Fibers with filler
The present invention is directed to articles of manufacture, including fibers and films, and methods of making thereof. In accordance with the present invention, the article includes a binder impregnated with or encapsulating a filler. The binder is a polyvinyl alcohol (PVOH), cellulose nanofibrils, or a combination of the PVOH and cellulose nanofibrils. The filler is deinking waste solids comprising ash and cellulose fines.
1. A paper web comprising:
a cellulosic substrate having a surface; and
a fiber or a film impregnated within the cellulosic substrate, having a particle size with an average diameter of about 1 micrometer to about 80 micrometers, and comprising:
a binder and a filler, the binder being a polyvinyl alcohol (PVOH) with a degree of hydrolysis of greater than 95%, the filler being deinking waste solids comprising ash and cellulose fines, the PVOH being present in an amount in a range between about 20 weight % (wt. %) to about 99 wt. % based on the total weight of the article, and the cellulose fines comprising an average diameter of about 1 to about 200 micrometers.
2. The paper web of claim 1 , wherein the binder is impregnated with the filler.
3. The paper web of claim 1 , wherein the binder is encapsulating the filler.
4. The paper web of claim 1 , wherein the filler comprises particles having an average size of less than about 20 micrometers in diameter.
5. The paper web of claim 1 , wherein the fiber or the film further comprises a processing aid.
6. The paper web of claim 5 , wherein the processing aid is present in a range between about 0.5 wt. % to about 10 wt. % based on the total weight of the fiber.
7. The paper web of claim 1 , wherein a degree of polymerization of the PVOH is in a range between about 1,000 to about 1,600.