What Materials Are Used for In-Mold Labels?

What Materials Are Used for In-Mold Labels?

In-mold labeling requires materials that are fully compatible with the molding process and can bond seamlessly with the plastic product. The most commonly used materials are:

1. Polypropylene (PP)

PP is the primary material used for IML. It provides:

• Excellent molding performance

• Strong adhesion with the container surface

• High stiffness & impact resistance

• Good chemical and moisture resistance

PP-based IML films are ideal for both injection molding and blow-molding applications.

2. High-Density Polyethylene (HDPE)

HDPE is another suitable material for IML, particularly for containers that require:

• Strong mechanical durability

• Moisture & chemical resistance

• Smooth surface finish

HDPE labels are commonly used in household chemical packaging, personal care products, and industrial containers.

In-Mold Labeling Applications

IML technology is widely used across multiple industries due to its efficiency, durability, and ability to achieve high-quality decoration. Key application sectors include:

✔ Food & Beverage Packaging

Used in bottles, cups, tubs, and lids with vivid graphics that do not fade or peel.
Examples: ice cream tubs, beverage lids, yogurt cups.

✔ Medical & Healthcare Products

Provides high hygiene standards, tamper-evidence, and consistent traceability.
Examples: inhalers, syringe components, medication vials.

✔ Consumer Goods & Personal Care

Suitable for cosmetics, home care products, and food packaging that require strong branding and visual appeal.
Examples: shampoo bottles, detergent packaging, makeup containers.