The textiles for protection against harmful UV radiation have become the focus of great interest in the present time, but all apparel is not well-protected against UV light ; application and improvement of UV absorbers for sun protective fabrics is therefore being sought. A number of different types of UV absorbing compounds were prepared as a means of development of UV protective fabrics. It was found that hydroxybenzophenones bearing groups which are capable of acting as benzotriazole UV absorbers show very high UPF, and play an important role in improving the light fastness of dyes. It was proposed that 2‚2’‚4‚4’-tetrahydroxy-5‚5’-dibenzotriazolylbenzophenone and its derivatives may be used as effective UV absorbers for sun protective fabrics.

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Making pulp fiber conductive is imperative to produce conductive paper. In this study, we experimentally investigate disintegrated pulp fibers electroless plated with nickel to make the fiber conductive. In conventional electroless nickel plating on plastic materials, adding the drying process after the surface activation and catalyst adsorption processes have made electroless plating on the fiber surface possible. Our observations of the cross section of plated pulp fibers and the analysis of its elements verify that a nickel film covering the fiber surface was formed.The plate film became thicker as the plating time and temperature increased. The DC electrical resistance of the plated pulp fiber decreased to 10¹ Ω‚ as the plating time and temperature increased. The AC impedance was converged between 10¹ Ω and 10² Ω as the measurement frequency increased, which verifies that conductivity can be maintained.

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A thin layer of nano TiO₂ was deposited on PET fiber using tetrabutyl titanate by hydrothermal processing. The TiO₂-loaded fiber was characterized by scanning electron microscope (SEM)‚ X-ray diffraction (XRD)‚ Fourier transform infrared spectroscopy (FT-IR)‚ X-ray photoelectron spectroscopy (XPS)‚ differential scanning calorimetry (DSC) and thermal gravimetric (TG) analysis. PET fabrics before and after treatments were also examined for the reflectance spectrum, tensile properties and water absorption. The results showed that pure anatase TiO₂ crystallite could be synthesized from tetrabutyl titanate aqueous solution. The thin film constituted by nano TiO₂ particles was grafted onto the fiber surface by chemical reaction. The onset decomposition temperature decreased but the endothermal and exothermal temperatures increased. As compared with the untreated fabric, the water absorbency of the TiO₂-loaded fabric was slightly improved. Owning to the shrinkage of fabric size‚ the breaking load and tensile strain in warp and weft directions increased to some extent.

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