DE7012081U - PACKAGING FOR CONTAINERS CONTAINING ACID OR ALKALINE LIQUIDS. - Google Patents

Description

"Packaging for acidic or alkaline liquids

containing be? older "

The innovation concerns a packaging for acidic or alkaline Containers containing liquids, Me ans absorbent Consists of material that is provided with a print.

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When selling unfilled motor vehicles — starter battery— In many cases, the filling acid required for commissioning is offered at the same time as the battery For this purpose, a sufficient amount of filling acid is filled into a suitable container and packed with the battery. Since the containers for the filling acid are thrown away after the filling acid has been removed, for reasons of cost plastic film is preferably used to produce the container for the filling acid. The thin-walled container for the

Patent attorneys Dipl.-Ing. Martin Licht, Dipl.-Wirtsdi.-lng. Axel Hansmann, Dipl.-Phys. Sebastian Herrmann

8 MÖNCHEN 2. THERESIENSTIASSE 33 · Telephone: 281202 · Telegram-Adran ·: Upatti / MBndMn Bayer. Vermiubank MOndwn, branch. Oitar-voo-Miller-Ring, KIo-Nr. 8B249S Postsdiedc account: MOndiw No. 163397

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Filling acids are used to protect against injuries during transport and to achieve stackability in an enveloping packaging made of absorbent material, in particular corrugated cardboard. Information about the contents and, if necessary, the instructions for use are usually printed on the packaging. The warnings and precautionary measures prescribed for corrosive substances must also be affixed to the packaging. If, due to improper handling, a filling acid container becomes undioht, there is a risk that s People and material are harmed by the escaping acid.

be approved. The earlier you can determine that the inner container is leaking, the less damage.

The innovation is now based on the task of a packaging for acids or alkalis containing containers that consists of absorbent material, which is provided with a print, designed in such a way that a leak of the container is displayed immediately and clearly.

This object is achieved in that, according to the invention, the print or parts thereof contain a pH indicator.

If with a newly designed packaging the container leaks and, for example, acid leaks out of the container, this is immediately removed from the absorbent Material is absorbed and comes into contact with the imprint on the absorbent material, in which a color change is then effected, so that the leakage of a container can be recognized immediately on the packaging is.

Appropriately, a Printing ink used in which the coloring component

a pH indicator is so that the indicator is the most coloring Component of the imprint.

If the container contains acid, choose to display the leaky container as clearly as possible The label on the packaging has a pH indicator that changes color clearly in the pH range from 2.0 to 4.5 indicates. A preferred indicator for acids is, for example, dimethylaminoazobenzene, which is the least wetting with acid shows a color change from yellow to red and thus a leaky acid container immediately and clearly indicates.

In the case of packaging for containers containing alkalis, a pH indicator and its color are used for printing changes in the pH range from 10 to 12.

For packaging for filling acid for containers containing batteries, it is advantageous to have a universal indicator printed on it that is, an indicator that responds to both alkaline and acidic pH values. A Parts of the packaging carrying the imprint, which are preferably easily detachable from the packaging, e.g. by means of a Perforation can then be used to determine if any excess acid is neutralized the pH of the acid neutralized by adding suitable alkaline chemicals. If necessary, the entire packaging or at least a region thereof can be colored with a pH indicator.

An embodiment of the innovation will now be explained in more detail with reference to a drawing that shows a packaging for a Shows container that contains the amount of sulfuric acid required to start up a lead-acid battery.

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The packaging shown in the figure consists of a cardboard box I ₁ made of absorbent material, for example corrugated cardboard, which encloses a container containing a filling acid for starting up an accumulator. At least the side walls 2, 3 of the cardboard box 1 are provided with an imprint k which, for example, indicates the content and the use of the content. The imprint contains a pH indicator as a coloring component, which changes color immediately in the event of a leak in the container in the box, as the acid leaking out of the container immediately comes into contact with the imprint through the absorbent corrugated cardboard and changes the color of the imprint. If necessary, the bottom wall of the cardboard box can be colored with a pH indicator.

The packaging according to the innovation is also advantageously suitable for receiving a predetermined amount of normal acid plastic ampoules containing normal eye The amount of alkali used in the preparation of dilute standard solutions for chemical analysis is to be avoided of incorrect chemical analysis results of particular importance when preparing the normal solutions always the weighed normal acid or normal— amount of lye is available. The packaging according to the innovation now enables detection and separation of ampoules that have leaked during transport and storage and therefore their contents are not very good for the preparation of normal solutions of a given concentration suitable is.

Claims (6)

SCHUTZÄNSFKUÜMJS: 1. Packaging for acids or alkalis containing containers, which consists of absorbent material with is provided with an imprint, characterized in that the imprint or parts thereof contain a pH indicator. 2. Packaging according to claim 1, characterized in that the pH indicator is the coloring component of the print represents. 3. Packaging according to claim 1 or 2, characterized in that the imprint is a universal indicator which changes color at both acidic and alkaline pH values. k. Packaging according to claim 1 or 2, characterized in that the print contains a pH indicator, the color change range of which comprises either the pH range from 2 to k or from 10 to 12. 5. Packaging according to one of the preceding claims, characterized in that the packaging has easily separable parts on which a pH indicator is provided is. 6. Packaging according to one of the preceding claims, characterized in that at least a portion of the Packaging is colored with a pH indicator.