Patent classifications
D06M13/53
Papermaking fabrics with contaminant resistant nanoparticle coating and method of in situ application
A papermaking fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter in the papermaking system. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device in the dryer section to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the dryer section or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.
Solid-state method for treating polyamide and polyester articles
Solid-state branching and/or crosslinking of aliphatic polyamide or polyester articles is achieved using a topical approach. A surface of the article is coated with a composition that includes a polyene and a free radical initiator. The article and applied coating are then heated to induce branching and/or crosslinking in the polyamide or polyester. This is performed below the crystalline melting temperature of the polyamide or polyester, or in the case of a fabric, below the melting temperature of the fibers in the fabric. Fabrics treated in this manner exhibit reduced or even no dripping in vertical flame tests.
Solid-state method for treating polyamide and polyester articles
Solid-state branching and/or crosslinking of aliphatic polyamide or polyester articles is achieved using a topical approach. A surface of the article is coated with a composition that includes a polyene and a free radical initiator. The article and applied coating are then heated to induce branching and/or crosslinking in the polyamide or polyester. This is performed below the crystalline melting temperature of the polyamide or polyester, or in the case of a fabric, below the melting temperature of the fibers in the fabric. Fabrics treated in this manner exhibit reduced or even no dripping in vertical flame tests.
BARRIER COMPOSITIONS AND METHOD OF USE
Provided is a barrier composition that includes an aqueous dispersion of one or more functional agents, and one or more nanocelluloses. Also provided is a method of improving retention, reactivity, and/or distribution of functional agents disposed on a substrate. The substrate having a substrate surface and comprising a fiber having a fiber surface in which the barrier composition is applied to or disposed on the substrate.
BARRIER COMPOSITIONS AND METHOD OF USE
Provided is a barrier composition that includes an aqueous dispersion of one or more functional agents, and one or more nanocelluloses. Also provided is a method of improving retention, reactivity, and/or distribution of functional agents disposed on a substrate. The substrate having a substrate surface and comprising a fiber having a fiber surface in which the barrier composition is applied to or disposed on the substrate.
MOISTURE-PERMEABLE WATERPROOFING LAYERED FABRIC, PRODUCTION METHOD THEREFOR, AND GARMENT OBTAINED USING SAME
A moisture-permeable waterproof laminated fabric (9) includes an outer fabric layer (2), and a nanofiber nonwoven fabric layer (3) laminated on one face of the outer fabric layer (2). At least one face of the nanofiber nonwoven fabric layer (3) is a water-repellent layer (5). The outer fabric layer (2) and the nanofiber nonwoven fabric layer (3) are partially bonded together with an adhesive (4). A method for manufacturing the fabric includes applying a water repellent agent to at least one face of the nanofiber nonwoven fabric layer (3) and curing the water repellent agent to form a water repellent layer (5), and partially bonding the nanofiber nonwoven fabric layer (3) and the outer fabric layer (2) together with an adhesive (4). As a result, the moisture-permeable waterproof laminated fabric that can continue to display the air permeability and the moisture permeability of its moisture permeable film irrespective of exposure to rain and perspiration during wearing, the method for manufacturing the fabric, and a garment including the fabric are provided.
MOISTURE-PERMEABLE WATERPROOFING LAYERED FABRIC, PRODUCTION METHOD THEREFOR, AND GARMENT OBTAINED USING SAME
A moisture-permeable waterproof laminated fabric (9) includes an outer fabric layer (2), and a nanofiber nonwoven fabric layer (3) laminated on one face of the outer fabric layer (2). At least one face of the nanofiber nonwoven fabric layer (3) is a water-repellent layer (5). The outer fabric layer (2) and the nanofiber nonwoven fabric layer (3) are partially bonded together with an adhesive (4). A method for manufacturing the fabric includes applying a water repellent agent to at least one face of the nanofiber nonwoven fabric layer (3) and curing the water repellent agent to form a water repellent layer (5), and partially bonding the nanofiber nonwoven fabric layer (3) and the outer fabric layer (2) together with an adhesive (4). As a result, the moisture-permeable waterproof laminated fabric that can continue to display the air permeability and the moisture permeability of its moisture permeable film irrespective of exposure to rain and perspiration during wearing, the method for manufacturing the fabric, and a garment including the fabric are provided.
Process for modifying the properties of citrus pulp
A process is disclosed for modifying citrus fiber. Citrus fiber is obtained having a c* close packing concentration value of less than 3.8 w %, anhydrous basis. The citrus fiber can have a viscosity of at least 1000 mPa.Math.s, wherein said citrus fiber is dispersed in standardized water at a mixing speed of from 800 rpm to 1000 rpm, to a 3 w/w % citrus fiber/standardized water solution, and wherein said viscosity is measured at a shear rate of 5 s1 at 20 C. Citrus fiber can be obtained having a CIELAB L* value of at least 90. The citrus fiber can be used in food products, feed products, beverages, personal care products, pharmaceutical products or detergent products.
Process for modifying the properties of citrus pulp
A process is disclosed for modifying citrus fiber. Citrus fiber is obtained having a c* close packing concentration value of less than 3.8 w %, anhydrous basis. The citrus fiber can have a viscosity of at least 1000 mPa.Math.s, wherein said citrus fiber is dispersed in standardized water at a mixing speed of from 800 rpm to 1000 rpm, to a 3 w/w % citrus fiber/standardized water solution, and wherein said viscosity is measured at a shear rate of 5 s1 at 20 C. Citrus fiber can be obtained having a CIELAB L* value of at least 90. The citrus fiber can be used in food products, feed products, beverages, personal care products, pharmaceutical products or detergent products.
Environmentally friendly impregnation systems for fiber surface treatment and preparation methods thereof and an impregnation treatment method
The invention discloses an environmentally friendly impregnation system for fiber surface treatment and a preparation method thereof, and an impregnation treatment method. The environmentally friendly impregnation system for fiber surface treatment of the invention includes hydroxyacrylic resin, amino resin, epoxy resin, blocked isocyanate, accelerator, rubber latex, and deionized water. Depending on the type of fiber and its application, the invention allows for the selection of one-step impregnation treatment or two-step impregnation treatment. The invention can effectively replace the use of toxic raw materials and intermediates in traditional RFL impregnation system, reducing harm to human health and the environment while achieving the adhesion level of RFL treatment.