Plastic stand-up pouches have become the packaging of choice for the food and daily chemical industries due to their light weight, durability, and ease of display. However, stand-up pouches on the market vary in material and function. How can you choose the most suitable product packaging? This article will guide you step by step on how to choose the right stand-up pouch based on key factors such as material, sealability, and printing technology.
1.Look at the material: different contents require different protectionc
Stand-up pouches are usually made of multi-layer composite materials, with common combinations including:
PET/PE: Suitable for ordinary dry foods, low cost, tear-resistant.
PET/AL/PE: Contains an aluminum foil layer, strong barrier properties, suitable for moisture-sensitive products such as coffee and milk powder.
Transparent PET/CPP: High transparency, suitable for products that need to display their contents .
KNY/PE: High temperature resistant , can be used for pasteurized liquid foods.
Selection recommendations: For easily oxidized foods, choose aluminum foil material; for foods that need to be heated in a microwave, choose high-temperature resistant CPP material; for environmentally friendly options, choose single-material PE.
2.Sealing performance: directly affects product shelf life
Select the type of seal based on the characteristics of the contents:
Standard heat seal: Lowest cost, suitable for dry goods for single use.
Zipper seal: Can be opened and closed repeatedly, suitable for products that require multiple uses, such as nuts and pet food.
Spout/screw cap: Essential for liquids, leak-proof and easy to use.
Easy-tear design: For products used by children or the elderly.
3.Thickness selection: thicker is not necessarily better.
The thickness of stand-up pouches is measured in 0.01 mm. Common ranges are as follows:
8-12 threads: Lightweight packaging.
12-15 threads: General thickness.
16-20 threads: Heavy-duty packaging.
4. Printing process: Affects aesthetics and safety
Conventional ink printing: Low cost, but may migrate into food.
Water-based ink: Environmentally friendly and non-toxic, suitable for children food packaging.
Aluminum coating/laser effect: Enhances high-end feel, but reduces material recyclability.