TH8692B - Improved fill material for alkaline paper and how to use it to make sketch paper. - Google Patents

Abstract

It has disclosed hydrophobic filler material for base paper. The filler material consists of finely sized inorganic materials. Most of the particles have a skin which has been improved. Mainly with the C12-C22 Phathic Acid salts soluble in water. And metal ions in The least amount results in the formation of a complex with the existing phosphate acid salts, reveals the lye paper. Speckled paper contains Hydrophobic filler material consisting of finely sized inorganic materials. Most of the particles have been toned on the skin. Almost all with the C12-C22 Phathic Acid salts soluble in water Has been disclosed to Method for improvement Improving the condition of the alkaline paper Consisting of Prepare the filler material And add that filler material to the cellulose fibers Prepare the filler material by Selection of fine inorganic materials And toning almost all of the particles Mainly with the C12-C22 phosphate acid salt, it forms a hydrophobic coating on it.

Claims (5)

1. The hydrophobic filler material for paper consists of a. Fine particles of inorganic material b. A sufficient amount of water-soluble C12-C22 phosphate acid salt to The coating of almost all surfaces of, at least most of the particles and c. The least amount of metal ions, results in the formation of chemical compounds 2. Hydrophobic filler material for paper according to claim 1 where inorganic material is TiO2 clay or calcium carbonate. 3. Hydrophobic filler material. Drophobic for paper according to claim 2, where inorganic material is calcium carbonate obtained by flocculation 4. filler material according to claim 1, where the phosphate acid salt is derived from Fatty C16-C19 5. Filler material according to claim 1, where the cation of the phosphate acid salt is an alkali metal 6. Filler material according to claim 1 at the phosphate acid salt. Is sodium stearate. 7. Filler material according to claim 1 where metal ions are aluminum, barium, lithium, magnesium and zinc. 8. Filler material according to claim 7 where metal ions are aluminum. 9. Paper base consists of Hydrophobic filler material consists of (a) fine particles of inorganic material, (b) salt of the C12-C22 phosphate acid, which is at least the entire surface of the coating. Most particles and (c) paper improvement agent of aldynyl succinic conhydride or alkyldetene dimmer 1 0. alkali paper according to claim 9 Where inorganic materials are clay TiO2 or calcium carbonate 1 1. Paper base according to claim 10 where inorganic material is calcium carbonate obtained by precipitation 1 2 The lye paper according to claim 9, where the phosphate acid salts are derived from the phosphate acid C16-C19 1 3. The lye paper according to claim 12, where the phosphate acid salt is sodium stearate 1 4. . Alkali paper According to claim 9, that alkali paper also contains metal ions in The least amount results in the formation of a complex compound with all the fat salts. 1 5. Paper base based on claim 14 where metal ions are aluminum, barium, lithium, magnesium or zinc. Rights 15 where metal ions are aluminum and the substance for making The improvement of the paper condition is aldynylsychic anhydride or alkyldetene dimmer, whose alkyl group consists of 1 to 20 carbon atoms. Claim 9 with fill material equal from approximately 5 to approximately 40% by weight of paper 1 8. Methods for improvement. The improvement of the quality of the alkaline paper consists of a. Prepare the hydrophobic filler material by a process consisting of a procedure of (1) selecting fine particle size inorganic materials and (2) coating. Almost all of the vast majority of particles of inorganic material by giving the particles to react with the phosphate acid salts C12-C22 long enough to form the phosphorous acid coating. And b. Add the filler material to the alkaline slurry or cellulose-based impregnation. And substances for improving the condition of paper of Alkenylsuccinic Anhydride or Alkyldetene Dimmer during the process for making alkaline paper. The right 18 steps to prepare the filler material also consist of a step. Next, in the preparation of the fine particle slurry of TiO2 or calcium carbonate inorganic clay material before the surface treatment of the particle 2 0. Rights 19 at inorganic materials Is calcium carbonate obtained by precipitation 2. 1. Method according to claim 19 where the slurry contains approximately 5 to approximately 75% solids by weight in the aqueous phase 2 2. method According to claim 21, where the slurry contains approximately 10 to approximately 30% solids by weight in the aqueous phase 2 3. The method of claim 19 where the slurry has a pH of approximately 7 to approximately 12 2 4. Claim method 23 where the slurry has a pH of approximately 7 to approximately 10 2 5. Claim Method 19 where the filler material preparation step also consists of a filler material preparation stage. The next step was to prepare the emulsion of the Fatty acid salt C12-C22 for reaction with particle 2. 6. Method according to claim 25 where the emulsion had the weight of the fatic acid salt as it was dry. Equals approximately 0.1 to approx. 5% by wt when dry. Inorganic materials in slurry 2 7. Method to claim 26 where the weight of the fatic acid salt while dry is from approximately 0.5 to approximately 1.5% by weight compared to the weight of the anionic material. Bacteria in slurry 2 8. Method according to claim 19, Fatty acid salts. In the form of powder 2 9. Claim method 18 where the phosphate acid salt is sodium stearate 3 0. Clause 19 at a slurry temperature of approximately 20 to approx. At 60 nc. 3 1. Method according to claim 25 at the temperature of the emulsion is from approximately 65 to approximately 80 ํ 3. 2. The method under claim 18 also consists of adding metal ions to the The least amount of coated inorganic material results in the formation of complexes. With phate 3 acid salts 3. Method according to claim 32 where metal ions are aluminum, barium, lithium, magnesium or zinc 3. 4. Method according to claim 34 that the metal ion is aluminum 3. 5. Claim 35 method for adding aluminum ions equal from approximately 0.01 to approximately 3.0% by weight relative to dry weight of the pre-coated filler material.