In the face of today's market demand for a wide range of today, as a professional engaged in special complex multilayer labels, folding label, label manufacturers in terms of; not only focus on technology research and development of special tags; and focus on the continual improvement of label glue viscous high standard requirements; the following is several kinds of testing methods:
First, the initial viscosity test method
1 initial adhesion - the object and pressure sensitive adhesive tape with a small pressure between the transient contact, the adhesive tape on the object of the role of adhesion is called the initial adhesion.
2 Principle - a ball rolled over the adhesive tape on the tilt plate. According to the provisions of the maximum length of the ball size viscous surface can stick, evaluate its initial viscosity size.
3 test equipment and parameters
The initial adhesion tester must be used to meet the parameters.
A. adjustable inclination: 0 ~ 60
B. mesa width: 120mm
C. test area width: 80mm
D. standard steel ball: 1/32 inches to 1 inches
E. outline dimension: 320 (L) mm * 140 (B) mm * 180 (H) mm
F. weight: 6kg
Two, the viscosity test method
1 the ability to resist the displacement of the adhesive tape by the weight of a specified weight in the length direction of the pressure sensitive adhesive tape along the adhesive tape. Moving distance of a certain distance by using the test piece of time or within a certain time.
2 test equipment and parameters
Using the viscosity tester can choose 3 stations, 6 stations, 10 stations, 30 stations of the instrument and equipment must meet the parameters of the index.
A. standard pressure roller: 2000g + 50 g
B. weight: 1000 + 10g (including loading plate weight)
C. test board (L): 60 mm x 40 mm (B) * 1.5 (D) mm
D. timing range: 0 ~ 100h
E. (L) size: 600 mm x 240 mm (B) * 400 (H) mm
F. net weight: 20kg
G. power supply: 220V 50Hz AC
Test method for three, 180 degree peel strength
1 peel strength: the load that can be under the unit width when the adhesive is separated from the adhesive sample under the specified stripping condition. KN/m representation.
2 test equipment and parameters
The electronic stripping tester must be used to meet the parameters.
A. load range: 0500N (30N 50N 100N 200N 500N optional)
B. precision: 1 force value of the value of the error is not less than 1%.
C. resolution: 0.01N
D. loading speed: 0 - 500mm/min) can be arbitrarily adjusted
E. sample width: less than 30mm
F. stretching stroke: 500mm
G. standard pressure roller: 2000g + 50 g
H. test board length of 125mm + 1mm, width of 50mm + 1mm, thickness of 1.5 ~ 2 labels: adhesive tape adhesion detection, adhesive testing, initial adhesion tester, holding viscosity tester, peeling test machine, etc..