A laminate fails when layers separate, the seal opens or the barrier is lower than claimed, and each failure has its own test. Our composite films testing instruments cover those tests in a converter lab. As composite films testing instruments manufacturers in India and suppliers in India, we supply laminators, extruders and packaging test houses.
The range is arranged by problem type. Bond and seal tests, namely T-peel and heat seal with hot tack, show delamination and pouch sealing performance. Mechanical tests use the dart impact tester, Elmendorf tear tester and puncture tester. Handling and appearance are covered by the coefficient of friction tester, thickness gauge and haze meter. The shrinkage oven checks thermal stability and the coulometric OTR tester measures barrier of high barrier laminates.
A laminator normally starts with the bond strength, seal and thickness testers, then adds OTR, haze and friction measurement for customer specifications.
Last updated: November 2026
Measures seal strength immediately after sealing, and sealing temperature windows for laminate films. Used for packaging line setup of pouches and form-fill-seal films. Data helps set sealing temperature and dwell for high-speed packing lines.
Precision contact thickness tester for flexible packaging laminates, reading total thickness with 0.1 micron resolution. Used for incoming and process control at converters. Accurate thickness helps check yield, layer structure and cost per metre.
Sled-on-plane tester measuring static and kinetic friction of laminate surfaces. Used to assure smooth running of films on packaging machines. Results help avoid web slippage or sticking on form-fill-seal machines.
Falling dart apparatus that finds the impact energy at which 50 percent of film samples fail. Used by blown, cast and laminated film producers. It indicates how well a film survives drops and rough handling when filled.
Hazemeter measuring luminous transmittance and haze of clear packaging films and window laminates. Used in food packaging, solar and optical film quality control. Clear grades can be compared quickly against customer specifications.
Measures force and energy required for a probe to puncture laminated films and pouches. Used for retort, vacuum and snack packaging film evaluation. It is useful for sharp-content packs such as bones, powders and hardware.
Fluid or air bath that heats film samples at fixed temperature and measures the percent dimensional change. Used for shrink film, retort pouch and laminate heat resistance. Results show whether a film will stay flat during hot filling or sealing.
Pendulum instrument measuring force required to propagate a tear in films and laminates. Used for packaging film tear quality and easy-open pack evaluation. The result shows how easily a pouch or wrap can be torn open or propagate a nick.
Tensile-type tester measuring delamination force between layers of laminated films. Used by flexible packaging converters making PET/PE, BOPP/CPP and foil laminates. Bond results indicate whether adhesive coat weight and curing are adequate.
Coulometric OTR analyser for high barrier laminates, measuring oxygen permeation in cc/m2.day. Used in food, pharma and electronics packaging film development. It helps verify that films protect oxygen-sensitive food and pharma contents.
Composite film instruments test plastic based laminates for bond strength, seal performance, friction, haze and tear. Foil instruments focus on rolled metal properties like pinholes, roughness and gauge. A laminate containing foil falls under both: the film tests check the layers' adhesion and seal, while the foil tests verify the foil layer before lamination.
See also: Foil Testing Instruments
The complete Composite Films Testing Instruments range (10 products), in alphabetical order:
Look at seal bar temperature range and accuracy, pressure range, dwell time and the ability to run hot tack with a delay time. Check bar width, whether upper and lower bars are independently heated and how the tester reports a seal curve. Standards such as ASTM F2029 and F1921 guide the method.
Choose a low-capacity load cell for flexible laminates, often 50 N to 500 N, with grips for thin films and fixtures to keep the peel angle constant. Check test speed, software that averages peel force and the strip sample width, usually 15 mm. Bond strength is a key complaint check for laminators.
Coulometric sensors suit low transmission rates and are widely used for barrier packaging, in line with ASTM D3985. Check the transmission range, number of test cells, humidity and temperature control and conditioning time. Gas supply of nitrogen carrier and test gas should be planned in the lab.
Flexible packaging laminators, BOPP and CPP film producers, converters making pouches for food, pharma and agrochemicals, brand owners with in-house packaging labs and independent packaging test laboratories. A common first order combines the bond strength, heat seal and thickness testers, followed by OTR and friction measurement for export customers.
It is the strength of a seal just after the sealing jaws open, while the seal is still hot. Vertical form-fill-seal machines depend on good hot tack since the product drops into a freshly made seal.
The slip of the film surface over metal and itself decides how the film runs on packing machines. Too high and it jams, too low and rolls slip. A sled test gives static and kinetic values to compare to specifications.
A dart is dropped from a set height onto film, and the weight at which 50 percent of samples fail is found. The result shows the impact toughness against sudden loads during filling and distribution.
Yes. The instruments are manufactured in India and shipped across the country and to export buyers. We supply datasheets for tenders and can arrange installation and operator training.
Specimens are marked, heated in an oven or fluid bath at a set temperature and time, and their dimensions are remeasured. It shows the thermal stability and orientation release of the film.
Civil Mechanical India is an established manufacturer and supplier for tender requirements from India, handling civil laboratory and industrial testing tenders and bulk and OEM orders for mechanical engineering and testing laboratory equipment. On receipt of your tender specifications, we will submit a complete quotation for Composite Films Testing Instruments.
Send us your equipment list or tender specification. We quote against IS, BS, EN, ASTM and AASHTO standards and ship to 90+ countries.
