Three-layer heat insulation material

Abstract

The invention discloses a three-layer heat insulation material. The three-layer heat insulation material comprises a surface layer, a middle layer and a lining layer, and the surface layer and the lining layer are respectively compounded to the upper surface and the lower surface of the middle layer. The surface layer is a coated layer, the coated layer is attached with a plastic film through a coating technology, and the surface of the coated layer is uniformly provided with a plurality of small holes, and has windproof and breathable effects; the middle layer is a heat insulation material, the heat insulation layer is a multilayer structured fabric, polyimide fabric layers and heat insulation filler layers are selected at intervals in the heat insulation layer, the heat conduction coefficient of every polyimide fabric layer is low, and the 300 DEG C heat conduction coefficient is 0.03 w / (m*k), so the heat insulation material has good heat insulation performance; and the lining layer is a comfortable layer, and the material of the comfortable layer adopts a fabric with skin-friendly, moisture absorbing, moisture guiding and moisture dissipating performances, so the integral heat insulation material has good moisture absorbing and breathing functions.

Description

technical field [0001] The invention relates to a thermal insulation material, in particular to a three-layer thermal insulation material. Background technique [0002] As we all know, in many cities in our country, the temperature in winter is more than ten degrees below zero or even tens of degrees, and the general fabrics can no longer satisfy people's resistance to the cold. For this reason, some people choose metal wool to make warm clothing materials, but due to It has the disadvantages of poor moisture permeability, poor moisture conductivity and poor flexibility, and has been replaced by thermal insulation materials with synthetic films. For example, Chinese patents 94227716.3 and 99239404. The synthetic film is used as a thermal insulation layer, and the upper fiber layer is applied between the synthetic film and the outside by acupuncture, and then the thermal insulation material of the upper fabric and the lining is compounded outside the fiber layer. Although th...

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Problems solved by technology

[0002] As we all know, in many cities in our country, the temperature in winter is more than ten degrees below zero or even tens of degrees, and the general fabrics can no longer satisfy people's resistance to the cold. For this reason, some people choose metal wool to make warm clothing materials, but due to It has the disadvantages of poor moisture permeability, poor moisture conductivity and poor flexibility, and has been replaced by thermal insulation materials with synthetic films. For example, Chinese patents 94227716.3 and 99239404. The synthetic film is used as the heat insulation layer, and the upper fiber layer is combined with the needle punching method between the synthetic film and the outside, and then the thermal insulation material of the upper fabric and the lining is compounded outside the fiber layer

Although these materials have better warmth retention properties, their air permeability and moisture conductivity are also better than metal wool, and they have been widely used in the market, but they still have shortcomings: 1. The synthetic film is not breathable and moisture-conductive , Needle-punching methods are needed to punch holes in the synthetic film during production, but the punching effect is not ideal; 2. The feel of the synthetic film is also poor

These reasons restrict the wide application of these materials in the market.

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