Molded Pulp is a new type of packaging material, mainly printing, carton plant scrap materials or scrap books, newspapers, etc. for raw materials, scientific process, molding from various packaging materials. This pulp molding packaging materials and packaging are being matched the appearance of the structure and good flexibility and breathability. To be packaged in the transport storage process does not cause damage and pollution. Possess exceptional cushioning, shock, anti-fragmentation, anti-corrosion protection. Abroad in the pulp molding technology developed very quickly, and our hospital through the identification of the technology, and transformed into productive forces. Sales of domestic products minority, the majority of products with the packaging of export. Pulp molding products, the raw materials are cheap value of more than 10 times with good economic social benefits.
Molded Pulp refers to the use of plant fiber by adding water and additives in the slurry system, adopted under the pressure of certain specific Molding to the dry process, such as completion of manufacturing plastic molding products, pulp processing methods. From the pulp molding method in the system known as pulp paper products molding products.
Molded Pulp Industry in the economic cycle is the one, this is because the pulp molding not only the use of resources, waste minimization, and pulp molding the entire production process does not produce any pollutants, pulp Die Plastic products are environmentally friendly reusable, and can be discarded after the natural consumption, is a typical example of green packaging products, therefore, be multi-pulp molding industry attention, and the investment environment has greatly improved.
At the same time, environmental protection laws and regulations, international firms (mostly large multinational groups have their own corporate environmental policy) and IS014000 system driven, driven by an increasing number of enterprises, especially in the European and American enterprises, and actively look for pulp molding Materials to replace their product packaging, and adapt to environmental requirements. This special packaging is environmentally friendly to the pulp molding industrial packaging brought unlimited business opportunities. Molded Pulp industrial packaging, in Shanghai in recent years, has also been relatively rapid development, the Shanghai Environmental Protection Industry Crystal Star Co., Ltd., Shanghai Ming Granville Limited paper plastic packaging companies such as pulp molding industrial packaging products, have been selected 2006 Shanghai outstanding green product packaging.
Second, the main pulp molding products Performance
The so-called pulp molding industrial packaging products, is using a pulp molding design, in order to guarantee industrial products in the storage and transportation security in the buffer packaging. Main properties have sufficient strength, better cushioning properties, moisture resistance properties.
As pulp molding industry is a new field, many domestic and foreign projects, scientific and technological personnel pulp molding products on the performance of a number of studies, mainly in two areas. First, the pulp molding products buffer mechanism; two pulp molding products buffer (unit) structure (strength). And through experimental research pulp molding products, the scope of application.
Impact of the pulp molding products more complicated factors include the following:
Structural design
1, unit structure of the (shape, number, size, height, layout).
2, strengthen tendons structure characteristics (shape, number, height and width, layout).
3, the thickness of products.
4, manufactures structural parameters: Fillet, process gradient.
Raw materials
1, paper texture: fiber length, fiber strength.
2, the ratio of waste paper.
Additives area
1, additives (varieties) selection.
2, the ratio of additives (dose) and add technology.
Other
1, mold manufacturing quality.
2, the production of pulp molding process and equipment performance.
3, pulp molding products, the quality of staff.
Clearly, we must accurately with one or a few indicators to evaluate the propeller molded paper products, performance is very difficult, and in this context, there is no national standard (foreign-related standards have not been reported).
Third, industrial packaging products pulp molding applications
Molded Pulp industrial packaging products are mainly used for electronics, appliances, computers, power tools, industrial instruments, mechanical parts and components, glassware, ceramics, toys, communication products, health care products, pharmaceuticals, cosmetic products, wines, lamps , auto parts, small motors, etc. industrial packaging. Agricultural products, such as eggs, fruits, and other packaging are usually also included in the pulp molding industrial packaging products, pots, cups and other nursery is not typical packaging materials, but its production process and product performance requirements similar to the general pulp etc. molding industrial packaging products, people usually put them into pulp molding industrial packaging products.
Of course, we can consider the depth development and application of industrial packaging products pulp molding areas still very rich, such as:
(1) medical equipment. Traditional medical equipment in the use of the biggest problems is not thoroughly disinfected, easy to form cross-infection. If the switch to a one-time pulp molding trays, spittoon, urinals, body pads, plywood, and so on, can not only remove disinfection links, saving artificial, and its waste can be burned directly, and non-toxic.
(2) military specialty packaging. Afraid collision of arms products, afraid of static electricity, fear of the damp, afraid of rust, transport and storage requirements higher. Molded Pulp buffer materials and good plasticity strong, and can be moisture-proof anti-static, anti-with special additives can be shallow radiation, the use of high safety factor.
(3) glass, ceramics and other brittle materials packaging. Such as glass, ceramics and other brittle materials at the pad, in the past more litter and grass alternative, neither standardized nor health, anti-damping effects of a less difficult. Molded Pulp pad at (tray) in producing simple, neat after molding easy packaging, shock absorption and cushioning ability. These products the main requirement for raw materials and technology, the cost and easy to control, suitable for large-scale production and application.
(4) the automobile industry. The various components for the automotive packaging, from the engine components, engine hood components to the sheet metal forming, molding products can be used to protect the pulp packaging. Some foreign companies have engaged in the field of pulp molding packaging has been more than 40 years.
(5) consumer goods. Photos from the framework to Shuchui stoves, in this respect abroad pulp molding packaging products is also developing.
(6) other areas. Such as children's toys, theatre props, human models, crafts at the end of the billet, noise materials, office products, household items, etc. may also have molded paper pulp products, recently, there are reports of foreign publications has begun development and production of pulp molding furniture and Molded Pulp (mechanical) components.
The packaging of the product diversity and complexity, when only one pulp molding products in the packaging structure can not meet the need, can be considered a hybrid packaging. Foreign countries have adopted a variety of separate structure packs.
At present, the existing domestic technology level, the thickness of the pulp molding products in roughly between 0.5 to 10 mm, the thickness of general products for about 0.6 to 2.5 mm from the current pulp molded packaging products and the quality of the application , the largest load carrying up to 200 kg. Take shape is not too complicated, in the 50 kg weight within the lining product packaging is the best option.
4, paper molding technology have improved propeller
Over the past several decades, both at home and abroad in their efforts to enhance and improve the paper propeller molding technology, the paper has been greatly propeller molding technology development. However, at present, there are still many problems, we have to solve the question, for example;
1, energy saving technology applications. Propeller molded paper products production, drying of the water used by energy costs, the total cost of approximately 40 to 50 per cent. If the embryo first wet moisture significant drop, we will be able to achieve energy consumption and energy consumption greatly reduced.
2, in the design and die design products, the use of advanced computer-aided design methods. The wide range of industrial products, thus packaging products used in the pulp molding mold often replaced, in order to shorten development time die abroad have adopted advanced 3D design software Pro / Engineer model, and through the data interface, the model - all to create software Master can'l NC code produced directly on the CNC machine tool processing mold.
3, manufactures die design standardization and modularization. Pulp molding products in the production of die cost is an important one cost. Attention to the pulp molding products design, apply a wide range of applications, standardized modules common good, simple design, and utilization of the die, die amortization costs will be greatly reduced.
4, a network technology. Application of non-network technology can reduce the mold manufacturing costs, reduced mold manufacturing time. At present, there are reports, pilot production using powder metallurgy technology Die porous substrate.
5, improve the internal structure of materials mechanical properties. Propeller molded paper products expand the application fields, the development of large, heavy items packaging.
5, looking for new fiber products, production methods, improved structural strength and buffer material properties. For example, pulp fiber foam technology development, such as dry molding.
7, pulp molding products, in-depth buffer structure and the relevant factors in basic theoretical research, develop products, design specifications.
8, the development of new types of production equipment. To a high degree of automation, energy saving, fuel-efficient, low scrap rate and the labor force in the direction of conservation. Construction equipment to the development of flexible, easy to improved mechanical properties, from low to high productivity can be continuously adjusted.
9, developed propeller molded paper products and equipment standards and improves the corresponding test means.
