With composite film for atmosphere fresh-keeping and microwave heating automatic pressure regulating packaging device

Patent Type: Invention Patent Inventor: Lin Qixiang Applicant: Lin Qixiang Principal Applicant Address: No. 71, Lane 53, Guanghua Road, Shanhua Town, Tainan County, Taiwan Application No. 2
Application Date: 2005.01.18
Approval notice number: 1807086
Approval notice date: 2006.07.26
Main classification number: B32B3/12 (2006.01)I
Classification number: B32B3/12(2006.01)I
Category classification number:
Manual CD-ROM: D0630-1
Abstract : The invention relates to a composite film and a manufacturing method for an automatic pressure-adjustment and microwave heating automatic pressure regulating packaging device. The composite film is composed of a group of substrate film layers having a plurality of microscopic gap structure regions, and an adhesive layer. Combine to a sealant layer to form another set of microscopic gap structure regions on the overall composite film to provide the required oxygen permeability and carbon dioxide permeability, especially for all kinds of fresh fruits and vegetables. The cover film or the bag compound film of the packaging box can effectively provide a controllable dynamic balance of oxygen and carbon dioxide concentration to achieve the effect of prolonging the freshness, and at the same time, when the packaged fresh fruits and vegetables are consumed, the frozen fresh fruit and vegetable packaging can be directly included. The device is directly heated and cooked in a microwave oven. The composite film can regulate the high temperature and high vapor pressure through the microscopic gap structure region of the substrate film layer, so that the packaging device can be prevented from being exploded in the heating process. In practical applications, fresh fruits and vegetables can be used. At the same time, the freshness preservation function can be prolonged by the gas-adjusting and fresh-keeping function, and fresh raw vegetables can be packaged directly during heating and cooking. Removed from the storage environment, conditioning and heating directly placed in a microwave oven food, while not great loss of high-temperature steam and dry hard food danger.
Sovereignty items: 1. A composite film and manufacturing method for an atmosphere-modulated and microwave-heated automatic pressure-regulating packaging device, comprising: a first group of microscopic layers of a substrate film layer for processing a predetermined range of size by using a helium pressing process. The structure region is gapped, and the substrate film layer is coated on the packaging device by means of heat and pressure, and the sealing film layer that must be larger than its range is determined according to the width of the plurality of microscopic gap structure regions of the substrate film layer. The adhesive layer is evenly coated along one side of the sealing film layer, and the adhesive layer of the sealing film layer is correspondingly adhered and disposed on the surface of the micro gap structure region of the substrate film layer, and after the lamination is completed The composite film is then repressed with a die press process to form a second group having a plurality of micro-gap structure regions; accordingly, a second group having a plurality of micro-gap structure regions is effectively utilized to provide a specific design air permeability, thereby being packaged with The specific respiration rate of fruits and vegetables achieves a controlled dynamic balance between oxygen and carbon dioxide concentration for prolonged preservation, while the packaging device with a substrate film layer heats food when microwave heating is performed. The high-temperature and high-pressure steam is generated through the plurality of micro-gap structure regions provided by the substrate film layer, gradually softening the adhesion layer and weakening the adhesive strength of the predetermined adhesion interface, so that the sealing film layer coated with the adhesion layer gradually The substrate film layer is peeled off, so that the high-temperature and high-pressure steam in the packaging device is regulated outwards by the micro gap structure region that is not covered by the sealing film layer, so as to automatically adjust the high temperature and high vapor pressure, and prevent the packaging device from heating. The explosion occurs during the process without causing a large loss of high-temperature steam and drying of the food.
Agency: Beijing Jikai Intellectual Property Agency Co., Ltd. Agent: Wang Yanqiu Database Name: Invention Patent Database

Reprinted from: Wanfang Data

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