Hemp fiber corner protector and preparation method thereof

Abstract

The invention discloses a hemp fiber corner protector comprising an L-shaped corner protector body which comprises a first protection edge and a second protection edge; the first protection edge and the second protection edge are connected and fixed together by long sides; the first protection edge is vertical to the second protection edge; and the corner protector body is prepared by preheating and cold press molding after mixing and knitting hemp fibers, composite fiber filaments and a non-woven fabric according to the weight ratio of (15-18):(15-18):(2-5). The hemp fiber corner protector disclosed by the invention is environment-friendly, pollution-free, light in weight, high in strength (4-8 times as high as that of a paper corner protector), wider in application range, recyclable formany times, free of humidity requirements during storage, easy to store, not prone to swelling caused by water absorption, incapable of affecting mechanical properties after being stored for a long time, high in strength, wide in application range, capable of saving energy and high in repeated utilization ratio.

Description

technical field [0001] The invention relates to a corner protector and a preparation method thereof, more specifically, it relates to a hemp fiber corner protector and a preparation method thereof. Background technique [0002] Most of the products will be packaged with packaging materials to protect the products before they leave the factory. For some cylindrical and cylindrical products, such as steel coils, etc., they need to be covered with a layer of round edges and corners when packaging. "L"-shaped corner protectors play the role of protecting corners. [0003] The existing corner protectors mainly include paper corner protectors and PVC corner protectors. Paper corner protectors are generally secondary use of pulp such as newspapers and paper scraps, which are re-treated in chemical pools and then dried for encapsulation. During the process, a large amount of garbage, heavy metals, toxic gases and other chemical harmful substances are discharged, which seriously pol...

AI Technical Summary

Problems solved by technology

Paper corner protectors are generally secondary use of pulp such as newspapers and paper scraps, which are re-treated in chemical pools and then dried for encapsulation. During the process, a large amount of garbage, heavy metals, toxic gases and other chemical harmful substances are discharged, which seriously pollute water sources and air; The product is easily affected by the humidity of the environment, and the packaging quality is affected by moisture and softening, and it is easy to be damaged and the secondary utilization rate is also very poor.

PVC corner protectors are formed by heated fluidized extrusion of PVC particle raw materials. PVC materials are susceptible to thermal decomposition and aging. Under the temperature of about 100 ℃, they will decompose and release toxic hydrogen chloride gas, which will cause discoloration and aging. At the same time, it is harmful to the environment and human body. Hazards: The toughness of the new product is acceptable, but the rigidity is poor, and it is prone to aging, yellowing and brittleness after a long time, which will greatly shorten the final service life; the waste degradation rate is slow and cannot be recycled, and the incineration discharge has certain pollution to the environment

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