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Seal, method of dry lamination and die-cutting method

A sealing and heat-sealing technology, applied in the direction of sealing, closure, cover, etc., can solve problems such as limited pull angle

Active Publication Date: 2022-02-15
LOWS CAP SEAL SDN BHD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the top tab style seal has a limited pull angle and requires two fingers to pull it apart

Method used

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  • Seal, method of dry lamination and die-cutting method
  • Seal, method of dry lamination and die-cutting method
  • Seal, method of dry lamination and die-cutting method

Examples

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Embodiment Construction

[0034] Such as image 3 As shown, the present invention comprises a plastic top layer 1 made of one of PE, PP, PET and nylon, a PET layer 2, an aluminum foil 3, a heat seal layer 4 and an adhesive layer 5, 6, 7 with a loop handle combination to hold all the layers together to form a composite. The composite material will be fully cut along a circle to form the seal and the top layer 1 will be partially cut to form the handle 10 . The PET layer is used as a buffer layer to keep the aluminum foil 3100% intact to protect the contents of the container.

[0035] Such as Figure 4 As shown, after the induction heat sealing process, the seal will adhere to the mouth of the container 8 to protect the contents of the container, as described above. After removing the cover 9 we can see the seal with its peripheral ring handle 10 . The ring handle 10 does not stick to the underlying layer 2, so that it can be lifted with only one finger. Loop handles are made of thick, clear and rigi...

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PUM

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Abstract

Our invention is a seal for containers. It is an induction heat seal with a loop handle 10 to allow easy removal of the seal from the container, the seal consists of a transparent and rigid plastic layer, a PET layer, an aluminum foil layer and a heat sealable layer underneath the aluminum foil . The ring handle 10 allows lifting the seal with only one finger, so it can be easily removed. For dry lamination, gravure rolls are designed to apply glue only to designated areas, enabling more efficient transfer of force for seal removal. For die cutting, the die cutting die is designed to fully cut the outer circumference of the seal and partially cut the inner circle to create the ring handle.

Description

technical field [0001] The present invention relates to a seal for a container, in particular an induction heat seal having a loop handle to facilitate removal of the seal from a container. Background technique [0002] Various types of seals or closures currently exist which are designed to seal over the opening of a container. To open a container after it has been sealed, the seal must be broken or peeled off. Such seals or closures are used in various containers, for example bottles for food, beverages, pharmaceuticals and chemicals. Their main function is to provide a protective element for the product in the container by separating it from the external environment. In some cases, the seal can also indicate whether the contents have been tempered. For food, seals are often used to seal the contents to prevent contamination and maintain the freshness of the food. On the other hand, with chemical products, seals are used to prevent product leaks and spills. Induction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D41/04B65D51/20B65D53/04
CPCB65D41/04B65D41/0435B65D51/20B65D53/04
Inventor 刘纪坚李伟康王永威林振纶黄应稳黄韵琪
Owner LOWS CAP SEAL SDN BHD