Elastic laminates and process for producing same
First Claim
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1. A method for producing a composite material comprising:
- extruding continuous filaments, the filaments comprising an elastomeric material;
stretching the continuous filaments;
applying an adhesive material to a first side of a facing material, the adhesive material being applied to the facing material from a slot extrusion die, the adhesive material forming a discontinuous coating comprising amorphous elements of the adhesive material; and
laminating the stretched continuous filaments to the first side of the facing material after the adhesive material has been applied.
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Abstract
A method is provided for producing elastic composite laminates. The laminates contain elastic filaments that are stretched and laminated to at least one facing material. The continuous filaments are laminated to the facing material using a starved slot coat process. The starved slot coat process provides various benefits and advantages including the production of laminates having improved properties.
113 Citations
30 Claims
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1. A method for producing a composite material comprising:
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extruding continuous filaments, the filaments comprising an elastomeric material;
stretching the continuous filaments;
applying an adhesive material to a first side of a facing material, the adhesive material being applied to the facing material from a slot extrusion die, the adhesive material forming a discontinuous coating comprising amorphous elements of the adhesive material; and
laminating the stretched continuous filaments to the first side of the facing material after the adhesive material has been applied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A composite elastic material comprising:
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elastic continuous filaments extending generally in the same direction, the continuous filaments comprising an elastomeric material;
a nonwoven web having a first side and a second side, the first side of the nonwoven web being laminated to the elastic continuous filaments, the elastic continuous filaments being laminated to the nonwoven web in a stretched state such that the nonwoven web gathers when the elastic continuous filaments are relaxed; and
an adhesive material bonding the elastic continuous filaments to the first side of the nonwoven web, the adhesive material comprising a discontinuous coating on the first side of the nonwoven web, the discontinuous coating comprising amorphous elements of the adhesive material, the adhesive material being present on the nonwoven web in an amount less than about 4.4 gsm. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification