Analysis of Development Trends of Paper Form Packaging Products

Pulp molded products have been developed with people's attention to environmental protection and breakthroughs in related technologies. Their performance and good recyclability have been widely recognized by people. In particular, the unique good breathability of pulp molded products, when used as packaging products "breathing life" products, such as fruits, eggs, flower seedlings, fresh foods, through its own packaging for its breathable, absorbent, hydrophobic, separated The heat is controlled and adjusted to improve the shelf life and shelf life; together with the increasing demands of the modern society for environmental protection, a wave of "green revolution" is set off for packaging. Therefore, these various factors have brought unprecedented opportunities for the development of pulp molded products. Pulp molded products (abbreviated as paper moulded products) have been developed rapidly and applied more and more, but there are still some problems that need to be researched and innovated. The development trend of paper-molded products is mainly reflected in many aspects such as the use of technology (process), materials (raw materials), equipment processes, and product application scope. Paper Molding Technology Trends Paper molding technology has basically matured. Paper molding products, raw material composition ratio, surface coating treatment, drying and shaping after molding (some without plastic surgery), its technology and production processes have been excessive exploration and research has basically Mature. The paper molding products produced can meet the packaging requirements of most products, such as fruit, poultry, food, communication equipment, small home appliances and other products can be used for paper packaging products for internal packaging or partial packaging. At present, paper molding products people are making innovations and breakthroughs in how to make them lighter, simplify processes and improve efficiency and energy saving. For example, as a surface coating for paper-style packaging of Chinese fast food packaging, many of its coating materials rely on imports, which is a technical problem that urgently needs to be broken through and digested and innovated. At the same time, people are also stepping up to look for plastic molding and drying integration technology (which is already implemented in a few manufacturers). Diversification of raw materials for paper molded products In the past, most of the raw materials used in paper-molded products were made of high-grade wood pulp. Most of these pulps are imported, and they are now becoming more diverse. There are several major trends in the application of raw materials for paper molded products: 1. Plant fibers plus pulp The plant fibers are mainly stalk pulp (shell), wheat straw, and corn stalks, etc. Add a certain proportion of raw pulp to strength and color quality. 2. Starch paper molds are mainly made of various kinds of starch as raw materials through adsorption or grouting into paper products. The more widely used starches are corn starch, sugar cane powder and potato starch. Starch paper molding products have a certain amount of moisture absorption during use, and they will inevitably cause mildew at different levels. Therefore, although some units produce products, a large number of production and applications still need further study. 3. Application of pure plant straw material This kind of material is mainly made of annual herbaceous straw fiber material. It is pulverized by a special process and then formed into a paper molding product. This kind of material is more readily available, suitable for China's national conditions, especially for the vast number of crop by-products found value-added use. Moreover, the relative cost is low, the added value is high, and it can be completely degraded. The production process and its use are also non-contaminated. It can also be used as feed and fertilizer, non-toxic and non-mutagenic activity, and the thermal insulation performance is also very good. After the process has improved the brittleness, odor and color, it will have a bright future. 4. Double Degradable Paper Molding Material This is a kind of multi-degradable paper mold material. It is made by adding a variety of crop waste (straw and rice hull, wheat straw, corn stalk, corn cob, tanned skin, peanut shell, etc.) to a plastic resin after being crushed and powdered. Paper moldings. At the same time, a certain amount of photosensitizer is added. The paper molded product made from this material is actually a paper-plastic product. It is difficult to completely degrade after being used for a long time. It is strictly not a green package. . In addition, there are paper-based molded products made from bean curd residue and sugar cane bagasse. Paper molding equipment tends to become more efficient Multi-functional paper molded products Although their production technology tends to be mature, they were mostly produced through the introduction of large-scale production equipment. At present, due to the limitations of the market and various product usage (output), it is necessary to use small-sized, multi-functional (manufactured multiple products), high-efficiency and energy-saving equipment for production. After many years of introduction, digestion, and innovation, China has been able to manufacture paper molding products related equipment. Through the user's use, market inspection, paper mold production and specifications of many varieties of the actual demand, paper molding products production equipment is becoming more versatile (a device can produce a variety of specifications of paper products), high-speed high-yield high Benefits, process simplification (reduction of some processes: such as shaping or baking), small size, small footprint, simple structure and other directions. Some multifunctional, bake-free, plastic-free small and medium-sized paper mold equipment has begun to enter the use stage. Specially processed paper-molded products with special functions will continue to emerge With the continuous development of social development and various products, various types of special-purpose paper-molded products are required. This special paper-molded product requires special methods for processing. And yes. For example, incorporation of finely ground fibers in different processes can increase their wet strength or improve their hydrophobicity, adhesive strength, and shrinkage, and can also control their biodegradation rate after use or during use; adding fluorocarbons. The compounds, together with the cation-retaining agent, allow paper molded articles to have the properties of repelling paper surface tension, oil and grease-like liquids. It can also meet the special requirements of paper molding products by adding additives such as complexing agents, dyes, flame retardants, modified starch or wet strength resins. The application scope of paper molding products is expanding Modern paper molding products are no longer a single paper mold packaging product in the traditional sense. Its uses and types are expanding and extending. For example, paper molding products have gradually shifted from the packaging of light agricultural and forestry products to the packaging of industrial products (packing of fragile glass, ceramics, enamel products, communications, electronics and precision instrumentation, small mechanical devices and tools); from the past Mainly used for export product packaging to export and domestic sales at the same time; paper mold structure also from the past, a small single function to the direction of large-scale heavy multi-purpose; from the industry point of view, has been used in the past from the packaging industry gradually changed to multiple industries (interior decoration , furniture, daily use, agriculture, fruit and vegetable industry, health industry, etc.). The good performance of paper molding products, especially the environmental protection performance, has been widely recognized by people. However, in terms of promotion and application, little progress has been made. This is mainly because there are still some problems: 1. The high price of paper mold products The biggest problem in the paper mold products used today is the high price, which affects its promotion and application, and currently replaces the most demanding disposable fast food boxes and paper molds. Compared with the EPS fast food box, the fast food box has a difference of 3-5 times in price, and it is difficult for society to accept it, thus affecting the promotion and application. 2. Paper mold products A single type of paper mold products are very simple at present, mainly fast food boxes, buffer lined packaging, and some square, round barrel-shaped agricultural products are not a few inches, unlike plastic products, such as varieties complete, structural diversity. In addition, the appearance and color of the paper molded product are also difficult to compete with the plastic product. 3. The equipment and supporting mold manufacturing technology behind China's current domestic paper mold manufacturing equipment generally has a problem of low efficiency, high energy consumption, model specifications are not many, especially the mold making methods behind, the production of high cost and low efficiency. As a result, the paper mold product has a single product type and high cost. At present, it is urgent to carry out technological innovations for the production equipment of the same paper mold products so as to realize efficient automation. Paper mold manufacturing technology and means urgently need to break through. 4. Lack of policy guidance and control At present, the production and application of paper-based molded products are mostly guaranteed by non-mandatory policies and regulations since the issuance of related products and related technologies and equipment. There are no special standards issued by the state and the department. It is difficult to form large industries for paper molded products.