- 专利标题： PAPER AND PROCESS FOR MANUFACTURING PAPER USING MICROFIBRILLATED CELLULOSE IN THE CELLULOSE PULP
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申请号： US17058071申请日： 2019-05-17
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公开(公告)号： US20210207325A1公开(公告)日： 2021-07-08
- 发明人: Renato Augusto PEREIRA DAMÁSIO , Marcelo COELHO DOS SANTOS MUGUET SOARES
- 申请人： Klabin S.A.
- 申请人地址： BR São Paulo - SP
- 专利权人： Klabin S.A.
- 当前专利权人： Klabin S.A.
- 当前专利权人地址： BR São Paulo - SP
- 优先权： BRBR102018010864-6 20180528
- 国际申请： PCT/BR2019/050183 WO 20190517
- 主分类号： D21H11/18
- IPC分类号： D21H11/18 ; D21H11/04 ; D21H21/18 ; D21H21/52 ; D21H27/00 ; B82Y30/00 ; B82Y40/00
摘要：
The present invention relates to a papermaking process of kraft paper, sackraft or paperboard comprising adding 1.0 to 1.5% by weight of MFC with a preferred average diameter between 1 and 568 nanometers and starch ranging from 1.0 to 10.0 kg/ton, preferably 5.0 kg/ton, generating a pulp with higher concentration of microfibers and improved strength, and consequently, a final paper with grammage ranging from 60 to 440 g/m2 and with improved strength properties for use in packaging materials.
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