An embossing apparatus for producing a fluffy multilayer web product, the embossing apparatus comprising:
- a first embossing assembly for forming a first embossed pattern to a first web product, the first embossing assembly including:
- a first rubber embossing roller;
- and
- a first steel embossing roller adjacent to the first rubber embossing roller;
- wherein the first web product is conveyed along a first feeding path to reach and pass between the first rubber embossing roller and the first steel embossing roller to have the first web product formed with the first embossed pattern;
- a first humidifying device arranged on the first feeding path to humidify the first web product prior to the first web product reaching the first embossing assembly, the first humidifying device including:
- a first piezoelectric component;
- a first spray nozzle;
- a first water supply pipe connected to the first spray nozzle;
- and
- a first driving circuit electrically connected with the first piezoelectric component;
- wherein the first driving circuit drives the first piezoelectric component to induce ultrasonic oscillation in water passing through the first water supply pipe to generate water mist at the first spray nozzle to humidify the first web product moving along the first feeding path prior to the first web product reaching the first embossing assembly;
- a second embossing assembly arranged at a lower position relative to the first embossing assembly for forming a second embossed pattern to a second web product, the second embossing assembly including:
- a second rubber embossing roller;
- and
- a second steel embossing roller adjacent to the second rubber embossing roller and also adjacent to the first steel embossing roller;
- wherein the second web product is conveyed along a second feeding path to reach and pass between the second rubber embossing roller and the second steel embossing roller to have the second web product formed with the second embossed pattern;
- a second humidifying device arranged on the second feeding path to humidify the second web product prior to the second web product reaching the second embossing assembly, the second humidifying device including:
- a second piezoelectric component;
- a second spray nozzle;
- a second water supply pipe connected to the second spray nozzle;
- and
- a second driving circuit electrically connected with the second piezoelectric component;
- wherein the second driving circuit drives the second piezoelectric component to induce ultrasonic oscillation in water passing through the second water supply pipe to generate water mist at the second spray nozzle to humidify the second web product moving along the second feeding path;
- a glue applying device adjacent to the first steel embossing roller to apply glue on a surface of the first web product formed with the first embossed pattern and passing between the first steel embossing roller and the glue applying device;
- and
- a laminating roller adjacent to the first steel embossing roller to have the first web product formed with the first embossed pattern and whose surface has glue applied thereon and the second web product formed with the second embossed pattern laminated together in passing between the laminating roller and the first steel embossing roller and subsequently fed out along an out-feeding path.