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Plastic packaging with tamper evidence

a technology of plastic packaging and tamper evidence, which is applied in the field of plastic packaging including tamper evidence, can solve the problems of high tooling cost, easy detection of unauthorized access to products inside the container, and high cost of molds for these containers, and achieve the effect of saving manufacturing costs

Inactive Publication Date: 2018-03-22
SZP ADVANCED PACHAGING PROD LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent is about a type of plastic packaging that is made up of a separate lid and bottom portion that are joinable. The two parts are made through a process called thermoforming. When the two parts are put together, they form a strong connection that can't be opened without breaking. This makes it easy to tell if someone has tampered with the packaging. The separate thermoforming of the lid and bottom portion also saves money because the lid can be made much thinner than the bottom portion. Additionally, the two parts can be made of different materials and colors, as desired.

Problems solved by technology

However, injection molding for food packaging requires polypropylene as the raw material and has a very high tooling cost, so the molds for these containers are very expensive.
Many types of tamper evidence are known in packaging that make unauthorized access to products inside the container easily detectable.

Method used

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  • Plastic packaging with tamper evidence
  • Plastic packaging with tamper evidence
  • Plastic packaging with tamper evidence

Examples

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Embodiment Construction

[0029]The present invention relates to plastic packaging having tamper evidence. In particular, it relates to plastic packaging including a bottom portion which contains the goods or products, a complementary, separately and independently formed lid, and a tamper evident lock, portions of which are formed on the lid and complementary portions of which are formed on the bottom portion. The complementary portions of the tamper evidence lock are locked to one another after filling the container such that the packaging can only be opened by breaking the lock. When the lock is broken, it provides evidence of possible opening of the lid from the bottom portion. Thus, a frangible plastic lock, that provides tamper evidence, is formed of two portions complementary to one another, one integrally formed with the lid and one integrally formed with the bottom portion and arranged to lock to one another after the container is filled. Preferably, the edges of the lid fit securely into an undercut...

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Abstract

Plastic packaging including a bottom portion, a complementary lid formed separately and independently from the bottom portion, and a tamper evidence lock including a frangible portion, the tamper evidence lock having a first portion integrally formed with the lid and a complementary second portion integrally formed with the bottom portion, for locking the lid to the bottom portion when the first portion is locked to the second portion forming the tamper evidence lock, and a method of providing tamper evidence.

Description

FIELD OF THE INVENTION[0001]The present invention relates to plastic packaging, in general and, in particular, to plastic packaging including tamper evidence.BACKGROUND OF THE INVENTION[0002]Conventional plastic packaging includes a bottom portion, which is a container that holds the products, and a lid to close the container. Plastic containers can be formed by several different technologies. One known technology is thermoforming, typically vacuum forming. Conventional thermoformed packaging having tamper evidence includes a single clam shell-like unit including an integrally manufactured lid and bottom portion, hinged to one another by a flexible plastic hinge. This means that they must both be made of the same material, of the same thickness and the same color.[0003]A second technology for forming plastic packaging is injection molding. Plastic containers formed by injection molding are typically formed of two separate parts, a lid and a bottom portion, which may be formed of dif...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D55/02B65D43/16B65D50/00B65D43/22
CPCB65D55/024B65D43/22B65D50/00B65D43/16B65D43/0239B65D43/162B65D2543/00351B65D2543/00453
Inventor SHMELTZER, MICHAELASLAN, ADNAN
Owner SZP ADVANCED PACHAGING PROD LTD
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