2023-06-06

A Brief Discussion on Packaging Bag Design

Designing an effective packaging bag involves three key aspects: visual design, structural design, and color design. Only by comprehensively addressing these three elements can the design fully realize its potential. Packaging design is not limited to technology and art; it encompasses a wide range of considerations, making the task of creating a well-designed package far from easy. In packaging design, form design—also known as shape design—refers to the external appearance of the package. By leveraging the package’s physical form, designers can convey meaning and appeal through visual communication. Beyond protecting the product, packaging must also boast an attractive aesthetic and practical cost-effectiveness. The structural design of packaging should prioritize protection, convenience, and reusability. Drawing on scientific principles, the internal and external components of the package should be integrated to achieve an optimal design. A well-executed structural design balances the need to safeguard the product with ease of use, while also maximizing the potential for repeated use.

2023-06-06

How to determine whether food packaging is compliant

We are all familiar with packaging bags, as virtually everything we buy comes packaged in one. But do you know whether these bags meet quality standards? Let’s find out together with Shenzhen Packaging Bags. 1. The appearance must be free of defects that could impair usability, such as bubbles, punctures, water marks, stringing, poor plasticization, and fish-eye or rigid clumps. Deviations in specification—width, length, and thickness—must also fall within the prescribed tolerance ranges. 2. Physical and mechanical properties include tensile strength and elongation at break, which reflect the material’s ability to withstand tensile forces during use. If these properties fail to meet the standard, food packaging bags (films) are prone to tearing or damage during handling. 3. Hygienic performance encompasses parameters such as evaporation residue (measured using acetic acid, ethanol, and n-hexane), potassium permanganate consumption, heavy metals, and decolorization tests. Evaporation residue indicates the likelihood that residues or heavy metals may leach from the packaging bag when it comes into contact with liquids like vinegar, alcohol, or oil during use. Such residues and heavy metals can have adverse effects on human health, and they can also directly compromise the color, aroma, and taste of the food, thereby affecting its overall quality. 4. Degradability varies depending on the type of degradation: photodegradable, biodegradable, and environmentally degradable. Degradability reflects the product’s ability to be accepted by the environment after it has been discarded. When degradation is effective, the bag (or film) will, under the combined action of light and microorganisms, spontaneously break down, disintegrate, and decompose, eventually turning into small fragments that can be assimilated by the natural environment. By contrast, if degradability is poor, the material will not be readily accepted by the environment, leading to “white pollution.”

2023-06-06

What are the three key details to consider when printing food packaging bags?

Food packaging bags can be classified according to their application into: general food packaging bags, vacuum food packaging bags, puffed-food packaging bags, boiled-food packaging bags, steamed-food packaging bags, and functional food packaging bags. Given the wide range of applications for food packaging bags, do you know what precautions should be taken during the printing process? No problem—next, a Shenzhen packaging-bag manufacturer will walk you through the key considerations. Let’s take a look. 1. During the printing of food packaging bags, the roller pressure must be properly adjusted. Even a slight oversight during printing can cause the blanket to be crushed; moreover, if the ink density is too high or the solid areas are excessively large, the blanket or ink rollers are prone to sticking. Therefore,