CN111424376A - 用于口罩的超纤抗菌无纺布及其制造方法和应用 - Google Patents
用于口罩的超纤抗菌无纺布及其制造方法和应用 Download PDFInfo
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- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
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- A—HUMAN NECESSITIES
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- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
- A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
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- D01D5/00—Formation of filaments, threads, or the like
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- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
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- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
- D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
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- D04H3/147—Composite yarns or filaments
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
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Abstract
本发明提供了一种用于口罩的超纤抗菌无纺布及其制造方法和应用,本发明以PET和聚酰胺‑6或者PET和聚丙烯为原料,经过熔融、组件分配、挤出冷却、牵伸、铺网、水刺等工艺,首先形成双组份中空橘瓣超细纤维的基布,然后对基布进行开纤、拒水处理以及添加静电处理,得到超纤抗菌无纺布;最后经过分切和复合制成口罩,本发明解决了目前熔喷无纺布无替代品的难题。此外,本发明通过充分开纤,使无纺布内部结构更为均匀,提升了材料的柔软舒适度,使佩戴者佩戴更加舒服,在对双组份中空橘瓣超细纤维的基布进行充分开纤的基础上,通过拒水处理和添加静电处理,能够有效提升材料的吸附功能,增强了过滤效率,长时间使用下,也不会因湿气导致过滤效率降低。
Description
技术领域
本发明涉及无纺布材料技术领域,特别是涉及一种用于口罩的超纤抗菌无纺布及其制造方法和应用。
背景技术
熔喷无纺布是口罩中的过滤材料,目前,我国生产熔喷无纺布的生产线只有60多条,日产能近70吨(可制成口罩7000万余片),目前,尚无替代材料,导致熔喷无纺布成为制约口罩生产的主要瓶颈。
熔喷无纺布的原料为聚丙烯,但以聚丙烯为原料的熔喷无纺布,佩戴舒适性差,且在后道灭菌及辐照处理环节,会引起降解老化等问题,加上其材料本身的疏水特性,长时间使用后,湿气会导致过滤效率降低。
发明内容
鉴于上述状况,本发明的目的在于提供一种用于口罩的超纤抗菌无纺布及其制造方法和应用,以实现现有熔喷无纺布的替代,且解决目前口罩佩戴舒适性差、长时间佩戴后过滤效率降低的问题。
本发明的技术方案为:
一种用于口罩的超纤抗菌无纺布的制造方法,包括以下步骤:
步骤1,准备原料,原料为PET和聚酰胺-6,或者PET和聚丙烯;
步骤2,对原料中各组分分别进行干燥;
步骤3,将干燥后的各组分分别送入螺杆,分段逐渐升温加热,使原料熔融,并排除空气,经过滤网过滤异物后稳定的进入熔体管道;
步骤4,熔融的各组分按比例通过计量泵后进入纺丝组件,在纺丝组件内的通道内混合、流动、分配,最终汇集成熔体细流,从喷丝孔挤出;
步骤5,喷丝板挤出的熔体细流,在侧吹风的作用下逐渐冷却凝固;
步骤6,冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到预设值;
步骤7,从水刺头的高压腔体***出的高压水针直接作用在纤网表面,将表面纤维刺入内部,经过托网帘的反弹作用将反面的纤维刺回,使纤维间相互缠结抱合,使蓬松纤网形成基布;
步骤8,将基布烘干;
步骤9,将烘干后的基布放入碱溶液中进行水洗开纤;
步骤10,对开纤后的基布进行后整理,后整理至少包括拒水处理,拒水处理为将基布浸泡在含有高分子氟化物的溶液中;
步骤11,将基布烘干;
步骤12,对烘干后的基布进行添加静电处理,得到超纤抗菌无纺布。
本发明还提供了一种用于口罩的超纤抗菌无纺布,其由上述制造方法制造得到。
本发明还提供了上述超纤抗菌无纺布的应用,将所述超纤抗菌无纺布进行分切,然后将分切后的超纤抗菌无纺布与两层纺粘布复合以制成口罩。
根据本发明提供的用于口罩的超纤抗菌无纺布及其制造方法和应用,以PET和聚酰胺-6或者PET和聚丙烯为原料,经过熔融、组件分配、挤出冷却、牵伸、铺网、水刺等工艺,首先形成双组份中空橘瓣超细纤维的基布,然后对基布进行开纤,在碱溶液中,利用PET和聚酰胺-6(或聚丙烯)不同的热收缩、强力和抗拉伸性能,使PET与聚酰胺-6(或聚丙烯)能够更好的分离,达到充分开纤的效果,解决水刺物理开纤的不足;同时碱液具有一定的腐蚀作用,使PET纤维的表面变得粗超,且微观上纤维表面出现部分开叉和***,进一步增加纤维的比表面积,使无纺布内部结构更为均匀,增加其导水功能,开纤后,通过高分子氟化物对无纺布进行后整理,能够在纤维均匀附加上一层氟化物高分子膜,在烘干过程中使纤维带有少量电荷,之后再对基布进行添加静电处理,进一步添加静电荷,添加静电荷的无纺布对颗粒物和细菌可产生静电吸附功能,提高细菌和颗粒物的过滤效率,经检验机构测试,该方法制造的超纤抗菌无纺布,其过滤效率能够达到90.6以上,符合GB/T32610-2016“日常防护型口罩”技术标准要求,解决了目前熔喷无纺布无替代品的难题。本发明通过充分开纤,提升了材料的柔软舒适度,使佩戴者佩戴更加舒服,在对双组份中空橘瓣超细纤维的基布进行充分开纤的基础上,通过拒水处理和添加静电处理,能够有效提升材料的吸附功能,增强了过滤效率,长时间使用下,也不会因湿气导致过滤效率降低。
此外,本发明提供的用于口罩的超纤抗菌无纺布的制造方法,还具有以下技术特征:
进一步的,当原料为PET和聚酰胺-6时,步骤4中,原料中各组分的混合比例为:60%的PET和40%的聚酰胺-6;
当原料为PET和聚丙烯时,步骤4中,原料中各组分的混合比例为:40%的PET和60%的聚丙烯。
进一步的,步骤9具体为:
将基布放入浓度为0.5%的碱溶液中,在100℃下水洗2~4次。
进一步的,步骤10中,拒水处理具体为:
将基布浸泡在浓度为1.5%高分子氟化物溶液中,在100℃下水洗2~4次。
进一步的,步骤6具体为:
冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到2.4D~2.8D。
进一步的,步骤12具体为:
对烘干后的基布外加高压电场,使基布添加静电荷。
进一步的,步骤10中,后整理还包括阻燃处理,阻燃处理为将基布浸泡在含有阻燃剂的溶液中。
进一步的,高分子氟化物为聚四氟乙烯。
进一步的,碱溶液为NaOH溶液。
进一步的,步骤2具体为:
将聚酰胺-6通过110℃的热压缩空气除湿,使其达到含水率100PPm以下,将PET通过170℃的热压缩空气干燥后结晶,使其达到含水率30PPm以下;
或者;
将聚丙烯通过110℃的热压缩空气除湿,使其达到含水率100PPm以下,将PET通过170℃的热压缩空气干燥后结晶,使其达到含水率30PPm以下。
具体实施方式
为了便于理解本发明,下面将参照各实施例对本发明进行更全面的描述。本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容更加透彻全面。
本发明的实施方式提出一种用于口罩的超纤抗菌无纺布的制造方法,包括以下步骤:
步骤1,准备原料,原料为PET和聚酰胺-6,或者PET和聚丙烯;
步骤2,对原料中各组分分别进行干燥;
步骤3,将干燥后的各组分分别送入螺杆,分段逐渐升温加热,使原料熔融,并排除空气,经过滤网过滤异物后稳定的进入熔体管道;
步骤4,熔融的各组分按比例通过计量泵后进入纺丝组件,在纺丝组件内的通道内混合、流动、分配,最终汇集成熔体细流,从喷丝孔挤出;
步骤5,喷丝板挤出的熔体细流,在侧吹风的作用下逐渐冷却凝固;
步骤6,冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到预设值;
步骤7,从水刺头的高压腔体***出的高压水针直接作用在纤网表面,将表面纤维刺入内部,经过托网帘的反弹作用将反面的纤维刺回,使纤维间相互缠结抱合,使蓬松纤网形成基布;
步骤8,将基布烘干;
步骤9,将烘干后的基布放入碱溶液中进行水洗开纤;
步骤10,对开纤后的基布进行后整理,后整理至少包括拒水处理,拒水处理为将基布浸泡在含有高分子氟化物的溶液中;
步骤11,将基布烘干;
步骤12,对烘干后的基布进行添加静电处理,得到超纤抗菌无纺布。
下面分多个实施例对本发明实施例进行进一步的说明。本发明实施例不限定于以下的具体实施例。在不变主权利的范围内,可以适当的进行变更实施。
实施例1:
一种用于口罩的超纤抗菌无纺布的制造方法,包括以下步骤:
步骤1,准备原料PET和聚酰胺-6(即PA-6);
步骤2,对原料中各组分分别进行干燥,其中,将聚酰胺-6通过110℃的热压缩空气除湿,使其达到含水率100PPm以下,将PET通过170℃的热压缩空气干燥后结晶,使其达到含水率30PPm以下;
步骤3,将干燥后的各组分分别送入螺杆,分段逐渐升温加热,使原料熔融,并排除空气,经过滤网过滤异物后稳定的进入熔体管道;
步骤4,熔融的各组分按比例(混合比例为:60%的PET和40%的聚酰胺-6)通过计量泵后进入纺丝组件,在纺丝组件内的通道内混合、流动、分配,最终汇集成熔体细流,从喷丝孔挤出;
步骤5,喷丝板挤出的熔体细流,在侧吹风的作用下逐渐冷却凝固;
步骤6,冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到2.4D~2.8D;
步骤7,从水刺头的高压腔体***出的高压水针直接作用在纤网表面,将表面纤维刺入内部,经过托网帘的反弹作用将反面的纤维刺回,使纤维间相互缠结抱合,使蓬松纤网形成基布;
步骤8,将基布烘干;
步骤9,将烘干后的基布放入碱溶液中进行水洗开纤,具体将基布放入浓度为0.5%的NaOH溶液中,在100℃下水洗2~4次;
步骤10,对开纤后的基布进行后整理,后整理包括拒水处理和阻燃处理,拒水处理为将基布浸泡在含有高分子氟化物的溶液中,具体将基布浸泡在浓度为1.5%聚四氟乙烯溶液中,在100℃下水洗2~4次,将基布压干后,再将基布浸泡在含有阻燃剂的溶液中进行阻燃处理;
步骤11,将基布烘干;
步骤12,对烘干后的基布外加高压电场以进行添加静电处理,使基布添加静电荷,得到超纤抗菌无纺布。
得到超纤抗菌无纺布之后,将超纤抗菌无纺布进行分切,然后将分切后的超纤抗菌无纺布与两层纺粘布复合即可制成口罩,超纤抗菌无纺布位于两层纺粘布之间。
本实施例中,将得到的超纤抗菌无纺布送交上海纺织集团检测标准有限公司进行检测,检测结果如下:
本实施例中,将得到的超纤抗菌无纺布送交通用标准技术服务有限公司(SGS)进行检测,检测结果如下:
本实施例还进行了对比验证,将步骤8得到的基布(未经开纤和后整理的处理)送交上海纺织集团检测标准有限公司进行检测,检测结果如下:
将步骤8得到的基布送交通用标准技术服务有限公司(SGS)进行检测,检测结果如下:
对比验证表明,经过开纤和后整理的处理的超纤抗菌无纺布,其各项性能明显优于未经开纤和后整理处理的超纤抗菌无纺布,经过开纤和后整理的处理的超纤抗菌无纺布才能满足上述测试要求。
实施例2:
一种用于口罩的超纤抗菌无纺布的制造方法,包括以下步骤:
步骤1,准备原料PET和聚丙烯(即PP);
步骤2,对原料中各组分分别进行干燥,其中,将聚丙烯通过110℃的热压缩空气除湿,使其达到含水率100PPm以下,将PET通过170℃的热压缩空气干燥后结晶,使其达到含水率30PPm以下;
步骤3,将干燥后的各组分分别送入螺杆,分段逐渐升温加热,使原料熔融,并排除空气,经过滤网过滤异物后稳定的进入熔体管道;
步骤4,熔融的各组分按比例(混合比例为:40%的PET和60%的聚丙烯)通过计量泵后进入纺丝组件,在纺丝组件内的通道内混合、流动、分配,最终汇集成熔体细流,从喷丝孔挤出;
步骤5,喷丝板挤出的熔体细流,在侧吹风的作用下逐渐冷却凝固;
步骤6,冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到2.4D~2.8D;
步骤7,从水刺头的高压腔体***出的高压水针直接作用在纤网表面,将表面纤维刺入内部,经过托网帘的反弹作用将反面的纤维刺回,使纤维间相互缠结抱合,使蓬松纤网形成基布;
步骤8,将基布烘干;
步骤9,将烘干后的基布放入碱溶液中进行水洗开纤,具体将基布放入浓度为0.5%的NaOH溶液中,在100℃下水洗2~4次;
步骤10,对开纤后的基布进行后整理,后整理包括拒水处理和阻燃处理,拒水处理为将基布浸泡在含有高分子氟化物的溶液中,具体将基布浸泡在浓度为1.5%聚四氟乙烯溶液中,在100℃下水洗2~4次,将基布压干后,再将基布浸泡在含有阻燃剂的溶液中进行阻燃处理;
步骤11,将基布烘干;
步骤12,对烘干后的基布外加高压电场以进行添加静电处理,使基布添加静电荷,得到超纤抗菌无纺布;
得到超纤抗菌无纺布之后,将超纤抗菌无纺布进行分切,然后将分切后的超纤抗菌无纺布与两层纺粘布复合即可制成口罩,超纤抗菌无纺布位于两层纺粘布之间。
本实施例中,将得到的超纤抗菌无纺布送交上海纺织集团检测标准有限公司进行检测,检测结果如下:
本实施例中,将分切后得到的超纤抗菌无纺布送交通用标准技术服务有限公司(SGS)进行检测,检测结果如下:
本实施例还进行了对比验证,将步骤8得到的基布(未经开纤和后整理的处理)送交上海纺织集团检测标准有限公司进行检测,检测结果如下:
将步骤8得到的基布送交通用标准技术服务有限公司(SGS)进行检测,检测结果如下:
对比验证表明,经过开纤和后整理的处理的超纤抗菌无纺布,其各项性能明显优于未经开纤和后整理处理的超纤抗菌无纺布,经过开纤和后整理的处理的超纤抗菌无纺布才能满足上述测试要求。
综上,根据本发明提供的用于口罩的超纤抗菌无纺布及其制造方法和应用,以PET和聚酰胺-6或者PET和聚丙烯为原料,经过熔融、组件分配、挤出冷却、牵伸、铺网、水刺等工艺,首先形成双组份中空橘瓣超细纤维的基布,然后对基布进行开纤,在碱溶液中,利用PET和聚酰胺-6(或聚丙烯)不同的热收缩、强力和抗拉伸性能,使PET与聚酰胺-6(或聚丙烯)能够更好的分离,达到充分开纤的效果,解决水刺物理开纤的不足;同时碱液具有一定的腐蚀作用,使PET纤维的表面变得粗超,且微观上纤维表面出现部分开叉和***,进一步增加纤维的比表面积,使无纺布内部结构更为均匀,增加其导水功能,开纤后,通过高分子氟化物对无纺布进行后整理,能够在纤维均匀附加上一层氟化物高分子膜,在烘干过程中使纤维带有少量电荷,之后再对基布进行添加静电处理,进一步添加静电荷,添加静电荷的无纺布对颗粒物和细菌可产生静电吸附功能,提高细菌和颗粒物的过滤效率,经检验机构测试,该方法制造的超纤抗菌无纺布,其过滤效率能够达到90.6以上,符合GB/T32610-2016“日常防护型口罩”技术标准要求,解决了目前熔喷无纺布无替代品的难题。本发明通过充分开纤,提升了材料的柔软舒适度,使佩戴者佩戴更加舒服,在对双组份中空橘瓣超细纤维的基布进行充分开纤的基础上,通过拒水处理和添加静电处理,能够有效提升材料的吸附功能,增强了过滤效率,长时间使用下,也不会因湿气导致过滤效率降低。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (10)
1.一种用于口罩的超纤抗菌无纺布的制造方法,其特征在于,包括以下步骤:
步骤1,准备原料,原料为PET和聚酰胺-6,或者PET和聚丙烯;
步骤2,对原料中各组分分别进行干燥;
步骤3,将干燥后的各组分分别送入螺杆,分段逐渐升温加热,使原料熔融,并排除空气,经过滤网过滤异物后稳定的进入熔体管道;
步骤4,熔融的各组分按比例通过计量泵后进入纺丝组件,在纺丝组件内的通道内混合、流动、分配,最终汇集成熔体细流,从喷丝孔挤出;
步骤5,喷丝板挤出的熔体细流,在侧吹风的作用下逐渐冷却凝固;
步骤6,冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到预设值;
步骤7,从水刺头的高压腔体***出的高压水针直接作用在纤网表面,将表面纤维刺入内部,经过托网帘的反弹作用将反面的纤维刺回,使纤维间相互缠结抱合,使蓬松纤网形成基布;
步骤8,将基布烘干;
步骤9,将烘干后的基布放入碱溶液中进行水洗开纤;
步骤10,对开纤后的基布进行后整理,后整理至少包括拒水处理,拒水处理为将基布浸泡在含有高分子氟化物的溶液中;
步骤11,将基布烘干;
步骤12,对烘干后的基布进行添加静电处理,得到超纤抗菌无纺布。
2.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,当原料为PET和聚酰胺-6时,步骤4中,原料中各组分的混合比例为:60%的PET和40%的聚酰胺-6;
当原料为PET和聚丙烯时,步骤4中,原料中各组分的混合比例为:40%的PET和60%的聚丙烯。
3.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,步骤9具体为:
将基布放入浓度为0.5%的碱溶液中,在100℃下水洗2~4次。
4.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,步骤10中,拒水处理具体为:
将基布浸泡在浓度为1.5%高分子氟化物溶液中,在100℃下水洗2~4次。
5.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,步骤6具体为:
冷却过的丝束通过压缩空气填充的牵伸管,在高速风的带动下牵伸拉长变细,直至细度达到2.4D~2.8D。
6.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,步骤12具体为:
对烘干后的基布外加高压电场,使基布添加静电荷。
7.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,步骤10中,后整理还包括阻燃处理,阻燃处理为将基布浸泡在含有阻燃剂的溶液中。
8.根据权利要求1所述的用于口罩的超纤抗菌无纺布的制造方法,其特征在于,步骤2具体为:
将聚酰胺-6通过110℃的热压缩空气除湿,使其达到含水率100PPm以下,将PET通过170℃的热压缩空气干燥后结晶,使其达到含水率30PPm以下;
或者;
将聚丙烯通过110℃的热压缩空气除湿,使其达到含水率100PPm以下,将PET通过170℃的热压缩空气干燥后结晶,使其达到含水率30PPm以下。
9.一种用于口罩的超纤抗菌无纺布,其特征在于,所述超纤抗菌无纺布由权利要求1至8任一项所述的制造方法制造得到。
10.权利要求9所述的超纤抗菌无纺布的应用,其特征在于,将所述超纤抗菌无纺布进行分切,然后将分切后的超纤抗菌无纺布与两层纺粘布复合以制成口罩。
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CN113445152A (zh) * | 2021-04-23 | 2021-09-28 | 成都产品质量检验研究院有限责任公司 | 一种基于定岛超纤改性制备压电抗菌口罩滤材的方法 |
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