| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-absorbing sheet having suitable water absorptive, improved in water retentivity, and capable of effectively preventing dew condensation, and a laminate for a cold insulator outer package. ! SOLUTION: A water-absorbing sheet includes a wet nonwoven fabric layer, and a pulp fiber layer laminated on one surface side of the wet nonwoven fabric layer. The wet nonwoven fabric layer comprises a pulp fiber, a hydrophobic fiber and a hydrophilic fiber, and has a density of 0.20 g/cm3-0.35 g/cm3. It is preferable that the water-absorbing sheet has in the wet nonwoven fabric layer, a pulp fiber content of 15 mass%-40 mass%, a hydrophobic fiber content of 20 mass%-70 mass%, and a hydrophilic fiber content of 15 mass%-40 mass%. The water-absorbing sheet comprises preferably a coniferous tree kraft pulp (NKP) of 50 or more mass% as a pulp fiber forming the pulp fiber layer. ! COPYRIGHT: (C)2015,JPO&INPIT |
