Packaging bag

Abstract

This invention relates to a packaging bag. The packaging bag is made of an envelope of at least one enclosing element made of polymer material and the envelope includes a plurality of perforation holes at least on a part of the enclosing element. The packaging bag is especially suited for accommodating goods which have damageable surfaces and require air ventilation. Such goods may be agricultural products.

Description

[0001]This application is a National Stage application of International Application No. PCT / EP2008 / 010043 filed on Nov. 26, 2008.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]This invention relates to a packaging bag. The packaging bag is made of an envelope of at least one enclosing element made of polymer material and the envelope includes a plurality of perforation holes. The packaging bag is especially suited for accommodating goods which have damageable surfaces and require air ventilation. Such goods may be agricultural products.[0004]2. Description of the Prior Art[0005]Packaging is a crucial element in almost all industries where goods have to be transported, stored or presented. One of the most commonly used forms of packaging is the bag. Therefore there exist a vast number of types of packaging products in form of bags, optimized for the various applications.[0006]The variety is stretching over all characteristics of the bags like the materials e.g. natur...

AI Technical Summary

Benefits of technology

"The present invention is a packaging bag that combines the benefits of traditional bags with the advantages of mesh bags. The bag has great elasticity, resistance to rupture and wear, and an aesthetic appearance. It allows air circulation while keeping the packed goods cool, and it provides a ventilation need while keeping the good's humidity. The bag is made of a flexible polymer film that does not damage the packed goods and is recyclable. The bag has perforation holes that offer superior preservation, transport, and storage of the packed goods. The openings of the perforation holes have a rounded shape to prevent tearing or peeling. The bag can be used for packaging a variety of goods and is especially useful for agricultural products. The envelope of the bag is made of a polymer film that is soft and does not damage the packed goods. The bag offers visibility to its interior through the perforation holes. The polymer film used for the bag has properties that can be tailored to the specific needs of the application. The perforation holes can be created using various processes such as electrical discharge perforation, laser perforation, stamping perforation, hot stamping perforation, or hot needle perforation."

Problems solved by technology

Such bags do not allow adequate air or cooling circulation in their interior, resulting in the poor preservation of the packed foods.

The same situation occurs in case of increased heat that may be trapped inside the bag and spoil perishable agricultural products.

However, meshes present significant disadvantages, since the mesh is in contact with the packed good.

Goods that are in direct contact with the mesh rub against the hard yarn and their outer surface is often destroyed.

In many cases, rubbing also causes an aesthetic and cleanliness problem, as in the case of onions packed in mesh bags.

The mesh destroys the skin of onions that falls off and litters during transport or storage of the mesh bag.

This problem is not limited to food, but applies to every good having surfaces that can be scratched are damaged by the mesh material.

However closed surface bags have the disadvantages, such as the non-visible good condition.

Additionally mesh bags cannot be used for small goods, which would fall through the mesh.

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