Hydroentangled fabric having structured surfaces
US6314627A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/498
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A composite non-woven fabric has two outer non-woven layers with structured surfaces that are efficient at wiping solid or semi-solid matter, with a center non-woven layer that is substantially impermeable to the passage of solid or semi-solid matter. The fabric of the invention thus provides efficient wiping ability for solid and semi-solid matter in combination with a sanitary quality that prevents passage of such matter through the fabric. The fabric of the invention may find particular utility as a wipe. A method of making a composite non-woven fabric includes the general steps of forming a first and second hydroentangled non-woven webs with structured surfaces, and laminating the first and second webs to a central non-woven web that is substantially impermeable to passage of solid and semi-solid matter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.