Process for heat treatment of nonwovens

Details Process for heat treatment of nonwovens Process for heat treatment of nonwovens

1986-11-21

1989-03-14

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264571, 264119, 264123, 264257, 264284, 156285, 156209, 1563082, 156324, D04H 154

Patent

active

048122840

ABSTRACT:
The process serves essentially for the thermal bonding of lightweight nonwovens. For this purpose, the nonwoven is heated up by means of air penetration on a sieve drum of a flow dryer to a high percentage of the bonding temperature, and immediately thereafter is embossed with internally heated rolls in the squeeze roll nip of a calender. The apparatus provided for conducting the process consists of a sieve drum device wherein the embossing calender is arranged.

REFERENCES:
patent: 3201499 (1965-08-01), Casse 264518

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