Three-dimensional hollow down-like short fiber

A three-dimensional hollow, imitation down technology, which is applied in fiber processing, hollow filament manufacturing, fiber chemical characteristics, etc., can solve the problems of lack of down warmth and softness, inability to feel close to down, and large fiber fineness, etc., to achieve good warmth The effect of high reliability, low cost and simple process operation

Active Publication Date: 2014-12-24
HUZHOU TONGYI ENVIRONMENTAL PROTECTION FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the 3--6D three-dimensional hollow imitation down has warmth retention, it is because of the large fiber fineness and poor hand feel, which cannot be close to the real down feel.
Although 1.2D imitation down has a feel close to down, it lacks the warmth and softness of down

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. PET and PBT are respectively selected from Sinopec Yizheng chemical fiber spinning grade semi-dull varieties, and the composite ratio PET:PBT is 6:4 according to the weight percentage;

[0024] 2. PET and PBT enter the composite assembly through their respective screw extruders. After the two materials are combined, they are sprayed out from the C-shaped spinneret hole, cooled and formed by the ring blowing, and then enter the winding silk barrel;

[0025] 3. The silk in the silk barrel is stretched and siliconized after being bundled, cut off and sent to the drying and setting machine;

[0026] 4. Use a high temperature of 175 degrees to cure the silicone oil.

[0027] 5. Relax and heat-set, then cut off and pack into storage.

[0028] The PET and PBT are Sinopec Yizheng chemical fiber spinning grade semi-dull varieties;

[0029] Step 2 Arrange a horizontal two-layer annular blowing system in the primary fiber crystallization area below the spinneret, blowing from...

Embodiment 2

[0034] 1. PET and PBT are selected from Sinopec Yizheng chemical fiber spinning grade semi-dull varieties, and the composite ratio PET:PBT is 5:5 according to the weight percentage;

[0035] 2. PET and PBT enter the composite assembly through their respective screw extruders. After the two materials are combined, they are sprayed out from the C-shaped spinneret hole, cooled and formed by the ring blowing, and then enter the winding silk barrel;

[0036] 3. The silk in the silk barrel is stretched and siliconized after being bundled, cut off and sent to the drying and setting machine;

[0037] 4. Use a high temperature of 175 degrees to cure the silicone oil.

[0038] 5. Relax and heat-set, then cut off and pack into storage.

[0039] The PET and PBT are Sinopec Yizheng chemical fiber spinning grade semi-dull varieties;

[0040] Step 2 Arrange a horizontal two-layer annular blowing system in the primary fiber crystallization area below the spinneret, blowing from the center t...

Embodiment 3

[0045] 1. PET and PBT are respectively selected from Sinopec Yizheng chemical fiber spinning grade semi-dull varieties, and the composite ratio PET:PBT is 4:6 according to the weight percentage;

[0046] 2. PET and PBT enter the composite assembly through their respective screw extruders. After the two materials are combined, they are sprayed out from the C-shaped spinneret hole, cooled and formed by the ring blowing, and then enter the winding silk barrel;

[0047] 3. The silk in the silk barrel is stretched and siliconized after being bundled, cut off and sent to the drying and setting machine;

[0048] 4. Use a high temperature of 175 degrees to cure the silicone oil.

[0049] 5. Relax and heat-set, then cut off and pack into storage.

[0050] The PET and PBT are Sinopec Yizheng chemical fiber spinning grade semi-dull varieties;

[0051] Step 2 Arrange a horizontal two-layer annular blowing system in the primary fiber crystallization area below the spinneret, blowing from...

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Abstract

The invention discloses a preparing method of 1.5D three-dimensional hollow down-like short fiber. The preparing method comprises the following steps that (1) PET and PBT respectively select Sinopec Yizheng chemical fiber spinning level semidull varieties, and the compounding proportion PET:PBT is 6:4 through calculation according to the weight percent; (2) the PET and the PBT enter a compounding assembly through respective screw extruding machines, and the two raw materials are sprayed out through C-shaped spinneret holes after being combined, and enter a winding yarn containing barrel through annular blowing air cooling forming; (3) yarns in the yarn containing barrel are subjected to beam collection and are then subjected to stretching and silicon processing, and the yarns enter a drying shaping machine after being cut off; (4) silicon oil is cured at 175-DEG C high temperature; (5) loosening hot shaping is carried out, and then, the yarns are cut and packaged and enter a warehouse.

Description

technical field [0001] The invention relates to the technical field of differential fiber preparation, in particular to a 1.5D three-dimensional hollow imitation down short fiber and a preparation method thereof. Background technique [0002] Natural down has the properties of fluffy and warm, smooth and soft, but it is not a fiber, but a feather cluster with the same purpose as the fiber cluster, and each large and small barn has independent resilience. Down is a collection of multi-component structures formed by the collection of these units with independent resilience. In recent years, a wide range of avian influenza has broken out all over the world, and large-scale hunting of poultry has made the supply of raw materials for down products tight, and the price of raw materials has also skyrocketed. Especially after the bird flu, people have more stringent requirements on the dust and fungus content indicators of the raw materials of velvet, which provides business opport...

Claims

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Application Information

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IPC IPC(8): D01D5/253D01D5/24D01D5/12D01D10/02D01F8/14
Inventor 潘月宝潘燕飞
Owner HUZHOU TONGYI ENVIRONMENTAL PROTECTION FIBER
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