Phthalocyanine - navy warship;

Direct or substantive dyeing is normally carried out in a neutral or slightly alkaline dye bath, at or near boiling point , with the addition of either sodium chloride (NaCl) or sodium sulfate (Na 2 SO 4 ) or sodium carbonate (Na 2 CO 3 ). Direct dyes are used on cotton , paper, leather , wool, silk and nylon . They are also used as pH indicators and as biological stains .

Beautybutdebtfree, I've seen the steel wool stains in internet photos - they are much darker than I am looking for, and again there is no control over the actual colour. Unless they are used in a multi-step process?

The effects of colour can be purely optical (eg. draws the viewer's eye), emotional (eg. cool colours like blue or green have a calming effect, while red or yellow are more stimulating to the senses), or aesthetic (eg. the beauty that springs from the juxtaposition of two or more harmonious colours), to name but three. In keeping with the principles of colour theory and the layout of the colour-wheel, all these effects on the viewer will also vary according to the combination of hues (actual colours) present, their luminosity (the degree of light or dark they possess) and chroma (the purity of the hue). In addition, a colour's impact varies according to its neighbouring colours on the canvas. A grey surrounded by blue will appear cool, while grey surrounded by yellow appears warm. A final influence on how colour is perceived, is the overall range of tones present in the painting - known sometimes as the tonal key. A dab of (say) yellow on a canvas with an overall low (dark) tonal key (eg. a Rembrandt picture) will have different impact than in one with a high tonal key.

These are transparent primaries to paint with. Transparent yellow, transparent magenta and transparent cyan. These colors mixed will make red, blue and green, adding white will make them tints and opaque. This color wheel shows where the colors are positioned and how they get dark to match crystals.

For similar reasons Schools and Universities love to include different variations of blue in their coats of arms, uniforms and here we have a selection of ten blue colors named after the prestigious schools, where they are used:

requirements and some shall have visual matches for chromaticity as listed in table I. Aircraft Green, 34031, Interior Aircraft Black, 37031, Aircraft Gray, 36300, and Dark Sandstone, 33510 shall visually match the appropriate chips from FED-STD-595. Aircraft Green, 34031 shall visually match color chips furnished by . Army Research Laboratory, ATTN: AMSRD-ARL-WM-MC (C3T), Building 4600, Deer Creek Loop, Aberdeen Proving Ground, MD 21005-5069. All other colors listed in shall visually match the appropriate chip from FED-STD-595. The camouflage colors listed in table I, except the aircraft colors and Dark Sandstone, 33510, shall meet the infrared reflectance requirements of table I when tested as in . The aircraft colors and Dark Sandstone, 33510 shall meet the infrared reflectance requirements of table I when tested as in . The color Dark Green, 34082 and Green 383, 34094 shall meet the spectral reflectance limits specified in table III. Camouflage system colors . The colors of the camouflage system shall fall within National Bureau of Standards (NBS) units of the values listed in table I using tristimulus color coordinates. Obtain brightness (Y) and chromaticity (x, y) values under standard illuminant C, and the 2-degree standard observer angle in accordance with paragraph . TABLE I. Color and reflectance requirements using tristimulus color coordinates .

Phthalocyanine - Navy Warship;Phthalocyanine - Navy Warship;Phthalocyanine - Navy Warship;Phthalocyanine - Navy Warship;