Barrier tray is helpful in home use

How to identify new and old plastic products? : smell, look, color, weight

Tell everyone how to distinguish between old and new plastic products. Some of the plastic products such as washbasins in daily life are recycled materials extracted from waste plastics. Waste plastic processing is very particular, it needs to be cleaned, sorted and disinfected, and some small workshops are simply broken and treated, which is very harmful. In general, disposable plastics are not allowed to be in direct contact with the skin, utensils related to eating, toys for children, etc. Yantai Customs inspected the customs officers to teach you five moves to identify the original plastics and recycled materials processed from waste plastics:

1. Smell the smell, the original plastic has aroma, and the recycled plastic has an unpleasant smell.

2. Look at the color, the new plastic color is more pure, the purity is high, while the old plastic is mostly dark color, the color is not correct. Simply put, the general transparent is the raw material, the recycled material is not transparent, many colors are mixed together, black is the main color.

3. Look at the toughness, the toughness of the original material is good, the chair is made of good load, the washbasin is made to fall, and the toughness of the recycled material is poor, brittle and easy to break. In particular, waste plastics that have been recycled many times are more susceptible to aging.

4. weight, the same size of plastic products, generally new plastic is relatively light, waste plastic is relatively heavy.

5. Markets, general large supermarkets, regular shopping malls, plastic products are relatively reliable, roadside shops and low-priced small commodity market stalls, be careful when buying.

Many large home appliances are packaged with the upper and lower parts of the package secured with hard packaging, and the exterior uses a high-strength transparent plastic film. In recent years, vacuum blister packaging in China began to be used for the packaging of small electrical products. When the film is heated and softened to a certain degree, the vacuum chuck table is pushed up by the compressed air so that the packaged product comes into contact with the film with the magnetic side of the software, and the vacuum chamber valve is opened at the same time. Depending on the size of the product and the needs of each manufacturer, 3 to 5 products can be placed in a single box..

Go, fold up the corrugated paperboard after growing up to grow into the box shape, stick the interface of the packing box with the tape, namely form the packaging. In recent years, with the development of commodity packaging in the direction of mechanization and automation, manufacturers of thermoforming packaging machinery have developed rapidly. At this point, the air between the product and the film is sucked into the vacuum chamber through the vacuum hole, so that the hot sticky side of the film is tightly adsorbed on the product and the pallet, and then the outer surface of the film is cooled by the fan to cut the excess edge material. The working principle of the vacuum blister packaging is that the thermoplastic composite plastic film is heated and softened by the infrared heating plate, and a prefabricated corrugated cardboard is placed on the vacuum suction table, and the packaged electrical product is placed thereon. Many small household appliances, such as burners, DVDs, EVDs, etc.The main advantages of vacuum blister packaging are: saving raw and auxiliary materials, light weight, convenient transportation, good sealing performance, meeting the requirements of environmental protection green packaging; capable of packaging any special shaped products, packing without additional buffering materials; plastic cutlery manufacturers packaged products being transparently visible , Beautiful appearance, easy to sell, and suitable for mechanization, automatic packaging, easy modern management, save manpower, improve efficiency. The protection of packaging materials such as top protection, top protection, and bottom protection has enabled them to comprehensively reflect environmental protection, cost, and business promotion, and has opened up new ways to reduce packaging.

With the rise of plastic flexible packaging, vacuum plastic box packaging is more widely used. Equipment manufacturers., have been packaged in vacuum blister packaging. Vacuum blister packaging is carried out on special packaging machinery. There are many professional vacuum blister packaging at home and abroad. Although the structural form of the blister packaging machine is different, the principle is basically similar. They are aimed at products that only need to protect their edges and corners, and do not need to be packaged in whole, and use paper profiles as their edge protection and corner protection

Its puller and sender adopt electric and speed reducer, time relay, intermediate relay, and trip switch and other electrical appliances to form a fully automatic control system. Its main structure is composed of feeding, drawing, upper and lower electric heating furnace, lower gate, multi-functional adjustable size, lower mold plate, upper mold, upper gate, knife gate, slicing, putting piece and equip with vacuum device; Pneumatic device is the main power source. The machine is classified into a tunnel shrinking machine, an oven shrinking machine, a box shrinking machine and a gun shrinking machine according to the type of the machine. Blister molding, also known as thermoplastic molding, is the use of the vacuum pump vacuum suction will heat softened after the PVC, PET, PETG, APTT, PP, PE, PS and so on.

The product is put on the shrink packaging film, and after sealing, it enters the shrink packaging machine, and the product shrinks automatically.Blister packaging machine (also called thermoplastic molding machine) is a machine that adds heat-plasticized PVC, PE, and other thermoplastic coils into various shapes of high-grade packaging boxes, boxes and other products. After the product is heated by a blister packaging machine, the film shrinks and the Plastic Plate Bowl product is wrapped. The heat shrinking packaging machine consumes Low power consumption, the average power consumption per hour is only 2.. The automatic blister packaging machine uses far-infrared radiation to heat all kinds of film directly, and the product is conveyed to the shrinking furnace through the conveyor belt.1KW, achieving perfect shrink packaging effect, never affecting the packaging, electronic continuously variable transmission, solid state regulator temperature control, stable and reliable, used in food, beverage, candy , cultural goods, hardware tools, daily necessities, chemical supplies and other shrink packaging.

The requirements for the control system of the plastic machine are to ensure the convenience of operation, high precision of mechanical action and temperature control, short production time, and to save mechanical power consumption as much as possible under the same production conditions. Divided into daily necessities blister packaging, hardware blister packaging, auto supplies blister packaging