Alkali donor for reactive dye dyeing, preparation method of alkali donor and application of alkali donor
A technology of reactive dyes and donors, applied in dyeing, textiles and papermaking, etc., can solve the problems of silica gel staining equipment, poor fabric hand feeling, etc., and achieve high level dyeing effect
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[0032] In addition, the present invention also provides a method for preparing the alkali donor used for reactive dye dyeing, comprising the following steps:
[0033] A. Clean and dry the cone mixer;
[0034] B. Quickly add the acetate containing 3 halogen groups into the conical mixer;
[0035] C. In turn, the molecular formula is C 6 h 18 -O 24 P 6 h y m X The compound, alkaline buffer composition and rare earth composition are added;
[0036] D. After adding the raw materials, stir for 30-90 minutes at a speed of 60 rpm, and pack.
[0037] Finally, the present invention provides a use of the base donor in dyeing with reactive dyes. When the amount of alkali donor used for dyeing reactive dyes is 1-10 g / L, preferably 1-4 g / L, good dyeing results can generally be obtained. The material of cotton fabric is cellulose fiber, viscose fiber, modal fiber, and the tissue structure can be knitted fabric, yarn, woven fabric.
[0038] The specific dyeing method uses the pre-t...
Embodiment 1
[0040] The sodium trichloroacetate of 40 parts by weight, the sodium dodecyl phytate of 15 parts by weight, the alkaline buffer composition of 40 parts by weight and the rare earth composition of 5 parts by weight are mixed to prepare the alkali donor for reactive dye dyeing ( Recipe 1).
[0041] The low concentration base donor and dye solutions made in Recipe 1 were stored for several weeks. Use the solution of commercial substitute alkali (the main components are sodium metasilicate and phosphate) as a comparison, measure the pH value of each solution in Table 1, and monitor the stability of the solution.
[0042] Table 1 pH changes of alkali donors and commercial alternative alkalis stored for different times
[0043] storage time 0.2% pH / Stability of the Invention Commercial Alkaline Alternative 0.2% pH / Stability 5 days 11.68 / no precipitation 11.34 / no precipitation 10 days 11.61 / no precipitation 11.36 / no precipitation 20 days 11.67 / n...
Embodiment 2
[0045] The sodium trichloroacetate of 38 parts by weight, the sodium dodecyl phytate of 10 parts by weight, the alkaline buffer composition of 50 parts by weight and the rare earth composition of 2 parts by weight are mixed to prepare an alkali donor for reactive dye dyeing ( Recipe 2).
[0046] At room temperature, immerse 10g of cotton fiber in 100g of working solution, which contains reactive dyes, run at room temperature for 10 minutes, then add sodium chloride 100g / L in two batches within 30 minutes, and then add water and chemicals within 10 minutes 1 / 10 of the alkali donor of formula 2, then run at 2°C / min to 60°C for 5 minutes, and then quickly add the remaining 9 / 10 of the alkali donor of formula 2 within 20 minutes with a curve (slow first and then fast) with clean water , run for 60 minutes, cool down and drain, wash with water, neutralize soap, wash with water.
[0047] Comparative example is commercial substitute alkali (main component is sodium metasilicate and ...
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