CN113717412A - 一种具有封口膜无痕撕开效果的餐盒封口方法 - Google Patents
一种具有封口膜无痕撕开效果的餐盒封口方法 Download PDFInfo
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Abstract
本发明公开了一种具有封口膜无痕撕开效果的餐盒封口方法,属于食品封口膜,所述餐盒包括由食品级塑料加工成的盒体和所述盒体配合的封口膜,该方法包括以下步骤:步骤S1:依次进行酯化反应、醚化反应、交联反应和接枝共聚反应对魔芋葡甘聚糖进行改性;步骤S2:以玉米淀粉为原料,进行改性处理。本发明中,本发明中,所制得的封口膜,耐高温、耐酸和耐冷冻能力强,粘度温度,封口后不会因加热或冷藏影响其粘度的稳定性,避免发生脱落或是粘性增强,且还附带有一定量的爽滑剂、开口剂和防粘剂,共同作用下,不仅能够防止食物粘附在封口膜上,影响食用并造成浪费,且还能够在撕开封口膜时,不易在餐盒的表面出现残留。
Description
技术领域
本发明属于食品封口膜,尤其涉及一种具有封口膜无痕撕开效果的餐盒封口方法。
背景技术
随着生活节奏的加快,快餐式消费越来越频繁,为了保证食材的新鲜且方便输送一般会在餐盒上包裹一层封口膜,利用封口膜和餐盒边缘受热后的粘合将食品密封,从而达到封合的效果,消费者食用前需揭开封口膜,封口膜揭开的难易程度直接关系到消费者的消费体验,从而对产品品牌形象产生一定的影响,且食物存在一定的粘附性,影响食用,因此,现阶段亟需一种具有封口膜无痕撕开效果的餐盒封口方法来解决上述问题。
发明内容
本发明的目的在于:为了解决随着生活节奏的加快,快餐式消费越来越频繁,为了保证食材的新鲜且方便输送一般会在餐盒上包裹一层封口膜,利用封口膜和餐盒边缘受热后的粘合将食品密封,从而达到封合的效果,消费者食用前需揭开封口膜,封口膜揭开的难易程度直接关系到消费者的消费体验,从而对产品品牌形象产生一定的影响,且食物存在一定的粘附性,影响食用的问题,而提出的一种具有封口膜无痕撕开效果的餐盒封口方法。
为了实现上述目的,本发明采用了如下技术方案:
一种具有封口膜无痕撕开效果的餐盒封口方法,所述餐盒包括由食品级塑料加工成的盒体和所述盒体配合的封口膜,该方法包括以下步骤:
步骤S1:依次进行酯化反应、醚化反应、交联反应和接枝共聚反应对魔芋葡甘聚糖进行改性;
步骤S2:以玉米淀粉为原料,进行改性处理;
步骤S3:以明胶和壳聚糖为原料,利用明胶改性壳聚糖;
步骤S4:对蜂蜡进行改性;
步骤S5:将改性后的魔芋葡甘聚糖、淀粉、壳聚糖、蜂蜡以及适量的开口机、防粘剂和爽滑剂与水混合形成乳液,降后将如何加入糊化罐中,通入蒸汽,于58℃下电动搅拌机搅拌40min,并超声脱气30min,最后制得封口膜;
步骤S6:利用热压技术即可实现封口膜对餐盒的封口处理。
作为上述技术方案的进一步描述:
所述步骤S1具体为:
步骤S101:用NaHz叽一N灸HP飞干法进行醋化反应;
步骤S102:采用完全甲基化合物制备法进行醚化反应,在醚化反应过程中所选用的试剂分别为氢氧化钠、硫酸二甲酯和碘甲烷;
步骤S103:在进行交联反应时先经乙酰化,再用表氯醇交联,制得具有网络结构的大孔球粒;
步骤S104:采用铈离子引发,以丙烯腈为添加剂反应得到接枝共聚物。
作为上述技术方案的进一步描述:
所述步骤S101的反应条件具体为:改性剂与魔芋葡甘聚糖精粉重量比4∶10,反应PHZ,温度50℃,反应时长为2h,产物结合磷含量为0.2%一0.3%,粘度最大为20Pa。
作为上述技术方案的进一步描述:
所述步骤S2具体为:
步骤S201:以玉米淀粉为原料,高碘酸钠为氧化剂,盐酸为酸解剂,先将酸解剂和氧化剂加入到去离子水中进行混合,然后加入玉米淀粉搅拌配成淀粉乳;
步骤S202:接着将所制得的淀粉乳转移至化学反应釜中进行一步酸解氧化反应;
步骤S203:酸解氧化反应结束后,先对所获得的物料进行洗涤直至物料呈中性,然后依次进行干燥和研磨处理,最后对粉末状物料进行过滤,制得粉末状双醛淀粉。
作为上述技术方案的进一步描述:
所述步骤S203后利用傅里叶变换红外光谱仪对所制得的粉末状双醛淀粉进行检测,并根据表征证明是否合格。
作为上述技术方案的进一步描述:
所述步骤S201中,盐酸浓度以0.6mol/l为宜,淀粉乳的浓度以8mol/I最佳,所述步骤S202中,酸解氧化反应需控制反应温度为35℃-55℃,反应时间为2-4小时。
作为上述技术方案的进一步描述:
所述步骤S3具体为:
步骤S301:将壳聚糖溶于2%的冰乙酸水溶液中,在30℃水浴锅中充分溶解,过滤制备3.5%的壳聚糖溶液,将明胶溶于蒸馏水中,在50℃水浴锅中充分溶解后过滤制得12%的明胶溶液,按一定体积比将明胶溶液缓慢加入壳聚糖溶液中,在50℃水浴锅中充分搅拌,混合均匀后制得壳聚糖和明胶共混液;
步骤S302:将共混液将共混液静置24h脱泡后,在玻璃板上刮膜,经蒸馏水充分清洗除去残余氢氧化钠溶液。
作为上述技术方案的进一步描述:
所述步骤S302的反应条件为30℃,10%的氢氧化钠凝固浴中浸泡1min。
作为上述技术方案的进一步描述:
所述步骤S4具体为:
步骤S401:将一定量的硬脂酸溶解在无水乙醇中,加入一定量的纳米ZnO原料,采用转速为10000r/min的高速均质机进行均匀分散,使纳米ZnO改性;
步骤S402:随后使用高压空气泵、气流烘干器喷雾干燥法收集改性纳米ZnO,用于蜂蜡的改性。
作为上述技术方案的进一步描述:
所述步骤S402之后将10g蜂蜡加入100mL的烧杯中,在80℃的水浴中加热融化,按照质量分数0.5%、1.0%、2.0%分别加入改性纳米ZnO,高速均质机以10000r/min搅拌1h,然后静置降温得到3种纳米ZnO改性蜂蜡。
综上所述,由于采用了上述技术方案,本发明的有益效果是:
本发明中,魔芋葡甘聚糖是魔芋的主要成分,较为优良的可溶性膳食纤维,是一种水溶性、非离子型高分子多糖,具有高持水性、凝胶性、生物相容性和成膜性等特点,进行物理共混所形成复合膜具有良好的拉伸强度、透明性、光学特性和生物降解性,具有无毒,对食品无刺激,不变色、分解,抗菌性好及成本低等优异性能已被添加到食品包装材料中,用于保持食品的色泽,防止食品变质,改善包装材料的机械强度、阻隔性能和稳定性,在此基础上,所制得的封口膜,耐高温、耐酸和耐冷冻能力强,粘度温度,封口后不会因加热或冷藏影响其粘度的稳定性,避免发生脱落或是粘性增强,且还附带有一定量的爽滑剂、开口剂和防粘剂,共同作用下,不仅能够防止食物粘附在封口膜上,影响食用并造成浪费,且还能够在撕开封口膜时,不易在餐盒的表面出现残留。
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它实施例,都属于本发明保护的范围。
本发明提供一种技术方案:一种具有封口膜无痕撕开效果的餐盒封口方法,所述餐盒包括由食品级塑料加工成的盒体和所述盒体配合的封口膜,该方法包括以下步骤:
步骤S1:依次进行酯化反应、醚化反应、交联反应和接枝共聚反应对魔芋葡甘聚糖进行改性;
步骤S2:以玉米淀粉为原料,进行改性处理;
步骤S3:以明胶和壳聚糖为原料,利用明胶改性壳聚糖;
步骤S4:对蜂蜡进行改性;
步骤S5:将改性后的魔芋葡甘聚糖、淀粉、壳聚糖、蜂蜡以及适量的开口机、防粘剂和爽滑剂与水混合形成乳液,降后将如何加入糊化罐中,通入蒸汽,于58℃下电动搅拌机搅拌40min,并超声脱气30min,最后制得封口膜;
步骤S6:利用热压技术即可实现封口膜对餐盒的封口处理。
具体的,所述步骤S1具体为:
步骤S101:用NaHz叽一N灸HP飞干法进行醋化反应;
步骤S102:采用完全甲基化合物制备法进行醚化反应,在醚化反应过程中所选用的试剂分别为氢氧化钠、硫酸二甲酯和碘甲烷;
步骤S103:在进行交联反应时先经乙酰化,再用表氯醇交联,制得具有网络结构的大孔球粒;
步骤S104:采用铈离子引发,以丙烯腈为添加剂反应得到接枝共聚物。
具体的,所述步骤S101的反应条件具体为:改性剂与魔芋葡甘聚糖精粉重量比4:10,反应PHZ,温度50℃,反应时长为2h,产物结合磷含量为0.2%一0.3%,粘度最大为20Pa。
具体的,所述步骤S2具体为:
步骤S201:以玉米淀粉为原料,高碘酸钠为氧化剂,盐酸为酸解剂,先将酸解剂和氧化剂加入到去离子水中进行混合,然后加入玉米淀粉搅拌配成淀粉乳;
步骤S202:接着将所制得的淀粉乳转移至化学反应釜中进行一步酸解氧化反应;
步骤S203:酸解氧化反应结束后,先对所获得的物料进行洗涤直至物料呈中性,然后依次进行干燥和研磨处理,最后对粉末状物料进行过滤,制得粉末状双醛淀粉。
具体的,所述步骤S203后利用傅里叶变换红外光谱仪对所制得的粉末状双醛淀粉进行检测,并根据表征证明是否合格。
具体的,所述步骤S201中,盐酸浓度以0.6mol/l为宜,淀粉乳的浓度以8mol/l最佳,所述步骤S202中,酸解氧化反应需控制反应温度为35℃-55℃,反应时间为2-4小时。
具体的,所述步骤S3具体为:
步骤S301:将壳聚糖溶于2%的冰乙酸水溶液中,在30℃水浴锅中充分溶解,过滤制备3.5%的壳聚糖溶液,将明胶溶于蒸馏水中,在50℃水浴锅中充分溶解后过滤制得12%的明胶溶液,按一定体积比将明胶溶液缓慢加入壳聚糖溶液中,在50℃水浴锅中充分搅拌,混合均匀后制得壳聚糖和明胶共混液;
步骤S302:将共混液将共混液静置24h脱泡后,在玻璃板上刮膜,经蒸馏水充分清洗除去残余氢氧化钠溶液。
具体的,所述步骤S302的反应条件为30℃,10%的氢氧化钠凝固浴中浸泡1min。
具体的,所述步骤S4具体为:
步骤S401:将一定量的硬脂酸溶解在无水乙醇中,加入一定量的纳米ZnO原料,采用转速为10000r/min的高速均质机进行均匀分散,使纳米ZnO改性;
步骤S402:随后使用高压空气泵、气流烘干器喷雾干燥法收集改性纳米ZnO,用于蜂蜡的改性。
具体的,所述步骤S402之后将10g蜂蜡加入100mL的烧杯中,在80℃的水浴中加热融化,按照质量分数0.5%、1.0%、2.0%分别加入改性纳米ZnO,高速均质机以10000r/min搅拌1h,然后静置降温得到3种纳米ZnO改性蜂蜡。
工作原理:使用时,
步骤S1:依次进行酯化反应、醚化反应、交联反应和接枝共聚反应对魔芋葡甘聚糖进行改性;
步骤S101:用NaHz叽一N灸HP飞干法进行醋化反应,改性剂与魔芋葡甘聚糖精粉重量比4∶10,反应PHZ,温度50℃,反应时长为2h,产物结合磷含量为0.2%一0.3%,粘度最大为20Pa;
步骤S102:采用完全甲基化合物制备法进行醚化反应,在醚化反应过程中所选用的试剂分别为氢氧化钠、硫酸二甲酯和碘甲烷;
步骤S103:在进行交联反应时先经乙酰化,再用表氯醇交联,制得具有网络结构的大孔球粒;
步骤S104:采用铈离子引发,以丙烯腈为添加剂反应得到接枝共聚物;
步骤S2:以玉米淀粉为原料,进行改性处理;
步骤S201:以玉米淀粉为原料,高碘酸钠为氧化剂,盐酸为酸解剂,先将酸解剂和氧化剂加入到去离子水中进行混合,然后加入玉米淀粉搅拌配成淀粉乳;
步骤S202:接着将所制得的淀粉乳转移至化学反应釜中进行一步酸解氧化反应;
步骤S203:酸解氧化反应结束后,先对所获得的物料进行洗涤直至物料呈中性,然后依次进行干燥和研磨处理,最后对粉末状物料进行过滤,制得粉末状双醛淀粉;
步骤S3:以明胶和壳聚糖为原料,利用明胶改性壳聚糖;
步骤S301:将壳聚糖溶于2%的冰乙酸水溶液中,在30℃水浴锅中充分溶解,过滤制备3.5%的壳聚糖溶液,将明胶溶于蒸馏水中,在50℃水浴锅中充分溶解后过滤制得12%的明胶溶液,按一定体积比将明胶溶液缓慢加入壳聚糖溶液中,在50℃水浴锅中充分搅拌,混合均匀后制得壳聚糖和明胶共混液;
步骤S302:将共混液将共混液静置24h脱泡后,在玻璃板上刮膜,经蒸馏水充分清洗除去残余氢氧化钠溶液;
步骤S4:对蜂蜡进行改性;
步骤S401:将一定量的硬脂酸溶解在无水乙醇中,加入一定量的纳米ZnO原料,采用转速为10000r/min的高速均质机进行均匀分散,使纳米ZnO改性;
步骤S402:随后使用高压空气泵、气流烘干器喷雾干燥法收集改性纳米ZnO,用于蜂蜡的改性,将10g蜂蜡加入100mL的烧杯中,在80℃的水浴中加热融化,按照质量分数0.5%、1.0%、2.0%分别加入改性纳米ZnO,高速均质机以10000r/min搅拌1h,然后静置降温得到3种纳米ZnO改性蜂蜡;
步骤S5:将改性后的魔芋葡甘聚糖、淀粉、壳聚糖、蜂蜡以及适量的开口机、防粘剂和爽滑剂与水混合形成乳液,降后将如何加入糊化罐中,通入蒸汽,于58℃下电动搅拌机搅拌40min,并超声脱气30min,最后制得封口膜;
步骤S6:利用热压技术即可实现封口膜对餐盒的封口处理。
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 (10)
1.一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述餐盒包括由食品级塑料加工成的盒体和所述盒体配合的封口膜,该方法包括以下步骤:
步骤S1:依次进行酯化反应、醚化反应、交联反应和接枝共聚反应对魔芋葡甘聚糖进行改性;
步骤S2:以玉米淀粉为原料,进行改性处理;
步骤S3:以明胶和壳聚糖为原料,利用明胶改性壳聚糖;
步骤S4:对蜂蜡进行改性;
步骤S5:将改性后的魔芋葡甘聚糖、淀粉、壳聚糖、蜂蜡以及适量的开口机、防粘剂和爽滑剂与水混合形成乳液,降后将如何加入糊化罐中,通入蒸汽,于58℃下电动搅拌机搅拌40min,并超声脱气30min,最后制得封口膜;
步骤S6:利用热压技术即可实现封口膜对餐盒的封口处理。
2.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S1具体为:
步骤S101:用NaHz叽一N灸HP飞干法进行醋化反应;
步骤S102:采用完全甲基化合物制备法进行醚化反应,在醚化反应过程中所选用的试剂分别为氢氧化钠、硫酸二甲酯和碘甲烷;
步骤S103:在进行交联反应时先经乙酰化,再用表氯醇交联,制得具有网络结构的大孔球粒;
步骤S104:采用铈离子引发,以丙烯腈为添加剂反应得到接枝共聚物。
3.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S101的反应条件具体为:改性剂与魔芋葡甘聚糖精粉重量比4∶10,反应PHZ,温度50℃,反应时长为2h,产物结合磷含量为0.2%一0.3%,粘度最大为20Pa。
4.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S2具体为:
步骤S201:以玉米淀粉为原料,高碘酸钠为氧化剂,盐酸为酸解剂,先将酸解剂和氧化剂加入到去离子水中进行混合,然后加入玉米淀粉搅拌配成淀粉乳;
步骤S202:接着将所制得的淀粉乳转移至化学反应釜中进行一步酸解氧化反应;
步骤S203:酸解氧化反应结束后,先对所获得的物料进行洗涤直至物料呈中性,然后依次进行干燥和研磨处理,最后对粉末状物料进行过滤,制得粉末状双醛淀粉。
5.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,在所述步骤S203后利用傅里叶变换红外光谱仪对所制得的粉末状双醛淀粉进行检测,并根据表征证明是否合格。
6.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S201中,盐酸浓度以0.6mol/l为宜,淀粉乳的浓度以8mol/l最佳,所述步骤S202中,酸解氧化反应需控制反应温度为35℃-55℃,反应时间为2-4小时。
7.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S3具体为:
步骤S301:将壳聚糖溶于2%的冰乙酸水溶液中,在30℃水浴锅中充分溶解,过滤制备3.5%的壳聚糖溶液,将明胶溶于蒸馏水中,在50℃水浴锅中充分溶解后过滤制得12%的明胶溶液,按一定体积比将明胶溶液缓慢加入壳聚糖溶液中,在50℃水浴锅中充分搅拌,混合均匀后制得壳聚糖和明胶共混液;
步骤S302:将共混液将共混液静置24h脱泡后,在玻璃板上刮膜,经蒸馏水充分清洗除去残余氢氧化钠溶液。
8.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S302的反应条件为30℃,10%的氢氧化钠凝固浴中浸泡1min。
9.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S4具体为:
步骤S401:将一定量的硬脂酸溶解在无水乙醇中,加入一定量的纳米ZnO原料,采用转速为10000r/min的高速均质机进行均匀分散,使纳米ZnO改性;
步骤S402:随后使用高压空气泵、气流烘干器喷雾干燥法收集改性纳米ZnO,用于蜂蜡的改性。
10.根据权利要求1所述的一种具有封口膜无痕撕开效果的餐盒封口方法,其特征在于,所述步骤S402之后将10g蜂蜡加入100mL的烧杯中,在80℃的水浴中加热融化,按照质量分数0.5%、1.0%、2.0%分别加入改性纳米ZnO,高速均质机以10000r/min搅拌1h,然后静置降温得到3种纳米ZnO改性蜂蜡。
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CN108707251A (zh) * | 2018-05-23 | 2018-10-26 | 甘肃农业大学 | 一种抑制采后真菌的淀粉膜制备方法 |
CN110078958A (zh) * | 2019-04-28 | 2019-08-02 | 齐鲁工业大学 | 一种抑菌活性食品包装膜的制备方法及应用 |
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