Processes to dye and treat BCF yarn
A technology of yarn and dye composition, applied in the direction of dyeing, thin material treatment, fiber treatment, etc.
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Embodiment 1
[0066] Embodiment 1 (comparison)
[0067] exist figure 1 Two 920 denier 8 dpf colorless nylon 6,6 BCF yarns were processed on a Volkman twister as described in to form a 5.75 tpi (twist per inch) 2-ply cabled yarn. The twisting speed was about 7000 rpm (turns per minute) and the winding speed was about 50 m / min. The cabled yarn has no color. The cabled yarn was heat set on a Superba and converted on a 1 / 8 ga tufting machine to a cut pile carpet of 22 / 32 inch pile height, 35 oz / square yard carpet and dyed on a continuous dye line to obtain Medium pie crust color. This example was carried out by dyeing the carpet using a continuous dyeing machine using state-of-the-art carpet manufacturing methods.
Embodiment 2
[0068] Embodiment 2 (the present invention)
[0069] exist figure 2 Two 920 denier 8 dpf colorless nylon 6,6 BCF yarns were processed on a Volkman twister as described in to form a 5.75 tpi (twist per inch) 2-ply cabled yarn. A wicking dye applicator is inserted between the take-up roll and the winder. Acid dye mixture (Blue 4R 5.0 g / l and Orange 3G 2.0 g / l in deionized water, pH 9.47) was applied to the cabled yarn using a 0.5 inch wide by 1 inch thick cotton wick (wet wick, Perperell MA) on-line. The twisting speed was about 7000 rpm (turns per minute) and the winding speed was about 50 m / min. The cabled yarns were heat set on a Superba at 265°F and tufted on a 1 / 8 ga tufting machine to a cut pile carpet of 22 / 32 inch pile height, 35 oz / square yard of carpet. The tufted carpet has a medium shade of green (L 51.26, a-9.71, b +1.45, Minolta).
Embodiment 3
[0070] Embodiment 3 (the present invention)
[0071] exist figure 2 Two 920 denier 8 dpf colorless nylon 6,6 BCF yarns were processed on a Volkman twister as described in to form a 5.75 tpi (twist per inch) 2-ply cabled yarn. A wicking dye applicator is inserted between the take-up roll and the winder. Acid dye mixture (Orange 3G 5.712 g / l, Red 2B 2.52 g / l in deionized water, pH 6) was applied to cabled yarn using a 0.5 inch wide by 1 inch thick cotton wick (wet wick, Perperell MA) on-line. The twisting speed was about 7000 rpm (turns per minute) and the winding speed was about 50 m / min. The cabled yarns were heat set on a Superba at 265°F and tufted on a 1 / 8 ga tufting machine to a cut pile carpet of 22 / 32 inch pile height, 35 oz / square yard of carpet. This tufted rug is bright brown in color (L 39.17, a 10.48, b 18.14, Minolta). There were many dark, medium and light spots randomly distributed on the blanket, which produced an interesting salt and pepper toner mi...
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