A Celtic button knot is a
stopper knot
A stopper knot (or simply stopper) is a knot that creates a fixed thicker point on an otherwise-uniform thickness rope for the purpose of preventing the rope, at that point, from slipping through a narrow passage, such as a hole in a block. To pa ...
on a single rope that results in a spherical
decorative knot
A decorative or ornamental knot (also fancy knot) is an often complex knot exhibiting repeating patterns. A decorative knot is generally a knot that not only has practical use but is also known for its aesthetic or ornamental qualities. with hair braid / basket weave pattern. It is essentially a single strand
Turk's Head Knot that is structured such a way that it is effectively tied around the rope itself, creating a stopper. It typically is used as a
button
A button is a fastener that joins two pieces of fabric together by slipping through a loop or by sliding through a buttonhole.
In modern clothing and fashion design, buttons are commonly made of plastic but also may be made of metal, wood, or ...
, or as a knot securing the end of the rope from fraying.
Tying
There are 4 main steps to tying the Celtic knot:
# two consecutive overhand loops, the last one placed partially over the first forming two petals of a four petal flower
# left end woven from right horizontally through the loops; over, under, over, under forming the third petal
# left end woven again from left: over the edge, under, under, over and up through the central hole finishing the four petal flower
## optional: pushing the end again into the knot following the main part consistently on the inside. This may be repeated to give volume to the knot
# tightening evenly to close the petals of the flower forming a sphere around the main part
File:1 CelticKnot 1 of 1st pass.jpg, Step one of tying a Celtic Button knot is a simple loop
File:2 CelticKnot 2 of 1st pass.jpg, Step two of tying a Celtic Button knot is another loop
File:3 CelticKnot 3 of 1st pass.jpg, Step three of tying a Celtic Button knot end woven into loops
File:4 CelticKnot 4 of 1st pass.jpg, Step four: the end goes over the edge line, and under until the middle
File:5 CelticKnot 1 of optional 2nd pass.jpg, Optional second pass-step one: follow the first pass on the inside
File:6 CelticKnot 2 of optional 2nd pass.jpg, Optional second pass-step two: follow the first pass on the inside
File:7 CelticKnot optional 2nd Pass Done.jpg, Optional second pass-final step of tying a Celtic Button knot done
File:8 Celtic Knot optional 3rd Pass Done.jpg, Optional third pass-final step of tying a Celtic Button knot done
File:9 Celtic Knot 3 Pass Almost Tightened.jpg, Tightening step of tying a 3 pass Celtic Button knot
File:Three Pass Celtic Knot As Rope Swing Seat.jpg, A 3 pass Celtic Button knot as seat of a rope swing
File:DirsekteTekIpteDugmeHalkasi.JPG, Celtic Button knot on the bight therefore double, flat, with loop
File:DirskteTekIpteDugmeCiftKat.JPG, Celtic Button knot on the bight therefore double, tightened, with loop
References
{{Knots
Decorative knots
Stopper knots