An enhanced paper for printing, comprising: a polymer fiber; wherein the enhanced paper is ablation resistant so that it is not damaged by a light beam that illuminates enhanced paper with a fluence that ablates ink or toner but would damage standard printing paper that is made from cellulose fiber and is non-ablation resistant; and wherein the enhanced paper has physical properties of the standard printing paper for printing with laser printers and ink printers.

A paper suitable for use as a separator or thermal or fire insulation for use in or with electrochemical cells, and an electrochemical cell comprising the same, the paper having 90 to 99 weight percent aramid fibrous pulp comprising aramid polymer fibrils and 1 to 10 weight percent polyvinylpyrrolidone present as a coating on the surface of the fibers, the paper having a thickness of 10 to 40 micrometers and a tensile strength of at least 15 megapascals or greater.

A heat insulating material composition, including: a composite in which cellulose microfibrils enclose wet silica particles having an average particle diameter of 1 μm or more and 50 μm or less.

The invention relates to the use of a lyocell fiber (1) for the manufacture of a nonwoven fiber fleece (10, 100). To manufacture a thin nonwoven fiber fleece with sufficient mechanical properties, the use of a lyocell fiber is proposed, where the fiber (1) has a cross-sectional aspect ratio of at least 1.8.

The invention further relates to a nonwoven fiber fleece (10, 100). In order to manufacture a thin nonwoven fiber fleece (10, 100) suitable for use as a battery separator, it is proposed, that the fiber fleece comprises at least two layers (11, 12) of fibrillated lyocell fibers (13), with the fibrillated lyocell fibers (13) having solid cores (14, 110) and fibrils (15) protruding from said cores (14), the fibers and fibrils (15) being intermingled to form the fiber fleece (10), embedding the solid cores (14) therein, whereby the solid cores (14, 110) of the fibrillated lyocell fibers (13) have an average cross-sectional aspect ratio k of at least 1.5.

A tailings-reclaimed green stone paper processing method, which treats the tailings to meet the pH 7 pH requirement of the paper standard, grinds the treated tailings after drying, modifies the powdered tailings, implements a modified granulation process with the use of a modification aid, and then implements plastic granule stirring, heating mixing, filament spinning, cutting, papermaking and surface treatment processes to form an environmentally friendly stone fiber paper product, achieving the effects of tailings reuse, pollution-free, moisture-proof, anti-mite and low cost.

A tailings-reclaimed green stone paper processing method, which treats the tailings to meet the pH 7 pH requirement of the paper standard, grinds the treated tailings after drying, modifies the powdered tailings, implements a modified granulation process with the use of a modification aid, and then implements plastic granule stirring, heating mixing, filament spinning, cutting, papermaking and surface treatment processes to form an environmentally friendly stone fiber paper product, achieving the effects of tailings reuse, pollution-free, moisture-proof, anti-mite and low cost.

A method for producing a thermal insulating paper includes producing the thermal insulating paper in a classic paper production process from a raw material having materials with good thermal properties and materials with electrically insulating properties in a paper matrix. A thermal insulating paper produced using the above method may include inorganic fibers, electrical insulators, aramid fibers, or binders.

A wet-laid fibrous product is provided that comprises recycled cellulosic fibers, cellulose ester staple fibers, and residual recycled ink, where the fibrous product has less ink content compared to the ink content for a 100% cellulose comparative fiber wet-laid product, when processed under similar conditions. The wet-laid fibrous product can be formed from a deinked recycled paper pulp slurry, the pulp slurry comprising recycled cellulosic fibers, cellulose ester staple fibers, and ink. A deinking process for the slurry is also provided.

A wet-laid fibrous product is provided that comprises recycled cellulosic fibers, cellulose ester staple fibers, and residual recycled ink, where the fibrous product has less ink content compared to the ink content for a 100% cellulose comparative fiber wet-laid product, when processed under similar conditions. The wet-laid fibrous product can be formed from a deinked recycled paper pulp slurry, the pulp slurry comprising recycled cellulosic fibers, cellulose ester staple fibers, and ink. A deinking process for the slurry is also provided.

A method of making nonwoven fibrous materials suitable for use in a pollution control device or as a firestop, where the method comprises: providing a first slurry comprising water, first inorganic fibers, a first organic binder, and a first neutral pH flocculent; removing first waste water from the first slurry; optionally forming a first nonwoven fibrous material from the first slurry; providing a second slurry comprising a quantity of the first waste water, an optional quantity of relatively clean water, second inorganic fibers, a second organic binder, and a second flocculent that is the same and/or a different flocculent than that used in the first slurry; and forming a second nonwoven fibrous material from the second slurry. The addition of the first waste water in the second slurry does not adversely affect the flocculation of the second organic binder in the second slurry.