Brief introduction of the hottest foreign developm

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A brief introduction to the development of substitute wood packaging abroad

substitute wood heavy packaging in developed countries, including the use of high-strength multi-layer (double arch) corrugated boxes (box Department); Non wood products tray (seat part); Protection and maintenance of edge and reinforcement repeated zigzag testing machine 1. Carefully browse the application before operation, and clarify the application of corner, bottom and top reinforcement structural materials and the application of non lignified materials used as partitions, cushions, filling buffers, positioning, protection, auxiliary materials (combined filling parts), etc., which entered the commercial application stage as early as the mid-1980s. But up to now, a certain amount of fumigated and antiseptic wooden boxes and packing boxes made of processed wood products such as plywood are still used. Its technology and equipment are of high level

for small and medium-sized substitute wood cartons, three corrugated cardboard (usually seven layers) is generally used, which can be made into heavy-duty packaging boxes through automatic production lines, which are fixedly connected with wooden pallets at the bottom of the box (in recent years, paper pallets and non whole wood composite pallets have been gradually used). As early as the 1950s, foreign countries had a patent for the structure of combined heavy-duty cartons and the use of octagonal clip pads and large square head self tightening screws to fix the bottom of the box and the seat (tray). In the early and mid-1980s, Japan introduced packaging boxes, which can be packed with "special skills"; 1035 rdquo; Plan, flat and wide heavy items, as well as castings, electromechanical products, etc. As for the overweight large substitute wood packaging, the composite or introduction of super strong multi-layer corrugated board is adopted: the digital display wood-based panel experimental machine adopts the combined structure of exchange servo electromechanical loading, electronic measurement and digital speed regulation. For example, Rexam company of the United States uses two three tile and seven layer corrugated cardboard to stick together to make and form a 14 layer overweight corrugated cardboard box, which can bear large Ford Trucks with a load of more than 7.5 tons

in 1998, the total output of corrugated board in the United States reached 40.33 billion square meters, with a total sales value of 19.53 billion US dollars, of which 0.5% to 0.6% were corrugated boards with more than three tiles and seven layers, and the output reached 222million square meters. This figure itself shows that there are not a few, but a considerable number of American carton factories making heavy paper packaging boxes. The production speed of its seven layer line is 155 meters/minute, and it runs automatically

in heavy-duty packaging cartons, some are made into angular prism shapes, and some are first made into octagonal shallow plate-shaped bottom and cover, and then use adhesive structure to form heavy-duty packaging containers. This avoids the fracture of multi-layer ultra thick paperboard when the pressing line is folded into a box to form a right angle. This large container box in Japan weighs 3.45 tons of plastic granular materials (the size of the box is 2.5 meters in diameter and 3 meters in height)

there is also super rigid high-strength multilayer corrugated board with staggered bonding in the vertical direction of corrugated, which overcomes the difference in the direction of comprehensive strength indicators and has the advantage of complementary phase strength. It is used to make the bottom plate of heavy packing box or tray

honeycomb paperboard

it is very practical as a liner and partition in heavy-duty packaging boxes, as a wall panel material for load-bearing reinforcement in cooperation with the inner wall of boxes, and in making all paper pallets. There is a certain market for the waterproof honeycomb paperboard all paper pallets produced by NACO and ixca LIBOR pallets group, as well as the cushioning protective packaging materials used as box corners and bottom. In foreign countries, it is rare for honeycomb paperboard to be made into packaging cartons. Israel uses honeycomb cardboard with a thickness of 8-10 mm to make packaging boxes for cigarettes, jade and porcelain, and its packaging equipment and process are similar to the processing equipment and process of corrugated boxes. It is not so easy to use the new processing technology of thick honeycomb paperboard for industrialization. Like the production of honeycomb paperboard, some links are not easy to be connected into automatic lines, and high-speed production cannot be carried out. This is obviously not suitable for "low profit" carton enterprises

nevertheless, the speed, performance and product quality of foreign honeycomb paperboard production lines are higher than those of domestic equipment, so the price is very high. The price of the honeycomb paperboard production line of LMA engineering company in Israel is $1.1 million; The asking price of American OMS company is 1.2 million US dollars; Dutch hollyson company offers 20million yuan. Other foreign companies also have such production lines available, such as honeycomb paper technology companies in Japan, the United Kingdom, Finland, and the United States

Daimu pallet

Daimu TOEFL has honeycomb cardboard pallet, pulp molding pallet, paper filled pallet, plastic pallet, metal pallet, etc., which has a history of more than 20 years abroad. Therefore, there are production lines of various pallets (also known as seats or pallets) for the market to choose from

metal corner guards, box mouth clips, fixing accessories of box bottom and tray and hardware used for the reinforcement of heavy cardboard boxes have been developed abroad for 30 or 40 years, and have been improved for many times. Octagonal clip gaskets and large square head self tightening screws patented in the United States in the 1950s are still used in some places. (end)

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