Physical antibacterial wet wipe
A wet wipe, physical technology, applied in physical treatment, topical antibacterial agent, drug combination and other directions, can solve the problem of easy precipitation of preservatives and irritation, etc.
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preparation example 1
[0046] 1) Reaction of octadecyl dimethyl tertiary amine with epichlorohydrin and hydrochloric acid:
[0047] The dry hydrogen chloride gas was introduced into the anhydrous ether solution of octadecyldimethyl tertiary amine to produce white precipitate. Then use water as the solvent, put a certain amount of epichlorohydrin in the dropping funnel, start to drop it slowly, drop it in 35 minutes, stir evenly at room temperature, react at 80°C for 12h, and titrate the epichlorohydrin quaternary ammonium After the reaction was completed, the solvent was removed by rotary evaporation at room temperature to obtain a light yellow paste residue, which was recrystallized with acetone, filtered under reduced pressure after the crystals were precipitated, and repeated several times. Obtain white powder single quaternary ammonium salt product---intermediate product N-(3-chloro-2-hydroxypropyl)-N,N-dimethyl octadecyl ammonium chloride.
[0048]
[0049] 2) Reaction process: Methyl oleat...
preparation example 2
[0057] Same as Preparation Example 1, the only difference is that in the 1) step, anhydrous diethyl ether solution of dodecyldimethyl tertiary amine is used to finally obtain 2-triethoxysilyl propaneoxy-1-N,N -Dimethyloleoyl-3-dodecyldimethylammonium propane dichloride (abbreviation: organosilicon bisquaternary ammonium salt B), the yield is 98.5%.
[0058]
Embodiment 1
[0060] The preparation method of the wet wipe body is as follows:
[0061] (1) Using bamboo pulp fibers with a length of 40mm and a diameter of 0.08mm as raw materials, a bamboo pulp non-woven fabric is obtained after cross-lapping and spunlace technology, and a non-woven fabric carrier with a thickness of 3mm is obtained after cutting and high-temperature sterilization ;
[0062] (2) Place the non-woven fabric carrier prepared in step (1) in the monomer solution configured by isopropanol / water mixed solvent, and soak it in the dark at room temperature for 24 hours, wherein the mass of the monomer in the monomer solution The fraction is 0.5%, and the volume ratio of isopropanol to water is 3:1;
[0063] (3) Under the protection of nitrogen, irradiate the non-woven fabric obtained after soaking in the above step (2) with gamma rays, and the irradiation intensity is 200KGy;
[0064] (4) After the irradiation is finished, unreacted monomers and homopolymers are extracted and dr...
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