Screen Printing Ink Printability Adjustment Techniques

07/05/2026

Screen printing ink straight from the manufacturer is rarely ready to go. The factory default viscosity runs high. They ship it that way because different jobs need different flow. You are adjusting for five things: what you are printin...

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...

Statistical Supplier Quality: SPC Evaluation for Raw Materials

06/21/2026

Ink product quality is influenced by five factors: people, machines, materials, environment, and methods. Four of these 鈥?people, machines, environment, and methods 鈥?can be managed and improved through internal controls. But "material...

PP Recycling Problems & Solutions: Color, Toughness, Odor Fixes

06/21/2026

Whether processing crushed polypropylene (PP) from electrical appliances, automotive materials, or packaging materials, recycled PP quality inevitably degrades to varying degrees due to PP's inherent chemical structure. Recycled material...

Engineering Plastics Guide: PA, PC, POM, PPO, PBT/PET Properties

06/17/2026

Among general-purpose engineering plastics, five materials are most widely used ??collectively known as the five major engineering plastics: Polyamide (PA), Polyoxymethylene (POM), Polyphenylene Oxide (PPO), Polycarbonate (PC), and Polyb...

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...

Pharmaceutical Blister Packaging: Materials, Process, Equipment Guide

06/13/2026

Blister packaging for pharmaceuticals comes in various sizes and shapes — blister cavities, trays, and cartons of different dimensions depending on the packaged product. Some use backing substrates while others do not. Blister pack...

PE Protective Film: Functional Coextrusion and Barrier Technology Trends

06/10/2026

Plastic packaging films have moved beyond basic protection and visibility. Today's functional films incorporate antistatic properties, controlled friction coefficients, tailored gas permeability, high optical clarity, and barrier perform...