Abstract: Melamine fibers and cellulose fiber combinations are dyed with certain dyes such that the cellulose fiber is dyed by the dyes but the melamine fiber is substantially undyed. When in fabric form, a chambray appearance is given.

Abstract: Stable dispersions of benzotriazole U.V. absorbing agents utilizing modified ligninsulfonates as the dispersing agent. The modified ligninsulfonates are formaldehyde condensates of ligninsulfonate. The disclosed dispersions have improved stability at elevated temperatures and improved application characteristics.

Abstract: A hermetic enclosure assembly, having utility for preservational storage and/or display of objects susceptible to degradation by exposure conditions such as ultraviolet radiation, visible light, oxygen, humidity, microbial, fungal, and insect species, internal acidity and external acidic gases, and the like. The enclosure assembly includes a gas-impervious housing, a mounting base, and a back cover plate, with an oxygen indicating means in communication with an interior volume of the enclosure assembly, and a slow vapor-released deacidification medium being arranged for dispersing deacidification medium vapor into the interior volume of the enclosure assembly. Also disclosed is an appertaining method of preservationally and protectively enclosing an object for storage and/or display. The invention has particular utility in the storage and/or display of cellulosic objects, which are especially susceptible to embrittlement and decay at low pH conditions, in exposure to visible light, oxygen, and moisture.

Abstract: A method for reforming a cellulose fiber cloth comprising applying an aqueous solution of a monocyclic aromatic hydrocarbon dissolved in a water soluble organic solvent to a cellulose fiber cloth and soaking the resultant cloth in a non-dried state with a concentrated sulfuric acid solution.

Abstract: The invention provides fine writing parchment made from the skins of turkeys. The invention also provides a process for preparing fine writing parchment from the skins of turkeys comprising liming, defatting, washing and stretching the skins.

Abstract: A solar chemical process for converting sewer sludge from a gelatinous mass into a manageable product suitable for fertilizer includes the manufacture of a carbonaceous product by treating cellulose waste such as newspaper with sulfuric acid and heating the mixture until the cellulose product becomes substantially black. The black product is mixed with sludge in a ratio to produce a grainy product that can be chlorinated for sterility and spread as fertilizer. In a modified version of the process, coal ash is added to the sludge with the carbonaceous product for its nutrient value, and sand may be added with the coal ash to aid in aeration of the soil.