| 发明名称 |
LOW COARSENESS SOUTHERN SOFTWOOD PULPS |
| 摘要 |
Pulp sheets produced from Southern pine fibers are disclosed. Embodiments in which the fibers have a fiber length to coarseness ratio equal to or greater than 0.11, with fiber length (LWAFL) in mm and coarseness in mg/100 m, are found to impart stiffness properties to tissue grade handsheets made therefrom comparable to those achieved using of standard NBSK. Embodiments in which the fibers have a low coarseness (of from about 16 to about 20 mg/100 m, at a fiber length (LWAFL) of from about 1.6 to about 3.0 mm) are found to impart wicking properties to absorbent structures made therefrom that are improved relative to those achieved using standard high coarseness SBSK. |
| 申请公布号 |
US2016244916(A1) |
申请公布日期 |
2016.08.25 |
| 申请号 |
US201514627651 |
申请日期 |
2015.02.20 |
| 申请人 |
WEYERHAEUSER NR COMPANY |
发明人 |
Neogi Amar N.;West Hugh;Heineman, JR. Richard W. |
| 分类号 |
D21H27/00;D21H11/20;D21H11/04 |
主分类号 |
D21H27/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A pulp sheet comprising Southern pine fibers that have a fiber length to coarseness ratio from about 0.125 to 0.142, wherein fiber length (LWAFL) is in mm, and coarseness is in mg/100 m, wherein the length to coarseness ratio of the fibers is at a coarseness of from about 19 to about 20 mg/100 m and a fiber length of from about 2.5 to about 2.7 mm, and wherein the content of said Southern pine fibers is at least 20%. |
| 地址 |
Federal Way WA US |
