Causes of Label Bubbling, Wrinkling & Misalignment in IML Production
Author:SWITEK
|
發佈時間:2026.08.26
|
Views:980
Q
What Causes Labels to Exhibit Bubbling, Wrinkling, or Misalignment During In-Mold Labeling (IML) Production?
A
This is the most common quality defect issue in IML automated production, mainly caused by the following 3 core factors: electrostatic positioning, material temperature control, and mold cooling.
01. Static Electricity / Uneven Suction Misalignment & Bubbles
IML robots usually rely on static electricity or vacuum suction when feeding labels. If the static voltage is unstable or mold venting is poor, the labels cannot be stably positioned in the mold cavity, prone to misalignment or bubbles generated due to residual air.
02. Material & Temperature/Pressure Mismatch Fusion Wrinkling
If the compatibility between the label material and the injection molding resin is poor, or if the temperature and pressure during the injection molding process are insufficient, it will lead to insufficient fusion between the label and the molten plastic, thereby causing surface wrinkling.
03. Uneven Mold Cooling Deformation Wrinkling
Mold water channel design or uneven cooling will cause plastic containers to develop minor warping during molding and cooling, which in turn pulls and stretches the already attached labels, causing label deformation and wrinkling.
SWITEK Contact Information
WhatsApp/WeChat/Phone: +86 18665171961
Website: www.switek.com.cn
Address: No. 5, Tangbian Nanwei Industrial Park, Chashan Town, Dongguan City, Guangdong Province
×
Contact Us
Scan WhatsApp QR to Contact Us
更多資訊
[技術支援]
Key Considerations when Choosing a Servo Robot for Injection Molding
2026.8.26
[技術支援]
15 Common Defects & Solutions in IML Injection Labeling
2026.8.26
[技術支援]
Limitations of In-Mold Labeling: Which Scenarios Are Not Suitable?
2026.8.26
[技術支援]
4 Core Advantages of In-Mold Labeling: Why Brands Choose It
2026.8.26
- 客服
- 頂部