Packing belts are widely used in various industries such as packaging and printing, electronics, food, logistics, etc… At present, the packaging belt market can be divided into new belts, all plastic belts, core belts and calcium carbonate packaging according to different price grades. Belt and so on. How to distinguish it, here are a few simple ways.

How to distinguish between “new belt” and “all plastic belt”
First, let’s teach you the difference between a new belt and a full plastic belt. The so-called brand new belt is made of 100% virgin plastic material, which has the best performance but the most expensive price. The plastic belt is also made of 100% plastic, but all or part of the material is recycled plastic.
Suppliers say that the packaging belts they produce are made of new materials. So, how do you distinguish whether the packaging belts are made of new materials?
Distinguish from the appearance. The packing belt made of new materials is more beautiful, the material is transparent and the color is even. For example, we can put a piece of paper on the desktop and put it on the paper with a new piece of material, then we can clearly see the words under the strap, and the strap with recycled material is not. This effect.
Second, distinguish from the feel. The strapping belt made of new material has good rebounding force and good straightness and thickness. We can take 100% of the new material to make the packaging belt and compare it with the packaging of the doped recycled material. Use the finger to stretch the feeling in the opposite direction. It can be found that the 100% new material is very strong, and the recycled material is very strong. The straps made are not stiff enough, so the resilience is not so good.
Again, using the experiment to identify, the best way is the fire method. The 100% brand new material is not irritating when burned with fire, and the residual ash is crystalline. The bale with doped recycled material will have an unpleasant irritating odor when burned, and the residual ash has other substances such as lime.
How to distinguish between "core belt", "calcium carbonate packing belt", "all plastic packing belt"
In addition, the recycled material packaging tape is usually divided into three types: core belt, calcium carbonate packing belt, and all-plastic packing belt. Now the “packaging zone” micro-editing teaches you how to distinguish by fire method:

Ii. Calcium carbonate packing belt, as shown in the following figure: The calcium carbonate packing belt also produces smoke during the burning process, and the relative enveloping smoke is small. The burning material left after the full combustion also has white powder, and the burning material has no plastic linearity. Characteristics, can not be drawn, from the proportion of white powder can be seen that its composition also contains impurities, the proportion of impurities containing less than the core belt;

Iii. All-plastic packing belt, as shown in the following figure: The whole plastic packing belt has clear flame during combustion, no obvious smog, no strong pungent odor, and volatilizes the faint oil smell. After burning, there is no foreign matter left over by burning. Impurities, all of which are crystalline transparent solids, and the combustion products exhibit plastic linear properties and can be drawn.

2, the appearance method

For factories that cannot raise fire, the appearance method can be used for preliminary judgment. The specific method is as follows:

a, the core material of the core strip can be seen from the following tear surface cut pattern, the thin plastic layer is wrapped with most of the lime powder core (lime powder is calcium carbonate powder), the wireless performance of the tearing mouth is reflected, and tearing The crack is uneven, and the strap is bent by hand. The recovery performance is poor and the hardness is small. This belt is the lowest grade packing belt. The ratio of the plastic raw material to the calcium carbonate content is about 30%: 70%, and the raw material cost is low.

b. The material of calcium carbonate packing belt can not see obvious impurities from the tearing surface, and the tearing mouth is better than the linear performance of the core strip. Compared with the tearing opening of the core belt, the wrapping tape is bent by hand. Its recovery performance is slightly stronger than the envelope, and the hardness is relatively large. This belt is slightly higher than the quality of the core belt. The ratio of plastic and carbonated powder is about 60%: 40%, and the cost of raw materials is relatively low.

c. The material of the all-plastic packing belt can be seen from the tearing surface of the following figure. The linear property of the tearing mouth is good, the tearing mouth is neat and uniform and no impurities are observed. The belt is bent by hand, and the recovery performance is excellent and the hardness is strong. This packing belt is a high-grade packing belt made of 100% plastic raw material.

3. Proportion method

This method is based on the principle that the specific gravity of PP plastic is lighter than water and floats on water.

P all-plastic strapping is 100% all-plastic, its specific gravity is lighter than water, so it floats on water, and the carbonated packing belt and the core belt contain calcium carbonate impurities, which make it heavier than water. Therefore, both the core strip and the carbonate strip are submerged in water, so that it is actually possible to identify the approximate ratio of the plastic components contained in the strap.

The above are several ways to identify the packaging of various materials, and there is a more complete identification method than this? If you find it useful, transfer it to a friend who needs you.