Patent ID: 11891737
Assignee: FITESA (CHINA) AIRLAID COMPANY LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC B  D  A | IPC A  B  D

Claim 17:
18. A method of preparing a composite sheet, comprising:
depositing a plurality of non-cellulose staple fibers onto a collection surface to form a first nonwoven fabric layer;
depositing a first airlaid layer onto a surface of the first nonwoven fabric layer, the first airlaid layer comprising a mixture of cellulose staple fibers and non-cellulose staple fibers; and
bonding the staple fibers of the first nonwoven fabric layer to the cellulose staple fibers and the non-cellulose staple fibers of the first airlaid layer to form a coherent composite sheet, and wherein the composite sheet is characterized by the following:
a fluid acquisition time ranging from about 0.5 seconds to about 2 seconds;
a fluid absorption ranging from about 15 to 30 g/g;
a fluid retention ranging from about 8 to 15 g/g;
a fluid wicking height ranging from about 10 to 50 mm; and
a resiliency ranging from about 30 to 60%.