Aluminum Foil Overprint Varnish: Formulation & Testing Guide

07/04/2026

In flexible packaging printing, aluminum foil — whether the harder 0.2–0.25 mm variety or the softer 0.07–0.09 mm grade — receives what the industry calls overprint varnish (OP varnish), also known as gloss coating or OP protective agent...

Frozen Prepared Food Packaging: Vacuum, Foil and Freezing Guide

06/16/2026

I. Packaging Methods and Formats 1. Vacuum Bag Packaging An alternative to filling products into formed plastic tray pouches is vacuum bag packaging, widely used in frozen foods. For thicker, heavier products such as pig trotters or lar...

Vegetable Cold Storage Packaging: Small-Package Refrigeration Guide

06/15/2026

Cilantro, spinach, and celery are cold-tolerant leafy greens traditionally stored using natural cold storage methods. However, this approach often leads to heavy losses due to fluctuating outdoor temperatures after storage. Small-package...

Fresh Egg Packaging and Transport: Materials, Techniques and Best Practices

06/14/2026

With the rapid growth of large-scale poultry farms, egg production volumes have expanded significantly. Fresh eggs must serve not only local markets but also distant distribution. Poor packaging and improper transport lead to breakage an...

Vacuum Packaging Materials: Composite Films Guide for Food Products

06/13/2026

Vacuum packaging is suitable for various plastic composite films and plastic-aluminum foil composite films. Common material combinations include PET/PE, PET/PP, NY/PE, NY/PP, PP/PE, PET/AL/PE, BOPP/AL/PE, and PP/NY/PE. These films need a...

Packaging Functions Explained: Protection, Convenience, Sales, Value

06/13/2026

In modern commerce, good packaging makes or breaks how goods move through the supply chain. The science behind packaging design directly affects whether a product maintains its quality and reaches consumers in perfect condition. How a pa...

Food Packaging Machinery: Future Development Trends Analysis

06/13/2026

Food packaging machinery has evolved alongside new packaging materials and continuous innovations in packaging technology. China's invention of papermaking historically provided the foundation for paper packaging. Germany established the...

Aseptic Packaging Technology: Status and Future Development Trends

06/13/2026

Aseptic packaging technology refers to a packaging method where the product, packaging container or material, and packaging auxiliaries are all sterilized, then filled and sealed in a sterile environment. The primary application of asept...

Liquid Flexible Packaging Film Printing: Six Things That Make or Break a Run

05/24/2026