发明名称 |
Colored sanitary tissue paper and production method thereof |
摘要 |
The invention is directed to obtain a colored sanitary tissue paper giving a bright feeling in spite of modest color. The invention provides a colored sanitary tissue paper with a color difference between before and after dyeing of 15 or more in D value of Hunter's color difference formula defined in JIS Z 8730; D=(DeltaL2+Deltaa2+Deltab2)1/2.
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申请公布号 |
US7578903(B2) |
申请公布日期 |
2009.08.25 |
申请号 |
US20040581421 |
申请日期 |
2004.12.02 |
申请人 |
DAIO PAPER CORPORATION |
发明人 |
UEHARA TETSUYA;IWASAKI MINORU |
分类号 |
D21H21/28;B31F1/07;D21H23/04;D21H27/00 |
主分类号 |
D21H21/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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