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First, waterproof class 1, dehydration packaging paper This is called PS packaging paper, choose to only through the semi-permeable membrane for the surface material, the inside is placed high osmotic pressure material and polymer water absorbent. The wrapper does not damage the cells of the food tissue, but also inhibits the activity of the enzyme, prevents the decomposition of the protein, reduces the proliferation of microorganisms, and achieves the effect of maintaining the freshness of the food, concentrating the umami component, and improving the toughness.
2. The biggest feature of the water absorbing functional paper water absorbing functional paper is its strong water absorption ability, which can maintain the water absorption capacity of the material 10 times of its own weight, and it is safe and harmless. There is a significant difference between the water absorption capacity and the water retention capacity of the absorbent functional paper and the non-woven fabric, and the absorbent functional paper is obviously excellent. This is because non-woven fabrics can only retain moisture in the pores between the fibers of the raw material, while the water-absorbing functional paper not only has the above capabilities, but also the fibers themselves can absorb water. When the absorbent paper absorbs water, it becomes very soft. Due to the above properties, the water absorbing functional paper can be used as a film (sheet) for absorbing condensation such as ham and sausage, a film (sheet) for absorbing fresh food drip, and a thin film for cosmetics and sanitary materials.
3, acid-free waterproof archival paper by the Hunan Changde Cigarette Factory Jin Furong (Special) Paper Co., Ltd. independent research and development of new waterproof packaging paper and cardboard (acid-free waterproof archival paper), successfully filled the domestic blank. The company has started projects since 1996 and has invested a total of 150,000 yuan to develop new waterproof packaging paper. According to relevant experts, the scope of application of new waterproof packaging paper and board is very wide.
4, screen wet cardboard Libery / Minnesota, USA Paper Co., Ltd. developed M-Guard screen wet cardboard, like corrugated cardboard, also similar to commonly used inner liner, can be printed, recycled and then beaten the system. The board's screen wet performance has a visual effect. This screen wet performance is due to the effect of internal chemical splicing performance in the process of making paperboard, without any conversion, it can save time. The paperboard achieves good humectability through its inherent absorption.
5, water resistant paper Water resistant paper has good water resistance and air permeability, because it does not have water repellency, so the penetration rate is higher than other materials, its surface strength and interlayer strength is high, there is antibacterial, it can absorb nitrogen, etc. . These characteristics are not obtained by adding resins and chemicals, but rely on the raw material of the paddles and are therefore safe and harmless. Since MWS has the above features, it can be expected to be applied to food packaging materials, dew condensation absorbent films (sheets) and other fields. At present, MWS has been applied to the vacuum packaging of wine trough foods, and it is compounded with other materials. As a wrapper for multi-moisture semi-finished foods, MWS gives full play to its advantages of mildew proof, water absorption and water resistance.
Second, thermal energy class 1, protein coating packaging paper A Japanese food company has also developed a protein-coated wrapper, which is a packaging paper made by dissolving the protein after a special process. The protein-coated wrap film coated with protein as a coating on the paper can withstand a certain temperature, prevent water eroding, non-toxic, convenient for food processing, and does not pollute the environment.
2. Solar energy converted to thermal paper The United States has developed a paper that converts solar energy into heat, which can function as a solar collector. Use this type of insulation paper to package foods and place them in a place exposed to sunlight. The food in the package will be heated. Only when the package is opened, the heat can be dissipated.
3, heat-sealing packaging paper Heat-sealing packaging paper has heat-sealing, ventilation, and has oil resistance, good water resistance, safe and harmless. In order to make the packaging paper heat-sealable, the surface of the heat-sealable resin paper is covered with a coating or bonded with polyethylene to make it have a heat-sealability, and no secondary processing is necessary to obtain air permeability, and its air permeability can be The user requests control. Foods packaged in this kind of air-permeable wrapper can be heated by electron waves and there is no steam in the package, which keeps the food surface fresh. As it has the above features, the heat-sealable wrapper can be expected as a packaging material of frozen food heated by electron waves, which has been used for packaging hamburgers.
4, insulation packaging paper
The function that this kind of paper should have is to maintain the fragrance, freshness, and heat after the cooked food is packaged so that people can eat it conveniently at different venues and times to meet the needs of people's daily life. The principle of this insulation paper is to convert light energy into heat like a solar collector. Usually, people only need to put this special paper in the place where sunlight can shine, and the space surrounded by the paper will be constantly replenished with heat, so that the food in the paper will maintain a certain degree of heat, so that people can enjoy the heat and taste at any time. Food.
III. Fruits and Vegetables 1. Pomace Paper Japan's Takasaki Paper Company uses fruit pomace discarded from the food industry to produce pomace paper. The method is simple, remove the grains in the pomace, pound them into pulp, and add appropriate amount of wood fiber to make As a result, this type of residue paper is easily decomposed after use, and can be burned or composted, and recycled paper can also be recycled, making it less likely to pollute the environment.
2. Okara Paper A Japanese research institute has used new technology to make bean dregs the raw material and made a kind of wrapper that can meet the heat and have certain nutritional value. The wrapper is suitable for instant noodles seasoning and can be eaten together when eaten.
3. Carrot wrapping paper The carrot paper developed in the United Kingdom uses carrots as a base material, adding appropriate thickeners, plasticizers, and water repellents, and using the natural color of carrot, it can be used as a cheap edible color. Vegetable paper. This product can be used as an individual (inner) package of boxed foods or eaten directly as a convenience food. It can not only reduce environmental pollution, but also enhance the beauty of food and increase consumers' food taste and appetite. Carrot paper is an edible color paper, with strong flexibility and a certain degree of waterproof, with packaging and eating functions. If we can further improve the strength and plasticity, improve the surface (texture), and make products of various shapes (boxes, bowls, etc.), we can further expand its use, better protect the environment, and provide new ways for deep processing of vegetables.
Fourth, anti-mutilation class 1, environmental protection paper roll A Japanese company introduced a kind of anti-corrosion paper that can be used for food packaging. Its production process is as follows: The base paper is first immersed in an ethanol solution containing 20% ​​of succinic acid, 33% of sodium hyaluronate and 0.07% of sorbic acid, and then dried. Foods with marinade in this paper can be stored at 38"C for 3 weeks without deterioration.
2. A new type of packaging paper produced by a Japanese company, Long-term anti-mold paper, which can prevent moldy and spoilage of food for a long time and does not damage the flavor of food. The paper is a combination of a special monoglyceride and a The components are dissolved in an aqueous solution of water and ethanol, and then sprayed or infiltrated on paper, and finally dried by heating. It can be used to package a variety of foods.
3, fruit fresh paper In order to maintain the freshness of fruit, Singapore developed and produced a fresh packaging paper, this paper has antibacterial, bactericidal agents. The apple was stored on this type of paper and opened after six months. The fruit was still full. Another fresh-keeping paper can keep fresh citrus for 3 months, and litchi can also keep fresh for more than 30 days.
Fifth, environmental protection class 1, environmental protection paper roll A British company has successfully developed and developed a green paper roll that can replace foam plastic packaging materials. There are many small nicks on the top and occupy less space. When the paper roll is pulled apart, it becomes a three-dimensional honeycomb with an area 10 times the original. It can act as a cushioning cushion for filling and holding packaged goods. The paper roll is made of recycled fiber and can be recycled for reuse; when it is discarded, it can be biodegraded.
2, PLMEX food packaging paper in Europe and the United States on the market there is a new PLMEX food packaging paper, it is 100% pure pulp, does not contain fluorescent agents and hazardous chemicals, with water, oil, anti-sticking, resistant Hot (can withstand 200 ~ C to 250 ~ C high temperature) features. Easy to use, simple to clean, safe and hygienic, in line with the United States FDA and Germany BGA food hygiene standards. This food special paper can be recycled after cleansing with clean water after use, and can be used repeatedly 50 times. This type of food paper is rolled and pressed into a variety of paper cup shapes. Whether used for steaming, baking or microwave heating, it does not deform or fade.
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VI. Other 1. Artificial peel paper A type of artificial peel paper that can be recycled has been favored after it was launched in the foreign market. This artificial peel paper is made of special materials. It is completed on the factory's automatic line together with the production of food. It is a tight Transparent Pouch or transparent shaped ring body. It is tough and elastic and can extend food. Shelf life, as long as the food peeled off artificial peel paper on the line.
2. Paper cans The current annual consumption of aluminum cans in China is between 600 and 700 million. Raw materials need to be imported, and the annual demand for price cans will gradually reach 15 billion. Its excellent characteristics will inject new vitality into the Chinese packaging industry. .
3. Propylene Synthetic Paper Japanese experts used propylene in LPG as a raw material to make a synthetic paper. This paper is strong, not easy to break, has a smooth surface, no wrinkles, no moisture, and no discoloration. This kind of paper is lighter than ordinary paper and is not easily stained with dirt. It is a good material for printing, writing and food packaging.
4, foam paper Germany PSP company developed a new process of foam paper production, using it to produce packaging materials can replace foam plastic section. The foam paper uses old books scrap paper and flour as raw materials. The old newspapers are first cut into shreds, then ground into fibrous pulp, and mixed with flour in a ratio of 2-1. The mixed pulp stock Into the extrusion press into cylindrical particles. During the extrusion process, the raw material is subjected to steam as a foam paper. Using this type of foamed paper pellet as raw material, various shapes of plastic packaging can be produced according to different needs. Foam paper can be molded once, without chemical additives, and can be recycled after use.
5, hard light packaging paper A Finnish company successfully developed a hard, lightweight packaging paper. This kind of wrapper is 10%-20% lighter than ordinary paperboard. Besides its odorless, organic survival properties, it also has heat resistance and the same printability as pure pulp board, especially suitable for packaging chocolate, ice cream, frozen food, etc. For a variety of flavor-type packaging and manufacturing snack boxes.
6, self-adhesive packaging paper South Korea made a white sticky packaging paper, the outer layer is kraft paper, the inner layer is a special foam material, with flexibility and excellent corrosion resistance, the town to ensure that the surface of the packaging from wear. Because of its inherent stickiness, no ropes and straps are required for packaging. Once the wrapper is unpacked, it loses its adhesiveness automatically, so it also has the effect of preventing the person from being unpacked.
Foods are heavily used in plastic packaging, and plastic waste is difficult to handle because plastics are extremely difficult to decompose. Therefore, some developed countries have partially restricted the use of plastic packaging. For this reason, the development of food packaging paper has become a consensus of food and packaging. According to the different angles of food packaging papers, new food packaging papers can be initially divided into the following categories. This is an important achievement that countries have made since the beginning of 2003.