CN1040571A - Be improved to the porcelain tri-coloured glazed pottery of " combination of two glaze " by the ceramic tri-coloured glazed pottery - Google Patents

Abstract

The invention relates to the technology that traditional ceramic tri-coloured glazed pottery is improved to the porcelain tri-coloured glazed pottery.It is the porcelain body that can both produce with general ceramics factory, adopt a kind of special tri-coloured glazed pottery glaze formula and the enameling method of " combination of two glaze ", be fired into the porcelain tri-coloured glazed pottery, improve intensity, prolonged the life-span, guarantee no lead poisoning harm, realized that the furnishings of tri-coloured glazed pottery handicraft are admired and the practical purpose that combines.

Description

Be improved to the porcelain tri-coloured glazed pottery of " combination of two glaze " by the ceramic tri-coloured glazed pottery

The present invention relates to a kind of production method of porcelain body body tri-coloured glazed pottery handicraft.

Tri-coloured glazed pottery originally is a kind of antique pottery matter artwork of specializing in furnishings usefulness, tri-coloured glazed pottery is fired the achievement that success is China's the Tang Dynasty ceramics long-term practice accumulation, to so far, tri-coloured glazed pottery mainly is as the enjoying art product, make horse, animal figurines class and personage's musician figures such as camel, as for container class of making such as bottle, Zun, jar, kettle, though it is container that bowl waits name, in fact can not carrying liquid, the dress seepage, dixie cup is seepage but also lead poisoning hazard is arranged not only, and (because of containing plumbous oxide in the tri-coloured glazed pottery glaze) tri-coloured glazed pottery is a kind of pottery, and existing tri-coloured glazed pottery system continues to use traditional potter's clay prescription, promptly be that main raw material is moulded carcass with the clay, carry out biscuiting, then glazing, gloss firing, its unglazed firing temperature is generally the highest to be no more than 1100 degrees centigrade, if surpass this temperature, carcass will softening transform; In this temperature, when surpassing 100 degrees centigrade, carcass can produce certain porcelainization, but does not reach the degree of complete porcelainization, and makes glazing work become very difficult.Therefore, the biscuiting temperature of carcass can only be controlled between 850～980 degrees centigrade, like this, carcass just has water-absorbent preferably, so that use the writing brush glazing smoothly.The temperature of twice firing is carried out in glazing later on, also can only be controlled at about 950 degrees centigrade.Its intensity of the tri-coloured glazed pottery that is fired in this way is very poor, once vibrations or slight very easily fragmentation of collision.So packed and transported is difficulty very, have only the expensive foam plastic reservoir of employing to pack, when products export, also to adopt molded plastic package could reduce breakage rate, the wide in variety of exported product is the horse of carcass thickening, the furnishings artwork of a hunchbacked class, the artwork that one classes such as Zun with practicality, bottle, ashtray, pen container are also arranged, but can not carrying liquid, for example adorn the very fast seepage light of water, in addition, glaze material of tri-coloured glazed pottery is the material that contains plumbous oxide, also is unsuitable for the splendid attire beverage.Though tri-coloured glazed pottery is popular on domestic and international market, regrettably it practical is worth not highly, and percentage of damage height during transportation needs expensive tr.

People once tested, and its carcass is made with china clay, and the biscuiting temperature rises to more than 1300 degrees centigrade, make it reach the porcelain requirement, improved intensity and also avoided seepage, but again when its appearance applies the tri-coloured glazed pottery glaze, be difficult for adhesion again, make tri-coloured glazed pottery handicraft fire the back peeling, influence visual appearance.So tri-coloured glazed pottery up to now, is still a kind of ceramic vessel, can only admire usefulness for furnishings, and can not carrying liquid as diet or container vessels usefulness, have it not possess the shortcoming of practicality.

Pottery is with the difference of porcelain: " raw material of pottery carcass is a clay, contains multiple different material composition, and plasticity-is good.The raw material of porcelain carcass is a kaolin, remove the irony operation and handle through selected, and its main component is feldspar, quartz etc., the specification of quality strictness." " aspect firing temperature, pottery is usually at 900～1200 degrees centigrade, and porcelain is generally at 1300～1400 degrees centigrade." " other physical propertys of porcelain and pottery are also far different: porcelain is hard closely knit than the pottery carcass, and knock is clear and melodious loud and clear.Water-intake rate is less than 5/1000ths.Pottery then quality is loose thin, the simple and honest deepness of knock, water-intake rate height." (" Chinese pottery " sample explanation of publishing referring to Chinese technology mouth import and export corporation).

The invention provides a kind of method of producing the porcelain tri-coloured glazed pottery, a kind of special tri-coloured glazed pottery glaze and nontoxic sanitary ceramic glaze are respectively applied on the technology porcelain, make the pottery tri-coloured glazed pottery handicraft that is used for single furnishings originally expand as porcelain tri-coloured glazed pottery handicraft, make it not only can supply furnishings appreciation but also have practicality, this porcelain tri-coloured glazed pottery can seepage as the ware time spent, and its appearance surfaces still is extraordinarily beautiful and magnificent tri-coloured glazed pottery.Way is: with the china clay prescription of porcelain making device, carrying out the porcelain body body with the temperature of fire porcelain fires, carry out glazing with a special tri-coloured glazed pottery glaze then, after the glazing, burn out the porcelain tri-coloured glazed pottery, during glazing, adopt " combination of two glaze " method, promptly when making diet with the tri-coloured glazed pottery utensil, after carcass is shaped, impose non-toxic sanitary enamel at inwall and outside surface bead place, dry kiln and carry out burning till work in-process the first time, under half-finished appearance surfaces bead is sentenced, impose special tri-coloured glazed pottery glaze behind the kiln discharge, the tri-coloured glazed pottery utensil of using for non-diet can impose enamel in porcelain carcass inside, oven dry is gone into after klining becomes work in-process, imposes special tri-coloured glazed pottery glaze in the outward appearance surface, carries out then burning till the second time.The full of magnificent carriage aesthetic appearance of the existing tri-coloured glazed pottery inherent of the tri-coloured glazed pottery of firing like this has carcass hard closely knit, non-friable again, and impermeable practical value has realized that the furnishings of tri-coloured glazed pottery handicraft are admired and the practical purpose that combines.

See also accompanying drawing for convenience of description.Fig. 1 is the glazing figure that is used for the tri-coloured glazed pottery vessel that the splendid attire beverage uses, Fig. 2 is the glazing figure that is used for the tri-coloured glazed pottery vessel of splendid attire on-beverage, as shown in Figure 1, the tri-coloured glazed pottery vessel of using for the splendid attire beverage, its glazing position is: impose nontoxic enamel (1) in porcelain carcass (4) inside after biscuiting, outside surface bead place at carcass (4) imposes nontoxic glaze (2), and the lower external face place at the bead place imposes special tri-coloured glazed pottery glaze (1).

For splendid attire on-beverage tri-coloured glazed pottery vessel, its glazing position as shown in Figure 2: impose enamel (1) in porcelain carcass (4) inside after biscuiting, all impose tri-coloured glazed pottery glaze (3) at its outside surface.Introduce below and improve the tri-coloured glazed pottery glaze formula.

Tri-coloured glazed pottery should be three kinds of colors as its name suggests, but in fact finds more than three kinds of colors from unearthed relics, so tri-coloured glazed pottery is interpreted as colorful.The tri-coloured glazed pottery glaze formula is to be formed with the multiple additives prescription by various metal oxides, but with the tri-coloured glazed pottery glaze of existing prescription, is difficult for being attached on the porcelain carcass after the biscuiting, and burning till the back influences visual appearance.Adopt special tri-coloured glazed pottery glaze of the present invention can make on the porcelain carcass after this glaze is attached to biscuiting securely the moiety of this glaze such as following table:

Moiety

Ferric oxide

Cupric oxide

Cobalt oxide

Manganese oxide

Silicon oxide

Plumbous oxide

Zinc oxide

Magnesium oxide

Super porcelain fine earth

Weight percentage

0.3 ～1.8

0.6 ～1.6

0.7 ～1.6

0.8 ～1.8

36 ～38

38 ～40

0.08 ～1.2

0.02 ～0.04

21 ～24

The effect of ferric oxide in the tri-coloured glazed pottery glaze is to be reddish yellow after these tri-coloured glazed pottery vessel are burnt till; Cupric oxide is dark or light green; Cobalt oxide is dark or sky-blue; Manganese oxide is dark or shallow dark brown; The effect of silicon oxide is to make the tri-coloured glazed pottery glaze be the glassy phase effect, makes colored glaze burn till the back glossiness and improves; Zinc oxide mainly plays whitening effect, and certain effect of fluxing is also arranged; Magnesium oxide is fusing assistant, also plays certain whitening effect; Ultra-fine china clay can be controlled the flowability of colored glaze when burning till; The effect of plumbous oxide is to make glaze melt-flow optical crosstalk bright attractive in appearance.Ferric oxide, cupric oxide, cobalt oxide, manganese oxide are tinting material, color and depth degree required in the time of can be according to glazing during prescription be allocated in the content range shown in the table, the flowability when burning till according to colored glaze and the aesthetic feeling of finished product and gloss require to carry out the increase and decrease of ultra-fine china clay content and silica content, and all the other content are plumbous oxide.For example: as then in prescription, adopt cupric oxide, silicon oxide, plumbous oxide, zinc oxide, magnesium oxide and ultra-fine china clay when executing green, in this colour formula, also can not add zinc oxide and magnesium oxide.If listed tinting material in the table on not adding in glaze, then this glaze is exactly white glaze.

Claims (5)

1, a kind of the tri-coloured glazed pottery glaze is improved to the method for porcelain artwork by the ceramic artwork, it is characterized in that: the carcass of this tri-coloured glazed pottery uses the porcelain raw material to make, and after the biscuiting of the baking universe, imposes special tri-coloured glazed pottery glaze and carries out secondary and fire, to make the tri-coloured glazed pottery goods.

2, the method described in claim 1, it is characterized in that: contain in the prescription of this special tri-coloured glazed pottery glaze: ferric oxide, cupric oxide, cobalt oxide, manganese oxide require to add above-mentioned any component in special tri-coloured glazed pottery glaze according to color as the tinting material component.

3, the method described in claim 1 is characterized in that: also contain in the prescription of this special tri-coloured glazed pottery glaze: silicon oxide, plumbous oxide, ultra-fine china clay, and as basic binder component.

4, the method described in claim 1 is characterized in that: also can contain zinc oxide and magnesium oxide in the prescription of this special tri-coloured glazed pottery glaze.

5, the method described in claim 1, it is characterized in that: when glazing, adopt the method for " combination of two glaze ", when the tri-coloured glazed pottery vessel are the splendid attire beverage container, impose nontoxic enamel at carcass inwall and outside surface bead place, go into after klining becomes work in-process, the position imposes special tri-coloured glazed pottery glaze under the outside surface bead is sentenced again, when tri-coloured glazed pottery is splendid attire on-beverage container, only imposes enamel at the carcass inwall, go into after klining becomes work in-process, impose special tri-coloured glazed pottery glaze at outside surface again.