CN114408341A - 一种蔬果用包装结构 - Google Patents
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Abstract
本发明公开了一种蔬果用包装结构,包括包括外箱体、衬板以及组合膜结构;其外箱体包括盒体,盒体顶面通过上盖封闭,并在盒体的两侧底部设置有透气孔;所述衬板为纸浆托盘结构,衬装在所述容积腔内,衬板沿容积腔的长度方向设置,并在衬板上设置带放置槽的若干通槽,而位置相邻的通槽在下部对应所述贯穿槽孔;所述组合膜结构包括衬装膜以及单果包装膜,所述衬装膜设置于所述放置槽孔位置;而单果包装膜用于包装单果后直接放置于所述放置槽中;所述单果包装膜为带孔乙烯‑醋酸乙烯共聚物膜;所述衬装膜为高透湿保鲜膜。本发明能对蔬果进行有效包装,提高物理保护的同时延长蔬果的保藏周期。
Description
技术领域
本发明涉及包装技术领域,具体涉及一种能有效提高蔬果包装效果、包装效率的蔬果用包装结构。
背景技术
伴随着人们生活水平的日益提高以及电子商务的快速发展,网络购物愈发流行,而随着产品种类的日益拓宽,各种讲究新鲜的生鲜果蔬包装运输供应需求越来越大,而长时间的大范围物流运输日渐平常。
而作为常见的物流辅助,包装箱广泛应用于各行各业,不同的行业对于不同的物品的包装需求不尽相同,对于容易变质的果蔬类产品,由于果蔬本身的特性,其对包装箱的要求较高,除了必须满足果蔬的长时间储存,并且不能够腐烂变质,同时又要满足果蔬的绿色无污染需求;而对于长途运输来说,其除了要求有较高的保鲜效果之外,还要求对包装的内容物有较佳的抗冲击保护性能。
现有的果蔬包装通常都是采用保鲜膜或者保鲜袋,采用这种包装袋既能够防止果蔬的灰尘污染,又能够实现一定时长的保鲜、延迟果蔬的腐蚀时机。但现有的果蔬保鲜包装袋内由于不能有效实现空气的自然对流,导致包装袋的透气性不理想,需要在袋体上开孔来辅助果蔬进行透气(主要用于排湿、并保证为果蔬的呼吸作用供氧),并在外侧利用传统的瓦楞纸箱或者泡沫箱进行抗冲击保护,再借助冷链进行运输,但是即便是使用开孔的保鲜膜或者保鲜袋这种保鲜方式的效果依然较差,对保质期的延长主要还是通过冷链物流来实现的,但冷链本身使用成本较高,不适合于中小批量的运输。另外,当包装打开后,果蔬暴露于空气后保鲜效果即大幅下降,即难以通过再次扎紧保鲜膜或者保鲜袋的方式延长包装盒内的果蔬新鲜程度。
发明内容
本发明所解决的技术问题在于提供一种蔬果用包装结构,可有效提高蔬果的包装效率,同时能在运输、存储过程中为蔬果提供保护,并提供一定的保鲜效果,以解决上述技术背景中的缺陷。
本发明所解决的技术问题采用以下技术方案来实现:
一种蔬果用包装结构,包括外箱体、衬板以及组合膜结构;
所述外箱体包括盒体,所述盒体中具有容置蔬果的容积腔,所述容积腔为矩形腔体,盒体顶面设置有开放面,所述开放面通过上盖进行开放面的面封闭;并在盒体的两短边侧的底部设置有多个贯穿槽孔作为透气孔;
所述衬板为纸浆托盘结构,衬装在所述容积腔内,衬板沿容积腔的长度方向设置,并在衬板上平行且间隔设置有若干通槽,所述通槽为盲槽并在通槽内间隔设置有用于放置待包装蔬果的放置槽,所述放置槽的侧壁开有放置槽槽孔,而位置相邻的通槽在下部对应所述贯穿槽孔;
所述组合膜结构包括衬装膜以及单果包装膜,所述衬装膜衬装于所述放置槽孔的内侧面上或者贴装于所述放置槽孔的外侧面上并覆盖所述放置槽槽孔;而待包装的蔬果单果装入单果包装膜后直接放置于所述放置槽中;所述单果包装膜为带孔乙烯-醋酸乙烯共聚物膜;所述衬装膜为高透湿保鲜膜,且所述高透湿保鲜膜的水蒸气透过率为350~500g/m2·天,而氧气透过率为22~25g/m2·天。
作为进一步限定,所述外箱体为瓦楞纸板或者泡沫材料成型制成。
作为进一步限定,所述衬板在对应通槽的底部两侧设置有加强外衬来保证衬板的结构强度;并在所述盒体的底面与所述衬板之间衬装有缓冲垫,所述缓冲垫与所述加强外衬为一体成型。
作为进一步限定,所述衬板在对应所述贯穿槽孔位置设置有冰袋放置空间。
作为进一步限定,所述透气孔为预开孔结构,所述预开孔结构的外侧设置有预开划痕,所述预开划痕为未启封状态下时保持盒体为封闭盒体结构,在装配时,在预开划痕时按压并启封所述预开划痕后即能打开所述透气孔。
作为进一步限定,所述放置槽的槽孔尺寸为待包装的果蔬尺寸的1.3~1.5倍,且通槽上间隔设置的放置槽之间的间距为8~12mm。
作为进一步限定,作为衬装膜的所述高透湿保鲜膜为聚乙烯、聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以及聚丁二烯的熔融共混物膜层,且所述熔融共混物膜层的共混物体系包括78~84wt%的聚乙烯、12~15wt%聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以及余量的聚丁二烯。
作为进一步限定,所述组合膜结构还包括盖合膜,所述盖合膜为一层与盒体尺寸相匹配的硬质透明聚氯乙烯膜盖或者聚乙烯膜盖,直接盖合于盒体顶面的开放面上,而所述上盖则盖合于所述盖合膜表面。
作为进一步限定,所述单果包装膜的膜厚度为30~40μm。
有益效果:本发明一种蔬果用包装结构可对昂贵、易腐败的高档果蔬进行包装和存储,其能有效适应于蔬果的存储特性,在保证蔬果运输和存储过程中的包装结构的强度条件下,对果蔬包装内的湿度和气体流通进行控制,保证包装内空气自然对流的同时对单果包装膜袋内的湿气进行控制,以延长包装内果蔬的保鲜周期,延迟果蔬的萎焉、腐败,同时,单果包装膜袋的结构能有效减少包装打开后变量对单果的影响,使得包装打开可以随取随用,并保证包装盒内的未开启的单果包装膜袋内的果蔬新鲜程度。
附图说明
图1为本发明的较佳实施例的结构示意图。
其中:1、上盖;2、盖合膜;3、单果包装膜开口;4、扎口带;5、待包装蔬果;6、单果包装膜;7、侧袋袋体;8、衬板;9、缓冲垫;10、放置槽槽孔;11、衬装膜;12、加强外衬;13、贯穿槽孔;14、盒体。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐述本发明。
需要说明,若本发明实施例中有涉及方向性指示(诸如根据上、下、左、右、前、后……),则该方向性指示仅用于解释在某一特定姿态(根据附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
在下述实施例中,本技术领域技术人员可以理解,除非另外定义,这里使用的所有术语(包括技术术语和科学术语)具有与本申请所属领域中的普通技术人员的一般理解相同的意义。
参见图1的一种蔬果用包装结构的较佳实施例,在本实施例中,该蔬果用包装结构包括外箱体、衬板8以及与外箱体、衬板8配合使用的组合膜结构。
其外箱体为与传统的蔬果包装结构类似的盒体结构,其包括盒体14以及盖合于盒体14表面的上盖1,该盒体14与配套的上盖1均为瓦楞纸板剪切后粘接并加固定扣扣装固定成型。而在另一实施例中,该盒体14和上盖1也可以为配套的泡沫材料箱体结构,其使用效果类似。
在本实施例中,盒体14的容积腔为矩形容积腔,在图1中展示的是该盒体14在长度方向上的剖面示意图,其盒体14的容积腔内设置有衬板8,该衬板8为为纸浆托盘结构,衬板8的托盘体与该盒体14的容积腔的尺寸相匹配,使用时按照图1样式填装于容积腔内,并在外缘叠装于盒体14的外缘表面,另外,在盒体14的两短边侧(对应图1的盒体14的对侧)的底部设置有多个贯穿槽孔13作为透气孔。
衬板8上沿盒体14的容积腔长度方向设置有多个通槽,这些通槽为盲槽,并在通槽上间隔设置有用于放置待包装蔬果5的放置槽,通槽中的放置槽的槽孔尺寸为待包装的果蔬尺寸的1.3~1.5倍,且通槽上间隔设置的放置槽之间的间距为8~12mm。
而在放置槽的两侧对应设置有多个通孔来作为放置槽槽孔10,该放置槽槽孔10可用于辅助待包装蔬果5进行呼吸作用;而在放置槽槽孔10的外侧则设置有衬装膜11,该衬装膜11贴装在衬板8外侧对应放置槽位置的两侧外侧,并对放置槽槽孔10进行封闭;在本实施例中,该衬装膜11为高透湿保鲜膜,由80wt%的聚乙烯、13wt%的聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以及7wt%的聚丁二烯的熔融共混物利用膜成型设备流延成型,该衬装膜11主要用于改善传统的聚乙烯膜透湿性差的缺陷,其将高透湿性的聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以熔融共混的方式改性聚乙烯,然后利用聚丁二烯进行调性,保证膜结构强度和稳定性能,以获得力学性能、气体透过性能和透湿性能适合于密封包装的高透湿保鲜膜;而在本实施例的聚乙烯、聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以及聚丁二烯的配比条件下成型的衬装膜11的厚度为350~450nm,且在该厚度条件下成型的高透湿保鲜膜的水蒸气透过率为420~450g/m2·天,而氧气透过率为22~23g/m2·天(环境温度5~6℃、相对湿度50~55%)。
另外,为了保证衬板8的结构强度,在衬板8的底部对应通槽的底部还设置有贴合通槽的加强外衬12,并在加强外衬12的底部设置有缓冲垫9,该缓冲垫8与加强外衬12为乙烯-醋酸乙烯共聚物泡棉材料一体成型,并直接垫放于盒体14的容积腔中。
另外,组合膜结构还包括单果包装膜6,该单果包装膜6为一个袋体结构,成型袋体的为一层厚度为30μm的乙烯-醋酸乙烯共聚物膜,并在单果包装膜6的袋体上开有多个用于排湿和透气的孔,单果包装膜6的袋体具有单果包装膜开口3。
在本实施例中进行包装时,将对应的待包装蔬果5利用单果包装膜开口3装入单果包装膜6中进行单个包装,包装后利用扎口带4进行收口并扎紧;然后放入对应衬板8上的放置槽中;然后在盒体14的表面盖装盖合膜2,该盖合膜2为一层与盒体14尺寸相匹配的硬质透明聚氯乙烯膜盖,直接盖合于盒体14顶面的开放面上,而上盖1则按照如图1所示样式盖合于盖合膜2的外表面上。
利用本实施例的结构特征下的蔬果用包装结构分别对黄瓜、柑橘、杨桃、卷心菜进行保存,并分别以普通瓦楞纸盒包装作为对比例一、PE保鲜袋包装作为对比例二进行黄瓜、柑橘、杨桃、卷心菜的保存,控制在相同的环境变量条件下分别在常温(23℃)条件下和冷藏(3℃)条件进行保存,记录对应的待包装蔬果5在氧气含量12%,二氧化碳含量7%,氮气含量81%、相对湿度45%条件下失水10wt%所需要的时间以及在氧气含量12%,二氧化碳含量7%,氮气含量81%、相对湿度95%条件下产生5wt%的腐败需要的时间如下表:
由上表可以看出,本实施例的蔬果用包装结构,相比于传统的瓦楞纸包装以及保鲜膜包装,其包装的保鲜有效有明显提升,且在冷藏条件下,其保鲜效果提升尤其明显,其对水果和蔬菜具有较佳的保水和防霉变性能,使得蔬果在整个贮藏过程中感官品质保持较好,而针对不同水果保鲜效果提升率在30~80%之间,具有较佳的保鲜效果,具有较好的使用前景。
同时,衬板8、缓冲垫9以及加强外衬12也使得包装结构具有较佳的力学性能,而盖合膜2以及上盖1、盒体14的组合也使得包装的气体透过性能和透湿性能均得到提升。
另外,为提高本发明的技术方案的可用性,在本实施例中,衬板的下表面上对应贯穿槽孔位置的侧旁还设置有侧袋袋体7,该侧袋袋体7可以作为冰袋放置空间来放置进行预冻处理的冰袋,来进行短时间的非冷链条件的冷藏运输和保存,进而保证保鲜效果。
而为了方便成型,贯穿槽孔13位置的透气孔为预开孔结构,这些预开孔结构的外侧设置有预开划痕,预开划痕为未启封状态下时保持盒体为封闭盒体结构,在装配时在预开划痕时按压并启封预开划痕后即能打开透气孔。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (9)
1.一种蔬果用包装结构,其特征在于,包括外箱体、衬板以及组合膜结构;
所述外箱体包括盒体,所述盒体中具有容置蔬果的容积腔,所述容积腔为矩形腔体,盒体顶面设置有开放面,所述开放面通过上盖进行开放面的面封闭;并在盒体的两短边侧的底部设置有多个贯穿槽孔作为透气孔;
所述衬板为纸浆托盘结构,衬装在所述容积腔内,衬板沿容积腔的长度方向设置,并在衬板上平行且间隔设置有若干通槽,所述通槽为盲槽并在通槽内间隔设置有用于放置待包装蔬果的放置槽,所述放置槽的侧壁开有放置槽槽孔,而位置相邻的通槽在下部对应所述贯穿槽孔;
所述组合膜结构包括衬装膜以及单果包装膜,所述衬装膜衬装于所述放置槽孔的内侧面上或者贴装于所述放置槽孔的外侧面上并覆盖所述放置槽槽孔;而待包装的蔬果单果装入单果包装膜后直接放置于所述放置槽中;所述单果包装膜为带孔乙烯-醋酸乙烯共聚物膜;所述衬装膜为高透湿保鲜膜,且所述高透湿保鲜膜的水蒸气透过率为350~500g/m2·天,而氧气透过率为22~25g/m2·天。
2.根据权利要求1所述的蔬果用包装结构,其特征在于,所述外箱体为瓦楞纸板或者泡沫材料成型制成。
3.根据权利要求1所述的蔬果用包装结构,其特征在于,所述衬板在对应通槽的底部两侧设置有加强外衬来保证衬板的结构强度;并在所述盒体的底面与所述衬板之间衬装有缓冲垫,所述缓冲垫与所述加强外衬为一体成型。
4.根据权利要求1所述的蔬果用包装结构,其特征在于,所述衬板在对应所述贯穿槽孔位置设置有冰袋放置空间。
5.根据权利要求1所述的蔬果用包装结构,其特征在于,所述透气孔为预开孔结构,所述预开孔结构的外侧设置有预开划痕,所述预开划痕为未启封状态下时保持盒体为封闭盒体结构,在装配时,在预开划痕时按压并启封所述预开划痕后即能打开所述透气孔。
6.根据权利要求1所述的蔬果用包装结构,其特征在于,所述放置槽的槽孔尺寸为待包装的果蔬尺寸的1.3~1.5倍,且通槽上间隔设置的放置槽之间的间距为8~12mm。
7.根据权利要求1所述的蔬果用包装结构,其特征在于,作为衬装膜的所述高透湿保鲜膜为聚乙烯、聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以及聚丁二烯的熔融共混物膜层,且所述熔融共混物膜层的共混物体系包括78~84wt%的聚乙烯、12~15wt%聚己二酸丁二醇酯-对苯二甲酸丁二醇酯以及余量的聚丁二烯。
8.根据权利要求1所述的蔬果用包装结构,其特征在于,所述组合膜结构还包括盖合膜,所述盖合膜为一层与盒体尺寸相匹配的硬质透明聚氯乙烯膜盖或者聚乙烯膜盖,直接盖合于盒体顶面的开放面上,而所述上盖则盖合于所述盖合膜表面。
9.根据权利要求1所述的蔬果用包装结构,其特征在于,所述单果包装膜的膜厚度为30~40μm。
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