meltable

adjective [原级]可熔的；易溶化的

Thread sealing: binding method using meltable threads as "stitches" to secure individual and gathered sections. the thread of adhesive nature are place on the folding machine .
融线装：用可以融化的线，把个别书帖及检集后各帖连接一起的装订方法。线是有粘性的，放于折纸机上。