Absorber comprising pulp, tea dregs and water absorbent resin; sanitary articles using the absorber and production method thereof

An absorber comprising an upper water-absorbing paper layer portion comprised of an upper surface, a lower water-absorbing paper layer portion comprised of 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 comprised of 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and the particles of crushed tea dregs are distributed so that the content increases from upper to lower within the water-absorbing mixture layer portion, and an upper water-absorbing paper layer portion, a water absorbing mixture layer portion and a lower water-absorbing paper layer portion are press-shaped integrally by overlapping in layers, to contain crushed tea dregs and to have large infiltration velocity and large drying velocity;
• 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 comprised of an upper surface, a lower water-absorbing paper layer portion comprised of 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 comprised of 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 comprised of 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, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, crushed tea dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and the particles of crushed tea dregs are distributed so that the content increases from upper to lower within the water-absorbing mixture layer portion, and an upper water-absorbing paper layer portion, a water absorbing mixture layer portion and a lower water-absorbing paper layer portion are press-shaped integrally by overlapping in layers, to contain crushed tea dregs and to have large infiltration velocity and large drying velocity;
• 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 comprised of an upper surface, a lower water-absorbing paper layer portion comprised of 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, in an amount less than the crushed pulp fiber material, and
• the lower water-absorbing mixture layer portion is comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and the particles of crushed tea dregs are distributed so that the content increases from upper to lower within the water-absorbing mixture layer portion, and an upper water-absorbing paper layer portion, a water absorbing mixture layer portion and a lower water-absorbing paper layer portion are press-shaped integrally by overlapping in layers, to contain crushed tea dregs and to have large infiltration velocity and large drying velocity;
• 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 comprised of an upper surface, a lower water-absorbing paper layer portion comprised of 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, in an amount less than the crushed pulp fiber material;
• and
• the lower water-absorbing mixture layer portion is comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and the particles of crushed tea dregs are distributed so that the content increases from upper to lower within the water-absorbing mixture layer portion, and an upper water-absorbing paper layer portion, a water absorbing mixture layer portion and a lower water-absorbing paper layer portion are press-shaped integrally by overlapping in layers, to contain crushed tea dregs and to have large infiltration velocity and large drying velocity 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 comprised of an upper surface, a lower water-absorbing paper layer portion comprised of 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, and a water-absorbing resin in an amount less than the crushed pulp fiber material;
• and the particles of crushed tea dregs are distributed so that the content increases from upper to lower within the water-absorbing mixture layer portion, and an upper water-absorbing paper layer portion, a water absorbing mixture layer portion and a lower water-absorbing paper layer portion are press-shaped integrally by overlapping in layers, to contain crushed tea dregs and to have large infiltration velocity and large drying velocity;
• 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 comprised of an upper surface, a lower water-absorbing paper layer portion comprised of 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, 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 comprised of 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, a crushed plastic-containing material in an amount less than the crushed pulp fiber material, and the particles of crushed tea dregs are distributed so that the content increases from upper to lower within the water-absorbing mixture layer portion, and an upper water-absorbing paper layer portion, a water absorbing mixture layer portion and lower water-absorbing paper layer portion are pressed-shaped integrally by overlapping in layers, to contain crushed tea dregs and to have large infiltration velocity and large drying velocity 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 dregs having a particle size of 0.7 to 3.8 mm in mixing content percentage of 14 to 43% by weight, based on the crushed pulp fiber material as dry weight, 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;

• mixing the particle of the crushed tea dregs with the crushed pulp fibber material and the water-absorbing resin, and moving the particles of the crushed tea dregs between the particles of the pulp fiber material downward and forming the water absorbing mixture layer portion in which the contents of the particles of tea dregs is distributed to increase from upper to lower,
• 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 to contain crushed tea dregs and to have large infiltration velocity and large drying velocity.