| Trimming Improves with COOL-BIND™ Adhesive |
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| National's COOL-BIND, the new low temperature EVA hot melt, continues to show many advantages over conventional hot melts for perfect binding. More specifically, many binderies report that COOL-BIND greatly improves the trimming process. Under varying conditions, the trimming is now clean and sharp, and the overall book quality is improved. |
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| In particular, bookbinders report that the lower temperature hot melt eliminates the problem of chip-out when trimming laminated cover stocks, especially with high speed trimmers. In chip-out, pieces of the laminate break loose because the glue hasn't set up hard enough. Chip-out occurs with standard 350°F hot melts because hot adhesive remains molten in the backbone. Bond formation is also superficial at this point. COOL-BIND, however, starting at a 100°F lower temperature, reaches its solidification point faster. |
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| Eliminating the chip-out problem improves book quality, while productivity improves as well. COOL-BIND adhesive's faster cooling can increase production speed, as bookbinders reduce the time needed for the adhesive to cool and set. A standard EVA needs cooling time between one and three minutes compared to the 30 to 40 seconds for COOL-BIND. |
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| We receive other reports that COOL-BIND reduces wrinkling of the backbone. Wrinkling decreases because COOL-BIND's lower temperature provides faster cooling while driving out less moisture. |
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| These reports come in addition to the many other benefits of COOL-BIND such as safety and worker comfort, less wear on equipment, and no char formation. We will keep you posted on the latest developments with COOL-BIND. |
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