Method for producing melt-blown nonwoven down dual constituent thermal insulating interlining

A non-woven, two-component technology, applied in the direction of non-woven fabrics, textiles and paper, can solve the problems of weakened resilience of thermal insulation wadding, poor strength of microfibers, and reduced thermal performance, etc., to increase vertical and horizontal tension, Improve the heat retention rate and improve the effect of heat retention rate

Inactive Publication Date: 2009-03-25
郭武胜
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the resilience of the flakes is easy to be compacted after being used for a period of time or squeezed each other
The air gap in the flake structure becomes smaller, resulting in flattening, which weakens the resilience of the warm flakes, reduces the bulkiness, and reduces the thermal insulation performance
Another point is that the polymer has poor strength to form microfibers at high temperatures, and is inferior to other fiber polymers in tensile strength

Method used

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  • Method for producing melt-blown nonwoven down dual constituent thermal insulating interlining

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Embodiment Construction

[0009] Referring to the accompanying drawings, the present invention provides a preparation method in which the two components are prepared separately and then combined together. The production process of non-woven flakes includes raw material feeding, melt metering and draw-spinning melt-blowing. The specific preparation method of the non-woven fiber is as follows: the polymer resin chip in the hopper is sent into the melting device, heated to a molten state; then sent into the extruder, and extruded through the spinneret hole. The diameter of the spinneret hole used is 0.28mm, and the diameter range of the extruded fiber is 0.5-5μm; the extruded fiber filaments are stretched into ultra-fine fibers under the action of the hot air heated by the heater; The fiber filaments are processed into superfine fibers with a diameter range of 0.5-2.5 μm. It is metered into the spinneret by the metering pump, and the molten short fiber is sprayed out from the spinneret to the fiber spinn...

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Abstract

The invention relates to a method for forming dual-component heat-insulating wadding by combining molten-spraying nonwoven fabrics and down. Specifically, the method comprises the following steps: heating polymer resin slices into molten state, then extruding, measuring and distributing the resin slices evenly to a hole of a spinneret device, and then stretching the resin slices into superfine fiber by hot air. Then the down is adhered with polymer fiber which is treated with fiber-stretching and is still not cured so as to form a net after being distributed by loosening, velvet-supplying and velvet-filling , and then a receiver and a finishing reel wind the net into the wadding. The invention adds down material into the existing molten-spraying production process, which can improve the heat-insulating rate and rebound elasticity of the wadding and can improve the transverse and longitudinal tensile strength of the wadding.

Description

technical field [0001] The invention relates to a method for preparing a melt-blown non-fabric containing down, belonging to the technical field of textiles. Background technique [0002] The preparation method of melt-blown non-woven flakes is to extrude the polymer from the spinneret hole in the molten state, and draw it into ultra-fine short fibers under the action of high-speed hot air flow, and the fibers fly to the coagulation network at extremely high speed to form fibers. Mesh, fiber fineness 1μm-5μm. Due to the good coverage of the melt-blown non-woven flakes, the web can be processed into fluffy and dense shapes. The arrangement of fibers is non-directional, and these structures and characteristics make melt-blown non-woven fabrics very suitable for filtration, warmth, and cleaning. The polymer resin slices are fed into the extruder through the hopper, and the slices become melt after heating, and the melt is evenly distributed into the spinneret by the metering ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/02D04H1/72D04H1/00D04H5/06
Inventor 唐世君郭武胜
Owner 郭武胜
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