Precise Film Shrinkage Tester for Plastic Packaging

1. Product Overview: Film Shrinkage Tester

ASTM D2732 Film shrinkage tester is a specialized instrument designed to measure the thermal shrinkage properties of plastic films. This test is crucial for evaluating how plastic packaging materials respond to heat, ensuring they maintain their integrity and performance under various conditions. The film shrinkage tester provides precise and reliable data, which is essential for quality control and product development in industries that rely heavily on plastic packaging.

film shrinkage tester for plastic packaging

The importance of a film shrinkage tester in the context of plastic packaging cannot be overstated. It helps manufacturers ensure that their packaging materials will perform well under thermal stress, thereby protecting the integrity of the packaged products.

2. Introduction

Cell Instruments is a leading manufacturer of materials testing instruments, specializing in packaging material testing, medical device materials and packaging, pharmaceutical testing, adhesives, textiles, and more. Our expertise in the field ensures that we provide the highest quality instruments designed to meet the rigorous demands of various industries.

Thermal shrinkage testing is critical in plastic packaging. It determines how packaging materials respond to heat, which is essential for applications such as food and beverage packaging, medical device packaging, and more. Ensuring that plastic films do not shrink excessively or unevenly under thermal stress is crucial for maintaining the quality and safety of packaged products.

3. Technical Specifications

Main Parameter

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


Our film shrinkage tester is equipped with advanced features to provide accurate and consistent results.

  1. Precise P.I.D. Temperature Control: Offers accurate and stable temperature control, crucial for repeatable results.
  2. High-Precision Timer: Facilitates accurate timing for the shrinkage process, ensuring consistency.
  3. Alarm Capability: Enhances safety and efficiency by alerting users to the completion of tests or any anomalies.
  4. Consistent Fluid Medium Heating: Ensures uniform heating, which is vital for reliable test outcomes.
  5. Standard Square Metal Clamp and Free Shrink Holder: Provides reliable sample positioning and consistency in testing.
  6. Equipped with Oil Bath Cover: Prevents heat loss and contamination, ensuring a stable testing environment.

4. Applications – Plastic Packaging

The film shrinkage tester is invaluable in the plastic packaging industry. It is used to evaluate the shrinkage properties of various packaging films, ensuring they meet the required standards and perform adequately under thermal stress. This application is crucial for maintaining the quality of packaging in food and beverages, pharmaceuticals, medical devices, and other sensitive products.

5. Test Methods and Standards – ASTM D2732

ASTM D2732 is the standard test method for determining the unrestrained linear thermal shrinkage of plastic film and sheeting. This method involves heating a film sample in a controlled environment and measuring its shrinkage.

Procedure Overview

  • Sample Preparation: Cut the film to the specified dimensions. (100mm*100mm)
  • Heating: Expose the sample to a controlled temperature in a fluid medium.
  • Measurement: Measure the linear shrinkage after a set period.
  • Calculation: Determine the percentage of shrinkage based on initial and final dimensions.

ASTM D2732 ensures that the film shrinkage tester provides accurate and standardized results, which are critical for quality assurance in plastic packaging.

6. Customization Service

At Cell Instruments, we understand that different industries have unique testing requirements. Therefore, we offer customization options for our film shrinkage testers to meet special testing needs. Our customization services include:

  • Tailored sample holders and fixtures
  • Specialized testing protocols
  • etc…

These options allow us to provide solutions that are perfectly aligned with your specific testing requirements, ensuring optimal performance and reliability.

7. Why Choose Cell Instruments

Expertise in Materials Testing Instruments: With years of experience and a deep understanding of materials testing, we design and manufacture instruments that meet the highest standards of precision and reliability.

Commitment to Quality and Innovation: We continuously innovate and improve our products to ensure they incorporate the latest technological advancements and meet the evolving needs of our clients.

Customer Support and Service Excellence: Our dedicated customer support team is always ready to assist you with any queries or issues, ensuring you get the most out of your investment in our instruments.

8. FAQ

Q1: What is the purpose of a film shrinkage tester?

A: A film shrinkage tester measures the thermal shrinkage properties of plastic films to ensure they maintain integrity under heat, which is essential for quality control in plastic packaging.

Q2: How does the ASTM D2732 standard apply to film shrinkage testing?

A: ASTM D2732 provides a standardized method for measuring the unrestrained linear thermal shrinkage of plastic films, ensuring accurate and reliable test results.

Q3: What industries benefit most from using a film shrinkage tester?

A: Industries such as food and beverage packaging, pharmaceuticals, medical devices, adhesives, and textiles benefit significantly from using a film shrinkage tester.

Q4: Can the film shrinkage tester be customized for specific testing needs?

A: Yes, Cell Instruments offers customization options to tailor the film shrinkage tester to meet specific requirements, including specialized sample holders and testing protocols.

Q5: Why is precise temperature control important in film shrinkage testing?

A: Precise temperature control is crucial to ensure consistent and accurate results, as even minor variations in temperature can significantly affect the shrinkage properties of plastic films.

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