The difference between packaging paper tubes and high-end paper tubes

1. Data paper slitting: Choose sand tube paper with uniform thickness, low moisture content and smooth surface as the main paper, and use impregnated paper as the surface paper. According to the specifications and sizes required for the production of Dongguan high-end paper tubes, place the large rolls of sand tube paper tubes and large rolls of surface paper in the slitting machine for slitting to obtain paper strips of the required size.

2. Rolling tubes: The paper strips after gluing are rolled into tubes on the active tube rolling machine.

3. Rough cutting: Put the Dongguan high-end paper tube on the resin-coated paper tube and pass it through the air dryer at a uniform speed, and then cut it into paper tube sections of a certain length.

4. Fine cutting: Roughly cut the extruded paper tube according to the required specifications and sizes, chamfer the end face of the paper tube after cutting, apply coating treatment, and package, and the production of the seamless high-end paper tube is completed.

5. Paper tube drying: Put the roughly cut paper tube segments into the drying room to dry until the water content of the paper tube is less than 10%.

6. Paper tape gluing: Put several layers of main paper tape and surface paper tape with groove treatment in order from top to bottom, overlap them in a regular way, and put them into the paper tape gluing machine in parallel. Evenly apply a layer of paper tube special glue on the upper surface of the main paper tape and the surface paper tape.

7. Extrusion molding: After the dried paper tube segments are arranged and cooled to room temperature, they are placed one by one in the molding mold preheated to 150-280℃ for internal extrusion molding, so that the resin coated on the outer surface of the paper tube can be fully cured. The molding temperature of the mold is 150-280℃.

8. Groove treatment: Put the surface paper tape into the groove machine to perform groove treatment on both sides of the paper tape.

9. Surface coating: After grinding the surface of the wound paper tube, evenly apply thermosetting resin on its surface.