The new papermaking technology - stone papermaking can be both rigid and soft
Thousands of years ago, our ancestors invented papermaking. Today, thousands of years later, Guizhou Panjiang Longmeng New Environmental Protection Materials Co., Ltd. (hereinafter referred to as: Panjiang Longmeng) in Tongzhou Industrial Park, Pingtang County, Qiannan Prefecture "annual output of 120,000 tons of calcium carbonate powder papermaking and supporting grinding facilities" project began trial production, the myth that stone can also make paper has become a reality in Guizhou.
What does paper made of stone look like? What's the use? Fang Jianguo, deputy general manager of Panjiang Longmeng, said in an interview that this kind of paper is low-carbon and environmentally friendly, and has a wide range of uses.
The paper made of stone is soft, tear-resistant and fold-resistant, and the printing effect is good
As we all know, stone is as hard as steel; Paper, soft and fragile. The two were originally things that could not be beaten together with eight poles, but Panjiang Longmeng Company closely linked the two together.
"It's amazing!" When the reporter first saw a magazine made of stone paper, his heart was full of shock. Compared with wood pulp paper, stone paper is not only not hard, but also softer; And it also prints very well, and the colors are more vivid; In addition, stone paper is particularly resistant to tearing and folding.
Seeing that the reporter was so surprised, Fang Jianguo smiled and said: "Who said that stone can only be hard, made into paper, it can be softer than wood pulp paper." "
A few years ago, during the meeting of the Guizhou delegation in Beijing, they were very greedy to see that Hong Kong Longmeng Environmental Protection Paper (Group) Co., Ltd. has invention patents for more than 40 countries "Environmental Protection Paper Manufacturing Method" and its products. After hearing about this, Panjiang Group took the initiative to connect with the other party. After negotiation between the two parties, Panjiang Group and Hong Kong Longmeng Environmental Protection Paper (Group) Co., Ltd. jointly established Panjiang Longmeng Company.
In 2012, Panjiang Longmeng Company planned to invest 1.261 billion yuan in Tongzhou Industrial Park, Pingtang County, Qiannan Prefecture to build a project of "annual output of 120,000 tons of calcium carbonate powder papermaking and supporting grinding facilities", which became the first largest and most invested environmental protection stone paper manufacturing and processing project in our province, and was listed as a major project and key project in our province that year.
The so-called stone paper is the result of a new papermaking technology with modern technical characteristics that is reversible and recyclable and has modern technical characteristics with the most abundant mineral resources in the earth's crust - calcium carbonate as the main raw material, polymer materials and various inorganic substances as auxiliary raw materials, and the use of polymer interface chemistry principles and filling transformation technology.
It can be degraded within 800 hours under low-carbon and environmentally friendly ultraviolet rays
After several years of intense construction, Panjiang Longmeng Company entered the trial production stage in June this year, and products such as environmentally friendly paper, environmentally friendly thick paper, and environmentally friendly composite thick sheet began to roll off the production line.
Expert studies have shown that stone paper can solve a series of problems brought to the environment by traditional papermaking, cutting down trees and production pollution. Stone Paper will not add chemicals, will not cut wood, and will not discharge waste residue, waste water and toxic and harmful gases and substances in production.
Low carbon, energy saving, and environmental protection are not only the major aspects of the development of our province, but also the foundation and bottom line of Panjiang Longmeng's products.
In the production process of stone papermaking, no water and bleach, no wood pulp and strong acid and alkali are used, and the four zero principles of "zero wastewater, zero waste gas, zero noise and zero solid waste" can be fully realized, which ensures the environmental protection of stone paper from the source and has passed the FDA inspection and certification of the United States.
Fang Jianguo said that after this kind of paper is discarded, it can be recycled and reused, and even under ultraviolet irradiation, it can be degraded into powder and returned to nature, thin environmentally friendly paper can be degraded in 300 hours, and thick environmentally friendly thick paper and environmentally friendly composite thick sheet can also be degraded within 800 hours.
Widely used and expected to become a beautiful "wedding dress" for brand products
From the composition of stone paper, seventy percent is calcite stone, and three percent is PE resin "polyethylene" composition. In addition to being soft and tear-resistant, it also has strong advantages such as waterproof, insect-proof, wear-resistant, and good printing effect. Eco-friendly paper made from stone is destined to be unique because of its PE resin content. However, it is not compared with the cost of traditional paper, this particularity, is its market prospect and the basis of competition.
As a new material, stone paper can be used to produce disposable daily necessities, building materials decoration, industrial packaging and special paper, etc., at present, downstream products such as sticky notes and handbags made of environmentally friendly stone paper have entered the market one after another.
"The products are very marketable, although they have only been put into trial production, but some products have been sold to other provinces and Southeast Asia!" Fang Jianguo gave an example of the imitation leather paper produced by the company, and in the market, the price of imitation leather is between 20 yuan and 80 yuan per square meter; The price of stone imitation leather paper is only about 30 yuan per square meter, if you choose this kind of paper, it is not only non-toxic and harmless, but also cost-effective. In the future, many brand products that sell well in the market may use a variety of stone paper in their packaging.
At present, Panjiang Longmeng Company is gradually carrying out cooperative research and development with universities, scientific research institutions and high-tech enterprises inside and outside the province, and creating its own R & D team, investing a lot of R & D funds, carrying out research and development of downstream products in multiple industries and fields, and striving to explore a new way out of the industry.