发明名称 |
Bulky paper with concavo-convex pattern and process for producing thereof |
摘要 |
A process for producing a bulky paper with a concavo-convex pattern includes the steps of producing a wet mixed sheet comprising high-basis-weight regions and low-basis-weight regions from a paper-making material prepared by dispersing a fiber starting material and heat-expanding particles in water, the heat-expanding particles being evenly dispersed in the fiber in the high basis-weight and low basis-weight regions; and then heating the wet mixed sheet to cause expansion of the heat-expanding particles and form a concavo-convex pattern. This allows the free designing of concavo-convex sections on bulky papers.
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申请公布号 |
US8449718(B2) |
申请公布日期 |
2013.05.28 |
申请号 |
US20090991673 |
申请日期 |
2009.04.28 |
申请人 |
NOZAKI SATOSHI;SHIRAI TSUTOMU;UNICHARM CORPORATION |
发明人 |
NOZAKI SATOSHI;SHIRAI TSUTOMU |
分类号 |
D21H11/00 |
主分类号 |
D21H11/00 |
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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