Invention Grant
- Patent Title: Dispersible nonwoven fabric and method of making same
- Patent Title (中): 可分散无纺布及其制造方法
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Application No.: US829085Application Date: 1997-03-31
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Publication No.: US5935880APublication Date: 1999-08-10
- Inventor: Kenneth Y. Wang , Leroy M. Demeny , William S. Pomplun , Pavneet S. Mumick , Ralph L. Anderson , Joseph F. Merker
- Applicant: Kenneth Y. Wang , Leroy M. Demeny , William S. Pomplun , Pavneet S. Mumick , Ralph L. Anderson , Joseph F. Merker
- Assignee: Kimberly-Clark Worldwide Inc
- Current Assignee: Kimberly-Clark Worldwide Inc
- Main IPC: D04H1/49
- IPC: D04H1/49 ; D04H1/04 ; D04H1/42 ; D04H1/425 ; D04H1/46 ; D04H1/58 ; D04H1/64 ; D21H11/12 ; D21H13/08 ; D21H13/14 ; D21H13/24 ; D21H17/37 ; D21H17/66 ; D21H25/00
Abstract:
A soft, absorbent nonwoven fibrous web, such as a wet wipe, capable of dispersing in an aqueous environment into unrecognizable pieces, made by a method comprising the steps of forming a wet-laid nonwoven web from an aqueous slurry of fibers; hydraulically needling the wet-laid nonwoven web; partially drying the hydraulically needled web; applying a binder composition to one side of the web; creping the web such that interfiber adhesion is disrupted and z-direction fiber orientation is introduced; optionally applying a binder composition to the second side of the web; recreping the web; drying and curing the web; and, converting the dried and cured web into a wet wipe, dry wipe, or other absorbent article. In the case of a wet wipe, a solution containing about 100 ppm of calcium ion is applied to the web, such as in a preserving solution. In the case of a dry wipe, the calcium ion is added after the binder is added to the web, and the final product is stored in a dry state. The combination of processes produces a web having desirable tensile strength, bulk and softness during storage and use, yet will disperse in an aqueous environment into unrecognizable pieces.
Public/Granted literature
- US5182100A Plaque-inhibiting oral and dental care preparations Public/Granted day:1993-01-26
Information query
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