- air permeable film -
* Air Permeable(Breathable) Film
Outline and Penetrance of Air Permeable(Breathable) Film
■ Product Features
-Plant respiration is common in photosynthesis, but when it does not reach the light or after harvest it drinks oxygen and generates carbon dioxide.
In this way, it can be said that the cause of the drop in freshness in the process of distribution and storage is due to consumption of body components by respiration and evaporation of water.
Therefore, proper oxygen supply is needed to maintain the freshness of agricultural products after harvest
When sealing fruit or vegetable products, gas permeability of the packaging material is required to control breathing within the package.In order to maintain freshness, the oxygen in the package differs depending on the type of agricultural products
The oxygen concentration inside the package differs depending on the type of agricultural products in order to maintain the lead.
For APC apple packaging, ethylene gas emissions are important
Proper oxygen permeability inside the packaging material suitable for apple packaging (Exp)
1,600~1,800 cc / day·atm·pkg (Room temperature)
Oxygen permeability per 1 bag of 24 hours per day is 1,600cc ~ 1,800cc per bag - normal temperature.
■ Current used film analysis
- Original packaging paper : The shooting result of perforated portion is as shown in the picture above
It is presumed that when the film is slitted, it is damaged by the needle.
The shape of the perforated part is not uniform, there is a large amount of foreign matter, and the possibility of internal penetration is high.
No OTR measurement (Perforation amount is too much & Perforation size is not uniform).
■ SAMPLE POUCH
-The shooting result of perforated portion is as shown in the picture above
Perform boring using separate drilling equipment.
For SAMPLE products, work with Φ5 ~ 10㎛ size.
The result of the OTR measurement is 1,760 cc / day • atm • pkg.
■ Perforating device and OTR measuring device
Diamond Structures - Perforating Equipment
OTR (oxygen permeability) measurement equipment