Today, let's talk about what big belly fancy yarn (referred to as big belly yarn) is, the differences between big belly yarn and bamboo yarn, and how we use spinning machines and roving machines to weave big belly fancy yarn.

1、 The fundamental difference between big belly yarn and bamboo knot yarn:

1. The difference in thickness between the base yarn.

Bamboo yarn: The ratio of the diameter of the coarse section to the diameter of the base yarn is within 5 times. Most bamboo joints are controlled within 2 times. Within the entire yarn, bamboo knots appear and disappear intermittently, not very noticeable.

The ratio of the diameter of the coarse section to the base yarn is more than 5 times, sometimes even more than 10 times, so the large belly is very prominent.

2. Coarse section length

Bamboo knot yarn: The coarse knots are very short, while the base yarn is very long. Generally, there are no more than two bamboo nodes per meter.

Big belly yarn: The thick section is sometimes longer than the base yarn. The large belly has less twist and simple hair growth, often wrapped with a thin filament or other short fiber yarn when in use. Sometimes cross wrap with left and right twist; Sometimes even a layer of outer sheath is wrapped around the syringe machine to enhance its strength.

2、 Spinning large belly yarn on a fine spinning machine

Method: The main method is to use an electromagnetic clutch to stop the front roller, so that the fibers sent out by the middle and rear rollers accumulate behind the front roller. When the clutch is engaged, the accumulated fibers are taken away to form a large belly.

Attention:

1. When producing larger belly yarns, the weight of the coarse yarn can be increased and the back stretch can be reduced.

2. The production of large belly yarn on the spinning machine is limited by the steel wire ring and winding, so the spinning machine is suitable for producing smaller large belly yarn.

3. Using this type of large belly yarn and processing it into wavy yarn on a fancy twisting machine can make the large belly more prominent.

3、 The roving machine produces large belly yarn

Large belly yarn of around 2000tex cannot be produced on regular spinning machines.

way:

1. Using the middle and rear roller feed on the roving machine to produce large belly yarn.

Due to the low twist of the roving machine, it is necessary to combine and twist this large belly yarn with one or two strong long or short yarns during use. It is best to use two solid yarns to separate and twist them left and right on a hollow ingot or wrapping machine for wrapping.

2. The commonly used belly yarn nowadays is 100-1000tex (1-10 count).

3. The main raw materials are long fibers such as wool and acrylic.

Article source: Fancy Thread Manufacturer

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