CN114411449A - 一种耐高温高抗水防变形纸容器的制备方法 - Google Patents

一种耐高温高抗水防变形纸容器的制备方法 Download PDF

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CN114411449A
CN114411449A CN202210081001.8A CN202210081001A CN114411449A CN 114411449 A CN114411449 A CN 114411449A CN 202210081001 A CN202210081001 A CN 202210081001A CN 114411449 A CN114411449 A CN 114411449A
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paper container
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林荣杰
张松珍
胡灿华
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Fujian Yibaili Packaging Materials Co ltd
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Abstract

本发明属于食品包装领域,尤其是一种耐高温高抗水防变形纸容器的制备方法,针对现有的纸容器不耐高温、防水性差、防油性差和易变形问题,现提出如下方案,准备原纸和改性材料,并采用以下步骤:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备,利用壳聚糖、微晶纤维素和乳糖醇提高了纸张的防油性,利用耐高温粉料可以提高纸容器的耐高温能力,避免纸张变脆,利用表面施胶液可以在纸容器的表面形成一层防水膜,增强纸容器的防水能力,使得纸容器具有耐高温、防水、防油的优点,同时采用双层结构,强度高,韧性好,耐冲击,稳定性强,制成的纸容器不容易变形。

Description

一种耐高温高抗水防变形纸容器的制备方法
技术领域
本发明涉及食品包装技术领域,尤其涉及一种耐高温高抗水防变形纸容器的制备方法。
背景技术
由纸制成容器,特别是用于容纳食品饮料的纸容器在市场上非常广泛,例如西式快餐中的饮料杯、食品盒,奶茶店的杯子等,例如申请号为CN201710184412.9的专利公开了一种非木材类本色浆食品包装纸及其制备方法,具有安全环保,保持植物纤维的天然本色,无尘无屑,且抄造工艺中不产生有害物质,减少了废水处理的成本,生产成本低的优点。
但是该一种非木材类本色浆食品包装纸及其制备方法也存在不足,例如不耐高温,一旦盛放的食品温度过高便容易分解变脆,容易破损,而且容易被水打湿,只能盛放包装干燥的食品,同时食品中的油脂容易渗入材料,甚至油脂外溢,影响食品的卫生健康。
发明内容
基于背景技术存在不耐高温、防水性差、防油性差和易变形的问题,本发明提出了一种耐高温高抗水防变形纸容器的制备方法。
本发明提出的一种耐高温高抗水防变形纸容器的制备方法,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得40-60份的聚乳酸加热至50℃~80℃,加入2份~4份的壳聚糖、2份~3份的微晶纤维素和1份~2份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液;
S3:在一号配料斗中按2:3-1:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1-7:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品;
S5:按质量百份比取得30份~50份的PP、20份~50份的淀粉、20份~30份的食品级石蜡和1份~2份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张;
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
优选地,所述在S2中,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0。
优选地,所述在S2中,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时。
优选地,所述在S4中,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%。
优选地,所述在S4中,多层流浆箱中上层混合料和下层混合料的浓度分别为0.5%~0.8%和0.5%~0.6%,上下两层混合料的质量比为40%~65%:35%~60%。
优选地,所述在S4中,抄造时混合料速度和成形网速度比控制在0.90~1.00。
优选地,所述在S5中,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09。
优选地,所述在S6中,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6g/m2
本发明的有益效果:
1、利用壳聚糖、微晶纤维素和乳糖醇的特殊性能,降低了材料孔径,增加材料的致密性,改善了材料均匀性能,提高了纸张容器的防油性,并且表面施胶液中含有PP和淀粉,增强防油效果;
2、在助剂溶液中的耐高温粉料可以提高纸容器的耐高温能力,避免纸张受热后发生分解反应,避免纸张变脆;
3、表面施胶液中的PP、食品级石蜡和食品级乳糖醇可以在纸容器的表面形成一层防水膜,防止水分渗入,增强纸容器的防水能力;
本发明具有耐高温、防水、防油的优点,同时采用双层结构,强度高,韧性好,耐冲击,稳定性强,制成的纸容器不容易变形。
附图说明
图1为本发明提出的工作流程图。
具体实施方式
下面结合具体实施例对本发明作进一步解说。
参照图1,实施例一
本实施例中提出了一种耐高温高抗水防变形纸容器的制备方法,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得56份的聚乳酸加热至50℃~80℃,加入4份的壳聚糖、3份的微晶纤维素和2份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时;
S3:在一号配料斗中按2:3:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%,多层流浆箱中上层混合料和下层混合料的浓度分别为0.7%和0.5%,上下两层混合料的质量比为45%:38%,抄造时混合料速度和成形网速度比控制在0.90~1.00;
S5:按质量百份比取得35份的PP、26份的淀粉、26份的食品级石蜡和2份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6 g/m2
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
参照图1,实施例二
本实施例中提出了一种耐高温高抗水防变形纸容器的制备方法,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得51份的聚乳酸加热至50℃~80℃,加入2份的壳聚糖、3份的微晶纤维素和1份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时;
S3:在一号配料斗中按2:3-1:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1-7:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%,多层流浆箱中上层混合料和下层混合料的浓度分别为0.5%~0.8%和0.5%~0.6%,上下两层混合料的质量比为40%~65%:35%~60%,抄造时混合料速度和成形网速度比控制在0.90~1.00;
S5:按质量百份比取得33份的PP、24份的淀粉、26份的食品级石蜡和1份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6 g/m2
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
参照图1,实施例三
本实施例中提出了一种耐高温高抗水防变形纸容器的制备方法,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得42份的聚乳酸加热至50℃~80℃,加入4份的壳聚糖、3份的微晶纤维素和2份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时;
S3:在一号配料斗中按2:3-1:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1-7:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%,多层流浆箱中上层混合料和下层混合料的浓度分别为0.5%~0.8%和0.5%~0.6%,上下两层混合料的质量比为40%~65%:35%~60%,抄造时混合料速度和成形网速度比控制在0.90~1.00;
S5:按质量百份比取得46份的PP、41份的淀粉、25份的食品级石蜡和1份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6 g/m2
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
参照图1,实施例四
本实施例中提出了一种耐高温高抗水防变形纸容器的制备方法,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得49份的聚乳酸加热至50℃~80℃,加入3份的壳聚糖、3份的微晶纤维素和2份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时;
S3:在一号配料斗中按2:3-1:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1-7:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%,多层流浆箱中上层混合料和下层混合料的浓度分别为0.5%~0.8%和0.5%~0.6%,上下两层混合料的质量比为40%~65%:35%~60%,抄造时混合料速度和成形网速度比控制在0.90~1.00;
S5:按质量百份比取得46份的PP、34份的淀粉、27份的食品级石蜡和2份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6 g/m2
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
参照图1,实施例五
本实施例中提出了一种耐高温高抗水防变形纸容器的制备方法,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得55份的聚乳酸加热至50℃~80℃,加入3份的壳聚糖、3份的微晶纤维素和2份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时;
S3:在一号配料斗中按2:3-1:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1-7:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%,多层流浆箱中上层混合料和下层混合料的浓度分别为0.5%~0.8%和0.5%~0.6%,上下两层混合料的质量比为40%~65%:35%~60%,抄造时混合料速度和成形网速度比控制在0.90~1.00;
S5:按质量百份比取得48份的PP、47份的淀粉、23份的食品级石蜡和1份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6 g/m2
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
对比常规的纸容器与实施例一至五制得的纸容器,实施例一至五制得的纸容器如下表:
Figure DEST_PATH_IMAGE001
由上述表格可知,本发明提出的纸容器的耐高温、防油、防水、防变形具有明显提高,且实施三为最佳实施例。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (8)

1.一种耐高温高抗水防变形纸容器的制备方法,其特征在于,准备原纸和改性材料,并采用以下步骤:
S1:准备一号配料斗、一号成料斗、二号配料斗、二号成料斗、多层流浆箱和施胶设备;
S2:按质量百份比取得40-60份的聚乳酸加热至50℃~80℃,加入2份~4份的壳聚糖、2份~3份的微晶纤维素和1份~2份的焦磷酸钠分散剂,并使用超声设备处理后搅拌,制得助剂溶液;
S3:在一号配料斗中按2:3-1:1加入助剂溶液和聚酰胺聚胺表氯醇树脂,混合均匀后导入一号成料斗,同时向二号配料斗中按1:1:1-7:5:6加入助剂溶液、食品级石蜡和聚酰胺聚胺表氯醇树脂,混合均匀后导入二号成料斗;
S4:先后对一号成料斗和二号成料斗的混合料进行调浓、除渣处理,分别加入阳离子聚丙烯酰胺,然后一号成料斗的混合料导入多层流浆箱的下层,二号成料斗的混合料导入多层流浆箱的上层,原纸放在多层流浆箱的中层,经过抄造工序,下层和上层的混合料分别贴附在中层原纸的两面,烘干得到半成品;
S5:按质量百份比取得30份~50份的PP、20份~50份的淀粉、20份~30份的食品级石蜡和1份~2份的食品级乳糖醇,加入搅拌设备,加热至30℃~50℃,使用超声处理后搅拌,制得表面施胶液;
S6:将经过烘干的半成品导入施胶设备进行浸泡,并使施胶液的液面完全浸没半成品纸页,然后经过施胶辊的均匀挤压,经过烘干制得容器纸张;
S7:按照纸容器的形状对容器纸张进行模切、压痕、折叠和粘合,从而得到耐高温高抗水防变形纸容器。
2.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S2中,先将聚乳酸加热前配置成5%~10%的水溶液,然后将聚乳酸溶液加热至50℃~80℃,接着调节溶液的pH至5.0~8.0。
3.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S2中,超声设备的超声频率控制在50~100kHz,超声时间控制十分钟,搅拌速度控制在1万~2万rpm,搅拌时间控制在半个小时。
4.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S4中,阳离子聚丙烯酰胺的添加位置为压力筛进浆口,阳离子聚丙烯酰胺的用量为0.01%~0.03%。
5.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S4中,多层流浆箱中上层混合料和下层混合料的浓度分别为0.5%~0.8%和0.5%~0.6%,上下两层混合料的质量比为40%~65%:35%~60%。
6.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S4中,抄造时混合料速度和成形网速度比控制在0.90~1.00。
7.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S5中,PP取代度DS为0.5~0.8,淀粉取代度DS为0.05~0.09。
8.根据权利要求1所述的一种耐高温高抗水防变形纸容器的制备方法,其特征在于,所述在S6中,施胶时,表面施胶液的浓度控制在2%~7%,涂胶量为4~6 g/m2
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CN112176766A (zh) * 2020-09-30 2021-01-05 京准化工技术(上海)有限公司 一种无氟环保的防油提升剂及其制备方法

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