Abstract 1. A process for the production of a continuous random web of continuous endless filaments which comprises feeding a plurality of individual continuous endless filaments downwardly by free fall onto the curved rotating surface of a first sieve drum means subjected to a suction draft sufficient to maintain said filaments thereon, the feeding speed of the filaments being higher than the conveying speed of the rotating sieve drum means, thereby depositing said filaments in a plaited, random arrangement across the curved surface of said sieve drum means to form a random continuous random web on said curved surface, passing the continuous random web from the sieve drum means directly onto a subjacent planar conveying surface which supports said web in its random arrangement and which introduces the random web into a heated treatment chamber and onto a curved rotating surface of a second sieve drum means subjected to a suction draft sufficient to maintain said web in its random arrangement thereon, said conveying surface extending in a horizontal plane located between said curved surface of the first sieve drum means being interrupted immediately prior to passing the continuous random web from the first sieve drum means whereby said random web is released in its random arrangement onto said planar conveying surface, applying a bonding agent to said endless filaments before the random web enters said heated chamber, drawing a heated gaseous treatment medium through the random web on the curved surface of said second sieve drum means to consolidate and bond the web in its random arrangement and thereafter removing said consolidated and bonded web of continuous endless filaments from the treatment chamber.
A process for the production of a continuous random web of continuous endless filaments which comprises feeding a plurality of individual continuous endless filaments downwardly by free fall onto the curved rotating surface of a first sieve drum means subjected to a suction draft sufficient to maintain said filaments thereon, the feeding speed of the filaments being higher than the conveying speed of the rotating sieve drum means, thereby depositing said filaments in a plaited, random arrangement across the curved surface of said sieve drum means to form a random continuous random web on said curved surface, passing the continuous random web from the sieve drum means directly onto a subjacent planar conveying surface which supports said web in its random arrangement and which introduces the random web into a heated treatment chamber and onto a curved rotating surface of a second sieve drum means subjected to a suction draft sufficient to maintain said web in its random arrangement thereon, said conveying surface extending in a horizontal plane located between said curved surface of the first sieve drum means being interrupted immediately prior to passing the continuous random web from the first sieve drum means whereby said random web is released in its random arrangement onto said planar conveying surface, applying a bonding agent to said endless filaments before the random web enters said heated chamber, drawing a heated gaseous treatment medium through the random web on the curved surface of said second sieve drum means to consolidate and bond the web in its random arrangement and thereafter removing said consolidated and bonded web of continuous endless filaments from the treatment chamber.
Claim 2
Dependent Claim
272 words
A process for the production of a continuous random web of continuous endless filaments which comprises feeding a plurality of individual continuous endless filaments downwardly by free fall onto the curved rotating surface of a first sieve drum means subjected to a suction draft sufficient to maintain said filaments thereon, the feeding speed of the filaments being higher than the conveying speed of the rotating sieve drum means, thereby depositing said filaments in a plaited, random arrangement across the curved surface of said sieve drum means to form a random continuous random web on said curved surface, passing the continuous random web from the sieve drum means directly onto a subjacent planar conveying surface which supports said web in its random arrangement and which introduces the random web into a heated treatment chamber and onto a curved rotating surface of a second sieve drum means subjected to a suction draft sufficient to maintain said web in its random arrangement thereon, said conveying surface extending in a horizontal plane located between said curved surface of the first sieve drum means being interrupted immediately prior to passing the continuous random web from the first sieve drum means whereby said random web is released in its random arrangement onto said planar conveying surface, applying a bonding agent to said endless filaments before the random web enters said heated chamber, drawing a heated gaseous treatment medium through the random web on the curved surface of said second sieve drum means to consolidate and bond the web in its random arrangement and thereafter removing said consolidated and bonded web of continuous endless filaments from the treatment chamber.