A STORAGE BAG FOR THERMAL INSULATION AND THE METHOD OF ITS PRODUCTION.

Abstract

The invention relates to a storage bag designed to maintain the temperature of food products for a specific period of time, and to the method of manufacturing said bag. This multi-layered bag with a resealable closure ensures that frozen products, or products requiring hot or cold storage, can be kept fresh for a certain period of time, especially during the hot summer months.

Description

1 TARIFF A storage bag and a sign for use in thermal preservation. THE SUBJECT IS THE PRODUCTION METHOD OF THE BAG. Technical Field to Which the Invention Relates The invention is a storage bag for use in heat preservation and the aforementioned 5 This relates to the bag's manufacturing method. It is a multi-layered bag with a locking closure at the opening. The bag is especially suitable for frozen products or during the summer months when air temperatures are high. products that need to be kept cold or cooked and need to stay hot It ensures that products can be stored for a certain period of time without spoiling. State of the Art 10 Metals and glass that protect food from external influences and facilitate its marketing and consumption. Containers, cases, or wrappers made from special materials such as paper and plastic are used as food packaging. It is defined that quality and safe food conditions are maintained not only during the production phase, This must also be ensured during the packaging and storage stages, as storage and transportation Packaging the final product in accordance with the conditions ensures that its quality characteristics are preserved and 15 It extends the shelf life of frozen products, especially in hot weather conditions [1]. Storing and transporting these products is a challenging process because they have specific characteristics. It must be stored within the specified temperature range. Otherwise, the products will thaw. It can spoil, food safety is compromised, and product quality decreases. Furthermore, When it is desired to keep food within a specific temperature range, long-distance transportation is also necessary. Temperature loss occurs during transportation and storage. This situation leads to bacteria. It creates an ideal environment for reproduction. When the temperature range is compromised, Microorganisms multiply rapidly, leading to a risk of food poisoning. This is the reason why the heat used in the current technology is not available. Insulated packaging keeps food at a certain temperature for a specific period of time. It is manufactured from special materials designed to increase safety and quality. These packages maintain the temperature of both hot and cold foods. This facilitates transportation and storage. Among these products... In aluminum foil-coated packaging, aluminum foil has heat-reflecting properties. Thanks to this, it preserves the temperature of both hot and cold foods. Commonly used for both indoor and outdoor applications. Aluminum is used in the layers, with an insulating material in between. 2 However, these packages are not sufficient for long-term heat retention. They are usually only sufficient for... They can keep food hot or cold for 1-2 hours. More They are inadequate for situations requiring long-term temperature maintenance. Furthermore, Aluminum foil-coated packaging is resistant to physical impacts and tears. It is not. It can be easily damaged or punctured, which makes it poor thermal insulation. 5 This negatively affects his / her performance. In addition, it should be noted that... Using aluminum foil in packaging requires high costs and is a long-term process. and options such as polyurethane or vacuum-sealed packaging that provide better insulation. Its insulation performance is lower compared to that. In the current state of the art, polystyrene (foam) packaging provides thermal insulation for food products. to ensure and facilitate their protection during transport, widely used Polystyrene, expanded polystyrene (EPS), or extruded polystyrene are used. It is available in two different forms (XPS) and is generally lightweight, economical and insulating. Polystyrene packaging is known for its temperature-retaining properties. It can be used for both hot and cold foods by preserving heat. Slowing down heat transfer 15 It has a high capacity, therefore it can maintain the temperature of food for a certain period of time. It can retain its properties. However, the styrene monomer contained in polystyrene, especially at high levels, can be problematic. When these chemicals come into contact with food at certain temperatures, they can leach into the food. Prolonged exposure to styrene causes health problems. Furthermore, polystyrene... Although the packaging is resistant to physical impacts, it can easily crack or break. It is brittle. This material becomes even more fragile, especially in cold weather conditions. This can lead to food spills or damage during transport. This is the reason. In current technology, silica gel is a material generally known for its moisture-absorbing properties. However, in some special forms and technologies, it is also used in heat retention. Silica gel is used, especially in combination with certain packaging solutions, particularly in areas with high temperature and humidity. It is used to optimize control in the heat preservation of food. Silica gel-based packaging developed for use generally provides thermal insulation as well as other purposes. It also provides moisture control. Silica gel, especially in aerogel form, is used in other packaging materials. It is more expensive than other materials. Therefore, this type of packaging is usually 30% of the cost. It is preferred for high-quality foods where it is less important. Also, silica gel, Although commonly used for moisture control, polystyrene (foam) is also used for heat insulation. 3 or because it is not as common as aluminum-coated packaging, its areas of use It is limited to certain products. Patent number US10457440B2, which falls under the prior art, primarily the safety and quality of goods, foodstuffs, samples and such materials to ensure a predetermined temperature for predetermined periods of time 5 in the transport or storage of similar substances that must be kept within certain ranges This is related to the field of thermal linings used. The document in question describes... Composite or multi-layered insulated bags, with different closure and handle structures as well. It may include inner bag-like structures, items, or products that are insulated. After being placed in bags, they can be heat-sealed at the open top ends. The other 10 In applications, the tops of the inner bags are left open after items or products are placed inside. mechanical zipper-like closures or double-sided tape to seal the ends It can be used. The outer layer may contain metallic polyethylene terephthalate (METPET). It is stated that the innermost layer may contain polypropylene. Furthermore, a The intermediate insulation layer should preferably be made of material known to have low thermal transfer (15). They are made from materials. These types of materials, after deformation, low-reshaping foams, including those exhibiting memory properties. It contains high-density, foldable or compressible open-cell polyurethane foams. Another patent, US2018319569A1, falls under the prior art. The application relates to insulated bags and cases. The outer layer of the bag here is 20 It is made of polyethylene, polypropylene, or polyvinyl chloride. The inner and outer layers, thermoplastics such as metallic polyethylene terephthalate (METPET), but not limited to these. Polymers include polyethylene and various reflective or metallic foils. Insulation. The outer layer is bonded to the inner and outer layers through lamination. Additionally, the packaging... The use of a zipper (locking mechanism) as a closure element is explained. 25 The limitations and inadequacies of current technological solutions necessitate the development of thermal insulation. Packaging can easily deform, and consequently, during transportation... Spillage or damage of food, especially with silica gel packaging, is a risk. The high cost and the risk of chemical leaching into food from polystyrene packaging, Due to reasons such as the short duration of thermal insulation, 30 provides thermal insulation. An improvement to the bags has been deemed necessary. 4 Brief Description and Objectives of the Invention The invention describes a multi-layered storage bag for use in heat preservation and... The production method of the bag in question is explained. It has a lock at the opening. The bag is especially suitable for frozen products or during the summer months when air temperatures are high. Products that need to be kept cold or hot can remain unspoiled for a certain period of time. 5 It ensures that it is hidden. The purpose of the invention is to maintain the temperature of food products for a specific period of time. The invention provides thermal insulation if the product to be placed inside the bag is cold. It stays cold for a certain period of time, and if the product placed inside is hot, it has insulation properties. Thanks to this, it stays warm for a certain period of time. The bag in question is made up of 5 layers. (from outside to inside, respectively: BOPP (Oriented Polypropylene), METPET (metallized polyester), PE (polyethylene), mattress and milky white polyethylene) and a closure at the mouth of the bag. Thanks to its mechanism (zipper), thermal insulation is kept at the highest level. One aim of the invention is to create a heat-insulated bag with a high carrying capacity. The invention involves attaching 15 to the mouth of the bag by hot sealing. Thanks to its polyethylene handle or hand-held loop, this bag can hold between 5 and 20... It has a carrying capacity of up to kg. Explanation of the Figures Figure 1. Schematic view of the storage bag that is the subject of the invention. 20 Figure 2. Schematic representation of the storage bag, the subject of the invention, in another application. It is the appearance. Explanation of References in Figures 1. Outer layer 25 2. First layer 3. Second layer 4. Third layer 5. Inner layer 6. Sap 30 7. Handheld section Detailed Description of the Invention The invention is a storage bag for maintaining the temperature of food products for a specific period of time. This relates to the production method of the bag in question. It is a multi-layered, open-mouthed bag. a bag with a lock mechanism, especially during the summer months when air temperatures are high Frozen products or products that need to be kept cold can remain fresh for a certain period of 5 days without spoiling. It allows it to be kept hidden for a while. The bag that is the subject of the invention is made of BOPP (Oriented Polypropylene), from the outside to the inside. at least one outer layer (1), at least one primary layer made of METPET (metallized polyester) layer (2), at least one second layer (3) made of PE (polyethylene), made of mattress at least one third layer (4), at least one inner layer made of milk white polyethylene (5), 10 At least one handle (6) or handgrip part to provide the user with ease of carrying. (7) includes. In a preferred application of the invention, the bag in question has a mouth part on the bag. It includes a handle (6) made of polyethylene which is welded by hot sealing. The bag in question is also designed to cut off its contact with the outside air, with the bag being 15 It contains at least one zipper (locking mechanism) at its opening. Here, the outer layer made of BOPP (1) is 20 microns thick, made of METPET. (metallized polyester) first layer (2), 12 microns, made of PE (polyethylene) The second layer (3) is 30 microns, 1.5 mm, made of mattress material, and the third layer (4) is milk white. The inner layer made of polyethylene (5) is 50 microns thick. 20 In the bag that is the subject of the invention, the outer layer (1), the first layer (2) and the second layer (3) are between There is lamination. However, between the third layer (4) and the outer layer (5). No lamination process is performed; these layers act as a barrier within the bag. He sees. The manufacturing method of the insulated storage bag described in the invention is; 25 i. The coil of BOPP (Oriented Polypropylene) which will form the outer layer (1). for the printing process, it is attached to the printing machine and reverse printing is performed. conversion to printed coil, 6 ii. The first layer is applied by inserting the printed BOPP coil into the lamination machine. (2) METPET (metallized Polyester) will form the glue and lamination using a hardening method, iii. Re-laminating the already laminated BOPP+METPET coil. PE (Polyethylene) 5 which will form the second layer (3) by being attached to the machine lamination using glue and hardener method, iv. The printed BOPP+METPET+PE bobbin with completed lamination. It must be placed in a curing unit to dry and left there for at least one day. left to dry, v. Attaching the coil to the cutting machine, the cutting machine's other coil 10 Installing mat bobbins and milky white PE bobbins on the warp posts, vi. As the machine progresses, the coil folds into a bag shape and the edge It includes the steps for applying the adhesives using a thermal method. The invention concerns a storage bag manufacturing method that is preferred in a particular application. vii. The zipper is attached to the top of the bag using the heat sealing method. 15 pasting, viii. cutting the bag to the desired size, ix. Heat sealing (by printing) the opening of the cut bag. The steps for attaching the plastic handle (6) or the handgrip part (7) are also shown below. It includes. 20 In the method described in the invention, 3 m2 is used for the lamination process in steps (ii) and (iii). gram glue is used. Also, in step (vi) the coils are put into the cutting machine. The installation process refers to the use of 3 different coils. These coils are for the machine. When it started working, the top floor had printed BOPP+METPET+PE laminated layers in that order. The coil, mattress, and milky white PE will start to walk. 25 Industrial Applicability of the Invention The invention is a multilayer storage bag and casing for use in heat retention. The topic concerns the bag's production method and is applicable to industrial settings. 7 The invention is not limited to the above descriptions, and a person skilled in the field can easily make further discoveries. It can demonstrate different applications of the invention. These are the claims and demands of the invention. It should be considered within the scope of protection. REFERENCES 5 [1] Şahin, OI, Bayizit, AA, 2008. Applications of nanocomposite films in the food industry. 10th Turkish Food Congress, May 21-23, Erzurum. 15

Claims

8 REQUESTS 1. It is a thermally insulated storage bag made of BOPP (Biaxially Oriented Plastic). At least one outer layer (1) made of polypropylene, METPET (metallized polyester) The product must have at least one first layer (2), and at least one second layer made of PE (polyethylene). layer (3), at least one third layer (4) made of mattress, milk white polyethylene 5 The product must have at least one inner layer (5), to provide the user with ease of transport, at least one handle (6) or a hand loop to make the bag easy to carry. (7) is included.

2. A storage bag according to claim 1, its characteristic feature is that the outer layers are laminated together. It contains layer (1), first layer (2) and second layer (3). 10 3. A storage bag according to claim 1 or 2, characterized by having a mouth opening on the bag. It contains a handle (6) made of polyethylene which is welded by hot sealing.

4. A storage bag as described in any of claims 1 to 3, the characteristic of which is; the bag's To prevent contact with the outside air, the bag must have at least one zipper at the opening. It includes a (locking mechanism). 15 5. A storage bag as in any of items 1 to 4, with the characteristic of; 20 outer layer made of 12 micron thick BOPP (1), 12 micron thick First layer (2) made of METPET (metallized polyester), 1.5 mm second layer made of PE (polyethylene) with a thickness of 1.5 microns (3), third layer made of mattress (4) and 50 micron thick milk white 20 It contains an inner layer (5) made of polyethylene.

6. The manufacturing method of a storage bag as in any of claims 1 to 5. and its characteristic is; i. The outer layer (1) will be formed by BOPP (Biaxially Oriented For the (polypropylene) coil printing process, it must be inserted into the printing press and reversed 25 converting it into a printed reel by printing, ii. The first layer is applied by inserting the printed BOPP coil into the lamination machine. (2) METPET (metallized Polyester) will form the glue and lamination using a hardening method, iii. The laminated BOPP+METPET coil is then processed again for 30 minutes. It will be attached to the lamination machine to form the second layer (3) Lamination of PE (Polyethylene) using glue and hardener. 9 iv. Laminated printed BOPP+METPET+PE The coil must be placed in a curing unit to dry and for at least 1 day. left there to dry, v. attaching the coil to the cutting machine, the cutting machine's other coils Installing the mat bobbins and milky white PE bobbins on the warp posts, 5 vi. As the machine progresses, the coil folds into a bag shape and the edge It involves the steps of applying the adhesives using a thermal method.

7. The storage bag production method is as in Claim 6, and its characteristic is that the top of the bag The step of attaching the lock (zipper) to this part using the hot sealing method is 10. It includes.

8. The storage bag manufacturing method is as in Claim 6 or 7; its characteristic is that the bag It involves cutting the fabric to the desired size.

9. The storage bag manufacturing method is discontinued as in any of claims 6 to 8. The plastic handle (6) 15 is attached to the mouth of the bag by heat sealing (by printing). or includes the step of attaching the hand-held part (7).

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