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Corrugated bristle-like brush filament and processing method thereof

A processing method and corrugated technology are applied in the processing field of corrugated imitation bristle filaments, which can solve the problems of uneven corrugation of corrugated filaments, poor overall flatness of filaments, and easy recovery of corrugated bending, and increase the adsorption capacity. , the contact area is increased, and the effect of improving the use effect

Inactive Publication Date: 2019-04-05
安徽玉达工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the processing and preparation of corrugated silk mainly adopts the post-processing forming method-machining method, which is mainly processed by straight wire, that is, after the straight wire is formed, it is curled by tooth roller extrusion. It is intermittent, but the corrugated filaments prepared by this method have problems such as uneven corrugation, obvious corrugated indentation, and easy recovery of corrugated bending, and it is easy to cause poor overall flatness of the brush filaments.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for processing corrugated bristle-like brush filaments. The bristle-like brush filaments are sheath-core composite fiber brush filaments composed of PTT polyester as the cortex and PET polyester as the core layer. The skin of the bristle-like brush filaments is The ratio of the core layer is 3:9;

[0029] The specific process steps are as follows:

[0030] (1) Heat and dry the raw materials of PTT polyester chips and PET polyester chips respectively, the heating temperature is at 110°C, control the moisture content of the dried polyester chips to be less than 0.01%, and then put them into the screw extruder and heat them to a molten state, Extrude to obtain thick-diameter PTT primary fibers and PET primary fibers respectively;

[0031] (2) Asymmetric cooling treatment: use high-speed low-temperature airflow to cool one side of the above-mentioned extruded thick-diameter primary fiber, the wind speed is 6m / s, and the wind temperature is 18°C;

[0032] (3) Stre...

Embodiment 2

[0042] A method for processing corrugated bristle-like brush filaments. The bristle-like brush filaments are sheath-core composite fiber brush filaments composed of PBT polyester as the cortex and PET polyester as the core layer. The skin of the bristle-like brush filaments is The ratio of the core layer is 4:9;

[0043] The specific process steps are as follows:

[0044] (1) Heat and dry the raw materials of PBT polyester chips and PET polyester chips respectively, the heating temperature is at 110°C, control the moisture content of the dried polyester chips to be less than 0.01%, and then put them into the screw extruder and heat them to a molten state, Extrude to obtain PBT primary fiber and PET primary fiber with thick diameter respectively;

[0045] (2) Asymmetric cooling treatment: use high-speed low-temperature airflow to cool one side of the above-mentioned extruded thick-diameter primary fiber, the wind speed is 6m / s, and the wind temperature is 18°C;

[0046] (3) S...

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Abstract

The invention discloses a corrugated bristle-like brush filament and a processing method thereof. PTT polyester or PBT polyester is taken as a skin layer and PET polyester is taken as a core layer, the skin-core layer polyester is subjected to asymmetric cooling treatment, and subjected to coating and winding treatment to obtain an eccentric skin layer structure. By utilizing the difference of thermal shrinkage rate of polyester raw material with skin-core structure, the composite fiber can be made to undergo the processes of stretching, constant-temperature heating and shaping treatment so asto make the composite fiber undergo the processes of corrugation and curling deformation. As the thermal shrinkage rate of the skin-core layer polyester is small, the curling degree of the brush filament obtained by stretching and shaping treatment is small, the brush filament is pressurized to obtain a corrugated brush filament finished product by combining with a mechanical processing method. The brush filament obtained by the corrugated bristle-like brush filament and the processing method thereof has good elasticity, the corrugated curling effect is natural and permanent, the contact areaof the corrugated brush filament to paint and other coatings is increased, the adsorption capacity to the coatings is increased, and the use effect can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of brush filament preparation, in particular to a processing method of a corrugated bristle-like brush filament and a processing method thereof. Background technique [0002] Three-dimensional crimped fiber, also known as spiral crimped fiber, has excellent bulkiness and pad elasticity. Among natural fibers, the natural shape of wool is to present periodic curls along the length direction. This natural curl is due to the asymmetry of the fiber cross-section. Inspired by this, in the prior art, two polymers with different components are used to mix with each other. Due to the different molecular structures and microscopic shapes of each component, different shrinkage will be generated, and strong longitudinal stress will be generated on the fiber cross section, making The fibers are twisted away from their longitudinal axis to form coils in a helical structure, exhibiting a three-dimensional coiled morpholog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/34D01D5/088D01D5/12D01D10/02D02G1/20D02G3/04D02G3/38D01F8/14
CPCD01D5/088D01D5/12D01D5/34D01D10/02D01F8/14D02G1/205D02G3/045D02G3/38
Inventor 汪靖福汪超
Owner 安徽玉达工具有限公司
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