The thermoplastic plastics and its composites can cover hot viscosity determination of "national standards recently formally through expert review, an important step to full implementation.
Detailed rules for the standard thermoplastic material and composite material thermal cover, at the end of the heat sealing just hasn't been cooled thermal viscous fluid (namely hot sticky strength) testing methods, to fill the domestic blank. There is no relevant national standards and industry standardsReview meeting, from the national plastic products standardization technical committee, national packaging product quality supervision and inspection center of medical equipment products quality inspection center of shandong, experts at the national inspection, academic institutions, such as the standard version, test report and other material had serious discussions and put forward modify opinions, as equivalent to the draft standard has with the international standard and technical level.
Thermal viscous force, heat sealing part is material not cooling after hot sealing of stripping force.In the actual production, the packing material thermal viscous force appropriate or not directly affect the production line of filling efficiency and the rate of broken bags.At present, already has a mature international hot viscosity can detect - ASTMF1921 test standards, but the domestic is still in the blank stage, the standard demand is very urgent.To this, by the haidian district of Beijing product quality supervision and inspection, jinan lincom mechanical and electrical technology co., LTD., a number of institutions such as enterprises and technical personnel to form the standard drafting team, after a lot of industry research and foreign standards, at the same time complementary with lincom hot glue pull machine test, lasted three years, eventually formed the draft standard edition.Next, this draft will be further perfect, after the formal implementation will rational selection and use of packaging materials to provide a strong quantitative support.
