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US 2024/0200245 A1Published application
Super-soft composite wiping non-woven fabric and manufacturing method therefor
AssigneeXiamen Yanjan New Material Co., Ltd.
InventorsShihuang LI, Chaosheng WU, Yonggong CHEN
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Abstract
A super-soft composite wiping non-woven fabric having a layered structure which contains two outer layers being melt-blown polyester fiber webs composed of melt-blown polyester fibers with a fiber length of 10 mm-50 mm and a fiber length-diameter ratio of 1100-8000; a middle fiber layer is mainly composed of water absorbent fibers; fiber interlacing and interpenetrating areas are arranged between one of the two outer layers and the middle fiber layer, as well as between another one of the two outer layers and the middle fiber layer.
Claims9
1:
- A composite wiping non-woven fabric with a layered structure;
- wherein two outer layers of the composite wiping non-woven fabric are both formed by melt-blown polyester fiber webs composed of melt-blown polyester fibers with a fiber length of 10 mm to 50 mm and a fiber length-to-diameter ratio of 1100 to 8000;
- a middle fiber layer in between the two outer layers of the composite wiping non-woven fabric is formed by water absorbent fibers;
- fiber interlacing and intertwining areas exist between one of the two outer layers and the middle fiber layer, as well as between another one of the two outer layers and the middle fiber layer respectively;
- wherein a weight of the middle fiber layer is more than 65% of a total weight of the composite wiping non-woven fabric;
- the melt-blown polyester fibers are formed from resin having a molecular structure that contains ester bonds, with a content of ester bonds in a single molecule being 70 to 100 and an intrinsic viscosity being 0.50 to 0.68 dL/g.
3 more elements
2:
- The composite wiping non-woven fabric of claim 1,
- wherein the melt-blown polyester fibers are single-component fibers, bi-component melt-blown fibers of which each strand of fiber has an outer surface formed at least partially by a low-melting-point resin, or a mixture thereof.
(canceled)
4:
- The composite wiping non-woven fabric of claim 1,
- wherein the resin containing the ester bonds is polyethylene terephthalate or polybutylene terephthalate.
5:
- The composite wiping non-woven fabric of claim 1,
- wherein the water absorbent fibers in the middle fiber layer are viscose fibers, single-component or bi-component staples, natural fibers, or a mixture thereof.
6:
- The composite wiping non-woven fabric of claim 5, wherein the natural fibers are wood pulp fibers, cotton fibers, or a mixture thereof.
7:
- The composite wiping non-woven fabric of claim 5,
- wherein a weight percentage of the viscose fibers in the water absorbent fibers is greater than or equal to 15%.
(canceled)
(canceled)
Dependencies are inferred from the claim text.