In the field of packaging and plastic film manufacturing, product quality and safety are essential. For companies that produce plastic films, it is critical to test the durability of materials to ensure they can withstand impact during transportation and handling. This is where the Dart Impact Tester from Pacorr becomes an important part of the quality control process.
The Dart Impact Tester is designed to evaluate the impact strength of plastic films and sheets by simulating sudden impacts. Whether you are a manufacturer of plastic bags, flexible packaging, or industrial films, knowing how to use a Dart Impact Tester can significantly enhance the quality and reliability of your products.
What is a Dart Impact Tester
A
Dart Impact Tester is a testing instrument used to determine the impact resistance or puncture strength of thin plastic films. The test involves dropping a hemispherical dart from a set height onto a plastic film sample and recording the result. The main goal is to find the weight at which the film fails under impact.
Pacorr provides Dart Impact Testers that conform to international testing standards like ASTM D1709 Method A and Method B, ensuring accurate and dependable results.
Applications of the Dart Impact Tester
The Dart Impact Tester is widely used across various industries. Its main applications include
- Plastic bag manufacturing
- Food packaging film production
- Industrial lamination films
- Agricultural mulch films
- Pharmaceutical packaging
- Flexible pouch production
Why Dart Impact Testing is Important
Testing the impact resistance of plastic films is important because these materials are often used for packaging and protecting products. Dart Impact Testing helps manufacturers
- Ensure packaging strength during storage and transport
- Avoid product damage or spoilage
- Comply with international quality standards
- Improve customer satisfaction
- Minimize product returns and complaints
Step by Step Guide on How to Use a Dart Impact Tester
Using a
Dart Impact Tester correctly is necessary to get reliable results. Here is a simple step by step process to follow
Step 1 Prepare the Film Sample
Cut the plastic film into square samples as per the required dimensions. Make sure the sample is clean and smooth without any wrinkles or folds.
Step 2 Fix the Sample
Place the film sample in the clamping area of the Dart Impact Tester. Secure it firmly so that it is flat and tight without any slack.
Step 3 Select the Dart Type
Choose between the following types based on the standard you are following
- Type A Dart 38 mm diameter for Method A
- Type B Dart 50 mm diameter for Method B
Step 4 Set the Drop Height
Pacorr Dart Impact Tester supports two main drop heights
- 660 mm for Method A
- 1524 mm for Method B
Choose the appropriate height based on the testing method.
Step 5 Choose the Initial Dart Weight
Start with a dart weight that is estimated to be close to the failure point of the film. You can adjust the weight by adding or removing weight discs.
Step 6 Drop the Dart
Release the dart to let it fall on the film sample. Check whether the sample breaks or remains intact.
Step 7 Record and Analyze the Results
If the film breaks increase the weight and repeat. If it does not break reduce the weight. Repeat this process to determine the weight at which 50 percent of the samples fail.
Testing Standards Followed
Pacorr Dart Impact Tester follows several global testing standards including
- ASTM D1709 Method A and B
- ISO 7765 1
- JIS K 7124
- BS EN ISO 7765
- IS 2508
These standards ensure your products meet international packaging quality benchmarks.
Tips for Better Dart Impact Testing
To achieve accurate results follow these tips
- Always use clean and wrinkle free samples
- Perform tests in a vibration free environment
- Use a minimum of 20 test samples for statistical accuracy
- Calibrate the device regularly
- Record environmental conditions like temperature and humidity
Pacorr offers both manual and computerized models. Here is a quick comparison
| Feature |
Manual Model |
Computerized Model |
| Data Recording |
Manual logs |
Auto data logging |
| Weight Adjustment |
Manual |
Semi automatic |
| Result Calculation |
Manual |
Automatic |
| Best for |
Small labs |
High volume labs |
Real Life Application Example
Client A plastic bag manufacturing company based in Maharashtra
Problem High product rejection due to weak film strength
Solution Used Pacorr Dart Impact Tester to find the right resin formulation
Result Reduced complaints by 40 percent and improved brand trust
Key Benefits of Using Pacorr Dart Impact Tester
- Provides accurate measurement of impact resistance
- Ensures high product quality and safety
- Easy to use design suitable for lab and industrial use
- Supports international test standards
- Available in manual and computerized models
- Helps improve consistency in production
Using a
Dart Impact Tester correctly can make a big difference in the performance and reliability of plastic films. With Pacorr’s advanced Dart Impact Tester manufacturers can gain confidence in their packaging quality while meeting industry standards.
If you are in the business of producing plastic films or packaging materials and want to avoid product failure or quality complaints investing in a reliable testing solution like Pacorr Dart Impact Tester is a smart decision.
FAQ's
Q1. What is the purpose of using a Dart Impact Tester
A Dart Impact Tester is used to evaluate the impact resistance of plastic films. It helps manufacturers determine how much force a film can handle before it breaks, ensuring better packaging quality.
Q2. Which standards does Pacorr Dart Impact Tester follow
Pacorr Dart Impact Tester is compliant with ASTM D1709, ISO 7765, JIS K 7124, and IS 2508 standards, making it suitable for both domestic and international quality requirements.
Q3. How do I choose between Type A and Type B dart
Choose Type A dart for thinner films using Method A and Type B for thicker materials using Method B, based on the testing standard and application.
Q4. Is a computerized Dart Impact Tester better than a manual one
Yes. A computerized model offers automated data logging, result calculation, and report generation, which is ideal for labs that need high-volume testing and accuracy.
Q5. What industries use Dart Impact Testers
Dart Impact Testers are widely used in plastic bag manufacturing, food packaging, pharmaceutical packaging, agricultural film production, and flexible pouch industries.
Q6. What is the weight range used in Dart Impact Testing
Typically, the dart weight range can be adjusted from 5 grams to 2000 grams depending on the film type and testing standard followed.
Q7. Can Dart Impact Testing help reduce packaging failures
Yes. By identifying weak spots in films during quality checks, companies can adjust material composition and reduce product damage during transport.
