The influence of hot melt wire packaging on the shelf life of food

The influence of hot melt wire packaging on the shelf life of food
In the food packaging industry, the choice of packaging materials plays a vital role in the shelf life of food. As a common packaging method, hot melt wire packaging is gradually attracting people’s attention. This article will explore the influence of hot melt wire packaging on the shelf life of food in depth to help international wholesale buyers better understand this packaging form.

The insulation performance of hot melt wire packaging and the shelf life of food
The hot melt wire packaging has good insulation performance, which is one of the key factors that can affect the shelf life of food.
Isolation of air: hot melt wire packaging can effectively isolate food from the outside air. Oxygen in the air is one of the important factors that cause food oxidation and deterioration. It will promote the oxidation of fat in food, produce bad odors and tastes such as rancidity, and may also cause the oxidation and decomposition of nutrients in food such as vitamins, reducing the nutritional value of food. Hot melt wire packaging prevents oxygen from entering the packaging through a tight seal, thereby slowing down the oxidation of food and extending the shelf life of food.
Isolation of moisture: In addition to oxygen, moisture is also an important factor affecting the shelf life of food. For some dry foods, such as biscuits and puffed foods, absorbing too much water will cause the food to become soft, damp, or even moldy and deteriorate. Hot melt packaging can provide good moisture resistance, prevent external moisture from penetrating into the packaging, keep the food dry and brittle, and help extend the shelf life of these foods.

Sealing of hot melt packaging and food shelf life
Good sealing is an important feature of hot melt packaging to ensure the shelf life of food.
Prevent leakage: Hot melt packaging forms a tight seal at the sealing point through the bonding effect of materials such as hot melt adhesive. This can prevent food from leaking during transportation, storage and sales, and avoid food from being contaminated by the external environment. At the same time, it can also maintain the integrity and freshness of the food and extend its shelf life.
Resist external pollution: Tight sealing can also effectively prevent external dust, bacteria, microorganisms and other pollutants from entering the packaging, reducing the chance of food contamination, thereby reducing the risk of food deterioration and extending the shelf life of food.

Material properties of hot melt packaging and food shelf life
The material properties used in hot melt packaging also play an important role in its impact on the shelf life of food.
Chemical stability: Hot melt packaging materials usually have good chemical stability and will not react chemically with food, thus avoiding the adverse effects of possible chemical pollution on the shelf life of food. For example, some special hot melt adhesive materials will not change their chemical structure significantly during high-temperature melting and cooling and hardening, and will not release harmful substances, ensuring the safety and shelf life of food.
Heat and cold resistance: Food may face temperature changes under different storage and transportation environments. Hot melt packaging materials have certain heat and cold resistance and can maintain their performance stability over a wide temperature range. This means that whether it is a high temperature environment or a low temperature environment, hot melt packaging can effectively protect food, prevent food from deteriorating due to temperature changes, and extend the shelf life of food.

Production process control of hot melt packaging and food shelf life
The production process control of hot melt packaging will also affect its effect on the shelf life of food.
Quality control: In the production process of hot melt packaging, strict quality control is the key to ensure its performance. This includes the control of raw material quality, cleanliness and hygiene of the production environment, precision and stability of production equipment, etc. Only when the quality is guaranteed during the production process can the hot melt packaging play a good sealing and insulation performance in practical applications, thereby effectively extending the shelf life of food.
Process optimization: Advanced production processes can improve the quality and performance of hot melt packaging. For example, by optimizing the formula and production process of hot melt adhesive, it can have better viscosity, flexibility and durability, thereby enhancing the sealing and impact resistance of the packaging, better protecting the integrity of food during transportation and storage, and extending the shelf life of food.

Comparison of hot melt packaging with other packaging forms on the shelf life of food
In order to better understand the impact of hot melt packaging on the shelf life of food, we can compare it with other common packaging forms.
Compared with plastic film packaging: Although plastic film packaging also has certain insulation properties, its sealing is relatively poor, and it is easy to leak and external contaminants enter. Hot melt packaging has obvious advantages in terms of sealing, and can more effectively extend the shelf life of food.
Compared with paper packaging: Paper packaging has relatively weak insulation and moisture resistance, and is easily affected by environmental humidity, resulting in packaging damage and food deterioration. Hot melt packaging performs well in isolating air, moisture and preventing leakage. For some foods with high shelf life requirements, hot melt packaging is a better choice.
How to choose suitable hot melt packaging materials to extend the shelf life of food
For different types of food and shelf life requirements, it is crucial to choose suitable hot melt packaging materials.
Choose according to food characteristics: Different foods have different characteristics and shelf life requirements. For example, for foods that are easily oxidized, hot melt packaging materials with good antioxidant properties should be selected; for foods with low water content, attention should be paid to the moisture resistance of packaging materials. Understanding the characteristics of food and choosing suitable packaging materials can better play the role of hot melt packaging in extending the shelf life of food.
Consider storage and transportation conditions: When choosing hot melt packaging materials, it is also necessary to consider the environmental conditions of food during storage and transportation. If food needs to be stored and transported in harsh environments such as high temperature and high humidity,