Composite non-woven thermal material and manufacturing method thereof

A technology of non-woven materials and non-woven fabrics, applied in the field of non-woven materials, can solve the problems of affecting the thermal insulation effect of PP non-woven fabrics, low tensile strength, short fibers, etc., so as to maintain the overall shape of the material and improve the resistance tension. ability, expand the effect of the application

A technology of non-woven materials and non-woven fabrics, applied in the field of non-woven materials, can solve the problems of affecting the thermal insulation effect of PP non-woven fabrics, low tensile strength, short fibers, etc., so as to maintain the overall shape of the material and improve the resistance tension. ability, expand the effect of the application

CN102806733AActive Publication Date: 2012-12-05东营俊富净化科技有限公司
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  • Composite non-woven thermal material and manufacturing method thereof
  • Composite non-woven thermal material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The process flow of this example, such as figure 1 As shown, first prepare PP melt-blown nonwovens, add calcium carbonate and PP slices at a mass ratio of 10:90 when spinning melt-blown nonwovens, and add calcium carbonate with a particle size distribution of 0.3-1.0 μm, and then Melt-blown non-woven fabrics are produced and processed. The heated and molten PP melt is sprayed from the spinneret and then blown into filaments by high-speed hot air. The nano-micron calcium carbonate powder is sprinkled to the Uncooled fibers are then embedded in the fiber surface. When the PP melt-blown fiber web is not cooled, the PET nonwoven fabric prepared by needle punching method is laid on the PP melt-blown fiber web, and the heat of the PP melt-blown fiber web is used to bond the two, and then the PET non-woven Another layer of PP non-woven fabric is melt-blown on the cloth to form a three-layer sandwich structure of PP melt-blown non-woven fabric layer + PET non-woven fabric laye...

Embodiment 2

[0043] The process flow of this example is the same as that of Example 1, wherein the mass ratio of calcium carbonate powder to PP chips is 15:85, and the particle size distribution of calcium carbonate powder is 1.0-1.5 μm. By adjusting the production process parameters of the meltblown method, the weight of the PP nonwoven fabric is 40g / m 2 , the fiber diameter is 3~5μm, and the weight of PET nonwoven fabric is 20g / m 2 , the thickness of chitosan film is 1mm. All the other are the same as the first embodiment.

[0044] After testing, the thermal composite non-woven material prepared in this example has good tensile strength, good stability, and a thermal retention rate of 64%. The antibacterial rate>99.98, the antibacterial rate>99.99 against Escherichia coli, and the antibacterial rate>99.97 against Candida albicans.

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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Abstract

The invention discloses a composite non-woven thermal material which comprises two non-woven polypropylene (PP) cloth layers, a non-woven polyethylene glycol terephthalate (PET) cloth layer between the two non-woven PP cloth layers, and the non-woven PP cloth layers and the non-woven PET cloth layer are compositely solidified. By adding the non-woven PET cloth layer between the two non-woven PP cloth layers, thermal characteristic of the non-woven PP cloth layers is guaranteed, high stretching resisting property and strong elasticity of the non-woven PET cloth layer are utilized, and integral stretching resisting property and form stability of the composite non-woven thermal material are improved. The composite non-woven thermal material can recover the form quickly after external force is eliminated, so that the structure of the non-woven PP cloth can be protected from being damaged, the thermal characteristic of the composite non-woven thermal material can be guaranteed, and the thermal rate can reach 60%-65%.

Description

technical field [0001] The application relates to the field of nonwoven materials, in particular to a heat-retaining composite nonwoven material and a preparation method thereof. Background technique [0002] Natural thermal insulation materials such as wool and down are the thermal insulation materials with better thermal insulation and other comprehensive properties in the world. Although natural thermal insulation materials have many advantages, they are far from being able to meet the needs of the market due to the limitation of raw material sources and prices, and the functional designability of natural thermal insulation materials is not good. [0003] Polypropylene (PP) nonwovens are processed by melt-blown technology. Due to the characteristics of its production process, melt-blown nonwovens have the characteristics of fluffy structure, fine fibers, small pores, high void ratio, and high air content in the fiber web. . In the PP nonwoven fabric, the air is divided ...

Claims

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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Application Information

Patent Timeline
05 Dec 2012
Publication
CN102806733A
IPC
B32B27/02; B32B27/06
Inventors
慕春霞; 梅威海