food packaging wiki

Admin · 1 food packaging wiki Thu Jan 28, 2021 4:26 am

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Food packaging bag- <a href="https://www.gdhuihuapackaging.com/" target="_blank">Huihua</a> Food packaging bag is a kind of packaging design, in order to facilitate the preservation and storage of food in life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and used to hold and protect food. Food packaging bags refer to film containers that are directly in contact with food and are used to hold and protect food. Food packaging bags should be produced using food-grade plastic films, generally two-layer or more composite packaging bags. The information that should be marked on the food packaging bag should meet the requirements of the GB21660-2008 standard. Food packaging bags can be divided into general food packaging bags, vacuum food packaging bags, inflatable food packaging bags, poached food packaging bags, retort food packaging bags and functional food packaging bags according to their application scope. Production Process Planning←→Design←→Printing←→Compound←→Aging←→Slitting←→Bagging←→Quality Inspection←→Finished Products Flexible packaging printing is actually a very simple definition of a technology in the packaging industry. Classification of folding printingGravure printing and flexographic printing Gravure printing Definition: A direct printing method, which directly imprints the ink contained in the gravure pit onto the substrate. Flexographic printing Definition: A printing method that uses an elastic relief printing plate to transfer ink to the substrate. Print design(1) Small text and lines should be designed as a single package to avoid inaccurate multi-color overprinting. The width of the thin line cannot be less than 0.1mm, otherwise it is easy to be lost or unclear strokes in printing. The net height of Chinese fonts is not less than 1.8mm, and that of English fonts is not less than 1.5mm. (2) Special attention should be paid to the inverted text when designing. If the text is small, especially when the strokes are thin, use a single color. You should also pay attention to the choice of fonts. Round-headed, bold, and equal-line fonts are the better choices, while fonts that are too different in strokes such as Song Ti, Old Song Ti (horizontal thin and vertical thick) should be used with caution. When using this type of font, pay attention to the clear height of Chinese fonts not less than 2.5mm, and that of English fonts not less than 2mm. Physical protectionThe food stored in the packaging bag should avoid squeezing, impact, vibration, temperature difference and other phenomena. Shell protectionThe shell can separate food from oxygen, water vapor, stains, etc., and leakage prevention is also a necessary factor in packaging design. Some packages include desiccant or deoxidizer to extend shelf life. Vacuum packaging or removing the air from the packaging bag is also the main food packaging method. Keeping food clean, fresh and safe during the shelf life is the primary function of the packaging bag. Same packageStuffing small objects of the same type into one package is a good way to save volume. Powder and granular objects need to be encapsulated. send MessagePackaging and labels tell people how to use, transport, recycle, or dispose of packaging or food. MarketingMarketing often uses box labels to encourage potential buyers to buy goods. Packaging design has become a pivotal and constantly changing phenomenon for decades. Marketing communications and graphic design are applied to the outer box and (for some reasons) the highlights of the sales presentation. SafetyPackaging can play an important role in reducing transportation safety risks. Packaging bags can also prevent food from being included in other commodities. Food packaging can also reduce the possibility of food being stolen. Some food packages are strong and have anti-counterfeiting marks, which protect the interests of businesses from loss. The packaging bag can have laser marking, special color, SMS authentication and other labels. In addition, in order to prevent theft, the retailer puts an electronic monitoring label on the food packaging bag, and waits for the consumer to get it at the outlet of the store for demagnetization. convenientThe packaging may be easy to add, load and unload, stack, display, sell, open, repack, use and reuse. Partial controlA single package helps to accurately control the overall situation. For example, the amount of stock can be known when salt is packed into the package. It also makes it easy to calculate sales, such as the delivery and recycling of milk bottles by dairy companies instead of letting consumers fill them themselves. The QS mark is a food quality and safety market access mark, that is, a food production license mark. The QS mark is a quality mark. The use of the QS mark on the food produced by the enterprise indicates that the enterprise promises that its product has passed the inspection and meets the basic requirements of food quality and safety. The QS mark must be printed (posted) on the package or label of the food that is subject to the food quality and safety market standard system before leaving the factory. Without the QS mark, it shall not be sold at the factory. At present, my country has implemented three batches of 28 types of foods under the food quality and safety market access system. The development and application of food packaging bags in my country has just started. Shantou City, Guangdong Province is my country's largest production base of flexible plastic packaging. The quality of food packaging bags in the flexible packaging industry, especially the hygienic quality, is directly related to the safety of the packaged food. Therefore, it is necessary to ensure that the raw materials and additives used meet the quality requirements of the management system. It is necessary to improve the industry and national standards of packaging film bags and strictly implement them, strengthen inspection and supervision of food packaging, prevent unqualified food packaging from entering the market, and strengthen management to ensure the healthy development of the flexible packaging industry. The inspection items of food packaging single film bags are mainly divided into the following categories: The appearance shall not have defects such as bubbles, perforations, water lines, violent tendons, poor plasticization, fish-eye stiffness, etc., which are harmful to use. The specification, width, length, and thickness deviation should be within the specified range. The physical and mechanical properties include tensile strength and elongation at break, which reflect the ability of the product to be stretched during use. If this item is unqualified, the food packaging bag is prone to cracking and damage during use. Folding hygiene performanceIncluding evaporation residue (acetic acid, ethanol, n-hexane), potassium permanganate consumption, heavy metals, decolorization test. Evaporation residue reflects the possibility that residues and heavy metals will precipitate when food packaging bags meet vinegar, wine, oil and other liquids during use. Residues and heavy metals will have adverse effects on human health. In addition, residues will directly affect the color and aroma of food. Food quality such as, flavor. Degradability According to different degradation types of products, it can be divided into photodegradable, biodegradable, and environmentally degradable. Degradation performance reflects the ability of the product to be accepted by the environment after use and disposal. If the degradation performance is good, the bag will break, differentiate and degrade by itself under the combined action of light and microorganisms, and eventually become debris, which is accepted by the natural environment; If the degradability is not good, it will not be accepted by the environment, thus forming "white pollution". The inspection items of food packaging composite film bags are mainly divided into the following categories: The appearance should be smooth, free from scratches, burns, bubbles, oil breaks and wrinkles, and the heat seal should be smooth and free of voids. The film must not have cracks, pores and separation of the composite layer. No impurities, foreign matter, oil stains and other pollution. The bagged soaking liquid must not have peculiar smell, peculiar smell, turbidity and discoloration. Folding physical and mechanical propertiesIncluding tensile strength and elongation at break, it reflects the ability of the product to withstand stretching during use. If this item is unqualified, the food packaging bag is prone to cracking and damage during use. In addition, it also includes gas barrier properties such as gas permeability; oil resistance, heat resistance, cold resistance, and medium resistance; the sealing and peeling force of the bag, the pressure resistance and drop resistance of the bag, and other indicators. These indicators reflect the performance of food packaging bags. The reliability of the protection of the inner packaging. Hygienic performance It needs to be pointed out that in addition to the above-mentioned corresponding hygiene standards for food packaging materials, my country has two laws and regulations: one is the "Food Hygiene Law of the People's Republic of China", and the other is the "Management Measures for Food Plastic Products and Raw Materials." The Food Sanitation Law has more content than management measures, and it is a comprehensive law, while the latter is professional and only refers to plastic products and raw materials. The management scope is limited to all kinds of plastic utensils, containers, production pipelines, and transportation that contact food. Packaging materials made of tapes and plastics and the synthetic resins and additives used. The so-called plastic food utensils refer to plastic products such as spoons, spoons, and chopsticks that are in contact with food for a short time but need to be used repeatedly. The so-called window refers to plastic products such as barrels, bottles, basins, and cups that contain food. The so-called production pipeline refers to the pipeline through which the materials in the food processing process, especially liquid food or beverages flow, should also include storage and irrigation. The so-called conveyor belt refers to the carrier that transports the food raw materials to the processing equipment, and the packaging material refers to the single-piece and composite bottles, barrels, trays, roll films and bags. Among them, roll film packaging cling film, cover film and manufacturing Bag film. All manufacturers of flexible food packaging and composite packaging materials should strictly implement this management method. The processing of plastic film bags must go through the process of heating, and plastics have the problems of cracking, oxidation, degradation and deterioration when heated. Therefore, when processing plastic films or bags with resin, antioxidants, Auxiliaries such as heat stabilizers. Some packaging film bags also require antistatic, anti-condensation, and high slip due to the needs of packaging technology and machinery or contents, so additives such as antistatic agents, antifogging agents, lubricants, and opening agents are also added. All these additives must be tested and tested in GB15139 "Food Safety Toxicology Evaluation Procedures" to prove that they are non-toxic before they can be used, but there is also a limit on the amount of addition. Therefore, in the product, these low-molecular-weight substances that can be extracted, that is, evaporation residue, or things that can be oxidized and deteriorated, that is, the consumption of potassium permanganate, cannot exceed the prescribed amount, and if it exceeds it, it cannot be used. . Therefore, there must be corresponding sanitation standards for molded products. The purpose is to prevent misuse and abuse of additives, and to better ensure that materials directly packaged and in contact with food have a high degree of sanitation and safety.

food packaging wiki

1 food packaging wiki Thu Jan 28, 2021 4:26 am

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