Three-side sealing bags are widely used in many fields, mainly including food, cosmetics, medicines, frozen foods, etc
Application scenarios
Food packaging: three-side sealing bags are often used for snack food, rice, tea, facial masks and other packaging. Due to its good airtightness and moisturizing properties, it can effectively prevent moisture and mildew, and maintain the freshness and quality of the product.
Cosmetic packaging: The three-side sealing bag is also suitable for cosmetic packaging, which has good sealing performance, which can prevent cosmetics from deteriorating and maintain their freshness and effectiveness.
Pharmaceutical packaging: In pharmaceutical packaging, the three-sided sealing bag can provide good sealing and moisture-proof effect, and ensure the stability of the drug during storage and transportation.
Frozen food packaging: Due to its high-temperature sterilization resistance, three-side sealing bags are also commonly used in the packaging of frozen food to ensure the quality and safety of food in the frozen state.
Materials and properties
Three-side sealing bags are usually made of PET, CPE, CPP, OPP, PA, AL, KPET and other materials. These materials have good barrier, moisture resistance and low heat sealability, and are suitable for bottle sealing films of various conventional materials. In addition, the three-sided seal bag can be customized as needed, such as adding resealable zippers, easy-to-open tear notches and hanging holes for shelf display.
Production process and equipment
The production process of three-side sealing bags is relatively simple, and the overall heat sealing and then single bag cutting are usually adopted. This production method is not only adaptable, but also highly stable, suitable for large-scale production.
To sum up, three-side sealing bags have a wide range of applications in food, cosmetics, pharmaceuticals and frozen foods because of their good sealing, moisture resistance and customizability.
