EP0080383A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Microfibre web product
Assignee: Kimberly Clark Ltd
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Filing: 1982-11-24
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Granted: —
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Expires: 2002-11-24
Abstract
Abstract A non-woven web made from melt blown microfibres which is formed or provided with apertures by, for example, hot needling or by passing the web between differentiaily speeded rolls. If the web is used for wiping, the apertures help to retain fluid and enhance the wiping properties for oil.
Inventors
- 👤 Mansoor Ahmad Dr. Minto
- 👤 Dennis Graham Storey
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 14:16
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/48; D04H1/485; D04H1/407; D04H1/42; D04H1/425; D04H1/4382; D04H1/43835; D04H1/43838; D04H1/54; D04H1/542; D04H1/56; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/25; Y10T428/253
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
29 words
A non-woven web fabric comprising melt blown thermally bonded thermoplastic microfibres formed or provided with apertures constituting between 1 and 40% of the area of the web or fabric.
Claim 2
Dependent Claim
29 words
A non-woven web fabric comprising melt blown thermally bonded thermoplastic microfibres formed or provided with apertures constituting between 1 and 40% of the area of the web or fabric.
Claim 3
Dependent Claim
44 words
A web or fabric as claimed in Claim 1 in which the apertures are located within the thermal bond areas so that the fibres are bonded together around the circumference of the bond area and the centre portion of the said area is apertured.
Claim 4
Dependent Claim
23 words
A web or fabric as claimed in Claim 1 or 2 in which the shape of the aperture is circular, diamond or rectangular.
Claim 5
Dependent Claim
24 words
A web or fabric as claimed in any of the preceding claims in which the apertures are arranged in rows, circles or other patterns.
Claim 6
Dependent Claim
22 words
A web or fabric as claimed in any of the preceding claims in which the apertures/perforations penetrate through the web or fabric.
Claim 7
Dependent Claim
24 words
A web or fabric as claimed in any of the preceding claims in which most fibres have a diameter of less than 10 microns.
Claim 8
Dependent Claim
28 words
A web or fabric as claimed in any of the preceding claims having absorbent particles distributed throughout the web and held by adherence to the melt blown fibres.
Claim 9
Dependent Claim
25 words
A web or fabric as claimed in any of Claims 1 to 6 having super absorbent particles distributed substantially individually and spaced throughout the web.
Claim 10
Dependent Claim
19 words
A web or fabric as claimed in any of the preceding claims including wood pulp or staple textile fibres.
Claim 11
Dependent Claim
71 words
A method of making a non-woven web as claimed in Claim 1 comprising extruding a molten polymeric material in such a way as to produce a stream of melt blown polymeric microfibres, cooling the fibres or allowing them to cool, forming or consolidating the set fibres into a web and thus forming or providing apertures in the web, the apertures constituting from 1 to 40t of the area of the web.
Claim 12
Dependent Claim
19 words
A method as claimed in Claim 10 in which the aperturing step acts to fuse fibres surrounding the apertures.
Claim 13
Dependent Claim
54 words
A method as claimed in Claim 10 or 11 in which the apertures are formed by passing the web between a gravure roll heated to at least the melting point of the material of the fibres and a smooth backing roll, the gravure roll being rotated at a higher speed than the backing roll.
Claim 14
Independent Claim
39 words
A method as claimed in Claims 10 or 11 in which the apertures are formed by a reciprocating needle or needles on a rotating roll, the needles being heated to at least the melting point of the fibre material.
Claim 15
Independent Claim
39 words
A method as claimed in any of Claims 10 to 13 in which the apertures are created with a thermal bond so that the fibres are bonded around the aperture and the central portion of the bond is apertured.
References Cited (Backward Citations)
No citation records indexed.
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