How Does In Mould Labeling Work? Full Process Guide
In mould labeling (IML) is a highly efficient manufacturing technology that integrates labels directly into plastic products during the molding process. Instead of applying labels after production, the label is fused with the container, delivering superior durability, aesthetics, and cost efficiency.
Understanding how in mould labeling works helps manufacturers optimize production, reduce costs, and improve product quality in competitive packaging markets.
Read more:
What Happens Inside the IML Process?
In mould labeling works by combining label printing, robotic placement, and injection molding into one synchronized process.
Core Process Flow
| Stage | Description | Technical Details |
|---|---|---|
| Label Printing | Labels printed on plastic film | PP/PET, 50–80 µm thickness |
| Static Charging | Label prepared for placement | Electrostatic positioning |
| Robot Placement | Label inserted into mold | Precision ±0.1 mm |
| Mold Closing | Mold clamps label in place | 50–150 ton force |
| Injection | Molten plastic injected | 180–280°C |
| Fusion | Label bonds with plastic | No adhesive needed |
| Cooling & Ejection | Finished product released | 5–15 sec cycle |
The result is a seamless, durable, and high-resolution labeled product.
Key Technical Specifications in IML Production
To ensure consistent quality, manufacturers must control critical parameters:
| Parameter | Standard Range |
|---|---|
| Label Thickness | 50 – 80 microns |
| Injection Temperature | 180 – 280°C |
| Mold Pressure | 50 – 150 tons |
| Cycle Time | 5 – 15 seconds |
| Printing Resolution | Up to 300 DPI |
| Adhesion | Permanent bonding |
These values directly impact label adhesion, visual quality, and production efficiency.
in mould labeling film structure layers
Structure of an In Mould Label
An IML label is engineered for compatibility with molten plastic:
- Base film (PP/PET)
- Printed ink layer (reverse printing)
- Protective coating
- Static layer (for mold positioning)
This structure ensures the label becomes part of the product, not just attached to it.
Materials Used in In Mould Labeling
Label Film
- Polypropylene (PP): most common, cost-effective
- Polyethylene (PE): flexible applications
- PET: premium packaging
Printing Technology
- Gravure printing (high volume)
- Offset printing (high detail)
- UV ink curing (durability)
Compatible Processes
- Injection molding (most popular)
- Blow molding
- Thermoforming
Advantages of In Mould Labeling
Production Efficiency
- Eliminates secondary labeling step
- Reduces labor costs by up to 20–30%
Product Quality
- Scratch-resistant surface
- Waterproof and chemical resistant
- High-end visual appearance
Sustainability
- Fully recyclable (single material structure)
- No glue or adhesive waste
IML vs Other Labeling Methods
| Criteria | In Mould Labeling | Sticker Label | Shrink Sleeve |
|---|---|---|---|
| Durability | Very High | Low | Medium |
| Appearance | Premium | Basic | High |
| Cost (Large Volume) | Low | Medium | High |
| Speed | Fast | Medium | Medium |
| Recycling | Easy | Difficult | Moderate |
IML is the best choice for mass production and premium branding.
In Mould Labeling Cost (Updated 2026)
| Production Volume | Cost per Unit |
|---|---|
| 10,000 – 50,000 pcs | $0.05 – $0.08 |
| 50,000 – 200,000 pcs | $0.03 – $0.06 |
| 200,000+ pcs | $0.02 – $0.04 |
Additional Investment
| Item | Cost |
|---|---|
| Mold Design | $1,000 – $5,000 |
| Printing Plates | $300 – $1,500 |
| Automation Robot | $10,000+ |
IML becomes significantly more cost-effective at scale.
Industries Using In Mould Labeling
| Industry | Application |
|---|---|
| Food & Beverage | Ice cream tubs, yogurt cups |
| Cosmetics | Cream containers |
| Chemicals | Paint buckets |
| Consumer Goods | Storage packaging |
Why Businesses Choose IML in 2026
- Branding demands higher visual quality
- Production automation is increasing
- Sustainability regulations are stricter
- Cost pressure requires process optimization
IML meets all these demands in one solution.
Why Choose Hyuntech for In Mould Labeling?
Hyuntech Vietnam is a trusted manufacturer specializing in IML film and industrial printing solutions.
Key Advantages of Hyuntech
- High-quality PP/PET IML films
- Advanced gravure & offset printing
- Stable large-scale production capacity
- Competitive factory pricing
- Technical consulting for IML implementation
Proven Experience
- Manufacturing facility in Hưng Yên
- Expertise in Heat Transfer & IML
- Serving both domestic and export markets
- ISO-standard quality control
Get Expert IML Solutions from Hyuntech
If you are exploring how in mould labeling works and want to apply it in real production, Hyuntech offers complete support—from material selection to technical optimization.
Contact Hyuntech today to:
- Receive detailed quotations
- Get free technical consultation
- Optimize your packaging cost and quality
Read more:
———————————-
HYUN-TECH HOLDINGS., JSC
Office: Facility 1: Lot BT11, Eurowindow River Park Urban Area, Đông Anh, Hà Nội, Vietnam
Factory: 312 Nguyễn Văn Linh, Đường Hào, Hưng Yên
Heat Transfer Processing Workshop: Thôn Đoài, Vĩnh Thanh, Hà Nội
Hotline: 0332.837.260 – 08888.1.3333
Website: https://hyuntech.com.vn
Email: contact@hyuntech.com.vn
Facebook Fanpage: https://www.facebook.com/hyuntechprint
#IML #heattransferprinting #printplastic #inmoldlabel #hyuntech #heattranfer #manufacturingfactory #QA #OEM #HyunTechHungYen
Bài viết cùng chủ đề
-
Heat Transfer Printing on Plastic Bottles
-
Heat Transfer Film for Plastic Packaging: Applications & Benefits
-
IML Labelling: Process, Cost 2026 & Top Supplier
-
Plastic Container Printing Solutions for Packaging
-
Packaging Printing Technologies: Which One Fits?
-
In Mould Labeling Explained: Why Brands Are Switching