Sealing apparatus for multilayer film

a multi-layer film and sealing technology, applied in the field of heat sealing apparatus, can solve the problems of multi-layer film requiring specialized tools to properly cut, food packaged in conventional trays and sealings may discolor, food products visually unappealing,

Inactive Publication Date: 2012-08-09
ROSS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The present disclosure relates to a heat sealing apparatus including an insulator sealing head assembly, and a process for manufacturing an insulator sealing head assembly. The insulator seal head assembly is specifically designed to accommodate specialty films, such as multilayer films, used to seal food containers. The insulators in the insulator sealing head assembly may be constructed from various materials including polytetrafluoroethylene (PTFE), polyphenylsulfone (PPSU) such as Radel® and Radel R®, G10 fiberglass laminate, silicone sheets or foam, Synform™, ceramics, polyether ether ketone (PEEK), Ultem®, Fluorosint®, polysulfone (PSU), polyetherimide (PEI), and other insulator-type materials, that are food-approved, readily-machined, smooth, and stable at high temperatures.
[0023]Additional benefits of the disclosed insulator sealing head assembly include a better temperature controlled environment and improved sealed package appearance. The disclosed invention is better equipped to handle specialty films such as multilayer films, and can create a smooth domed surface film which can be properly supported while being applied to the tray, and properly supported as the package is evacuated of air and modified atmospheric gas inserted, thereby creating a wrinkle-free and blemish-free seal. Also, the disclosure of a knife blade with heated serrated edges can improve the cutting capabilities and reduce fraying or stretching of the film, thereby increasing the sealed package appearance.

Problems solved by technology

Food packaged in conventional trays and seals may discolor when the food comes into contact with the sealing material.
If the atmosphere in the food packaging is not properly maintained, it can discolor the food product or create a cloudy appearance, making the food product visually unappealing.
However, multilayer film requires specialized tools to properly cut and shape the sealing material since the film consists of at least two layers which must be shrink-wrapped to seal the food tray.
If all of the layers of the film are not heated properly, the sealed package may appear to have film creases, blemishes, streaks or other visible flaws, making the food product visually unappealing.

Method used

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  • Sealing apparatus for multilayer film
  • Sealing apparatus for multilayer film
  • Sealing apparatus for multilayer film

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Embodiment Construction

[0039]The disclosure and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiment and example that is described and / or illustrated in the accompanying drawings and detailed in the following description. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale, and features of one embodiment may be employed with other embodiments as the skilled artisan would recognize, even if not explicitly stated herein. Descriptions of well-known components and processing techniques may be omitted so as to not unnecessarily obscure the embodiments of the disclosure. The example used herein is intended merely to facilitate an understanding of ways in which the disclosure may be practiced and to further enable those of skill in the art to practice the embodiments of the disclosure. Accordingly, the example and embodiment herein should not be construed as limiting the scope of the disclosure...

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Abstract

The present disclosure relates to a heat sealing apparatus including an insulator sealing head assembly and a container cavity, and a process for manufacturing an insulator sealing head assembly. The insulator seal head assembly is specifically designed to accommodate specialty films, such as multilayer film, used to seal food containers as described herein.

Description

CROSS REFERENCE TO PRIOR APPLICATIONS[0001]This application claims priority and the benefit thereof from a U.S. Provisional Application No. 61 / 409,439 filed on Nov. 2, 2010 and titled SEALING FILM AND METHOD FOR MAKING THE FILM, the entire contents of which are herein incorporated by reference in their entirety.FIELD OF THE DISCLOSURE[0002]The present disclosure relates to a heat sealing apparatus including an insulator sealing head assembly, and a method for manufacturing an insulator sealing head assembly.BACKGROUND OF THE DISCLOSURE[0003]The packaging industry, specifically, the food packaging industry has been improving upon and creating shallower food trays in order to best display the food product when packaged and create a vision of a fuller package from the consumer's perspective. The use of a shallower food tray also reduces the amount of packaging materials used.[0004]The food packaging industry has also been improving upon and creating new innovative lidding / sealing mater...

Claims

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Application Information

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IPC IPC(8): B65B51/10B65B7/00
CPCB29C65/18B29C66/91431B29C66/112B29C66/131B29C66/242B29C66/53461B29C66/723B29C66/8122B29C66/81261B29C66/81423B29C66/81427B29C66/8167B29C66/81821B29C66/8242B29C66/8322B29C66/919B65B31/028B65B51/14B29C65/74B29C66/91421B29C66/8181B29C66/81422B29C65/305B26F2001/4481B26F1/40B26D7/10B29K2881/00B29K2827/18B29K2883/00B29K2871/00B29K2909/02B29K2881/06B29K2879/085B29C66/24244B29C66/81241B32B5/18B32B5/24B32B27/28B32B2262/101
InventorSPILLNER, WAYNEFISCHER, ROBERTDANIEK, V. MICHAELKENNEDY, JAMES ROSSMOLKA, MICHAEL
OwnerROSS IND