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US 7,255,759 B2Granted
Patterning on SMS product
AssigneeAlbany International Corp.
InventorsPascal Debyser, Jean-Louis Monnerie
Life of this patent
Estimating the term…
Abstract
A method and apparatus for the production of nonwovens. The nonwovens including a spunbonding apparatus for forming a first web of nonwoven material on a first belt, and a meltblowing apparatus for forming a second web of nonwoven material on a second belt. The second belt moves in a direction opposite the first belt and after formation, the second web is deposited on said first web to form a composite spunbond and meltblown web.
Claims7
An apparatus for the production of nonwovens comprising:
- at least one spunbonding apparatus for forming a first web of nonwoven material on a first belt;
- and
- at least one meltblowing apparatus for forming a second web of nonwoven material on a second belt,
- said second belt disposed over said first belt and depositing the second web on said first web while on said first web is on said first belt to form a composite spunbond and meltblown web;
- and
- wherein high-pressure air and heat of said meltblowing apparatus causes the second web to be imprinted with a pattern of the second belt.
3 more elements
A method of forming a patterned nonwoven comprising the steps of:
- forming a first web of nonwoven material in a spunbonding process on a first belt;
- forming a second web of nonwoven material in a meltblowing process on a second belt;
- combining said first and second webs of nonwoven material by positioning said second belt over said first belt and depositing said second web from said second belt on said first web while said first web is on said first belt to form a composite nonwoven web;
- and
- impressing a pattern onto said second web by high-pressure air and heat of said meltblowing apparatus which causes the second web to be imprinted with a pattern of the second belt.
2 more elements
Dependencies are inferred from the claim text.