Blogs-Dongguang Haokai Plastic Co., Ltd

High Temperature Resistance of Vacuum Packaging Bags

Most ordinary vacuum packaging bags are not high-temperature resistant, and their heat resistance depends entirely on the composite materials used in production. Unlike high-temperature resistant packaging bags such as re...

Material Composition of Vacuum Packaging Bags

Vacuum packaging bags are high-barrier plastic composite packaging materials specially designed for sealed fresh-keeping storage. Different from ordinary plastic bags, their material formula is strictly optimized to achie...

How to Seal Vacuum Packaging Bags

Sealing is the core step of vacuum packaging, which directly determines the airtightness, fresh-keeping effect and storage life of vacuum packaging bags. A complete and tight seal can isolate external air, moisture and ba...

Differences Between Thickened and Ordinary Vacuum Packaging Bags

Vacuum packaging bags are divided into ordinary thin models and thickened high-strength models according to material thickness and structural design. Although both types can realize vacuum sealing and food fresh-keeping f...

Causes of Bulging Vacuum Packaging Bags

Vacuum packaging is designed to remove internal air and maintain a flat and compressed state for long-term food preservation. However, bag bulging, also known as ballooning, frequently occurs during storage and transporta...

Is Food Edible If Vacuum Packaging Bags Leak Air?

Vacuum packaging eliminates internal air to isolate oxygen,bacteria,and moisture,which greatly extends the shelf life of packaged food.Once the vacuum packaging bag leaks air,the original sterile and sealed storage enviro...