Plastic bags for the safe use of method

Although countries have already banned the use of plastic bags, but a wide variety of plastic products is still everywhere, we will reach nearly every day.

But many of us do not know, in fact, each of the different materials for plastic products has its range of use, beyond this range in use, it will have on our health. Then how should we distinguish these plastics material and use range? then you must pay attention to the little plastic products.

Recycle logo is a health card

Experts, plastic recycling logo is a triangle symbol, usually in the bottom plastic container.

Triangle inside a 1 to 7 digits, each digit represents a different materials, recycle logo in different number indicates that the product is a resin, if the product is composed of several different materials, the indication of the main products are, the basic material. Allegedly, this sign originated from the United States. Now this method has been shown, including my own, many States accept and references. In our country, plastic products labeled recycling logo is optional, some formal large brand enterprise in order to facilitate the recycling of plastic products, recently have begun tagging recycle logo. Dong said that although this logo is primarily intended to facilitate recycling, but consumers can also be identified by the know which plastic products is made by what, in what circumstances should be used.

Different materials for different conditions of use

Plastic products, at the bottom of this small collection ID is just like every little plastic containers, their identification cards make use of different materials, there are different.

"01" — PET (polyethylene terephthalate)

Mineral water bottles, soda bottles are made of this material.

Dong said, drink bottle can not be used with hot water, this material resistant to 70 ° c, only suitable for assembling warm drink or a cold drink, high temperature liquids or heating is easily deformed, with harmful substances dissolving. Furthermore, the scientists found that this plastic products 10 months later, may release a carcinogenic, toxic to the human body. Therefore, bottles, etc. run out on lost, not to be used as a water container, or used to make storage containers contain other items, so as not to cause health problems.

"02" — HDPE (high-density polyethylene)

Installation cleaning products, bath products in plastic containers, supermarket and shopping mall in the use of plastic bags are made of this material, resistant to high temperature, with 110 ° c for food use of plastic bags can be used to dress up food.

Installation cleaning products, bath products in plastic containers can be reused after cleaning, these containers are usually not good cleaning residues existing cleaning products, become a hotbed of bacteria, cleaning is not complete, it is best not to recycle.

"03" — PVC (polyvinyl chloride)

According to reports, this kind of material of plastic products is easy to produce toxic and harmful substances from two parts: one is the production process is not completely polymerization of vinyl chloride of single molecules, plasticizer contaminates.

Both of these substances in the face of high-temperature and precipitation, fats easily when toxic with food enters the body, easy to cause cancer. Currently, the material of the container is less used for packaging food. If you use, do not let it heat.

"04" — LDPE (low density polyethylene)

Fresh-keeping film, plastic film, and so on are all this kind of material.

Heat resistance is not strong, typically, qualified PE fresh-keeping film at temperatures above 110 degrees centigrade hot melt phenomenon occurs, leaving some of the human body cannot process of plastic products. And, with fresh-keeping film wrapping food heating, food grease can easily be fresh-keeping film hazardous substances dissolved in it. Therefore, food in a microwave oven, first remove the wrapped fresh-keeping film.

"05"-PP (polypropylene)

Microwave meal boxes with this material, resistant to high temperature of 130 ° c, transparency, this is the only can be placed into the microwave oven's plastic box, after careful cleaning reusable.

It's important to note the number of microwave meal boxes box to 05, PP manufacturing, but the cover has to 06, PS (polystyrene)), PS transparency is good, but not the high temperature, it is not possible with a box and put it in the microwave oven. To be on the safe side, container placed in the oven, put the lid.

"06" — PS (polystyrene)

This is used in the manufacture of bowls noodle boxes, foam material snack box.

Heat and cold again, but you cannot put it in the microwave to avoid overheating and release of chemicals. And cannot be used to contain strong acids (such as orange juice), strong alkaline substances, due to the decomposition of the human body is not good for polystyrene. Therefore, you should try to avoid using the snack box packaging hot food.

"07" — PC and other class

PC is the large-scale use of a material, especially used in the manufacture of bottle, glass, etc., because the space containing Bisphenol A and controversial.

Experts point out that, in theory, as long as the production of PC, Bisphenol A hundred into plastic construction, it indicates that the product has no Bisphenol A, much less released. Simply, if there is a small amount of Bisphenol A has not translated into PC plastic structure, it may be released into the food or drink. Therefore, when using the plastic container is to be noted.

PC residues of Bisphenol A, the higher the temperature, the release of the more speed it sooner.

Therefore, should not be PC bottle bowl of hot water. If your water bottle number 07, the following methods to reduce risk: use no heating, not in direct sunlight. Not dishwasher, baking Bowl clean water bottle. Before the first use, the use of sodium bicarbonatePowder and warm water washing, drying at room temperature in nature. If the container has no hurt or distress, we recommend that you stop using, because plastic products surface if there is a small, easy to hide the pit. Avoiding repeated use of the apparatus has been aging for plastics.

(Edit: Justin Lin, internships)