Process for manufacturing embossed nonwoven fibrous products
First Claim
Patent Images
1. A process for manufacturing embossed air laid nonwoven fibrous webs comprising the steps of:
- (a) applying a cross-linkable binder to a fibrous air laid nonwoven web;
(b) partially curing the binder to provide a partially cured and moldable web that maintains physical integrity during transport to an embossing zone, and during embossing;
(c) embossing the partially cured web; and
(d) fully curing the embossed web.
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0 Petitions
Accused Products
Abstract
A process for manufacturing embossed, nonwoven fibrous products comprising the steps of subjecting a binder-treated fibrous dry laid web to a low cure treatment to obtain a moldable web with good physical integrity; embossing the low cure treated web; and fully curing the web.
34 Citations
16 Claims
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1. A process for manufacturing embossed air laid nonwoven fibrous webs comprising the steps of:
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(a) applying a cross-linkable binder to a fibrous air laid nonwoven web; (b) partially curing the binder to provide a partially cured and moldable web that maintains physical integrity during transport to an embossing zone, and during embossing; (c) embossing the partially cured web; and (d) fully curing the embossed web. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A process for manufacturing embossed air laid nonwoven fibrous webs comprising the steps of:
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(a) applying in a first application zone a cross-linkable binder to one side of a fibrous air laid nonwoven web; (b) partially curing the binder in a first partial curing zone to provide a partial cure which results in a web that maintains physical integrity during transport through a second binder application zone; (c) applying in a second binder application zone a cross-linkable binder to the other side of said air laid nonwoven web; (d) partially curing in a second partial curing zone the binder in said web after passage from the second binder application zone to provide a moldable web having a 15-90% cure; (e) embossing the partially cured web after passage of said web from the second partial curing zone; and (f) fully curing the embossed web. - View Dependent Claims (8, 9, 10, 11)
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12. A process for manufacturing embossed air laid nonwoven fibrous webs comprising the steps of:
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(a) applying in a first application zone a cross-linkable binder to one side of a fibrous air laid nonwoven web; (b) partially curing the binder in a partial curing zone to a 15-90% cure to produce a moldable web; (c) embossing the moldable web; (d) applying after the embossing step a binder to the other side of said fibrous air laid nonwoven web, and (e) fully curing the binder applied before and after the embossing step. - View Dependent Claims (13, 14, 15, 16)
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Specification