CN107386011A - 一种多层医疗专用透析纸原纸及其加工方法 - Google Patents
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Abstract
本发明公开了一种多层医疗专用透析纸原纸的加工方法,所述原纸由至少一层表层、中间层、底层和胶黏剂层组成,其中表层由无碱短切玻璃纤维于针叶木纤维配抄而成,中间层由无碱短切玻璃纤维与中空硅藻土矿物纤维配抄而成,底层由针叶木纤维、马尼拉麻纤维和1414芳纶短切纤维配抄而成,经后处理制得多层医疗专用透析纸原纸。本发明多层医疗专用透析纸原纸的加工方法通过选取提升医疗透析纸强度的骨架玻璃纤维与针叶木浆、以及具有天然无菌的麻纤维和隔热隔电的芳纶纤维抄造而成,大大提升成纸韧性、强度和无菌等级,显著提升了国产医疗专用透析纸原纸的品质和等级,减少了使用过程中透析纸品质不合格造成的医疗事故,具有较高的使用潜力和价值。
Description
技术领域
本发明涉及造纸技术领域,具体涉及一种多层医疗专用透析纸原纸及其加工方法。
背景技术
医疗专用透析纸作为一种医用的高端特种纸材,其在部分病症的治疗以及医用仪器设备的包装等过程中发挥着不可或缺的关键作用,然而由于国外进口透析纸的价格高昂,而国产透析纸的性能难以达标,使得高端透析纸行业在国内一直面临供给严重小于需求的情况,这也使得低质量透析纸在因性能问题常常在治疗过程中产生隐患甚至造成医疗事故。基于上述缺陷,本发明多层医疗专用透析纸原纸的加工方法通过选取提升医疗透析纸强度的骨架玻璃纤维与针叶木浆、以及具有天然无菌的麻纤维和隔热隔电的芳纶纤维抄造而成,大大提升成纸韧性、强度和无菌等级,显著提升了国产医疗专用透析纸原纸的品质和等级,减少了使用过程中透析纸品质不合格造成的医疗事故,具有较高的使用潜力和价值。
发明内容
本发明的目的是为了克服现有技术中透析纸的缺陷,提供一种多层医疗专用透析纸原纸及其加工方法,通过选取提升医疗透析纸强度的骨架玻璃纤维与针叶木浆、以及具有天然无菌的麻纤维和隔热隔电的芳纶纤维抄造而成,大大提升成纸韧性、强度和无菌等级,显著提升了国产医疗专用透析纸原纸的品质和等级,减少了使用过程中透析纸品质不合格造成的医疗事故,具有较高的使用潜力和价值。
本发明的目的通过以下技术方案来实现:一种多层医疗专用透析纸原纸的加工方法,其特征在于,所述原纸由至少一层表层、中间层、底层和胶黏剂层组成,包括以下步骤:
(1)表层:将针叶木漂白杀菌硫酸盐浆板碎浆后在槽式打浆机中进行打浆,控制打浆度为22-28°SR,随后将长度为2.0-6.5mm,直径为6-10微米的无碱短切玻璃纤维与前述针叶木纤维以(65-85):(15-35)的配比在圆网纸机上进行混合后抄造得到表层;
(2)中间层:将长度为3.5-7.0mm,直径为4-8微米的无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照(45-55):(45-55)的比例混合均匀,随后于斜网纸机中抄造得到中间层;
(3)底层:将针叶木漂白杀菌硫酸盐浆板碎浆后在双盘磨中进行磨浆,进浆浓度控制为8.0-11.5%,控制打浆度为40-48°SR;将马尼拉麻纤维打浆至 30-35°SR;将1414芳纶短切纤维在荷兰式打浆机中进行打浆,控制游离度为 400-480ml;按照针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=(45-60): (20-30):(10-20)的比例将其混合均匀后在长网纸机上抄造得到底层;
(4)复合:将表层湿纸幅、中间层湿纸幅与底层湿纸幅借助辊压复合形成透析纸纸层,且三层绝干质量比为表层:中间层:底层=(35-50):(20-40): (10-25);
(5)在透析纸纸层中底层一侧施加胶黏剂层,经烘干部、压光、卷取、分切制得多层医疗专用透析纸原纸。
步骤(1)中表层由上层第一表层与下层第二表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层。
步骤(1)中表层由上层第一表层、中层第二表层与下层第三表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层,第二表层中无碱短切玻璃纤维的直径则大于第三表层。
步骤(2)中所述无碱短切玻璃纤维的长度大于步骤(1),但直径小于步骤(1)。
步骤(2)无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照55: 45的比例混合均匀。
步骤(3)中所述针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=55: 30:15。
步骤(4)中所述三层绝干质量比为表层:中间层:底层=48:35:17。
步骤(5)中所述压光操作中使用纸粕辊在5-7MPa下进行软压光。
步骤(5)中所述胶黏剂层由聚乳酸和无菌天然胶乳按照(1-2.5):(3-6) 比例配制而成。
制得的多层医疗专用透析纸原纸的定量为55-80g/m2,抗张指数达 130-136.5N·m/g,过滤精度达到99.95%以上,环保性能符合国际国内标准。
本发明与现有技术相比具有以下的优点:本发明多层医疗专用透析纸原纸的加工方法通过选取提升医疗透析纸强度的骨架玻璃纤维与针叶木浆、以及具有天然无菌的麻纤维和隔热隔电的芳纶纤维抄造而成,大大提升成纸韧性、强度和无菌等级,显著提升了国产医疗专用透析纸原纸的品质和等级,减少了使用过程中透析纸品质不合格造成的医疗事故,具有较高的使用潜力和价值。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
一种多层医疗专用透析纸原纸的加工方法,其特征在于,所述原纸由至少一层表层、中间层、底层和胶黏剂层组成,包括以下步骤:
(1)表层:将针叶木漂白杀菌硫酸盐浆板碎浆后在槽式打浆机中进行打浆,控制打浆度为22-28°SR,随后将长度为2.0-6.5mm,直径为6-10微米的无碱短切玻璃纤维与前述针叶木纤维以(65-85):(15-35)的配比在圆网纸机上进行混合后抄造得到表层;
(2)中间层:将长度为3.5-7.0mm,直径为4-8微米的无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照(45-55):(45-55)的比例混合均匀,随后于斜网纸机中抄造得到中间层;
(3)底层:将针叶木漂白杀菌硫酸盐浆板碎浆后在双盘磨中进行磨浆,进浆浓度控制为8.0-11.5%,控制打浆度为40-48°SR;将马尼拉麻纤维打浆至 30-35°SR;将1414芳纶短切纤维在荷兰式打浆机中进行打浆,控制游离度为 400-480ml;按照针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=(45-60): (20-30):(10-20)的比例将其混合均匀后在长网纸机上抄造得到底层;
(4)复合:将表层湿纸幅、中间层湿纸幅与底层湿纸幅借助辊压复合形成透析纸纸层,且三层绝干质量比为表层:中间层:底层=(35-50):(20-40): (10-25);
(5)在透析纸纸层中底层一侧施加胶黏剂层,经烘干部、压光、卷取、分切制得多层医疗专用透析纸原纸。
步骤(1)中表层由上层第一表层与下层第二表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层。
步骤(1)中表层由上层第一表层、中层第二表层与下层第三表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层,第二表层中无碱短切玻璃纤维的直径则大于第三表层。
步骤(2)中所述无碱短切玻璃纤维的长度大于步骤(1),但直径小于步骤(1)。
步骤(2)无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照55: 45的比例混合均匀。
步骤(3)中所述针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=55: 30:15。
步骤(4)中所述三层绝干质量比为表层:中间层:底层=48:35:17。
步骤(5)中所述压光操作中使用纸粕辊在5-7MPa下进行软压光。
步骤(5)中所述胶黏剂层由聚乳酸和无菌天然胶乳按照(1-2.5):(3-6) 比例配制而成。
制得的多层医疗专用透析纸原纸的定量为55-80g/m2,抗张指数达 130-136.5N·m/g,过滤精度达到99.95%以上,环保性能符合国际国内标准。
实施例1
一种多层医疗专用透析纸原纸的加工方法,其特征在于,所述原纸由至少一层表层、中间层、底层和胶黏剂层组成,包括以下步骤:
(1)表层:将针叶木漂白杀菌硫酸盐浆板碎浆后在槽式打浆机中进行打浆,控制打浆度为25°SR,随后将长度为4.5mm,直径为8微米的无碱短切玻璃纤维与前述针叶木纤维以80:20的配比在圆网纸机上进行混合后抄造得到表层;前述表层由上层第一表层与下层第二表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层;
(2)中间层:将长度为6.0mm,直径为5微米的无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照55:45的比例混合均匀,随后于斜网纸机中抄造得到中间层;
(3)底层:将针叶木漂白杀菌硫酸盐浆板碎浆后在双盘磨中进行磨浆,进浆浓度控制为10.0%,控制打浆度为43°SR;将马尼拉麻纤维打浆至35°SR;将1414芳纶短切纤维在荷兰式打浆机中进行打浆,控制游离度为420ml;按照针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=55:30:15的比例将其混合均匀后在长网纸机上抄造得到底层;
(4)复合:将表层湿纸幅、中间层湿纸幅与底层湿纸幅借助辊压复合形成透析纸纸层,且三层绝干质量比为表层:中间层:底层=48:35:17;
(5)在透析纸纸层中底层一侧施加胶黏剂层,经烘干部、压光、卷取、分切制得多层医疗专用透析纸原纸;所述压光操作中使用纸粕辊在6MPa下进行软压光;所述胶黏剂层由聚乳酸和无菌天然胶乳按照1:3比例配制而成。
制得的多层医疗专用透析纸原纸的定量为65g/m2,抗张指数达130.5N·m/g,过滤精度达到99.95%以上,环保性能符合国际国内标准。
实施例2
一种多层医疗专用透析纸原纸的加工方法,其特征在于,所述原纸由至少一层表层、中间层、底层和胶黏剂层组成,包括以下步骤:
(1)表层:将针叶木漂白杀菌硫酸盐浆板碎浆后在槽式打浆机中进行打浆,控制打浆度为26°SR,随后将长度为5.5mm,直径为7.5微米的无碱短切玻璃纤维与前述针叶木纤维以70:30的配比在圆网纸机上进行混合后抄造得到表层;表层由上层第一表层、中层第二表层与下层第三表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层,第二表层中无碱短切玻璃纤维的直径则大于第三表层;
(2)中间层:将长度为5.5mm,直径为5.5微米的无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照50:50的比例混合均匀,随后于斜网纸机中抄造得到中间层;
(3)底层:将针叶木漂白杀菌硫酸盐浆板碎浆后在双盘磨中进行磨浆,进浆浓度控制为8.0%,控制打浆度为45°SR;将马尼拉麻纤维打浆至33°SR;将1414芳纶短切纤维在荷兰式打浆机中进行打浆,控制游离度为460ml;按照针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=60:20:20的比例将其混合均匀后在长网纸机上抄造得到底层;
(4)复合:将表层湿纸幅、中间层湿纸幅与底层湿纸幅借助辊压复合形成透析纸纸层,且三层绝干质量比为表层:中间层:底层=50:30:20;
(5)在透析纸纸层中底层一侧施加胶黏剂层,经烘干部、压光、卷取、分切制得多层医疗专用透析纸原纸;所述压光操作中使用纸粕辊在5MPa下进行软压光;所述胶黏剂层由聚乳酸和无菌天然胶乳按照2:5比例配制而成。
制得的多层医疗专用透析纸原纸的定量为68g/m2,抗张指数达135N·m/g,过滤精度达到99.95%以上,环保性能符合国际国内标准。
上述实施方式仅为本发明较佳的技术方案,其他的任何未背离本发明的精神实质与作用原理下所作的改变、修饰、替代、组合、简化,均应为等效的替换方式,都包含在本发明的保护范围之内。
Claims (10)
1.一种多层医疗专用透析纸原纸的加工方法,其特征在于,所述原纸由至少一层表层、中间层、底层和胶黏剂层组成,包括以下步骤:
(1)表层:将针叶木漂白杀菌硫酸盐浆板碎浆后在槽式打浆机中进行打浆,控制打浆度为22-28°SR,随后将长度为2.0-6.5mm,直径为6-10微米的无碱短切玻璃纤维与前述针叶木纤维以(65-85):(15-35)的配比在圆网纸机上进行混合后抄造得到表层;
(2)中间层:将长度为3.5-7.0mm,直径为4-8微米的无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照(45-55):(45-55)的比例混合均匀,随后于斜网纸机中抄造得到中间层;
(3)底层:将针叶木漂白杀菌硫酸盐浆板碎浆后在双盘磨中进行磨浆,进浆浓度控制为8.0-11.5%,控制打浆度为40-48°SR;将马尼拉麻纤维打浆至30-35°SR;将1414芳纶短切纤维在荷兰式打浆机中进行打浆,控制游离度为400-480ml;按照针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=(45-60):(20-30):(10-20)的比例将其混合均匀后在长网纸机上抄造得到底层;
(4)复合:将表层湿纸幅、中间层湿纸幅与底层湿纸幅借助辊压复合形成透析纸纸层,且三层绝干质量比为表层:中间层:底层=(35-50):(20-40):(10-25);
(5)在透析纸纸层中底层一侧施加胶黏剂层,经烘干部、压光、卷取、分切制得多层医疗专用透析纸原纸。
2.根据权利要求所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于步骤(1)中表层由上层第一表层与下层第二表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层。
3.根据权利要求1所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于步骤(1)中表层由上层第一表层、中层第二表层与下层第三表层组成,且第一表层中无碱短切玻璃纤维的直径大于第二表层,第二表层中无碱短切玻璃纤维的直径则大于第三表层。
4.根据权利要求1所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于步骤(2)中所述无碱短切玻璃纤维的长度大于步骤(1),但直径小于步骤(1)。
5.根据权利要求1所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于步骤(2)无碱短切玻璃纤维与中空硅藻土矿物纤维杀菌后按照约55:45的比例混合均匀。
6.根据权利要求1所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于步骤(3)中所述针叶木纤维:马尼拉麻纤维:1414芳纶短切纤维=55:30:15。
7.根据权利要求1所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于步骤(4)中所述三层绝干质量比为表层:中间层:底层=48:35:17。
8.根据权利要求1所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于,步骤(5)中所述压光操作中使用纸粕辊在5-7MPa下进行软压光,步骤(5)中所述胶黏剂层由聚乳酸和无菌天然胶乳按照(1-2.5):(3-6)比例配制而成。
9.根据权利要求1-8所述的一种多层医疗专用透析纸原纸的加工方法,其特征在于制得的多层医疗专用透析纸原纸的定量为55-80g/m2,抗张指数达130-136.5N·m/g,过滤精度达到99.95%以上,环保性能符合国际、国内标准。
10.一种根据权利要求1-9任一方法生产得到的多层医疗专用透析纸原纸。
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