WO2005111153A1 - Oberflächenmodifizierte anorganische füllstoffe und pigmente - Google Patents
Oberflächenmodifizierte anorganische füllstoffe und pigmente Download PDFInfo
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- WO2005111153A1 WO2005111153A1 PCT/EP2005/052112 EP2005052112W WO2005111153A1 WO 2005111153 A1 WO2005111153 A1 WO 2005111153A1 EP 2005052112 W EP2005052112 W EP 2005052112W WO 2005111153 A1 WO2005111153 A1 WO 2005111153A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
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- 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
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0004—Coated particulate pigments or dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
Definitions
- the invention relates to a process for the production of surface-modified inorganic fillers and pigments of defined grain size, the fillers and pigments thus obtained and their use.
- inorganic pigments or fillers are bound with binders in the form of polymer dispersions, for example in the production of emulsion paints, adhesives or paper.
- EP 0 515 928 B1 relates to surface-modified platelet-shaped pigments with improved stirring behavior, and to their production process and use.
- the platelet-shaped pigments for example platelet-shaped metals, metal oxides, mica pigments and other platelet-shaped substrates, are coated in a mixing vessel with stirring with a polyacrylate or polymethacrylate or their water-soluble salts and, if appropriate, a solvent or solvent mixture.
- fillers For example, a large amount of fillers is used in the manufacture of paper. Almost all papers are filled with fillers, which give printing and writing papers in particular an even formation, better softness, whiteness and grip. Natural printing papers (uncoated papers) contain up to 35% by weight, coated papers 25% by weight to 50% by weight fillers. The amount of filler depends very much on the intended use of the paper. Heavily weighted papers have lower strengths and poorer sizing.
- the filler content in the paper pulp is usually between 5 and 35% by weight and consists of primary pigments or recirculated coating pigments, which can come from residual coating colors or coated scrap.
- the grain size plays an important role, since it strongly influences the filler yield and the physical properties of the paper, especially the porosity.
- the proportion of filler remaining in the paper is between 20 and 80% by weight of the amount added to the fiber suspension. The yield depends on both the type of filler and the composition of the material, the degree of grinding, the fixing of the filler particles by resin and aluminum sulfate, the paper weight, the speed of the paper machine, the type of water removal and the fineness of the sieve.
- kaolin calcium carbonate
- artificial aluminum silicates and hydrated oxides titanium dioxide
- satin white talc
- calcium silicate a product that is of greater importance as fillers and coating pigments today: kaolin, calcium carbonate, artificial aluminum silicates and hydrated oxides, titanium dioxide, satin white, talc and calcium silicate.
- EP 0 595 723 B1 describes a process for producing batch pigments on a mineral basis, characterized in that a common grinding of a compacting mineral, a layered mineral and / or a plastic pigment in the presence of at least one grinding aid, comprising at least one dispersant, is carried out in an aqueous medium.
- a common grinding of a compacting mineral, a layered mineral and / or a plastic pigment in the presence of at least one grinding aid, comprising at least one dispersant is carried out in an aqueous medium.
- WO 98/01621 describes a process for recycling fillers and coating pigments from the manufacture of paper, cardboard and cardboard from the residual water sludge from the coating waste water, deinking plants, internal sewage treatment plants or separating devices, and the use of a pigment slurry thus obtained for producing a coating slip for the paper industry or for mass use in papermaking.
- An essential element of the invention consists in a process for the recycling of fillers and coating pigments from paper, cardboard and cardboard manufacture from the residual water sludges from the coating waste water, deinking plants, internal sewage treatment plants or separators, which is characterized in that the filler and coating pigment-containing residual water sludges Mixing and then the grinding to a pigment slurry with fresh pigment or fresh filler as a powder, fresh pigment-containing and / or fresh filler-containing slurry.
- the object of the present invention is to improve the contact of inorganic fillers and pigments and binders (binders) in the form of "polymer dispersions and thus a reduction in the required amount of binders or one improved bonding of the fillers or pigments to one another and to the substrate, for the production of filler or pigment slurries, in particular in the paper industry and other fields of application, such as the paint industry or the adhesive industry.
- inorganic pigments of a defined grain size the surface of which, during grinding with binders, hereinafter referred to as polymer dispersions, can be used with advantage in many areas of technology, for example in the paper industry and the paint industry or the adhesive industry.
- a first embodiment of the present invention consists in a process for the production of surface-modified inorganic fillers or pigments of desired grain size, characterized in that filler or pigment slurries of inorganic fillers or pigments under the action of pressure and shear forces using polymer dispersions desired grain size is ground, the fillers and / or pigments being further in contact with known grinding aids and / or dispersants (active substance) in an amount of 0.1 to 2.0% by weight, based on the fillers or pigments brings.
- polymer dispersions which should normally have an adhesive effect, are suitable for providing inorganic fillers and pigments in a form which, compared to the prior art, contains fillers and pigments of the same particle size. Distribution give an increased binding capacity if you bring binders into contact with surfaces of inorganic fillers and pigments during the grinding of the fillers and pigments to the desired grain size.
- the binders can originate from materials to be recycled, for example residual water sludge, or can also be added directly.
- the polymer particles do not lead to the filler particles and pigment particles sticking or agglomerating, but apparently form a fine film on the surface of the fillers or pigments, which have a much better adhesion to one another and to the substrate, for example fibers in the paper industry ,
- a particularly preferred filler or pigment for modification in the sense of the present invention is calcium carbonate, in particular natural and / or precipitated calcium carbonate.
- fillers and pigments known in the art can also be used, such as, for example, kaolin, artificial and / or natural aluminum silicates and aluminum oxide hydrates, titanium dioxide, satin white, dolomite, mica, metal flakes, in particular aluminum flakes, bentonite, rutile, Magnesium hydroxide, gypsum, layered silicates, talc, calcium silicate and other stones and earths.
- the fillers and pigments defined above in an amount of 10 to 90 % By weight, in particular 30 to 70% by weight, based on the slurry, in particular water.
- the fillers or pigments When the fillers or pigments are applied, for example as a component of coating color in paper production, a high proportion of the binder usually migrates into the paper surface. A large part of the binder knocks into the base paper before it is filmed. The top coat is poor in binders and so-called plucking occurs. However, if the polymer binder is ground onto the filler or the pigment, the migration of the binder does not occur or only to a small extent; that is, the offset strength (resistance to picking) is higher because no (or little) binder is lost when knocked away. In the prior art, however, the loss of binder must be compensated for by an increased proportion of binder in the coating color.
- polymer dispersions comprise the resin solids per se and their dispersions (latices) of finely divided natural and or synthetic polymers, in particular in a particle size of 0.05 to 6 ⁇ m. These are usually in the form of aqueous, more rarely non-aqueous, dispersants.
- polymers such as natural (rubber latex) and synthetic rubber (synthetic latex)
- synthetic resins synthetic resin dispersions
- plastics plastic dispersions
- plastic dispersions such as polymers, polycondensates and polyadditone compounds, especially those based on polyurethane, styrene / butadiene, Styrene / acrylic acid or ester, Styrene / buta
- Corresponding polymer dispersions are available under the product names Basonal ® , Acronal ® and Styronal ® as binders for the emulsion paint industry and also for paper and board coating.
- these polymer dispersions are incorporated into the usually neutral to alkaline filler or pigment slurries without excessive shear by stirring, without any change in the grain size of the filler particles or pigment particles.
- these are brought into direct contact with the inorganic fillers and pigments by the action of pressure and shear forces.
- inorganic fillers and pigments Under the influence of pressure and shear forces during grinding, surface-modified inorganic fillers and pigments are obtained which have an improved binding effect compared to the prior art.
- the amount of polymer dispersions that are brought into contact with the inorganic fillers or pigments is of some importance.
- the inorganic fillers or pigments it is particularly preferred to bring the inorganic fillers or pigments into contact with an amount of 0.1 to 50, in particular 5 to 15,% by weight of polymer dispersion (solids), based on the amount of pigment.
- the polymer dispersions are usually in aqueous or non-aqueous form with a solids content of 40 to 60% by weight, in particular 50% by weight.
- the inorganic fillers or pigments are also brought into contact with dispersants or grinding aids known per se, in particular polyacrylates.
- polyacrylates are described, for example, in EP 0 515 928 B1 mentioned at the beginning, to which reference is made in full in this regard.
- the fillers or pigments are brought into contact with the above-mentioned active dispersant substance in an amount of 0.1 to 2.0, particularly preferably 0.2 to 0.4% by weight, based on the solid substance.
- the fillers and coating pigments are often in agglomerated form and with a lower whiteness, which limits or even makes impossible reuse in raw material processing, especially in paper coating.
- a defined, concentrated pigment slurry or filler slurry is also obtained using residual water slurries, which can be used, for example, in the paper, cardboard and cardboard manufacture or paint and adhesive industry.
- fillers and coating pigments both as a powder or in the form of a concentrated slurry which has 50 to 80% by weight solids.
- These fillers and pigments are usually provided by the manufacturers with the desired whiteness and grain size distribution.
- An essential element of the present invention now consists in the use of the inorganic fillers and pigments in a type of "base grain", preferably as a solid or also as a highly concentrated slurry, for example with a solids content of 70% by weight to 85% by weight or more , for example with an average grain diameter of 50% ⁇ 1 ⁇ m to 50% ⁇ 15 ⁇ m, in particular 50% ⁇ 3 ⁇ m to 50% ⁇ 8 ⁇ m and grinding in the presence of the polymer dispersion, in particular in the aqueous phase, to the desired grain size.
- base grain preferably as a solid or also as a highly concentrated slurry, for example with a solids content of 70% by weight to 85% by weight or more , for example with an average grain diameter of 50% ⁇ 1 ⁇ m to 50% ⁇ 15 ⁇ m, in particular 50% ⁇ 3 ⁇ m to 50% ⁇ 8 ⁇ m and grinding in the presence of the polymer dispersion, in particular in the aqueous phase, to the desired grain size.
- slurry containing fresh pigment and / or filler can be ground to the desired whiteness and fineness and then used as filler or coating pigment.
- the mineral fillers and pigments mentioned are usually ground to the desired particle size in wet or dry processes. A proportion of water is naturally required for wet grinding. Some or all of the water required for grinding the inorganic pigments can be obtained from the Residual water sludge can be replaced. Agglomerates of the fillers or pigments that are usually present in the residual water sludges do not interfere, or do so little, since they are comminuted to the desired particle sizes in the course of the grinding process.
- the pigment and filler particles of the residual water sludge which are intended for use as filler or pigment, act here as grinding aids and dispersing aids for the destruction of the agglomerates in the grinding process.
- the residual water sludge including the loaded particles, acts as a dispersing aid and grinding aid for the added fillers and pigments in the grinding process, so that the conventional amounts of binders, dispersing aids and grinding aids can be reduced according to the invention.
- the residual water sludge with a solids concentration of 0.02% by weight to 60% by weight, in particular 1% by weight to 30% by weight, for mixing and subsequent grinding with polymer dispersion and fresh pigment or fresh filler as a powder, slurry containing fresh pigment and / or fresh filler. If the concentration is too low, the recycling process becomes uneconomical.
- the ratio of fillers and / or pigments to fibers can vary within a wide range.
- the fiber content on the one hand or the filler and / or pigment content on the other hand can vary, for example, from 2 to 98% by weight or 98 to 2% by weight.
- fiber-free residual water sludge can also be used according to the invention in the paper industry.
- the preferred compositions of various residual water or sewage sludge are exemplified here.
- the wastewater from production preferably comprises 0.5 to 5% by weight, in particular 2.5% by weight, of material loss with a special fresh water requirement of 10 to 100 l / kg, in particular 20 l / kg.
- the concentration of the residual water sludge is preferably 0.02 to 5.0, in particular 1.5% by weight.
- a ratio of fiber to filler and / or pigment to 20 to 80% by weight or 80 to 20% by weight, in particular fibers to pigment in a ratio of 40 to 60% by weight of a waste water is particularly preferred from paper production.
- the pigment slurries obtainable with the aid of the present invention can be used particularly advantageously in the paper industry, in particular for producing a coating color for the paper coating or in the paper pulp.
- the use for producing a coating pigment slurry for offset paper is particularly preferred.
- the slurries according to the invention are also suitable for the production of a coating slip for lightweight, coated papers, in particular also at high application speed, and for the production of roll offset papers, in particular for the production of lightweight, coated roll offset papers, the coating of cardboard and special paper, such as labels, wallpaper, silicone base paper, carbonless paper, packaging paper, as well as the admixture for gravure paper.
- the coating pigment slurries obtainable according to the invention can be used in particular in sheetfed offset, in particular for sheetfed offset single coat, sheetfed offset double coat: sheetfed offset pre-coat and sheetfed offset top coat; - in web offset, especially for the LWC web offset single line, web offset double line: web offset primer and web offset topcoat; - in rotogravure, especially for the LWC rotogravure single coat, rotogravure double coat: rotogravure pre-coat and rotogravure top coat; - In the box, especially for the double-line cardboard: cardboard primer and cardboard topcoat as well as flexographic printing and for special papers, especially for labels and flexible packaging.
- the fillers according to the invention and pigments can also be used to advantage in paper for digital printing processes.
- the process offers the possibility of using the pigment slurries produced according to the invention without any loss of quality in the base papers, coatings and, in particular, the final qualities produced therewith.
- Adhesives are known to be non-metallic substances that connect parts to be bonded through surface adhesion (adhesion) and internal strength (cohesion).
- Adhesive is a generic term and includes other common terms for types of adhesive, which are chosen according to physical, chemical or processing aspects, such as glue, paste, dispersion, solvent, reaction, contact adhesive.
- the names of the adhesives often contain additives for identifying raw materials (e.g. starch paste, synthetic resin glue, skin glue), processing conditions (e.g. cold glue, heat seal or hot melt adhesives, assembly glue), intended use (e.g. paper glue, wood glue, metal glue, wallpaper paste, rubber glue Adhesive) and delivery form (for example liquid adhesive, glue solution, glue powder, table glue, glue jelly, putty, adhesive tape, adhesive film).
- Adhesives are mainly based on organic compounds, but inorganic adhesives are also used.
- DIN 16 920 divides adhesive types into physically binding (glues, paste, solvents, dispersion, plastisol and melt adhesives) and chemically setting (for example cyanoacrylate adhesives).
- the chemically setting, one-component or multi-component reaction adhesives can be based on all polymerization reactions: two-component systems made of epoxy resins and acid anhydrides or polyamines react according to polyaddition, cyanoacrylates or methacrylates according to polymerization and systems based on aminoplast or phenoplast based on polycondensation. Mechanisms.
- the fillers or pigments according to the invention are also suitable for the production of paints and lacquers.
- the fillers or pigments are particularly preferably used for the production of emulsion paints and dispersion dyes.
- the latter means a group of synthetic dyes which are difficult to dissolve in water (in most cases azo dyes or antrachinone derivatives, also Naphtol-AS dyes), which, together with dispersing agents, grind very finely for dyeing and printing acetate, polyester, polyamide, polyacrylonitrile, PVC and polyurethane fibers are used.
- the dye components which are molecularly dissolved in the dye bath, penetrate into the fiber by diffusion, form a solid solution there and give true dyeings.
- transfer printing in which disperse dyes are thermally transferred from paper to fabrics.
- the particle size distribution plays a special role when using fillers or pigments.
- fillers or pigments which have a particle size distribution of 10 to 99% by weight of particles ⁇ 10 ⁇ m, in particular 10 to 95% by weight of particles ⁇ 1 ⁇ m, in each case based on the Have equivalent diameter.
- fillers or pigments with a particle size distribution of a) 95 to 100% by weight of particles ⁇ 20 ⁇ m and / or b) 50 to 100% by weight of particles ⁇ 2 ⁇ m, in particular 50 to 95% by weight of particles ⁇ 2 ⁇ m and / or c) 27 to 99% by weight of particles ⁇ 1 ⁇ m, in particular 27 to 75% by weight of particles ⁇ 1 ⁇ m and / or d) 0.1 to 55% by weight of particles ⁇ 0.2 ⁇ m, in particular 0.1 to 35% by weight of particles ⁇ 0.2 ⁇ m, in each case based on the equivalent diameter.
- the classic formulation of an interior emulsion paint usually contains around 10% of a polymer dispersion based on styrene acrylate.
- a classic facade paint formulation usually has a share of 18 to 25% of a polymer dispersion.
- the proportion of the total dispersion or the proportion of resin in the final formulation can be reduced with the same strength of the formulation as before, or that the strength can be significantly reduced with the same proportion of resin in the formulations increases.
- a standard formulation is prepared so that 50% of the binder contained in the formulation be replaced. Due to the necessity that a coated calcium carbonate slurry is used as the basis for the experiments, the solids content of the stirum carbonate is then used in the standard recipe and modified in the comparison recipe so that the fillers previously introduced dry into the dispersion are adequately matched by the same amount slurry calculated on solids are used.
- the proportion of resin in the formulation was reduced by 20% by weight compared to the standard formulation.
- the remaining 80% by weight of the resins contained in the recipe were replaced by, in absolute terms, using the remaining 80% by weight in each case half by adding normal standard dispersion and in the other half coated carbonate slurry according to the invention in accordance with the new process. Again, the washability was measured in comparison to the standard.
- the paints produced using the fillers or pigments according to the invention had a significantly improved resistance. adhesives industry
- An adhesive formulation typically contains 35% of a terpolymer dispersion with a resin content of 50% for a typical floor adhesive for bonding textiles or other floors.
- the formulations produced in this way were used by gluing to a predetermined standard carpet on a solid surface and subsequently comparing the force required to delaminate the layers glued to one another.
- the adhesives produced using the fillers and pigments according to the invention had significantly higher delamination forces.
- coating colors are usually used for the surface coating which contain about 10% by weight of a polymer dispersion (solid).
- the standard coating color was based on calcium carbonate with a 10% by weight polymer dispersion (solid).
- the plucking strength of the coating was then compared, and in both cases a base paper with about 14 to 15 g / m 2 was coated with the above-mentioned recipe, on the one hand with the standard and on the other hand with the alternative.
- the pick resistance indicates which brush is better connected to the base paper.
- the pick resistance of the papers using the fillers and pigments according to the invention was significantly improved compared to standard fillers and pigments.
- a particularly preferred application of the present invention relates to the use of residual water sludge, particularly in the paper industry.
- reject water generally has only a low solids content of 1 - 2% by weight.
- the rejects are mostly - as in the present case example - collected without separation in a "residue collection container" at item B.
- the paper mill can take different paths, e.g.
- the rejects are e.g. flocculated, dewatered and brought to maximum solids content (> 55%) by means of a centrifuge (item C) or sedimentation process (item D) and "disposed of" in this form on the landfill.
- High-quality feedstocks such as pigments and binders are lost in the production process.
- the rejects are flocked with the addition of cationic products.
- Pigments and coagulated binders are separated from the water.
- Sedimentation devices (item D) or decanters (item E) can be used for this.
- the centrate of the centrifuge pos. C can also be used; the resulting clear water is used as production water or goes to the sewage treatment plant without polluting it.
- Positions C and D are usually part of the paper mill, position E is part of the present invention.
- the concentrated reject comes from the factory sedimentation funnel into the grinding plant. This consists of the following elements:
- the procedure is as follows: • Concentrated reject is collected in the buffer tank F. If there is no reject, the container is filled with water. • In mixer H, reject and optionally dispersant are introduced and then the CaC0 3 powder from the silo G is dispersed at 75 to 80% by weight solids. • The slurry is temporarily stored in the storage container I and from there • the ball mill K is fed continuously. In the mill, the slurry is ground to the desired fine particle size with the addition of grinding aids.
- This calcium carbonate slurry is temporarily stored in • container L and, after checking particle size, solids, viscosity and pH, the same slurry is then mixed with polymer dispersion in the coating kitchen and the coating color thus created is transported to storage container M in the coating system.
- the containers F and I can also be dispensed with in the method according to the invention.
- the process according to the invention also provides for recycling of the binder, since the grinding of the pigment with the binder is of crucial importance for the quality of the carbonate pigment produced. It is irrelevant whether the binder is in its original form as a finely divided polymer dispersion or in a flocculated, ie coagulated state as a ball cluster, because the binder also has its potential as a coalgulate. During grinding, the mechanical rubbing between the balls of the binder whether as individual particles or agglomerate - rubbed onto the pigment particles and filmed by the high temperature. The filler or pigment particles are thus coated with a film-coated binder.
- a filler or pigment is applied to the paper / cardboard, as in the method according to the invention, which is already coated with binder, there is no migration of this binder.
- the "yield" of the binder is higher; denser strokes, higher pick resistance and better printing gloss with less use of binder are obtained.
- the binder With a homogeneous distribution of the coating pigment, the binder is also uniformly distributed, which leads to a uniform ink absorption and counteracts the mottle. This is through tests and experience with different binders both in the form of stabilized polymer dispersion and in the form of destabilized binders, that is to say binder agglomerates.
- Silos of any size for example from 50 to 1000 m 3
- Dispensing of the filler and / or pigment powder with subsequent transport is ensured by metering devices, optionally to day silo container (s), optionally with cleaning devices.
- PLC programmable logic controllers
- a residual water sludge with a solids content of in particular 0.02 to 50% by weight can be used partially or completely. Accordingly, containers for storing the residual water sludge, dosing devices for the residual water sludge, which determine the amount to be used gravimetrically or volumetrically, may be required.
- containers are required to hold the mixture of fresh pigment or filler as a powder, slurry containing fresh pigment and / or filler and residual water sludge / water, optionally grinding aids and dispersion aids or other aids.
- Dispersing devices (dissolvers) or other agitators are required for dispersion and stability adjustment.
- surface-modified fillers and pigments can be produced continuously in conventional stirred ball mills, for example with a content of 700 to 5000 l or greater. Grinding media, preferably grinding balls, in particular with a diameter of 1 to 4 mm, are used.
- sieves preferably curved sieves
- Laser measuring instruments are used to determine and control the fineness of grinding during the grinding process and the computer-aided control of the agitator ball mill system. If necessary, further metering injection devices are required for further metering of dispersing and grinding aids on the agitator ball mill.
- sieves may be required for the further separation of pollutants with a size of more than 20 ⁇ m.
- the fresh pigment and / or filler material used especially the one used
- Varying proportions of, for example, carbonate, mixed with polymer dispersion are ground to a slurry which has a solids content which can be adjusted, for example, to a usable coating color. If necessary, the solids content can also be set higher if the pigment slurry is longer should be temporarily stored. The fineness of the slurry is determined in particular by the dwell time and / or the energy consumption during production in the stirred ball mill.
- the whiteness of the pigment slurry results, among other things, from the mixing ratio of fresh pigment to water or residual water sludge and in particular the type of fresh pigment used.
- the reject and dispersant were placed in mixer H and dry CaC0 3 (30-quality) was introduced from the silo G until 75% by weight of solids were reached.
- the suspension obtained was pumped into the storage container I, where 1.8% by weight of a commercially available grinding aid (polyacrylate), based on pigment, was added.
- the 2-stage ball mills K were now fed continuously from the storage container I.
- the CaCO 3 30 quality was milled to CaCO 3 60 quality. 85 kW per t had to be used for the grinding.
- the 60-grade slurry thus produced was stored in the intermediate container L until particle size, viscosity, solids content and pH were recorded and then pumped into the reservoir M for the primer pigment of the coating kitchen. Subsequently, this primer also has pigment with about 16 wt .-% (merchandise) a commercially available polymer dispersion (Acronal ®) is mixed, so that to obtain a precoating color.
- the primer paint during the operational test consisted of 60% by weight of standard carbonate of 60 gauge plus 40% by weight of AlphaCarb® 60 gauge, this proportion of 40% by weight consisting of 15% by weight. % Reject and 25% by weight CaCO 3 30 gauge, so that the share of the reject in the primer was about 7% by weight reject.
- a coating speed of 820 m / min. were at the film press in Primer 10 - 11 g / m 2 / side applied. The coating color ran perfectly on the film press and the top coat was applied without streaks.
- test preparation thus coated was compared with standard coated paper.
- Strokes with the pigment according to the invention provided in contrast to strokes with the standard 60 pigment
- Papers produced in the test papers were also found to be of excellent quality in the optical and sensory testing using the method according to the invention.
- an aqueous anionic was used in a ball mill using Calcicell ® 30 Copolymer dispersion based on N-butyl acrylate, acrylonitrile and styrene, free from plasticizers and solvents (Acronal®S360 D).
- This polymer dispersion had a solids content of approximately 50% by weight and a pH of approximately 8.
- the amount of calcium carbonate Calcicell ® 30 in the slurry was 75% by weight.
- SAZ balls with a diameter of 1.6 to 2.5 mm were used as grinding balls.
- the useful content of the mill was 3 I.
- the work output 1.3 kW at a speed of 400 to 1500 U / min.
- the fineness of the materials used was determined using the Cilas laser diffraction method:
- the samples for measuring the grain distribution were taken after 20, 40, 60, 80, 100 and 120 min. During the milling test, the mill was cooled with water.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paper (AREA)
- Paints Or Removers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05742659T ATE462766T1 (de) | 2004-05-12 | 2005-05-10 | Oberflächenmodifizierte anorganische füllstoffe und pigmente |
CA2566335A CA2566335C (en) | 2004-05-12 | 2005-05-10 | Surface-modified inorganic fillers and pigments |
SI200531032T SI1747252T1 (sl) | 2004-05-12 | 2005-05-10 | Površinsko modificirana anorganska polnila in pigmenti |
DE502005009319T DE502005009319D1 (de) | 2004-05-12 | 2005-05-10 | Oberflächenmodifizierte anorganische füllstoffe und pigmente |
CN200580014876.0A CN1973002B (zh) | 2004-05-12 | 2005-05-10 | 表面改性无机填料和颜料 |
AU2005243432A AU2005243432A1 (en) | 2004-05-12 | 2005-05-10 | Surface-modified inorganic fillers and pigments |
DK05742659.5T DK1747252T3 (da) | 2004-05-12 | 2005-05-10 | Overflademodificerede uorganiske fyldstoffer og pigmenter |
BRPI0509786-0A BRPI0509786B1 (pt) | 2004-05-12 | 2005-05-10 | Inorganic fillers and pigments with modified surfaces with designed grain size, process for preparing and employing themselves |
MXPA06012896A MXPA06012896A (es) | 2004-05-12 | 2005-05-10 | Materiales de relleno y pigmentos inorganicos de superficie modificada. |
US11/596,119 US9296900B2 (en) | 2004-05-12 | 2005-05-10 | Surface-modified inorganic fillers and pigments |
EP05742659A EP1747252B1 (de) | 2004-05-12 | 2005-05-10 | Oberflächenmodifizierte anorganische füllstoffe und pigmente |
JP2007512209A JP2007537320A (ja) | 2004-05-12 | 2005-05-10 | 表面改質された無機充填材及び顔料 |
NO20065716A NO20065716L (no) | 2004-05-12 | 2006-12-12 | Overflatemodifiserte uorganiske fyllstoffer og pigmenter. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004023864.2A DE102004023864B4 (de) | 2004-05-12 | 2004-05-12 | Oberflächenmodifizierte anorganische Füllstoffe und Pigmente |
DE102004023864.2 | 2004-05-12 | ||
DE102004025008 | 2004-05-21 | ||
DE102004025008.1 | 2004-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005111153A1 true WO2005111153A1 (de) | 2005-11-24 |
Family
ID=34967549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/052112 WO2005111153A1 (de) | 2004-05-12 | 2005-05-10 | Oberflächenmodifizierte anorganische füllstoffe und pigmente |
Country Status (15)
Country | Link |
---|---|
US (1) | US9296900B2 (de) |
EP (1) | EP1747252B1 (de) |
JP (1) | JP2007537320A (de) |
KR (1) | KR20070007364A (de) |
AT (1) | ATE462766T1 (de) |
AU (1) | AU2005243432A1 (de) |
BR (1) | BRPI0509786B1 (de) |
CA (1) | CA2566335C (de) |
DE (1) | DE502005009319D1 (de) |
DK (1) | DK1747252T3 (de) |
ES (1) | ES2339573T3 (de) |
MX (1) | MXPA06012896A (de) |
NO (1) | NO20065716L (de) |
SI (1) | SI1747252T1 (de) |
WO (1) | WO2005111153A1 (de) |
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EP1990375A1 (de) * | 2007-05-11 | 2008-11-12 | Coatex S.A.S. | Use of a reverse emulsion of an acrylamide polymer with an acrylic monomer as a stabilising agent and foam reducer, in a method for the grinding of mineral materials and binders in an aqueous medium. |
WO2008139292A1 (fr) | 2007-05-11 | 2008-11-20 | Omya Development Ag | Procede de broyage en milieu aqueux de matieres minerales et de liants mettant en oeuvre une emulsion inverse d'un polymere de l'acrylamide avec un monomere acrylique |
WO2010070682A1 (en) * | 2008-12-15 | 2010-06-24 | Imi Fabi S.P.A. | Talc- and/or chlorite-based compositions and use thereof in controlling pollutants in papermaking industry processes |
EP2490983A2 (de) * | 2009-10-21 | 2012-08-29 | 3M Innovative Properties Company | Lösungsmittelfreie funktionalisierungs-, zerkleinerungs- und compoundierungsverfahren mit reaktiven verdünnungsmitteln |
CN102702850A (zh) * | 2012-06-07 | 2012-10-03 | 林庆福 | 水性涂边料及其制备方法 |
CN102702844A (zh) * | 2012-06-07 | 2012-10-03 | 林庆福 | 水性印墨及其制备方法 |
US8382891B2 (en) | 2007-06-22 | 2013-02-26 | Alpha Calcit Fullstoff Gesellschaft Mbh | Preparation of coating dispersions |
US9296900B2 (en) | 2004-05-12 | 2016-03-29 | Alpha Calcit Fullstoff Gesellschaft Mbh | Surface-modified inorganic fillers and pigments |
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WO2014186953A1 (en) | 2013-05-22 | 2014-11-27 | Dow Global Technologies Llc | Paper composition and process for making the same |
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- 2005-05-10 JP JP2007512209A patent/JP2007537320A/ja active Pending
- 2005-05-10 US US11/596,119 patent/US9296900B2/en active Active
- 2005-05-10 BR BRPI0509786-0A patent/BRPI0509786B1/pt active IP Right Grant
- 2005-05-10 AU AU2005243432A patent/AU2005243432A1/en not_active Abandoned
- 2005-05-10 KR KR1020067023846A patent/KR20070007364A/ko not_active Application Discontinuation
- 2005-05-10 CA CA2566335A patent/CA2566335C/en active Active
- 2005-05-10 SI SI200531032T patent/SI1747252T1/sl unknown
- 2005-05-10 ES ES05742659T patent/ES2339573T3/es active Active
- 2005-05-10 AT AT05742659T patent/ATE462766T1/de active
- 2005-05-10 WO PCT/EP2005/052112 patent/WO2005111153A1/de active Application Filing
- 2005-05-10 EP EP05742659A patent/EP1747252B1/de not_active Revoked
- 2005-05-10 MX MXPA06012896A patent/MXPA06012896A/es active IP Right Grant
- 2005-05-10 DE DE502005009319T patent/DE502005009319D1/de active Active
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Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9296900B2 (en) | 2004-05-12 | 2016-03-29 | Alpha Calcit Fullstoff Gesellschaft Mbh | Surface-modified inorganic fillers and pigments |
CN101679769B (zh) * | 2007-05-11 | 2013-09-18 | Omya发展股份公司 | 使用具有丙烯酸类单体的丙烯酰胺聚合物的反相乳液在水性介质中研磨矿物材料及黏结剂的方法 |
WO2008139292A1 (fr) | 2007-05-11 | 2008-11-20 | Omya Development Ag | Procede de broyage en milieu aqueux de matieres minerales et de liants mettant en oeuvre une emulsion inverse d'un polymere de l'acrylamide avec un monomere acrylique |
WO2008139286A1 (fr) * | 2007-05-11 | 2008-11-20 | Coatex S.A.S. | Utilisation d'une emulsion inverse d'un polymere de l'acrylamide avec un monomere acrylique comme agent stabilisant et reducteur de mousse, dans un procede de broyage en milieu aqueux de matieres minerales et de liants |
EP1990375A1 (de) * | 2007-05-11 | 2008-11-12 | Coatex S.A.S. | Use of a reverse emulsion of an acrylamide polymer with an acrylic monomer as a stabilising agent and foam reducer, in a method for the grinding of mineral materials and binders in an aqueous medium. |
EP2160497B1 (de) | 2007-06-22 | 2018-12-05 | Alpha Calcit Füllstoff Gesellschaft mbH | Herstellung von streichfarbendispersionen |
US8926747B2 (en) | 2007-06-22 | 2015-01-06 | Alpha Calcit Fullstoff Gesellschaft Mgh | Preparation of coating dispersions |
US8382891B2 (en) | 2007-06-22 | 2013-02-26 | Alpha Calcit Fullstoff Gesellschaft Mbh | Preparation of coating dispersions |
WO2010070682A1 (en) * | 2008-12-15 | 2010-06-24 | Imi Fabi S.P.A. | Talc- and/or chlorite-based compositions and use thereof in controlling pollutants in papermaking industry processes |
EP2490983A4 (de) * | 2009-10-21 | 2013-05-15 | 3M Innovative Properties Co | Lösungsmittelfreie funktionalisierungs-, zerkleinerungs- und compoundierungsverfahren mit reaktiven verdünnungsmitteln |
EP2490983A2 (de) * | 2009-10-21 | 2012-08-29 | 3M Innovative Properties Company | Lösungsmittelfreie funktionalisierungs-, zerkleinerungs- und compoundierungsverfahren mit reaktiven verdünnungsmitteln |
US9365723B2 (en) | 2011-04-01 | 2016-06-14 | Omya International Ag | Process for preparing self-binding pigment particles |
US10723886B2 (en) | 2011-08-31 | 2020-07-28 | Omya International Ag | Self-binding pigment hybrid |
CN102702844A (zh) * | 2012-06-07 | 2012-10-03 | 林庆福 | 水性印墨及其制备方法 |
CN102702850A (zh) * | 2012-06-07 | 2012-10-03 | 林庆福 | 水性涂边料及其制备方法 |
CN102702844B (zh) * | 2012-06-07 | 2016-04-27 | 林庆福 | 水性印墨及其制备方法 |
EP2949477B1 (de) | 2014-05-26 | 2016-11-30 | Omya International AG | Calciumcarbonat für rotationstiefdruckmedium |
US10647143B2 (en) | 2014-05-26 | 2020-05-12 | Omya International Ag | Calcium carbonate for rotogravure printing medium |
Also Published As
Publication number | Publication date |
---|---|
DK1747252T3 (da) | 2010-07-19 |
ES2339573T3 (es) | 2010-05-21 |
AU2005243432A1 (en) | 2005-11-24 |
BRPI0509786A (pt) | 2007-10-23 |
MXPA06012896A (es) | 2007-02-15 |
US20070240619A1 (en) | 2007-10-18 |
CA2566335A1 (en) | 2005-11-24 |
BRPI0509786B1 (pt) | 2017-07-04 |
ATE462766T1 (de) | 2010-04-15 |
EP1747252B1 (de) | 2010-03-31 |
CA2566335C (en) | 2014-10-14 |
US9296900B2 (en) | 2016-03-29 |
DE502005009319D1 (de) | 2010-05-12 |
SI1747252T1 (sl) | 2010-08-31 |
EP1747252A1 (de) | 2007-01-31 |
JP2007537320A (ja) | 2007-12-20 |
KR20070007364A (ko) | 2007-01-15 |
NO20065716L (no) | 2007-02-02 |
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