Bioleather production method
AssigneeGozen Bioworks Corp.
InventorEce Gözen Akin
Life of this patent
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Abstract
The present invention relates to a grown bioleather (1), which can be used in all sectors where animal skin and artificial leather are used, resembles a genuine leather both physically and optically, does not contain any chemicals, and has cellulose produced by microorganisms as its raw material and production method thereof. With the bioleather production method (100), a bioleather that can be named as vegan leather is obtained, which leather prevents climate change and environmental pollution by reducing carbon emissions and supports sustainable development and green economy. The said bioleather (1) involves a bacterial weaving process, can decompose in soil in a short amount of time, is highly environmentally friendly, flexible and has high tensile strength and high mechanical strength.
Claims27
A bioleather production method (100), wherein the bioleather is similar to genuine leather and grown under artificial conditions without chemicals, characterized in that, it comprises the steps of:
- preparation of a first solution by addition of black tea extract and glucose into pure water as raw material and addition of acetic acid and cellulose producing bacteria or cellulose producing fungus or cellulose producing bacteria with fungus in the prepared first solution when it reaches a temperature in the interval of 20-40° C. and preparation of a grown microorganism culture (3) by growing said bacteria or fungi (101),
- preparation of a second solution by adding 1-10% of black tea extract, 1-10% of green tea extract, and 1-10% of glucose to pure hot water, and when the prepared second solution reaches a temperature below 30° C., preparing fermentation liquid medium (4) by adding 1-5% of acetic acid and glycerol and 1-10% of lichen mixture into the prepared second solution (102),
- transfer of the microorganism culture (3) to a growth bath (8) in the liquid medium (4) and production of a pure bacterial biopolymer layer (9) by growing the same in static culture in the growth bath (8)-(103),
- obtaining a sterile biopolymer layer(S) by washing and purifying the obtained biopolymer layer (9) (104),
- obtaining a dyed biopolymer layer (U) by vegetable-dyeing and tanning of the sterile biopolymer layer(S)-(105),
- placement of the produced dyed biopolymer layer (U) into a mold (6) and laying of yarns (7) thereon (106),
- laying of another dyed biopolymer layer (U) on top of the dyed biopolymer layer (U) having the yarns (7) laid thereon, with the yarns (7) arranged in between both layers (107),
- bonding of the two dyed biopolymer layers (U) having yarns (7) arranged in between them with liquid gum arabic and glycerol-based natural adhesives (108),
- drying of the bonded dyed biopolymer layers (U) and performing a finishing process (109), and
- obtaining a bioleather (1) after drying of the dyed biopolymer layers (U) and performing the finishing process (110).
Dependencies are inferred from the claim text.