摘要:
A liquid dye composition comprising an organic solvent-soluble premetallized azo dyestuff in a volatile organic solvent medium, said composition further containing a finely divided silica thickening agent and/or xylol, toluol, perchlorethylene or mineral spirits or any mixture thereof. A process for coloring a porous substrate, preferably stone, comprising applying thereto a liquid dye composition comprising an organic solvent-soluble premetallized azo dyestuff in a volatile organic solvent medium, said composition being preferably as described above, and allowing the composition to penetrate the substrate, preferably followed by treating the penetrated substrate with an aqueous solution of a copper salt or a polymerizable organic siliconate, and then removing any excess unpenetrated composition from the substrate.
摘要:
Dyes of the formula: ##STR1## wherein M is a metal selected from calcium and magnesium and provided that where M is calcium the dye is in the beta crystalline form are superior dyes for the dyeing of fiberglass in that they are resistant to crystal growth in dye pastes and recycle process water in the dyeing of fiberglass. Thus, in the spray dyeing of the fiberglass the dyes do not tend to clog the nozzle of the spraying device as do the corresponding salts of monovalent metals, such as the sodium salt.
摘要:
The invention herein provides for an improved dye material composed of a dry particulate mixture of azo and phthalocyanine dyes for concrete surface applications.
摘要:
A red dye composition comprising the dye compound ##STR1## wherein R.sup.1.spsp..sym. and R.sup.2.spsp..sym. are alkali metal cations or ammonium ions of a lower alkylol amine, and R.sub.3 is hydrogen or lower alkyl, and at least one rhodamine dye.
摘要:
Glass fibers are coronized and then contacted with aqueous chromic acid. The chromic acid treatment increases the surface area of the fibers and deposits chromate ions on their surface. The treated fibers are washed to remove excess chromate ions, dyed with a cationic or mordant dye and then overcoated with a suitable material, e.g., a plastic or elastomeric film or a chrome complex.
摘要:
Methods for imparting decorative weave effects and designs to fibrous glass fabrics in post-weaving operations particularly comprising the transformation of stresses existing in a given weave design to yield a uniform weave pattern are provided.
摘要:
The present invention provides acidic compositions and methods that are adapted to impart color to cementitious or mineral substrate surfaces. Specifically, the present invention relates to acidic compositions and methods adapted to treat cementitious or mineral substrate surfaces that have the advantage of using a less corrosive acid-based solution. The acidic composition incorporates species including a weak base in equilibrium with a conjugate acid. The presence of such species moderates the corrosive behavior of the acid while still allowing excellent coloring action to occur.
摘要:
The invention relates to a process for adsorptive coloration of anodically oxidized surfaces of aluminum and/or aluminum alloys, characterized in that a) an aqueous dyebath is provided, said aqueous dyebath containing an organic dye that fluoresces on irradiation with UV light of a wavelength between 300 and 400 nm, containing not more than 0.4 g/liter of alkaline earth metal ions and having a pH between 4.0 and 10, b) said anodically formed surface is colored by immersion in and/or spraying with said dyebath (a) at a temperature between 10 and 50° C., and c) the colored surface is sealed.