发明授权
- 专利标题： Apparatus for sealing a polymer coated paper or board
- 专利标题（中）： 用于密封聚合物涂布纸或纸板的装置
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申请号： US10585784申请日： 2005-01-12
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公开(公告)号： US08186406B2公开(公告)日： 2012-05-29
- 发明人: Päivi Määttä , Pëtri Laakso , Jari Hovikorpi , Raimo Penttilä , Nina Miikki , Risto Vesanto
- 申请人： Päivi Määttä , Pëtri Laakso , Jari Hovikorpi , Raimo Penttilä , Nina Miikki , Risto Vesanto
- 申请人地址： FI Helsinki
- 专利权人： Stora Enso Oyj
- 当前专利权人： Stora Enso Oyj
- 当前专利权人地址： FI Helsinki
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： FI20040033 20040113
- 国际申请： PCT/FI2005/000014 WO 20050112
- 国际公布： WO2005/068173 WO 20050728
- 主分类号： B32B37/00
- IPC分类号： B32B37/00
摘要：
The invention relates to a method and an apparatus for jointing members made of plastic-coated paper or board. In accordance with the invention, the sealable members are retained in position with clamps and sealing is performed with a laser sealing means moving along the sealing line, a means for opening the seal point pressing the members apart to continue keeping the seal point open, a laser beam being directed to the open seal point for melting the coating plastic and a means for closing the seal pressing finally the members against each other, the plastic jointing the members when solidified. The method is applicable to lateral sealing of bag or container packages formed of blanks, among other things.