发明申请
WO9829590A3 Coformed dispersible nonwoven fabric bonded with ahybrid system and method of making same
审中-公开
基本信息:
- 专利标题: Coformed dispersible nonwoven fabric bonded with ahybrid system and method of making same
- 专利标题(中):用混合系统粘合的共形分散无纺布及其制造方法
- 申请号:PCT/US9723724 申请日:1997-12-30
- 公开(公告)号:WO9829590A3 公开(公告)日:1998-08-13
- 发明人: JACKSON DAVID MARTIN , ONO AUDRIE TOMOKO , MUMICK PAVNEET SINGH , POMPLUN WILLIAM SEAL , WANG KENNETH Y
- 申请人: KIMBERLY CLARK CO
- 专利权人: KIMBERLY CLARK CO
- 当前专利权人: KIMBERLY CLARK CO
- 优先权: US77441796 1996-12-31
- 主分类号: D04H1/555
- IPC分类号: D04H1/555 ; D04H1/407 ; D04H1/42 ; D04H1/54 ; D04H1/56 ; D04H5/06
摘要:
A water-dispersible coformed fibrous nonwoven fabric structure comprising a primary reinforcing polymer material, preferably capable of being meltspun; a secondary reinforcing polymer material having an average fiber length less than or equal to about 15 mm and preferably having a softening point at least about 30 °C lower than the softening point of the primary reinforcing polymer; and, an absorbent material, such as pulp or a superabsorbent. The fabric structure maintains desired tensile strength and softness while being water-dispersible and flushable. The fabric produced can be incorporated into an article and can be flushed down a commode. The fabric is flushable when placed in water, with agitation, if necessary, and will disperse into unrecognizable pieces without clogging conventional plumbing or piping. A method of producing the fabric structure comprises mixing the secondary reinforcing material and absorbent material and injecting this coform blend into a stream of meltspun primary reinforcing fibers. After a web structure has been established, the structure is exposed to thermal or ultrasonic energy sufficient to soften and bond the secondary reinforcing material fibers, but not to soften the primary reinforcing material fibers. An embossed pattern can be printed on the structure.