Manufacturing method of agricultural cold-proof cloth

Abstract

The invention relates to a manufacturing method of agricultural cold-proof cloth. The agricultural cold-proof cloth is composed of at least two layers of non-woven cloth, wherein each layer of non-woven cloth is manufactured by mixing PP matrix resin, polyvinylidene fluoride, an MAH-g-PP compatilizer, pigment master batch and an anti-aging additive, and the agricultural cold-proof cloth is manufactured through feeding, high-temperature melting, filtering, metering by a metering pump, spinning, cooling, up-down stretching, web curtain conveying and hot rolling. The non-woven fabric of different layers are formed through sequential drawing and polymerizing of different lower stretchers in a conveying direction of a web curtain, and the drawing arrangement directions of the non-woven fabric of different layers are intersected on a doffing plane of the web curtain; finally, the obtained non-woven fabric of different layers are laminated and adhered together to form the degradable agricultural cold-proof cloth, and the degradable agricultural cold-proof cloth has the characteristics of the non-woven fabric, can well protect crops and fruit trees, and is beneficial to the growth of the crops and the fruit trees; and the product is tear-resistant and uniform in thickness, the usability of the product is improved, and the service life of the product is prolonged. The preparation process is simple, reduced in production cost and is suitable for industrial mass production.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to agricultural cold-proof fabrics. Background technique [0002] Non-woven fabric is a kind of fabric formed without spinning and weaving. It is just oriented or randomly arranged textile short fibers or filaments to form a web structure, and then reinforced by mechanical, thermal bonding or chemical methods. With the development of agricultural technology, people gradually realize the important role that agricultural cold-proof cloth plays in the protection of crops and fruit trees. At present, some areas use paper or PE-based cold-proof cloth. It will get wet, and it will be destroyed when it is wet by rain in relatively severe rainstorm weather, and it will not be able to play the role of cold protection. The cold cloth made of PE is difficult to degrade, causing serious environmental pollution, affecting the soil structure and thus affecting the growth of crops and t...

AI Technical Summary

Problems solved by technology

With the development of agricultural technology, people gradually realize the important role that agricultural cold-proof cloth plays in the protection of crops and fruit trees. At present, some areas use paper or PE-based cold-proof cloth. It will become wet, and it will be destroyed when it is wetted by rain in relatively severe rainstorm weather, and it will not be able to play the role of cold protection.

The cold cloth made of PE material is difficult to degrade, causing serious environmental pollution, affecting the soil structure and thus affecting the growth of crops and the absorption of soil nutrients.

Afterwards, cold-proof cloth in the form of non-woven fabric appeared, but due to production defects, the cold-proof cloth in the form of non-woven fabric currently on the market has insufficient transverse tear resistance and uneven thickness, and is easy to tear, which affects the usability and service life of end products.

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