Rachel

Sigourney

interventions

Leaving the natural lanolin or save it for later to add it back in.
Dye with natural materials
Soaking the wool to add moisture and make it more soft

SHEEP WOOL PROCESSING

SHEEP SHEARING MECHANICAL
'HANDPIECE'

RAW WOOL IS CLASSIFIED

scouring
removing dirt and lanolin

Drying wool

carding wool
detangle and clean fiber

split into slbbings for spinning

or formed in to sliver for futher processing

gilling wool
pulling through metal teeth

spinning and twisting

binding fibers to yarn

dyeing yarn

Glassmaking process

Silicon sand, also called quartz sand, is the main ingredient in glass making. Glass without iron contamination is sought after for clear pieces of glass because the iron, when in it, causes glass to appear greenish.
* Wear a face mask when working with the extremely finely ground silicon sand. It can irritate the throat and lungs if inhaled.
* Silicon sand is available through online stores. It's relatively cheap – small quantities shouldn't cost more than $18.[2] If you want to get started commercially, there are specialized wholesalers who can offer you competitive rates on large orders – sometimes less than €85 per tonne.
* If it is not possible to find silica sand that is sufficiently free of iron contamination, you could counteract the discoloration effect with small amounts of manganese dioxide. For a deliberately greenish effect, you can keep the iron in it!

Add sodium carbonate and calcium oxide to the sand.

Sodium carbonate (colloquially called soda ash) lowers the temperature needed to make commercial glass. But it allows moisture to pass through the glass and therefore calcium oxide is added to it to negate this effect again. Oxides of magnesium and/or aluminum can also be added to make the glass more durable. In general, these additives make up no more than 26 to 30 % of the glass mixture.

add other chemicals depending on the intended purpose of the glass.

The most common addition of decorative glassware is lead oxide. This provides the sparkle in crystal glass, also the softness that makes it easier to cut, and finally lowers the melting point. Lenses may contain lanthanum oxide for its reflective properties, while iron allows glass to absorb heat.
* Lead crystal can contain up to 33 % lead oxide; however, the more lead oxide it contains, the more skill it takes to shape the molten glass. That's why many lead crystal makers opt for less lead.

Depending on the intended purpose of the glass, add other chemicals.

The most common addition of decorative glassware is lead oxide. This provides the sparkle in crystal glass, also the softness that makes it easier to cut, and finally lowers the melting point. Lenses may contain lanthanum oxide for its reflective properties, while iron allows glass to absorb heat.
* Lead crystal can contain up to 33 % lead oxide; however, the more lead oxide it contains, the more skill it takes to shape the molten glass. That's why many lead crystal makers opt for less lead.

Place this mixture in a good heatproof crucible or container.

The crucible must be able to withstand the extremely high temperatures that arise in the glass kiln – depending on your additions, your glass mixture can melt at a temperature between 1,500 and 2,500 °C. Your crucible should also be easy to grab with metal hooks and sticks.

Let the mixture melt into a liquid.
Commercial silica glass is melted in a gas-fired melting furnace, specialty glassware can also be made using an electric melter, a pot melting furnace or a glass melting furnace.
• Silicon sand without additives becomes glass at a temperature of 2300 °C. If you add sodium carbonate (soda) to it, it lowers the required temperature to 1500 °C.

Cool the glass slowly in a glass oven. This process is called annealing, and it removes any stress points that may have formed in the glass during cooling. Glass that has not been annealed is clearly weaker. When this process is complete, the glass can be coated, laminated or otherwise treated with the aim of making it stronger and more durable.
* The exact annealing temperature can vary between 400°C and 550°C, based on the exact composition of the glass.[3] The degree to which the glass needs to be cooled can also vary – in general, larger pieces of glass should cool more slowly than smaller pieces. Make sure you research the annealing theory well before you start.
* A related process is tempering, in which glass, shaped and polished, is placed in an oven heated to at least 600 degrees Celsius. It is then rapidly cooled ("quenched") with strong air currents at high pressure. Annealed glass breaks at a pressure of 400 kgf/cm² (kilogram-force per square centimeter), while tempered glass breaks into small pieces no earlier than at a pressure of 700 kgf/cm², and usually as low as 1700 kgf/cm².

Shape the molten glass.

The glass can be shaped in a number of ways:
* The molten glass can be poured into a mold and cooled in it. This method dates back to the time of the ancient Egyptians and today many lenses are cast in this way.
* A large amount of molten glass can be collected at the end of a hollow tube. While the tube is being rotated, it is blown into it. The glass is then shaped by the air blown into the tube, by gravity pulling on the molten glass, and by any tools the glassblower uses to work the molten glass.
* The molten glass can also be poured into a bath of molten tin, with the tin for support, and blown with nitrogen to shape and smooth it. Glass made with this method is called float glass. Glass panes have been made with this method since the 1950s.

Homogenize the molten glass and remove the bubbles.

You achieve this by stirring until it has an even consistency, and then adding chemicals such as sodium sulfate, sodium chloride or antimony oxide.

Interventions

Using different types of sand
bolling it faster with dry ice carbon dioxide

add different minerals for the end result

mig process