Acquisition and distribution composite, absorbent hygiene article and method of production
AssigneeNitto Denko Corporation
InventorsJan Michael TRINKAUS, Patricia RODRIGUEZ
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Abstract
An acquisition and distribution composite has a liquid acquisition side formed of first nonwoven fibers, a hydrophilic core, and a liquid delivery side comprising second nonwoven fibers. The composite has an asymmetric structure, such that the linear density measured in dtex of the first nonwoven fibers is at least 0.7 dtex greater than that of the second nonwoven fibers. In addition, an absorbent hygiene article is formed from the acquisition and distribution composite. A method for producing the acquisition and distribution composite includes providing the three layers and hydroentangling the three-layer structure.
Claims22
An acquisition and distribution composite comprising:
- a liquid acquisition side comprising first nonwoven fibers,
- a hydrophilic core, and
- a liquid delivery side comprising second nonwoven fibers,
- wherein the acquisition and distribution composite has an asymmetric structure such that a linear density measured in dtex of the first nonwoven fibers is at least 0.7 dtex greater than the linear density measured in dtex of the second nonwoven fibers.
A method for producing an acquisition and distribution composite, comprising:
- a. providing a first carded nonwoven of first nonwoven fibers,
- b. providing a second carded nonwoven of second nonwoven fibers,
- c. providing an airlaid hydrophilic core comprising short cellulose fibers after providing one of the first and second carded nonwoven and before providing the other of the first and second carded nonwoven,
- d. hydroentangeling a three-layer structure formed by the hydrophilic core and the first and second carded nonwoven to form the acquisition and distribution composite,
- wherein a linear density measured in dtex of the first nonwoven fibers is at least 0.7 dtex greater than the linear density measured in dtex of the second nonwoven fibers.
Dependencies are inferred from the claim text.