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Super-absorbent sandwich web
专利权人:
GLATFELTER SWITZERLAND SARL
发明人:
RALF EHMKE,HENNING ROETTGER,RENO VOLKMER
申请号:
GB201212459
公开号:
GB2503924A
申请日:
2012.07.13
申请国别(地区):
GB
年份:
2014
代理人:
摘要:
A liquidabsorbing sandwich web 1650 has a filling of superabsorbent (SAM) particles mixed with individualized, preferably cellulose, fibres sandwiched between outer layers of a carrier web and a cover web. A selfcrosslinking latex binder stabilises the web. The weight percentage of the different materials is: SAM 7090%; fibres 525%; outer layers 430%; latex binder 15%. Preferably, the outer layers are cellulose fibre and the binder is vinylacetate­ethylene copolymer. The web has a centrifuge retention capacity of at least 23 g/g. The web may be used in a disposable absorbent article, placed between a backsheet on one side and an intermediate sheet and a top sheet on the other. Construction of the web requires at least one compaction step with a line pressure of less than 60 N/mm, optionally the application of vacuum suction across the web, and optionally a thermal treatment at 130180 °C.
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