Farmers choose their own film to pay attention to indicators

Cold insulation performance

Replace the film, avoid blindly choosing low prices, promotional items. The price of blindly pursuing low-price film is to replace the new film every year. With manpower and material resources, the cost is not low, and the total cost of the integrated film is not much cheaper. Therefore, it is best to choose durable, high quality, high efficiency, increased thickness and tensile strength of the film.

Covering such a shed film, the temperature in the deep winter festival can be 2° C. to 3° C. higher than that of the conventional shed film. Do not underestimate the temperature difference of about 2 °C, practice has proved that when the snow falls in winter, the greenhouse temperature is 2 °C higher, vegetables can safely winter.

Tearing strength

Tear strength refers to the transverse and longitudinal tensile strength and toughness of the film. Tear strength of the film, winter and spring snow and strong wind will not cause it to tear or tear light.

Light transmission performance

In the winter and spring seasons in our province, the weather is very dusty. With haze and more weather and high humidity, the shed film will be covered with a layer of dust. If it is a light-permeable film, the surface is smooth and dust-free, or it is very clean after being washed with rain or snow. Transparency directly affects the light intensity and temperature of the greenhouse.

Droplet atomization performance

The film is divided into drop film and drop film. The quality of the high-quality filming of the film is good, and no mist is formed in the shed. When the humidity is high, the water vapor flows down the film along the film and back to the ground, and the mist elimination function is excellent. At the same time pay attention to the shed, the good shed film has positive and negative points, do not reverse the anti-fog layer to the outside.

With the increase of labor costs and the shortage of manpower, vegetable growers have increasingly favored thickening, toughness, and good antifogging insulation films, which is also the basic guarantee for safe wintering of vegetables.

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