Closed permeating waterproof fruit film bag

Abstract

The present invention discloses one kind of closed permeating waterproof fruit film bag. The polyolefin film bag is prepared with LDPE polyolefin resin, LLDPE polyolefin resin or PP-polyolefin copolymer resin, calcium carbonate or talcum powder, coupler, modifier and dispersant as materials in a special plastic film bag making machine. It is provided with one tying rope in the mouth.

Description

technical field [0001] The invention relates to a protective film bag for fruit growth, in particular to a fully-enclosed highly air-permeable waterproof film bag for fruit made at one time by a special plastic film bag making machine for fruit. Background technique [0002] In the high-temperature and high-humidity areas in the south and north of my country, high-quality fruits, such as apples and golden pears, are cultivated. To make the surface smooth and free from fruit rust, the biggest problem is to solve the contradiction between "water and air". That is, the rainwater and pesticides outside the bag cannot enter the bag, and the physiological water and condensed water of the fruit in the bag must evenly leak out of the bag, otherwise the temperature and humidity inside the bag will be too high, which will affect the quality of the fruit. At present, the existing fruit bagging is divided into two kinds of materials: 1. paper material (fruit fruit paper), the fruit bagg...

AI Technical Summary

Problems solved by technology

Compared with the existing air-permeable and drainage holes processed on the film, the pore diameter and hole distance used in this patent are smaller. On the one hand, the processing equipment is expensive, which greatly increases the production cost

On the other hand, the processing is difficult and the operation is complicated. It is difficult to realize the microporous film with such a hole distance and pore size by mechanical punching, and it cannot be popularized and applied. The produced physiological water is discharged, but the uniformity of the removal process cannot be achieved, and the generation of fruit rust cannot be completely and effectively prevented. Under the influence of different characteristics such as climate and fruit, the quality of the fruit cannot be effectively guaranteed, and due to the use of punching The method affects the stretchability of the fruit bag, and it is easy to break, so that the bag is often broken during use, which affects the high-quality rate of the fruit

Images