Sunshade net is an important auxiliary material in the process of planting management, and its quality is directly related to the production cost and labor cost of farmers. The quality of sunshade nets on the market is uneven, so how to identify its quality?
In fact, whether it is a plain or knitted sunshade net, it can be called a good sunshade net if it meets three goals:
First, strong tensile strength; Second, good shading rate; 3. Long service life.
In daily life, there are many misunderstandings in the purchase of sunshade nets by farmers:
Some friends say: sunshade nets are purchased by weight, so that manufacturers can't fake, which is actually wrong.
As we all know, can copper and iron be weighed at the same price? A sunshade net of the same area, if it is produced with recycled materials doped with many other materials, feels cost-effective from the weight, but the service life and shading rate of the sunshade net are greatly discounted. On the contrary, if the manufacturer uses a sunshade net produced by a new material, the same area weight will be much lighter, but the shading rate will be high, and the service life will be greatly increased.
How to distinguish the quality of sunshade net?
One, look. The new material sunshade net is rich in black and bright luster, which can reflect the stars in the sun, and each flat silk can be evenly opened. The recycled sunshade looks grayish black or dark, without any gloss, and each piece of flat silk is half-closed or folded together like a dry willow leaf hit by frost.
Two, touch. A good
sunshade net feels smooth and elastic, and the monofilament has telescopic elasticity when pulled by hand, which is difficult to pull off. Re-raw material hand grip hard slightly prickly hand, friction sound is obviously larger than the new material.
3. Smell. When the recycled material is just unpacked, there is a pungent sea smell or foul smell. The new material is different, almost no special taste, is very pure plastic taste. If we can master these methods, it is easy to distinguish the quality of the sunshade net.
In addition, some friends will ask: the
sunshade net I bought is cheap and durable, and has been used for several years. Here I explain, can only say that you are lucky, in fact, there are also some good raw materials, no exposure and corrosion, but it is difficult for manufacturers to grasp the difference in quality, just like we see steel, steel plate in the scrap iron acquisition station, but there are also iron sheets and some other doping substances, if they are mixed together, each batch of recycled materials have changes, it is difficult to ensure quality.
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