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Introduction of material types of vacuum food packaging bags

Introduction of material types of vacuum food packaging bags

  • Categories:Industry Trends
  • Author:
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  • Time of issue:2021-01-19 15:48
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(Summary description)Today we will talk about the classification and characteristics of the main forest material of food vacuum bags. Several types of composite materials for vacuum bags are generally: PA/PE or PA/RCPP    PET/PE or PET/RCPP There are also three-layer and four-layer, in order to increase the material texture performance: PET/PA/PE   PET/AL/RCPP   PA/AL/RCPP   PET/PA/ AL/RCPP

Introduction of material types of vacuum food packaging bags

(Summary description)Today we will talk about the classification and characteristics of the main forest material of food vacuum bags.

Several types of composite materials for vacuum bags are generally:

PA/PE or PA/RCPP    PET/PE or PET/RCPP

There are also three-layer and four-layer, in order to increase the material texture performance:

PET/PA/PE   PET/AL/RCPP   PA/AL/RCPP   PET/PA/ AL/RCPP

  • Categories:Industry Trends
  • Author:
  • Origin:
  • Time of issue:2021-01-19 15:48
  • Views:
Information
Today we will talk about the classification and characteristics of the main forest material of food vacuum bags.
 
Several types of composite materials for vacuum bags are generally:
 
PA/PE or PA/RCPP    PET/PE or PET/RCPP
 
There are also three-layer and four-layer, in order to increase the material texture performance:
 
PET/PA/PE   PET/AL/RCPP   PA/AL/RCPP   PET/PA/ AL/RCPP
 
The classification of materials for vacuum packaging, the following are the characteristics of each material suitable for vacuum packaging:
 
1. PE is suitable for low temperature use, RCPP is suitable for high temperature cooking;
 
2. PA is to increase physical strength and puncture resistance;
 
3. AL aluminum foil is to increase barrier performance and shading;
 
4. PET increases mechanical strength and has excellent stiffness.
 
Then according to the requirements, combinations, various properties, there are also transparent, in order to increase the barrier performance, use the water-resistant PVA high barrier coating.
 
Several common vacuum packaging bags
 
High-temperature cooking bags and vacuum bags are used to pack various cooked meats, which are convenient and hygienic.
 
Material: NY/PE, NY/AL/RCPP, NY/PE    Features: moisture resistance, temperature resistance, shading, fragrance retention, toughness
 
Application: high temperature sterilization food, ham, curry, roast eel, roast fish and meat stewed products.
 
At present, the most used vacuum packaging is mainly film materials, of course, bottles and cans are also used. For the film materials used in food vacuum packaging, it is necessary to ensure that the packaging effect, aesthetics, and economy of various foods reaches the best state. At the same time, food vacuum packaging also has higher requirements on the light barrier and stability of the material. When a single material cannot meet these requirements, the packaging is often composed of a variety of different materials.

More information

Due to the moisture absorption of nylon film and the series of adverse consequences caused by moisture absorption, there are certain requirements for the environment of paper-plastic packaging manufacturers. Generally, it should be stored at about 23°C, ±3°C, and the dry humidity difference is ideal within the range of 60%RH±5%RH. The nylon membrane cannot be placed directly on the floor or in the open air to avoid moisture absorption. The difference between dry and wet in the production environment generally does not exceed 75% RH. If it reaches 80% RH, production should be stopped (especially compound production) to avoid bad causes. If the task must be put into production, exhaust fans and dehumidifiers can be added to the production site to enhance indoor air circulation and reduce the humidity of the production environment to below 70%RH for reproduction. In short, when the humidity exceeds 70%RH, you must use it with caution. When the temperature is low or the humidity is too high, you must turn on the preheating equipment of the printing and laminating machine, first preheat the nylon film, and dry it on the surface of the nylon film. In order to facilitate the smooth progress of printing and composite production; at the turn of winter and spring, due to large temperature changes, when using mixed solvents, pay attention to effective adjustments with changes in temperature to prevent solvents from evaporating too fast or residual solvents. More quality accidents.
In addition to containing and sealing the product, a packaging bag is more important to isolate the product from the outside world to protect the product. In addition, the molecular interaction between the packaging material itself and the product causes the product to deteriorate, which has become a problem that the packaging bag manufacturer needs to solve. This article focuses on explaining how we solved this problem. Packaging bag manufacturers generally use PE material film in direct contact with the product. So, what is a PE material film?
Plastic packaging bag manufacturers tell us that we need to pay more attention to the later stage of manufacturing products, because the product will over-harden if you are not careful. This phenomenon occurs because the proportion of ingredients has not been properly handled. Today we will understand how to prevent it. The appearance of hardening.
Will the vacuum food packaging bag wrinkle? How to solve it? 1. Replace the qualified film. 2. Adjust the position of the film so that it does not deflect during the conveying process. 3. Adjust the amount of glue applied and apply glue evenly. 4. Adjust the process parameters to make the adhesive fully dry and reduce the residual amount of solvent. 5. The composite film should be fully cooled before rewinding. 6. Adjust compound pressure. 7. Adjust the tension of unwinding and rewinding to match the tension of each part. 8. Adjust the parallelism of each guide roller. 9. Clean the surface of each guide roller and replace the damaged guide roller to ensure that the surface of the guide roller is flat, smooth and clean.
Among the applied materials of plastic packaging bags, there are often three-layer, five-layer, seven-layer, and nine-layer composite films. What is the difference between different layers of composite film? 5 layer and 3 layer comparison
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