CN106436466B - 一种纯木浆细纹吸水纸的制备工艺 - Google Patents
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Abstract
本发明涉及一种纯木浆细纹吸水纸的制备工艺,包括以下步骤:将北木50%和虹鱼50%混合碎浆,碎浆后打浆,打浆度控制在23±3度;打浆后的浆料储存在成浆池内,配浆时先后加入干强剂、湿强剂、柔软剂;配好的浆泵送到流送系统,经过稀释、筛选后再由二次冲浆泵稀释到0.04%的浓度打到等压布浆器中,然后在斜网纸机中脱水成型;成型后的湿纸页再经过压榨和大缸烘干,干度达到70‑90%时利用起皱装置进行起皱,起皱刮刀采用陶瓷刮刀,起皱后的纸再经过大缸烘干,最后卷取、分切得到成品吸水纸。本发明制备的吸水纸吸水性好而且湿强高,纸张浸湿后不容易破损,适用于日常生活中的清洁擦拭。
Description
技术领域
本发明属于造纸技术领域,具体地说一种纯木浆细纹吸水纸的制备工艺。
背景技术
吸水纸是一款生活类用纸,目前市场上纯木浆类的吸水纸有普通卫生纸,但是卫生纸吸水量有限且强度差,特别是纸张浸湿后非常容易破损,会残留在被擦物上。传统的湿巾纸是使用无纺布材料生产的,这种湿巾纸不容易降解,没有纯木浆材料环保,而且湿巾纸手感滑腻,擦试完后容易挂丝,会给使用者带来极大的不便。
发明内容
本发明所要解决的技术问题是提供一种纯木浆细纹吸水纸的制备工艺,在保持纸张柔软的前提下,提高了纸张的干强和湿强,从而使纸张比传统生活用纸更适合日常生活中的清洁擦拭。
为解决上述问题,本发明的技术方案是:一种纯木浆细纹吸水纸的制备工艺,包括以下步骤:(1)将北木50%和虹鱼50%混合碎浆,碎浆后经过疏解机疏解和盘磨打浆,打浆度控制在23±3度,湿重19±1g;
(2)打浆后的浆料储存在成浆池内,进行配浆,配浆时先添加干强剂,用量5-15Kg/吨纸;然后再添加湿强剂,用量40-50Kg/吨纸;最后添加柔软剂,用量5-15Kg/吨纸,均在常温下加入;
(3)将上述配好的浆料泵送到流送系统,经过稀释、筛选后再由二次冲浆泵稀释到0.04%的浓度打到等压布浆器中,然后在斜网纸机中脱水成型;
(4)成型后的湿纸页再经过压榨和大缸烘干,干度达到70-90%时利用起皱装置进行起皱,起皱后的纸再经过大缸烘干,最后卷取、分切得到成品吸水纸。
制浆工艺选用柔软型的长纤维(虹鱼、北木),碎浆后经过疏解机疏解和盘磨打浆,打浆度控制在23±3度,湿重19±1g,确保纸张手感柔软;
配浆必须按照本发明所公开的先添加干强剂,用量5-15Kg/吨纸,确保纸张的抗张强度,使纸张不易破损,不会掉纸毛;再添加湿强剂,用量40-50Kg/吨纸,为纸张提供较高的湿强度,使纸张浸湿后还能保持较高的强度;最后添加柔软剂,用量5-15Kg/吨纸,改善纸张柔软性,均在常温下加入;
传统吸水纸在长网纸机上生产,产品的匀度和柔软性不如斜网纸机生产的吸水纸。斜网纸机上网浓度低,有利于长纤维在低浆度的情况下脱水成型,而且成型匀度很好。
进一步地,所述步骤(4)湿纸页在压榨时,压榨部线压力控制在50-60KN/m,其中托辊线压力控制在25-30KN/m(托辊线位于大缸底下),以提高吸水纸的透气性和吸水性。
进一步地,所述的起皱刮刀采用陶瓷细纹刮刀,所述起皱装置的起皱刮刀刀架角度为25°,陶瓷刮刀角度为75°。
起皱刮刀选用陶瓷细纹刮刀,可以确保纸张纹路细密均匀,同时伸长率做到10-15%,使得纸张柔软有韧性,同时提高纸张的吸水量;
并且起皱刮刀刀架角度、刮刀角度设为上述角度后,得到的纸张纹路细密,清晰,而且对刮刀的磨损较小。
进一步地,步骤(4)中,起皱方式采用半干法起皱。起皱方式采用半干法起皱,起皱后纹路细密柔软,一般美纹纸、皱纹医保纸是用湿法起皱,起皱纹路较粗,纸张硬挺。一般卫生纸起皱为干法起皱,起皱纹路不够清晰,纸张容易掉粉掉毛。
进一步地,所述大缸烘干时的温度控制在64-66度,出大缸后的干度控制在95-97%。
一种湿巾纸,以上述制作而成的成品吸水纸为原料,按照常规生产工艺进行制造。
本发明的吸水纸各项技术参数是非常重要的,必须采用上述公开的技术方案进行制备,才能在纸张的柔软度、抗张强度、湿强度达到高度优化。且通过本发明制备的吸水纸有以下优点:其一,纯木浆纤维生产的吸水纸经济环保;其二,纸张手感柔软用于擦拭不会损伤被擦物;其三,纸张干强和湿强较高不容易破损,特别是纸张吸水后还能保持完整性;其四,纸张吸水性好擦拭时能将残留水渍清洁干净,且不残留纸毛纸屑,增加使用者的使用舒适感。本发明的吸水纸还可用于生产纯木浆湿巾,和无纺布湿巾比具有不挂丝,不掉毛的优点,湿巾可用于电子屏幕,工业器械,玻璃仪器,医疗器械表面的擦拭。
具体实施方式
北木、虹鱼为木浆的品牌名称。
实施例一:
一种纯木浆细纹吸水纸的制备工艺,包括以下步骤:(1)将北木50%和虹鱼50%混合碎浆,碎浆后经过疏解机疏解和盘磨打浆,打浆度控制在23度,湿重19g;
(2)打浆后的浆料储存在成浆池内,进行配浆,配浆时先添加干强剂,用量5Kg/吨纸;然后再添加湿强剂,用量40Kg/吨纸;最后添加柔软剂,用量10Kg/吨纸,均在常温下加入;
(3)将上述配好的浆料泵送到流送系统,经过稀释、筛选后再由二次冲浆泵稀释到0.04%的浓度打到等压布浆器中,然后在斜网纸机中脱水成型;
(4)成型后的湿纸页再经过压榨和大缸烘干,在压榨时,压榨部线压力控制在50KN/m,此时烘干干度达到70-90%时利用起皱装置进行起皱,起皱方式采用半干法起皱,起皱刮刀采用陶瓷细纹刮刀,所述起皱装置的起皱刮刀刀架角度为25°,陶瓷刮刀角度为75°,起皱后的纸再经过大缸烘干,大缸烘干时的温度控制在64-66°,出大缸后的干度控制在95-97%,最后卷取、分切得到成品吸水纸。
实施例二
一种纯木浆细纹吸水纸的制备工艺,包括以下步骤:(1)将北木50%和虹鱼50%混合碎浆,碎浆后经过疏解机疏解和盘磨打浆,打浆度控制在20度,湿重20g;
(2)打浆后的浆料储存在成浆池内,进行配浆,配浆时先添加干强剂,用量15Kg/吨纸;然后再添加湿强剂,用量45Kg/吨纸;最后添加柔软剂,用量15Kg/吨纸,均在常温下加入;
(3)将上述配好的浆料泵送到流送系统,经过稀释、筛选后再由二次冲浆泵稀释到0.04%的浓度打到等压布浆器中,然后在斜网纸机中脱水成型;
(4)成型后的湿纸页再经过压榨和大缸烘干,在压榨时,压榨部线压力控制在60KN/m,此时烘干干度达到70-90%时利用起皱装置进行起皱,起皱方式采用半干法起皱,起皱刮刀采用陶瓷细纹刮刀,所述起皱装置的起皱刮刀刀架角度为25°,陶瓷刮刀角度为75°,起皱后的纸再经过大缸烘干,大缸烘干时的温度控制在64-66°,出大缸后的干度控制在95-97%,最后卷取、分切得到成品吸水纸。
实施例三
一种纯木浆细纹吸水纸的制备工艺,包括以下步骤:(1)将北木50%和虹鱼50%混合碎浆,碎浆后经过疏解机疏解和盘磨打浆,打浆度控制在26度,湿重18g;
(2)打浆后的浆料储存在成浆池内,进行配浆,配浆时先添加干强剂,用量10Kg/吨纸;然后再添加湿强剂,用量50Kg/吨纸;最后添加柔软剂,用量5Kg/吨纸,均在常温下加入;
(3)将上述配好的浆料泵送到流送系统,经过稀释、筛选后再由二次冲浆泵稀释到0.04%的浓度打到等压布浆器中,然后在斜网纸机中脱水成型;
(4)成型后的湿纸页再经过压榨和大缸烘干,在压榨时,压榨部线压力控制在55KN/m,此时烘干干度达到90%时利用起皱装置进行起皱,起皱方式采用半干法起皱,起皱刮刀采用陶瓷细纹刮刀,所述起皱装置的起皱刮刀刀架角度为25°,陶瓷刮刀角度为75°,起皱后的纸再经过大缸烘干,大缸烘干时的温度控制在64-66°,出大缸后的干度控制在95-97%,最后卷取、分切得到成品吸水纸。
一种湿巾纸,以上述任一技术方案制作而成的成品吸水纸为原料,按照常规生产工艺进行制造。
以上列举的仅为本发明的具体实施例,显然,本发明不限于以上实施例。本领域的普通技术人员能从本发明公开的内容直接导出或联想到的所有变形,均应属于本发明的保护范围。
Claims (4)
1.一种纯木浆细纹吸水纸的制备工艺,包括以下步骤:
(1)将北木50%和虹鱼50%混合碎浆,碎浆后经过疏解机疏解和盘磨打浆,打浆度控制在23±3度,湿重19±1g;
(2)打浆后的浆料储存在成浆池内,进行配浆,配浆时先添加干强剂,用量5-15Kg/吨纸;然后再添加湿强剂,用量40-50Kg/吨纸;最后添加柔软剂,用量5-15Kg/吨纸;
(3)将上述配好的浆料泵送到流送系统,经过稀释、筛选后再由二次冲浆泵稀释到0.04%的浓度打到等压布浆器中,然后在斜网纸机中脱水成型;
(4)成型后的湿纸页再经过压榨和大缸烘干,干度达到70-90%时利用起皱装置进行起皱,起皱后的纸再经过大缸烘干,最后卷取、分切得到成品吸水纸;
其特征在于,所述步骤(4)湿纸页在压榨时,压榨部线压力控制在50-60KN/m;所述的起皱刮刀采用陶瓷细纹刮刀,所述起皱装置的起皱刮刀刀架角度为25°,陶瓷刮刀角度为75°。
2.根据权利要求1所述的纯木浆细纹吸水纸的制备工艺,其特征在于,步骤(4)中,起皱方式采用半干法起皱。
3.根据权利要求1所述的纯木浆细纹吸水纸的制备工艺,其特征在于,所述大缸烘干时的温度控制在64-66℃ ,出大缸后的干度控制在95-97%。
4.一种湿巾纸,其特征在于,所述湿巾纸采用权利要求1~3所述任一制备工艺制作而成的吸水纸制成。
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CN104060492B (zh) * | 2014-06-13 | 2015-11-11 | 山东太阳生活用纸有限公司 | 一种柔韧的薄页纸及其制备工艺 |
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