Absorber, sanitary articles using the absorber, and production method thereof

An absorber comprising an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, an intermediate water-absorbing paper layer portion provided between the upper water-absorbing paper layer portion, and the lower water-absorbing paper layer portion, an upper water-absorbing mixture layer portion provided between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a lower water-absorbing mixture layer portion provided between the lower water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion;

• wherein the upper water-absorbing mixture layer portion is formed by a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm, and the lower water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and
• the upper water-absorbing paper layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, and the lower water-absorbing mixture layer portion are overlapped in layers and formed integrally.

An absorber comprising an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, an intermediate water-absorbing paper layer portion provided between the upper water-absorbing paper layer portion and the lower water-absorbing paper layer portion, an upper water-absorbing mixture layer portion provided between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a lower water-absorbing mixture layer portion provided between the lower water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion;

• wherein the upper water-absorbing mixture layer portion is formed by a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm, and the lower water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and
• the upper water-absorbing paper layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, and the lower water-absorbing mixture layer portion are overlapped in layers and formed integrally.

An absorber comprising an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, an intermediate water-absorbing paper layer portion provided between the upper water-absorbing paper layer portion and the lower water-absorbing paper layer portion, an upper water-absorbing mixture layer portion provided between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a lower water-absorbing mixture layer portion provided between the lower water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion;

• wherein the upper water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm in an amount less than the crushed pulp fiber material, and the lower water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to have a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and
• the upper water-absorbing paper layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, and the lower water-absorbing mixture layer portion are overlapped in layers and formed integrally.

An absorber comprising an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, an intermediate water-absorbing paper layer portion provided between the upper water-absorbing paper layer portion and the lower water-absorbing paper layer portion, an upper water-absorbing mixture layer portion provided between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a lower water-absorbing mixture layer portion provided between the lower water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion;

• wherein the upper water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm and crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm in an amount less than the crushed pulp fiber material;
• and the lower water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and
• the upper water-absorbing paper layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, and the lower water-absorbing mixture layer portion are overlapped in layers and formed integrally.

An absorber comprising an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, an intermediate water-absorbing paper layer portion provided between the upper water-absorbing paper layer portion and the lower water-absorbing paper layer portion, an upper water-absorbing mixture layer portion provided between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a lower water-absorbing mixture layer portion provided between the lower water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion;

• wherein the upper water-absorbing mixture layer portion is formed from a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm in an amount less than the crushed pulp fiber material, and a crushed plastic-containing material in an amount less than the crushed pulp fiber material;
• and the lower water-absorbing mixture layer portion is formed from a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and
• the upper water-absorbing paper layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, and the lower water-absorbing mixture layer portion are overlapped in layers and formed integrally.

An absorber comprising an upper water-absorbing paper layer portion forming an upper surface, a lower water-absorbing paper layer portion forming a lower surface, an intermediate water-absorbing paper layer portion provided between the upper water-absorbing paper layer portion and the lower water-absorbing paper layer portion, an upper water-absorbing mixture layer portion provided between the upper water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion, and a lower water-absorbing mixture layer portion provided between the lower water-absorbing paper layer portion and the intermediate water-absorbing paper layer portion;

• wherein the upper water-absorbing mixture layer portion is formed by a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm in an amount less than the crushed pulp fiber material, and a crushed plastic-containing material in an amount less than the crushed pulp fiber material;
• and the lower water-absorbing mixture layer portion is formed from a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and
• the upper water-absorbing paper layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, and the lower water-absorbing mixture layer portion are overlapped in layers and formed integrally.

A method of producing an absorber which comprises forming a water-absorbing mixture layer portion by disposing a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a water-absorbing resin in an amount less than the crushed pulp fiber material on a lower water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper while aspirating from below the lower water-absorbing paper layer portion;

• forming an upper water-absorbing paper layer portion by disposing at least one sheet of water-absorbing paper on the water-absorbing mixture layer portion;
• forming a stratified material by overlapping the upper water-absorbing paper layer portion, the water-absorbing mixture layer portion, and the lower water-absorbing paper layer portion;
• and
• press-shaping integrally the stratified material.

A method of producing an absorber which comprises forming a water-absorbing mixture layer portion by disposing a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and a water-absorbing resin in an amount less than the crushed pulp fiber material on a lower water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper while aspirating from below the lower water-absorbing paper layer portion;

• forming an upper water-absorbing paper layer portion by disposing at least one sheet of water-absorbing paper on the water-absorbing mixture layer portion;
• forming a stratified material overlapped with the upper water-absorbing paper layer portion, the water-absorbing mixture layer portion, and the lower water-absorbing paper layer portion;
• and
• press-shaping integrally the stratified material.

A method of producing an absorber which comprises forming a lower water-absorbing mixture layer portion by disposing an absorbing material powder mixture on a lower water-absorbing paper layer portion formed of at least one sheet of water-absorbing paper while aspirating from below the lower water-absorbing paper layer portion;

• forming an intermediate water-absorbing paper layer portion by covering over the lower water-absorbing mixture layer portion with one or more sheet of thin paper,
• forming an upper water-absorbing mixture layer portion by disposing a water-absorbing material powder mixture on the intermediate water-absorbing paper layer portion while aspirating from below the lower water-absorbing paper layer portion,
• forming a stratified material by disposing an upper water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper on the upper water-absorbing mixture layer portion, and
• press-shaping integrally the stratified material formed by the upper water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing mixture layer portion, and the lower water-absorbing paper layer portion;
• wherein the upper water-absorbing mixture layer portion is formed from a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm, and the lower water-absorbing mixture layer portion formed from a mixture containing a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a water-absorbing resin in an amount less than the crushed pulp fiber material.

A method of producing an absorber which comprises forming a lower water-absorbing mixture layer portion by disposing an absorbing material powder mixture on a lower water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper while aspirating from below the lower water-absorbing paper layer portion,

• forming an intermediate water-absorbing paper layer portion by covering over the lower water-absorbing mixture layer portion with one or more sheet of thin paper,
• forming an upper water-absorbing mixture layer portion by disposing a water-absorbing material powder mixture on the intermediate water-absorbing paper layer portion while aspirating from below the lower water-absorbing paper layer portion,
• forming a stratified material by disposing an upper water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper on the upper water-absorbing mixture layer portion, and
• press-shaping integrally the stratified material formed by the upper water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing mixture layer portion, and the lower water-absorbing paper layer portion;
• wherein the upper water-absorbing mixture layer portion is formed from a crushed pulp fiber material beaten to a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm and crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and the lower water-absorbing mixture layer portion is formed from a mixture containing a crushed pulp fiber material beaten to have a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and a water-absorbing resin in an amount less than the crushed pulp fiber material.

A method of producing an absorber which comprises forming a lower water-absorbing mixture layer portion by laying an absorbing material powder mixture on a lower water-absorbing paper layer portion while aspirating from below the lower water-absorbing paper layer portion,

• forming an intermediate water-absorbing paper layer portion by covering over the lower water-absorbing mixture layer portion with one or more sheet of thin paper,
• forming an upper water-absorbing mixture layer portion by disposing a water-absorbing material powder mixture on the intermediate water-absorbing paper layer portion while aspirating from below the lower water-absorbing paper layer portion,
• forming a stratified material by disposing an upper water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper on the upper water-absorbing mixture layer portion, and
• press-shaping integrally the stratified material formed by the upper water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing mixture layer portion, and the lower water-absorbing paper layer portion;
• wherein the upper water-absorbing mixture layer portion is formed from a crushed pulp fiber material beaten to have a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and the lower water-absorbing mixture layer portion is formed from a mixture containing a crushed pulp fiber material beaten to have a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a water-absorbing resin in an amount less than the crushed pulp fiber material.

A method of producing an absorber which comprises forming a lower water-absorbing mixture layer portion by disposing an absorbing material powder mixture on a lower water-absorbing paper layer portion formed by at least one sheet of water-absorbing paper while aspirating from below the lower water-absorbing paper layer portion,

• forming an intermediate water-absorbing paper layer portion by covering over the lower water-absorbing mixture layer portion with one or more sheet of thin paper,
• forming an upper water-absorbing mixture layer portion by disposing a water-absorbing material powder mixture on the intermediate water-absorbing paper layer portion while aspirating from below the lower water-absorbing paper layer portion,
• forming a stratified material by disposing an upper water-absorbing paper layer portion formed of at least one sheet of water-absorbing paper on the upper water-absorbing mixture layer portion, and
• press-shaping integrally the stratified material formed by the upper water-absorbing paper layer portion, the upper water-absorbing mixture layer portion, the intermediate water-absorbing paper layer portion, the lower water-absorbing mixture layer portion, and the lower water-absorbing paper layer portion;
• wherein the upper water-absorbing mixture layer portion is formed from a crushed pulp fiber material beaten to have a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, and a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and the lower water-absorbing mixture layer portion is formed from a mixture containing a crushed pulp fiber material beaten to have a fiber length of 0.1 to 7 mm in content percentage of not more than 5 weight % of fine particle with particle size of less than 0.1 mm, crushed tea leaves having a particle size of 0.05 to 4.6 mm in content percentage of not more than 1 weight % of fine particle with particle size of less than 0.05 mm, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and a water-absorbing resin.