Ribbon ink adhesion monitoring program

[China Packaging Network News] Ribbon is a kind of printing consumables we are more familiar with, many food, medicine, and chemical industries use their printing production date or shelf life, and do not prevent the ink layer from falling off and affect sales, and we should strictly monitor ribbon inks. Layer adhesion. This article uses Labthink Languang XLW (EC) intelligent electronic tensile testing machine to test the ink adhesion of the ink ribbon, and details the test process, test principle, equipment parameters, etc., and the company can refer to it when verifying the adhesion fastness of the ink layer. .

1, the status quo

The composition of the ribbon is very simple. It is made by immersing and dyeing the base tape made of nylon yarn as a raw material after the ink is immersed. Its working principle is to use the dot matrix striker in the needle printer head or the letter striker in the English typewriter to hit the print ribbon and produce a print effect on the print paper. The field of application has evolved from the original single print document to ticket, ticket, label, invoice, card, etc. Its substrates are developed from single paper to plastics, fibers, composites, fabrics, calendered materials, etc. Ribbons are divided into four categories, which are suitable for different materials.

The first type of FR wax-based thermal transfer ribbons: suitable for paper, leather and other materials; temperature range: 90 ~ 120 °C; Features: Print clear, strong adhesion, cost-effective, but the characters easily printed film hollow.

The second type FC2 resin based thermal transfer ribbon: suitable for paper, polyethylene film (PE), polyvinyl chloride film (PVC) and other materials; temperature range: 110 ~ 160 °C; features: clear print, strong adhesion , but with a slight sticky tape.

The third type FC3 resin-based thermal transfer ribbon: suitable for aluminum foil (AL), polypropylene film (PP), polyester film (PET), polyethylene film (PE), polyvinyl chloride film (PVC) and other materials . Temperature range: 110 ~ 160 °C; Features: performance with SCF900, but the adhesion is slightly worse than the SCF900 ribbon.

The fourth type SCF900 resin-based thermal transfer ribbon: suitable for aluminum foil (AL), polypropylene film (PP), polyester film (PET), polyethylene film (PE), polyvinyl chloride film (PVC) and other materials . Temperature range: 120 ~ 180°C; Advantages: excellent abrasion resistance, clear printing, resistance to cooking, freezing at minus 20°C Available.

Figure 1 ribbon

2, testing standards

This article uses the GB 8808 "soft composite plastic material peel test method" to test the internal ink ribbon adhesion.

3, test sample

Two ribbons of 25 mm width and 30 mm width provided by a factory.

4, test equipment

Jinan Languang Electromechanical Technology Co., Ltd. independently researched and developed the XLW (EC) intelligent electronic tensile testing machine.

Figure 2 XLW (EC) Intelligent Electronic Tensile Testing Machine

4.1 Test principle

The sample is clamped between the two clamps of the clamp. The two clamps move relative to each other. The force value sensor and the built-in displacement sensor on the movable clamp are used to collect the force value change and displacement during the test. Changes were made to calculate the properties such as adhesion, peel strength, elongation, and deformation rate of the sample.

4.2 Application

(1) This equipment is professionally used for plastic film, composite materials, soft packaging materials, plastic hoses, adhesives, adhesive tapes, stickers, medical patches, release papers, protective films, combination covers, and metal. Adhesion, peeling, peeling force, stretching, deformation, tearing, heat sealing, bonding, puncture force, opening force, low speed unwinding of foil, diaphragm, backing material, non-woven fabric, rubber, paper and other products Tests for the performance of forces, such as the tearing force of the oral liquid lid, the puncture/pulling force, the puncture force of the infusion bag cover, and the puncture/pulling force of the soft rubber stopper.

(2) The equipment meets many national and international standards such as GB 8808, GB/T 1040.1, GB/T 1040.2, GB/T 1040.3, GB/T 1040.4, GB/T 1040.5, GB/T 4850, GB/T 12914, GB/T 17200, GB/T 16578.1, GB/T 7122, GB/T 2790, GB/T 2791, GB/T 2792, GB/T 17590, ISO 37, ASTM E4, ASTM D882, ASTM D1938, ASTM D3330, ASTM F88, ASTM F904, JIS P8113, QB/T 2358, QB/T 1130, and the like.

4.3 Equipment Parameters

l The test specifications of the equipment are 50 N and 500 N. Customers can choose according to the needs of the test.

l The test accuracy of the equipment is better than 0.5, which ensures the accuracy of the test data.

l The equipment supports pull and press bidirectional test modes. There are seven test speeds for the user to freely set the pulling and pressing directions. They are 50 mm/min, 100 mm/min, 150 mm/min, 200 mm/min, respectively. 250 mm/min, 300 mm/min, 500 mm/min.

l The device integrates eight independent test programs such as stretching, peeling, tearing, heat sealing, and puncture resistance, providing users with a variety of test items to choose from.

l This equipment adopts the pneumatic sample clamping mode to prevent the sample from slipping and ensure the accuracy of the test data.

l Intelligent configuration such as limit protection, overload protection and automatic return to ensure user's operation safety.

l Supports LystemTM laboratory data sharing system for unified management of test data.

5, the test process

(1) Take 5 samples of 24 mm × 100 mm size ribbons.

(2) Take a tape with the same width (a force value of about 3 N) and bind the sample with a YGJ-02 adhesive tape roller with a standard load, a rolling speed, and a number of rolling times.

(3) Sandwich the tape and ribbon with the upper and lower clamps of the device so that the long axis of the sample coincides with the centerline of the two clamps.

(4) Set parameters such as sample name, sample thickness, test temperature, and test humidity.

(5) Click on the test start option. The test begins. The equipment automatically tests the force values ​​during stripping of the sample and reports the final test results.

6, test results

The results of the two ribbon samples were as follows: 30 mm ribbon peel force 0.037 N, 0.034 N, 0.040 N, 0.033 N, 0.041 N; 25 mm ribbon peel force 3.619 N, 3.046 N, 2.917 N, 2.878 N, 2.808 N .

7. Conclusion

From the above test results, the 25 mm ribbon peel force is greater than the 30 mm ribbon peel force, indicating that the 25 mm ribbon ink layer has higher adhesion than the 30 mm ribbon. The 25 mm ribbon is less likely to cause film peeling than the 30 mm ribbon. The phenomenon. XLW (EC) intelligent electronic tensile testing machine equipment is simple, high test accuracy, good repeatability. As an excellent supplier of packaging inspection equipment, Labthink has always been committed to providing professional, high-end packaging testing equipment and testing services to global customers, as well as related testing equipment and testing services. You can log in or consult. The more you understand, the more you trust! Jinan Languang Electromechanical Technology Co., Ltd. would like to take this opportunity to enhance the technical exchanges and cooperation with enterprises and institutions in the industry.