In plastic lunch box injection molding, holding pressure time is a critical process parameter directly affecting both the molding quality and the operating condition of the mold. Whether the holding pressure time is set properly determines not only the dimensional accuracy, surface appearance, and mechanical properties of the lunch box, […]

Preface In modern life, reusable water bottles and sport flasks have become everyday essentials. However, as public concern over environmental hormones like BPA (Bisphenol A) grows, traditional PC plastic is being phased out. Replacing it is a material that promises safety, durability, and glass-like clarity: Tritan. Many parents choosing kids’

1. Purpose and Importance of Testing The primary goal of testing food containers is to ensure product quality and safety, preventing harmful substances from migrating into food and safeguarding consumer health. Through scientific testing, potential defects in materials, structure, functionality, and safety can be identified. This helps manufacturers improve processes,

In the production of printed plastic lunch boxes, screen printing and heat transfer printing are two commonly used techniques. Each method offers distinct advantages depending on the production process and product positioning. This article compares these two printing methods from the perspective of practical applications for plastic lunch boxes, helping

Mold temperature is one of the most critical parameters in the injection molding process, directly influencing the dimensional accuracy, surface quality, mechanical properties, and production efficiency of plastic lunch boxes. Precise control of mold temperature helps reduce defects such as weld lines, sink marks, and warpage, while balancing cycle time