1. KIND AND SIZE OF YARN
(a) Natural Fiber Yarn……….... Cotton 10'S, 20'S
(b) Synthetic Fiber Yarn
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Polyamides…………... NYLON MULTIFILAMENT 110 Den., 210 Den. up to 1,260 Den., MONOFILAMENT Æ 0.12 Ü Æ 0.80, and MULTIMONOFILMENT 1.5x3
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Polyester …………….. 250 Den., 1,000Den.
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POLYETHYLEN …… H.D.P.E. 200Den., 250Den., 300 Den., 380Den., 600Den.
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POLYPROPYLEN……….... MONOFILAMENT, POLYSTEEL, SPLITFILM, MULTIFILAMENT 170Den. Ü 1,000Den.
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2. TYPE OF TWINE
(a) Twisted Type
(b) Braided Type
Generally twine is understood as 3 strand-twisted twine, but it can be twisted in 2 strands, 4 strands, 7 strands or 11 strands also depending on requirement.
Braided Twine is different from twisted twine and is braided in 8 strands or 16 strands. |
3. DIRECTION OF TWIST
There are two directions of twist as you can see in the illustrations. Namely "Z" type is generally called LEFT twist and "S" type called RIGHT twist. |
(a) Z TWIST (Left Twist)
(b) S TWIST (Right Twist)
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4. NUMBER OF PLY AND STRANDS OF TWINE USED
(a) Number of plies means total number of single yarn twisted together to compose twine.
(b) Number of strands means of set of yarns twisted together to compose twine. |
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Nylon 210 Deniers
Number of ply: 9
Direction of twist: Right
The above description
Is simply described as "Nylon 210d/9-R3" |
5. DEGREE OF TWIST
(a) Soft Twist
(b) Medium Twist
(c) Hard Twist
(d) Extra Hard twist
If not described, degree of twist is regarded as "Medium". |
6. TYPE OF KNOT |
(a) Single English Knot (S/K)
(b) Double English Knot (D/K)
(c) Knotless Rachel Type
(d) Knotless Twisted Type
If not described, type of knot is generally regarded as "Single English Knot". |
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7. SIZE OF MESH
There are many methods of describing the mesh size. It, therefore, should be clearly described in any order sheet.
a) Stretched Mesh
It is usually measured in "Inch" or "mm" from the
centre of a knot to that the second next knot.
(b) Half Mesh or Square Mesh
It is generally measured in "mm" from the middle of a knot to the middle of the neighbouring knot.
(c) The size mesh can be shown by number of knot in the unit of length.
(d) Mesh size can be measured by JAUGE: Inner stretched mesh measurement between end of a knot to the beginning of second knot |
(a) Stretched Mesh
(b) Half Mesh or Square Mesh
(c) 11 Knots in (11K/5) |
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Omfar measurement
This measurement is the number of half meshes in one Alen, and is adopted in Sweden and Norway. One Alen : 0.628Meter in Norway,0.549 in Sweden.
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Measurement by the number of rows per yard
This measurement is by the number of half meshes in one yard, and it is used in Holland. One yard: About 0.914 Meter
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Measurement by the number of knots per meter
This measurement (Passales) is by number of half meshes in one meter, and used in Portugal and Spain.
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Measurement by the number of knots in 6 inches
This measurement is used in Korea, Formosa, the Philippines, Japan and other countries in East Asia.
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8. SELVAGE AND REINFORCEMENT
Usually reinforcement is given to top or bottom of net or to both sides, or to all these places plus some where inside nets.
For reinforcement, double twine of same thickness as net twine, or single thicker twine is used. |
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SINGLE SELVAGE |
DOUBLE SELVAGE |
DOUBLE MESH |
REINFORCED SELVAGE |
9. DEPTH AND LENGTH OF NET
Depth of net is shown by number of meshes, and Length is shown by unit of length i.e. meter, yard, feet, fathom. The length is to be measured by stretching the net lengthways. |
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10. HEAT SETTING AND PACKING METHOD
The netting can be stretched and heat-set by two ways, one is called DEPTHWAY STRECHING, and the other is called LENGTHWAY STRETCHING. This information is very important since this heat setting direction's causes convenience or inconvenience for mounting and mending nets.
(a) Depthway stretched and folded:
Stretched and heat-set depthway, namely along the mesh depth, from selvage to selvage. (400MD X 1,000ML)
(b) Lengthway stretched and folded:
Stretched and heat-set lengthway, namely along the length of the net. (400MD X 1,000ML or 400MD X 100yds)
(c) Telaknot Stretching method:
A lengthway stretching machine is used to stretch nets in Depth way, but nets specifications are reversed (1,000MD X 400ML) |
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