CN116267927B - 强化杀菌效果的消毒湿巾及其制备方法 - Google Patents
强化杀菌效果的消毒湿巾及其制备方法 Download PDFInfo
- Publication number
- CN116267927B CN116267927B CN202310524052.8A CN202310524052A CN116267927B CN 116267927 B CN116267927 B CN 116267927B CN 202310524052 A CN202310524052 A CN 202310524052A CN 116267927 B CN116267927 B CN 116267927B
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- disinfectant
- modified
- spunlaced
- sterilizing
- enhanced
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Classifications
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- D—TEXTILES; PAPER
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
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- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
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- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
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- A—HUMAN NECESSITIES
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- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium compounds
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- A—HUMAN NECESSITIES
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- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=CX2 groups, e.g. isothiourea
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- A—HUMAN NECESSITIES
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- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P3/00—Fungicides
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/16—Paper towels; Toilet paper; Holders therefor
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
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- C11D1/72—Ethers of polyoxyalkylene glycols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/049—Cleaning or scouring pads; Wipes
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0026—Low foaming or foam regulating compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/162—Organic compounds containing Si
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
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Abstract
本发明属于消毒产品技术领域,具体涉及强化杀菌效果的消毒湿巾及其制备方法。包括消毒液和作为消毒液载体的改性水刺无纺布;改性水刺无纺布为在预润湿水和水刺水中均加入0.02%~0.04%的阳离子中和剂和0.02%~0.04%的有机硅梳理剂生产的。本发明通过无纺布改进,非离子表面活性剂、氟硅消泡剂和醇类物质的添加等强化杀菌效果,使杀菌效果可长时间保持,且可有效降低擦拭后残痕。本发明的制备方法采用喷洒的方式将消毒液与无纺布结合,同样强化了杀菌效果。
Description
技术领域
本发明属于消毒产品技术领域,具体涉及强化杀菌效果的消毒湿巾及其制备方法。
背景技术
消毒湿巾目前多应用于医院的重点科室、重点设备的清洁消毒,以及长期卧床病人的全身清洁消毒等,主要用于医院环境表面的消毒和清洁,因为使用方便,即擦即用,可有效预防交叉感染等优势,被认为在未来可以取代医院传统环境表面消毒方法。消毒湿巾是以非织造布、织物、无尘纸或其他原料为载体,纯化水为生产用水,适量添加杀菌剂等原材料,制成的具有清洁和消毒作用的产品,适用于人体、一般物体表面、医疗器械表面及其他物体表面。当前最主流的消毒湿巾使用水刺无纺布浸润消毒液制备而成。
消毒液主要包括季铵盐类的杀菌剂和其它助剂,季铵盐本身不但是一种杀菌剂,还是一种表面活性剂,它可以降低物体的表面张力,这个特点会大大增加它的消毒和清洁作用。其杀菌原理是,季铵盐在水中水解后带正电荷,吸附于微生物表面,形成离子微团,逐步渗入细胞质的类脂层和蛋白层,从而改变细胞膜的通透性,使细胞内容物外渗,导致细胞死亡,同时又使细胞蛋白凝固,使酶及其结构蛋白变性,破坏微生物的代谢和使胞浆蛋白、胞膜沉淀,将微生物杀死。季铵盐杀菌剂低浓度即可有效杀菌,毒性极低,安全、无色、无味、无刺激性、稳定,是较为理想的杀菌剂。配方选用复合双链季铵盐作为杀菌剂的杀菌物质,通过协同增效的作用,杀菌水平可以达到中水平杀菌剂。通过添加表面活性剂和一定量醇的方式来降低表面活性,增加其铺展性,同时可以增加去污效果,实现清洁和消毒一体化,增加医院环境表面清洁的效率。
水刺无纺布是将高压微细水流喷射到一层或多层纤维网上,使纤维相互缠结在一起,从而使纤维网得以加固而具备一定强力,得到的织物即为水刺无纺布。水射流穿过纤维网后,受拖持网帘的反弹,再次穿插纤维网,由此,纤维网中纤维在不同方向高速水射流穿插的水力作用下,产生位移、穿插、缠结和抱合,从而使纤维网得到加固。水刺无纺布具有以下优点:1、柔性缠结,不影响纤维原有特征,不损伤纤维;2、外观比其它非织造材料更接近传统纺织品;3、强度高、低起毛性;4、高吸湿性、快速吸湿;5、透气性好;6、手感柔软、悬垂性好。水刺无纺布以其优良的物理性能、物美价廉的优势,作为消毒液的载体广泛用于消毒湿巾的生产中。
当前水刺无纺布浸润季铵盐类消毒湿巾存在以下问题:
1、生产用液加入到无纺布中后,发挥实际杀菌作用的挤出液有效成分立刻出现明显下降,超过了GB/T 38499-2020《杀菌剂稳定性评价方法》中规定的杀菌剂常规的有效成分下降率不高于10%的要求,并且下降的程度随不同批次的原料波动较大且不稳定;
2、由于采用无纺布在消毒液中浸渍生产消毒湿巾,导致水刺无纺布中的阴离子在消毒液中释放,形成累积效应,不断对阳离子杀菌剂造成消耗,进而影响消毒湿巾中消毒液的杀菌效果;
3、在湿巾生产过程中,无纺布和消毒剂浸润时会因为机械混合进入空气,产生气泡,气泡的存在使消毒湿巾浸润不均匀,影响了成品的消毒效果;常规消泡剂会被季铵盐乳化,如果1小时内不灌装,消泡效果逐渐失效;
4、湿巾在使用后,擦拭物体上会出现较明显的使用残痕,残痕大多是杀菌剂季铵盐干燥后附着在物体表面形成的,在视觉上有不好的影响,从而会影响用户的使用体验。
中国发明专利CN113287611A(公开日2021.8.24)提供了一种消毒湿巾及其制备方法,采用的棕榈酸异丙酯等,虽然会减少水痕,但使用后的酯类不好处理。中国发明专利CN113244147A(公开日2021.8.13)提供了一种复合杀菌的消毒湿巾及其制备方法,通过杀菌剂复配实现了复合杀菌效果,其生产成本较高,工艺较复杂。中国发明专利CN110973137A(公开日2020.4.10)中使用了消泡剂,但是并没有提到消泡剂的作用,且未涉及消泡剂的防乳化。中国发明专利CN114788521A(公开日2022.7.26)使用了碱性增效剂,利用了极少量醇、两性表面活性剂与季铵盐三者之间的复合增效作用,但是增效体系复杂,且未提及碱性增强效果。
发明内容
为解决上述技术问题,本发明提供一种强化杀菌效果的消毒湿巾,本发明通过无纺布改进,非离子表面活性剂、氟硅消泡剂和醇类物质的添加等强化杀菌效果,使杀菌效果可长时间保持,且可有效降低擦拭后残痕。本发明的制备方法采用喷洒的方式将消毒液与无纺布结合,同样强化了杀菌效果。
本发明所述的强化杀菌效果的消毒湿巾,包括消毒液和作为消毒液载体的改性水刺无纺布;
改性水刺无纺布为在预润湿水和水刺水中均加入质量分数为0.02%~0.04%的阳离子中和剂和0.02%~0.04%的有机硅梳理剂生产的;
消毒液由以下质量百分比的原料制成:
非离子表面活性剂 0.02%~0.20%,
阳离子杀菌剂 0.10%~1.00%,
氟硅消泡剂 0.05%~1.00%,
醇类 5 %~40%,
甘油 0.10%~2.00%,
尿囊素 0.05%~0.20%,
透明质酸 0.05%~0.20%,
碱性调节剂 0.01%~0.03%,
余量为去离子水。
改性水刺无纺布包括粘胶纤维和涤纶纤维,其中粘胶纤维占粘胶纤维和涤纶纤维质量之和的百分数为30%~50%。
阳离子中和剂为十六烷基三甲基溴化铵和十八烷基二甲基苄基氯化铵中的一种。
有机硅梳理剂为二甲基硅氧烷和甲基苯基硅油中的一种。
非离子表面活性剂为脂肪醇聚氧乙烯醚、烷基酚聚氧乙烯醚和脂肪酸聚氧乙烯酯中的一种。
阳离子杀菌剂为葡萄糖酸氯己定、苯扎氯铵和二癸基二甲基氯化铵中的一种。
氟硅消泡剂为聚三氟丙基甲基硅氧烷。
醇类为乙醇、正丙醇和异丙醇中的一种。
碱性调节剂为氢氧化钠、氢氧化钾、三乙醇胺中的一种。
本发明所述的强化杀菌效果的消毒湿巾的制备方法,包括如下步骤:
(1)在反应釜中加入去离子水、醇类和非离子表面活性剂,搅拌10~20min;
(2)向反应釜中加入阳离子杀菌剂和氟硅消泡剂,搅拌10~20min;
(3)向反应釜中加入甘油、尿囊素、透明质酸和碱性调节剂,搅拌10~20min,得到消毒液;
(4)向改性水刺无纺布上喷洒消毒液,使消毒液被改性水刺无纺布吸收而附着于其上,包装后即得。
其中,消毒湿巾中的消毒液与改性水刺无纺布的重量比为1.7~5.0。
本发明主要应用对象为医疗机构医务人员或大众群体。
水刺无纺布的生产工艺一般包括开松混合、梳理成网、预润湿、正反水刺、后整理、烘燥和卷绕,其中,预润湿和正反水刺均用水来完成,如图1所示;本发明通过在预润湿水和水刺水中加入阳离子中和剂和有机硅梳理剂,改性了水刺无纺布。水刺无纺布对消毒液中杀菌剂损耗,其核心原因是起杀菌作用的物质主要为阳离子的杀菌剂,而水刺无纺布的原料主要为粘胶纤维和涤纶纤维,涤纶又称PET,是一种非离子的物质,基本不会对阳离子杀菌剂产生影响;而粘胶的生产过程中使用到了纤维素磺酸酯,它与氢氧化钠反应生成磺酸钠等阴离子物质在生产后残留在粘胶纤维上,导致了阳离子杀菌剂的损耗。通过使用ZETA电泳法,对水刺无纺布水溶液进行了测试,发现电位带阴离子电荷,进一步证明水刺无纺布确实呈现阴离子特性。而不同批次对消毒液的影响效果又不一致,原因在于:不同批次的粘胶纤维生产工艺和添加剂差异较大,很难精准控制完全一模一样。除此之外,无纺布的接触角也会对杀菌剂产生一定的影响。从这个理论来说,无纺布的组成对杀菌剂的损耗作用有明显的影响,粘胶纤维含量越低,杀菌剂的损耗越小,越有利于杀菌效果的提升,但是粘胶纤维含量太低,手感舒适性和吸水性会下降,因此粘胶纤维与涤纶纤维的质量比要在一定范围内才能满足消毒湿巾的使用需求。
因水刺无纺布中存在阴离子物质,本发明选用粘胶纤维和涤纶纤维质量之和中粘胶纤维占比在一定范围内的水刺无纺布,在无纺布生产阶段的预润湿水和水刺水中加入阳离子中和剂和有机硅梳理剂,通过加入阳离子中和剂中和无纺布中的阴离子,同时通过加入有机硅整理剂使无纺布接触角变小,使阳离子中和剂更容易与无纺布生产过程中形成的阴离子物质结合,二者协同作用下,得到的水刺无纺布中的阴离子物质含量远远降低,降低了阴离子物质对阳离子杀菌剂的损耗,强化了湿巾的杀菌效果。
本发明在消毒液中加入氟硅消泡剂,在湿巾生产过程中,无纺布和消毒剂浸润时会因为机械混合进入空气,产生气泡,气泡的存在使消毒湿巾浸润不均匀,影响了成品的消毒效果。常规消泡剂会被季铵盐乳化,如果1小时内不灌装,消泡效果逐渐失效。常规的有机硅等消泡剂是带有Si-O基团的,这种基团容易被季铵盐乳化失效。氟硅橡胶电子结构特殊,氟原子自身拥有很大的电负性,以及其具有较短的C-F键,键能很高,因此氟硅橡胶性能稳定,具有良好的耐化学介质的能力,让体系难以被乳化。
本发明在消毒液中加入非离子表面活性剂,首先非离子表面活性剂对阳离子杀菌剂没有损耗作用,其次,如图2所示,非离子表面活性剂可有效降低表面张力,使阳离子杀菌剂可以更快、更均匀地分布在接触物表面,强化了杀菌效果,保证了杀菌效果长期的有效性和稳定性。再者,非离子表面活性剂会增加溶液中胶束的数量,同时支链化程度较高的非离子表面活性剂具有良好的渗透性,有利于阳离子杀菌剂透过致病菌的细胞壁,从而对杀菌剂的杀菌作用起到协同作用。
本发明消毒液中加入醇类与非离子表面活性剂配合,可有效降低残痕。残痕的产生主要由于液体干燥后阳离子杀菌剂的表面残留,分布不均的杀菌剂残留在物体表面上形成了一道道残痕,表面活性剂的添加可使物体表面分布的杀菌剂更均匀,可以一定程度上降低残痕的明显程度;同时,醇类物质可提高干燥速度,在一定干燥速度下,液体蒸发不容易被空气气流干扰,也就减少了液渍在蒸发过程中对空气中颗粒和尘埃的吸附,而这些颗粒和尘埃被吸附后会与杀菌剂一起凝固成型构成残痕,因此,在加入醇类后,能够达到湿巾使用残痕几乎消失的效果。
本发明消毒湿巾的加液采用消毒液不循环方式,直接将消毒液喷洒到改性水刺无纺布上,有效杜绝了由于无纺布中阴离子物质积累对阳离子杀菌剂造成的损耗。本发明湿巾加液设备可参考实用新型专利CN217908426U。
与现有技术相比,本发明的有益效果是:
1、阳离子中和剂和有机硅梳理剂降低了水刺无纺布对阳离子杀菌剂的损耗;
2、非离子表面活性剂使阳离子杀菌剂可以更快、更均匀地分布在接触物表面,强化了杀菌效果,保证了杀菌效果长期的有效性和稳定性;
3、加入氟硅消泡剂,在湿巾生产过程中,避免无纺布和消毒剂浸润时会因为机械混合产生气泡,同时避免消泡剂被乳化,持续消泡效果强。从而使消毒湿巾浸润均匀,强化了消毒效果;
4、非离子表面活性剂和醇类配合,有效消除使用残痕;
5、本发明的制备方法采用喷洒的方式将消毒液与无纺布结合,相较于传统的浸渍方式,本发明消毒液不循环重复使用,进一步降低了水刺无纺布中阴离子物质对阳离子杀菌剂造成的损耗,同样强化了杀菌效果。
附图说明
图1、本发明水刺无纺布制备流程示意图;
图2、非离子表面活性剂对阳离子杀菌剂的作用示意图;
图3、本发明实施例1消毒湿巾表面形貌图;
图4、本发明对比例8消毒湿巾表面形貌图;
图5、本发明实施例1和对比例8杀菌效果对比柱状图;
图6、本发明实施例2和对比例11杀菌效果对比柱状图;
图7、本发明实施例2、对比例9和对比例10残痕效果对比图(图中,由左至右分别为实施例2、对比例9和对比例10的残痕效果图);
图中,1、阳离子杀菌剂分子。
具体实施方式
下面将结合附图和实施例,对本发明的技术方案进行清楚、完整地描述。
实施例中用到的所有原料除特殊说明外,均为市购。
实施例1
本发明所述的强化杀菌效果的消毒湿巾,包括消毒液和作为消毒液载体的改性水刺无纺布;
改性水刺无纺布中粘胶纤维占粘胶纤维和涤纶纤维质量之和的百分数为30%;
改性水刺无纺布为在预润湿水和水刺水中均加入质量分数为0.02%的十六烷基三甲基溴化铵和0.02%的二甲基硅氧烷生产的;
消毒液由以下质量百分比的原料制成:
脂肪醇聚氧乙烯醚AEO-9 0.02%,
葡萄糖酸氯己定 0.10%,
聚三氟丙基甲基硅氧烷 0.05%,
乙醇 5%,
甘油 0.10%,
尿囊素 0.05%,
透明质酸 0.05%,
氢氧化钠 0.01%,
余量为去离子水。
其中,聚三氟丙基甲基硅氧烷粘度为1000mPa·s。
本发明所述的强化杀菌效果的消毒湿巾的制备方法,包括如下步骤:
(1)在反应釜中加入去离子水、乙醇和脂肪醇聚氧乙烯醚-9,搅拌10min;
(2)向反应釜中加入葡萄糖酸氯己定和聚三氟丙基甲基硅氧烷,搅拌15min;
(3)向反应釜中加入甘油、尿囊素、透明质酸和氢氧化钠,搅拌10min,得到消毒液;
(4)向改性水刺无纺布上喷洒消毒液,使消毒液被无纺布吸收而附着于无纺布上,包装后即得,其中,消毒湿巾中的消毒液与改性水刺无纺布的重量比为1.7。
实施例2
本发明所述的强化杀菌效果的消毒湿巾,包括消毒液和作为消毒液载体的改性水刺无纺布;
改性水刺无纺布中粘胶纤维占粘胶纤维和涤纶纤维质量之和的百分数为40%;
改性水刺无纺布为在预润湿水和水刺水中均加入质量分数为0.03%的十六烷基三甲基溴化铵和0.03%的二甲基硅氧烷生产的;
消毒液由以下质量百分比的原料制成:
烷基酚聚氧乙烯醚TX-9 0.10%,
苯扎氯铵 0.243%,
聚三氟丙基甲基硅氧烷 0.50%,
正丙醇 20%,
甘油 1.00%,
尿囊素 0.10%,
透明质酸 0.10%,
氢氧化钾 0.02%,
余量为去离子水。
其中,聚三氟丙基甲基硅氧烷粘度为1500mPa·s。
本发明所述的强化杀菌效果的消毒湿巾的制备方法,包括如下步骤:
(1)在反应釜中加入去离子水、正丙醇和烷基酚聚氧乙烯醚-9,搅拌15min;
(2)向反应釜中加入苯扎氯铵和聚三氟丙基甲基硅氧烷,搅拌20min;
(3)向反应釜中加入甘油、尿囊素、透明质酸和氢氧化钾,搅拌20min,得到消毒液;
(4)向改性水刺无纺布上喷洒消毒液,使消毒液被无纺布吸收而附着于无纺布上,包装后即得,其中,消毒湿巾中的消毒液与改性水刺无纺布的重量比为3.0。
实施例3
本发明所述的强化杀菌效果的消毒湿巾,包括消毒液和作为消毒液载体的改性水刺无纺布;
改性水刺无纺布中粘胶纤维占粘胶纤维和涤纶纤维质量之和的百分数为50%;
改性水刺无纺布为在预润湿水和水刺水中均加入质量分数为0.04%的十八烷基二甲基苄基氯化铵和0.04%的甲基苯基硅油生产的;
消毒液由以下质量百分比的原料制成:
脂肪酸聚氧乙烯酯AEO-9 0.20%,
二癸基二甲基氯化铵 1.00%,
聚三氟丙基甲基硅氧烷 1.00%,
异丙醇 40%,
甘油 2.00%,
尿囊素 0.20%,
透明质酸 0.20%,
三乙醇胺 0.03%,
余量为去离子水。
其中,聚三氟丙基甲基硅氧烷粘度为2000mPa·s。
本发明所述的强化杀菌效果的消毒湿巾的制备方法,包括如下步骤:
(1)在反应釜中加入去离子水、异丙醇和脂肪酸聚氧乙烯酯-9,搅拌20min;
(2)向反应釜中加入二癸基二甲基氯化铵和聚三氟丙基甲基硅氧烷,搅拌10min;
(3)向反应釜中加入甘油、尿囊素、透明质酸和三乙醇胺,搅拌15min,得到消毒液;
(4)向改性水刺无纺布上喷洒消毒液,使消毒液被无纺布吸收而附着于无纺布上,包装后即得,其中,消毒湿巾中的消毒液与改性水刺无纺布的重量比为5.0。
对比例1
本对比例1与实施例2的不同之处在于,改性水刺无纺布生产中在预润湿水和水刺水中未加入二甲基硅氧烷,除此之外均与实施例2相同。
对比例2
本对比例2与实施例2的不同之处在于,改性水刺无纺布生产中在预润湿水和水刺水中未加入十六烷基三甲基溴化铵,除此之外均与实施例2相同。
对比例3
本对比例3与实施例2的不同之处在于,改性水刺无纺布生产中在预润湿水和水刺水中未加入二甲基硅氧烷和十六烷基三甲基溴化铵,除此之外均与实施例2相同。
对比例4
本对比例4与实施例2的不同之处在于,改性水刺无纺布中粘胶纤维占粘胶纤维和涤纶纤维质量之和的百分数为60%,除此之外均与实施例2相同。
对比例5
本对比例5与实施例1的不同之处在于,步骤(4)中,消毒液与改性水刺无纺布的结合方式为常规浸渍方式,改性水刺无纺布在消毒液中浸渍后包装即得,其中,用于浸渍的消毒液是循环重复使用的,除此之外均与实施例1相同。
对比例6
本对比例6与实施例2的不同之处在于,步骤(4)中,消毒液与改性水刺无纺布的结合方式为常规浸渍方式,改性水刺无纺布在消毒液中浸渍后包装即得,其中,用于浸渍的消毒液是循环重复使用的,除此之外均与实施例2相同。
对比例7
本对比例7与实施例3的不同之处在于,步骤(4)中,消毒液与改性水刺无纺布的结合方式为常规浸渍方式,改性水刺无纺布在消毒液中浸渍后包装即得,其中,用于浸渍的消毒液是循环重复使用的,除此之外均与实施例3相同。
对比例8
本对比例8与实施例1的不同之处在于,消毒液中不含脂肪醇聚氧乙烯醚AEO-9,除此之外均与实施例1相同。
对比例9
本对比例9与实施例2的不同之处在于,消毒液中不含烷基酚聚氧乙烯醚TX-9,除此之外均与实施例2相同。
对比例10
本对比例10与实施例2的不同之处在于,消毒液中不含正丙醇,除此之外均与实施例2相同。
对比例11
本对比例11与实施例2的不同之处在于,消毒液中不含聚三氟丙基甲基硅氧烷,除此之外均与实施例2相同。
性能测试
将实施例1~3和对比例1~7制备的消毒湿巾,依据WS 575-2017《卫生湿巾卫生要求》6.3的要求进行有效成分含量的测定,所得结果如表1所示。检测具体步骤如下:
(1)取足够量的卫生湿巾样品,打开外包装,戴无菌手套,将卫生湿巾中的液体挤至玻璃容器中;
(2)将消毒湿巾挤出液进行有效成分含量测试;
其中,12个月和24个月的测试结果,是按照GB/T 38499-2020《消毒剂稳定性评价方法》中加速试验的存放条件进行的等效替换;
阳离子杀菌剂即时下降率=挤出液中阳离子杀菌剂质量百分比/所用消毒液中的阳离子杀菌剂质量百分比×100%;
12个月后阳离子杀菌剂下降率=12个月后挤出液阳离子杀菌剂质量百分比/所用消毒液中的阳离子杀菌剂质量百分比×100%;
24个月后阳离子杀菌剂下降率=24个月后挤出液阳离子杀菌剂质量百分比/所用消毒液中的阳离子杀菌剂质量百分比×100%。
将实施例1和对比例8,实施例2和对比例11,分别对金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌和白色念珠菌进行杀菌率检测,结果分别如图5、6所示。检测方法按照GB15979-2002中附录C的方法。
将实施例2、对比例9和对比例10在室温,湿度50%实验室内分别用来擦拭304不锈钢片表面,待表面完全干燥后残痕如图7所示。
表1实施例1~3和对比例1~7杀菌效果测试表
从表1中数据可以看出,实施例2和对比例1~4进行对比,水刺无纺布未经有机硅梳理剂和阳离子中和剂中的一种或两种进行处理改性,所生产的消毒湿巾的杀菌效果随时间均有明显的下降,说明有机硅梳理剂和阳离子中和剂能够有效消除水刺无纺布中的阴离子物质,使消毒湿巾长时间保持良好的杀菌效果,同时说明有机硅梳理剂和阳离子中和剂二者共同作用才能达到最佳效果;对比例4中水刺无纺布粘胶纤维含量较实施例2高,对杀菌剂的损耗更高,因此阳离子杀菌剂即时下降率更高,说明选择水刺无纺布的成分中粘胶纤维和涤纶纤维的质量之和中粘胶纤维占比要在一定范围内。
对比例1和对比例2进行对比,未经阳离子中和剂处理的水刺无纺布对比未经有机硅梳理剂处理的水刺无纺布,所生产的消毒湿巾的杀菌效果随时间下降更为明显,说明阳离子中和剂在消除水刺无纺布的阴离子物质方面起主要作用。
实施例1和对比例5、实施例2和对比例6、实施例3和对比例7分别进行对比,说明消毒液循环使用的浸渍生产方式仍可造成阴离子物质的残留,从而对阳离子杀菌剂造成损耗,进而影响后续生产的消毒湿巾的杀菌效果。
从图3和图4中可以看出,实施例1消毒液中添加非离子表面活性剂,消毒湿巾纤维分布更加均匀,从图5中可以看出,实施例1杀菌效果较对比例8有明显提升,说明非离子表面活性剂通过降低界面的表面张力使杀菌剂更快、更均匀分布于微生物表面,强化了杀菌效果,其作用示意图如图2所示。
从图6可以看出,实施例2的杀菌效果要强于对比例11,这说明添加了聚三氟丙基甲基硅氧烷的消毒液,对湿巾的杀菌效果有较强的强化作用。
从图7可以看出,实施例2的残痕几乎消失,对比例9和10的残痕都较为明显,说明非离子表面活性剂和醇类的加入缺一不可,只有共同加入两种物质才能确保无残痕。
Claims (6)
1.一种强化杀菌效果的消毒湿巾,其特征在于,包括消毒液和作为消毒液载体的改性水刺无纺布;
改性水刺无纺布为在预润湿水和水刺水中均加入质量分数为0.02%~0.04%的阳离子中和剂和0.02%~0.04%的有机硅梳理剂生产的;
消毒液由以下质量百分比的原料制成:
非离子表面活性剂0.02%~0.20%,
阳离子杀菌剂0.10%~1.00%,
氟硅消泡剂0.05%~1.00%,
醇类5%~40%,
甘油0.10%~2.00%,
尿囊素0.05%~0.20%,
透明质酸0.05%~0.20%,
碱性调节剂0.01%~0.03%,
余量为去离子水;
阳离子中和剂为十六烷基三甲基溴化铵和十八烷基二甲基苄基氯化铵中的一种;
有机硅梳理剂为二甲基硅氧烷和甲基苯基硅油中的一种;
阳离子杀菌剂为葡萄糖酸氯己定、苯扎氯铵和二癸基二甲基氯化铵中的一种;
改性水刺无纺布包括粘胶纤维和涤纶纤维,其中粘胶纤维占粘胶纤维和涤纶纤维质量之和的百分数为30%~50%。
2.根据权利要求1所述的强化杀菌效果的消毒湿巾,其特征在于,非离子表面活性剂为脂肪醇聚氧乙烯醚、烷基酚聚氧乙烯醚和脂肪酸聚氧乙烯酯中的一种。
3.根据权利要求1所述的强化杀菌效果的消毒湿巾,其特征在于,氟硅消泡剂为聚三氟丙基甲基硅氧烷。
4.根据权利要求1所述的强化杀菌效果的消毒湿巾,其特征在于,醇类为乙醇、正丙醇和异丙醇中的一种。
5.根据权利要求1所述的强化杀菌效果的消毒湿巾,其特征在于,碱性调节剂为氢氧化钠、氢氧化钾、三乙醇胺中的一种。
6.一种权利要求1~5所述的强化杀菌效果的消毒湿巾的制备方法,其特征在于,包括如下步骤:
(1)在反应釜中加入去离子水、醇类和非离子表面活性剂;
(2)向反应釜中加入阳离子杀菌剂和氟硅消泡剂;
(3)向反应釜中加入甘油、尿囊素、透明质酸和碱性调节剂,得到消毒液;
(4)向改性水刺无纺布上喷洒消毒液,使消毒液被改性水刺无纺布吸收而附着于其上,包装后即得。
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