The production principle of kraft paper machines

The production principle of kraft paper machines varies depending on the type of machine. Here are some common production principles of kraft paper machines:
Wet kraft paper machine:
Manual: Paper output, cutting, and brushing rely entirely on manual operation without any auxiliary equipment.
Semi automatic: The steps of paper output, paper cutting, and water brushing are completed through the linkage of a joystick and gears.
Fully automatic: relying on the circuit board to provide machine signals, the motor is driven to link gears to complete various steps.
Kraft paper bag machine: Process multiple layers of kraft paper into paper tubes and stack them in a trapezoidal shape for subsequent printing, achieving a one-stop production line mode.

Kraft paper machine:
Pulping: Cut wood into slices, preheat it with steam, and grind it into pulp under high pressure.
Washing: Separate the steamed pulp from the black liquor.
Bleach: Bleach pulp to achieve the desired brightness and whitene
Screening: Add additives, dilute pulp, and filter out fine fibers through small gaps.
Forming: Water is discharged through a net, and fibers are formed into paper sheets.
Squeezing: Further dehydration is achieved through the squeezing of blankets.
Drying: Enter the dryer and evaporate the water through a steel dryer.
Polishing: endows the paper with high quality, and improves its adhesive and smoothness through pressure.
Curling: Curl into large rolls, then cut into small rolls for packaging and entering the warehouse.
Kraft paper bubble press: By applying pressure, the air and moisture inside the kraft paper are squeezed out to make it smoother and denser.
Kraft paper cushion machine: The kraft paper is punched through by the rollers inside the machine, forming a crease to achieve cushioning and protection.