TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The aluminum particle exhibits an average particle size of 1-100 mu m. The aluminum particle, in the form of a paste, comprises aluminum particles, a stabilizer and a solvent.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further comprises a step (iv) of adjusting the pH value of the dye solution obtained in the step (iii) from 4.5 to 8.5. In the method-2, the amount of the dye solution used is 0.2-1.5 wt.%, relative to the weight of the shaped articles. Preferred Composition: The obtained aqueous solution, obtained in step (i), comprises 0.25-5 wt.% of the thickening agent, relative to the total weight of the aqueous solution. The dye solution exhibits a pH of 4.5-8.5 and viscosity (determined according to DIN 53018) of at most 120 mPa.s. Preferred Components: The thickening agent comprises optionally modified polysaccharide (preferred), or xanthan gum. The additive is a defoaming agent, a preservative, an antioxidant or a mixture of at least two of the above components.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The binder is a polymer dispersion, in which the polymer is based on vinyl acetate monomer (preferred) or a copolymer made from vinyl acetate and a fatty acid vinyl ester. EXAMPLE - Kelzan T (RTM: Xanthan gum) (10 g) was added into water (990 g) to obtain 1 wt.% of an aqueous thickening solution, whose viscosity, determined according to DIN 5038, was 3000 mPa.s. The thickening solution was homogenized. Subsequently, Stapa hydroxal WH 8 (RTM: Aluminum pigment paste) (75 g) and Aldepol VAV-25 (RTM: Aqueous dispersion of vinyl acetate and versatic acid vinyl ester) (200 g) were homogenously stirred to obtain dye solution-precursor. Subsequently, water (373 g), BYK 036 (RTM: Emulsion of paraffin-based mineral oils and hydrophobic components containing silicone) (1 g) and Bacillat TK (RTM: Tetrahydro-1,3,4,6-tetrakis(hydroxy-methyl)-imidazo-(4,5-d)imidazole-2,5(1H, 3H)-dione and 2-methyl-2H-isothiazol-3-one) (1 g) were added and mixed to obtain dye solution. Sodium hydroxide solution (20 wt.%) was added to adjust the pH from 3.5-6.5, where the obtained dye solution (exhibited a viscosity of 100 mPa.s determined according to DIN 53018) comprised Aldepol VAV-25 (RTM: Aqueous dispersion of vinyl acetate and versatic acid vinyl ester) (20 wt.%), Stapa hydroxal WH 8 (RTM: Aluminum pigment paste) (7.5 wt.%), Kelzan T (RTM: Xanthan gum) (0.1 wt.), BYK 036 (RTM: Emulsion of paraffin-based mineral oils and hydrophobic components containing silicone) (0.1 wt.%), Bacillat TK (RTM: Tetrahydro-1,3,4,6-tetrakis(hydroxy-methyl)-imidazo-(4,5-d)imidazole-2,5(1H, 3H)-dione and 2-methyl-2H-isothiazol-3-one) (0.1 wt.%), 20 wt.% of sodium hydroxide solution (0.2 wt.%) and water (72 wt.%).