Laundry treatment compositions
A technology for treating compositions and compositions, which is applied in the direction of washing composition dyes, etc., and can solve the problems such as the degree of deposition of polyester fibers is not obvious, the color of clothing turns yellow, etc.
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Embodiment 1
[0057] Prepare approximately 1000 ppm ethanol solutions of the various dyes listed in the table below.
[0058] A 1.8 g / L stock solution of the basic detergent powder in water was prepared. The detergent powder contains 18% NaLAS, 73% salts (silicates, sodium tripolyphosphate, sulfates, carbonates), 3% minors (including perborates, optical brighteners and enzymes) , and the balance is impurities and water. This solution was divided into 100 ml aliquots and the solvent dye was added as a solution in ethanol to give a solution of approximately 5.8 ppm. 1 g of neat polyester woven fabric was added to each wash solution, and the solution was shaken for 30 minutes, rinsed and dried. It was clear from the color of the fabric that the dye had been deposited on the fabric. For quantitative analysis, the color is measured using a reflectance spectrometer and expressed as the difference (ΔE) from the E value of the polyester that has been washed in the same way but without the dye. ...
Embodiment 2
[0061] To examine the sensitivity of deposition to formulation components, the test of Example 1 was repeated, except that different wash solutions listed below were used, 4.9 ppm of Solvent Violet 13 was used in the solution and polyester nonwoven fabric (fleece fabric). All wash experiments were performed without dye, and the color of the fabrics was compared using a reflectometer and expressed as ΔE. The result is as follows:
[0062] washing conditions
[0063] In all cases the dye was deposited on the polyester.
Embodiment 3
[0065] Solutions of each dye listed in the table below at a concentration of 50 ppm in ethanol were prepared. The concentration refers to the concentration of the dye obtained from the supplier. Typically solvent dyes are pure (>90%) and disperse dyes are 20-50% pure.
[0066] A 1.8 g / L stock solution of the basic detergent powder in water was prepared. The detergent powder contains 18% NaLAS, 73% salts (silicates, sodium tripolyphosphate, sulfates, carbonates), 3% minors (including perborates, optical brighteners and enzymes) , and the balance is impurities and water. This solution was divided into 100ml aliquots and the solvent dye was added as a solution in ethanol and stirred rapidly to obtain a 200ppb solution. 1 g of a woven fabric of pure polyester was added to each wash solution, and the solutions were then shaken for 30 minutes, rinsed and dried. It was clear from the color of the fabric that the dye had been deposited on the fabric. For quantitative analysis, th...
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