Careful friends will find that most plastic bottles will have numbers and some simple patterns on them, so what do these numbers represent?
“01″: It is best to throw it away after drinking, heat-resistant to 70°C. Commonly used in bottled beverages such as mineral water and carbonated...
Newly bought plastic products sometimes have a strong or weak plastic smell, which is unacceptable to many people, so how to remove these smells?
1. Put it in a ventilated place and let the sun dry. Some of the flavor will be removed, but it may turn yellow.
2. Clean the inside of the cup with de...
I went back to my hometown two days ago, because I used the cross-cut method my mother never used to tie the plastic bag, which made it difficult for my mother to open it for a while. In the end, my childhood with the plastic bag was complete,,,
There are many ways to tie plastic bags, and almost...
Now everyone is advocating garbage classification. Garbage classification refers to the general term for a series of activities in which garbage is sorted, stored, placed and transported according to certain regulations or standards, thereby turning it into public resources. So what kind of garba...
Whether we go to a breakfast restaurant or order takeout, we often see this phenomenon: the boss skillfully tore off a plastic bag, then put it on the bowl, and finally put the food in it quickly. In fact, there is a reason for this. : Food is often stained with oil. If it needs to be cleaned, it...
Is plastic a conductor or an insulator? First, let’s understand the difference between the two: A conductor is a substance that has a small resistivity and conducts electricity easily. An insulator is a substance that does not conduct electricity under normal circumstances. The characterist...
Are our common plastics crystalline or amorphous? First, we need to understand what is the essential difference between crystalline and amorphous.
Crystals are atoms, ions or molecules that are arranged in space according to a certain periodicity to form a solid with a certain regular geometric s...
The different properties of plastics determine its use in the industry. With the advancement of technology, research on plastic modification has not stopped. What are the main characteristics of plastics?
1. Most plastics are light in weight, chemically stable, and will not rust;
2. Good impact r...
Paper has good elasticity and toughness, which can provide good protection to the packaged material; paper is not affected by heat and light, such as health food and medicine, paper is a traditional packaging material, and it is especially suitable for people who want to get natural Those product...
Food packaging paper is a packaging product with pulp and cardboard as the main raw materials. It needs to meet the requirements of non-toxic, oil-resistant, waterproof and moisture-proof, sealing, etc., and the paper used for packaging food that meets the safety requirements of food packaging. B...
Achromatic colors have the same psychological value as chromatic colors. Black and white represent the yin and yang poles of the color world, black means nothingness, like eternal silence, and white has endless possibilities.
1. Black: From a theoretical point of view, black means no light and i...
Dispersant is a commonly used auxiliary agent in toner, which helps to wet the pigment, reduce the particle size of the pigment, and increase the affinity between the resin and the pigment, thereby improving the compatibility between the pigment and the carrier resin, and improving the dispersion...
