CN1055454C

CN1055454C - Granite coloring technique

Info

Publication number: CN1055454C
Application number: CN94113040A
Authority: CN
Inventors: 余进
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-23
Filing date: 1994-12-23
Publication date: 2000-08-16
Anticipated expiration: 2014-12-23
Also published as: CN1117035A

Abstract

The present invention provides the new technology for coloring moorstone in the building material industry, which comprises the following steps: preparing ferrous iron salt, ferric iron salt, aluminum salt, a surfactant, a solvent, etc. into moorstone coloring liquid; immersing the moorstone into the coloring liquid after degassing; taking out the moorstone and drying; heating to 300 to 400 DEG C; cooling to room temperature; finally, processing the moorstone surface by paraffin. The gray moorstone or the light-colored moorstone can be colored into red, brown, yellow, maroon and russet. The present invention has the advantages of simple technology, easily acquired raw materials and low production cost, and is suitable for the industrial production. The colored moorstone has good quality beautiful colors and fastness.

Description

Granite coloring technique

The present invention is a kind of granite coloring technique, be with granite after physico-chemical process is handled, make granite into different color, with stone material as architectural decoration.The present invention provides a kind of granite painted new technology for building materials industry.

At present traditional granite coloring technique normally with inorganic or organic dye with physical method as modes such as soaking, smear, make staining fluid enter stone material and painted, this class methods poor permeability, dye layer is shallow, even rest on stone surface, thereby weathering resistance is poor, fugitive color.

Existing granite coloring technique mainly contains following several:

Prior art I: the high cobalt acid of nitrous sodium-amaranth method (is seen " chemical staining of natural ornamental stone ", Shandong Building Material College's journal, 1988.3, P86), after the HF vapour cure, place the high cobalt acid of nitrous sodium soup to dye granite building material, spill cover plate material surface with amaranth liquid at last, potassium felspar sand is dyed yellow as a result, and the Dou feldspar is by purple.The shortcoming of this method is: 1. HF is colourless toxic gas, operational difficulty in the processing, and security is little, and human body is had certain toxicity; 2. granite is the complex construction of being made up of multiple composition (mainly being quartz, feldspar, mica etc.), and its profile and feature are extremely inconsistent, and this method is only dyed yellow, purple with wherein partly forming, can be caused dyeing inequality, difficult quality guarantee.

Prior art II: granite is after the degassing is handled, immerse in the metal chloride solutions, taking-up is heated to 250 ℃, be cooled to room temperature,, get red granite with in the soda-lime solution and surface, its coloring liquid prescription is that metal chlorides such as Fe, Al, Cr (are seen " Coloring of Granile Stone Materials ", JP62,252,384).The granite color that this method obtains is single, only is red.

Prior art III: granite immerses in the salts solution of metal and strong acid reaction generation after the degassing is handled, and takes out and is heated to 250-300 ℃, is cooled to room temperature, uses the silicone oil treat surface at last.The ferric salt solution that generates with iron and strong acid reaction in this method to the dull coloring of the painted processing of stone material, only be red, and the coloring liquid quality is wayward.(see " Process for Coloring Granite ", US 4,695,487).

Task of the present invention is in order to overcome the weak point in the prior art, utilize a large amount of existence of occurring in nature and cheap canescence and light granite, adopted coloring liquid unlike the prior art, obtained multicolour, competent high-quality granite attractive in appearance with new coloring process technology.

Distinguishing feature of the present invention is:

(1), good weatherability, have good weathering resistance (fast light, heat-resisting, water-fast) with the painted granite of this law, prolonged nondiscoloration, fade.

(2), the coloring liquid characteristics: the coloring liquid prescription is to be coloring material with divalent iron salt, trivalent iron salt, aluminium salt, and based on divalent iron salt, be equipped with an amount of permeate agent, coloring liquid perviousness strong (with prior art II, III relatively).

(3), uniform coloring, color is attractive in appearance, adopts with a kind of coloring liquid, only changes the content and the process control condition of its main component, just can obtain different tones such as redness, brown, yellow, maroon, tawny, and uniform coloring.

(4), process characteristic: stone material immerses coloring liquid of the present invention after the degassing is handled, taking out the post-heating temperature is 300-400 ℃, handles stone surface (different with prior art II, III) with paraffin wax at last.

(5), security is good, the coloring liquid non-corrosiveness, the entire treatment process does not have influence to human body.Granite coloring technique of the present invention does not see that domestic and foreign literature has identical report at present.Granite coloring technique of the present invention mainly comprises coloring liquid and coloring process.

1. coloring liquid:

Prescription: be coloring material 1. with divalent iron salt, trivalent iron salt and aluminium salt, and based on divalent iron salt.Divalent iron salt can be Iron nitrate, ferrous sulfate, ferrous ammonium sulphate, iron protochloride etc.; Trivalent iron salt can be iron nitrate, iron(ic) chloride etc.; Aluminium salt can be aluminum nitrate, aluminum chloride etc.

2. solvent: water or organic solvent, organic solvent is advisable with alcohols.

3. tensio-active agent: can be ionic or nonionic surface active agent, fluorine surfactant, polymeric surface active agent etc. be advisable with alkylbenzene sulfonate, polyoxyethylated alkyl alcohol.

Ferrous content is 0.5-6.5% in the coloring liquid, and ferric content is 0.01-0.20%, and trivalent aluminium content is 0.20-2.0%, and surfactant content is 0.1-0.5%.

The preparation: with divalent iron salt, trivalent iron salt, aluminium salt is water-soluble or organic solvent in, other adds an amount of tensio-active agent, constitutes the strong granite coloring liquid of perviousness thus.

2. coloring process:

Granite building material is packed into after the degassing is handled in the encloses container, in container, inject above-mentioned coloring liquid.Taking-up stone material washing drying, stone material is heated to 300-400 ℃ again, constant temperature 1-3 hour, naturally cool to room temperature, handle stone surface with paraffin wax at last and promptly get goods.Can change factor such as ferrous iron and ferric content and process control condition in the coloring liquid as required, tone is regulated, make canescence or light granite colors such as redness, brown, yellow, maroon, tawny, pigment can reach more than the 5mm deeply.

3, performance test: carry out water tolerance and mechanical strength test.

Adopt granite coloring technique of the present invention that the natural granite of dull coloring is carried out painted processing, its technology is simple, and raw material is easy to get, and production cost is low, and the granite color after painted is attractive in appearance, superior in quality, of many uses.The present invention is applicable to large-scale industrial production.

Embodiment one:

Iron nitrate 5 grams, Iron nitrate 18 grams, ferrous sulfate 76 grams, aluminum chloride 67 grams.Alkylbenzene sulfonate 2 grams are dissolved in the 1000ml distilled water, are mixed with the granite coloring liquid.

The Mount Emei is produced canescence granite 10 * 5 * 2cm ³After sample electricity consumption hot blast is removed surface-moisture, pack in the airtight painted groove, after handling, the degassing injects coloring liquid with vacuum pump immediately, soaked 1 hour, and took out sample and wash with water, be heated to 300-400 ℃ in the cabinet-type electric furnace of packing in dry, constant temperature 1-3 hour, naturally cool to room temperature, handle stone surface with paraffin wax at last, promptly get surperficial taking on a red color to the color of brown.

By the section of painted granite sample as seen, pigment has been penetrated into the degree of depth of the following 10mm in surface.

Embodiment two:

Iron(ic) chloride 3 grams, Iron nitrate 27 grams, iron protochloride 26 grams, aluminum nitrate 20 grams, polyoxyethylated alkyl alcohol 2 grams are dissolved in the 1000ml ethanol, are mixed with the granite coloring liquid.

Canescence granite 10 * 5 * 2cm is produced in the Yaan ³Sample soaked 1 hour in coloring liquid after dehydration, the degassing are handled, and washing is dry then, is heated to 300-400 ℃, and constant temperature 1-3 hour, be cooled to room temperature, use the paraffin wax treat surface at last, promptly get the surperficial color that is yellow to brown.

Water resistance test: place the deionized water immersion after 3 months painted granite, measure iron-holder in its water,, painted granite water resistance excellence is described less than 0.1PPm with WFX-1D type atomic absorption spectrophotometer (Beijing second optical instrument factory's system).

Mechanical strength test: carry out resistance to compression, folding strength test, the painted granite intensity of result is consistent with former stone material.

Claims

1. one kind with canescence or light natural granite method of colouring, use divalent iron salt, trivalent iron salt, aluminium salt, tensio-active agent, solvent is mixed with coloring liquid, ferrous iron content is 0.5-6.5% in the coloring liquid, ferric iron content is 0.01-0.20%, trivalent aluminium content is 0.20-2.0%, surfactant content is 0.1-0.5%, solvent is water or alcoholic solvent, allow coloring liquid infiltrate through through dehydration, granite building material inside after the degassing, allow the granite building material that soaks into coloring liquid under 300-400 ℃ temperature, keep 1-3 hour then, be cooled to room temperature, make it to form the granite of different tones.

2. granite colorize method according to claim 1 is characterized in that divalent iron salt can be Iron nitrate, ferrous sulfate, ferrous ammonium sulphate, iron protochloride in the coloring liquid; Trivalent iron salt can be iron nitrate, iron(ic) chloride; Aluminium salt can be aluminum nitrate, aluminum chloride.

3. granite colorize method according to claim 1 is characterized in that painted granite building material uses the paraffin wax treat surface at last.