A method to produce a dye, which is suited to be applied on fabrics, starts from textile waste material. The method includes an initial step, during which textile waste material is provided, which includes textile fibers, which were previously dyed. In a pulverization step, the textile fibers are pulverized to obtain the dye.

The present invention relates to compositions for the preparation of solutions for contrast staining of biological, cytological, histological and autopsical samples, and their use in the preparation of said samples to be analysed.

The present invention relates to dry particulate encapsulation compositions comprising a water-insoluble matrix comprising at least 70% by weight of proteins, based on the total weight of the matrix and a moisture content of about 5 to 10% by weight, based on the total weight of the matrix and an encapsulate encapsulated in the matrix, wherein the matrix once wetted in a clear colorless aqueous solution or in mineral oil has a lightness value (L*) greater than about 40, a color vividness or Chroma (C*) lower than about 33 and a hue angle between about 70 and 90. The encapsulation compositions of the present invention are useful in encapsulating dyes, medications and vitamins. Fine particulate encapsulation compositions comprising natural dyes can be used in lieu of artificial lakes in confectionery, cosmetics and caplets color coatings.

The present disclosure is drawn to aqueous pigment co-dispersions. The co-dispersions include self-dispersed pigment with a chemically modified surface; released surface moieties from the self-dispersing pigment; pigment powder having the released surface moieties associated with pigment powder surfaces; polymeric dispersant; and water.

A colorimetric radiation detector and a method for detecting radiation is disclosed. The colorimetric radiation detector also includes a metal oxyhalide that reaches an excited state on exposure to x-ray or ultraviolet radiation. The detector also includes a dye or where the metal oxyhalide is a bismuth oxyhalide, such as a bismuth oxychloride. The dye may include a redox reactive dye. The redox reactive dye may include Rhodamine B. The dye undergoes a permanent color change by reacting with the metal oxyhalide when the metal oxyhalide is exposed to x-ray or ultraviolet radiation. The dye may include a fluorescent dye, such as a fluorescein dye, such as 6-carboxy fluorescein or 5-carboxy fluorescein. The solvent may include a Lewis base solvent. The Lewis base solvent may include water or an alcohol. A method for evaluating a photoprotective topical lotion is also disclosed.

The present invention relates to dry particulate encapsulation compositions comprising a water-insoluble matrix comprising at least 70% by weight of proteins, based on the total weight of the matrix and a moisture content of about 5 to 10% by weight, based on the total weight of the matrix and an encapsulate encapsulated in the matrix, wherein the matrix once wetted in a clear colorless aqueous solution or in mineral oil has a lightness value (L*) greater than about 40, a color vividness or Chroma (C*) lower than about 33 and a hue angle between about 70 and 90. The encapsulation compositions of the present invention are useful in encapsulating dyes, medications and vitamins. Fine particulate encapsulation compositions comprising natural dyes can be used in lieu of artificial lakes in confectionery, cosmetics and caplets color coatings.

The present invention relates to a laundry detergent composition comprising a particle comprising hueing agent and clay. The particle can be incorporated into laundry detergent products, such as a laundry detergent powder. The particle exhibits an excellent storage stability profile with very little bleeding of the hueing dye from the particle, exhibits excellent fabric deposition of the hueing dye during a laundering process without causing any spot staining of the fabric, and does not impact the visual appearance of a laundry detergent powder when incorporated therein.

The problem addressed by the present invention is to provide a high heat-resistant phthalocyanine. The phthalocyanine is separated by mixing a phthalocyanine separation solvent and a phthalocyanine solution wherein a phthalocyanine starting material is dissolved in a solvent. The phthalocyanine is wherein having high heat resistance, the decomposition temperature of the separated phthalocyanine being at least 10 C. higher than the decomposition temperature of the phthalocyanine starting material. Also, the phthalocyanine solution may be the result of dissolving at least two types of phthalocyanine starting material in the solvent, the separated phthalocyanine being wherein containing a solid solvent of the at least two types of phthalocyanine starting material and by the decomposition temperature of the separated phthalocyanine being at least 10 C. higher than the decomposition temperature of a mixture of at least two types of phthalocyanine separated by mixing the phthalocyanine separation solvent and each of at least two types of phthalocyanine solution resulting from dissolving each of the at least two types of phthalocyanine starting material in a solvent.

A solid colorant including a. 30-97 wt % of a pigment, b. less than 5 wt % of a solvent c. 3-40 wt % surfactants and wherein: the ratio S/A [Std dev of the particle size distribution/average particle size] of the solid colorant is <25%, preferably <22% and more preferably <20%, wherein wt % is relative to the total weight of the solid colorant, and wherein the particle size distribution is determined with light scattering with fully automated image analysis according to ISO 13322-1 Static image analysis First edition 2004-12-01 by the use of the OCCHIO ZEPHYR ESR analyzer. A process for making the solid colorant, and the use of the solid colorant for tinting base paints by volumetric dosing of the solid colorant to the base paint.

A laundry detergent composition having a particle, wherein the particle has: (a) hueing agent, wherein the hueing agent has the following structure: ##STR00001## wherein: R.sub.1 and R.sub.2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido; R.sub.3 is a substituted aryl group; X is a substituted group comprising sulfonamide moiety and optionally an alkyl and/or aryl moiety, and wherein the substituent group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties; (b) clay; and (c) another detergent ingredient.