Easy open water soluble blister package

Abstract

A blister package consists of a backing sheet (16) of cardboard, paper or plastic adhered to a blister (17) in which at least one or both of the backing sheet and the blister is made from a transparent water soluble thermoformable polymer composition. A tooth brush, cleaning utensil or garden utensil enclosed in the water soluble packaging material can be opened by placing it under running water. The packaging material is a starch or modified starch based polymer by direct contact with water, and that biodegrades in waste water. The preferred starch is a high amylose maize starch. The starch can also be derived from wheat, potato, rice, oats, arrowroot and pea sources. The backing sheet is adhered to water and applying the backing sheet with the use of a press plate (24).

Description

[0001] This invention relates to an easy open package particularly blister type packages for products which can withstand being wet. BACKGROUND TO THE INVENTION [0002] Most manufactured products are presented for sale in packages. The packaging material usually of paper paperboard and / or plastics needs to be printable and also to protect the articles. For personal hygiene products the articles usually are sealed to ensure the hygiene standards for the product. Consumers usually like to be able to see what they are purchasing so that it is common for at least part of the packaging material to be transparent. Blister packs where a transparent thermoformed polymer layer is bonded to a paper or card board backing is a common packaging method for products of this type. [0003] Tooth brushes are commonly enclosed in a blister pack of transparent thermoformed plastic material enclosing the brush with a paper or paperboard panel at the back. The packaging of tooth brushes has been the subjec...

AI Technical Summary

Benefits of technology

[0008] It is an object of this invention to provide an easily opened packag

Problems solved by technology

None of these patents address the problem of easy opening the packages to access the product.

Blister packages can be difficult to open as the materials used do not tear easily and it is often necessary to use scissors to open the package.

The package then has to be disposed of and packaging of this sort adds to the environmental

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