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Preparing method of non-woven fabric with functions of heat accumulation, temperature adjusting and bacterial resistance

A non-woven fabric, heat storage and temperature regulation technology, applied in the field of medical textile materials, can solve the problems of the decline of the antibacterial performance of the non-woven fabric, the loss of antibacterial activity, and the limited movement of small molecules, and achieve high market application value and phase transition. The effect of high latent heat and low price

Inactive Publication Date: 2019-07-23
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual use process, the inorganic particles are easy to fall off from the surface of the nonwoven fabric or run off from the inside, resulting in the loss of antibacterial activity in a short period of time, the antibacterial performance of the nonwoven fabric is reduced, and antibacterial agents containing copper, silver, etc. Colored or easily oxidized and discolored, affecting product appearance
In addition, antibacterial nonwovens can also be obtained by immobilizing small molecule antibacterial agents such as antibiotics and quaternary ammonium compounds on the surface of nonwovens, but the movement of small molecules on the surface of the cloth is limited, and at the same time, due to the small amount of immobilization and insufficient activity, the antibacterial performance is also poor. will be affected

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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  • Preparing method of non-woven fabric with functions of heat accumulation, temperature adjusting and bacterial resistance
  • Preparing method of non-woven fabric with functions of heat accumulation, temperature adjusting and bacterial resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing a nonwoven fabric with heat storage, temperature adjustment and antibacterial functions, the steps are as follows:

[0032] Firstly, n-dodecyl alcohol phase change microcapsules were prepared

[0033] Slowly add 5 parts of n-dodecyl alcohol, 0.15 parts of sodium lauryl sulfate and 0.25 parts of pentaerythritol tetraacrylate into 100ml of water, raise the temperature to 50°C, stir at 1000 rpm for 10 min, and add 1 part of formaldehyde after emulsification is complete methyl acrylate and 0.075 parts of azobisisobutyronitrile, stirred for 20 min, then raised to 80°C and stirred for 5 h, the reaction product was filtered at room temperature, washed 2-3 times with absolute ethanol, and dried in vacuum for 24 h Obtain white n-dodecyl alcohol phase change microcapsules.

[0034] Then prepare the coating finishing solution

[0035] After mixing 20 parts of water-based polyurethane, 5 parts of fatty alcohol polyoxyethylene ether, 10 parts of n-dodecyl al...

Embodiment 2

[0038] A method for preparing a nonwoven fabric with heat storage, temperature adjustment and antibacterial functions, the steps are as follows:

[0039] Firstly, n-dodecyl alcohol phase change microcapsules were prepared

[0040] Slowly add 2 parts of n-dodecyl alcohol, 0.15 parts of styrene-maleic anhydride copolymer sodium salt and 0.25 parts of pentaerythritol triacrylate into 100 ml of water, raise the temperature to 50 ° C, stir at 1000 rpm for 10 min, and wait until the emulsification is complete Add 1 part of methyl methacrylate and 0.075 parts of azobisisobutyronitrile, stir for 30 min, then raise the temperature to 85°C and stir for 5 h, the reaction product is suction filtered at room temperature, washed with absolute ethanol 2-3 times, vacuum After drying for 24 h, white n-dodecyl alcohol phase change microcapsules were obtained.

[0041] Then prepare the coating finishing solution

[0042]After mixing 30 parts of water-based polyurethane, 2 parts of fatty alcoho...

Embodiment 3

[0045] A method for preparing a nonwoven fabric with heat storage, temperature adjustment and antibacterial functions, the steps are as follows:

[0046] Firstly, n-dodecyl alcohol phase change microcapsules were prepared

[0047] Slowly add 1 part of n-dodecyl alcohol, 0.2 part of styrene-maleic anhydride copolymer sodium salt and 0.25 part of pentaerythritol triacrylate into 100 ml of water, raise the temperature to 50°C, stir at 1000 rpm for 15 min, and wait until the emulsification is complete Add 1 part of methyl methacrylate and 0.1 part of azobisisobutyronitrile, stir for 30 min, then raise the temperature to 90°C and stir for 7 h, the reaction product is suction filtered at room temperature, washed with absolute ethanol 2-3 times, vacuum After drying for 24 h, white n-dodecyl alcohol phase change microcapsules were obtained.

[0048] Then prepare the coating finishing solution

[0049] After mixing 30 parts of water-based polyurethane, 1 part of sodium lauryl sulfate...

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Abstract

The invention discloses a preparing method of a non-woven fabric with functions of heat accumulation, temperature adjusting and bacterial resistance, and belongs to the field of medical textile materials. According to the preparing method, a suspension polymerization method is adopted, industrial-level n-dodecyl alcohol serves as a core material, polymethyl methacrylate serves as a wall material,and then phase-change microcapsules are prepared; then waterborne polyurethane, distilled water, a surfactant, the phase-change microcapsules and polyhexamethylene monguanidine hydrochloride are mixedin a certain proportion, and uniformly stirred to prepare a finishing liquor, a dry-method coating technology is adopted for coating a spunbond / melt-blown compound non-woven fabric with the finishingliquor, and then roasting the spunbond / melt-blown compound non-woven fabric for a period of time to obtain the spunbond / melt-blown compound non-woven fabric with the functions of heat accumulation, temperature adjusting and bacterial resistance. According to the preparing method, the cost of raw materials is low, the preparing process is relatively simple, less pollution is caused, industrial implementation is facilitated, the obtained non-woven fabric has the good effects of heat accumulation, temperature adjusting and bacterial resistance, and it is hopeful to achieve wide application of the fabric in the field of medical treatment and public health.

Description

technical field [0001] The invention relates to the field of medical textile materials, in particular to a method for preparing a nonwoven fabric with heat storage, temperature adjustment and antibacterial functions. Background technique [0002] Spunbond / meltblown composite nonwovens are composite products of spunbond and meltblown (spunbond and meltblown can be one or more layers). Compared with other non-woven fabric products with the same gram weight, the bonded non-woven fabric has high strength and similar vertical and horizontal properties, but its web forming uniformity and surface coverage are poor. The melt-blown non-woven fabric has a superfine fiber structure, fine fiber diameter, large specific surface area, small porosity, low filtration resistance, high filtration efficiency, good surface coverage and shielding performance, but its disadvantage is strength. Low, poor wear resistance. The spunbond / meltblown composite nonwoven fabric formed by combining the tw...

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

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0036D06N3/0038D06N3/0059D06N3/0068D06N3/14D06N2209/1671D06N2211/18
Inventor 李霞魏朋喻红芹章伟陈守辉张一风张明鹤张秋实
Owner ZHONGYUAN ENGINEERING COLLEGE
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