TWI260270B - Method for manufacturing a self-venting composite film for heating food package - Google Patents

Abstract

A method for manufacturing a self-venting composite film for food package is disclosed. The composite film comprises a base layer material with a plurality of micro gaps, which adheres to another sealing layer through an adhesive layer. It can be applied to an airtight package in either bag pack or in container pack. Foodstuff can be closely packed in a refrigerated or frozen status and be heated up directly with a microwave oven. During microwaving, this composite film regulates the heated and pressurized steam without the bursting the closed pack film. This composite film is suitable for airtight food package with longer shelf life. Packed frozen food can be cooked directly from freezer to microwave oven without prior defrosting or pre-opening the package to prevent bursting during cooking. Moisture preservation is another feature with this film, which prevents the packed foodstuff from drying and losing the flavor.

Description

1260270 V. OBJECT OF THE INVENTION α) [Technical Field] The present invention relates to a method for automatically regulating and manufacturing foods by heating, and particularly for use in a composite film for various foods to be frozen and chilled, and sealed The human body, the body or the bag body can partially rupture the generated high-temperature circulating steam during the process, and the box or bag body of the microwave-heated packaged food is broken, and the ancient insurance and the avoidance of the loss of the food and the maintenance of the delicious food are ensured. Automatic pressure-regulating package = 气 不 不 不 不 Η Η Η Η Η Η Η Η Η Η Η Η Η Η ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;仃...艮 使用 使用 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 此 亨: In general households; V, he uses a mechanical furnace in a total place, and the ratio of cooking and heating food is also higher: 〆 microwave electromagnetic wave (Microwave) heating food principle, is to use the ingredients of the same material Polar molecule itself has a dipole In the nature of the moment, in the vector field of the microwave electromagnetic wave, in order to be aligned with the magnetic field, intense vibration or rotary motion occurs. The material relies on its own damping function to convert the vibration energy of the dipole moment into heat by heat dissipation, so that the internal energy energy in the overall system is accumulated and warmed, causing the temperature of the system containing the material to rise. Generally, The higher the dipole moment strength or the higher the dielectric constant of the material composition, the higher the ratio of the converted electromagnetic energy to the thermal energy, which means that the material heating effect is better and the heating speed is faster. The relative dielectric constant value of pure water is close to 80 at room temperature, and the dielectric constant value of polyethylene is 2. 5 at room temperature, so the water-containing food is coated in the packaging material of polyethylene at the same time. Heated under microwave electromagnetic field, theoretically most

1260270 V. INSTRUCTIONS (2) The microwave electromagnetic energy of the microwave energy is converted into heat energy. In other words, the heating system is heated by the heating system. The heating material is mainly based on food, but the material is low in heat conversion. Moreover, the microwave has a penetrating temple of general electromagnetic waves, can penetrate to any corner of the substance and uniformly heat the object, and dissipates the damping and damping (Damp i ng) into a thermal energy principle to make the system inside / The higher the efficiency of sub-damping heat conversion, the better the temperature increase effect. The heating and heating effect of the articles is also better. In the industrial and consumer markets, microwave equipment is often used to heat, dry, cook, bake and sterilize the articles, and the heating microwave frequency is 91 5 megahertz ( MHz) and 245 0 megahertz (MHz) electromagnetic waves. In addition, the relative dielectric constant values of food materials are related to the temperature and microwave frequency of microwave heating. The rapid loss of moisture and drying is a common problem faced by foods using microwaves for heating and cooking. This is due to the high dielectric constant and the south volatile component (such as water) in the food, which has a high dielectric constant. The material composition can convert the microwave electromagnetic wave energy into heat energy under the microwave field, and the temperature rise causes the material component with high volatilization and high vapor pressure characteristics to be easily heated and quickly volatilized, so that the food becomes dry and hard and loses delicious taste. In the microwave heating application market, the most commonly used microwave oven packaging materials on the market are wrap fi lm, microwave oven special bags and trays, etc. The raw materials of the packaging materials used include polyethylene (PE), poly Propylene (PP), polyamide, nylon, polycarbonate (PC), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polymethylpentene (PMP), ethyl acetate Ethylene-vinyl acetate (EVA), polyurethane (PU) or Surly nTM (Dupont ionomer)

1260270 V. Description of invention (3) Trade name of ionic polymer compound), polyethylene terephtha ate (PET), polyvinyl a 1 coho 15 PVA, paper, synthetic paper A material such as cel lophane, wax paper, ceramic, glass or the like, or a combination of the above materials may be a single structural layer, a composite multilayer structure, a foamed structure or the like. In practice, in order to facilitate the manufacture of such packaging materials, the packaging industry will add some plasticizers (p 1 a s t i c i z e r additives ) to the packaging product process. Therefore, the additives on the food packaging materials may be in the process of food packaging, storage, transportation or microwave heating, because of the direct contact with the food 4, which causes the food to be contaminated and hinder the health of the body. There are more and more serious trends in the requirements and restrictions on food packaging materials by the US Food and Drug Administration (FDA) and the National Health and Health Administration. In addition to requiring food to be contaminated by packaging materials, it also increases. The temperature resistance characteristics of packaging materials used at high temperatures and the specifications of low and high temperature cracking. Recently, the general knowledge and economic level of the general consumer has been greatly improved, and the high energy efficiency of the microwave oven and the convenience of cooking and heating have been relatively improved. Therefore, the search for and development of microwave-specific food packaging materials suitable for different temperatures, low cost and easy to use has become the goal of the current food packaging industry to focus on improvement and efforts. In addition, the sealed rapid warming packaged food uses microwave. When heating, the packaging bag is often blasted due to the rolling phenomenon in the sealed space. In order to avoid the explosion

1260270 V. INSTRUCTIONS (4) Elephants, general food packaging suppliers must build high-pressure and high-pressure gas generated in the packaging or trays before being cooked or cooked. In making heat ', like. The US Zlpi〇c company has produced a wave-free explosion-proof bag on its bag, and has taught its users to open a venting hole in the food bag for micro-use to avoid the explosion phenomenon and Z. (1) The food from the microwave heating process must be placed in an open service. This application makes it possible to lose a lot of volatile components in the product due to heat during the heating process. T-day V causes the food to become dry and hard and loses food: it is completely sealed or detachable, and it can be placed in the microwave oven, and if it is placed in the microwave oven, it will be ordered. The warming and pressurization of the confined food will eventually cause the bag to t-bend to the critical tensile strength that the packaging material can withstand in an explosive manner: bad packaging (4) 'At the same time, the water vapor is largely lost and the food is dehydrated into a non-wu flavor. Furthermore, when it is desired to heat cooked flour-related foods, such as steamed buns, mink, spaghetti, etc., the general method of use includes using a steam oven (stea^cooker) or food-coated wrap film and then using a microwave oven for heating. . Although the former can get the result of food, but the flour food will be swollen or smeared when the water is too much; while the latter can save time by coating the plastic wrap, but the food is heated by microwave, and the internal moisture will quickly go out. Loss, because the wrap film is not permeable, and its low dielectric constant material characteristics, the thermal conversion rate of the microwave energy in the micro-f heating process is lower than that of the food material with a high dielectric constant. The temperature itself will be lower, so these external water

Page 10 1260270 V. Description of the invention (5) ' ------ ^ ^ Condensation in the interface between the food and the cling film, resulting in the phenomenon that the food is protected from the paste part of the phenomenon The peaks have changed, which makes the food unsavory. Under [previous technology] In order to prevent g-mouth packaging materials from being used in microwave heating applications, there is a closed package heating, and the work of research and development continues until the beginning of the year. Developed, Bo Da Xi concentrated on wastewater filtration, air purification and filtration, paper diapers, moisture absorption, paper towels, breathable medical supplies, etc., but they are not applicable to food packaging microwaves, applications. One of the methods for producing these conventional gas permeable materials, such as the United States ~ number 3, 3 78, 507, 3, 3 1 0, 50 5, 3, 6 0 7, 793, 3, 812, 224, 4, 247, 498, 4, 466, 931 and 5, 928, 58 2 The technique disclosed in the present invention includes the use of an incompatible material to form a film, and then using an extraction method to dissolve a certain component thereof to form a pore-like structure, and most of the gas permeable material should be filtered and separated. And separation), such as Separator, which allows electrolyte flow, and Dialytic film for pure water purification or seawater desalination. Due to the inverse relationship between mechanical strength and porosity of the material, the material is applied. In the application of microwave food and stomach products, there is an explosion phenomenon in the process of microwave heating. When there is too much unextracted material in the microwave, the microwave heating process is easy to be due to the higher dielectric constant value of the ear. The energy is converted into a heat process to form a heat spot, so that the packaging material is partially dissolved by heat into the pores, and the volatile components in the food are largely lost. The material is not suitable for micro-processing.

Page 11 1260270

V. INSTRUCTIONS (6) Wave food packaging is used at a very high manufacturing cost and the extraction solvent recovery procedure is complicated. Another gas permeable material, such as the technique disclosed in U.S. Patent No. 5,8,5,9,6, utilizes a non-woven fabric or a fiber cloth having a gas permeable property. However, these methods all make the gas permeable film have macro porous characteristics, and are mostly used in applications such as disposable diapers and wet tissues, and are not suitable for microwave food packaging and are extremely expensive to manufacture. There is also a method of producing a conventional gas permeable material, such as the technique disclosed in U.S. Patent Nos. 3,679, 540, 4,187,390, 4,350,655, 4,466, 931, 4,777,073, and 5,340,646, by means of an inorganic material powder, such as carbonic acid. Fresh (CaC 03 ), titanium oxide (T i 02) or oxidized | Lu (a i2 qs ), _ is evenly pushed into the organic south molecular material 'such as polyethylene, and then extruded into a film. The film forming method includes a cylindrical drawing bag or a blow bag, a tenter stretching, a && extrusion shooting, etc. by a method of extrusion injection with a concentric die opening (d i e). Next, the film stretch stretching treatment is performed at a temperature lower than or close to the softening point of the material #^$. Although such a manufacturing method can produce & micropores, the manufacturing cost is too high and the difficulty is difficult. At present, such products are not practical ..., ~ like a rabbit, raw

Explosion phenomenon, similarly, the inorganic salt additive added therein is mostly a material with low specific heat and high dielectric constant. In the heated environment, the heat spot of the rut is easily melted through the packaging material. Hey. It is important to note that this method of manufacture can result in a product of a gas permeable film, such as elongation, processing temperature, film thickness, and raw material formulation, which can result in inconsistent pore sizes and the use of additives. Subsequent production has different effects, such as environmental problems. In addition, the exhibition is limited to thin

1260270 V. INSTRUCTIONS (7) __ Material selectivity, and manufacturing is often due to the addition of the ～ 夕 目 目 ( (.. phases), often do not have transparency after film formation, and then: vmuitiple steps. In addition, such a gas permeable material is applied to the food sigma and the spoon is to be added to the sputum. The additive adds pollution to the packaged food, causing the difference: when the stalk is on, there is (unpleasant odors). Such breathable membranes contact humans: when they are woody, they are not effective in blocking oil and alcohol. Therefore, because alcohol is consumed, it is impregnated with oil and alcohol, which further shapes b ^ = adsorption as a gas film in food. Packed and contains a small amount of oxygen scavengers inside the body. (When the use of this oxygen-removing agent is contaminated with oil and alcohol, the function of keeping it fresh will be achieved.) Or when the cooking process belongs to a microwave oven for direct heating, microwave heating often borrows food;; privately uses = several components such as water can effectively borrow microwave vibration effect;:: electrical energy to heat or cook the food itself, such microwave When the gas permeable membrane is heated by .$ = 2, and the body 3 has a low specific heat characteristic, the material is applied to the food during the microwave twisting process. Hotspots (five)... ng steam is more severely larger than the hole' hole, which causes the gas liquid inside the package to be outside the gas permeable film; easy to be another = filling items and high temperature sterilization process, the thief is easily peeled off. Prone to blasting problems When food bag body or clothing lone body 'response to Si packaging frozen, refrigerated foods for microwave heating is not

1260270 V. INSTRUCTIONS (8) The film layer needs to be opened separately; however, the food packaging case or bag of the gas permeable food has a short shelf life, because it is usually impossible to perform vacuum packaging or to fill carbon dioxide (carb〇). n dioxide, C02), nitrogen (\) and other inert gas packaging environment (modified atmosphere packaging MAP) process to extend the shelf life of food. In addition, the present inventors have been making improvements to the bag body or the box body for food microwave heating, and the inventor has invented the invention and approved the invention No. 522 1 Announcement No. "Packing Bag and Manufacturing Method" In this case, the gas permeable composite film material can be used as a packaging bag for food microwave heating to improve the shortcomings of the conventional gas permeable material and to provide convenient operation and use characteristics, and at the same time ensure that the water contained in the food is heated during the wave heating process. A large number of retained and contained microwave ovens reduce 'time-consuming cleaning and waste of water resources = in a closed structure before heating; in the heating process;;: =r repeats to make reversible materiality so that the material has an open single cut f,,, charge pre-open g σσ bag skirt or cut open - the early destructive microwave heating use method has great difference. SUMMARY OF THE INVENTION The main object of the present invention is to provide a food. The composite film and the manufacturing method for the device, the special pressure-regulating package or the bag body, are placed in various food packaging boxes, and then sealed and sealed in a variety of food packaging boxes. ,

Page 14 1260270

ί coating ^ placed in the normal storage and transportation process can maintain a closed packaging and direct v East = with a shou can be directly taken out of the freezer, and directly microwave, / sensation strips and other heating methods to regulate the food and eat, so that This kind of difference is rumored that the food packaging 5 is heated before conditioning, such as heating in a microwave oven ^: pre-opening the packaging tray or bag container or puncture the hole to avoid heating in progress = 岔 closed gas explosion phenomenon, the present invention is time-saving Convenient, energy-saving = two cold; East refrigerated food merchants provide a revolutionary packaging concept, working 2 groups of f students can directly select the various types of cold-frozen foods they need from super-business or quantity hotels, place In the refrigerator freezer, you only need to take it directly from the 'water pivot' and heat it directly in the microwave oven to enjoy the hot food. The invention belongs to the applicant team and the original core invention patent technology. And the application of technology, its core technology has recently obtained the Republic of China invention patents No. 482722, 522123 and 5428 1 2, how to prepare the automatic adjustment of the present invention Pressure packaging equipment, in the process, combined with various technologies, such as special micro-crack structure rolling wheel set, plastic 'forest film machine, corona treatment machine and coating machine, etc. The utility model integrates and applies a special micro-crack structure rolling wheel set, which is mainly used for preparing a key reversible adjusting pressure substrate film layer in the automatic pressure regulating packaging device of the present invention, in which the substrate layer is pressed and pressed Forming a plurality of micro-gap structures on the substrate film layer 5 is additionally required to adjust the temperature of the high-temperature vapor pressure, and the number, shape, distribution density of the cracks on the film layer of the substrate can be controlled by design. Distribution position, substrate film thickness and substrate film material

Page 15 1260270

And other factors to determine, the required type of pressure in the pressing process is a batch--------------------------------------------------------------------------------------------------------------------------------------------------------------------- ;T ? 2 —' A plurality of cusp structures, which can be obtained by the following methods: (1) high-hardness convex gold ^ big moon brush) or needle wheel (needie roH). 2) Resident, ', * W1 re ^ wrong plating method will release the polyhedral diamond granule powder or high hardness ~ ~ ~ 颏 like granule powder evenly plated on the surface column 3) w laser # cutting method will be hard organic, Metal or ceramic material engraVlng) is a rolling surface with a plurality of pointed structures.

Laser-cut Tauman anil〇xr〇u wheel; (4) Using a mechanical tool [tool lng), a metal surface pressure of required hardness = a desired surface with a plurality of pointed structures Then, the high-pressure back to eight, ultrasonic hardening treatment method to obtain the final required pressure surface; (5) a metal surface after chemical electrolysis into a uniform convex structure, and then The surface hardening treatment is a hard pressing surface. The pressing wheel or the pressing surface material corresponding to the pressing wheel may be a metal, plastic steel or ceramic material having a suitable hardness. As described above, regardless of the use of an electroplated diamond wheel, a mechanically-pressed (t〇〇Hng) processing wheel or a surface laser-engraved rolling wheel, the structure has a plurality of micro-gap structures by a squeezing process. The micro crack structure region, where the micro crack structure region shape may be various shape cracks. The formation is essentially a gas permeable structure. Here, according to actual needs, the pressed film 2 tabbed film has the desired sealing and venting function characteristics and structure ^ which can be selected by appropriate materials and matching different calendar wheels, rolling

Page 16 1260270 V. INSTRUCTIONS (11) 2 The structure and the actual application environment have different conditions to obtain an optimal group. Second, the micro crack structure region of the present invention can also be used.

There are different distribution designs, here the micro-crack structure of the present invention:: also; due to the actual i: Ge and Gu π π Fu l£E domain also J cloth, local regional distribution, the formula to the Η 面 face f knife Cloth, as for the lack of your staunch ruler 7 knife cloth, or the irregularity of the 'Beige use day machine and application mechanism, then the end view is added to the US # film ΓΉ ΓΉ r r factor, (4) has flexibility匕ίΓ ^ The protrusion T g A $ on the pointed squeezing mechanism used by the invention; type, conical, pyramid, square pyramid, multifaceted angle ^ or other type, after rolling processing, In:: 舨 刀 knife material, due to its own viscoelasticity (ySC〇eUstlcity) and memory effect, the crack structure material structure of the substrate film, at this time can:: =; light wheel set processing, the substrate leveling recovery On the eve of the eve, the pseudo plan of the seam, the structure of the °, the micro-crack structure of the calendered de-shoulder will also be in the pseudo-, segmental, conical, pyramidal, square pyramid, Multifaceted = should be I Ϊ J quilted shape or other types of cracks or cracks The temperature-controlled over-pressure tearing substrate applied by the combination process has a flatter appearance, a uniform thickness and a beautiful appearance. Therefore, in order to facilitate the object of the present invention, a sealed, composite film for a device, including a base, is provided. Material film layer, the micro-crack structure of the base film, the geometry of the micro-crack structure can be

IHS

Page 17 1260270 V. INSTRUCTIONS (12) =, the average size of the micro-crack structure is between 〇·i micro, and the adjacent edge of the micro-crack structure is physically close contact ma〇 (Physically contact t〇each 〇 Ther); another layer, which may be covered by the plurality of micro-crack structure regions, wherein the film is bonded to the substrate film layer having a plurality of constituent regions by another adhesive layer. 々 衣 衣 、 、 、 、 、 、 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本The microwave has an adjustable pressure to avoid the creation of various creative species for the wave-like heating. In the process, the laminated film produced by the weaker boundary or the multiple microscopic energy can be applied to the microwave heating device of the packaging device to have a plurality of microscopic layers in the food, so that the surface heating process of the material should be Packing and blasting. The food package used has not yet been invented and has a high temperature and high pressure hot edge sealing and translucent adhesive layer coating, dry crack structure zone packaging device in the general room temperature process, which contains various materials heated through the crack structure area becomes soft And the adhesive can be gradually lost to form a gas permeable film which is heated on the packaged functional food package of the present invention, that is, the packaged food package, and the vapor can be timely air passage and the guide material can be heated and bonded to the substrate. The substrate film of the domain generated by the packaging bag or the sealing layer of the frozen temperature adhesive layer touches the high temperature and its characteristic channel, so that the process is based on the same body, and is extended and closed for the purpose of extension. Open the preset lead-in-phase high-pressure adhesive film coating 'linking sealing layer, so that the final packaging plate is a closed film layer, because the steaming layer of the local temperature is automatically applied to the spa gas or oil. The composite film layer has a high temperature and high vapor property, and the inventor has improved in the past _ and

Page 18 1260270 V. Description of invention (13)

Adjusting the pressure regulating area to the external atmospheric pressure, while maintaining the area in which the food is contained, can continuously and effectively heat the steam at high temperature and high pressure, and overcome the technology of inevitable rupture during the microwave heating process of the conventional sealed packaging box or bag body. In the general storage and transportation process, there is no leakage of liquid food such as broth due to external force, and it can be provided for empty packaging applications, or by filling with carbon dioxide (Carb〇n di〇xide, Co /, nitrogen ( N2) and other inert gas changes in the packaging environment (m〇dif2 atmosphere application, such a concept, and when sealing conditioning, can be cooked and conditioned, and in a shorter way, finally in accordance with the invention, a microwave food inconvenience and limited environmental protection Charcoal charcoal, no pollution, avoiding this contact pollution and manufacturing of the invention, can be applied to any fresh or cooked food packaging, and can be taken from the freezer. Energy-saving, providing a nutrient without loss, and proposing - special packaging materials, =, materials Formulation design, materials in complete combustion = pollution hazard, food Shishi package nest materials in micro: can avoid the use of temperature increase mouth and packaging materials with features and customer needs process to extend the supply of frozen cold products can be long-term insurance It is saved in the process of thawing, no food, food and food packaging have been overcome. After burning very much, 'only the external wave is not heated or the pressure is very wide, so it's the whole food. Invented fresh packaging, and the heating device 'can fully contaminate the kitchen and the hot breathable beauty of the breathable material, the existing microwave package elasticity, can generate water and two substances pollution, in addition to the gas explosion in the cooking process The temperature makes the product resistant to temperature, and the new packaging material is used for cooking and heating. It is easy to clean and eat. The material is completely oxidized and can be used with food.

1260270 V. Invention Description (14) The specifications are optimized for materials and specifications. On the disc, the following d? gas permeable film is applied to the packaging bag or the π $ ^ structure is used as the base film layer for all or part of the area, and the clothing and jade are produced by a plurality of micro crack structure regions, and On the area of the crack structure of Yu Zhengzheng, the glaze 荽 吐 吐 匕 匕 匕 匕 匕 匕 匕 AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU B is closed or right, and the food inside is heated to produce high-temperature steam and Γ ', I '. The inch will cause the adhesive layer in the immediate vicinity to be softened and gradually detached by the solid, and the film is old, and the old is too U ^ ^ ^ ^, 〇 ^ cracks are spread Π 7 冋 冋 产生 产生 产生 产生 产生 产生 产生 产生 产生 产生 产生2 ^ \ί ^ 1 The work space becomes larger. At this time, most of the micro-fracture structure areas = the safe vapor pressure adjustment with less resistance (4), which can avoid the hot air that slowly accumulates in the bag during the thermal process. With high pressure steam

Ot ail· and steam buildup) The instantaneous explosion hazard phenomenon 々^, the invention has a high-temperature gas-permeable package bag. For food, the cooked food can be directly frozen and frozen for use, and then used as long as it is eaten. Place it in a heating device, such as a microwave oven, directly reheat it. After heating for 4 foods for a short time, the package film can be peeled off and the food can be directly used. The above described objects, features, and advantages of the present invention will be more apparent from the following description of the preferred embodiments of the invention. Composite film and manufacturing for heating automatic pressure regulating packaging device

Page 20 1260270 V. Description of invention (15)

= Method 'The first, second and third pictures of tea, mainly according to the package of various frozen and refrigerated food packaging boxes (1) after the open end is covered by a heat-pressing base film layer (2) The base film layer (2) is processed by a crucible pressing process to form a micro crack structure region (2丨) of a predetermined range before the coating is applied, and the micro crack structure according to the base film layer (2) The width of the area (2丨) depends on the sealing film layer (3) which must be larger than the range, and follows the side of the sealing film layer (3) (ie corresponding to the micro-crack structure area (2丨)). The cloth is adhered to the micro-crack structure region of the base film layer (2) by the adhesive layer (4 ^ ' as shown in the third figure', the sealing film layer (3) and the adhesive layer (4) are correspondingly bonded. The surface layer (as shown in the second figure) is used to complete the sealing of the base film layer (2) with the a film layer (3) bonded to the open end of the package (1). The package with the substrate film layer (2) (1) has a cold/east $ σ port inside the microwave heating (refer to the fourth figure), when the food is heated to generate high temperature and high pressure Gas, that is, through the base film layer (2) set = micro, seam structure area (21), and the adjacent adhesive layer (4) began to penetrate due to the enthalpy of heat (5) The adhesive softens and loses the original adhesive strength. The sealing film layer (3) coated with the adhesive layer (4) is separated from the soil film layer (2) from both sides, and the inside of the packaging box (1) is overheated. High pressure base gas

The microscopic crack structure area (21) covered by the sealing film layer (3) is: i: out, wrong &, to adjust the heated high temperature and high pressure vapor according to the venting area to avoid the packaging box. Blasting occurs, a box (1) inside the high temperature helium gas (5) 詈 production ^ products will not become dry and hard, delicious, not to lose ... to ensure that the food is heated another 'the design of the food heating automatic pressure regulating packaging I Application of composite film

Page 21 1260270

Fifth, the invention description (16) ^ ^, can be applied in the packaging bag (6) (such as the fifth and sixth figures), this gum pocket (6) is

The composite film with the high temperature and airtight type of the above-mentioned automatic pressure regulating package is designed according to the shape of the bag body (6 1 ), and the bag body (6 1 ) opening 2: zipper sealing edge (6 2 ) The setting can be conveniently sealed as a bag body after the package device is frozen > ~ RM. For the shape bag (6), the film layer having the pressure-regulating form is in the form of a pressure-permeable base film layer on either side of the bag body (61), and the film is pressed before the molding. The micro crack structure region (63) of the predetermined size is processed, and the sealing film layer (7) which is larger than the range is determined according to the width of the micro crack structure region (63) of the bag body (61). , according to the sealing film layer (7) - side (ie corresponding to the micro crack structure region (63)) for uniform coating with the adhesive layer (8) (as shown in the seventh figure) 'the sealing film layer (7) The adhesive layer (8) is correspondingly attached to the surface of the micro-crack structure region (63) of the bag body (61), thereby completing the packaging bag (6). Layer (7) automatic pressure regulating composite film setting. The frozen and refrigerated food inside the packaging bag (6) is heated in the microwave, as shown in the seventh figure, and is also heated in the food to generate high temperature and high pressure steam (9), which starts to pass through the bag body (6 1 ). Micro crack structure area

=3 will be in contact with the heated vapor to penetrate the layer (8) of the sealant layer (7) from the two =;, thus, the point of the bag (6) inside the superheated steam (9) ) can: ° off the bag body (61), so that the micro crack structure area (63) of the package is facing outward = the party sealing film layer (7) covers the high temperature and high pressure vapor according to the gas permeable area for 6 = extrusion, At the right time, the heat (6) will be blasted, and the package will be adjusted to avoid the high temperature steam inside the bag &

1260270 V. INSTRUCTIONS (17) Loss of quantity 'Maintain the deliciousness of the food that has been heated.

The film layer (2) applied to the open end of the package (1) or the bag (61) of the packaging bag (6) has at least one material selected from the group consisting of acrylic, Polyester (p〇iyester), polyethylene (PE), polypropylene (p〇iypr〇Pyiene, pp), polyfluorene &amine, ethylene-styrene (ethylene-styrene) Cop〇;lymer, ES), cyci〇olefin, polyethylene terephthalate (PET), polyvinyl alcohol (p〇lyVinyl alc〇hol, PVA), ethylene Ethylene acetate (EVA), ethylene vinyl alcohol (ethylene vinyl alcohol,

E: VOII), ionic polymer compound, polyethylene naphtha late (PEN), polyether ether ketone (PEEK), polycarbonate (PC), poly maple (polysulfone), polyimide (PI), polyacrylonitrile (PAN), styrene acrylonitrile (SAN), polyurethane (PU), nylon ( Nylon), wax paper, polymer multilayer coextruded stretch film, synthetic paper, glass paper, polymer material, paper, paper, etc. or a group of the above materials. The sealing film layer applied to the micro-crack structure region (2, 6 3 ) of the open end substrate film layer (2) or the bag (6) bag body (6 1 ) of the above packaging box (1) is at least Made of a combination of materials, optional olefin polymer

Page 23 1260270 V. INSTRUCTIONS (18) (polyolefin), polyethylene (PE), polypropylene (PP), polyester film, polyethylene terephthalate (PET) ), polystyrene, polychloroethylene, polyethylene glycol to polyethylene naphthalate (PEN), polyether ether ketone (PEEK), polycarbonate (polycarbonate, PC), poly Poly imide (Ρί), poly maple (p ο 1 ysu 1 f ο ne ), polyacrylonitrile (p ο 1 yacry 1 ο nitri 1 e, PAN ), acrylic, polyethylene Propylene copolymer, ethylene-styrene copolymer (ES), cycloolefin, polyvinyl alcohol (PVA), ethyl acetate (ethylene) Vinyl acetate, EVA), ethylene vinyl alcohol, 'styrene acryi〇riitriie (SAN), polyurethane (p〇lyurethane, pu), nylon ( Nyl〇n), polyamide, ethylene ethylene copolymer Ethyiene-styrene (3)P^ymer, ES), ionic polymer compound, synthetic paper, wax paper, polyethylene non-woven fabric, polypropylene non-woven fabric, inorganic plastic film, synthetic paper, multi-layer co-extension film, multi-layer composite a material such as a film or a combination of the above materials. The sealing film layer may also be selected from a group consisting of a composite film laminated or vapor-deposited with a metal film, and the metal layer is selected. From aluminum or aluminum alloy. Applicable to the above-mentioned packaging box (^ open π-end substrate film layer (2) or packaging bag (6) bag body (6U-bonded sealing film layer - side layer uniform sentence coating dry Layer material

Page 24 1260270 V. Description of invention (19)

Can be selected from the group consisting of polyacrylics, polyesters, polyolefins, polyethylene (PE), polypropylene (PP), cycloolefins, polyvinyl alcohols. (polyvinyl alcohol, PVA), ethylene-vinyl acetate (EVA), ethylene vinyl alcohol (EV0H), polyolefin derivative adhesive, polyamide , nylon), polyurethane (PU), polystyrene butadiene copolymer, polyethylene polypropylene copolymer, ethylene styrene copolymer (ES), cyclic dilute polymer (cyclo 〇lefin) , single liquid primer, two liquid primer, rubbers, hot melt elastomers, silicone elastomers, ionomer compounds, thermoplasticity Thermal plastic rubber, palmitic soil, paraffin wax, microcrystalline grain, peak cane, natural wax, rice (PE) synthetic wax, oxidized polypropylene (PP) wax, poly Ethoxy resin (PE〇) wax, and other petroleum products, mineral oil, poly-smoke (P 〇 1 y 〇 1 e f i n ), butterfly oxide synthesis butterfly, etc.

Man-made wax or synthetic wax, fatty acid (fa 11 yacid ) and its derivatives, and the powder of the temple powder and its powdery material, or a combination of the above materials . Wherein the 黏 adhesive layer may be adhered to all or part of the area to cover the substrate layer having a plurality of = crack structure regions. &The micro-crack structure area (2 1 , 6 3 ) of the base film layer ( 2 ) or the packaging bag ( 6 ) of the bag end (1 ) ),its

1260270 V. INSTRUCTIONS (20) The area of the area is optional for all or part of the range. The second garment (6) of the sealing layer on the side of the sealing film layer (1) to which the open end substrate film layer (1) is bonded may be coated with an adhesive material solution and dried. Ancient = layer coating method, press-fit. ', summer hot melt coating or heat for the use of the food heating automatic pressure regulating package of the invention strong = if necessary, there is a solid content and aqueous solution; === refrigeration Store separately at temperature to avoid the deterioration of the food in the bucket, such as rice and pasta and = one practical application example, for the body of the aqueous solution - the sealed bag of the present invention or The packaging tray is sealed and filled with solid:::: = in the automatic pressure regulating packaging device, so that it is heated by microwave: to make the packaging bag or packaging material soft and preferentially peeled off, and... Sealed packaging or packaging tray Released from the device;:: Body: = liquid is preferentially mixed and heated from the back. The grain in the body is mixed, but the characteristics of the invention are not here, so it will not be described again. In addition, the gas permeable material film of the present invention may also be used. Made of back-sealed bags, edged bags, three-way bags, vertical Various types of packaging application bags, such as back sealed bags gadget bags ^ three sidles bags ^ or standup pouches. Although the present invention has been disclosed above in a preferred embodiment, it is not intended to limit the invention, and any skilled artisan The scope of the present invention is defined by the scope of the appended claims, and the scope of the invention is defined by the scope of the appended claims. 1 is a schematic view showing a structure of a film layer of each of the sealable and automatic gas permeable pressure-regulating composite film of the present invention; FIG. 2 is a package sealing and sealing device capable of sealing and automatic gas permeable pressure-regulating structure. Figure 3 is a schematic diagram of the cross-section of the composite film of the film structure which can be sealed and automatically ventilated and pressure-regulating; Figure 4 is a sealed and sealed air-tight pressure-regulating package Schematic diagram of the packaging container of the structural composite film, which is ventilated and adjusted for vapor pressure after microwave heating; Figure 5 is a combination of a package and a sealable and automatic gas permeable pressure-regulating composite film Figure 6 is a schematic view of a film-forming layer structure; a package is combined with a sealable and automatic gas-permeable pressure-regulating composite film, which is schematic before microwave heating; Figure 7 is a package combined with a sealable and automatic gas-permeable pressure regulator Schematic diagram of the structure of the composite membrane, which is automatically ventilated to adjust the high temperature vapor pressure after microwave heating. Graphical description 1: Packing box 2: Substrate film layer 3: Sealing film layer 4: Adhesive layer 5: Heat vapor 6: Packaging Bag 7 : Sealing film layer 8 : Adhesive layer

Page 27 1260270 Schematic description 21 microscopic crack joint structure 61 bag body 62 zipper sealing edge 63 microscopic crack joint structure area t

BB第28页

Claims (1)

Sixth, the scope of application for patents 1 · The composite film for the food heating and pressure regulating packaging device, at least comprising a film with a base material and according to the area of the seam structure which is necessary to be larger than the sealing film, the product is heated in the majority The adhesive layer is separated from the substrate by a layer of the base material film layer of the ventilated high-temperature vapor, and the surface of the side adhesive layer surface is packaged in the German package, and the sealing is combined to form a south temperature micro crack due to the shape of the heated vapor film layer. The width of the micro-fracture structure region of the plurality of micro-crack structure regions generated by a large number of compression processes is determined by uniformly coating the adhesive film layer on one side of the sealing film layer, and the layer is correspondingly applied to the substrate. In the micro-cracking of the film, when the microwave is heated in a closed type of frozen and refrigerated food under normal temperature, refrigerated or cold, the gas of the two pressures will pass through the structural area of the substrate film. Acting on the surface of the adjacent adhesive layer, softening after the action of the gas and gradually losing the adhesive strength to form a gas permeable passage, so that the high temperature and high pressure vapor can be saved and the packaging is avoided. Home explosion occurred, while ensuring that food wastage and dries hard in danger. 2. The composite film for food heating automatic pressure regulating packaging device according to claim 1, wherein the substrate film layer contains at least one material, and is optional from acrylic or polyester. Polyester, polyethylene, polypropylene, polypropylene, ethylene-styrene copolymer (ES), cycloolefin ), polyethylene terephthalate (polyethylene) Page 29 1260270 Six 'patentable range terephthalate, PET), polyethylene glycol (p〇iyvinyi aic〇h〇l, PV A), ethylene-ethylene: ethylene vinyl alcohol (EVOH), Ethylene-vinyl acetate (EVA), ionic polymer compound, polyethylene glycol, polyethylene naphthalate (PEN), polyether ether ketone (PEEK), poly Polycarbonate (PC), polysulfone, poly (p-pilyimide, # PI), polyacrylonitrile (PAN), styrene acrylonitrile (SAN), Polyurethane (PU), nylon (nylon), wax paper, polymer multilayer coextruded stretch film, synthetic paper, gausine paper, polymer coated paper, paper, etc. A group of materials combined. 3. The composite film for food heating automatic pressure regulating packaging device according to claim 1, wherein the sealing film layer is composed of at least one material selected from the group consisting of an olefin polymer and a poly olefin. Ethylene (PE), polypropylene (PP), polyester film (polyester film), polyethylene terephthalate (PET), polystyrene, polyvinyl chloride, polyethylene glycol, naphthalene Polyethylene naphthalate (PEN), polyether ether ketone (PEEK) 'polycarbonate (PC), polyimide (PI), polysulfone, polypropylene Polyacrylonitrile (PAN), acrylic, polyethylene polypropylene copolymer, ethylene styrene copolymer (ethylene - Page 30 1260270 VI. Patent application range styrene copolymer, ES), cyclene olefin, polyvinyl alcohol (PVA), ethylene-vinyl acetate (EVA) , styrene acrylonitrile (SAN), polyurethane (PU), nylon (nylon), poli/amide, ethy 1 ene -styrene copolymer, ES), ionic polymer compound, synthetic paper, wax paper, polyethylene non-woven fabric, polypropylene non-woven fabric, inorganic plastic film, synthetic paper, multi-layer co-extension film, multi-layer composite film, etc. One of the above combinations of materials. 4. The composite film for food heating automatic pressure regulating packaging device according to claim 1, wherein the sealing film layer is selected from the group consisting of a plastic film lamination or a steaming bell-metal layer composite film. Ethnic group. 5. The composite film for food heating automatic pressure regulating packaging device according to claim 4, wherein the metal layer is selected from the group consisting of aluminum or aluminum alloy. 6. The composite film for food heating automatic pressure regulating packaging device according to claim 1, wherein the adhesive layer material is selected from the group consisting of polyacrylics, polyesters, and olefin polymers. Polyolefin), polyethylene (pE), polypropylene (pp), cycloolefin (cyclo 〇lefin), polyvinyl alcohol (p〇iyVinyi alcohol, PVA), ethylene-vinyl acetate (ethylene-vinyl acetate, EVA), ethylene vinyl alcohol (EVOH), polyolefin-derived rubber (p〇ly〇lefin deri vat i ve adhesive), polydecylamine (nylon), polyurethane η II I 1260270 VI. Patent (polyurethane, PU), polystyrene butadiene copolymer, polyethylene polypropylene copolymer, ethylene styrene copolymer (ES), cyclic olefin copolymer ( Cyclo olefin), single liquid primer (primer), two liquid primer, rubbers, hot melt elastomers, silicone elastomers, ionic polymer compounds Ionomer), thermoplastic glue ( Thermal wax), palm wax, paraffin wax, microcrystalline wax, peak wax* and rice bran wax, etc. natural wax, polyethylene (PE) synthetic wax, oxidized polypropylene (PP) wax, polyoxyethylene resin (ΡΕ0) wax, and other synthetic petroleum products, mineral oils, polyolefins (p〇ly〇lef in), waxy oxides, synthetic waxes, etc., man-made wax or synthetic wax, fatty acids ( Fatty acid) and its derivatives, as well as materials such as starch and its starch-containing derivatives or a combination of the above materials. 7. The composite film for food heating automatic pressure regulating packaging device according to claim 1, wherein the sealed and sealed frozen and refrigerated food packaging device can be made into a container or a bag (bag) ). 8. The composite film for a food heating automatic pressure regulating packaging device according to claim 7, wherein the container or the inner bag of the bag has a container for filling water and a valley liquid, and the microwave During the heating process, the container is opened and the aqueous solution is released. 9. The composite film for food heating automatic pressure regulating packaging device according to claim 1, wherein the substrate film layer may have a plurality of micro crack structure regions in all or part of the region. 1 0. The food heating automatic pressure regulating package as described in item i of the patent application scope 1260270 VI. Patent Application Scope A composite film for a device in which the adhesive is covered to have a plurality of micro-twisted layers which may be wholly or partially viscous η. A food is heated from the regional substrate film layer. The method includes: °° 1 manufacturing of the composite film for the armoring device, using a substrate film produced by a one-pressing process; the latter several micro-cracking structure regions apply the adhesive layer to the structure The width of the area must be greater than one, the microscopic crack of the soil layer, the above-mentioned sealing film layer "== layer-side surface; should be foraging: two heat automatic adjustment factory Jianbao dress: use i ^ : layer The manufacturing method of the composite film for the device can be installed, and the surface of one side of the coating layer is automatically heated by the 0-port heating; ^: the layer is applied by sealing drying or direct hot-melt coating. Wood coated with 'material solution 4 1260270 VI. Designated representative figure Second figure Graphical symbol description Packing box Substrate film Sealing film layer A-A : Cross section