Cartons are most common packaging form, which are widely used in the transportation of products. Cartons can protect the products and makes it easy to store and transport the products. Compared with wooden cases, woven bags, plastic boxes and other packaging forms, cartons have many outstanding features including light weight and small volume, meanwhile cartons are easy to make and low in cost. Corrugated cartons are usually used for their unique structure, which can bear [...]

In modern agriculture, the selecting, transportation and sowing of seeds are all realized by automatic mechanization, which also makes a great contribution to the increase of output of grains and income of farmers. The coefficient of friction of the seeds against agricultural machinery may influence the working efficiency greatly. The coefficient of friction is one main factor that shall be considered when selecting surface materials of agricultural machinery and determining related parameters. The raw seeds [...]

i-COFTEK 3500 Friction & Peel Tester is designed to determine static and kinetic coefficient of friction tests of plastic films, sheets, foils, paper, paper board, PP woven bags, fabric style, and metal-material belts for communication cable, conveyor belts and textiles, as well as peel strength test of adhesive laminated products, medical adhesive bandages, release paper and protective films, etc. A: Prepare test specimens according to specific standards. Based on ISO8295-1986, 2 specimens measuring 200mm×80mm are [...]

Scope i-COFTEK 3500 Friction & Peel Tester is designed to determine static and kinetic coefficient of friction tests of plastic films, sheets, foils, paper, paper board, PP woven bags, fabric style, and metal-material belts for communication cable, conveyor belts and textiles, as well as peel strength test of adhesive laminated products, medical adhesive bandages, release paper and protective films, etc. Test Procedures A: Prepare test specimens according to specific standards. Based on ISO8295-1986, 2 specimens [...]

i-COFTEK 3300 Coefficient of Friction Testing Equipment is designed to determine static and dynamic coefficient of friction tests of plastic films, sheets, rubber, paper, paper board, PP woven bags, fabric style, and metal-material belts for communication cable, conveyor belts, wood, coatings, brake pads, windshield wipers, shoe materials and tyres, etc. Additionally the instrument could be used to test the smoothness of cosmetics, eye drops and other daily chemical products. Test Procedures A: Prepare test specimens [...]

Working in virtually nearly every facet of our lives, friction is the invisible force that allows, or hinders the movement of two surfaces that are in contact with one another. Coefficient of Friction is the ratio of the force that maintains contact between an object and a surface and the frictional force that resists the motion of the object. A packaging film’s “coefficient of friction” (COF) provides a relative indication of frictional characteristics. Controlling COF [...]

The ISO 8295 test method is used to investigate the static and dynamic frictional properties of film and sheet plastics when sliding on itself or other materials. This method is intended to be used for non-sticky plastic film and sheeting of up to 0.5 mm thickness. In principle, the test specimen is supported on a friction table, consisting of a horizontal test table, a sled, and a driving mechanism via a pulley to produce a [...]

Dry surfaces For low surface pressures the friction is directly proportional to the pressure between the surfaces.  As the pressure rises the friction factor rises slightly. At very high pressure the friction factor then quickly increases to seizing For low surface pressures the coefficient of friction is independent of surface area. At low velocities the friction is independent of the relative surface velocity.  At higher velocities the coefficent of friction decreases. Well lubricated surfaces The [...]

Coefficient of Friction (COF) is the measurement of resistance to friction as related to the effect of how smooth or rough a surface is to prevent material to “slip” across the surface. A low coefficient of friction for a pair of surfaces means they can move easily over each other. Ice and metal have a low coefficient of friction, so metal ice skates slide easily on ice. A high coefficient of friction for a pair [...]

Static and kinetic coefficients of friction are related to the slip properties of plastic films that are of wide interest in packaging applications. By testing the frictional properties of materials, the technical indexes could be controlled to meet requirements for production. How can we get the Static and kinetic coefficients of friction of plastic films and sheetings? ASTM D1894 descirbes a standard test method for static and kinetic coefficients of friction of plastic film and [...]