Definition of dry light weight packaging, retort packaging and heavy-duty packaging.

Definition of dry light weight packaging, retort packaging and heavy-duty packaging.

  Dry lightweight packaging generally refers to the packaging of dry and lightweight items. Dry items to those without obvious moisture, oil, solvents, and other mediums, while lightweight refers to usually being below a few kilograms (such as 5 kilograms).

  Retort packaging is packaging that can withstand high-temperature boiling (sterilization) for a certain period of time without breaking, cracking, shrinking, or producing any odor. It typically includes water boiling packaging (100℃), high-temperature boiling (120℃), and ultra-high-temperature boiling (135℃). Boilable bags are a type of composite plastic film bags where food can stay intact inside and be consumed after being heated and sterilized at high temperatures. It is an ideal sales packaging container, suitable for packaging meat and soy products, convenient, hygienic, practical, and favored by consumers.

  Heavy-duty packaging refers to packaging suitable for heavier weight items. In the field of flexible packaging, it usually refers to packaging of 5 or 10 kilograms and above, commonly used for packaging plastic materials, fertilizers, animal feed, rice, grains, and laundry detergent, among others.

It's evident that these definitions are not very strict in academia but have become common practice in the industry.