IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Rabbit Skin Glue Granules
Animal glue is made by boiling skins until their collagen dissolves. Rabbit-skin glue dries more flexible than most hide glues, so painters size and prime canvas with it, and bookbinders and gesso makers use it. Soak the skins, warm them in water to about 70 °C, draw off the glue liquor, let it set, then dry it and break it into granules that keep for years if kept dry.
The picture: rabbit-skin glue granules (left) and granules swelling in water (right).
Olùbẹ̀rẹ̀
A week, mostly drying
Ìlànà
1
1
Soak the skins
Soak the skins
Cut the skins into small pieces and soak them in cold water until soft. Glue works treat hides with lime at this stage and then rinse and neutralise it; we leave the lime out, as in our hide-glue blueprint.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Awọ ehoro500 g
Omi5 lítàÀwọn irinṣẹ́ tí a nílò:
Bàkẹ́ẹ̀tì
Ọ̀bẹ iṣẹ́2
2
Rinse
Rinse
Pour off the soaking water and rinse the pieces in fresh water until it runs clear.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi5 lítàÀwọn irinṣẹ́ tí a nílò:
Bàkẹ́ẹ̀tì3
3
Draw the glue
Draw the glue
Cover the pieces with water and hold it at about 70 °C for some hours. Pour the glue liquor off through a cloth. Add fresh water and repeat a little hotter each time.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi4 lítàÀwọn irinṣẹ́ tí a nílò:
Ìkòkò Ńlá
Ẹ̀rọ Ìwọ̀n Ooru
Aṣọ wàrà-dídìBàkẹ́ẹ̀tì4
4
Let it set
Let it set
Pour the liquor in a thin layer on a cool, wet stone. As it cools it sets to a firm jelly.
Àwọn irinṣẹ́ tí a nílò:
Pẹpẹ Òkúta Pẹrẹsẹ5
5
Dry and break up
Dry and break up
Cut the jelly into small cubes and dry them on a rack in moving air until hard and glassy. Break them into granules and store them dry.
Àwọn irinṣẹ́ tí a nílò:
Ọ̀bẹ iṣẹ́
Àká Ìgbẹ6
6
Melt for use
Melt for use
Soak granules in cold water until swollen, then warm in a double boiler and use warm, around 60 °C.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi0.5 lítàÀwọn irinṣẹ́ tí a nílò:
Ìkòkò méjì onímí omiẸ̀rọ Ìwọ̀n Ooru7
7
Yield and strength
Yield and strength
Ń ṣí ìwé Jupyter…
Ìtọ́nisọ́nà yìí ń ṣe
Blueprint tó jọra
Àwọn blueprint wọ̀nyí pín ìmọ̀ — ọ̀nà, ohun-èlò tàbí ìlànà
CC0 Àgbègbè Gbogbogbò
Blueprint yìí ti jáde lábẹ́ CC0. O lè ṣe àdàkọ, yí padà, pín, àti lò láìsí ìyọ̀ǹda.
Ṣàtìlẹ́yìn Olùṣẹ́dá nípa rírà àwọn ọjà nipasẹ̀ Blueprint wọn Ẹ̀san Olùṣẹ́dá tí àwọn Olùtajà gbé kalẹ̀, tàbí ṣẹ̀dá àtúnṣe tuntun ti Blueprint yìí kí o sì fi sínú Blueprint rẹ gẹ́gẹ́ bí ìsopọ̀ láti pín owó-wíwọlé.