I. Choose label materials resistant to harsh environments
The label substrate must withstand challenges such as high temperatures, humidity, and chemical corrosion:
Recommended substrates: Use materials such as PP synthetic paper, PET polyester film, or aluminum plate. PP synthetic paper has a dense molecular structure, does not absorb liquid, and does not swell; PET film can withstand extreme temperatures from -40℃ to 149℃, and is scratch-resistant and solvent-resistant.
Special environment suitability:
High-temperature environments (e.g., retort cooking, sterilization): Use high-temperature resistant acrylic pressure-sensitive adhesive + polyimide substrate, which can withstand 250℃ for 72 hours without peeling.
Chemical corrosion environments (contact with acetone, ethyl acetate, etc.): A cross-linked coating + anti-migration adhesive layer must be used to prevent ink smudging and adhesive failure.
Outdoor or humid environments: Choose waterproof, oil-proof, and tear-resistant three-proof labels, such as Funing three-proof heat-sensitive strong adhesive labels, to ensure long-term adhesion.
II. Use High-Performance Adhesives
The adhesive layer is crucial for preventing labeling peeling:
Acrylic Adhesive: Temperature resistant up to approximately 200℃, good chemical and antioxidant properties, moderate cost, commonly used in industry.
Silicone Adhesive: Optimal performance, withstands temperatures exceeding 200℃, but expensive, suitable for harsh environments such as aerospace and high-end electronics.
Polysitive Solvent-Based Acrylic Adhesive: Strong adhesion and leaves no residue, resistant to alcohol wiping, suitable for repeated cleaning environments in laboratories.
III. Standardize Labeling Procedures
Even high-quality labels can fail if applied incorrectly:
Surface Preparation: Ensure the container surface is clean, dry, and free of oil before labeling; otherwise, adhesion will be significantly reduced.
Labeling Method: Use the pressure method, applying even pressure by hand or roller, removing air bubbles, and ensuring full contact.
Avoid Common Mistakes: Do not label in humid, low-temperature, or dusty environments; do not use ordinary coated paper or thermal paper labels in contact with solvents.
IV. Regular Inspection and Replacement
During long-term storage or transportation, the label condition should be checked regularly:
Check for curling, fading, blurring, or partial peeling.
For high-risk environments (such as cold storage or near reaction vessels), it is recommended to inspect every 3-6 months and replace aging labels promptly.
