Proper use of food packaging bags

Nowadays, food-grade plastic packaging bags are used for packaging extensively, mainly for convenience and hygiene, but for consumers, being able to understand food packaging bags materials also Keywords 。 Below Professional flexible packaging manufacturer Shunxingyuan Packaging will provide you with detailed introduction a bit food packaging bags material identification methods.

To identify whether food packaging bags are toxic or non-toxic, the following simple methods can be used:

Water testing method: Put the food packaging bags into water. Non-toxic packaging bags will float to the surface when placed in water, while toxic ones food packaging bags will not float upwards or sink to the bottom (depending on density).

Hand touch testing method: Touch the plastic bag with your hand. If it feels smooth, it's non-toxic; otherwise, it's toxic or has a sticky feel (depending on material).

Shaking testing method: Hold one end of the plastic bag with your hand and forcefully pat it. If it produces a crisp sound, it's non-toxic; otherwise, it's toxic and produces a dull sound or doesn't make a sound or produces a muted sound (depending on material).

Burning testing method: Cut off a strip from the plastic bag and burn it with fire. Toxic ones are not easily flammable or burn with a pungent smell (depending on material), while non-toxic ones burn easily when exposed to fire or melt without a strong smell (depending on material).

Correctly choosing and using food packaging bags food packaging bags should pay attention to the following points:

1. food packaging bags The outer packaging should have Chinese labels, indicating the manufacturer's name, address, product name, and clearly stating “For Food Use” . All products come with a quality inspection certificate upon leaving the factory or are accompanied by a quality inspection certificate when leaving the factory (depending on phrasing).

2. food packaging bags They should be odorless and tasteless when leaving the factory. Packaging bags with peculiar odors cannot be used for food packaging or bags with peculiar odors cannot be used for food packaging (depending on phrasing).

3. Colored plastic packaging bags (such as dark red or black commonly used in the market) cannot be used for food packaging, as these types of plastic packaging bags are often made from recycled plastic or made from recycled and regenerated plastics (depending on material).

4. Try to choose materials without coatings or platings. In modern packaging design, materials with coatings or platings are widely used to make packaging more beautiful and corrosion-resistant. This not only creates difficulties for material recycling and reuse after the product is discarded but also most coatings themselves are toxic. If people consume food packaged with these materials, it can cause great harm to their bodies. In addition, the coating and plating processes also cause significant environmental pollution. For example, coatings volatile toxic solvent gases, and electroplating produces waste liquid and residue containing heavy metals like chromium. Therefore, packaging materials without coatings or platings should be chosen as much as possible or packaging materials without coatings or platings should be selected as much as possible (depending on phrasing).

Long-press the QR code to follow and customize your exclusive packaging.

www.dgsunpak.cn  food packaging bags