Bonding of nonwoven materials
AssigneeNorafin Industries GmbH
InventorsMarc Jolly, Michael Groschopp, André Lang, Roland Fischer
Life of this patent
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Abstract
This invention relates to a technology for bonding pieces of nonwoven material to each other by fluid entanglement or needling technology.
Claims15
A method of bonding nonwoven materials wherein a bonding area of non-woven material pieces is realized, which shows almost the same properties in comparison a non-bonding area,
- by one of thinning, in particular chemical unraveling, and combing-out nonwoven material ends at the bonding area,
- by fixing said nonwoven material ends in an overlapping manner, and by subsequent fluid entanglement or needle-punching.
A method of bonding a first nonwoven material to a second nonwoven material at a bonding area defined by an end portion of said first nonwoven material and an end portion of said second nonwoven material, bound material at said bonding area having almost the same properties in comparison to said first or second nonwoven material, comprising:
- thinning nonwoven material in said end portions of said first nonwoven material and said second nonwoven material to form fiber ends at said end portions;
- overlaying the fiber ends of said first nonwoven material and said second nonwoven material in said bonding area, and
- interlacing said overlaying fiber ends by at least one of fluid entanglement or needle-punching.
A method of bonding a first nonwoven material to a second nonwoven material at a bonding area defined by an end portion of said first nonwoven material and an end portion of said second nonwoven material, bound material at said bonding area having almost the same properties in comparison to said first or second nonwoven material, comprising:
- combing-out nonwoven material in said end portions of said first nonwoven material and said second nonwoven material to form fiber ends at said end portions;
- overlaying the fiber ends of said first nonwoven material and said second nonwoven material in said bonding area, and
- interlacing said overlaying fiber ends by at least one of fluid entanglement or needle-punching.
Dependencies are inferred from the claim text.