Stone coloring mechanism and processing method

      Is the stone material coloring the stone surface natural cracks, pores, tiny holes to modulation of osmotic priming agent to the stone surface, stone material coloring treatment according to the effect of the use of stone is divided into grace, polish, change color three kinds. Hyperchromic is an enhancement to the original color of the stone to become more strong and beautiful: Polish that do not change to the original color of stone, just to make its surface becomes more moist, bright and beautiful: color change is inferior to that of the stone color change, into the new varieties of the market welcome stone color.

      Stone mineral color can be roughly divided into three types, namely self color, false color, color. Minerals from the color is decided by its internal structure and the structure of the pigment ion of: mineral false color is refers to the surface of the oxide film, the internal cleavage and cranny films and inclusions caused by the interference of light waves and color: mineral color it is refers to the mineral containing with color impurities or elements of mechanical mixing dyed the color. Stone coloring is based on these mechanisms to carry out. According to the mineral of different color mechanism, stone color can be divided into pigment coloring method of physics, physical - chemical coloring method, chemical color reaction method and an increase in colourful polishing method.

First,Pigment physical coloring method

       Pigment physical coloring method is based on the principle of the color of the mineral, it is the color of impurities or elements to penetrate into the stone inside the stone and make the stone coloring, the method is completely physical infiltration process. The disadvantage is that the pigment is easy to aggregate in the stone of the cracks, and sometimes make the stone material local texture.

      According to the different construction temperature, can be divided into room temperature coloring and high temperature coloring, room temperature coloring on the mechanical properties of the stone has no effect, high temperature coloring often causes the stone mechanical strength of different degrees of decline.

       According to the materials used, it can be divided into organic material coloring, inorganic material coloring and organic inorganic mixed material coloring. The advantage of organic material coloring is rich in color, bright color, but some materials are not ideal weather resistance. Inorganic material has the advantage of strong weather resistance, the disadvantage is that the color is not rich enough.

Two, physical - chemical coloring method

     Physical - chemical coloring method is also according to the mineral color principle, namely physical infiltration, chemical fixation, firstly, the physical penetration of color impurities or mechanical elements to infiltrate stone internal, through chemical bond together to enable the coloring matter in the interior of the stone fixed, so as to improve the stone color fastness.

Three, chemical reaction coloring method

        The chemical reaction coloring method is based on the color of the mineral and the principle of its color, generally the majority of inorganic materials, according to the different reaction temperature, can be divided into room temperature coloring and high temperature coloring. According to whether the coloring material is introduced into the stone material, it can be divided into the introduction of pigment coloring method and the change of stone structure coloring method. Introduced the pigment coloring method is the first internal coloring material are introduced into the stone, and a coloring material into with color impurities or elements are deposited in the stone by means of chemical reaction to achieve the coloring purposes (such as metal ion salt coloring method); change the stone structure coloring method does not need to stone with the introduction of color impurities or elements, such as coloring matter, but mainly through to the stone introduced colored catalysts (such as rush rust colored method) or change the stone in the external environment (such as laser colouring method), the substance of stone of the internal structure or composition and valence state of elements change, coloring so as to achieve the purpose.

       Chemical coloring method because the chemical methods to change the internal structure of the stone, or is introduced and the structure of the stone of the same chemical elements, by this method on the stone color under natural state is an irreversible process, it is generally used in the normal situation can achieve the natural color of the stone color fastness standards.

Four, brightening polishing method

       Brightening polishing method is carried out in accordance with the mineral false color principle, brightening polishing agent general is colorless and transparent or partial gray material (such as stone wet color protection agent brightening increase colourful door agent, polishing toner), infiltration stone can cause changes in the optical properties of stone, increase the color saturation of the stone, in order to change the color stone.

Stone coloring construction method and matters needing attention

       Various stains and coloring method is different, the specific construction process also each are not identical, the details of which can be refer to the instructions on the use of all kinds of pigments. Construction should pay attention to the following matters:

    1. operation should wear protective equipment, avoid direct contact with skin.

    2 .colorants before use should be fully shake.

    3. do not use other liquid dilution colorants, otherwise may affect the coloring effect of colorant or colorant caused by failure.

    4. The area before construction, there must be a local pilot in the shelter, in order to confirm the effect.

    5. don't work in the wet and wind environment, otherwise it will affect the coloring effect.

    6. if you want to color plate, it is best to cut into the specification board after coloring treatment.

    7. Because of the vastly different colors of stone, existing colorant impossible to adapt to each kind of stone material, if does not match the colorant and stone colors, with reference to the stone color, with a colorant basic color and coloring thinner root according to the three primary colors principle field test deployment (specific color method will be in later chapters for further introduction).

    8. the stone surface uneven color stone, when necessary, available in a variety of colors of the colorant superposition step by step by coloring process to achieve the effect of stone surface colors coexist.

    9 .if there is not penetrate the interior of the stone in the stone surface dry stains, available water for cleaning steel wool.

   10. stone colored, if the stone surface protection treatment, the use of better results.

   11. if the coloring pollution of other objects, must be cleaned with special cleaning agent.

   12.  store in a cool, ventilated place, away from children.

         Stone coloring can make full use of inventory products and unqualified products, product waste! Surface shallow 1-3mm stain can be turned into products that customers need. The use of natural stone, artificial coloring, can make stone products more rich, avoid because of stone waste due to reasons of chromatic difference, thus greatly the reduces the stone production cost to improve the profitability of stone, to play maximum economic effect and social effect, stone coloring can make stone colors bright, color highlight, without any negative effect on, can make the color of the stone surface remain unchanged for a long time.