Textiles: fiber preparation – Assembling – Formed web
Reexamination Certificate
2005-04-26
2005-04-26
Welch, Gary L. (Department: 3765)
Textiles: fiber preparation
Assembling
Formed web
C019S305000
Reexamination Certificate
active
06883209
ABSTRACT:
A plant for removing fines from fiber fluff. The plant includes a forming wire, a forming head which is placed above the forming wire and arranged for air-laying fiber fluff into a layer upon the forming wire, at least one channel for carrying, in a flow of air, fibers from a supply of fibers into the forming head, a suction box placed beneath the forming wire, at least one vacuum fan connected to the suction box for generating an air flow from the forming head, through the fluff, the forming wire, and the suction box to the at least one vacuum fan. The mesh count of the forming wire mainly allow only the fines contained in the fluff to pass through the forming wire. The troublesome and costly filtering of the water used in a hydroentangling process is advantageously eliminated when using fluff, which is freed from fines by means of the plant according to the invention. Air-laid webs produced of the fine-free fibers also have a high quality.
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patent: 2 031 970 (1980-04-01), None
M & J Fibretech A/S
Welch Gary L.
Winston & Strawn LLP
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