Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/0097—Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D17/00—Pigment pastes, e.g. for mixing in paints
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D17/00—Pigment pastes, e.g. for mixing in paints
  • C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes

Definitions

• Coloring coating systems in particular paints and varnishes
• the invention relates to coloring coating systems, in particular paints and varnishes.
• Coatings for surfaces that are to be colored are usually inked individually for the area to be painted. Although pre-dyed coatings are also available, they are only very limited in terms of color selection because they are limited to just a few shades of color.
• Coloring coating systems hereinafter referred to simply as paint or lacquer for the sake of simplicity, are usually initially provided in the factory as a white or colorless matrix.
• Colored pigment preparations usually pastes, or so-called tinting inks, which have a lower pigment content than pastes, are mixed into the matrix in order to mix in the respectively desired, individual color shades. The mixing takes place both manually with the help of tinting colors and automatically in so-called color mixing machines using pigment pastes. The mixing is done by the processor, ie the specialist tradesman or his dealer, the hardware store or the DIY craftsman.
• Pigments in the form of agglomerates are present as a solid as a solid, which can not be mixed directly into paints or lacquers.
• these agglomerates must first be broken down into primary grains using high shear forces and the use of wetting agents and dispersants, so that a sufficient dyeing power of the pigments in paint or varnish is first released.
• These primary grains are not stable in position; therefore, they are immediately further processed into pastes or tints at the factory.
• Document CH 630401 discloses the processing of pigments into tablets.
• pigments such as azo pigments, together with a sodium
• ALL02356.RTF trium-, potassium or ammonium salt of a polyacrylic acid in a tablet. To disperse the tablet is dissolved in the binder color.
• pigments generally tend to form 5 agglomerates, so that a satisfactory color distribution in the binder color can not be achieved with the measures described in CH 630 401.
• the use of compressed pigments has not found its way into practice.
• a coating system for color-providing coating of surfaces comprising a liquid matrix as first component and a second component comprising at least one pigment preparation in solid form, characterized in that the pigment preparation is portioned, wherein the portion the pigment preparation is each tuned to a predetermined amount of the liquid matrix and is soluble in the matrix.
• the release or incorporation can be done manually or by a mixing machine. However, it is assumed that mixing is done frequently by hand so that the coating system according to the invention is primarily geared to good manual miscibility.
• the manual mixing of the pigment preparation present in solid form requires intensive thorough mixing of the matrix, which, however, can be carried out with simple means. Often a patch on a hand drill whisk is used with which z. b. Usual amounts of binder color (51, 101 or 201) can easily be colored homogeneously.
• vibrators that mix paint or varnish and pigment pastes together. These vibrators can be readily used for tinting of base material according to the invention by means of pigment preparations in solid form.
• the term "soluble in the matrix” is understood to mean a pigment preparation which, on stirring into a liquid base substance, such as, for example, in a binder color or in water, does not show agglomeration formation they are chemically treated or provided with a coating in suitable pigment preparations, which ensures that the finely ground pigments do not agglomerate when they are mixed into the liquid base material.
• Typical examples of such pigment preparations are WO 2004/000903 or WO 03/066743
• the content of this article is expressly included in the disclosure of this patent application. The idea of portioning was opposed by the fact that pigments in their original form are immiscible as agglomerates, and that agglomerated pigments have no longer developed a constant tinting strength according to the information available to date
• Suitable pigment preparations are obtained, for example, from BASF under the brand “X-Fast®", Lanxess Deutschland GmbH under the trademarks “LEVANYL® Gran” and “LEVANOX® Gran”, from Clariant under the brand name “Colanyl® 400 Series “and sold by Rockwood Pigments (Brockhues) under the trademark” Granufin® ".
• Solid-form pigment preparations according to the invention prove to be advantageous over tinting colors and pigment pastes in practical application.
• the reproducibility of the mixing results when using pigment preparations in solid form is much greater than when using z. B. tinting colors. This is particularly important when small amounts of tinted paint or varnish are needed or when additional amounts of the same tinted paint or varnish are needed.
• the DIY sector is the re-mixing of tinted paint or varnish regularly in demand.
• the lack of precision when tinting with tinting ink or pigment paste is partly attributable to the fact that metering 5 of pigments in liquid or pasty form is much less accurate than the addition of portioned pigment preparations in solid form.
• tinting colors are not available in a sufficiently broad hue spectrum.
• mixtures of pigment preparations are understood as meaning both those mixtures which are already present in a mixture of pigment preparations in a batch.
• mixing of pigment portions of different shades leads - unlike previously possible - to reproducible mixing results when tinting a matrix.
• O can be offered a wide range of colors and shades. It is advisable to put together color plates based on the fact that in each case several portions of the same pigment preparation or several portions of different pigment preparations are mixed into the liquid matrix. Since the amount of pigment preparation added to the base material to be dyed is very small,
• pigment preparations in solid form are economically and ecologically more useful: tinting colors and pigment pastes are offered in standardized quantities, of which only partial quantities are regularly consumed for tinting. The residues dry up and must be disposed of. Since pigments are expensive in comparison to the basic material, only a relatively small proportion of the 5 pigments is actually used as intended, and a large part has to be disposed of in a complicated manner. Even if the consumer uses the entire contents of a bottle of tinting ink, dispose of soiled packaging as the contents of the bottle can never be completely emptied.
• the portionable pigment preparations miscible in the liquid basic mass are pressed in solid form (as powder or as granules) into portions, generally pellets or tablets.
• the pelleting or tableting of the pigment preparations is their miscibility
• the pelletizing or tableting of the portioned pigment preparations offers the advantage that no soiled packaging remains, and that the respective portion of the pigment preparation can be reliably handled and used.
• the pellets or tablets may optionally contain adjuvants which promote the disintegration of the pellets or tablets in the matrix or in a liquid.
• adjuvants which promote the disintegration of the pellets or tablets in the matrix or in a liquid.
• substances which release carbon dioxide in conjunction with water are suitable here.
• mechanical disintegrants for example suitable celluloses, in particular CMC (carboxymethylcellulose).
• suitable disintegrants are disclosed in EP1491621 and EP1004656, which are expressly incorporated in the disclosure of the present patent application. 5
• a further preferred embodiment of the portioned pigment preparations is designed such that the pigment portion is surrounded by a water-soluble coating.
• the water-soluble coating dissolves and the pigments color the liquid matrix.
• the processing or use of the pigment portion is particularly clean, complete and residue-free.
• the pigment portions provided with a liquid or in particular water-soluble coating are suitable both for the manual mixing of pigment preparations into a liquid basic mass and for mechanical processing.
• the pigment portions are offered in at least two different portions.
• a larger portion of pigment can be used to adjust an intense base color, which is then added by adding one or more of the same color or color different pigment.
• ALL02356.RTF ment portions will be tinted more nuanced. As a result, a much greater variety of shades is provided, which can be mixed precisely reproducible, in particular can be mixed manually.
• the pigment portions in particular in the form of pellets or tablets, provided with graduation markings, so that z. B. divided half or one quarter of a pigment portion targeted and can be solved in the matrix.
• the differentiation between different O portion sizes u.U. be achieved in a pellet or tablet.
• the pigment portions can be used particularly effectively for tinting base material if pigment preparations predispersed in liquid, in particular water, are used. Lose the pigment portions in the -related to the
• the amount of pigment preparation required for tinting commercial quantities of binder ink or lacquer is very low. Tablets or pellets are therefore u. U. very small.
• fillers which give the tablets or pellets a practicable size, without these fillers having an adverse effect in the mixing process.
• Typical fillers may be inorganic or organic substances, eg. Chalk, barium sulphate, silica, talc, kaolin or the like.
• they are substances which are compatible with the base material to be dyed, in particular
• the pigment content of the second component should preferably be ⁇ 7O% and particularly preferably ⁇ 5O%.
• the pigment content should be selected depending on the color intensity of the respective pigment. For example, 5 should be selected with a yellow color, a high pigment content, in the case of a violet, however, due to the high color intensity, even a low pigment content may already be sufficient. As a rule, however, a share of 20% should not be undercut.
• the precision and repeatability in coloring the base mass can be further optimized if a pigment preparation in solid form-for example as a tablet-predisperses in a small amount of liquid, in particular water and then incorporated into the matrix.
• a pigment preparation in solid form-for example as a tablet-predisperses in a small amount of liquid, in particular water and then incorporated into the matrix is particularly advantageous in the case of relatively high-viscosity basic materials.
• the additional amount of liquid to be introduced by this process of less than 5%, preferably less than 2%, particularly preferably less than 1%, is so low that it does not affect the usual processing properties of the matrix. It is usually no larger than the amount of liquid needed to make the matrix workable. Since the pigments are not to be stored in aqueous solution for a long time by the process according to the invention, the stability of the dispersion does not matter.
• 8 g of pigment preparation of the color "green", in this case an X-fast® pigment from BASF, 5 is pressed with 8 g of CMC and 4 g of talcum on a conventional tabletting plant and provided with two predetermined breaking lines which make it possible to quarter the tablet
• Two of the abovementioned tablets are dispersed in 150 ml of water and the pigment dispersed in water is stirred into a commercially available, colorless aqueous acrylic varnish Stirring (duration: 1-2 minutes) is carried out by hand using a suitable stirrer

Applications Claiming Priority (3)

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• 2006
  • 2006-02-13 CA CA002595955A patent/CA2595955A1/en not_active Abandoned
  • 2006-02-13 KR KR1020077020143A patent/KR20070113215A/ko not_active Application Discontinuation
  • 2006-02-13 JP JP2007554517A patent/JP2008530286A/ja active Pending
  • 2006-02-13 WO PCT/EP2006/001300 patent/WO2006084760A1/de active Application Filing
  • 2006-02-13 EP EP06706910A patent/EP1846521A1/de not_active Withdrawn
  • 2006-02-13 MX MX2007009607A patent/MX2007009607A/es unknown
  • 2006-02-13 US US11/816,010 patent/US20080060553A1/en not_active Abandoned
  • 2006-02-13 EA EA200701701A patent/EA200701701A1/ru unknown

Non-Patent Citations (1)

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