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PROCÉDÉ DE PRODUCTION DE FEUILLE ÉTIRABLE
专利权人:
Daio Paper Corporation
发明人:
申请号:
EP16743584.1
公开号:
EP3251645A1
申请日:
2016.01.29
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
To acquire a stretchable sheet having air permeability due to the presence of through-holes, with no hole formed through outer layers.There are provided: interposing a resilient film (30) that stretches and contracts, in a stretched state between a first sheet layer (21) having no elasticity and a second sheet layer (22) having no elasticity; and joining the first sheet layer (21) and the second sheet layer (22) together with a number of joints directly or through the resilient film by melting the resilient film (30) with ultrasonic fusion energy applied by a thermal fusion device from the outside of the first sheet layer (21) and the outside of the second sheet layer (22) to a number of joint regions with intervals, during the interposing. The resilient film (30) is supplied around a counter roll (63) so as to be supplied around the anvil roll (60), and the anvil roll (60) is accelerated to be faster than the counter roll (63) in peripheral speed to stretch the resilient film (30).
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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