Pet pad and manufacturing method of pet pad
Provided are: a sheet for pets which contains carbon and has a superior appearance, and a method of manufacturing the sheet for pets. A sheet for pets is provided with a liquid-permeable front surface sheet, a liquid-impermeable back surface sheet, an absorbent layer that contains carbon and organic acid and is positioned between the front surface sheet and the back surface sheet, and a front surface-side liquid-permeable sheet that is black and is positioned on the front surface sheet-side of the absorbent layer. The front surface-side liquid-permeable sheet is preferably formed from pulp fibers that have been dyed black.
1. A pet pad comprising:
a liquid permeable top sheet;
a liquid impermeable back sheet;
an absorbent layer containing charcoal and organic acid, the absorbent layer being disposed between the top sheet and the back sheet; and
a black top side liquid permeable sheet that is disposed on a top sheet side of the absorbent layer.
2. The pet pad according to claim 1 , wherein
the top side liquid permeable sheet is a sheet obtained by making paper with pulp fiber containing black pulp fiber which is stained black.
3. The pet pad according to claim 1 , wherein
a particle diameter of the charcoal is 0.01 mm to 1.0 mm.
4. The pet pad according to claim 1 , wherein
basis weight of the top side liquid permeable sheet is 8 g/m 2 to 50 g/m 2 and air permeability of the top side liquid permeable sheet is 0.01 kPa·s/m to 0.25 kPa·s/m.
5. The pet pad according to claim 1 , wherein
the absorbent layer has an absorbent core including hydrophilic fiber; and
the charcoal and the organic acid are disposed on a top sheet side face of the absorbent core.
6. The pet pad according to claim 5 , wherein
the absorbent layer further includes a highly absorbent resin disposed on the top sheet side face of the absorbent core.
7. The pet pad according to claim 1 , wherein
the organic acid is citric acid.
8. A manufacturing method of a pet pad having a liquid permeable top sheet, a liquid impermeable back sheet, an absorbent layer containing charcoal and organic acid, the absorbent layer being disposed between the top sheet and the back sheet, and a black top side liquid permeable sheet that is disposed on a top sheet side of the absorbent layer, the method comprising:
a core forming step of forming an absorbent core including hydrophilic fiber;
a scattering step of scattering a mixture of charcoal, organic acid and a highly absorbent resin onto one face of the absorbent core; and
a top side liquid permeable sheet disposing step of disposing the top side liquid permeable sheet on a face of the absorbent layer on which the charcoal, the organic acid and the highly absorbent resin have been applied.
9. The manufacturing method of a pet pad according to claim 8 , further comprising, between the scattering step and the top side liquid permeable sheet disposing step, a spraying step of spraying water onto the face of the absorbent layer on which the charcoal, the organic acid and the highly absorbent resin have been applied.