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Colored chinlon 6 fine-denier thermofuse and preparation process thereof

A technology of hot-melt yarn and nylon, which is applied in the field of chemical fiber nylon, and can solve the problem of no colored nylon 6 fine-denier hot-melt yarn

Active Publication Date: 2021-05-11
CHANGLE HENGSHEN SYNTHETIC FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing nylon 6 thermal fuses are all above 50D, and there are no products below 20D in China, and there is no colored nylon 6 fine denier thermal fuse

Method used

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  • Colored chinlon 6 fine-denier thermofuse and preparation process thereof
  • Colored chinlon 6 fine-denier thermofuse and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Put the dried low-melting point copolyamide chips into the silo, and then enter the screw extruder with the temperature set in each zone from the silo, and enter the spinning box after being melted by the screw extruder, and then pass through the spinning metering pump. After accurate metering, it is squeezed into the spinning assembly, and after being filtered and pressurized by the spinning assembly, it is extruded from the spinneret to form a tow. The tow is cooled by side air and then enters the spinning nozzle for oiling. After oiling, it passes through the tunnel The wound oil roll is colored, and then passes through the pre-internet, cold roll R1, hot roll R2, main network, godet, and then enters the winding head to be wound into a silk cake to produce nylon 6 fine denier colored hot melt Silk.

[0023] 1. Dry the low-melting-point copolyamide chips at 40°C to control their moisture content at 100ppm.

[0024] 2. The temperature of the screw is 160°C, the head p...

Embodiment 2

[0039] 1. Dry the low-melting point copolyamide chips at 80°C, and control the moisture content at 50ppm.

[0040] 2. The temperature of the screw is 190°C, the head pressure of the screw extruder is 120 bar, and the pressure after the metering pump is 150 bar.

[0041] 3. The diameter of the spinneret is 65mm, and the aperture ratio of the spinneret is 0.20:0.70-0.35:0.90.

[0042] 4. The temperature of side blowing is 23.0°C, and the wind speed of side blowing is 0.70m / s.

[0043] 5. Wear-resistant nozzles are used for the oil nozzles. The distance from the cluster position of the oil nozzles to the spinneret is 2.0m, and the length of the tunnel mouth is 4.0m.

[0044] 6. The oil used is oil-soluble spinning oil JL-118, the oil concentration is 40%

[0045] 7. The solution for coloring the tow is a mixed solution of water-soluble pigment and oil-soluble oil agent. The ratio of pigment components is 5wt% of water-soluble pigment and 95wt% of oil-soluble oil agent. After fu...

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Abstract

The invention discloses a preparation method of colored chinlon 6 fine-denier thermofuse. The preparation method comprises the following steps of putting dried low-melting-point copolyamide slices into a stock bin, then entering a screw extruder from the stock bin, entering a spinning manifold after being melted by the screw extruder, and then extruding into a spinning assembly after being metered by a spinning metering pump, performing filtering and pressurizing through the spinning assembly, extruding through a spinneret plate to form tows, cooling the tows through cross air blowing, feeding the tows into a spinning oil nozzle for oiling, coloring the oiled tows through a channel opening and a wound oil roller, and feeding the tows into a winding head to be wound into a spinning cake after passing through a pre-interlacer, a cold roller R1, a hot roller R2, a main interlacer and a draw-off godet, thereby obtaining the polyamide 6 fine denier colored thermofuse. The colored chinlon 6 fine-denier thermofuse is researched and developed, and overseas technical monopoly is broken through.

Description

technical field [0001] The invention belongs to the field of chemical fiber nylon, and in particular relates to a colored nylon 6 fine denier thermal fuse and a preparation process thereof. Background technique [0002] Thermal fuse, also known as low-melting fiber, is one of the functional fibers that have developed rapidly in recent years. It controls the melting point between 85°C and 180°C by adjusting the properties of the nylon 6 raw material. At normal temperature, weave the thermal fuse and other fibers into a fabric, and then heat-set the fabric in a dry or wet state. When the temperature reaches the melting point of the thermal fuse, the thermal fuse gradually softens and melts, resulting in stickiness. Knot effect, while other conventional fibers remain unchanged, so that the fibers are bonded together by thermal fuse. Therefore, the thermal fuse can replace chemical adhesives such as glue, avoid the pollution of volatile matter and powder layer, and is environm...

Claims

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Application Information

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IPC IPC(8): D01D5/08D01D5/088D01D5/096D01D5/16D01D7/00D01D10/02D01D11/00D01F6/80D01F11/08
CPCD01D5/08D01D5/088D01D5/096D01D5/16D01D11/00D01D10/02D01D7/00D01F6/80D01F11/08Y02P70/62
Inventor 陈鹏飞张文明
Owner CHANGLE HENGSHEN SYNTHETIC FIBER
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