Synthetic kraft paper

Synthetic kraft paper is the latest research result of imitation paper film. It is a new type of packaging material with both functions and environmental protection.

Imitation paper film, also known as “synthetic paper” or “pearlescent paper”, was born in the 1960s. At that time, due to the tight supply of pulp and the excess supply of synthetic resin, it was envisaged that a new type of chemical product could be invented instead of ordinary. Because of the function of the paper, the plastic material that was then called "synthetic paper" was later developed. However, the successful development of synthetic paper, that is, the "oil crisis" occurred in the 70's, so it has been put aside, the development is relatively slow. After several decades of continuous development, the international plastics industry has achieved certain research results in the processing and application of synthetic paper, such as “Pearl Paper” in South Asia, and “Nonwoven” technology from DuPont in the United States. The “imitation paper film” of Guangdong Shunde Deguan Film Co., Ltd. (full name: Guangdong Shunde Deguan Biaxial Stretch Film Co., Ltd.) is a scientific and technological achievement in the field of synthetic paper.

Since the development of imitation paper (synthetic paper), the main production methods include calendering, casting, blown film, biaxial stretching and "nonwoven paper" production processes. Among these methods, the biaxial stretching method is one of the most widely used methods in terms of process and formula technology, and is the most widely used method for the manufacture of finished products. At present, the "Pearl Paper" produced by Taiwan South Asia Company and the Guangdong Shunde Deguan Film Company are produced. The "imitation paper film" is based on this method and is still a relatively advanced packaging processing technology in the international packaging industry.

At present, the larger international imitation paper film (synthetic paper) production companies in the world include DuPont, Kimberly Company of the United States, Japan Prince Okurin, Nissin Seisui Sekisui Chemical Co., Ltd., British BXL Corporation, and Puglia Corporation of France. Taiwan South Asia company, Guangdong Shunde Germany crown film. In China, the main sources of supply for imitative paper (synthetic paper) are "imitation paper film" produced by "Deguan Film" and "Pearl Paper" produced by Taiwan South Asia Company.

The performance of imitative paper (synthetic paper) is very unique. In addition to the characteristics of plain paper, it also has the advantages of plastic film, such as waterproof, printing composite effect, tensile strength, corrosion resistance, insect resistance, dimensional stability , It can have the characteristics of heat sealing and so on, so it can be used more widely than ordinary paper. At present, the imitated paper film (synthetic paper) mainly has the following uses:

Food packaging, industrial product packaging, tire packaging, express envelopes, various packaging boxes, advanced color printing, high-grade books, maps, charts, pictorial, business cards, playing cards, advertising paper, recording papers, textbooks, ancient books, samples, Calendars, greeting cards, paper hats, menu cards, advanced notebooks, various packaging bags, pharmaceutical and cosmetic substrates, photo papers, tracing papers, tourism promotional items, etc.

With the deepening of the research on imitative paper (synthetic paper), the performance of imitative paper (synthetic paper) is improved, and its application field will be further expanded.

The emergence of imitation paper (synthetic paper) has a positive effect on the country's environmental protection and development. With the rapid development of China's economy, the demand for paper has further expanded. At present, China's paper is mainly produced from plant fibers such as straw pulp and wood pulp. Due to the complicated production process, a large amount of pollutants are discharged during the production process, and the national environmental protection department has closed thousands of small paper mills according to law. In addition, due to the restrictions on deforestation, all the wood pulp needed for advanced coated paper will depend on imports. Therefore, synthetic paper has a wide range of application prospects in China.

But at the same time, we must also see some disadvantages of synthetic paper. For example, the cost of synthetic paper is relatively high, and ordinary manufacturers are unable to bear the cost pressure. The market demand is limited and immature. Synthetic paper and ordinary fiber paper are not easy to be separated after being mixed, resulting in increased difficulty in recycling paper mills; synthetic paper is discarded after being discarded. It is not easily decomposed by the natural environment and there is a certain amount of environmental pollution. However, in general, imitation paper (synthetic paper) is one of the plastic packaging materials with great potential for future development.

After decades of development, the imitation paper film (synthetic paper) has been widely used in the packaging and printing industry. However, in China, the imitation paper film (synthetic paper) is a relatively new concept and has a smaller application range. With the development of China's packaging industry, imitation paper (synthetic paper) will rise in China, and China's packaging industry is gradually strengthening the research of imitation paper (synthetic paper). Recently, according to the needs of the market, "Deguan Films" has successfully developed the world's unique "synthetic kraft paper", also called "yellow imitation paper film", which has added a new packaging material for the world packaging industry.

Synthetic kraft paper is a special imitation paper film. Compared with the general imitation paper film (the appearance is mainly white), it has more unique advantages in certain aspects and its use is more professional. Synthetic kraft paper is mainly based on the appearance effect of kraft paper. The purpose is to provide environmental protection, aesthetics and other packaging needs, instead of part of the market application of kraft paper.

It is well-known that kraft paper will cause a great deal of pollution to the environment during its use, and it will be difficult to recycle it after it is mixed with non-homogeneous products. For example, the appearance of traditional polypropylene woven bags is poor, printing, shading effect is not good, and to achieve better printing, shading effect, need to be laminated through PE laminating with kraft paper to form kraft paper woven bags. The kraft paper woven bag made of this kind of technology is made of a mixture of PP, PE and fiber paper (kraft paper). It can not be recycled, but can only be used for waste treatment. It is a serious environmental pollution. At present, yellow imitation paper (synthetic paper) is used instead of kraft paper. Because the synthetic kraft paper (imitation paper film) and the woven bag are made of the same material (both are PP materials), they can be easily recycled and reused, and they have good environmental performance. . The woven bag made by this method not only looks elegant and upscale, but also has a strong visual effect, improves the grade of the product, can bring more profits to the merchant, and has a good shading effect. At the same time, the synthetic kraft paper is waterproof, insect-proof, and reinforced. The effect has strengthened the ordinary function of the traditional woven bag.

At present, synthetic kraft paper is mainly used in the packaging of feed, fertilizer, seeds, and rice. At the same time, it can also be applied to the packaging of metal and chemical raw materials, the outer packaging bags of cement, the packaging of products with high requirements for UV protection or other requirements with high shading performance, and the packaging fields for packaging products that can be easily decomposed by light.

It is understood that "De crown film" not only developed a synthetic kraft paper, but also in accordance with the requirements of the user on the appearance of synthetic kraft paper to varying degrees to meet the different needs of customers. Currently, Deguan Films has applied for a patent for synthetic kraft paper, and hopes to retain this research result through national protection of intellectual property rights.

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