Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2004-12-02
2009-08-25
Fortuna, José A (Department: 1791)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S109000, C162S117000, C162S158000, C162S183000, C428S156000, C428S488110, C008S554000, C008S619000
Reexamination Certificate
active
07578903
ABSTRACT:
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=(ΔL2+Δa2+Δb2)1/2.
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Iwasaki Minoru
Uehara Tetsuya
Androlia William L.
Daio Paper Corporation
Fortuna José A
Koda H. Henry
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