CA2588743A1 - Fibrous structure having increased surface area and process for making same - Google Patents
Fibrous structure having increased surface area and process for making same Download PDFInfo
- Publication number
- CA2588743A1 CA2588743A1 CA002588743A CA2588743A CA2588743A1 CA 2588743 A1 CA2588743 A1 CA 2588743A1 CA 002588743 A CA002588743 A CA 002588743A CA 2588743 A CA2588743 A CA 2588743A CA 2588743 A1 CA2588743 A1 CA 2588743A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- fibrous
- pattern
- mask
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Abstract
A fibrous structure having at least a first region defining a first plane and having a first elevation, and a second region outwardly extending from the first plane to define a second elevation, wherein the second region comprises a plurality of fibrous pillows. At least some of the fibrous pillows comprise fibrous domes and fibrous cantilever portions laterally extending therefrom at the second elevation. The cantilever portions are elevated from the first plane to form pocket therebetween. In a cross-section perpendicular to the first plane the fibrous pillow has a cross-sectional base measured at the first elevation and a cross-sectional perimeter, wherein a ratio of the cross--sectional perimeter to the cross-sectional base is greater than 4/1. A
laminated fibrous structure is also disclosed, comprising at least one fibrous sheet having a plurality of fibrous cantilever portions. A process for making the fibrous structure comprises the steps of providing a plurality of fibers disposed on a deflection member comprising a patterned framework having a backside and a web-side opposite thereto and a deflection conduits portions, including a plurality of suspended portions elevated from a plane formed by the backside to form void spaces therebetween; and deflecting a portion of the fibers into the deflection conduits such as to cause some of the deflected fibers to be disposed within said void spaces, thereby forming the fibrous domes and the cantilever portions laterally extending therefrom.
laminated fibrous structure is also disclosed, comprising at least one fibrous sheet having a plurality of fibrous cantilever portions. A process for making the fibrous structure comprises the steps of providing a plurality of fibers disposed on a deflection member comprising a patterned framework having a backside and a web-side opposite thereto and a deflection conduits portions, including a plurality of suspended portions elevated from a plane formed by the backside to form void spaces therebetween; and deflecting a portion of the fibers into the deflection conduits such as to cause some of the deflected fibers to be disposed within said void spaces, thereby forming the fibrous domes and the cantilever portions laterally extending therefrom.
Claims (6)
1. A process for making a deflection member (10), comprising providing a first layer (30) having a top surface (31) and a bottom surface (32) opposite to the top surface (31) and defining an X-Y plane, the first layer (30) further having a fluid- permeable first conduit portion (35) extending between the top and bottom surfaces (31,32), the process characterized in that the process comprises steps of:
providing a second layer (40) having a top surface (41), a bottom surface (42) opposite to the top surface, and a second conduit portion (45) extending between the top and bottom surfaces (41,42), and joining the first layer (30) and the second layer (40) together in a face-to-face relationship such that the top surface (31) of the first layer (30) faces the bottom surface (42) of the second layer, wherein portions (49) of the second layer (40) corresponding to the first conduits portion (35) of the first layer (30) are spaced from the X-Y plane to form void spaces between the X-Y plane and said portions (49) of the second layer (40).
providing a second layer (40) having a top surface (41), a bottom surface (42) opposite to the top surface, and a second conduit portion (45) extending between the top and bottom surfaces (41,42), and joining the first layer (30) and the second layer (40) together in a face-to-face relationship such that the top surface (31) of the first layer (30) faces the bottom surface (42) of the second layer, wherein portions (49) of the second layer (40) corresponding to the first conduits portion (35) of the first layer (30) are spaced from the X-Y plane to form void spaces between the X-Y plane and said portions (49) of the second layer (40).
2. The process according to Claim 2, characterized in that at least one of the first layer (30) and the second layer (40) is made by selectively curing a photosensitive resin, and the at least one of the top surface (31) of the first layer (30) and the bottom surface (42) of the second layer (40) is maintained in a partially uncured condition to enable the first and second layers to join together upon contact therebetween.
3. A mask (110) for use in a process for curing a curable material, the mask comprising a structure having a top side (110a) and a bottom side (110b) opposite to the top side (110a), the mask (110) further having a non-random and repeating pattern of transparent regions (112) and opaque regions (114), the mask characterized in that the opaque regions (114) comprise at least first opaque regions (114a) and second opaque regions (114b), wherein the first opaque regions (114a) have a first opacity, and the second opaque regions (114b) have a second opacity different from the first opacity.
4. The mask (110) according to Claim 3, characterized in that the first opaque regions (114a) form a discontinuous pattern of a plurality of discrete areas, a semi- continuous pattern, a pattern of discrete areas, or any combination thereof.
5. The mask (110) according to Claims 3 and 4, characterized in that the opaque regions (114) comprise a gradient opacity that gradually changes in at least one direction.
6. The mask (110) according to Claims 3, 4 and 5, characterized in that the mask comprises a pattern of a three-dimensional topography (115) comprising protrusions extending from at least one of the top side (110a) and the bottom side (110b) of the mask (110) and comprising a substantially continuous pattern, a substantially semi-continuous pattern, a pattern of discrete protuberances, or any combination thereof, wherein the pattern of protrusions (115) preferably correlates with the pattern of transparent regions (112) and opaque regions (114) to form a combined non-random and repeating pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2696880A CA2696880A1 (en) | 2000-10-24 | 2001-10-23 | Flexible patterned mask with regions of differing opacity |
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/695,117 US6660129B1 (en) | 2000-10-24 | 2000-10-24 | Fibrous structure having increased surface area |
| US09/694,946 US6576091B1 (en) | 2000-10-24 | 2000-10-24 | Multi-layer deflection member and process for making same |
| US09/695,117 | 2000-10-24 | ||
| US09/694,946 | 2000-10-24 | ||
| US09/694,929 US6420100B1 (en) | 2000-10-24 | 2000-10-24 | Process for making deflection member using three-dimensional mask |
| US09/694,915 | 2000-10-24 | ||
| US09/695,155 US6743571B1 (en) | 2000-10-24 | 2000-10-24 | Mask for differential curing and process for making same |
| US09/695,155 | 2000-10-24 | ||
| US09/694,929 | 2000-10-24 | ||
| US09/694,915 US6576090B1 (en) | 2000-10-24 | 2000-10-24 | Deflection member having suspended portions and process for making same |
| CA002422772A CA2422772C (en) | 2000-10-24 | 2001-10-23 | Fibrous structure having increased surface area and process for making same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002422772A Division CA2422772C (en) | 2000-10-24 | 2001-10-23 | Fibrous structure having increased surface area and process for making same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2696880A Division CA2696880A1 (en) | 2000-10-24 | 2001-10-23 | Flexible patterned mask with regions of differing opacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2588743A1 true CA2588743A1 (en) | 2002-08-08 |
| CA2588743C CA2588743C (en) | 2010-06-08 |
Family
ID=38606811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2588743A Expired - Fee Related CA2588743C (en) | 2000-10-24 | 2001-10-23 | Fibrous structure having increased surface area and process for making same |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2588743C (en) |
-
2001
- 2001-10-23 CA CA2588743A patent/CA2588743C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2588743C (en) | 2010-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20151023 |