EP0207904A1
Expired / Lapsed
EP
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Covering structure for absorbent hygienic-sanitary products, and an absorbent product having such a covering
Assignee: Faricerca SpA
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Filing: 1986-07-02
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Granted: —
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Expires: 2006-07-02
Abstract
Abstract A perforated covering structure (5) is described for hygienic-sanitary products, such as sanitary towels for women, comprising an upper layer (10) constituted by a non-woven textile of fibres of hydrophobic material an intermediate layer (11) or core constituted by a film of hydrophobic material, and a lower layer (12) also constituted by a non-woven textile of fibres of hydrophobic material The covering structure (5) is applied in direct contact with that face of the absorbent core of the product which is intended to face the body of the user in use.
Inventors
- 👤 Gianfranco Palumbo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 15:34
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/5123; A61F13/51121; A61F13/5116; A61F13/513; A61F13/51305; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24628; Y10T428/24636; Y10T428/249921; Y10T428/249953; Y10T428/249962
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
78 words
Covering structure (5) for absorbent hygienic-sanitary products (1), characterised in that it is perforated (9) and comprises: - an upper layer (10) intended to face outwardly of the absorbent product (1), constituted by a non-woven textile of fibres of hydrophobic material, - an intermediate layer (11) constituted by a film of hydrophobic material, and - a lower layer (12) intended to face inwardly of the absorbent product (1), constituted by a non-woven textile of fibres of hydrophobic material.
Claim 2
Dependent Claim
78 words
Covering structure (5) for absorbent hygienic-sanitary products (1), characterised in that it is perforated (9) and comprises: - an upper layer (10) intended to face outwardly of the absorbent product (1), constituted by a non-woven textile of fibres of hydrophobic material, - an intermediate layer (11) constituted by a film of hydrophobic material, and - a lower layer (12) intended to face inwardly of the absorbent product (1), constituted by a non-woven textile of fibres of hydrophobic material.
Claim 3
Dependent Claim
21 words
Structure according to Claim 1, characterised in that the upper layer (10) is constituted by a non-woven textile of polypropylene fibres.
Claim 4
Dependent Claim
25 words
Structure according to Claim 1 or Claim 2, characterised in that the lower layer (12) is consti- tued by a non-woven textile of polypropylene fibres.
Claim 5
Dependent Claim
29 words
Structure according to any of Claims 1 to 3, characterised in that the intermediate layer (11) is constituted by a film of material selected from poly- ethyelene and polypropylene.
Claim 6
Dependent Claim
23 words
Structure according to any one of Claims 1 to 3, characterised in that the intermediate layer (11) is constituted by a polyethylene film.
Claim 7
Dependent Claim
20 words
Structure according to Claim 1, characterised in that it has an overall thickness of between substantially 200 and 700 microns.
Claim 8
Dependent Claim
20 words
Structure according to Claim 1, characterised in that it has an overall thickness of between substantially 250 and 550 microns.
Claim 9
Dependent Claim
19 words
Structure according to Claim 1, characterised in that it has an overall thickness of the order of 350 microns.
Claim 10
Dependent Claim
24 words
Structure according to Claim 1, characterised in that it has an overall weight (basis weight) of between substantially 20 and 60 grams/m 2 .
Claim 11
Dependent Claim
29 words
Structure according to Claim 1 or Claim 9, characterised in that the upper layer (10) has a weight (basis weight) of between substantially 7 and 40 grams/m 2 .
Claim 12
Dependent Claim
27 words
Structure according to Claim 1 or Claim 9, characterised in that the intermediate layer has a weight (basis weight) of between substantially 5 and 30 grams/m .
Claim 13
Dependent Claim
30 words
Structure according to Claim 1 or Claim 9, characterised in that the lower layer (12) has a weight (basis weight) of between substantially 7 and 30 grams/ m 2 .
Claim 14
Dependent Claim
22 words
Structure according to Claim 1, characterised in that it has a weight (basis weight) of the order of 40 grams/m 2 .
Claim 15
Dependent Claim
61 words
Structure according to Claim 1, characterised in that the upper layer (10) has a weight (gram weight) of the order of 20 grams/m 2 , the intermediate layer (11) has a weight (basis weight) of the order of 10 grams/ m 2 , and the lower layer (12) has a weight (basis weight) of the order of 10 grams/m 2 .
Claim 16
Dependent Claim
19 words
Structure according to Claim 1, characterised in that it has an open area of between substantially 10 and 50%.
Claim 17
Dependent Claim
18 words
Structure according to Claim 1, characterised in that it has an open area of the order of 25%.
Claim 18
Dependent Claim
21 words
Structure according to Claim 1, characterised in that it has perforations (9) with diameters of between substantially 0.4 and 1.5 mm.
Claim 19
Dependent Claim
21 words
Structure according to Claim 1, characterised in that it has perforations (9) with diameters of between substantially 0.6 and 0.9 mm.
Claim 20
Dependent Claim
40 words
Structure according to Claim 1, characterised in that it has perforations (9) of a square section with sides having a length of the order of 0.7 mm, spaced from each other by a distance of the order of 1.4 mm.
Claim 21
Dependent Claim
18 words
Structure according to Claim 1, characterised in that it has perforations (9) of circular or slightly elliptical section.
Claim 22
Dependent Claim
42 words
Structure according to Claim 1, characterised in that it has perforations (9) separated by partitions (13) defined, on the side intended to face outwardly of the absorbent product (1), by a curved face (13a) whose convexity faces outwardly of the structure (5).
Claim 23
Dependent Claim
33 words
Structure according to Claim 1 or Claim 19, characterised in that the upper layer (10) has a surface portion (10a) which is relatively compact and an inner portion (lOb) which is relatively soft.
Claim 24
Dependent Claim
40 words
Structure according to Claim 21 and Claim 22, characterised in that, in each of the partitions (13), the inner portion (10b) is completely isolated from the exterior by the surface portion (lOa) and by the film of hydrophobic material (11).
Claim 25
Dependent Claim
38 words
Structure according to Claim 1 or Claim 21, characterised in that it has perforations (9) separated by partitions (13) defined, on the side intended to face inwardly of the absorbent product (1), by a substantially flat face (13b).
Claim 26
Dependent Claim
43 words
Absorbent hygienic-sanitary product having an absorbent core (2) with an upper face (3) and a lower face (4), characterised in that it includes a covering structure according to any of Claims 1 to 24 applied in direct contact with the upper face (3).
Claim 27
Dependent Claim
41 words
Hygienic-sanitary product according to Claim 25, in which the covering structure (5) is made by perforating a continuous strip (5'), characterised in that the perforations in the intermediate layer (11) have perforation fringes (15) which extend towards the absorbent core (2).
Claim 28
Dependent Claim
37 words
Hygienic-sanitary product according to Claim 25, characterised in that the absorbent core is constituted by a mat of fibres of hydrophylic material having a weight (basis weight) of between substantially 200 and 1200 g/ m 2 .
Claim 29
Dependent Claim
18 words
Hygienic-sanitary product according to Claim 25, characterised in that the absorbent core (2) is constituted by cellulose fibres.
References Cited (Backward Citations)
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