The invention generally relates to fabric dyeing, such as fabric dyeing using indigo or sulphur dyes. A process is provided which provides a dyed yarn having reduced dye penetration and a white core. The process involves modification of existing sulfur dye ranges to more efficiently and in an environmentally improved method produce dyed fabrics. The modification involves one or more of i) using of a barrier compound to subsequent dye applications; ii) performing a scouring stage without a caustic agent; iii) bypassing scouring and/or scour rising; iv) using sodium bicarbonate to control the pH of dye tanks; v) reducing the dye concentration and increasing the number of dye vats; and vi) adding a sizing stage to the dye range. The invention also is directed to yarns dyed on dye ranges through use of the process, and fabrics formed from the dyed yarns.

A textile fabric having improved properties, variously including surface stability, abrasion resistance, resistance to edge fraying, moisture control, and resistance to fluid penetration is created by introducing a polymeric solution or a plurality of low-melting particles suspended in a liquid into the textile fabric while leaving a plurality of surface fibers exposed and maintaining a textile feel on the surface.

A textile fabric having improved properties, variously including surface stability, abrasion resistance, resistance to edge fraying, moisture control, and resistance to fluid penetration is created by introducing a polymeric solution or a plurality of low-melting particles suspended in a liquid into the textile fabric while leaving a plurality of surface fibers exposed and maintaining a textile feel on the surface.

In one aspect, the present disclosure provides a nozzle for 3-D printing. The nozzle may include a first nozzle tip defining a first outlet, where the first nozzle tip includes a first channel extending therethrough. The nozzle may further include a second nozzle tip defining a second outlet, where the second nozzle tip includes a second channel extending therethrough, and where the first channel surrounds the second outlet. The second nozzle tip may be retracted longitudinally with respect to the first nozzle tip such that the second outlet of the second nozzle tip is located in the first channel.

The present invention relates to a polymer composition for forming fibers for reinforcement of cement-based composites, polymer fibers made from the composition and methods of making the polymer fibers. The polymer composition comprises an olefin polymer and a bonding agent comprising vinyl alcohol based polymer, a pozzolanic material or a combination thereof.

A hydrophilic fluororesin tube includes a tube wall that contains a fluororesin fiber deposited to form a nonwoven fabric, and satisfies the following requirement (1): requirement (1); the tube wall of the hydrophilic fluororesin tube demonstrating an average transmittance, when immersed in water at 25° C. for 1 minute, of 40% or larger at 400 to 700 nm wavelength.

A hydrophilic fluororesin tube includes a tube wall that contains a fluororesin fiber deposited to form a nonwoven fabric, and satisfies the following requirement (1): requirement (1); the tube wall of the hydrophilic fluororesin tube demonstrating an average transmittance, when immersed in water at 25° C. for 1 minute, of 40% or larger at 400 to 700 nm wavelength.

The present invention relates to a composition, textile, and mask for reducing the inhalation of pollutants. The composition includes an aqueous solution of an inorganic iodide compound, a metal phthalocyanine, and a polymeric binder. The inorganic iodide can be cuprous iodide, the metal phthalocyanine can be iron phthalocyanine, and the polymeric binder can be polyvinylpyrrolidone or polyvinyl alcohol. This pollutant-inactivating composition neutralizes pollutants such as nitrogen dioxide, sulfur dioxide, ozone, volatile organic compounds and other unpleasant airborne agents, without requiring elevated temperatures or bulky canisters containing adsorbents. Optionally, a humectant can also be incorporated into the coating solution to retain moisture in the active filter matrix, which enhances the activity of the composition to inactivate oxidizing gases and other toxic constituents of air pollution.

The present invention relates to a composition, textile, and mask for reducing the inhalation of pollutants. The composition includes an aqueous solution of an inorganic iodide compound, a metal phthalocyanine, and a polymeric binder. The inorganic iodide can be cuprous iodide, the metal phthalocyanine can be iron phthalocyanine, and the polymeric binder can be polyvinylpyrrolidone or polyvinyl alcohol. This pollutant-inactivating composition neutralizes pollutants such as nitrogen dioxide, sulfur dioxide, ozone, volatile organic compounds and other unpleasant airborne agents, without requiring elevated temperatures or bulky canisters containing adsorbents. Optionally, a humectant can also be incorporated into the coating solution to retain moisture in the active filter matrix, which enhances the activity of the composition to inactivate oxidizing gases and other toxic constituents of air pollution.

A composition to be used for providing permanent hydrophilic finishing of textile fibers and textile products made thereof consists of at least one anionic surfactant based on a neutralized phosphoric acid ester of a fatty alcohol having at least 12 C-atoms in a proportion of 25 to 80 weight percent, a non-ionic consistency enhancer in a proportion of 10 to 50 weight percent, a hydrophilically modified polyalkylsiloxane in a proportion of 3 to 35 weight percent and a hydrotropic dispersion additive in a proportion of 0 to 5 weight percent, each based on the total weight of the composition. The composition is preferably present as a granulate and has a melting point of at least 45° C.