News

How can laminated packaging reduce costs? Ensuring uniform thickness is key to maintaining protective functions.Taking barrier functional materials as an example, the uniformity of the barrier layer directly affects overall barrier performance. The barrier layer is the most critical part of a barrier film,

Improper heat sealing parameters

The heat sealing temperature should be precisely adjusted according to the material properties, thickness, and the number of sealing passes. For repeated sealing in the same area, a slight reduction in temperature is recommended to prevent material degradation. Insufficient sealing pressure may result in weak seals, while excessive pressure can lead to material extrusion or deformation, necessitating an optimal balance. The sealing time must be carefully aligned with the temperature and material characteristics, and it is advisable to fine-tune these parameters through rigorous trial validation.

Market Demand
China’s pet food industry has witnessed rapid growth in recent years, with the market expected to exceed RMB 200 billion by 2025. As a critical part of the value chain, the packaging sector is growing at a compound annual rate of over 10%, driven by the following key factors:

Cast Polypropylene (CPP)

CPP can generally be classified into the following types of films

The development trend of packaging design should reduce the number of colors, reduce the amount of ink usage, highlight creativity, be closer to nature, consider the integration with printing materials, and fully explore the sustainability of the development of packaging printing.

This article introduces the key process control points in the production process for roll film products to meet the performance requirements of automated packaging equipment.

Automatic Weighing & Feeding Raw Materials

Extruder Plasticization

Film Blowing by Multi-layer Co-extrusion Die Head

Cooling & Forming

Rewinding

Process Flow Chart of Co-extruded Film