Cell Instruments Co., Ltd.
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The Film Shrinkage Tester, also referred to as a thermal shrinkage Tester, is a precision laboratory instrument designed to measure the unrestrained linear thermal shrinkage properties of plastic films and sheets when exposed to controlled heating conditions. This test is essential for evaluating the dimensional stability of packaging films under thermal stress.
Film shrinkage and thermal shrinkage analysis are critical in industries such as packaging, food, medicine, beverages, and material science, where films are commonly used as wrapping, sealing, or protective layers. By determining how films react when subjected to specific temperatures, manufacturers can ensure that packaging maintains its integrity during filling, sealing, storage, and transportation.
This thermal shrinkage Tester strictly complies with ASTM D2732, ISO 11501, and GB/T 13519, which are globally recognized standards for shrinkage testing of plastic films. Its advanced design ensures repeatable, accurate, and stable results that meet both research and industrial requirements.
Thermal shrinkage testing provides valuable insights into the dimensional stability, performance, and usability of polymer-based packaging films. When films shrink excessively under heat, they can lead to product deformation, sealing failures, or reduced barrier protection. For packaging applications, particularly in food and pharmaceutical sectors, such failures can result in product spoilage, contamination, or compromised shelf life.
By using a thermal shrinkage Tester, manufacturers can:
Ensure consistent packaging quality by identifying films with unacceptable shrinkage properties.
Improve production efficiency by selecting the right materials for high-speed packaging lines.
Comply with international testing standards (ASTM D2732, ISO 11501) for quality certification.
Develop innovative films with controlled shrinkage for specialized applications such as shrink-wrap labels, tamper-evident seals, and protective wrappings.
The ISO 11501 Film Free Shrinkage Tester offers state-of-the-art testing performance with the following core features:
Precision P.I.D. Temperature Control – Ensures stable and accurate heating of the testing medium.
High-Precision Timer – Guarantees repeatable and consistent exposure times.
Alarming Function – Provides safety assurance during testing.
Stable Fluid Medium Heating – Maintains uniform temperature for reliable shrinkage evaluation.
Standard Metal Clamps and Shrink Holders – Securely fix samples for accurate shrinkage measurement.
These features make the thermal shrinkage Tester highly reliable for both research laboratories and industrial quality control facilities.
| Sample Size | ≤160 mm x 160 mm |
| Temperature Range | Ambient ~ 200°C |
| Accuracy | ±0.3°C |
| Dimension | 37*44*28 LWH cm |
| Power Supply | 220V 50Hz |
The Film Shrinkage Tester is designed in accordance with the following standards:
ASTM D2732 – Standard Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film and Sheeting.
ISO 11501 – Plastics — Film and Sheeting — Determination of Dimensional Change on Heating.
GB/T 13519 – Chinese national standard for free shrinkage testing of plastic film.
This ensures that test results are internationally recognized and can be used for compliance, certification, and R&D documentation.
The thermal shrinkage Tester has wide-ranging applications in industries that rely on plastic packaging films:
Food Packaging: Ensuring shrink wraps, sealing films, and multilayer laminates maintain shape and barrier properties under heat.
Pharmaceutical Packaging: Evaluating blister packs, medical pouches, and protective films for dimensional stability.
Beverage Packaging: Testing shrink labels and bottle wraps for uniform fit and performance during hot-fill or pasteurization processes.
Material Research: Supporting laboratories in studying polymer behavior under thermal stress for product innovation.
Education and Research Institutes: Providing universities and training centers with reliable equipment for teaching material science and packaging engineering.
Improved Quality Control: Detects poor-quality films before they enter production.
Cost Reduction: Prevents packaging failure-related losses.
R&D Support: Facilitates development of high-performance films with tailored shrinkage characteristics.
Global Standard Compliance: Meets ASTM, ISO, and GB/T requirements for film shrinkage testing.
User-Friendly Operation: Intuitive controls and safety features make testing simple and reliable.
As a trusted provider of material testing instruments, our thermal shrinkage Tester offers unmatched reliability and compliance with international standards. Backed by years of expertise in packaging and polymer testing, we provide equipment that not only meets regulatory requirements but also delivers the precision and stability that laboratories and manufacturers demand.
By choosing our instrument, customers benefit from:
Advanced technology with precise results.
Durable build quality suitable for continuous use.
Professional technical support and application guidance.
Customizable solutions to meet specific research or production needs.
To ensure long-term performance of your thermal shrinkage Tester, follow these best practices:
Regularly calibrate the temperature control system.
Use recommended fluid mediums for consistent heating.
Clean clamps and sample holders after each test to prevent contamination.
Follow safety protocols when handling heated fluids.
Schedule periodic servicing to maintain accuracy and reliability.
Q1: What materials can be tested with a thermal shrinkage Tester?
A1: The tester is primarily used for plastic films, laminated sheets, and flexible packaging materials.
Q2: Why is ASTM D2732 important in shrinkage testing?
A2: ASTM D2732 ensures that shrinkage testing follows a globally accepted method, making results comparable and reliable for international trade.
Q3: How does thermal shrinkage affect packaging performance?
A3: Excessive shrinkage can cause film deformation, seal failures, and reduced barrier properties, leading to compromised packaging integrity.
Q4: What industries benefit most from film shrinkage testing?
A4: Food, pharmaceutical, beverage, packaging manufacturing, and research institutions all benefit from shrinkage testing.
Q5: How accurate is the thermal shrinkage Tester?
A5: The system provides ±0.3°C accuracy, ensuring reliable and repeatable test results.