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Plastic film and packaging using the plastic film

A technology of plastic film and assembly, applied in the direction of transportation and packaging, special packaging items, packaging, etc., can solve the problems of difficult pressure control bags, rupture or explosion, overflow of contents, etc.

Pending Publication Date: 2021-09-28
TECKSOM INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the pressure inside the bag is not easy to control and bursting of the bag may occur at random locations, undesirably spilling the contents
For example, prior art bags are therefore prone to rupture or explode in unexpected ways when placed in a microwave oven

Method used

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  • Plastic film and packaging using the plastic film
  • Plastic film and packaging using the plastic film
  • Plastic film and packaging using the plastic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0158] refer to figure 1 , shows a film as an example of the present invention. The film 1A comprises a main pocket sheet 2A and a release pocket sheet 3A. The main pocket sheet 2A may comprise multiple plies of plastic and the release pocket panel 3A may also comprise multiple plies, as will be described below.

[0159] Plastic films can be formed into plastic bags with features such as Figure 3A A containment area such as area 6A seen in , and food or ingredients can be placed in the plastic bag.

[0160] The bag may be formed from the film at one or more of its peripheries, preferably sealed, for example by heat sealing, and may also be formed on itself by folds, such as folds 8A of the main bag sheet 2A.

[0161] Disposed on the first face side 9A of the main pocket panel 1A is the release pocket panel 3A. The first face side 9A of the main pouch sheet is preferably formed from a heat-sealable plastic ply.

[0162] The main pouch sheet 1A is preferably provided in el...

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PUM

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Abstract

A multi ply plastic film to create a heat-sealed enclosure for food to be heated inside the enclosure save for a region of the heat-seal where a vent-opening can be established to allow gas and / or steam to escape the enclosure during heating of the food. The film has a primary panel to create the enclosure by heat sealing to itself or a separate panel or to a peripheral lip of a container. There is also provided a release panel applied to said primary panel to be located intermediate of and to prevent the primary panel being heat-sealed to itself or peripheral lip at the peripheral heat-sealed region for the vent-opening to thereat be established.

Description

technical field [0001] The present invention relates to plastic films and related packages formed from or comprising the films. Background technique [0002] Plastic bags for preserving food are well known. Plastic bags are commonly used to contain, transport and store products such as food. Plastic bags are versatile, inexpensive, and widely used in a variety of applications, especially for containing food. [0003] With busy lifestyles, there is an increasing need to conveniently prepare food that needs to be heated or cooked. Microwave bags, such as corn-filled bags for making popcorn, are well known. Such bags may burst due to the increase in air pressure inside the bag when the contents are heated. Such bursts may occur at areas of the bag where there is weakness, such as perforations or seals between the bag panels that are thinner than other parts. [0004] However, the pressure inside the bag is not easy to control and bursting of the bag may occur at random loc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D75/12B65D81/34
CPCB65D81/3446B65D77/225B65D33/01B65D81/3266B65D33/2508B65D2205/02B65D81/3461B65D75/20B65D75/06B65D75/30B65D81/3453B65D2205/00B65D65/40C09J7/401C09J7/30B65D65/42B65D75/5805B65D77/2024C09J2423/005C09J2425/00C09J2431/005C09J2433/00
Inventor 邓联盛
Owner TECKSOM INT