To test the quality of the paper and decides its economic value, paper stiffness tester is used. The ability of the paper and paper boards to resist the bending is measured using this instrument. To perform the test, the specimen is mounted on the tester using the clamping system. The lower faces of the clamp jaws are the centre of the rotation, it is located on the pendulum. This assembly makes sure that the test and angle of deflection are constant for accurate test results. To start the test, the load is applied on the lower end of the specimen. Irrespective of the thickness of the sample, the jaws make sure that it precisely placed in the centre.
It also complies with various national and international testing standards such as, ASTM F 2338-09(2013), ASTM D 4991-07(2015) and ASTM D6653.
How it works:
The Presto leak detector and seal integrity testing unit is a high-quality machine that consists of a clear acrylic vacuum chamber and system, a control valve, and an indicator gauge. Packages to be tested are simply placed in the clear acrylic vacuum tank, the lid is closed and vacuum engaged. You can then choose which testing method to use based on your company’s standards and requirements. A complete test can be accomplished in just a matter of seconds with immediate results!
Testing Standards (Methods):
ASTM F 2338-09(2013) – Non-destructive Detection of Leaks in Packages by Vacuum Decay Method.
ASTM D6653 - Test methods for determining the effects of high altitude on packaging systems by vacuum method.
ASTM D 4991-07(2015) – Destructive Leak integrity test by vacuum method for empty rigid containers. Leaks are detected under differential pressure conditions.
Testing Specimen Types:
Stand-up pouches, packages with modified atmosphere packaging (MAP), rigid trays, vacuum skin packs, thermoform packages, sachets, flow wraps, form fill seal (VFFS) and reclosable packages.
The TP800 Portable spectrophotometer is patented device that is designed and manufactured by Testronix. The most prominent features of the device incorporate high-performance stability, precision in measurement, and other powerful functions in best class of the industry they are used in.
During the research and development process of the product, the engineers and scientists have performed several measurements on a variety of samples of colors such as white and black, dark and light and several other color boards standardized by ISO. The parameters, according to which the test procedure is conducted, are in strict compliance with the international standards.
R&D team of TESTRONIX has also done a detailed analysis of portable spectrophotometers with different standards such as Japanese, American, German standards. The L*ab value had a difference under ±1.5 between the standards of different countries but when TP800 was compared with Japanese spectrophotometer, during the measurement of any colored object, the highest difference between the L*ab values was found to be ±1.0. This is a testimonial for highly advanced technology and quality used by Testronix that strictly adhere the standards of international market.
The TP800 portable spectrophotometer has been used in many major industries such as textile manufacturing, textile processing, paint industries, electronics, plastics, food, medical equipment, educational institutions and research institutes, etc. reflectance spectrum as well as other color indices can be measured using this product in a very precise manner. The instrument can not only help in matching the color and color management, but it is also an effective tool for efficient management of controlling the product quality. The equipment comes with a high-class software for color management that can be connected to the computer so that more extended function could be achieved.
The Presto Dart Impact Tester is used for determining the impact of a free falling dart on a plastic film. The energy of the falling dart causes the film to fail under specified conditions. The dart has a hemispherical head and is held by a strong electromagnetic dart holder. The dart is released from the holder at the press of a button. It can be dropped from variable heights.
The Presto Dart Impact Tester is widely used by plastic film manufacturer for assessing the strength and durability of their plastic films and similar other products.
Presto Dart Impact Tester has been built on a rigid metallic base. It is highly recommended for evaluating the impact resistance and impact failure load of polyethylene films under specified conditions.
PRESTO Dart Impact Tester is widely used by plastic film manufacturer for assessing the strength and durability of their plastic films, flexible films, sheets and similar other products. Works according to both Method-A and Method-B of test standard.
The equipment has been given an autumn gray, and blue combination finish and the chrome/zinc plating ensures resistance to corrosion. The instrument comes complete with an instruction manual, electric wiring diagram and a calibration certificate traceable to NABL approved labs.
The Presto Tensile testing Machine is highly recommended for evaluating the tensile strength of products and materials. The equipment is based on the Constant Rate of Traverse (CRT) principle. It is equipped with an upper jaw and a lower jaw.
While the upper jaw is stationary, the lower one can be moved at a designated fixed speed with the help of a motor. The test specimen is held between the two jaws. The lower jaw is gradually made to move to evaluate the tensile strength of the sample.
The motor is equipped with a gear Box and a lead screw arrangement. The machine also incorporates a special sensor, connected with a load cell. The sensor is capable of judging the load exerted on the stationary jaw and directly indicating the reading in kgs (in digital format).
There are special case hardened lead screws which ensure stability and durability. It incorporates a standard branded motor and CE standard electrical wiring. The completely modular construction of the Presto Tensile Testing Machine ensures trouble free maintenance and easy operation.
Presto Tensile testing Machine is highly stable machine, built using heavy mild steel. Its strength and high quality can be attributed to the various built in safety arrangements, such as over load and over travel protection.
The Presto Tensile testing Machine has an Autumn Gray & Blue combination finish and bright chrome / zinc plating has been added to impart a corrosion resistant finish.
The Instrument comes complete with Instruction Manual; Electrical Wiring Diagram & Calibration Certificate traceable to NABL approved Labs.
The Presto grammage checking kit comprises of the GSM round cutter along with Digital weighing balance. GSM round cutter with imported industrial blades to give you a very accurate & seamless cut off your samples. All the components are made of Stainless Steel, and the main Body is made of Aluminum. Very Light Weight Unit for ease in operations.
Ink Abrasion Resistance Tester is designed specifically for measuring the resistance against rubbing and scuffing. This instrument can be efficiently utilised for identifying the properties of the printed material against different physical condition. These conditions may lead to deterioration of the printed material. To make inks and printing technology withstand different conditions, abrasion tester can be used. It has noiseless application and ensures uniform load distribution throughout the test area. It can determine the quality of the ink and other photosensitive coatings. Bonding of ink with printable surface is put to test. Rub resistance describes the ability of printed material to withstand marking, scuffing or smudging during handling in conversion, packaging, distribution and use. It simulates a similar environment to test the rub resistance on printed materials.
Presto Adhesion Strength Tester is used to quantify the permanence of adhesion or peel ability of self- adhesive pressure sensitive materials. Peel adhesion is defined as the force required for removing a pressure sensitive coated material, which has been applied to a standard test plate under specified conditions, from the plate at a specified angle and speed. Presto Adhesion Strength Tester is strictly manufactured as per ASTM standards and is highly recommended for use in the plastic packaging industry.
The Presto Adhesion Strength Tester is built on a rigid metallic base plate and finished in Autumn Gray & Blue combination painting, the instrument has a bright chrome / zinc plating to give it a corrosion resistant finish. The tester comes complete with Instruction Manual; Electrical Wiring Diagram & Calibration Certificate traceable to NABL approved Labs.
Cone Crush Tester (Digital Model) is a highly proficient machine which is utilized for calculating the crushing strength of cardboard cones, paper tubes, bobbins and other core packaging material. The working mechanism of the instrument is based on the radial crush testing method. Unlike other crush testers, this machine is designed in such a way that the generated force is applied on 66% of the specimen surface. The machine offers such an accuracy level that even a minute collapsing point can be easily detected and recorded. The accurate detection is achieved using a Load cell and Microprocessor based digital indicator equipped with the testing device. The machine is operated with advanced digital controls with feather touch operations.
Heat Sealer Prima is a consistent tool used to perform sealing on flexible packaging products and other thermoplastic materials using pressure and heat by maintaining high temperatures. A heat sealer is used to measure the heat seal performance of composite films, plastic films such as PP, PE used in packaging different food products such as milk powder, instant noodle, food, washing powder, and drugs.
The Presto (Pneumatic Model laboratory) Heat Sealer is widely used in the plastic industry. The temperature of the Presto Heat sealer is also adjustable. The instrument has been provided with Digital Display and is Microprocessor based.
Both the upper and lower jaws of the Presto Heat sealer are heated separately with separate temperature sensors and controllers. Thus, it is possible to maintain both jaws at different temperatures. It is even possible to switch off one heater, while keeping the other on.
The Presto Drop Tester (As per IS:7028 Pt IV) is a useful equipment for ascertaining the transport worthiness of corrugated & solid fiber boxes and shipping containers. It has provision with angular drop arrangement to help accurately ascertain the transport worthiness of the package from all angles.
Drop tester is widely used in several industries to test and to substantiate the potency of plastic bottles and corrugated boxes. The machine operates by dropping a test specimen from a certain height to ascertain the strength of the specimen. The testing equipment can be customized and made available in different specifications as per the demand of the customer.
The term scuffing is the rubbing of two materials against each other. Scuff Resistance Tester is used to evaluate the rub resistance (i.e. the damage which has taken place through rubbing) of labels and general printed matter.
Presto Scuff Resistance Tester rubs two printed surfaces against each other (face-to-face) in the same plane, at the same speed under a constant rubbing pressure. The scuff tester can be used in Paper & Packaging industries to evaluate color transfer from printed or coated surfaces during rubbing. It is designed and produced according to ASTM Standard and measures the number of double strokes required to cause Fuzz (distortion of appearence) and Peel (actual rupture of the surface).
With the help of Presto’s Scuff Resistance Tester, the manufacturers can easily ensure the best quality of printed products to the clients.
Conditioning chamber is an ideal environmental chamber incorporated with the latest technology, used to create the designated temperature. Presto’s Humidity Chamber has the lowest heat loss ratio due to high quality of insulation with imported glass wool. Chamber has a sealed compressor unit for high speed ‘almost instant’ cooling. Ergonomics and user ease are given a lot of importance while designing the system. It has complete DIGITAL controls.
Conditioning chamber maintains testing samples at a particular temperature and humidity level. The environmental conditions play a crucial role in affecting both the physical and chemical properties of materials and the humidity chamber can conveniently replicate such environmental conditions for testing purposes. Conditioning Chamber is used for textile fabric materials after process completion; the main task of this chamber is to remove the moisture level in the sample. With the help of an efficient humidity chamber, the manufactures can easily ensure the best quality of products delivered to their clients.
Cobb sizing tester is used for fast determination of the quantity of water absorbed by a paper or board in a given time. The Water absorptiveness (Cobb value) of a substance is defined as the mass of water absorbed in a specific time by a 1 sq. meter sample of paper, board or corrugated board, under standardized conditions.
Cobb Tester measures the amount of liquid penetration into a sheet of Paper, Cardboard or Corrugated Board. The Cobb sizing Tester consists of a cylindrical container clamped to a flat base with a flexible backing onto which the sample is placed. Cobb sizing tester provides a simple, standardized method for fast determination of the quantity of water absorbed by a paper or board at a given time.
Vibration simulation is an efficient and cost-effective way of determining damage caused by the repetitive movement in the vehicles. In just a few hours we can pinpoint potential damage areas in your package or product caused by vibration.
Vibration Table is a consistent tool for checking road worthiness of packages. It simulates the vibrations and jolts subjected to various packages and products during handling and transportation. The damage caused by repetitive movement of the objects is replicated by the Vibration Table. The user can set frequency and time and examine the damaged caused by visual inspection on completion of the testing.
The force required for bursting or complete rupture of the board is measured through a Digital Indicator. The bursting strength defines the materials quality as compared to the others. Digital Bursting Strength Tester provides a hydraulic load under a rubber diaphragm of a specific area of the sample under test. It can be used to accurately determine the bursting strength of paper, corrugated cardboard, carton box, card board, leather, cloth or synthetic leathers. The bursting strength value is expressed in terms of kg/cm². Presto, one of the leading manufacturers of testing instruments offer wide range of paper and packaging instruments.
Presto Digital Bursting Strength Tester is utilized for measuring the bursting strength of paper/strong paper-board by submitting it to an increasing uniform hydraulic pressure. The procedure involves preparing the specimen for test and mounting the sample between two circular clamps. The specimen is then, tightened with the help of geared handle provided. The increasing pressure (hydraulic) is then applied by the handle. The diaphragm is expanded till the specimen ruptures. The reading on the digital display is the Bursting strength of the given test specimen in kg/cm2. For more details about bursting strength tester contact us.
Bursting Strength Tester is a reliable index of measurement of strength and performance of materials like paper, paper boards, corrugated boards and boxes, solid fiber boards, filter cloth, industrial fabric, leather and Rexene. With the help of a bursting strength tester, industries can ensure the best quality of products to their clients. Presto is one of the leading manufacturers of Bursting Strength tester.
Other models available of Bursting Strength Tester are: Digital Model, Pneumatic Model, Computerized Cum Digital Model with Manual Clamping and Computerized Cum Digital Model with Pneumatic Clamping.
The bursting strength of the sample is measured by applying the hydrostatic pressure required for producing rupture of the material, when pressure is applied at a controlled increasing rate through a rubber diaphragm. The value of the bursting strength will give an indication of the maximum weight that may be carried in the box. The quality of Corrugated Boxes is graded based on the value of their bursting strength. The Analogue Bursting Strength Tester is a testing instrument that offers highly reliable and accurate test results.
The Compression strength is determined by placing the box on a flat platform and pressing it downwards from the top with the help of motorized arrangement. Box Compression Tester is designed to quantify box or container performance so that the effect of various board mediums, closures and interior partitions can be plainly compared by means of Load & bend analysis. Presto BOX Compression Tester is manufactured to meet the requirements of the Paper & Packaging Industries according to International Standards. It is ergonomically designed and easy to use.
Presto Box Compression Tester is used to measure the box compression strength (BCT), shape change and stacking capability of cartons, beehive crates, paper tanks, paper cases etc. Box Compression Tester is designed to evaluate compression strength of the corrugated box and the load range selected to completely collapse as peak load or may be with a pre-determined load for a given period to evaluate stacking load. Compression Strength Test also serves as a useful index of over all quality of the material and workmanship of the box.
Presto Edge Crush tester – Digital (ECT) is rugged enough for any production testing environment. It is the ideal testing equipment for paper making, packaging, quality inspection department and more. ECT tester – Digital (ECT) is a useful equipment for determining the probable compression strength of corrugated and solid fiber board boxes by testing the paper and paper-board used in making such boxes.
Edge Crush Tester / Ring Crush Tester / Flat Crush Tester is used for accurate testing of paper, paper-board, solid fiber-board & corrugated board for ECT test and its components. The Edge Crush tester can also be used for performing compression test on all small packages.
The higher ECT value determined by the ECT tester depicts the rigidity of the CFB box. Hence, it may be used to compare the quality of the CFB board. It is also possible to determine the compression strength of the box (CFB) by using ECT tester with McKee’s formula i.e.Compression strength = k. ECT x T x Z
Where, K= Constant
ECT = edge crush test value
T=Thickness of CFB board (wall thickness)
Z= Perimeter of the box i.e. (2 L + 2 W)
The Presto Color Matching Cabinet Spectrum Asia II is highly recommended for laboratories and industries where it is important to maintain color consistency and quality. The equipment provides a standardized environment for evaluation and visual assessment of color.
Metamerism is a phenomenon wherein the test samples appears to match under one light source but seem different when viewed under another light source. In such situations it is highly beneficial to use the Presto Color matching cabinet. The equipment is widely used in the paint and plating industry, besides textile & yarn, plastic, paper and other areas.
The Presto color matching cabinet – Spectrum Asia (Rocker Switch Control) provides faster, closer and accurate color matching solution. It has, thus, been the universally preferred choice for decades.
Crease Stiffness Tester is a multi-function stiffness tester, mainly used for measuring cardboard, color box (such as cigarette case cosmetic box) of the indentation force (that is, 90° crease of the rebound force), can also measure a variety of cardboard Bending stiffness is achieved on the same instrument with two measurements: 15° flexing Degrees and 90° crease stiffness.
Standards: • BS 6965-Part-1-1988 • BS 3748, • PMI 068 • BS ISO 2493:1 • TAPPI T556 (15 ° Only) • SCAN P29
A4 Paper Testing Instruments