Laser Packaging Bag

Snack laser packaging bags are packaging materials made using laser technology, mainly used for snack packaging. The following is a detailed analysis of snack laser packaging bags:

Features

1. Visual appeal: Laser packaging bags can present special visual effects, such as rainbow-like color changes and three-dimensional patterns. These effects show different colors or effects from different angles.

2. Anti-counterfeiting performance: Laser technology is difficult to counterfeit, so laser packaging bags have good anti-counterfeiting performance. Unique patterns, QR codes, or barcodes can be generated on the packaging bags through laser engraving or laser holographic technology. Consumers can verify the authenticity of the product by visual inspection or mobile scanning.

3. Barrier performance: Laser packaging bags are usually made of high barrier materials such as polyethylene (PE), polypropylene (PP), and polyester (PET). These materials have good sealing and barrier properties, effectively isolating oxygen, moisture, and other external environmental factors, thereby extending the shelf life of snacks.

Materials

The materials of snack laser packaging bags are diverse. The following are some common types:

1. BOPP laser film: Has high tensile strength, good barrier properties, and high transparency. However, it has a high elongation rate and poor heat sealing performance, generally requiring lamination with PE film to improve heat sealing.

2. PET laser film: Good weather resistance, high temperature resistance (100–150 degrees), good hardness, and flatness. However, it is not suitable for products with edges or curved surfaces.

3. PVC laser film: Good flexibility and weather resistance (SPVC). However, it is not environmentally friendly, so many international brands use it less.

4. PE laser film: Low cost, soft, good extensibility, environmentally friendly and pollution-free. However, it has poor weather resistance and is not suitable for high-temperature use (generally below 60 degrees).

Application scenarios

Snack laser packaging bags are widely used for packaging various snacks, such as potato chips, nuts, candies, and chocolates. These packaging bags not only enhance the product's visual effect and grade but also effectively protect snacks from oxidation, moisture, and other external environmental factors, thereby extending the product's shelf life.

Precautions

1. Choose appropriate materials: Select suitable laser packaging bag materials according to the type of snack and shelf life requirements. For example, for snacks that need long-term storage, materials with better barrier properties such as PET or BOPP should be chosen.

2. Pay attention to heat sealing performance: When using BOPP laser film, note its poor heat sealing performance, generally requiring lamination with PE film. Also, control temperature and pressure during heat sealing to ensure the packaging bag's sealing.

3. Environmental requirements: When choosing laser packaging bags, pay attention to their environmental performance. With increasing consumer environmental awareness, more brands are starting to use environmentally friendly materials for packaging bags. Therefore, when selecting laser packaging bags, environmentally friendly materials such as PE can be considered.

In summary, snack laser packaging bags have unique visual effects and excellent anti-counterfeiting performance, which can enhance the product's grade and market competitiveness. When selecting and using them, comprehensive consideration should be given based on the product's characteristics and needs.