Development of 23 New Food Packaging Papers

A large number of food packaging applications plastic packaging, because plastic is very difficult to natural degradation, plastic waste is difficult to handle, so some developed countries have partially restricted the use of plastic packaging. For this reason, the development of food packaging paper has become the consensus of the food and packaging industry. According to the different angles of food packaging papers, the new food packaging papers developed at home and abroad have the following 23 new varieties.

1) Dewatering wrapping paper. This type of packaging paper, called PS, uses a semi-permeable membrane that can only penetrate water as a surface structure material, and a high-permeability membrane material and a polymer water-absorbing agent. The wrapper does not damage the fine film of the food, 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) Water absorption function paper. The biggest feature of absorbent functional paper is its strong ability to absorb water. It can hold 10 times the weight of the material and 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 the absorbent paper not only retains moisture in the pores between the fibers of the raw material, but also the fibers themselves absorb water. The absorbent paper becomes very soft after absorbing water. Due to the above characteristics, the water absorbing functional paper can be used as a film (sheet) for absorbing foods such as ham and sausage, a film (sheet) for absorbing fresh food drips, and a film for cosmetics and sanitary materials.

3) Acid-free waterproof archives. The new type of waterproof packaging paper and paperboard (without acid and water proof archival paper) independently developed by Hunan Changde Cigarette Factory Jinxi Rong (Special) Paper Co., Ltd. successfully filled the domestic blank. The company has started projects since 1996 and has invested 3.15 million 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 Paper Co., Ltd. of Minnesota, USA developed M-Guard screen wet cardboard, which looks like corrugated paperboard. It is also similar to commonly-used lined paperboard, and can be printed, recycled, and beaten. The board's screen wet performance has a visual effect. This screen wet performance is due to the effect of internal chemical bonding during the manufacturing process of the board, saving time without any conversion. The board achieves good screen wet performance through its inherent absorption.

5) Water resistant paper. Water-resistance processing paper is resistant to Shuizhou:. With good air permeability, it has no water repellent property, so its penetration rate is higher than that of other materials, its surface strength and interlayer strength are high, it has antibacterial properties, and it can also absorb nitrogen. This feature is not based on the addition of resins and chemicals, but on the raw material of the pulp, so it is safe and harmless. Because of its above characteristics, it can be applied to food packaging materials, dew condensation films (sheets) and other fields. At present, this type of paper has been applied to the vacuum packaging of foods, and it is compounded with other materials. As a packaging paper for multi-moisture semi-finished products, it fully exerts its advantages of mildew proof, water absorption and water resistance.

6) Protein-coated wrapper. A Japanese food company has also developed a protein-coated wrapper, which is a wrapper made by dissolving protein and made by a special process. It is made of protein coated on paper to prevent water erosion, mildew, convenient food processing, and no environmental pollution.

7) Paper solar energy is converted into heat energy. The United States has developed a paper that converts solar energy into heat, which can function as a solar collector. Foods packaged in such insulated paper are placed in a place exposed to sunlight, and the food in the package is heated. Only when the package is opened, heat can be dissipated.

8) Heat-sealing wrapping paper. Heat-sealing packaging paper has heat-sealing property, air permeability, and has the characteristics of oil resistance, water resistance, safety and harmlessness. 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. With this kind of breathable packaged food, it can be heated by electromagnetic waves and there is no steam in the package, which can keep the food surface fresh. Because of its characteristics, the heat-sealing wrapper can be used as a packaging material for frozen foods heated by electromagnetic waves, and it has been used for packaging hamburgers.

9) Insulation wrapper. The function that this kind of paper should have is to maintain the freshness, freshness, and freshness of cooked foods, so that people can ask for convenience when they are in different places. The site adapts to the fast-paced needs of people today. 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 on the place where the sun 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 taste of heat at any time. Food.

10) Fruit residue paper. Japan's Takasaki Paper Co., Ltd. uses fruit pomace discarded from the food industry to produce pomace paper. The method is simple, and the grains in the pomace are removed and pulverized into pulp, which can be made by adding an appropriate amount of wood fiber. This kind of fruit residue paper is easily decomposed after use, and can be burned or composted. It can also be recycled and recycled, making it less likely to pollute the environment.

11) Okara paper. A Japanese research institute, using new technology, uses bean dregs as a raw material to produce a kind of wrapper that can be eaten with heat and has certain nutritional value. The wrapper is suitable for instant noodles seasoning and can be eaten together when eaten.

12) Carrot wrapping paper. Carrot-based carrots are used as base materials in the United Kingdom. Appropriate thickeners and plasticizers are added. The natural color of Carrot L can be used to produce edible vegetables that are inexpensive and edible. 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 L-paper is a ready-to-eat colored paper with strong flexibility and a certain degree of waterproofness. It has a packaging function and a food function. 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.

13) Green paper roll. A Japanese company introduced a kind of anti-corrosion paper that can be used for food packaging. Its production process is: first immersed the raw paper in an ethanol solution containing 2% of succinic acid, 33% of sodium hyaluronate and 0.07% of sorbic acid, and then dried it, using the paper packaging tape Marinade foods can be stored at 38°C for 3 weeks without deterioration.

14) Long-lasting mildew-proof paper. A new type of wrapping paper produced by a company in Japan that can prevent moldy deterioration of foods for a long time and does not damage food flavors. The paper is an aqueous solution in which a special monoglyceride is fused with a compound thereof and dissolved in water and ethanol as an active ingredient, and then sprayed or infiltrated on a paper and finally heat-dried. It can be used to package various materials. food.

15) Fruit lap paper. In order to maintain the freshness of fruit, Singapore developed and produced a fresh-keeping wrapping paper that has antibacterial and bactericidal properties. Using this kind of paper to store apples, it is still full after half a year. Another plastic wrap can protect citrus for 3 months, and lychee can preserve 30 days

16) Environmental protection paper roll. A British company developed and developed an environmentally friendly paper roll that can replace foam plastic as packaging material. There are many small cracks 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 material. The paper roll is made of recycled fiber and can be reused; when it is discarded, it can be biodegraded.

17) PLMEX food packaging paper. There is also a brand new PLMEX food packaging paper on the European and American markets. It is a 100% pure pulp paper that contains no fluorescent agents and chemical substances that harm the human body. It is waterproof, oil-repellent, anti-stick, and heat-resistant (up to 200- 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 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.

18) Artificial peel paper. An artificial peel paper that can be recycled is favored after its introduction in foreign markets. 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. The shelf life, as long as the use of artificial peel peeled on the line.

19) Paper cans. At present, the annual consumption of aluminum cans in China is between 6 billion and 7 billion, raw materials are imported in large quantities, and the price is high. Together with environmental pollution and other factors, the country has no longer approved the new aluminum can production line. Whether it can find new packaging containers instead of aluminum cans has become a concern in the industry. The birth of paper cans overcomes various drawbacks of aluminum cans and has broad prospects for development. The construction of an aluminum can production line requires at least 17 million yuan, while the paper can production line only needs 2 million yuan; the minimum batch volume of aluminum cans is 20 million, and the economic volume of paper cans is more than 20,000. Paper cans can be used in paint, chemical, food, medicine and other packaging, but also used to produce paper boxes, paper cups, paper drums and other products.

20) Propylene synthetic paper. Japanese experts made a synthetic paper using propylene in the LPG as raw material. 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. It is a good material for printing, writing and food packaging.

21) Foam paper. PSP, a German company, has developed a new process for foam production that uses its packaging materials to replace foam. The foam paper uses old books scrap paper and flour as raw materials. First, the old newspapers reported are cut into shreds, then milled into fibrous pulp, and mixed with flour in a 2:1 ratio. 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. With this kind of foam paper particles as raw material, a variety of packages can be produced according to different needs. Foam paper can be shaped - no chemical additives, and recycled after use.

22) Hard lightweight packaging paper. A Finnish company successfully developed a hard, lightweight wrapping paper. This kind of wrapping paper is 10%-20% lighter than ordinary paperboard. Besides having odorless properties, it also has heat resistance and the same printability as pure pulp board. It is especially suitable for packaging chocolate, ice cream, frozen food, etc. A variety of aroma-type packaging and manufacturing snack boxes.

23) Self-adhesive wrapping paper. Korea made a kind of self-adhesive wrapping paper. The outer layer is kraft paper. The inner layer is a special foaming material. It has elasticity and excellent corrosion resistance, which can ensure that the surface of the packaging is not frayed. Because of its inherent stickiness, no ropes and straps are required for packaging. The wrapper loses its tackiness as soon as it is unsealed, so it also has the effect of preventing the person from being unsealed.

Source: "Packaging Project"