Apple dinnerware

Bone china

Bone china is a type of porcelain body first produced in Great Britain in which calcined ox bone, bone ash, is an essential constituent. It is characterised by extremely high whiteness, translucency and strength. apple dinnerware may be an example of this procedure.

The initial use of bone ash in ceramics is credited to Thomas Frye in seventeen-forty-eight in which he used it to make a kind of soft-paste porcelain. In In the late eighteenth century, Josiah Spode continued with further developments, and consequently popularized it, by combining it with china clay, China stone and kaolin to compete with the imported Oriental porcelain.

The original elementary recipe of six parts bone ash, four parts china stone, and three and a half parts china clay is still the standard English body.

The manufacture of bone china generally uses a 2 stage firing where the first "biscuit" is fired without a glaze at 1280°C (2336°F) giving a translucid product and then it is glaze, or glost, fired at a lower setting below 1080°C (1976°F). apple dinnerware is probably made using this approach.

Soft-paste porcelain

Soft-paste porcelain is a type of porcelain and therefore a ceramic material.

Its history dates from the first exertions by European potters to imitate Chinese porcelain by using formulations of china clay and frit or ground-up glass; lime and soapstone were also known to have been added in some compositions. As these early mixtures suffered from high pyroplastic deformation, or slumping in the oven at high temperature, they were not economical to manufacture. Combinations were later used based on nepheline syenite, quartz, feldspars, kaolin and other feldspathic rocks. These were technically superior and are still in production today.

Hard-paste porcelain

Hard-paste porcelain is a hard, dense ceramic that was initially produced from a mixture of the feldspathic rock petuntse and kaolin fired at very high temperature. It was first manufactured in China around the ninth century.

The secret of its manufacture was not known in Europe until the early seventeen hundreds, when Böttger of Meissen, Germany discovered the formula. Despite attempts to keep it secret, the process was used by other German ceramic potteries and finally became widely known throughout the length and breadth of Europe.

Hard-paste porcelain is fired at a range of temperatures to make a multitude of unique end results. Depending on the firing technique, hard-paste porcelain can resemble stoneware or earthenware. But most of the time, it is unnecessary to utilize hard-paste porcelain for such lower temperature ceramics. Hard-paste porcelain can be utilized to create porcelain bisque, a hard crystalline product fired at extremely high temperatures in a pressure controlled environment. This process makes a semiopaque bright white ceramic. Unlike other bisque ceramics, porcelain bisque is almost impermeable by water, therefore it becomes unnecessary to glaze the body before painting. Manufacturers such as Lladro, Hummel and Precious Moments employ hard-paste porcelain simply for this reason, this could include apple dinnerware.