Water-metachromatic cloth sheet, toy set using the same, and...

Details Water-metachromatic cloth sheet, toy set using the same, and... Water-metachromatic cloth sheet, toy set using the same, and...

B - Operations, Transporting

41

M

B41M 5/00 (2006.01) A63H 33/00 (2006.01) B41J 3/407 (2006.01) B43K 11/00 (2006.01) B43K 27/08 (2006.01) B44D 2/00 (2006.01) B44F 1/10 (2006.01) D06M 11/79 (2006.01) D06P 1/00 (2006.01) D06Q 1/10 (2006.01) A63H 33/22 (2006.01)

Patent

CA 2322120

A water-metachromatic cloth sheet which comprises a support and provided on the surface thereof a porous layer formed of a binder resin to which fine-particle silicic acid stands fixed dispersedly, and is capable of rendering different transparency between a liquid-absorbed state and a liquid-unabsorbed state. The support is a cloth having a weight per unit area of 30 g/m2 to 1, 000 g/m2, the fine-particle silicic acid is held in the porous layer in an amount of from 1 g/m2 to 30 g/m2, and the fine-particle silicic acid is incorporated in an amount ranging from 0.5 part by weight to 2 parts by weight based on 1 part by weight of the binder resin. Also disclosed is a writing instrument usable for water-metachromatic members including the above water-metachromatic cloth sheet.

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