发明名称 |
SETT ATT I EN INLOPPSLADA ERHALLA EN FINBLANDNING AV MELD OCH INLOPPSLADA FOR UTFORANDE AV SETTET |
摘要 |
Finely-mixed stock is produced in a headbox by delivering a multiplicity of separate stock streams at a relatively high velocity into passages defined between closely-spaced planar lamellae which extend parallel to the stock flow and oblique to a medial plane that lies axially and transversely of the fine-mixing stage that contains the lamellae. The stock flows at relatively low velocity in finely-mixed condition from the fine-mixing stage to a discharge nozzle, the axis of which lies at a substantial angle to the axis of the fine-mixing stage. The stock distribution and mixing section and the delivery nozzle of the headbox may be divided axially and transversely into two or more separate compartments for discharge of a jet composed of layers of the same or different stocks to form multi-ply webs. Different fiber orientations in different layers of such a multi-ply web are obtained by orienting the lamellae in the different chambers at substantially different oblique angles to the aforementioned axial-transverse medial plane of the fine-mixing stage. |
申请公布号 |
SE7609140(A) |
申请公布日期 |
1978.02.17 |
申请号 |
SE19760009140 |
申请日期 |
1976.08.16 |
申请人 |
* KARLSTADS MEKANISKA WERKSTAD AB |
发明人 |
D * WAHREN |
分类号 |
D21F1/02;(IPC1-7):D21F1/02 |
主分类号 |
D21F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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