled with liquid, the inner chamber 14 occupies substantially the entire interior of the outer box 2, and the partition wall 8 is adhered to the inside of the container forming part 4. When taking out the contents of the container, use the stopper 12.
is opened by breaking it to let air into the inner chamber 16. Thereby, the partition wall 8 separates from the container forming part 4 and the liquid flows out from the inner chamber 14. In normal use, the open stopper 1
There is no risk of liquid flowing out through the hole formed by 2.

However, if a leak occurs in the septum 8, such as through the hole 18 shown in FIGS.
and flows into the inner chamber 16, and when the stopper 12 is opened, the inner chamber 1
The liquid accumulated in 6 may leak outside. This can be extremely harmful when the contents of the container are potentially hazardous substances such as herbicides.

In order to avoid the risk of such accidental leakage, the hard outer box 2 or at least the container forming part 4 is made of a translucent plastic material, and the color or tone of the material of the partition wall 8 is different from that of the liquid 14. Assume that they are in contrast. For example, if the liquid 14 has a relatively bright color, the partition wall 8
The material should be relatively dark in color. As a result, if leakage occurs at the partition wall 8, the light-colored droplets 10 can be seen on a relatively dark background through the translucent container forming part 4, so that it becomes clear that the leakage has occurred.

If the herbicide is to be applied undiluted directly from the container, care must be taken to formulate the herbicide to ensure that it has the desired physical properties for proper application. The herbicide may also be colored, for example with white dye, to make it stand out among the soil or plants and to make it easier to identify where the herbicide has been dropped. For this reason,
Further coloring or staining of herbicides is usually undesirable. A preferred method, then, would be to select the color or tone of the partition wall 8 to contrast with the color or tone of the predetermined herbicide.

[0017]

Effects of the Invention: By visually contrasting the material of the liquid and the partition wall, if the liquid leaks from the partition wall, the leakage can be detected before the stopper is opened, that is, before the leaked liquid flows out of the container. It becomes possible to detect. This results in
Containers with leaking liquid from their bulkheads should be discontinued in advance to prevent contamination with potentially hazardous substances.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an example of a herbicide container.

FIG. 2 is a cross-sectional view of the container shown in FIG. 1.

[Explanation of symbols]

2 Outer box 4, 6 Container forming part 8 Partition wall 10 Opening 12 Stopper 14, 16 Inner room 18 hole 20 Droplet

Claims (5)

[Claims] Claim 1: A transparent or translucent hard outer box, the interior of which is divided into two inner chambers by a soft partition, one of which contains a liquid, and the color of the partition or A container for a liquid, characterized in that the color tone visually contrasts with the liquid. 2. The liquid container according to claim 1, wherein the liquid has a lighter color tone than the soft partition wall. 3. The liquid container according to claim 2, wherein the partition wall is black. 4. The liquid container according to claim 1, wherein the hard outer box is provided with a ventilation hole that communicates with an inner chamber that does not contain liquid. 5. A liquid container according to claim 4, wherein the vent hole is closed by a removable closure.