Patent EP0205242A2 successfully refreshed from Google Patents.
EP0205242A2
Expired / Lapsed
EP
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Non-woven laminate material
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1986-04-21
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Granted: —
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Expires: 2006-04-21
Abstract
Abstract @ Non-woven material useful for example for disposable wipers and the like which comprises a layer of meltblown polymeric microfibres inter-mixed with fibres of absorbent material and/or absorbent or super-absorbent particles, the absorbent fibres and/or particles being inter-connected by and held captive within the polymeric microfibres matrix of fibres by mechanical entanglement and interconnection of the microfibres/absorbent fibres, (when present), and at least one layer of meltblown polymeric microfibres, the layers being bonded together ultrasonically or by the application of heat or heat and pressure to cause the microfibres in one layer to bond to the microfibres in an adjacent layer so as to produce fuse bonds extending through the material.Such material can readily absorb fluids including oil, and can subsequently be squeezed out readily. The material also has an integral strength and a substantially lint free wiping surface.
Inventors
- 👤 Dennis G. Storey
- 👤 Peter Maddern
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 22:33
CPC Classifications
B; B32; B32B; B32B38/00; B32B38/06; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/425; D04H1/54; D04H1/559; D04H1/56; D04H13/00; D04H3/00; D04H3/08; D04H3/16; D04H5/00; D04H5/06; B32B2555/00; B32B2555/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24612; Y10T428/24802; Y10T428/24826; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/62
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
Non-woven laminate material comprising a layer of meltblown polymeric microfibres inter-mixed with fibres of absorbent material and/or absorbent or super-absorbent particles, the absorbent fibres and/or particles being inter-connected by and held captive within the polymeric microfibres matrix of fibres by mechanical entanglement and interconnection of the microfibres/absorbent fibres, (when present), and at least one layer of meltblown polymeric microfibres, the layers being bonded together ultrasonically or by the application of heat or heat and pressure to cause the microfibres in one layer to bond to the microfibres in an adjacent layer so as to produce fuse bonds extending through the material.
Claim 2
Dependent Claim
101 words
Non-woven laminate material comprising a layer of meltblown polymeric microfibres inter-mixed with fibres of absorbent material and/or absorbent or super-absorbent particles, the absorbent fibres and/or particles being inter-connected by and held captive within the polymeric microfibres matrix of fibres by mechanical entanglement and interconnection of the microfibres/absorbent fibres, (when present), and at least one layer of meltblown polymeric microfibres, the layers being bonded together ultrasonically or by the application of heat or heat and pressure to cause the microfibres in one layer to bond to the microfibres in an adjacent layer so as to produce fuse bonds extending through the material.
Claim 3
Dependent Claim
27 words
Non-woven material as claimed in Claim 1 wherein the said layer of meltblown microfibres and absorbent fibres/particles is sandwiched between two outer layers of meltblown polymeric microfibres.
Claim 4
Dependent Claim
29 words
Non-woven material as claimed in Claim 1 in which two layers of meltblown polymeric microfibres intermixed with absorbent fibres or particles, sandwich an inner layer of meltblown polymeric microfibres.
Claim 5
Dependent Claim
46 words
Non-woven material as claimed in Claim 1 having a layer of meltblown polymeric microfibres having staple length textile fibres intermittently mixed therewith to form a soft transfer layer, and a second layer of polymeric microfibres mixed with absorbent pulp to produce a high absorbent capacity layer.
Claim 6
Dependent Claim
22 words
Non-woven material as claimed in Claim 4 having a backing polymeric film on the other, outer side of the said second layer.
Claim 7
Dependent Claim
24 words
Non-woven material as claimed in any preceding Claim wherein the fibrous material of each outer layer is made of polyester, nylon, polyethelene or polypropylene.
Claim 8
Dependent Claim
35 words
Non-woven material as claimed in Claim 6 in which the fibres of the centre layer have the same melting point as the fibres of the outer layers to enable the layers to be bonded together.
Claim 9
Dependent Claim
18 words
Non-woven material as claimed in any preceding Claim having a weight of between 50 gsm and 150 gsm.
Claim 10
Dependent Claim
27 words
Non-woven material as claimed in any preceding Claim incorporating a layer having a wood pulp or synthetic wood pulp, content of between 50 and 80% by weight.
Claim 11
Dependent Claim
44 words
Non-woven material as claimed in any preceding Claim in which the bond area is between 10 and 20%. ll. Non-woven material as claimed in any preceding claim in which the diameter of the fibres in the outer layers is between 1½ and lO microns.
References Cited (Backward Citations)
No citation records indexed.
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