BOPP packaging film development prospects

【Chinese Packaging Network News】 Biaxially oriented polypropylene film (BOPP) has advantages of light weight, non-toxic, odorless, moisture resistance, high mechanical strength, good dimensional stability, good printing performance, good transparency, etc., widely used in food Packaging for candy, cigarettes, tea, fruit juices, milk, textiles, etc., has the reputation of “packaged queens”. The wide application, low pollution, and protection of forest natural resources make BOPP film a more popular packaging material than paper and polyvinyl chloride (PVC); the simple and reliable manufacturing process and reasonable price make it more than two-way. Stretched polyester (BOPET) film and biaxially stretched nylon (BOPA) film are more commonly used packaging materials.

Prospects

(1) Under the market environment where BOPP film supply exceeds demand and profit margin is low, it is an inevitable choice for many companies to expand usage, increase product added value, develop new products and improve the performance of BOPP film. At present, there are still large gaps in the production proportion, types, and quality of specialty membranes in China compared with developed countries, and powerful companies can do a great job in the field of specialty membranes. In addition to research and development of new products, improving the performance of BOPP film, improving the important performance control index of the film, and expanding the applicability are also important means to improve the market competitiveness, such as improving the adaptability of ordinary optical film for high-speed printing and printing on light screen printing. Adaptability and thermal dimensional stability, increase the gloss requirements of the pearlescent film for labels, and the heat seal strength requirements of ordinary heat seal films.

(2) Improvements in production equipment can also increase product competitiveness. Large-scale production lines have now been improved from the past three co-extruded layers to five-layer and seven-layer co-extrusion, which helps to improve the product's differential performance; two-way synchronous stretching lines can produce more varieties of products, and the optical properties of the film improve. The high performance, functionalization and differentiation of BOPP film will bring higher value-added products, but high profits are accompanied by high risks, which is also a business need to be vigilant.

(3) Large-scale production lines with a capacity of over 30 kt/a are basically used to produce a large number of products with a single product, because this can bring about economies of scale in the production line, reduce the transition material and waste generated by frequent switching of specifications, and reduce production costs. However, the small-scale production line is characterized by flexible replacement specifications, and produces some varieties that large-scale production lines are not willing to produce to fill the gap in the market. Therefore, according to the actual situation, it is necessary to give full play to their respective advantages, learn from each other and jointly promote the development of BOPP film. For example, in some northern enterprises, the single-line production capacity is less than 15kt/a, and the unit cost of products is more than 500 yuan higher than that of large-scale production lines. In order to survive, production of products such as heat-sealing film, laser film, and film below 9 μm has achieved good results. .

(4) Improve management level. To maintain the long-term operation of production equipment, the procurement of raw materials and the sales of finished products, to grasp the market conditions, the rational positioning of products, the improvement of quality and the research and development of new products, the use of imported equipment and technologies, labor costs, and electricity bills. The control of the item cost is of vital importance to the development of the company and has a close relationship with the level of management. Therefore, we must raise the level of management, do a good job of all kinds of work, so that enterprises in the market competition in an invincible position.