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What is a side gusset bag?

Applications Across Industries Food Industry Ideal for bulk and perishable items, side gusset bags leverage barrier materials (aluminum foil composites) and degassing valves to preserve freshness. QQ Studio’s coffee bags, for example, use one-way valves to release CO₂ while maintaining aroma, mak... Read More

what is doypack?

Doypack is a common flexible packaging pouch, its full name derived from a patent registered by a French company in the 1960s. It is one of the most stand up pouches in modern food and daily chemical products. Doypacks are a sustainable, easily customizable flexible packaging solution that offers... Read More

The reason why the bag-in-box valve is difficult to open and the liquid does not flow smoothly after hot filling.

After hot filling, bag-in-box valves can be difficult to open and liquid flow out smoothly. This is primarily due to the effects of high temperatures on the valve structure, pressure changes within the bag, and changes in the state of the contents. The specific reasons are as follows: 1. Valve co... Read More

Why does capacity deviation occur after bag-in-box hot filling?

Capacity deviation (actual capacity differs from the labeled value, often indicating underfill) after hot filling of bag-in-box packaging is primarily related to factors such as the physical properties of the liquid in a high-temperature environment, the thermal response of the packaging material... Read More

Beyond the Bottle: The Green Future of Sparkling Wine in Bag-in-Box Packaging

What wines are currently available for Bag-in-Box packaging? With sparkling wines, carbon dioxide is the predominant factor affecting pressure difference. Typically, sparkling white wines are more suitable for Bag-in-Box packaging than sparkling red wines because the former manage to preserve the... Read More

Climbing New Heights Together: Our Company Team-Building Adventure

On the sunny day of August 16th, Henan Baolai Packaging Co., Ltd. set out on a mountain trail, embarking on a team-building adventure that combined outdoor adventure, friendly competition, and a common goal.  As a company specializing in custom composite flexible packaging, we understand that the... Read More

What is EVOH used for? New packaging options

What is EVOH? Ethylene vinyl alcohol copolymer (EVOH) is a crystalline polymer with a chain-like molecular structure. EVOH exhibits excellent barrier properties, processability, transparency, elasticity, crystallinity, and weather resistance. The resin is halogen-free, making it environmentally f... Read More

Top 5 Benefits of Flexible Packaging for Cold Brew Coffee

The cold brew coffee market is growing rapidly and is expected to reach $7.14 billion by 2030, with an annual growth rate of 17.12%. (Mordor Intelligence, 2025) At the same time, cold brew coffee packaging is also undergoing innovation. Flexible packaging, including sachets, spout bags and stand ... Read More

What Is Easy Peel Lidding Film?

How Easy Peel Lidding Film Works The film features a multi-layer structure with a special sealant coating. When heat-sealed to containers like plastic trays or cups, it creates a strong hermetic seal that blocks oxygen and moisture. Crucially, the sealant is engineered for controlled peel strengt... Read More

The Evolution of Ready Meal Packaging

In today’s fast-paced world, convenience is king. As more and more people seek quick and convenient meal solutions without sacrificing quality, the demand for ready-to-eat food packaging has soared. At the heart of this revolution are innovations such as retort pouches and aluminum foil bag... Read More

New juice packaging solution: stand up pouch 3L with faucet

Stand up pouch with tap/faucet: Modern juice Packaging Solutions In the modern packaging market, vertical tap tote bags are popular for their convenience and versatility. These bags are not only suitable for the storage and transportation of liquids, but also keep the freshness and safety of the ... Read More

Flexible Packaging Solutions for Pre-Prepared Meals: Boost Freshness & Convenience

In today’s fast-paced world, ready meals are becoming an increasingly important part of our daily lives due to their variety and convenience. As an essential component of meal packaging, flexible packaging must ensure food safety and hygiene, as well as playing a key role in preservation an... Read More
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