The invention discloses an environment-friendly leuco dye vegetable oil solvent, prepared from the following components by mass percent: 10-40% of component A, 40-750% of component B and 10-20% of methyl chloride, and the sum of the mass percentage of the above components being 100%. The component A is vegetable oil or vegetable oil methyl ester, and the component B is epoxy vegetable oil or epoxy methyl ester.

The present invention provides C.I. Pigment Yellow 155 having a methanol wettability (MW value) of the pigment powder of 10% to 2%, each inclusive.

The invention discloses an environment-friendly leuco dye vegetable oil solvent, prepared from the following components by mass percent: 10-40% of component A, 40-750% of component B and 10-20% of methyl chloride, and the sum of the mass percentage of the above components being 100%. The component A is vegetable oil or vegetable oil methyl ester, and the component B is epoxy vegetable oil or epoxy methyl ester.

The present invention solves the problem of providing a method for stabilizing a solid pigment. The problem is solved by a method for stabilizing at least one solid pigment selected from the group consisting of solid carotenoid pigments and solid curcumin pigments, the method comprising the step of mixing the solid pigment with a lipophilic liquid in an amount of 200 parts by mass or less per 100 parts by mass of the solid pigment.

The present disclosure discloses application of a deep eutectic solvent in textile dyeing, belonging to the technical field of ecological dyeing and finishing of textiles. A natural hydrophobic deep eutectic solvent system (HDES) is first used as a dyeing medium to perform reactive dyeing on cotton. Firstly, the prepared natural hydrophobic deep eutectic solvent is mixed with a small amount of dye aqueous solution at high speed to prepare dye liquor, and then cotton fabric soaked with alkali liquor is put into a dye bath for dyeing. The dyeing method doesn't require addition of inorganic salts and other dyeing auxiliaries, but uses a small amount of water and alkali agent to achieve the same dyeing effect as traditional water bath, and the dyeing medium is safe and environment-friendly. After dyeing, cyclic dyeing can be achieved by simply separating the dye bath, which truly realizes green dyeing of reactive dyes.

Methods and compositions for removing precipitates or reducing the formation of precipitates generated in hematoxylin solutions. The methods and compositions feature cleaning solutions that feature chemical compounds that initiate processes including but not limited to acidification of the waste solution, chelation of metal ions in the waste solution, reduction reactions, oxidation reactions, and metal salt addition reactions.

A laundry care composition including: (a) at least one laundry care ingredient and (b) a least one compound represented by Formula (I):

##STR00001##

The ratio of Formula I to its oxidized form is at least 1:3 and each individual R.sub.o, R.sub.m and R.sub.p group on each of rings A, B and C is independently selected from the group consisting of hydrogen, deuterium and R.sup.5. At least one of the R.sub.o and R.sub.m groups on at least one of the three rings A, B or C is hydrogen and each R.sub.p is independently selected from hydrogen, OR.sup.1 and NR.sup.1R.sup.2. G is independently selected from the group consisting of hydrogen, deuterium, and mixtures thereof. Methods of treating textiles with such detergent compositions.

The present disclosure provides stabilized hematoxylin formulations having a pH of less than 2.4. In general, the stabilized hematoxylin formulations comprise a solvent, a hematoxylin dye, and an acid. The present disclosure also provides methods of using such stabilized hematoxylin formulations to stain biological samples. The present disclosure also provides for methods of readjusting the pH of a stabilized hematoxylin formulation to provide a hematoxylin staining solution.

The present disclosure provides stabilized hematoxylin formulations having a pH of less than 2.4. The present disclosure also provides methods of using such stabilized hematoxylin formulations to stain biological samples.