Carding apparatus and carding method
AssigneeAutefa Solutions Germany GmbH
InventorAndreas Meier
Life of this patent
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Abstract
A carding apparatus (2) and a carding method for producing a card web (12) are based on the carding apparatus (2) including a web forming device (5) for creating a preliminary web (3), followed by a web layering apparatus (7) which is followed by a card (6), and a controllable or adjustable profiling device (8). The profiling device (8) precedes or is associated with the web layering apparatus (7). The profiling device (8) is used for profiling the preliminary web (3) in order to preventively compensate for peripheral bulges in the card web (12) discharged by the card (6).
Claims21
A carding apparatus for producing a fibrous carded web, the carding apparatus comprising:
- a web-forming device forming a fibrous preliminary web;
- a downstream web-layering apparatus;
- and
- a card following the web-layering apparatus;
- and
- a controllable or adjustable profiling device arranged upstream of the web-layering apparatus or associated with the web-layering apparatus and profiling the preliminary web, wherein the profiling device is arranged in the web-forming device and/or the profiling device is arranged in an area between the web-forming device and the web layering apparatus wherein the profiling device is configured as a controllable or adjustable drafting device for the preliminary web and the profiling device is arranged in an inlet area of the web-layering apparatus.
A nonwoven production plant comprising:
- a carding apparatus for producing a fibrous carded web, and
- a downstream nonwoven-layering apparatus for layering a single-layer or multi-layer nonwoven, wherein the carding apparatus comprising:
- a web-forming device forming a fibrous preliminary web;
- a preliminary web-layering apparatus downstream of the web-forming device for layering the preliminary web;
- a card following the preliminary web-layering apparatus;
- and
- a controllable or adjustable profiling device arranged upstream of the preliminary web-layering apparatus or associated with the preliminary web-layering apparatus and profiling the preliminary web, wherein the profiling device is arranged in the web-forming device and/or the profiling device is arranged in an area between the web-forming device and the web-layering apparatus wherein the profiling device is configured as a controllable or adjustable drafting device for the preliminary web and the profiling device is arranged in an inlet area of the web-layering apparatus.
A method for producing a fibrous carded web, with a card, the method comprising the steps of:
- producing a fibrous preliminary web by a web-forming device of a carding apparatus;
- feeding the produced fibrous preliminary web to a downstream web-layering apparatus and to a card arranged downstream of the web-layering apparatus;
- profiling the fibrous preliminary web in a controllable or adjustable profiling device arranged upstream of or associated with the web-layering apparatus, wherein the profiling device is arranged in the web-forming device and/or the profiling device is arranged in an area between the web-forming device and the web-layering apparatus wherein the profiling device is configured as a controllable or adjustable drafting device for the preliminary web and the profiling device is arranged in an inlet area of the web-layering apparatus.
A carding apparatus for producing a fibrous carded web, the carding apparatus comprising:
- a web-forming device forming a fibrous preliminary web;
- a downstream web-layering apparatus;
- and
- a card following the web-layering apparatus;
- and
- a controllable or adjustable profiling device arranged upstream of the web-layering apparatus or associated with the web-layering apparatus and profiling the preliminary web, wherein the carding apparatus further comprises a measuring device arranged downstream of the card which measures an area weight or a web thickness, in the cross direction and/or in the longitudinal direction of the carded web wherein the measuring device is connected to the profiling device for adjusting same.
Dependencies are inferred from the claim text.