Regarding fiber heat setting: too short heat setting time will not achieve the purpose of fiber setting, and too long heat setting time will cause the fiber to break. Therefore, determine this heat set time range.
About fiber thermal training: thermal training time is too short to achieve the purpose of fiber training, and thermal training time is too long fiber will break. Therefore, determine this thermal time range.
About the heat setting of fiber: if the heat setting time is too short, the fiber can not be set, and if the heat setting time is too long, the fiber will break. Therefore, it is determined that this thermal setting time range.<br>