The plastic zipper bag buckle is a straight plastic strip with a symmetrical arrow-shaped cross section. The female buckle is a straight plastic strip with a semicircular cross section and inwardly curved claws at both ends of the semicircle. When the sub buckle is pressed into the female buckle with a slight force, the two wings of the arrow-shaped part of the sub buckle are respectively clamped on the two claw hooks of the female buckle, thereby closing the plastic bag mouth; when the plastic bag mouth is pulled slightly harder, The two arrow-shaped wings of the sub-buckle can be disengaged from the corresponding two claws of the female buckle, thereby opening the mouth of the plastic bag for taking out or loading articles. Plastic bags with this structure are usually made of polyethylene. The main disadvantages of polyethylene are poor transparency, poor high-temperature performance, poor strength, poor heat sealability, and poor printability. Therefore, people have been looking for a material with better performance. To replace polyethylene to produce self-sealing plastic bags.

When choosing color printing packaging for plastic zipper bags, we should consider many aspects, such as quality, material, style and version. If necessary, we can choose wholesale customization, which is more unique. Many people may not be very good at choice. Then, we will use the following introduction to help you better understand and understand the product.

The color-printed packaging of plastic zipper bags is made of different materials, and the packaging forms are also different, so the quality and use effect will be different. Therefore, the quality of the material directly determines its overall quality. The packaging material mainly protects the product during transportation. If the quality is not good, its protection effect is not good, leading to damage. Therefore, in order to have a deeper understanding, we will briefly understand its material classification.

1. Paper packaging materials: packaging paper, honeycomb paper, bag paper, honeycomb paperboard, kraft paper, industrial paperboard, honeycomb paper core and corrugated paper.

2. Color printing packaging plastic packaging materials: sealing film, shrink film, plastic film, winding film and heat shrink film.

3. Composite flexible packaging materials: flexible packaging, aluminized film, aluminum foil composite film, vacuum aluminized paper, composite film and composite paper.

4. Color printing packaging metal packaging materials: tinplate, aluminum foil, barrel hoops, steel belts, packaging buckles, blister aluminum, aluminum plates, steel buckles.

5. Hot stamping materials: hot stamping materials, laser film, anodized aluminum, hot stamping paper, foil film, hot stamping film, hot stamping foil, hot stamping foil and color foil.

According to the specific classification of these packaging materials, we can say that when we choose color printing packaging, we can distinguish its materials well. From the quality of packaging materials, we can also directly distinguish the authenticity of the goods. Ordinary and qualified products will not cut corners from packaging materials. It can be seen that color printing packaging is still very important for controlling materials.