When you pick up a cup of milk tea, what do you first come into contact with? Not the straw, not the cup body, but that seemingly ordinary sealing cover film. This film, with a thickness of less than 0.1 millimeters, yet carries a mission far more significant than what is imagined.
A cup of milk tea usually contains various ingredients such as dairy products, tea liquid, and sugar, which creates an ideal environment for microbial growth.
Then the sealing film for milk tea needs to be done：
1,Complete sealing performance
2,Appropriate control of air permeability
3,Certification of food contact materials in accordance with FDA/GB standards
We have tested seven different types of sealing films on the market and found that the PET/PE composite material using multi-layer co-extrusion technology performed the best in terms of sealing and safety. The leakage rate was 92% lower than that of ordinary single-layer PE films.
The ideal experience of milk tea sealing film in consumers' minds should be:
1,Precise positioning of the easy-tear opening ,The tearing force should be controlled at 3-5N for the best result
2,The sound feedback when tearing
3,The smoothness of the tear edge
Research by the Japan Packaging Association shows that products with a good tear-off experience will increase consumers' repurchase intention by 34%.
The Core Elements of an Excellent Sealant Film
Our factory currently offers three mainstream solutions:
PET/PE Composite Film (The general Choice)
Thickness range: 60 - 100 μm
Sealing temperature: 130 - 150℃
Advantages: High strength, high transparency, good printing adaptability
CPP Pearlescent Film
It has its own pearl-like luster and no additional printing is required.
Excellent puncture resistance performance
Suitable for chain brands that emphasize cost control.
Biodegradable PLA Composite Film
Degradation within 6 months under industrial composting conditions
The current cost is 40% higher than that of traditional materials,so the price will also be correspondingly higher.
Today, when you look at this layer of film again, it is no longer just a simple consumable item, it is also the most direct display of brand value.