TechnoPlants - Technologies for nonwoven

Web turner & vertical lapper

Technoplants presents a new range of machines which allow you to use your thermobonding line in a versatile way, producing vertically lapped as well as multilayer materials.

Vertical lapped materials are well known and appreciated by professionals of the insulation and padding industry because of their thermo-acoustic properties and compressive strength. Nevertheless the vertical lapping Technology has never achieved a major success due to its high initial cost.

Technoplants proposes a new layout of machines. It avoids the purchase of an entire and dedicated line complete of a card, a vertical lapper, a thermobonding oven followed by cutting and winding/stacking equipment.

To produce vertically lapped materials it is sufficient to add to your existing thermobonding line:

  • A web turner to be mounted on top of the existing crosslapper.
  • A vertical lapper to be applied to the entrance of the existing double band oven.


Insulation, waddings, paddings, filtration


Vertical lapped nonwovens

    • Advanced acoustic characteristics: + 6 dB of Rw (Weighted Sound Reduction Index) with respect to glass or rock wool.
    • Can be combined with cross laid or airlaid materials to maximize the sound protection level. The different inclination of fibers acts like an acoustic trap.
    • High thermal performances ( λ ≤ 0,04 W/mK).
    • High compression resistance and resilience.
    • The structural integrity can be further improved by unwinding additional nonwoven layers on the top and/or bottom side of the vertical lapped layer.
    • Non-toxic and recyclable.
    • Higher hygienic properties when compared with foams.

    The web turner receives the web coming from the carding machine, turns it at 90 degrees and conveys it.

    The web entering the vertical lapper VL is fed by means of a cylinder with feeding (toothed) discs to a following cylinder with special forming discs, suitable to fold the web to become fiberwave material.

FEEDING FROM WEB TURNER

FEEDING FROM WEB TURNER

Using a single doffer carding machine it is possible to feed the web turner/vertical lapper, or alternatively to feed the pre-existing crosslapper.

FEEDING FROM CARD OR AIRLAY

FEEDING FROM CARD OR AIRLAY

With an airlay card, it is possible to install the vertical lapper between the airlay card itself and the thermobonding oven. An adjustable apron allows to feed the air-laid web to the vertical lapper, or directly into the double apron thermo-bonding oven.

MULTILAYER MATERIALS

MULTILAYER MATERIALS

Using a double doffer carding machine it is possible to produce multilayer materials, by feeding the web turner/vertical lapper and the crosslapper at the same time.


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