Hot-melt polyester tape and preparation method thereof

摘要

A hot-melt polyester tape and a preparation method thereof is provided, the hot-melt polyester tape comprises a PET film layer which has a thickness of 10-20 μm, and one side of the PET film layer is coated with a hot-melt glue layer which has a thickness of 2-5 μm; the preparation method thereof comprises sizing, curing, slitting and winding formation. The hot-melt polyester tape of the invention has the PET film layer and the hot-melt glue layer, and such hot-melt polyester tape is added with a layer of hot-melt glue compared to a conventional PET film, which makes it have higher extension capacity and not easy to break, the extension strength is much higher than the national standard, and the hot-melt polyester tape has the functions of waterproofing and reinforcement.

主权项

1. A preparation method of the hot-melt polyester tape, comprising:
1) putting a PET film on a roller of a dry laminating machine, drawing the PET film to allow one side of the PET film to pass through a glue bucket containing liquid hot-melt glue layer, and smearing the PET film with the liquid hot-melt glue layer; 2) drying the PET film smeared with the liquid hot-melt glue layer obtained in the step 1) through a drying tunnel of the dry laminating machine to obtain a semi-finished product, wherein the drying tunnel has four heating zones inside, in which a temperature of the first two heating zones is 55-65° C., and heaters in the latter two heating zones are turned off; 3) bringing the semi-finished product dried in the step 2) into a discharge shaft to collect semi-finished product coils; 4) putting the semi-finished product coils obtained in the step 3) into a slitter to slit to a desired width; 5) bringing the semi-finished product slit in the step 4) into a multi-head winder to parallel wind into finished product coils; and 6) putting at least some of the finished product coils in the step 5) into a single-head winder to unwind and then rewind.