| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | |
| | | Zw/ck I Roell | | |
| | | |
| | | | | | | | | | Standard | | | | | box crush test | ISO 12048 | | | | | EN 22872 | | | | stacking test | TAPPI T 804 | | | | | EN 22874 | | | | Material | corrugated board | | | | Zwick-Item-No | | | | compression | | | | | plates | | | | | 400 * 400 mm | 070091.55.10* | | | | 400 * 600 mm | 070091.55.14* | | | | special versions | on request | | | | | 066050.02.00 ff | | | | | TC-LC005KN.F02ff | | | | test programs | | | | | box crush test- | 069000.00.ff | | | | stacking test | 069015.09.ff | | | | for specimens | | | | | length | boxes according to | | | | wight | the machine's test | | | | hight | space | | | | to machines | from Z005/TN2Sff | | | | | | | | | |
| | | • After a specified waiting time, the water is poured out. Excess water is removed from the specimen with blotting paper and roller. • The specimen is weighed while wet and the amount of water is calculated that 1m2 of specimen material would absorb. A complete Cobb-Test-Kit can be obtained from Zwick or its partner. | | Standard ISO 11897 Material paper-foil-compounds Zwick-Item-No grips 8133.00.00* 8253.00.00* TC-LC2.5KN.F02 test program 069003.01.ff for specimens dimensions acc. to the product to machines from zwicki/ BasicLine | | |
| | | |
| | | |
| | | Standard ISO 535 EN 20535 TAPPI T 441 Material paper Zwick-Item-No Cobb test kit On request for specimens diameter_112,8 mm | | |
| | | The advantages: • Tensile and tear propagation tests can be performed with the same equipment. • Peaks and median values are calculated in one operation • Easy to use menus simplifies the work | | |
| | | |
| | | |
| | | |
| | | The advantages: • Standard and customer specific machines for optimal testing • Available solutions for box widths up to 2000 mm | | |
| | | The advantages: • Operator friendly instrument with quick clamping • also available for corrugated board | | |
| | | âfSJïJAJIJâJjyéJ | | |
| | | |
| | | |
| | | |
| | | Tear Propagation Test This characteristic is important for finding and avoiding weak spots in packaging with folded edges or bonded seams (Figures 45 and 46). It can be performed on a low cost industrial testing machine such as BasicLine machines for tight budgets. In addition, it gives valuable information about the quality of materials and about the consistency of the production process. | | |
| | | Water absorbtion to Cobb Water absorbtion of raw paper is determined with the Cobb Test. The principle is: • The dry specimen is weighed • The specimen is placed under a cylinder with an inner diameter of 100 cm2. Specimen and cylinder lie on a rubber and a steel plate • Approx. 100 ml water is poured into the cylinder | | |
| | | |
| | | |
| | | Fig. 46: Packing edge with bonded seam in a tear test | | |
| | | |
| | | 24 | | |
| | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |