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Medical non-woven material free of bag breaking and high bacterium blocking performance and preparation method thereof

A non-woven material, melt-blown technology, applied in the field of medical and health fiber materials, can solve the problems of large longitudinal breaking strength, reduced antibacterial performance, affecting bursting strength, etc., to achieve high bursting strength, improve balance, and improve top breaking force effect

Pending Publication Date: 2022-02-08
北京熵图医疗科技合伙企业(有限合伙) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fiber structure obtained in this way is microscopically as figure 2 The distribution shown is random, and the surface of the fiber is smooth and straight, but macroscopically, because the fiber filaments are arranged vertically, the longitudinal breaking strength is greater than the transverse breaking strength, and the transverse breaking strength is easy to break, so the longitudinal and transverse breaking strength is not balanced. The resistance affects the overall bursting strength of the fiber structure, which makes it easier to break the package, and the micropores between the fibers are uneven, and some of the micropores between the fibers are large, and the antibacterial performance will also be reduced.

Method used

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  • Medical non-woven material free of bag breaking and high bacterium blocking performance and preparation method thereof
  • Medical non-woven material free of bag breaking and high bacterium blocking performance and preparation method thereof
  • Medical non-woven material free of bag breaking and high bacterium blocking performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a kind of melt-blown multi-pile fiber, such as image 3 As shown, the outer surface of the fiber trunk of the melt-blown multi-fluff fiber 10 is uniformly or non-uniformly grown with ultrafine fluff 11, and the material of the melt-blown multi-fluff fiber 10 includes polypropylene.

[0043] The above-mentioned melt-blown multi-fluff fiber has an ultra-fine fluff surface. When a plurality of melt-blown multi-fluff fibers are arranged, due to the winding bonding force between the ultra-fine fluff and the winding bonding force between the melt-blown multi-fluff fibers themselves, it is extremely The force of vertical and horizontal bonding between multiple melt-blown multi-fluff fibers is greatly improved, and due to the effect of ultra-fine fluff, the micropores between fibers are reduced and denser, which not only improves the uniformity of micropores, but also improves the Antibacterial properties.

[0044] Preferably, the average fiber finenes...

Embodiment 2

[0047] This embodiment provides a kind of melt-blown cloth, such as Figure 4 As shown, it includes a plurality of melt-blown multi-fluff fibers 10 that are intertwined with each other, and each of the melt-blown multi-fluff fibers 10 is preferably the melt-blown multi-fluff fiber in Example 1.

[0048]The above-mentioned melt-blown cloth forms intertwining between ultra-fine fluff and melt-blown multi-fluff fibers by intertwining and connecting a plurality of melt-blown multi-fluff fibers, which improves the vertical and horizontal bonding force between them, and improves This ensures the balance of the longitudinal and transverse fracture strength of the melt-blown cloth, thereby improving the bursting strength of the melt-blown cloth and making it difficult to break the bag. In addition, the micropore size between the fibers of the meltblown cloth is reduced, the density of the micropores is increased, and the uniformity of the micropores is improved, so that the meltblown ...

Embodiment 3

[0050] This embodiment provides a medical nonwoven material that does not break the package and has high antibacterial properties, including a first spunbonded cloth layer, a mixed cloth layer and a second spunbonded cloth layer connected in sequence;

[0051] The first spunbond layer includes at least one layer of first spunbond S1;

[0052] The mixed cloth layer is an arrangement and combination layer between the meltblown cloth M in at least one layer of embodiment 2 and the second spunbonded cloth S2 with a number of layers greater than or equal to 0;

[0053] The second spunbonded fabric layer includes at least one layer of third spunbonded fabric S3.

[0054] The above-mentioned medical non-woven material that does not break the package and has high resistance to bacteria is designed in layers, and a mixed cloth layer containing the melt-blown cloth of Example 2 is interposed between the upper and lower layers of spunbond cloth layers. In addition to the advantages of h...

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Abstract

The invention discloses a medical non-woven material free of bag breaking and high in bacterium blocking performance and a preparation method thereof, and relates to the technical field of medical fiber materials, and the preparation method of the medical non-woven material comprises the steps: spunbond cloth is prepared; after a melt-blown raw material melt is placed in a conical annular airflow gap formed by inner ring airflow and outer ring airflow, the melt-blown raw material melt is treated through a texturing treatment space to form melt-blown multi-fluff fibers, the melt-blown multi-fluff fibers are evenly received, and melt-blown cloth is obtained; the spunbond cloth and the melt-blown cloth are placed according to a preset sequence and subjected to hot rolling reinforcement, and the medical non-woven material is obtained; and the medical non-woven material is cut by a cutter and then rolled into a coiled material. The material has the advantages of no bag breakage and high bacteria resistance.

Description

technical field [0001] The invention relates to the technical field of medical and health fiber materials, in particular to a non-woven medical material with no breakage and high bacteria-resistance performance and a preparation method thereof. Background technique [0002] As we all know, most of the protective products such as disposable medical masks, protective clothing, and surgical gowns are made of non-woven fabrics. At present, the common non-woven fabrics include spunbonded nonwovens, meltblown Spray composite non-woven fabrics, etc. Most of these materials have the advantages of good filterability, heat preservation, moisture conductivity, etc., so they have been widely used. [0003] For example, if figure 1 As shown, it is a typical existing production line, equipped with 4 spinning devices, 2 spunbond spinnerets at the head and tail, and 2 meltblown die heads in the middle, which can produce various specifications of SS, SMS, SMMS and other products. The fibe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/56D04H1/4382D04H1/4282D01D5/00B32B5/02B32B33/00B32B27/02B32B27/12B32B27/32
CPCD04H1/56D04H1/43838D04H1/4282D01D5/0023D01D5/0061B32B5/02B32B5/26B32B33/00
Inventor 沙红卫
Owner 北京熵图医疗科技合伙企业(有限合伙)
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