Recycling of packaging waste--Recycling of waste wood packaging

Second, the recovery and use of wood packaging waste

Wood is one of the most important materials for packaging. Wood can be used to make various types of transport packaging containers and high-end sales packaging. The arbitrarily discarded large amount of wood packaging waste not only pollutes the natural environment, but also wastes valuable resources. The recycling and use of wood packaging wastes are usually recycled, mechanically or chemically treated.

1. Recycling and reuse of wood packaging

Recycling and reuse of wood packaging is the centralized recycling of waste wood packaging, and then returned to the manufacturer for the original product packaging method. This kind of recycling and reuse has three methods: fixed-point long-term supply, fixed-point timing recovery, and export bilateral agreement. Fixed-point long-term supply is suitable for manufacturers who provide products to other regions for a long time. Fixed-point timing recovery is suitable for product packaging with large circulation of goods and short circulation distance. The bilateral agreement on export is applicable to the packaging of export products through the establishment of certain bilateral agreements for packaging and recycling, so that used wood packaging can be recycled in transnational circulation.

Recycling and reuse of wood packaging is the preferred way to recycle and use wood packaging waste.

2. Mechanical or chemical treatment of wood packaging

Using mechanical or chemical treatment methods, waste wood packaging can be used to manufacture products such as flooring, fiberboard, self-lubricating materials, and amino wood.

1Manufacture of wood fiberboard

Wood fiberboard is a kind of wood-based board produced using wood scrap as a main raw material. Its manufacturing process includes preparation, fiber separation, fiber drying, fiber grading, rubber mixing, slab pavement, slab hot pressing, post-processing, surface processing and other processes.

2 production of self-lubricating materials

With the lignocellulosic inertness, the recycled wood packaging can be used to make heavy load self-lubricating parts and their constituent materials. At the time of production, the wood scraps are placed in an autoclave and subjected to vacuum treatment at room temperature to remove volatile components and moisture, and then the thickened motor oil or polymerization suspension containing the polymer is injected into the autoclave and then impregnated. The blanks are sent to a compression chamber and heated and pressed to re-arrange the polymers. The active material sinks on the surface of the particles and combines with lignin to form a monolithic material to obtain the desired properties. Wood composite materials have been widely used in electrical insulation industrial production. In addition, after the wood is impregnated with a preservative, it is also an excellent anti-biochemical corrosive material.

3 production of amino wood

Using the chemical activity of the chemical components contained in the wood, the wood packaging recovered can be chemically modified to produce amino wood. Under normal temperature and low pressure, the wood is reacted with ammonia solution or heated gaseous ammonia and pressed at a pressure of 100 to 300 kg/cm2 to obtain amino wood. This is an excellent new type of material with low production cost, strong resistance to biochemical corrosion, strength not only better than all wood, but also higher than bronze, and the price is only 1/10 of that of bronze. In addition, amino wood also has excellent milling, sawing, planing, cutting and other processing performance, not only for the production of parquet flooring and furniture, but also for the production of musical instruments, sports equipment, bushings, bearings, gears and so on.

4 Making Antique Simplified Banner

The wood packaging will be removed from the nails, iron and other debris, and made of small-size plywood 40cm, and then processed into 1cm wide plywood side strips, affixed to the cloth, and wood shutter doors the same product, with ash, The plywood strips with darker colors such as coffins and eucalyptus are similar to the ancient Chinese scrolls.

5 Preparation of molded products and modified polyvinyl alcohol plastic wood

The recovered wood packaging removes nails and other debris, and is made into sawdust, and then the dry sawdust is mixed with a certain amount of urea formaldehyde resin and a small amount of auxiliary agent ferric chloride, paraffin, etc., pre-pressed, hot-pressed, and filled in The prefabricated billet is once hot-pressed and the surface of the finished product is smooth and smooth, and can be sprayed directly for the production of watch cases, furniture and certain handicrafts.

If the above sawdust is mixed with polyvinyl alcohol, aggregating agent, epoxy resin and curing agent, plastic wood products can be made. Polyvinyl alcohol has good processing properties and wear, oil resistance, pressure resistance, toughness and other characteristics, but also has the bakelite high-strength wear and other physical properties.

(to be continued)

Dining Table And Chair

The dining table and chair combination in a restaurant refers to the combination of tables and chairs used for dining. According to different needs and styles, restaurant dining table and chair combinations can be classified into various categories. The following will classify and introduce common dining table and chair combinations in restaurants.
1. Classified by purpose
1) Dinner table and chair combination: mainly used in formal dining venues, such as high-end restaurants, banquet halls, etc. The combination of dining tables and chairs usually uses high-end materials such as solid wood, marble, etc. The chairs are generally equipped with soft cushions to provide a comfortable dining experience.
2) Fast food table and chair combination: mainly used in fast food restaurants, coffee shops, and other fast-food restaurants. The combination of fast food tables and chairs usually adopts a simple and practical design. The tables are generally small, and the chairs are generally made of plastic or metal materials, which are easy to clean and move.
3) Outdoor table and chair combination: mainly used in outdoor dining venues, such as outdoor restaurants, balconies, etc. Outdoor table and chair combinations usually use materials with special treatments such as waterproof and anti-corrosion, such as aluminum alloy, plastic, etc., which have the characteristics of durability and easy cleaning.
2. Classify by Style
1) Modern style table and chair combinations: Modern style table and chair combinations usually adopt a simple and streamlined design, emphasizing practicality and comfort. The combination of modern style tables and chairs is suitable for modern restaurants, cafes, and other places.
2) European style table and chair combinations: European style table and chair combinations usually adopt gorgeous carved and curved designs, emphasizing details and decoration. The European style table and chair combination is suitable for high-end restaurants, banquet halls, and other places.
In summary, restaurant table and chair combinations are classified based on factors such as purpose and style. Different classifications are suitable for different types and needs of restaurants, and choosing the appropriate combination of dining tables and chairs can provide a better dining experience and comfort for the restaurant.

Beach table, beach chair,dining furniture

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