Classification and performance summary of the late

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Classification and performance summary of new food packaging paper

for a long time, plastic products have been widely used in food packaging, which is extremely difficult to degrade naturally, causing serious environmental pollution. Therefore, some developed countries have partially restricted the use of plastic packaging. Therefore, the development of food packaging paper has become the consensus of the food and packaging industry. According to the project that food packaging paper focuses on, different materials are divided into four categories: "crisp and firm", "sticky and fit", "smooth and round", "soft and elastic". From different angles, new food packaging paper can be preliminarily divided into the following categories

waterproof dehydrated wrapping paper

this kind of wrapping paper called PS selects the semi permeable membrane that can only penetrate water as the surface material, and the inner side is placed with high osmotic pressure substances and polymer absorbent. The packaging paper will not destroy the food tissue cells, but also inhibit the activity of mold, prevent protein decomposition, reduce microbial reproduction, and achieve the effect of maintaining the freshness, concentration, fresh ingredients and improving toughness of food

water absorbent paper

the biggest feature of water absorbent paper is its strong water absorption capacity, which can maintain 10 times the self weight of this material, and is safe and harmless. There are significant differences in water absorption capacity and water retention between water absorbent paper and non-woven fabrics, and water absorbent paper is obviously dominant. This is because non-woven fabrics can only retain water in the pores between the raw material fibers, and water absorbent paper not only has the above capacity, but also its fibers themselves can absorb water. After the absorbent paper absorbs water, it becomes very soft. Due to the following characteristics, absorbent paper can be used as a film (piece) to absorb condensation of ham, sausage, etc., a film (piece) to absorb dripping of fresh food, and a film for cosmetics and sanitary materials

acid free waterproof archival paper

a new type of waterproof packaging paper and paperboard (acid free waterproof archival paper) independently developed by Hunan Changde cigarette factory jinfurong (special) Paper Co., Ltd. has successfully filled the domestic gap. The company has invested 3.15 million yuan to develop new waterproof packaging paper since 1996. According to relevant experts, the new waterproof packaging paper and paperboard have a wide range of applications

screen wet paperboard

Minnesota liberty Paper Co., Ltd. developed m-guard screen wet paperboard, which looks like corrugated paperboard and is also similar to commonly used lined paperboard. It can be printed, recycled and then pulped. The wet screen performance of the paperboard has a visual effect. This kind of wet screen performance is caused by the internal chemical bonding performance in the paperboard making process, without any conversion, which can save time. The paperboard achieves good moisture shielding performance through its internal absorption

water resistant processing paper

water resistant processing paper has good water resistance and air permeability, because the penetration rate is higher than other materials, its surface strength and interlayer strength are high, it has antibacterial property, and it can absorb ammonia, etc. These characteristics are not obtained by additive resins and chemicals, but by the pulp of raw materials, so they are safe and harmless. Because MWS has the above characteristics, it can be expected to be used in food packaging materials, dewing and water absorbing films (tablets) and other fields. At present, MWS has been applied to the vacuum packaging of wine trough pickled food and compounded with other materials. As the packaging paper of multi moisture semi-finished food, it gives full play to its advantages of mold resistance, water absorption and water resistance. Thermal protein coated packaging paper. A Japanese food company has also developed an egg white coated packaging paper, which is a packaging paper made by dissolving protein. Protein is used as a coating on paper, and the packaging paper film is made by special process. It can withstand a certain temperature, prevent erosion, non-toxic, convenient for food processing, and does not pollute the environment

paper for converting solar energy into heat energy

the United States has developed a paper that can convert solar energy into heat energy, which can act as a solar collector. Using this kind of heat preservation paper to package food, put it in the sunshine, and the food in the package will be heated. Only when the package is opened, the heat can be dissipated

heat sealing packaging paper

heat sealing packaging paper has the characteristics of heat sealing, ventilation, good oil and water resistance, safety and harmlessness

in order to make the packaging paper have heat sealing property, the surface of the heat sealing resin paper should be coated or bonded with polyethylene to make it have heat sealing property, without secondary processing to obtain ventilation, and its ventilation can be controlled according to user requirements. The food packaged with this breathable wrapping paper can be heated by electronic waves, and there is no steam in the package, so that the surface of the food can be kept fresh. Because it has the following characteristics, heat sealing packaging paper can be expected to be used as the packaging material of frozen food heated by electronic waves. At present, it has been used to package hamburgers

thermal insulation wrapping paper

the function of this paper is to keep cooked food fragrant, fresh and hot after packaging. Yulian group is the largest private project invested by Russian industrial investment group viholding in China, which is convenient for people to eat on different occasions to meet the needs of today's fast-paced life. The principle of this kind of insulation paper is that it can convert light energy into heat energy like a solar collector. Usually, people only need to put this special paper in a place where the sun can shine, and the space surrounded by the paper will be constantly supplemented with heat, so as to keep the food in the paper hot, so that people can eat delicious food at any time

fruit and vegetable pulp paper

Japan Gaoqi paper company produces fruit pulp paper from apple pulp discarded in the food industry. The method is simple. Remove the seeds in the fruit pulp, pound it into pulp, and add an appropriate amount of wood fiber. This fruit pulp paper is easy to decompose after use, can be burned or composted, and can also be recycled for papermaking, which is not easy to pollute the environment

soybean dregs paper

a Japanese Research Institute used new technology to make a kind of edible packaging paper that is soluble in heat and has certain nutritional value with soybean dregs as raw materials. The wrapping paper is suitable for the packaging of fast food noodles and seasonings, and can be eaten together when eating

carrot wrapping paper

the carrot paper developed in the UK takes carrots as the base material, adds appropriate thickeners, plasticizers and water repellents, and uses the natural color of carrots with more than 3/4 hot-air plastic granulator to make edible colored vegetable paper with low price and good quality. This product can be used as an individual (inner) package of boxed food or directly as a convenience food, which can not only reduce environmental pollution, but also enhance the beauty of food and increase consumers' interest and appetite. Carrot paper is a kind of edible colored paper, which has strong flexibility and certain water resistance, and has packaging and edible 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 a way for deep processing of vegetables

anti deterioration environmental protection paper roll

a Japanese company has launched an anti-corrosion paper that can be used for food packaging. Its production process is: first immerse the base paper in an ethanol solution containing 20% succinic acid, 33% sodium hyaluronate and 0.07% sorbic acid, and then dry it. The food packed with brine with this paper can be stored at a high temperature of 38 ℃ for 3 weeks without deterioration

long-term mold proof paper

a new type of packaging paper produced by a Japanese company that can prevent food from mildew and deterioration for a long time and does not damage food flavor. The paper is made by fusing a special monoglyceride with its compounds, dissolving it into water and ethanol as an effective component, then spraying or soaking it on the paper, and finally heating and drying it. It can be used to pack all kinds of food

fruit preservation paper

fruit preservation paper in order to maintain the freshness of fruits, Singapore has developed and produced a kind of fresh-keeping packaging paper, which has antibacterial and bactericidal agents. Store apples with this paper, and after half a year, the fruit is still full. Another kind of fresh-keeping paper can keep citrus fresh for 3 months and litchi fresh for 30 days

environmental protection paper roll

a British company has successfully developed an environmental protection paper roll that can replace foamed plastic. There are many small cracks on it, which occupy a relatively small space. When the paper roll is opened, it becomes a three-dimensional honeycomb, with an area of 10 times the original

it can act as a buffer liner and is suitable for filling and maintaining packaged goods. The paper roll is made of recycled fiber, which can be recycled and reused; When discarded, it can be biodegradable

plmex special packaging paper for food

there is also a brand-new plmex special packaging paper for food in the European and American markets. It is 100% pure pulp, does not contain fluorescent agents and chemicals harmful to human body, and has the characteristics of water-proof, oil-proof, viscosity resistant and heat-resistant (or high temperature from 200 ℃ to 250 ℃). It is easy to use, easy to clean, safe and hygienic, and meets the food hygiene standards of American PDA and German PGA. This kind of special paper for food can be recycled after washing with clean water and can be reused for 50 times. This kind of food paper can be rolled or pressed into various paper cup shapes. No matter it is used for steaming, baking or microwave heating, it will not deform and fade

other artificial peel paper

a kind of recycled artificial peel paper is very popular after its introduction in foreign markets. This kind of artificial peel paper is made of special materials. It is completed together with the production of food on the automatic line of the factory. It is a tight transparent bag or transparent special-shaped ring. It is tough and elastic, which can extend the shelf life of food. When eating, just peel off the artificial peel paper

at present, the annual consumption of aluminum cans in China is 6billion to 7billion. Raw materials need to be imported in large quantities and are expensive. Coupled with environmental pollution and other factors, the state no longer approves the construction of new aluminum cans production lines. Whether to find a new packaging container to replace aluminum cans has become a concern of the industry. The birth of paper cans has overcome the disadvantages of aluminum cans and has broad prospects for development. It needs at least 17million yuan to build an aluminum can production line, while it only needs 2million yuan to build a paper can production line; The minimum batch of aluminum cans is 20million, which will be forced to be used in the logistics industry, and the economic batch of paper cans is more than 20000. Paper cans can be used for the packaging of paints, chemicals, food, drugs, etc., and also for the production of paper lunch boxes, paper cups, paper barrels and other products. Relevant experts predict that China's annual demand for cans will gradually reach 15billion, and its excellent characteristics will inject new vitality into China's packaging industry

propylene synthetic paper

Japanese experts have made a kind of synthetic paper using propylene in petroleum gas as raw material. This paper ground is strong, not easy to crack, smooth surface, no wrinkles, not afraid of moisture, and will not change color. This kind of paper is lighter than ordinary paper and is not easy to get dirty. It is a good material for printing, writing and food packaging

foam paper

German PSP company has developed a new process for the production of foam paper, and the packaging materials produced by it can replace foamed plastics. This kind of foam paper uses old book scrap paper and flour as raw materials. First, the recycled old books and newspapers are cut into pieces, and then ground into fibrous pulp. It is mixed with flour in the proportion of 2:1. The mixed paper pulp is injected into the extruder and pressed into cylindrical particles. During the extrusion process, the raw material becomes foam paper under the action of steam. Using this kind of foam paper particles as raw materials, various shapes of plastic packaging can be produced according to different needs. Foam paper can be formed at one time,

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