CA2249327A1 - Mechanical and internal softening for nonwoven web - Google Patents
Mechanical and internal softening for nonwoven webInfo
- Publication number
- CA2249327A1 CA2249327A1 CA 2249327 CA2249327A CA2249327A1 CA 2249327 A1 CA2249327 A1 CA 2249327A1 CA 2249327 CA2249327 CA 2249327 CA 2249327 A CA2249327 A CA 2249327A CA 2249327 A1 CA2249327 A1 CA 2249327A1
- Authority
- CA
- Canada
- Prior art keywords
- web
- mechanical
- nonwoven web
- cup crush
- crush value
- 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
Links
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
Landscapes
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Abstract
There is provided a web which has been spun from a mixture of thermoplastic polymer and a softening additive in an amount up to about 3 weight percent, and which has been mechanically treated to increase softness. The web has a final cup crush value which is less than 50 percent of the starting cup crush value and the drop in cup crush value is greater than the sum of the treatments individually. The web may be a single layer or may be a laminate of spunbond and other materials such as meltblown and coform fabrics.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/639,637 | 1996-04-29 | ||
| US08/639,637 US5770531A (en) | 1996-04-29 | 1996-04-29 | Mechanical and internal softening for nonwoven web |
| PCT/US1997/006701 WO1997040778A2 (en) | 1996-04-29 | 1997-04-23 | Mechanical and internal softening for nonwoven web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2249327A1 true CA2249327A1 (en) | 1997-11-06 |
| CA2249327C CA2249327C (en) | 2005-11-15 |
Family
ID=29422962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2249327 Expired - Fee Related CA2249327C (en) | 1996-04-29 | 1997-04-23 | Mechanical and internal softening for nonwoven web |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2249327C (en) |
-
1997
- 1997-04-23 CA CA 2249327 patent/CA2249327C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2249327C (en) | 2005-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |