Invention Grant
- Patent Title: Method for preparing a grass-type unbleached paper product
- Patent Title (中): 草型未漂白纸制品的制备方法
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Application No.: US12811655Application Date: 2008-07-25
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Publication No.: US08303772B2Publication Date: 2012-11-06
- Inventor: Hongfa Li , Mingxin Song , Jihui Yang , Yanjin Bi , Jinxiang Xu
- Applicant: Hongfa Li , Mingxin Song , Jihui Yang , Yanjin Bi , Jinxiang Xu
- Applicant Address: CN Shangdong
- Assignee: Shangdong Fuyin Paper & Environmental Protection Technology Co., Ltd.
- Current Assignee: Shangdong Fuyin Paper & Environmental Protection Technology Co., Ltd.
- Current Assignee Address: CN Shangdong
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: CN2007103002085 20071205
- International Application: PCT/CN2008/001380 WO 20080725
- International Announcement: WO2009/070955 WO 20090611
- Main IPC: D21H11/12
- IPC: D21H11/12 ; D21C3/12 ; D21C9/02 ; D21C3/14

Abstract:
Provided is an unbleached paper product made from grass type pulp, the unbleached paper product has a brightness of 35-60% ISO, the grass type pulp is unbleached. The unbleached paper product includes an unbleached toilet paper, an unbleached hand towel, an unbleached wiping paper, an unbleached duplicating paper, an unbleached meal container, an unbleached food wrapping paper and an unbleached printing paper. The paper products have a high intensity and have no detection of dioxin and absorbable organic halides in the harmful substance detection test.
Public/Granted literature
- US20110061825A1 GRASS TYPE UNBLEACHED PAPER PRODUCTS AND PRODUCTION METHOD THEREOF Public/Granted day:2011-03-17
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