A method is described to produce cellulose sheets and suspensions by fermenting biomass obtained from household and/or industrial waste. The inoculum in the fermentation includes cellulose producing bacteria and optionally yeast cells. The method has a high cellulose productivity. The resulting sheets or suspensions can be used to produce various further materials, such as disposable vessels, sachets, artificial leather. The sheet and suspensions can be used as additives in material production, such as paper making production. The method provides an alternative to make disposable items that are currently made of plastic, and textiles.

A method is described to produce cellulose sheets and suspensions by fermenting biomass obtained from household and/or industrial waste. The inoculum in the fermentation includes cellulose producing bacteria and optionally yeast cells. The method has a high cellulose productivity. The resulting sheets or suspensions can be used to produce various further materials, such as disposable vessels, sachets, artificial leather. The sheet and suspensions can be used as additives in material production, such as paper making production. The method provides an alternative to make disposable items that are currently made of plastic, and textiles.

A novel device for deacidifying, reinforcing and strengthening ancient books is provided. The device includes a double-open front door, a fan set, a dehumidifier, a vacuum pump, a light, a middle partition, a gas pipe hole, a rear panel, an ultrasonic atomizer, a gas pipe and a pulley track. The double-open front door is provided on one side face of the device. The middle partition divides the device into an upper part and a lower part, bottom faces of the upper part and the lower part are each provided with the fan set. The dehumidifier, the vacuum pump and the ultrasonic atomizer are arranged at an external surface of the rear panel opposite the double-open front door. The gas pipe locates at and runs through an upper part of the middle partition, and that section of the gas pipe is provided with the gas pipe hole The gas pipe is connected with the ultrasonic atomizer.

A novel device for deacidifying, reinforcing and strengthening ancient books is provided. The device includes a double-open front door, a fan set, a dehumidifier, a vacuum pump, a light, a middle partition, a gas pipe hole, a rear panel, an ultrasonic atomizer, a gas pipe and a pulley track. The double-open front door is provided on one side face of the device. The middle partition divides the device into an upper part and a lower part, bottom faces of the upper part and the lower part are each provided with the fan set. The dehumidifier, the vacuum pump and the ultrasonic atomizer are arranged at an external surface of the rear panel opposite the double-open front door. The gas pipe locates at and runs through an upper part of the middle partition, and that section of the gas pipe is provided with the gas pipe hole The gas pipe is connected with the ultrasonic atomizer.

There is provided a method of producing a sheet having a density of 0.6-1.3 g/cm.sup.3 measured according to ISO 534:2011, the sheet comprising chemically modified cellulose fibres, wherein the method comprises: a. providing chemically modified cellulose fibres, wherein charge density measured according to SCAN-CM 65:02 of the chemically modified cellulose fibres is 1200-2400 μeq/g; b. forming a fibre web by dewatering a slurry comprising the chemically modified cellulose fibres on a forming wire; and c. drying the fibre web to obtain the sheet, with the proviso that no carboxymethyl cellulose (CMC) is added to the chemically modified cellulose fibres during or prior to step b.

The present invention relates to a vaping article comprising an aerosol-generating zone, a zone for cooling the aerosol comprising a paper in the shape of a hollow tube, this paper comprising a fibrous substrate, and optionally a filtering zone,
characterized in that the zone for cooling the aerosol is functionalized by a plant extract and an aerosol-generating agent.

The present invention relates to a vaping article comprising an aerosol-generating zone, a zone for cooling the aerosol comprising a paper in the shape of a hollow tube, this paper comprising a fibrous substrate, and optionally a filtering zone,
characterized in that the zone for cooling the aerosol is functionalized by a plant extract and an aerosol-generating agent.

A novel method for strengthening and reinforcing ancient books is provided. Such treatment method comprises: first placing the ancient books to be treated in a closed strengthening and reinforcing device; after sealing, performing dehumidification operation and vacuumizing operation on system in sequence to maintain the system dry; and after the system is stable under negative pressure, turning on a fan set, directly delivering a strengthening and reinforcing powder to the strengthening and reinforcing device via a gas pipe, or atomizing a strengthening and reinforcing solution through a ultrasonic atomizer and then delivering the atomized solution to the strengthening and reinforcing device via the gas pipe, so that the ancient books to be treated absorb the strengthening and reinforcing agent sufficiently and evenly; and meanwhile monitoring pH value and humidity of the ancient books, thereby implementing strengthening and reinforcement of the ancient books.

A ply fibrous product comprises at least one ply selected from a nonwoven ply and a tissue paper ply, wherein the at least one ply selected from a nonwoven ply and a tissue paper ply comprises cellulosic fibers comprising an organic polycarboxylic acid and wherein the organic polycarboxylic acid has at least one carboxyl group covalently bound to the cellulosic fibers and at least one free carboxyl group. Due to the presence of covalent chemical bonds between a carboxyl group of the polycarboxylic acid and hydroxy groups of the cellulosic fibers present in all substrates, the ply fibrous products display a long-lasting acidic pH even after having been rinsed with water. In some embodiments a long-lasting acidic pH may be achieved in the nonwovens treated with an organic polycarboxylic acid even after washing with a washing detergent.

A photochemical method for chemical modification of a hydrophilic material to provide the surface of the material with hydrophobic properties. The method comprises functionalizing the surface to provide an amine group thereon, and then functionalizing the surface photo-catalytically to provide perfluoroalkanamide thereon. Alternatively, the method comprises reacting a silane moiety functional group on the surface of the material with a perfluoroalkylhalide in the presence of a photo-catalyst and light.