Film Analysis

 

Film Analysis

 

 

  

    

  

 

 

 

 

 

 

Gas Permeability Tester

(เครื่องวัดอัตราการซึมผ่านของแก๊ส)


       The GDP-C is designed for testing the permeability of dry gases on films and similar materials according to the manometric principle. The sample is put between the top and bottom part of the permeation cell. The volume of the bottom part is as small as possible and known. Prior to each test the bottom part of the permeation cell is evacuated. During testing the top part is filled with the test gas. The gas permeating the material causes a pressure increases at the bottom part of the permeation cell.

       You can detect the gas permeability by evaluating this increase in pressure in relation to time and the device-specific volume. The increase in pressure during the test period is evaluated and displayed by an external computer. The PC is connected to the GDP-C with a serial interface.
You can adjust the sample temperature within the range of -20°C and 80°C using an external thermostat.

The GDP-C software allows you to control the following processes:
• Setting parameters for different test procedures
• Viewing a graphical representation of the test procedures
• Printing charts with the test graph
• Saving your results in Microsoft Access databases
• Retrieving and editing graphs and results from previous tests.
• Saving edited graphs
• Saving, retrieving and printing special test data (such as pre-conditioning).

 

 

 

 


Water Vapour Permeability Testers

(เครื่องวัดอัตราการซึมผ่านของไอน้ำ)


       You can use the WDDG to determine the WVTR (of up to 10 g/m2 d) for your specimen. The sample is put between the top and bottom part of the permeation cell. A constant water-vapour pressure (RH) is adjusted in the upper part of the permeation cell using saturated saline or defined sulphuric acid solutions. The carrier gas (nitrogen 5.0) is pre-dried inside the WDDG. Then the carrier gas is fed into the bottom part of the permeation cell. The flow of carrier gas absorbs the water vapour that permeats through the sample and transmits it to the Keidel electrolytic cell. There the amount of water vapour is quantitatively recorded. The electronic system registers the current and displays the WVTR directly in the corresponding unit (grams of water as per square meter and day) using a 7 segment display.

       The test duration depends on the WVTR of the inserted specimen. At the beginning of the test the displayed value continuously increases. You can track this increase of the WVTR with a plotter. As soon as the procedure has reached the final value (no further increase), you can stop the test.

       You can adjust the sample temperature within the range of -25°C and 60°C using an external

 

 

 

 

 

Heat-Sealing Machine

(เครื่องทดสอบการปิดแผ่นฟิล์มด้วยความร้อน)


       The HSG-C is designed for testing the heat seal ability of varnished or coated films. The HSG-C has a removable pair of sealing jaws which temperature may be individually set between ambient temperature and 300°C. In addition, you may control the dwell time and the sealing force. The actual and set temperatures as well as the dwell time and sealing force are shown in the display.

       If your lab is not equipped with a compressed-air supply, use our special HSG-C Compressor Version. You may wish to obtain our special software to evaluate the results for documentation purposes. For sealing jaws with a smooth surface the sealing pressure will be automatically calculated and displayed from the set sealing force.


       Test the seam strength of the sealed samples with our Universal Tensile Tester VNG-E.


       An optional Hot Tack Device can be obtained as an accessory.


       Also, an optional load cell enables you to adjust the force display any time. You may adjust the Temperature, Force and Time parameters with our newly developed HSG-P testing device.

 

 

 

 


Universal Tensile Tester

(เครื่องทดสอบแรงดึงในทิศทางเดียว)


       This compact universal tester is especially designed for testing flexible materials, such as paper or plastic films, as well as laminated materials produced therewith. You can use a single device to determine all relevant material properties.

       This tensile-testing machine has primarily been developed to determine the bond strength, seam strength and the slip of packaging materials. The software allows you to store your results to a database for documentation purposes. Standard film strips for testing the bond strength and seam strength as well as tensile strength may be prepared with our Strip Cutter (STR) according to applicable industry standards..


The software allows you to control the following tasks:

• Setting parameters for different test procedures
• Starting and exiting of different test procedures
• Viewing a graphical representation of the test procedures
• Printing charts with the test graph
• Saving your results in Microsoft Access databases
• Retrieving data from previous tests

 

 

 

 

Flex Durability Tester

(เครื่องทดสอบความแข็งแรงของบรรจุภัณฑ์)


       The Flex Durability Tester simulates stress, which flexible packaging materials (such as coated or vapor-coated paper, plastic films and laminated material) may be subject during the automated packaging process. The KFT-C covers the determination of the flex resistance of flexible barrier materials with a high repeatability.

       After the test, any failure of the barrier can be determined by a gas permeability test (using our GDP-C tester) and/or by a water permeability test (using our WDDG tester). Physical holes through the material can be detected by the colored-turpentine-pinhole test.


       The device uses a stationary and a movable mandrel of 90 mm diameter each. The specimen is affixed between the two mandrels in the shape of a cylinder. To do this, both ends of the specimen will be affixed with a locking onto each mandrel. In this initial position, the distance between the mandrels is approx. 180 mm (face to face). Two different motion cycles are described in the ASTM F 392-93 standard: One motion cycle uses a twisting angle of 400° and a horizontal move of 80 mm simultaneously (short stroke). The other motion cycle uses a twisting angle of 440° and a horizontal move of 90 mm simultaneously, followed by a single horizontal movement of 65 mm without twisting (long stroke). The frequency for both motion cycles is at a rate of approximately 45 cpm. A logic module interprets the information from 7 different contactless switching sensors and controls the valves for both pneumatic linear actuators. Using the selector switch, the 5 different standard testing conditions can be set. Additionally the operator can choose any desired numbers of cycles for both different types of motion cycles. The actual testing condition is shown in the LCD-display on the logic module. During a running test the current number of cycles is also indicated in this LCD-display.

 

 

 

 


Burst Pressure Tester

(เครื่องทดสอบแรงดันอากาศ)


       This unique device has been developed especially for producers of artificial casings for the meat industry.

       The FKP simulates the meat filling process for artificial casings at automatic sausage-filling equipment.


       The principle is based on the determination of the increase in calibrate in relation to the fill pressure. Any leaks of the material are detected during the filling process. The decline in pressure is shown on the screen.


       The external computer controls the FKP and evaluates your data. The PC is connected to the FKP with a serial interface. Using a Special Version (FKP-WB) you may also test the increase in calibrate in relation to the temperature.


The software allows you to control the test. Examples:

• Starting and exiting the test procedure
• Viewing graphs with test details
• Saving test values and graphs
• Viewing and printing saved graphs
• Setting limits
• Adjusting the values for pressure and calibrate

 

 

 

 

Carrying Strength Tester

(เครื่องทดสอบความทนทานของบรรจุภัณฑ์)


       The TPG-U allows you to determine the strength of handles on packaging material, such as carrier bags.

       An up and down movement simulates the stress on handles. Examples are handles on filled carrier bags.


       The cycle frequency and the drop height can be preset within a wide range; after reaching the preset number of strokes the device automatically stops the test procedure.