Porcelain - it is a separate subspecies of ceramics. The material is produced by firing at high temperatures, different varieties of clay (preferably kaolin) supplemented with feldspar, quartz and other impurities (depending on the recipe). The finished product is a white solid obtained, is water, produces a special ringing when tapped. Nonporous material. A thin layer of porcelain has a light transparency. Production of the material takes place in several stages, ie, repeated firings. Approximately 25% of the resulting china is eliminated as marriage, which is explained by the complex manufacturing technology. The birthplace of the material was the Ancient China. The first Chinese porcelain had a light blue and green. Milky white, it became much later.
Later they began to appear new types of material: glazed (alternative to "biscuit" with no icing), bone, soft (European idea without kaolin). The Chinese readily exported china to other countries, but the secret of the production of the material is kept strictly in order to maintain a monopoly. In China there was even a separate "closed" while the city of Jingdezhen. It worked the farm potters only on the production of porcelain. To keep secrets from spies, the city virtually closed for the night, leaving the streets patrols the military. Although it was a porcelain center of Jingdezhen, and other provinces have been involved in the process of obtaining the material. For example, in Jiangxi extracted "porcelain stone", consisting of a mixture of quartz and mica. In the same province was first discovered by a special clay - kaolin. The one that gave the porcelain whiteness. Finished products coated with glaze and painted. First there was the fashion for blue colors and then the green and pink. Secrets of Chinese porcelain so carefully preserved that many of them have been irretrievably lost. Skill of potters China was so high that many of their products, which have come down to our days, striking beauty, but continue to keep the secret of manufacturing technology. Even modern techniques do not allow us to find the exact "recipe". For those who are engaged in modeling at home and can not burn the workpiece special furnaces at very high temperatures, was invented by a special material, called cold porcelain. Consider a series of master classes for its manufacture in the home and subsequent application options.
Content
- Cold porcelain - that is: characteristics and properties of the material
-
Separate production material
- A classic recipe
- The original recipe
- Recipe using cornstarch
- Production of a microwave oven
- Recipe with formaldehyde
- cool way to
- Recipe without glue
-
Rules and features of working with the material
- The necessary tools for the job
- How cold porcelain paint
-
What can be done
- flowers
- Figurines / toy
- Application for decoration of porcelain
- Bijouterie
- How to dry the finished product
- conclusion
Cold porcelain - that is: characteristics and properties of the material
Members sometimes confused cold porcelain with polymeric clay. Materials are actually completely different. The only thing they have in common is the ability to solidify (clay during firing, and porcelain when contact with air) and ductility during molding. The birthplace of the "cold" porcelain is considered Argentina. Two centuries ago, here for the first time invented a special composition for the art of modeling. The original recipe used as ingredients butter, corn starch, glycerol and glue.
The modern structure of the finished cold porcelain is very different from the original. The material is completely safe and suitable even for contact with the children's hands. There are mentions of another inventor cold porcelain, now about our compatriot. He created the original material about the same time as the Argentine master, but innovators have acted independently. Powered by the Imperial porcelain factory one Ulyanovich Peter Ivanov made the flowers, the work is striking subtlety and grace. For the products he used a special material, which is also called cold porcelain. Many of his works have survived to the present day, but not so on the basics of manufacturing technology secret that was lost immediately after the death of the master. Not so long ago tried to recreate the recipe using modern colors composition analysis techniques Ivanov. These attempts have even been successful, but a wider audience and the technology has not been announced. Many people have a question, that the total mass of this is for sculpting the present Chinese porcelain?
Visual material is incredibly similar to the "original". To distinguish the product from china, solidifying in the air, from the genuine may only professional with a practiced eye. Material is used for molding of small size products (mainly realistic colors). Qualitative cold porcelain is not afraid of a short contact with water, but some compositions can be softened if the product are put in water for more than 30 minutes. In the cold it becomes very fragile and brittle, and therefore requires careful handling. Keep the material need only in a sealed container or bag tied tightly so as not to harden prematurely. During operation, the cold porcelain easily take any form, it is possible to unroll and apply stack subtle patterns on the surface (e.g., veins of a leaf). The material is quite durable enough and not covered with cracks. Has a margin of flexibility and well-sheeted lists in hardened form can even be a little twist.
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As with any other material to dry out due to the loss of moisture, cold porcelain shrinks. This must be considered when working to ready the flowers do not get too small.
Separate production material
Cold porcelain is available in any store where there is a wide range of materials for creativity. If for some reason the master decides to save, you can make this stuff at home. It's really not so difficult as it might seem at first glance. Consider more than five popular ways among which necessarily will be suitable for you.
A classic recipe
A classic recipe in almost all matches to that used for the first time the Argentine master sculpting. To work required:
- 200 g of corn starch.
- 200 g of PVA glue.
- 2 tbsp. spoon of glycerin.
- 1 tbsp. baby cream spoon (instead of butter)
The container (not aluminum) is poured glue and add the liquid to the baby cream spoon. Pan put on a slow fire. Now you need to add the glycerin and starch. Parallel to the heated mass should be thoroughly knead a wooden spatula. Preparation for a "cold porcelain" dough is ready when it is closer to the consistency of cottage cheese. Once it thickens, remove the pan from the heat and remove from it the contents. hot lump of dough is placed on a wooden board, generously greased with the same cream. He is given a slightly cool and start kneading. The process is not different from the conventional preparation of the dough for cakes or flour dumplings. Weight should be homogeneous and viscous. Homemade cold porcelain ready.
The original recipe
This original recipe provides a perfect white dough, through the use of lemon juice and sodium benzoate. To work you need to take:
- 500 g of adhesive.
- 250 g of rice or wheat starch.
- 1 tbsp. Spoon sodium benzoate.
- 1 tbsp. tablespoon lemon juice.
- 1 tbsp. spoon stearin.
- 2 tbsp. spoon of glycerin.
- 2 tbsp. spoons petrolatum liquid consistency.
- 1 tbsp. Spoon special emulsion bleaching dough.
Cold porcelain is prepared in a pan with high sides. First, mixed glue and starch. Then add in the mass remaining ingredients and put on a slow fire. First, dough is watery, and as cooking starts to thicken gradually. The main thing is not to give him a "burn on", stirring a timely manner. Then the mass will resemble cottage cheese, and eventually becomes elastic, like a child's clay for sculpting. The main condition "ready" cold porcelain - free detachment from the walls of the pan.
Recipe using cornstarch
Corn starch is used in almost every formulation. This same ingredient is present in the original part of the first Argentine cold porcelain. Indispensable precisely corn starch can not be called. Instead, it can take a potato, wheat or rice, but it should take into account the particular paste, which he will make. The first embodiment, obtained from potato tubers, in contact with liquid will almost transparent mass with increased viscosity. Pastes of corn and wheat starch largely similar. They have milky. Compared with potato starch, have a lower viscosity. The powder of rice like "vybelivaet" a lot of chalk. Cornstarch is considered ideal for cold porcelain because of the special properties of the paste, which give the product the desired firmness, but do not make them too hard or, on the contrary, pliable. For this reason, almost every recipe (with rare exceptions) there is this ingredient.
Production of a microwave oven
For the preparation of cold porcelain in a microwave will need:
- 200 g of adhesive.
- 1 tbsp. spoon of glycerin.
- 1 h. Spoon citric acid.
- 1 tbsp. Spoon baby oil or body milk.
- 200 g of corn or rice starch.
All ingredients except the starch thoroughly kneaded in a container made of transparent glass. After that, the mass sent to the microwave oven. Warm-up time it will have to be determined individually by experience, since the microwave power can be different. The main sign of "readiness" of the batter - active bubbles, which create a "cap", quickly creeping up in the milk. After that, the capacity of an urgent need to withdraw. Not allowing the dough to cool, poured slowly starch and kneaded therein. First, a spoon, as sealing masses are beginning to work with his hands. When the dough becomes elastic and dense, it is almost ready, it remains only to give him a little time to "rest."
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Recipe with formaldehyde
For this recipe uses no formaldehyde in pure form, and its solution called formalin, which is freely available at pharmacies. This composition is notorious as one of the best embalming solutions. It is toxic, so you can not avoid contact with mucous membranes and exposed skin. You can work only with gloves. You can not breathe fumes of formalin. Keep a means of children. The following example will also be present formaldehyde solution, so there should comply with the same precautions. The following is a recipe for producing large pieces of dough. If weight for sculpting need at least then we can take fewer ingredients, but in compliance with the above proportions. So, for the work required:
- 600 g of corn starch.
- 600 g of vinyl-based adhesive.
- 150 g of cold water.
- 1 tbsp. baby cream spoon.
- 1 tbsp. tablespoon of vegetable oil.
- 1 tbsp. Spoon stearic acid, which will protect the final product from cracking.
- 1 tbsp. spoon formalin.
If desired, cold porcelain composition can be added food coloring or a mixture of 1-2 tbsp. spoons rice starch and 1 hour. spoons of sodium benzoate, if you need a lot of bleach. The ingredients were mixed:
- First in glue add starch and cream, butter.
- Then the mass is mixed in the water, stearic acid, and formalin.
The dough should get tight but elastic.
cool way to
For the preparation of cold porcelain prescription without cooking need:
- 200 g of rice starch.
- 200 g of dry chalk.
- 400 g of vinyl-based adhesive.
- 6 hours. spoons petrolatum liquid consistency.
- 6 drops of formalin.
First necessary to mix starch and chalk. The powder is then poured glue and add to it petrolatum. The dough is carefully kneaded, followed by the addition of formalin. The mass is kneaded again to the last ingredient is evenly distributed. If the dough is ready to get too '' cool '' to him, you can add a little cold water. If the mass is, on the contrary, too pliable and keeps bad form, to which was added a little starch or chalk. In the process of mixing the ingredients, you can pour the food coloring, if you want to get a dough of a certain color.
Recipe without glue
It is possible to manufacture cold porcelain and without the use of glue. The concise list of ingredients for a mastic includes:
- 100 cornstarch.
- 100 g of soda.
- 100 g of cold water.
All ingredients are mixed in an enamel pot or pan with high sides. Capacity is put on a small fire. When the mass starts to bubble, stir it slightly, bonding small lumps into one large. After evaporation of water and thickening test container is removed from the fire. Carefully, the special tool (preferably a large spoon), someone is removed from the pan and put on a wooden board to cool. You can not take mastic hands, as it is hot. When the test the temperature drops, it is necessary to carefully knead to the consistency of soft clay. Working with weight better after a couple of hours it "rest" and not immediately after cooling.
Rules and features of working with the material
When working with cold porcelain should follow some rules:
- Do not place material in an open container or bag. He quickly hardens when exposed to air. Soften it back is impossible.
- Different shades of porcelain solidifies even faster than the normal white. If you decide to cook a lot of their own hands, it is better not to stock it for future use, and immediately make the amount that is necessary for one product right now.
- When working with acids and formalin, work in rubber gloves.
Do not leave children alone with cold porcelain. The material can remind the child the usual tests, which is why but he wants to try a piece of the taste.
The necessary tools for the job
To work with cold porcelain requires the same tools as for a molding of a polymeric clay, plasticine or mastic. The minimal set of tools includes:
- Special board or mat, that will save the table surface from contact with '' test ''.
- A set of chisels and stacks.
- Stencils, shapes, catheters.
- Additional decor.
For staining use a brush with bristles of varying degrees "," fluffy "." Some elements of the crafts have fastened together with glue. This will require the bristles (brush high rigidity).
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How cold porcelain paint
Cold porcelain can be painted in two ways:
- Add the dye at the stage of kneading. Then prepare the masses acquire a uniform hue.
- Paint product after curing porcelain. Option is suitable for those craft to be painted in different colors, with contrasting borders and smooth transitions, where the shades are mixed.
During the manufacture of cold porcelain added thereto tempera or dry food dyes. Once cured, the product is also used tempera paints, acrylic, gouache, and even watercolor, pastel. As you know, the last kind of dye similar to chalk and showered with the product. The composition was fixed, crafts about 5 minutes hold over steam, which slightly softens the surface of the cold porcelain "" soaks up "the" paint. You can fix the color using lacquer.
What can be done
Of cold porcelain made barrettes, jewelry, three-dimensional picture (mural), decorations for clothes, figurines, small sculpture, animal figurines, doll face and hands / feet, vases, bowls, boxes, miniature houses and toys, decorative utensils. This material is perfectly suitable for creating kitchen utensils in the doll house, or to decorate the table "mad tea party" in the tradition of Lewis Carroll. a list can be continued for a long time. Consider a few examples that clearly demonstrate the possibility of cold porcelain.
flowers
Porcelain China has given us, and ceramic othe - Japan. Both countries have made an enormous contribution to the development of "fine art." The main objective of the master in creating colors - they are as realistic as possible. Cold porcelain is ideal for creating delicate buds and petals finest. Besides the basic material required for floral wire, which performs a role to play frame, and a special glue Latex for bonding individual parts of the composition.
Figurines / toy
Of cold porcelain produced magnificent miniature toys. Such figures can decorate the pets collection of ceramics lovers, shelves of books and photographs, the culinary delights of the hostess. For example, the material can be made the bride and groom for the wedding cake or the child's favorite cartoon characters for the birthday celebration. Yet another application of the material - the face, arms and legs are large rag dolls. They will help to convey subtle emotions in facial features or faces, but it does not give extra weight of the composition. Fix the "mask" of cold porcelain paste on the basis of stuffed heads. Hands and feet pushed onto the body frame wire.
Application for decoration of porcelain
Cold porcelain can act not only as a base material for the product, but also to decorate any part of it. Small flowers, butterflies, branches, figurines made of this material, are often used in the decoration of ready-made vases, frames for pictures or paintings, coffee and tea cups, bottles, dummies. Secure porcelain inlay with an adhesive. The material is suitable for all surfaces: wood, plastic, metal, ceramic.
Bijouterie
Of cold porcelain gets an unusual decoration: medallions, brooches, earrings, clips, bracelets, pendants, barrettes. Of course, the material only decorate the base, but it looks part of the image is truly elegant and stylish, especially in the face of increased demand for products handmade. Of cold porcelain usually made tiny flower buds, leaves, dragonflies, butterflies, slices of fruit, berries, beads.
How to dry the finished product
Dry crafts of cold porcelain can be naturally and accelerated. The first time takes from a couple of days to a week. To accelerate the drying process, the product can be placed in the oven (the average temperature of 180-200 degrees). After "baking" crafts for a few hours, it still needs to be left for 12 hours to cool and dry yourself.
conclusion
Here we met with such a wonderful material, like a cold porcelain. It will become a viable alternative to polymer clay, which is so used to the majority of artists. Of course, with this porcelain (except for appearance) it is almost nothing in common. Perhaps those who gave the name of the new material, decided to show the irony. Natural high quality porcelain previously could afford only the rich, while his '' Cold '' namesake is publicly available, and, as we have learned from the master classes, easily made at home conditions. Two "," china "," which took a completely different niche in the pottery and sculpting, but both under the master's hand transformed into ornaments of great beauty and grace.