CN104479204A - 抗菌型果蔬保鲜包装袋用母料及其制备的包装袋 - Google Patents

抗菌型果蔬保鲜包装袋用母料及其制备的包装袋 Download PDF

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CN104479204A
CN104479204A CN201410740279.7A CN201410740279A CN104479204A CN 104479204 A CN104479204 A CN 104479204A CN 201410740279 A CN201410740279 A CN 201410740279A CN 104479204 A CN104479204 A CN 104479204A
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polyethylene
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刘志锋
薛希忠
孟忠志
马强
尹君华
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SHANDONG QINGTIAN PLASTIC INDUSTRY Co Ltd
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Abstract

本发明属于果蔬保鲜包装袋领域,具体涉及一种抗菌型果蔬保鲜包装袋用母料及其制备的包装袋。母料由以下重量份数的原料制成:百里酚0.5~1.5份、香草醛0.5~1.5份、钛白粉10~20份、聚乙烯蜡0.5~1.5份和粉料30~35份;该母料配料合理,具有抗菌效果。本发明还提供一种由该母料制备的包装袋,由聚乙烯和母料按照重量比为80-90:10-20制成。本发明包装袋具有抑制细菌、杀菌除霉和杀螨驱虫的效果,能够延长果蔬的储存期,降低果蔬行业的储存运输成本。

Description

抗菌型果蔬保鲜包装袋用母料及其制备的包装袋
技术领域
本发明属于果蔬保鲜包装袋领域,具体涉及一种抗菌型果蔬保鲜包装袋用母料及其制备的包装袋。
背景技术
有关资料显示,我国每年果蔬腐烂超过8000万吨,加上生产人工运输成本,造成的经济损失高达750亿元,占整个行业产值的30%以上。专家指出,果蔬保鲜储藏业的落后已成为这一产业发展的“瓶颈”,投资果蔬保鲜产业,不仅可获丰厚回报,对农民增收也具有重大意义。有专家分析认为,未来相当长的一段时间内,果蔬保鲜业将是一个保持高速发展的潜在市场。公司的发展需要创新,所谓“人无我有,人有我优”,传统的地膜和棚膜生产厂家太多,成本高利润薄,竞争激烈,在很长一段时间内难以有所突破,保鲜膜市场范围广需求量大并且不受季节影响,由此,研发保鲜膜显得尤为必要。
影响果蔬保鲜期的主要因素是菌类微生物。采摘后的果蔬,贮存环境多是阴暗潮湿的地方,容易滋生霉菌。发霉是一种常见的自然现象,多出现在果实和蔬菜中,果蔬含有一定的淀粉和蛋白质,而且或多或少地含有一些水份,而霉菌和虫卵生长发育需要水的存在和暖和的温度,霉菌和虫卵会吸收食物中的水分进而分解和食用食物中的养分,导致果实腐烂,而且具有蔓延性。除此之外,其他病原微生物也会加快果蔬贮存过程中的腐烂进度。
目前市场上的保鲜膜,带有功能性的比较少见,我们在超市常见的普通聚乙烯保鲜膜,仅仅通过简单的覆盖隔离起到保湿、隔离微生物以及隔绝氧气降低果蔬呼吸消耗糖分的作用,并不能阻碍果蔬腐烂变质。
发明内容
针对现有技术的不足,本发明的目的是提供一种抗菌型果蔬保鲜包装袋用母料,配料合理,具有抗菌效果,本发明还提供一种其制备的包装袋,具有抑制细菌、杀菌除霉和杀螨驱虫的效果,能够延长果蔬的储存期,降低果蔬行业的储存运输成本。
本发明所述的抗菌型果蔬保鲜包装袋用母料,母料由以下重量份数的原料制成:
其中:粉料为聚乙烯,优选为聚乙烯7042。
所述的抗菌型果蔬保鲜包装袋用母料,母料的制备方法包括以下步骤:
(1)依次加入粉料、聚乙烯蜡,再加入钛白粉,最后加入香草醛和百里酚,搅拌混炼;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料。
所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,由聚乙烯和母料按照重量比为80-90:10-20制成。
其中:
聚乙烯为线性聚乙烯和高压聚乙烯按质量比为70:20混合。
聚乙烯为线性聚乙烯1002kw、线性聚乙烯222wt和高压聚乙烯2426H按质量比为40:30:20混合。
所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,包装袋的制备方法包括以下步骤:
(1)依次加入粉料、聚乙烯蜡,再加入钛白粉,最后加入香草醛和百里酚,搅拌混炼;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料;
(3)将聚乙烯和步骤(2)得到的母料加入料斗内,经过混料机混合均匀,然后进入单螺杆挤出机内升温塑化成熔融状态,被单螺杆挤出机挤出到达模口,通过机头吹胀成管泡,风环冷却定型后,压平,经牵引辊拉卷,得到保鲜薄膜,再在制袋机中制成抗菌型果蔬保鲜包装袋。
步骤(1)中搅拌的转速为1000~1500rpm;步骤(1)中混炼的温度控制在160~190℃,时间控制在5~7分钟。
步骤(2)中挤出造粒的温度为130~160℃。
步骤(3)中单螺杆挤出机的温度为机筒1区为150~170℃,机筒2区为160~190℃,机筒3区为170~200℃,连接体为180~210℃,机头为190~220℃。
制袋机为市售点断式制袋机。
本发明母料中通过添加适当含量的香草醛(3-甲氧基-4-羟基苯甲醛)和百里酚,具有抑制细菌的特性,还具有杀菌除霉和杀螨驱虫的效果。
对本发明制备得到的包装袋进行性能测试,测试结果如下:
综上所述,本发明具有以下优点:
(1)本发明所述的母料,本发明通过添加适当含量的香草醛和百里酚,配料合理,具有抗菌效果;
(2)本发明通过添加适当含量的香草醛和百里酚,得到的包装袋具有抑制细菌的特性,还具有杀菌除霉和杀螨驱虫的效果,降低了病原微生物对果蔬的损害,从而延长果蔬的储存期,降低果蔬行业的储存运输成本;
(2)本发明还提供其制备方法,工艺合理。
具体实施方式
下面结合实施例对本发明做进一步说明。
所有实施例中提到的份数均为重量份数。
所有实施例中所用原料除特殊说明外均为市购。
实施例1
一种抗菌型果蔬保鲜包装袋用母料,制备方法包括以下步骤:
(1)依次加入32份粉料(聚乙烯7042)、1.5份聚乙烯蜡,再加入15份钛白粉,最后加入1.0份香草醛和1.0份百里酚,搅拌混炼,搅拌转速为1200rpm,混炼的温度控制在180℃,时间控制在6分钟;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,在温度为145±5℃挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料。
采用该母料制备包装袋,制备方法包括以下步骤:
将90份聚乙烯和10份实施例1得到的母料加入料斗内,经过混料机混合均匀,然后进入单螺杆挤出机内升温塑化成熔融状态,被单螺杆挤出机挤出到达模口,通过机头吹胀成管泡,风环冷却定型后,压平,经牵引辊拉卷,得到保鲜薄膜,再在制袋机中制成抗菌型果蔬保鲜包装袋。
其中:
制备包装袋所用的聚乙烯为线性聚乙烯1002kw、线性聚乙烯222wt和高压聚乙烯2426H按质量比为40:30:20混合。
单螺杆挤出机的温度为机筒1区为160±10℃,机筒2区为170±10℃,机筒3区为185±10℃,连接体为200±10℃,机头为210±10℃。
对本发明实施例1制备得到的抗菌型果蔬保鲜包装袋进行性能测试,测试结果如下:
将同样新鲜的果蔬放置于实施例1制备得到的包装袋和普通市购包装袋中进行测试:
实施例1制备得到的包装袋对果蔬霉菌有良好的抑制性,对大部分真菌病毒也有良好的防护性,经实验证明:用抗菌型果蔬保鲜包装袋的果蔬比用普通保鲜袋的果蔬保存时间延长65%,并且90%以上没有病虫害。
实施例2
一种抗菌型果蔬保鲜包装袋用母料,制备方法包括以下步骤:
(1)依次加入30份粉料、0.5份聚乙烯蜡,再加入20份钛白粉,最后加入1.5份香草醛和0.5份百里酚,搅拌混炼,搅拌转速为1500rpm,混炼的温度控制在190℃,时间控制在5分钟;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,在温度为135±5℃挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料;
采用该母料制备包装袋,制备方法包括以下步骤:
将80份聚乙烯和20份实施例2得到的母料加入料斗内,经过混料机混合均匀,然后进入单螺杆挤出机内升温塑化成熔融状态,被单螺杆挤出机挤出到达模口,通过机头吹胀成管泡,风环冷却定型后,压平,经牵引辊拉卷,得到保鲜薄膜,再在制袋机中制成抗菌型果蔬保鲜包装袋。
其中:
制备包装袋所用的聚乙烯为线性聚乙烯1002kw、线性聚乙烯222wt和高压聚乙烯2426H按质量比为40:30:20混合。
单螺杆挤出机的温度为机筒1区为160±10℃,机筒2区为170±10℃,机筒3区为185±10℃,连接体为200±10℃,机头为210±10℃。
对本发明实施例2制备得到的抗菌型果蔬保鲜包装袋进行性能测试,测试结果如下:
将同样新鲜的果蔬放置于实施例2制备得到的包装袋和普通市购包装袋中进行测试:
实施例2制备得到的包装袋对果蔬霉菌有良好的抑制性,对大部分真菌病毒也有良好的防护性,经实验证明:用抗菌型果蔬保鲜包装袋的果蔬比用普通保鲜袋的果蔬保存时间延长60%,并且90%以上没有病虫害。
实施例3
一种抗菌型果蔬保鲜包装袋用母料,制备方法包括以下步骤:
(1)依次加入35份粉料(聚乙烯7042)、1.0份聚乙烯蜡,再加入10份钛白粉,最后加入0.5份香草醛和1.5份百里酚,搅拌混炼,搅拌转速为1000rpm,混炼的温度控制在160℃,时间控制在7分钟;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,在温度为150±5℃挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料;
采用该母料制备包装袋,制备方法包括以下步骤:
将85份聚乙烯和15份步骤(2)得到的母料加入料斗内,经过混料机混合均匀,然后进入单螺杆挤出机内升温塑化成熔融状态,被单螺杆挤出机挤出到达模口,通过机头吹胀成管泡,风环冷却定型后,压平,经牵引辊拉卷,得到保鲜薄膜,再在制袋机中制成抗菌型果蔬保鲜包装袋。
其中:
制备包装袋所用的聚乙烯为线性聚乙烯1002kw、线性聚乙烯222wt和高压聚乙烯2426H按质量比为40:30:20混合。
单螺杆挤出机的温度为机筒1区为160±10℃,机筒2区为170±10℃,机筒3区为185±10℃,连接体为200±10℃,机头为210±10℃。
对本发明实施例3制备得到的抗菌型果蔬保鲜包装袋进行性能测试,测试结果如下:
将同样新鲜的果蔬放置于实施例3制备得到的包装袋和普通市购包装袋中进行测试:
实施例3制备得到的包装袋对果蔬霉菌有良好的抑制性,对大部分真菌病毒也有良好的防护性,经实验证明:用抗菌型果蔬保鲜包装袋的果蔬比用普通保鲜袋的果蔬保存时间延长60%,并且90%以上没有病虫害。

Claims (10)

1.一种抗菌型果蔬保鲜包装袋用母料,其特征在于:母料由以下重量份数的原料制成:
2.根据权利要求1所述的抗菌型果蔬保鲜包装袋用母料,其特征在于:粉料为聚乙烯7042。
3.根据权利要求1所述的抗菌型果蔬保鲜包装袋用母料,其特征在于:母料的制备方法包括以下步骤:
(1)依次加入粉料、聚乙烯蜡,再加入钛白粉,最后加入香草醛和百里酚,搅拌混炼;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料。
4.一种采用权利要求1-3任一所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:由聚乙烯和母料按照重量比为80-90:10-20制成。
5.根据权利要求4所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:聚乙烯为线性聚乙烯和高压聚乙烯按质量比为70:20混合。
6.根据权利要求4所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:聚乙烯为线性聚乙烯1002kw、线性聚乙烯222wt和高压聚乙烯2426H按质量比为40:30:20混合。
7.根据权利要求4所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:包装袋的制备方法包括以下步骤:
(1)依次加入粉料、聚乙烯蜡,再加入钛白粉,最后加入香草醛和百里酚,搅拌混炼;
(2)将步骤(1)得到的物料加入造粒挤出机的料斗内,经单螺杆挤出机加温熔融塑化,挤出造粒,经过风冷热切后用风送至振动筛冷却,筛选,最后送入料斗,得到母料;
(3)将聚乙烯和步骤(2)得到的母料加入料斗内,经过混料机混合均匀,然后进入单螺杆挤出机内升温塑化成熔融状态,被单螺杆挤出机挤出到达模口,通过机头吹胀成管泡,风环冷却定型后,压平,经牵引辊拉卷,得到保鲜薄膜,再在制袋机中制成抗菌型果蔬保鲜包装袋。
8.根据权利要求7所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:步骤(1)中搅拌的转速为1000~1500rpm;步骤(1)中混炼的温度控制在160~190℃,时间控制在5~7分钟。
9.根据权利要求7所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:步骤(2)中挤出造粒的温度为130~160℃。
10.根据权利要求7所述的抗菌型果蔬保鲜包装袋用母料制备的包装袋,其特征在于:步骤(3)中单螺杆挤出机的温度为机筒1区为150~170℃,机筒2区为160~190℃,机筒3区为170~200℃,连接体为180~210℃,机头为190~220℃。
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