Introduction of improper use of plastic wrapping film
We are familiar with plastic wrapping film. Some of the hazards of it are more or less known. In order to let everyone know more about it, we will share with you the small film of the wrapping film. If you use it improperly, it will bring us Some hazards come, I hope to attract everyone's attention.
The use of plastic film in agricultural production is basically plastic greenhouse vegetables. The whole production process of vegetables is almost inseparable from plastic film. Plastic film brings economic benefits to agricultural production, but it also causes inevitable harm.
First, destroy the soil structure. After the agricultural film fragments enter the farmland, the structure of the soil is changed, the soil productivity is reduced, and the crop yield is reduced.
Second, the plastic film remaining in the soil is not conducive to the exchange of soil moisture and gas, the barrier of plastic debris is not conducive to the normal growth and development of crops.
Third, affect the survival of microorganisms in the soil. The decomposition of plastic film in the soil is a long process, which will decompose and detonate many harmful substances, affecting the survival of microorganisms.
Fourth, however, the most serious is that the harmful substances generated by the decomposition process of the plastic film will contaminate the groundwater, and improper handling may even cause secondary pollution of the environment!
Q: Is it possible to get sample before place order?
A: Yes, sure, for quality & material checking, stock samples without customized printing can be provided freely at your courier account. We will be happy to send you free samples.
Q: How long does it take for sample production time?
A: 1 day for existing samples. 5-7 days for customized samples.
Q: How is my order shipped? Will my bags arrive on time?
A: By sea, by air or by express carriers (UPS, FedEx, TNT) transit time depends on freight rates.
What is the winding film in the end?
Stretch film, also known as stretch film, stretch wrap film, heat shrink film, the first in China to use PVC as the substrate, DOA is a plasticizer and self-adhesive to produce PVC stretch film. Due to environmental problems, high cost (relative to PE ratio, small unit packaging area), poor stretchability, etc., when the domestic production of PE stretch film began to be phased out in 1994-1995. PE stretch film is yiEVA as self-adhesive material, but its cost is high and taste. After development, PIB and VLDPE are self-adhesive materials. The substrate is now yiLLDPE, including C4, C6, C8 and metallocene PE (MPE). ).
Early LLDPE stretching i blown film is much, from single layer to second layer and third layer; now LY casting method mainly produces LLDPE stretch film, which is because the casting line has the advantages of uniform thickness and high transparency. Suitable for high-rate pre-stretching requirements. Since single-layer casting does not achieve single-sided adhesion, the application field is limited. Single and double-layer casting does not have three layers of casting in the material selection, and the formulation cost is also high. It is ideal for the three-layer co-extrusion structure. High-quality de-stretch film should have high transparency, high longitudinal elongation, high yield point, high transverse tear strength and good puncture performance.