TW200304888A - A package - Google Patents

Abstract

The invention relates to the application of flexible or diffusible films to form an openable sealing means on packages. In particular, the invention relates to the application of flexible of diffusible films to form an openable sealing means on packages for containing food that are intended to be being heated by microwave ovens. The current invention is a simpler and a more convenient solution to contain the food by packaging that will enable the food to be heated without the need of puncturing the packaging prior to heating.

Description

200304888 V. Description of the invention (1) '-[Technical field to which the invention belongs] M. The present invention relates to a bag, and in particular, to a microwave heating bag applied to a bag of food to be heated by waves. [Previous technology] Pressing, ready-to-eat meals that can be eaten by heating in a microwave oven has become increasingly popular. The preparation process is to put the prepared food in a packaging bag, and then quench it to maintain its freshness and then distribute and sell it. " ,, [During the food heating process, the water in the food quickly volatilizes and forms water vapor. 'It is known that the packaging bag will heat up during the heating process, and the pressure inside the bag will increase with the increase of water vapor. Sometimes it even bursts, the food maker is in micro-weaving, or the conventional bag is opened; j sheet extension splashes out. Sentence # = tiτ to prevent this from happening, consumers usually use the knowledge of dental cavities to allow water vapor to escape from the bag. But sometimes the piercing is too large. J = will allow the excess water vapor to leak out and cause the food to be too dry after heating. =, The holes are too small or too small, and the water vapor is still in the bag. When the bag is opened or bursts, it will cause splashes. The situation will also affect the deliciousness of the food. Xiao Lu 丨 species Gu & here ^ The purpose of this description is to provide a bag, which is applied to micro- / hot-heated bagged foods', without having to pierce before heating, causing food to spill or splash. Focusing on the conventional invention to solve this problem: US Patent No. US 4 4 6 1 4 2 O (HorvathLaszloS) Building

Page 5 200304888 V. Description of the Invention (2) A bag with a venting effect is disclosed, which contains a regulating film, which is welded to the inner layer of the cover film and exposed after the cover film is torn. The conditioning film. The cover film is pre-attached with a tear line for tearing. The conditioning film allows water vapor to escape, but does not allow water to escape. International Patent Case No. W09 9 5 9 8 9 7 (Read M. Peter and Sm. The envelope or film for sealing a food container according to the present invention has two layers, a continuous layer and an eyelet layer. These two layers are placed close to each other. The so-called close to each other is connected together by adhesive or heat bonding. The perforation layer includes 20% to 50% of perforations, the diameter of these slits is 1 to 10 mm, and the distance between each slit is 1 to 10 mm. When the food is to be cooked, the continuous layer is first peeled from the perforated eye layer, and then the perforated eye layer is exposed. German patent case GB 2 2 1 3 6 8 9 (GriffinCJohon) file discloses a microwave container, which is provided with an isolation plate or cover to allow the water vapor generated by food to be heated or cooked. The cover of the invention has holes, which are scattered in most of the space of the cover, and the function is to allow water vapor to radiate. The PCT / NZ9 8/0 0 1 9 5 (Tang, Luen and Sing) trough case discloses the use of a bag and its raw materials, which is used as a bag for food and beverage containers. The bag can be easily used without using scissors at all. Torn apart. The bag is multi-layered, with at least one dashed line attached to the inner layer. This dashed line is completely side by side with the outer layer. This dashed line can be torn apart.

200304888 V. Description of the invention (3) Extend from one end of the bag to the other. The dashed line may be a pinhole type, it may also be a black dot symbol hole type, or any dashed line that can interrupt the inner layer. In other words, the dotted line may be the weaker or thinner part of the inner layer. Usually, opening marks such as small openings, faults, and notches are provided on the first tip of the bag as a convenient opening for tearing.

PCT / NZ0 〇 / 〇 〇 18 (Tang, Luen and Sing) eaves case disclosed 5-a method of sealing bags. The sealed bag must be a three-layer type. The first layer is a continuous layer with a dotted line (the dotted line can be pinhole type or reduced diameter or cut open). The second layer is a gap, and the third layer, which also has a dashed line but is optional, covers the first layer. The first layer and the third layer are for tearing before heating. When the first layer and the third layer are torn, the pores in the second layer appear in front of the eyes for water vapor emission. [Summary of the Invention] The meaning of some specific terms under this patent right; the term "bag π" includes all kinds of food containers used in the scope of this patent right, such as pouches, packaging bags, and anything related to containers. Please refer to the following detailed description and accompanying drawings of the present invention, but the drawings are provided for reference and explanation only, and are not intended to limit the present invention.

As mentioned earlier, the present invention relates to a stretchable or expandable film, which can form an openable sealing method. This is a microwave heating bag applied to bagged food that requires microwave heating. It is characterized by a flexible or expandable bag film as the sealed opening of the container food bag. The present invention provides a convenient bag packaging method for container food. Using this bag packaging method avoids

Page 7 200304888 Welding or sealing is to expand the sub-bag on top of the small bag in the ο annoying broken) (4 Kumingzi sharp bag £ to the heat of the guild to avoid the mouth splash protection and the full connection迸 Yi was also able to finish the project, but he would return the water to the bag if there was any heat in the bag. If the film was collected in the inner esophagus, it would be filled with flavor, and the thin food bag would be sealed. Zizi Sanbao sound-enhancing hair-seal bags have good lamination and a single layer / cracking method. The seed hole is now torn from the square before drying. First make the cause of gasification or steam the simple noodles at the end of the bear. Wear it. No irritation is caused by water. When the line is broken, it will cause the first bag to burst. This will happen. This place must be used in action. No, it is necessary to connect the heat from the front, but the heat of t is used as a gap one by one in a row plus-the first incarnation of the complex I ο 』and in the food. C Minglai will be in the middle. Feng Zifa (1 from the beginning is an example of a dense bag, this piece of the film, the current picture, the thin layer of the film, the thin layer of the thin film, a solid, multi-parallel strip, and the first appearance, please interrupt carefully. Shown between the main film If it is thinned, then the 2nd bag of C is sealed and the hair dryer is closed. Ο and the side of the bag is ο to indicate that it is acceptable.} From the diagram ο is a shape 3} It is ten types of 1 ο, when 5 is waiting for 1, the C seals the end to close the second C 丨 body, and the edge seal is shown as the main piece of C. The thin bag layer is thin as shown above. As an example, consider the fine-layered broken edges and multiple layers of opaque layers. The actual expansion can not be closed, but the seeds are sealed and the ends are closed. Figure 5 is (1 refers to the end of the drawing. Head first dense arrow 5 The first weekly seal is formed or the dense lower edge is formed into the rear dense edge to seal the defecation and the edge bag is thinned or sub-closed to the edge bag. It means that \ \ must go out when you must go out. The arrow is a table.

200304888 Qing 1 can be used as a c body, and the main and middle layers are shown in multiple layers. Package} layer diagram six top first. Examination film d thin ginseng, white sample drawing, face bag, two open seals, i 'Sanchu piece, thin strips, thinly spreadable layers, more 2 and 1 Λ7 / TV ο body 2 owner And the layers at the top often refer to the arrows and the bottom of the layer, but the thin layer of the τ-Η layer: the arrows in the bottom and the top of the layer. Stay within.器 丨 容 5 In the IX seal, the end-cooked food will be sealed in a shape that will be sealed on the side, and then sealed or sealed on the edge. Ί × AV \ ^ / 白 主 主 层， 2 down ο 2 ο 2 shape is the dense seal at the end of the phase 丨 forming 1 edge (1 side body seal will be more dense layer. The shape part turned down is βί it mouth body two main number 0, Fado} IX side. The side of the picture is similar to the side layer of a class 0) the first or ο ο include IX sound C bag super bag piece or thin RF food strip or detail method said that the expansion and sealing are as dense as Figures and thermal Erjiadi use ο 2 2 2 2 how to 3 ο layer three bodies (1 the main layer or a lot of layers} ， 2, including 3 to include meaning is only

2 0 r ~ H CXI and 2

rH 3 On the film, there is no thin layer, the second thin, the third, and the third expansion. ΊΧ 1L can be two layers T—Η 1 three C. The super layer has three layers—the upper one) tl person 2 or real 3} image 1 Figures, five out of two, two test plans, one, three, three, one, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three, three 3 3 IX 2 2 Examinations are shown as the original or polymer layer, the innermost product and the second layer, and the second and the first ethylenic polymer are called or the layer of the most original child bag. It is a layer of the third or third person that is glued to or is used for welding. The pressure should be melted and squeezed to fit the layer agent, or it can be used as a sealer or confidential. Three and sticky dragon rubber. Glue, raw material, raw material, suitable heat, suitable for heating and heating

200304888 V. Description of Invention (6) < It is also the second picture. The raw material used for the outermost layer or the third layer (1 3 3) of the multilayer body (1 2 0) and the bottom layer or The raw materials for the first layer (1 3 1) are the same. Used as the raw material for the outermost layer or the third layer (1 3 3) of the diffusible thin strip (1 3 0) and the raw material selected for the innermost layer or the third layer (1 2 3) of the multilayer body (1 2 0) Is the same. The second layer (1 3 2) of the diffusible fine particle (1 3 0) can be made from any of the above-mentioned raw materials; for example, polyethylene and its derivatives, or polyester and its derivatives, or polypropylene and its derivatives , Or nylon and its derivatives, or any other suitable raw materials, as long as the raw materials are suitable for microwave heating. In other words, the raw materials used may not necessarily be the same as those used for the second layer (12 2) of the multilayer body (120). All three layers are applied to the seal or laminated seal to each other, or are glued with a suitable adhesive or squeezed with an organic additive. The fifth figure is a side view of the cuff bag (100) without the third layer (123, 133). The first layer (1 2 1) and the second layer (1 2 2) of the multilayer body (1 20) can be made of polyethylene and its derivatives, or polyester and its derivatives, or polypropylene and its derivatives. Materials, or nylon and its derivatives, or any other suitable raw material, so long as that raw material is suitable for microwave heating. All three layers are applied to the seal or laminated seal with each other or with suitable adhesives for gluing or organic additives for squeeze sealing. It is also the fifth figure. The raw materials used for the outermost layer or the third layer (1 3 3) of the multilayer body (1 2 0) and the bottom layer or the first layer used to make the thin thin sheet (1 3 0). The raw materials for one layer (1 3 1) are the same.

Page 10 200304888 V. Description of the invention (7) It is used as the outermost layer of the diffusible thin strip sheet (130), or the raw material selected for the third layer (133) and the innermost layer of the multilayer body (120), or The three layers (1 2 3) use the same raw materials. All three layers are applied to the seal or laminated seal with each other or with a suitable adhesive for gluing or extrusion with an organic additive.

From the second and fifth figures, it can be seen that the diffusible thin strip sheet (130) is placed under the multilayer body (120). The second figure shows that the uppermost layer or the third layer (1 3 3) of the diffusible thin strip (130) is interconnected and sealed with the innermost layer or the third layer of the multilayer body (120). Fifth figure: The uppermost layer or second layer (1 2 3) of the thin sheet (130) can be mutually sealed with the innermost layer or the second layer (122) of the multilayer body (120). Sealing is by using appropriate adhesive, or extruded organic additives, or heat sealing, or RF, or ultrasonic, or similar fusion methods. At this time, the periphery of the envelope bag is sealed by heat welding, or RF, or ultrasonic, or a similar welding method to produce a sealing end edge (150), which is welded to seal the food bag.

The seventh and eighth figures are side views of the sealed terminal (150). The bottommost layer or the first layer (1 3 1) of the diffusible thin strip sheet and the innermost layer or the second layer (1 2 3) of the multilayer body (1 2 0) are welded together by heating. The seventh figure clearly shows the diffusible The thin strip (1 3 0) is covered by a multilayer body (1 2 0). The eighth plan shows that the diffusible thin strips are covered with the innermost layer or the second layer of the multilayer body (120) and are welded to each other. This heat seal uses two different raw materials. The seventh figure is the bottom or first layer (1 3 1) of the thin thin sheet (1 3 0) and the innermost or first layer of the multilayer body (1 2 0). Three floors (1 2 3). The eighth figure is a thin diffusible thin sheet (1 3 0) and

Page 11 200304888 V. Description of the invention (8) The innermost layer or the second layer of the multilayer body (1 2 0). These two figures are only a brief description of the heat-melt condition of the bottommost layer or the first layer (1 3 1) of the diffusible thin strip (1 3 0) and the innermost layer of the main body. At first glance, the innermost layers of the multilayer body (120) in Figures 7 and 8 are separated. In fact, the innermost layers of the two multilayer bodies (120) are connected and sealed.

The sealing method is stronger with appropriate adhesive or extrusion with organic additives than with heat welding, or RF, or ultrasonic, or similar welding methods. Adopting the same heat-welding material to adhere to each other will result in a stronger bonding layer between the two layers. A weak connection layer is generated during heating and sealing. The heating range of two different raw materials will generate a weak point. This weak point is where the vapor is emitted. As for how the vapor is emitted, we will elaborate on it later. The bag is not limited to a center-sealed stretchable envelope bag. The present invention is also applicable to other bags, and the fourth and fifth figures are three-sided sealed stretchable envelope bags. The invention is not limited to stretch wrap bags. It is also suitable for triangular angled cuff bags (picture 9) and stand-up cuff bags (picture 10) and even for top-sealed food bag containers (picture 11).

The top sealed bag container (200) can be seen in Figure 11. It can be seen in the figure that the seal of the container is a frame edge of the surrounding wall, and the periphery of the frame edge is protruded to allow the surface layer to be more easily sealed. As mentioned above, the innermost layer of the multilayer body (120) and the topmost layer of the diffusable thin strip sheet are welded and sealed. The sealing method is to use glue Adhesive, or organic additive extrusion or heat sealing, or RF, or ultrasonic, or similar welding method. The welding process uses the same raw material. Multilayer master

Page 12 200304888 V. Description of the invention (9) The third layer (1 2 3) of the body (1 2 0) and the frame edge of the container or the third layer 1 2 3 of the multilayer body (120). The welding method is heat sealing, or RF, or ultrasonic, or other similar welding methods. The raw material is the same as that of the container or the sealed area of the container. The first layer (1 3 1) of the diffusible thin strip sheet (130) is welded and sealed with the frame edge of the container, and the raw material used is the same as that of the third layer (123). Since the contact points of the layers are different from each other, a weak point is generated during welding. The joint between the first layer of the diffusible thin strip sheet (130) and the edge of the container frame will form a weak point when heat-sealed. The raw material of the container is the same as that of the third layer (1 2 3) of the main body. The role of the diffusible thin strips of the main body will be further explained. When the bag is heated in a microwave oven, the water in the food quickly turns into water vapor. Once the temperature in the bag rises during the heating process, water vapor will expand and cause the air pressure in the bag to increase. When the air pressure in the bag has not increased significantly, those swollen water vapor will break through the specific boundary weakness (1 40) of the bag person and form an outlet (1 4 1) (refer to the fourth figure) so that those Water vapour will not radiate the food backwards. Specific boundaries Weak points (140) exist to allow the bag to burst to avoid the increase in air pressure inside the bag and to prevent food from saving money. The weak point formed when two different materials are connected to each other during the sealing process is to allow the water vapor in the bag to easily break through the weak point. But the other connection port in the second layer, which has the same raw material and is formed when it is heated and sealed, is a strong connection port, which is sufficient to withstand the pressure of water vapor and will not burst. This is the difference between it and the weakness . The invention is not limited to only one sheet of diffusible thin strips (130)

Page 13 200304888 V. Description of the Invention (ίο) Bag. The bag can hold more than one thin sheet of diffusible strips (130). Figure 12 illustrates an example of a bag with more than one sheet of diffusible thin strips (130). The figure shows a sample of a centrally sealed pouch with two diffusable thin strips. The shape and amplitude of the diffusible thin strips (130) can be large or small. The invention described by the example above clearly expresses the function it should have. Similarly, there are no restrictions on the placement position of the diffusible thin strips. The primary purpose of the present invention is to provide a weak point at certain boundaries of the seal. Modifications can be made within the scope of the present invention.

Page 14 200304888 Brief description of the drawings [Simplified illustration of the drawings] The first diagram is a top view of the present invention, and the part shown is a cross-sectional view of a middle-sealed stretchable bag, showing a thin thin sheet of the bag that can be diffused ° The second figure is a cross-sectional view of the present invention, showing each layer of film attached to the main body and the diffusible thin sheet. The third figure is a detailed perspective view of the present invention, showing the expandable thin strips and the tearable fragile zone in the bag. The fourth figure is a specific perspective view of the present invention, showing the expandable thin strips and bursting zones in the bag. The fifth figure is a specific perspective view of the present invention, which illustrates the three-side seal formed by the sealing sheet, and also illustrates that the third layer is not included. The sixth figure is a specific perspective view of the present invention, which illustrates the three-sided porosity of the present invention. The seventh figure is a sectional view of the edge of the sealed bag of the present invention, in which the broken line in the bag indicates the fragile zone. The eighth figure is a sectional view of the edge of the sealed bag of the present invention, which illustrates the fragile zone without the third layer. The ninth figure is a specific perspective view of the thin sheet with diffusible thin strips of the present invention. The tenth figure is an erected perspective view of the present invention. The eleventh figure is a top view of the sealed container of the present invention. The twelfth figure is a specific perspective view of the present invention with more than one sheet of diffusible thin strips attached.

Page 15 200304888 Schematic illustration of components 1 1 2 Symbol description 0 0 2 0 2 1 2 2 2 3 3 0 3 1 3 2 3 3 4 0 4 1 5 0 6 0 0 0 Multi-layer body, second layer, multi-layer body, third layer, multi-layer diffusible thin sheet, multi-layer diffusible thin sheet, first layer, multi-layer diffusable thin sheet, second layer, multi-layer diffusable thin sheet, third layer, specific boundary, weak point, weak point, exit frame Box edge top sealed bag container❿

Page 16

Claims (1)

200304888 VI. Scope of patent application 1. A bag for containing and sealing food, the bag is made of heat-resistant raw materials, which includes: a multi-layer diffusible thin strip sheet, wherein the sheet includes a specific weak point boundary; a piece A multi-layer body is covered and sealed on the multi-layer diffusable thin strip sheet; and a multi-layer body is cushioned on the multi-layer diffusable thin strip sheet and is connected and sealed together with the multi-layer body covered on the multi-layer spreadable thin sheet; wherein, When the bag is heated, the water in the food will be converted into water vapor, thereby increasing the air pressure inside the bag. The air pressure will then break through the weakness of a specific boundary and create an outlet to allow water vapor to be emitted from the outlet. 2. The bag according to item 1 of the scope of patent application, wherein the bag is suitable for microwave heating. 3. The bag as described in item 1 of the scope of patent application, wherein the multi-layer diffused thin strip sheet and the main body must have at least two layers. 4. The bag according to item 1 of the scope of patent application, wherein the main body and the diffusible thin strip sheet are bonded to each other, that is, the innermost layer of the multilayer main body and the uppermost layer of the multi-layer diffuseable thin strip sheet. The raw materials are the same. The multi-layer body is covered with the multi-layer diffusible thin strip sheet, so that the innermost layer of the multi-layer body and the outermost layer of the multi-layer diffused thin sheet are in contact with each other to be adhesively sealed. 5. The bag according to item 1 of the scope of patent application, wherein the multilayer body disposed under the multilayer diffuser thin sheet forms corner-to-corner adhesion, and the multilayer body covered with the multilayer diffuser thin sheet is covered with the multilayer body. Same as above 200304888 VI. Scope of patent application It forms corner-to-corner adhesion. 6. The bag according to item 1 of the scope of patent application, wherein the bottommost layer of the multi-layer diffused thin strip sheet and the innermost layer of the multi-layered body are in contact with each other and placed on the diffused thin strip sheet. The materials used for the innermost layer of the multilayer body below are different. 7. The bag as described in item 1 of the scope of the patent application, wherein the manufacturing materials used in the bag must be suitable for raw materials that can be heated under the wave, which is polymerized in raw materials, and raw materials are used to produce them. As far as the esters are concerned, 7 things are born, Fan Qili and special alcohols, please gather together, choose 8 materials that should be Γ- ί, »UJ · Nizhan or please, materials such as raw materials, and 9 Amersham should be among them. The rebirth of the child's bag is related to the three items in the bag. Bag-type bag-type shrink-type stand-up seal or Yangzi medium bag is the corner to support the shape of the corner should be sticky, the glue in the bag is the basis, the contents of the bag of the surface layer, the main body of the first layer of the multi-layer For this special film, please thin the application note, such as thin, loose, and expandable. TX can be multi-layered or glued. The suitable use is adhesive seal or glue. The compaction is added by the extruder, and the glue is added. It is the layer of the main body of the bag, or one of the adhesive items of the multi-plastics. In order to use Fan Zhicai Li and the special film method, ask thin square application strips to stick like fine glue, loose, 1 expand and seal, ^ dense layers can be placed on top of each other. The Chinese-French connection and the thin-like description of the lysate are as thin as a bag, and the scattered wave 1 sound reinforcement can be beyond the surrounding layer or Fando, which is beneficial to the RF and the body. Seal such as layer dense, hot 2 should add 1- ^ or below, in Page 18 200304888 VI. Scope of patent application The sealing method of each corner of the multilayer body is heat sealing, or RF, or ultrasonic, or similar welding method. 1 3. The bag as described in item 1 of the scope of patent application, wherein the diffusible thin strip sheet can be placed on any part of the formable bag, but its part must ensure that a specific material is formed when heat-sealed with different raw materials. Weakness. 14. A bag as a container of food, the raw materials used must be suitable for heating purposes, including: a multilayer diffusible thin strip sheet; and a multilayer body, the multilayer body is placed on the multilayer diffusive thin strip sheet Sealed; the bag placed below and the multi-layer diffusible thin strip sheet and the multi-layer body are sealed with each other. When the bag becomes hot during the heating method, the water in the food will become water vapor, and the air pressure inside the bag will also be sealed. With the increase, in this case, the air pressure breaks through the weak point of a certain boundary to create an outlet for water vapor to be emitted from the outlet. 15. The bag referred to in item 14 of the scope of patent application refers to a bag that can be heated by microwaves. The heating method is microwave heating. 16. The bag according to item 14 of the scope of patent application, wherein both the multi-layer diffusible thin strip sheet and the multi-layer body must have at least two layers. 17. The bag according to item 14 of the scope of the patent application, wherein the innermost layer of the multilayer body and the uppermost layer of the multilayer diffusible thin sheet underneath are sealed from each other with the raw material used for the multilayer diffusable thin sheet upper most Page 19 200304888 6. The scope of patent application is the same. 18. The bag according to item 14 of the scope of patent application, wherein the multi-layer body and the multi-layer diffusible thin strip sheet placed underneath and the multi-layer diffusible thin strip sheet placed thereon are sealed diagonally. 19. The bag according to item 14 of the scope of patent application, wherein the bottommost layer of the multi-layer diffusible thin strip sheet and the corner of the bag sealing area are sealed with each other, and the raw materials used are sealed with the bag. The raw materials of the zones are different. 20. The bag according to item 14 of the scope of patent application, wherein the bag is made of a material suitable for functioning in a microwave heating process. 2 1. The bag according to item 20 of the scope of patent application, wherein the raw material is selected from the group consisting of polyethanol and its derivatives, polyester and its derivatives, polypropylene and its derivatives, or nylon (polyglycerine) And its derivatives. 2 2. The bag according to item 14 of the scope of patent application, wherein the multi-layer diffusible thin strip sheet and the layer included in the multi-layer body are sealed or glued by gluing. Viscose, or organic additive extrusion. 23. The bag according to item 14 of the scope of patent application, wherein the sealing process of the multilayer diffusible thin strip sheet and the multilayer body placed on it is to use an adhesive type to seal each other, and an adhesive method is to use Suitable adhesives' or organic additives are extruded, or heat sealed, or RF, or ultrasonic, or similar welding methods. 24. The bag according to item 14 of the scope of patent application, wherein: Page 20 200304888 VI. Scope of patent application The sealing method of the bag and the multi-layer diffusible thin strip sheet and the multi-layer body placed thereon is heat sealing, or RF, or ultrasonic, or similar welding method. 25. The bag as described in Item 14 of the scope of patent application, wherein the diffusible thin strip sheet can be placed at any part that can form a bag, but its part must ensure that a different material is formed when heat-sealed with different raw materials. Specific weaknesses. Page 21