1. Applicable material types
Heat Shrinking Machine is mainly suitable for the following types of shrinking materials:
POF (polyolefin heat shrink film):
Features: high surface gloss, good toughness, high tear strength, and uniform heat shrinkage.
Applicable scenarios: Due to the above advantages of POF shrink film, it is very suitable for fully automatic high-speed packaging and is widely used in food, beverages, medicine, daily chemicals, electronic products and other fields.
PE (polyethylene heat shrink film):
Features: It has good heat shrinkage and toughness, and the price is relatively low.
Applicable scenarios: PE shrink film is suitable for packaging a variety of products, such as daily necessities, food, etc., especially some products with certain cost requirements.
PVC (polyvinyl chloride heat shrink film):
Features: It has good transparency and toughness, and is easy to process and shape.
Applicable scenarios: PVC shrink film is suitable for packaging some products with more complex shapes, but it should be noted that the environmental protection of PVC film is relatively poor and it is easy to produce harmful gases, so it is not suitable for some products with high environmental requirements.
2. Applicable material thickness and length
The thickness and length of shrinkage materials applicable to heat shrink packaging machines vary depending on the machine model and brand, but generally speaking:
Thickness: Common shrink film thickness ranges from 0.015 to 0.025 mm. Shrink films within this range can provide good wrapping effects and ensure that they will not shrink unevenly or be difficult to shrink due to excessive thickness during the heating process.
Length: The length of the shrink film is determined according to the size and shape of the product, generally between 145 and 175 mm. Ensure that the shrink film can completely wrap the product and form a tight packaging effect after heating and shrinking.
3. Selection considerations
When choosing shrink materials suitable for heat shrink packaging machines, in addition to considering the type, thickness and length of the material, you also need to pay attention to the following points:
Transparency of the material: According to the characteristics and display requirements of the product, choose a shrink film with moderate transparency. A shrink film with high transparency can clearly show the appearance and details of the product, and improve the beauty and attractiveness of the product.
Toughness of the material: Choosing a shrink film with good toughness can ensure that it is not easy to break or tear during the packaging process, and improve the integrity and protection of the packaging.
Environmental protection of materials: With the continuous improvement of environmental awareness, more and more companies have begun to pay attention to the environmental protection of shrinkage materials. Choosing shrink film with good environmental performance can reduce the impact on the environment and enhance the social responsibility of enterprises.
Machine compatibility: When choosing shrinkage materials, you also need to consider its compatibility with heat shrink packaging machines. Ensure that the selected materials can run smoothly on the machine and achieve the expected packaging effect.