Fabric nonwoven cloth fruit and vegetable preservative film series product

Abstract

The invention discloses a fiber non-woven fabric fresh-keeping film series of products for the garden stuff, which is characterized in that the production steps are as follows, choosing the chemical fiber non-woven fabric, the vegetable fiber non-woven fabric, the compound non-woven fabric of the chemical fiber and the vegetable fiber as the basis materials; making the monolayer or the compound layer into the coiled materials of the fresh-keeping film; making the coiled materials into the preservation bags, the plastic crates or the baskets, the wooden crates, the inner liners of the packing chests and the fresh-keeping tents with a plurality of shapes for the hoarding and the transportation of the garden stuff after the clipping, the heat-sealing and other treatments. The surface of the base material is first smeared with nanometer SiO2 emulsive dispersion liquid which is made up from a mixture of the silane coupling agent, the nanometer SiO2 and the water-soluble silicon oil, then dried in the air or parched at normal temperature, and then made into the fiber non-woven fabric fresh-keeping film series of products. The invention is sprayed or marinated with the bactericide and the antistaling agent before use. The invention is characterized in non-watertight, non-condensation and non-catchment, the air permeability can keep balance and conformity with the humidity, the temperature and the gas composition in the environment of a storehouse (a cellar and others), the fresh-keeping effect of the hoarding is good, and the application is extensive.

Description

technical field [0001] The invention relates to a series of fresh-keeping films for storage and transportation of fruits and vegetables, in particular to fresh-keeping films for fruits and vegetables (bags, inner linings of packing boxes or fresh-keeping tents) made of fiber non-woven fabrics. Background technique [0002] Existing fruit and vegetable preservation film (bag) mostly adopts polyethylene, polypropylene, polystyrene and other materials through blow molding or extruded glossy plastic film, and then made of single layer or composite plastic film bag by plastic film, its Although it has a certain degree of water retention and air permeability, the air flow is small, and the inner surface of the bag is prone to water condensation. The water is in contact with fruits and vegetables, the local humidity is too high, and it carries a large number of pathogenic bacteria, which infiltrates the surface of fruits and vegetables and easily causes the fruits and vegetables to...

AI Technical Summary

Problems solved by technology

This not only requires a lot of labor, increases labor intensity and labor costs, but also causes varying degrees of trauma to fruits and vegetables, which is not conducive to storage and preservation.

In particular, the water at the bottom of the bag cannot be discharged in time, forming a water collection, which makes the bottom layer of fruits and vegetables contact with the water collection for a long time, causing rot

At the same time, this kind of plastic film (bag) has poor air permeability, and the carbon dioxide and ethylene produced by respiratory metabolism cannot be released in time, and a high-concentration carbon dioxide and ethylene environment is formed in the film (bag), which leads to carbon dioxide poisoning of fruits and vegetables or ethylene ripening, and accelerates aging. Lose the fresh-keeping effect, and eventually cause the fruit and vegetables to rot

This kind of plastic film preservation bag is used in low-temperature storage and air-conditioning storage. Due to the poor air permeability of the film, the humidity between the large environment of the storage warehouse and the small environment inside the storage bag, and the concentration of carbon dioxide, oxygen, and ethylene are unbalanced, making it difficult for modern storage facilities. Advantage