Hydrolysable fibrous sheet containing gel compound
A fiber sheet, hydrolyzable technology, applied in the direction of fiber treatment, detergent composition, fiber raw material treatment, etc., can solve the problems that can not be used to wipe buttocks, damage to resin products, etc.
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Problems solved by technology
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Examples
Embodiment A
[0046] As raw material fibers, bleached kraft pulp of coniferous trees (NBKP, degree of beating = 550 cc in Kanadian Stander-do Fri-Nes test (CSF)) and rayon (fiber length 5 mm, 1.7 dtex) were mixed to form a fiber web, Then, water jet treatment was performed to obtain a hydrolyzable nonwoven fabric. The proportion of NBKP and rayon is 50% (by weight). The treatment conditions of water jet are: nozzle diameter 95μm, nozzle spacing 0.7mm, processing capacity 0.17514KW / m 2 .
[0047] Colloidal silicon dioxide (manufactured by Nissan Chemical, Snow-Tex S (trade name), containing 30-31% (mass) of silicic anhydride, particle size 7-9nm) was mixed with methylcellulose as a binder, and the It was coated on the surface of the obtained water-disintegratable nonwoven fabric, dried, and then impregnated with 250% of the chemical solution based on the mass of the sheet, and this was used as an example of the water-disintegratable fiber sheet of the present invention. In addition, the a...
Embodiment B
[0056] In the same manner as in Example A, a hydrolyzable fiber sheet was obtained. In each example, the type of electrolyte contained in the chemical solution impregnated into the fiber sheet is different. For the obtained fiber sheet, the hydrolyzability and wet strength were measured in the same manner as in Example A.
[0057] In addition, for the comparative example, a colloidal silica-free fiber sheet was produced in the same manner as in the example, and the hydrolyzability and wet strength were measured in the same manner as in the example. The results are shown in Table 2.
[0058] Comparative example 1
Embodiment C
[0060] In the same manner as in Example A, a hydrolyzable fiber sheet was obtained. In each example, the pH and particle size of the colloidal silica were varied. For the obtained fiber sheet, the hydrolyzability and wet strength were measured in the same manner as in Example A. The results are shown in Table 3.
[0061] Comparative example 1
Example C-1
Example C-2
Example C-3
Example C-4
Resin coating amount
g / m 2
4.0
4.0
4.0
4.0
4.0
colloidal dioxide
Silicon addition
g / m 2
0.0
1.5
1.5
1.5
1.5
colloidal dioxide
Silicon particle size
nm
-
10～20
10～20
10～20
7～9
colloidal dioxide
Silicon pH
-
9.5～10
9.0～10
2～4
9.0～10.5
wet strength
g / 25mm
142
214
251
...
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Abstract
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