Thermoformed PET plastic trays and packaging boxes are widely used in the food industry. PET plastic sheets are increasingly used in the field of cake packaging boxes due to their excellent performance. The following is a detailed explanation of the application cases of PET plastic sheets in cake packaging boxes.
Characteristics and advantages of PET plastic sheets
Size: Thickness: 0.18-2.0mm; Width: 300-1400mm
Color: Transparent/Others or Customized
Application: Thermoforming vacuum forming blister packaging boxes or trays for electronics, food, medical, and other industries
Special performance customization: Anti-fog, ESD (Anti-static, Conductive, Static dissipative), Corona, Printing, Coating, High impact, Waterproof, Oil-proof, Anti-UV, etc.
Excellent transparency:
PET plastic sheets have high transparency, similar to the gloss and clarity of glass. This feature allows the cake packaging box to clearly display the cake inside, enhance the visual appeal of the product, and help increase consumers’ desire to buy.
Good mechanical strength:
PET material has excellent mechanical strength and toughness, making the packaging box not easy to deform and break while protecting the cake. This is especially important for foods such as cakes that are susceptible to physical damage.
Moisture resistance and airtightness:
PET plastic has good moisture resistance and airtightness, which can effectively prevent external moisture and air from entering the packaging box, thereby keeping the cake dry and fresh and extending its shelf life.
Excellent thermoformability:
PET plastic sheets show good plasticity during the thermoforming process and can be molded into various complex packaging box shapes through molds to meet the packaging needs of different cake products. Whether it is a single-layer packaging box or a multi-layer structure, PET sheets can be precisely molded.
Food safety:
PET plastic meets food-grade safety standards and does not release harmful substances, ensuring that cakes will not be contaminated during the packaging process. This is essential for food safety and meets consumers’ health requirements.
Environmental protection:
PET plastic is a recyclable material, and used cake packaging boxes can be recycled and reused, reducing the impact on the environment and meeting the requirements of modern society for sustainable development.
Thermoforming PET tray food packaging process
In the production of cake packaging boxes, the thermoforming tray food packaging process includes the following key steps:
Sheet heating: Put the PET plastic sheet into the thermoforming machine and heat it to a suitable temperature (usually between 180-220℃) through the heater to make it soft.
Molding: The heated PET sheet is fed into the mold and pressed into the mold by vacuum adsorption or pressure to form the shape of the cake packaging box. During this process, PET sheets can be molded into a variety of shapes and sizes to suit the needs of various cakes.
Cooling and shaping: The molded packaging box needs to be cooled quickly to ensure the stability of its shape and size. After cooling, the packaging box will remain strong and transparent.
Trimming and post-processing: After cooling, the cake packaging box usually needs to trim the excess corners to make it reach the standard size. According to the needs, the packaging box can also be surface treated, such as printing brand logos, coating treatment, etc.
Application cases of PET material cake packaging boxes
In practical applications, cake packaging boxes made of PET plastic sheets provide excellent protection and display effects for cakes. Here are a few application cases:
Single cake packaging box:
For single cakes, such as cupcakes or small birthday cakes, transparent packaging boxes made of PET plastic sheets can clearly show the appearance of the cake and increase the attractiveness of the product. The packaging box can also be designed to be easy to carry, such as a box lid with a lock, which is convenient for customers to carry and can keep the cake fresh.
Multi-layer cake packaging box:
For wedding cakes or multi-layer birthday cakes, PET plastic sheets can be made into multi-layer packaging boxes through thermoforming. This packaging box can not only accommodate multi-layer cakes, but also show the full appearance of the cake through the transparent box body, making it a part of the wedding or celebration. In addition, the sturdiness of PET material ensures that the multi-layer cake will not collapse or deform during transportation.
Customized design:
Some high-end cake shops provide customized cake packaging services. PET plastic sheets can be thermoformed to produce packaging boxes with unique shapes and designs, with personalized brand logos and decorations. This not only enhances the brand image, but also increases customer satisfaction with the product.
Environmentally friendly packaging solutions:
With the improvement of environmental awareness, some cake shops choose to use recyclable PET plastic packaging boxes and mark the recycling logo on the box body. In this way, it not only meets the consumer’s demand for environmental protection, but also demonstrates the company’s social responsibility. This packaging method has been favored by more and more consumers, especially among young consumer groups.
Conclusion
The application of PET plastic sheets in cake packaging boxes provides a variety of innovative solutions for the food packaging industry with its excellent transparency, mechanical strength, food safety and good thermoformability. Through the thermoforming tray process, PET sheets can be molded into cake packaging boxes of various shapes to meet the packaging needs of different cake products, while ensuring the integrity and aesthetics of cakes during transportation, storage and display. In the future, with the further development of technology and the improvement of environmental protection requirements, the application of PET plastic sheets in the field of cake packaging will be more extensive and in-depth.
