Water absorbing pad, water-absorbing product and diaper using water-absorbing pad, and method for washing the same
AssigneeShinkai Co., Ltd.
InventorYoichi Shinkai
Life of this patent
Estimating the term…
Abstract
A paper diaper using an water-absorbing polymer is superior in absorbency/water-retaining performance to a cloth diaper, but it has the drawback that it generates garbage and is expensive. An water-absorbing pad is formed by allowing an water-absorbing polymer which is dispersed, dissolved or melted or the crosslinks of which are broken in an electrolytic aqueous solution to be retained by a water soluble material. An water-absorbing product is produced by interposing the water-absorbing pad thus formed between sheets of cloth or other materials. The water-absorbing pad secured within the product is dissolved when washed with an electrolytic aqueous solution, and the product itself is reusable.
Claims29
A water-absorbing pad comprising:
- a water-absorbing polymer having a characteristic such that the polymer is dispersed or dissolved in an electrolytic aqueous solution;
- and
- a water soluble material in a flat sheet form for wrapping the polymer to retain the same therein so that when the water-absorbing pad is held in a sufficient amount of the electrolytic aqueous solution, the water-absorbing pad is quickly dispersed or dissolved in the aqueous solution.
A method for washing a water-absorbing product composed of a water-absorbing pad formed of a water-absorbing polymer which is dispersed or dissolved in an electrolytic aqueous solution, and sheets between which the pad is interposed, said method comprising the step of washing the water-absorbing product with the water-absorbing pad interposed between the sheets by the electrolytic aqueous solution so that the sheets with the water-absorbing pad is quickly dispersed or dissolved in the aqueous solution.
A method for washing a diaper composed of a water-absorbing pad formed of a water-absorbing polymer which is dispersed or dissolved in an electrolytic aqueous solution, and sheets between which the pad is interposed, said method comprising the step of washing the diaper with the water-absorbing pad interposed between the diaper sheets by the electrolytic aqueous solution so that the sheets with the water-absorbing pad is quickly dispersed or dissolved in the aqueous solution.
Dependencies are inferred from the claim text.