Waste paper packaging interpretation changes
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A few days ago, in Shanghai, we found that waste paper packaging "turned into" plastic wood flooring. After "green travel", through the processing and processing of professional manufacturers, waste paper packaging can produce a large number of daily necessities and industrial materials such as recycled paper, flooring, trash cans, hangers, table tennis bats, trays, etc., which is beneficial to environmental protection. Can produce good economic benefits.
The scientific name of the paper packaging is “composite paper packaging”, which is composed of 75% pulp, 20% plastic and 5% aluminum.
One change: high quality paper
10% recycled composite paper packaging, fortunate enough to participate in environmentally friendly travel, in this trip, they can participate in a series of wonderful juggling games.
High-quality kraft paper is the first trick of composite paper packaging.
Kraft paper pays attention to the fastness, so it should be produced from long-fiber pulp. The imported long-fiber pulp is priced at 5,000-6,000 yuan per ton. According to estimates, 80,000 composite paper packages weigh about 1 ton and can extract 500 kilograms of high-grade pulp. In ordinary pulp, as long as 20%-40% recycled paper packaged recycled pulp is added, it can be made into high-quality kraft paper, and the market price is 4,500 yuan - 5,000 yuan. Kraft paper produced from recycled paper pulp wrapped in composite paper has a production cost of 1,000 yuan per ton compared to kraft paper produced from imported pulp.
Composite paper packaging The separated pulp can be directly made into recycled paper products such as paper, envelopes, paper bags, books, exercise books, etc., and can also be mixed with other pulp to make board paper, shoe midsole, paper towel, and the like. Since the paper in the composite paper package is made of high-quality virgin fiber, it is much more cost-effective than ordinary waste paper. According to reports, the price of paper products made from recycled pulp made from ordinary waste paper is 2,500 yuan per ton, while the price of paper products made from recycled paper wrapped in composite paper is about 5,000 yuan per ton.
Two changes: aluminum plastic particles
The fiber, aluminum layer and plastic layer of the composite paper are bonded together by thermal compounding. Because the expansion and gravity of the three materials are different, the composite paper package is put into a professional hydraulic pulper for mixing and beating. No heating and auxiliary chemicals are required, and the fibers, plastic layers, and aluminum-plastic layers are automatically separated and suspended in water.
The aluminum-plastic and paper-coated plastic papers were transformed into aluminum-plastic particles after they were “divided”. The price of aluminum-plastic particles in the market is 3,000 yuan per ton. The particles can be used in 30% of the raw materials of aluminum-plastic composite panels. It is the raw material for manufacturing flower pots, industrial pallets, sewage pipes and other plastic products. According to reports, there have been more advanced separation technologies in foreign countries, which can separate aluminum plastic ions into aluminum ingots and paraffins. Aluminum ingots can once again become the raw material for the production of composite paper packaging. The price per ton in the market is about 19,000 yuan, and paraffin wax can be used as chemical raw materials.
Three changes: color music board
A set of student desks and chairs, a teacher's podium... These seemingly ordinary furniture are not ordinary, all made of discarded composite paper packaging materials! Every year, more than 4,000 tons of discarded composite paper packaging in Shanghai is recycled into the “new home” and becomes the raw material for making environmentally friendly furniture. It is reported that these environmentally friendly products have been settled in some schools and factories, and will enter the life of the citizens in the future.
20 Tetra Pak, can be made into a small pen holder; 200 Tetra Pak, can be made into a small stool; 2000 Tetra Pak, can be a small table ... According to the introduction, they will discard the Tetra Pak The packaging is recycled, and then through a series of high-tech processes such as washing, fine crushing, heating, pressing, etc., magically "changing" a piece of material board. He told the author that in addition to furniture panels, many wooden building materials can also be replaced with recycled materials, such as flooring, handrails, skirtings, etc., not only waterproof, moisture, acid and alkali, but most importantly, can save a lot of wood every year.
On the streets of Shanghai, you can see this one-yellow-green double-barrel trash can. This kind of trash can looks different from the ordinary trash can, but the raw material of the barrel comes from the milk and alcohol bags, cans, food packaging bags, disposable snack boxes, etc. Paper materials are then manufactured through a series of high-tech processes such as fine crushing, heating and pressing. This material not only turns waste into treasure, but also waterproof, moisture-proof, acid-resistant, washable, and the strength can reach the national standard of medium density fiberboard. According to the person in charge, an environmentally-friendly garbage bin is equivalent to saving a tree planted for 3 years, which is equivalent to saving 30 kilograms to 50 kilograms of iron ore. It should be full. Environmental trash can". Because it is made entirely of waste materials, there is no trouble with the loss of stainless steel trash cans.
According to reports, this kind of environmental protection trash can just came out, it has already set off a boom in Guangdong, Yunnan, Guizhou, Jiangxi, Hunan, Shandong and other provinces and cities. In only one province of Guangdong, there are already 30,000 environmentally-friendly garbage bins on the streets. More than half of the street trash cans in Guangzhou are “environmentally friendly”. At present, there are about 150,000 various types of garbage bins on the streets of Shanghai. It is planned that after two to three years, half of them will become environmentally-friendly garbage bins. At present, the number of such environmental-friendly garbage bins has not less than 500.
Four changes: high-strength plastic wood
In the Oasis Beverly Villa area, a waterfront bridge is covered with 80 square meters of new materials. It will remain as new as 3 years. This new material is called plastic wood and is crushed and extruded from waste composite paper packaging. This kind of material not only has the water-proof and anti-corrosion characteristics of plastic, but also has the texture of wood. It can replace wood. It is a kind of building material which is more popular in the world. It is widely used as outdoor building materials such as floor, fence, chair stool or waterfront landscape.
According to estimates, the use of one ton of plastic wood products can reduce the pollution of 60,000 discarded plastic bags, equivalent to less than 1.5 trees of 30 years old. After 7 to 10 years of use, these wood-based products can be recycled. The effect of this two-way recycling is unmatched by other materials. Compared with ordinary wood, the price of plastic wood is slightly higher, which is equivalent to the price of high-grade wood preservative in wood. At present, the price per ton of plastic wood in the market is 6,500 yuan, the production cost is 4,200 yuan, and the economic benefits are also considerable.
The origin of environmental protection, the high value, making some manufacturers across the country optimistic about the production of plastic wood. According to reports, the plastic wood products produced by a company in Nanjing are not only used in the leisure chairs of Nanjing Zhongshan Mausoleum and the plank road along the Qinhuai River, but also for the Beijing Olympic Park. According to the design plan, they will provide the Olympic Park with 3,000 tons to 5,000 tons of plastic wood products for the construction of original wooden structures such as plank roads, chairs and flower pots in the park.