CN108677615A - 一种食品包装纸用防油剂及其制备方法 - Google Patents
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Abstract
本发明公开了一种食品包装纸用防油剂及其制备方法,该防油剂的原料包括:阳离子淀粉、聚乳酸、壳聚糖、有机酸、大豆分离蛋白、纤维素、柠檬酸钠、聚氧乙烯脂肪醇醚、聚氧乙烯‑聚氧丙烯共聚物、海藻酸钠、氢化植物油和水。本发明采用壳聚糖和阳离子淀粉、聚乳酸混合制成防油剂,可用于纸张表面施胶,在改善食品包装用纸张的防水性、防油性的同时还可增强纸张的力学强度和柔软度。
Description
技术领域
本发明属于造纸技术领域,具体涉及一种食品包装纸用防油剂及其制备方法。
背景技术
包装在食品行业中占据着非常重要的地位,不论是从安全还是从美观考虑,对食品包装材料的要求都越来越严,目前食品包装的市场份额占包装行业的一半以上。近年来,食品企业对其产品包装材料的选择越来越重视。食品包装材料种类繁多,其中塑料是传统的包装材料,因其重量较轻便、价格低廉和阻隔性好在传统食品包装市场中占有相当大的市场。然而,由于塑料对人体健康是有危害的,在自然界中很难降解,对环境造成严重的污染,未来的食品包装领域将逐渐取缔这一包装材料。近年来,全球环保组织呼吁环保的重要性,开发食品包装纸具有很大的发展空间。纸质食品包装作为一种绿色环保的包装材料是塑料等不可降解的包装材料的最佳替代品,在食品包装领域具有非常广阔的发展前景。
纸张被应用于食品包装时,会遇到不同种类的油以及一些易引起油污的物质,赋予纸张良好的防油效果,可以采用各种工艺手段对纸张进行特殊加工处理,传统的“防油纸”是在纸表面覆盖一层金属箔或塑料薄膜,或用聚乙烯醇、聚偏二氯乙烯、羧甲基纤维素、丁腈胶乳等高分子化合物涂布或浸渍纸张而获得,但这类纸塑包装材料存在难降解和易迁移的危害。近年来采用了含氟防油剂,虽解决了降解和再回收的难题,然而引起的氟危害不容小憩。
发明内容
本发明的目的是提供一种食品包装纸用防油剂及其制备方法。
一种食品包装纸用防油剂,原料以重量份计包括:阳离子淀粉2-5份,聚乳酸1-2份,壳聚糖1-3份,有机酸0.5-1份,大豆分离蛋白2-4份,纤维素1-2份,柠檬酸钠0.2-0.6份,聚氧乙烯脂肪醇醚0.5-1.2份,聚氧乙烯-聚氧丙烯共聚物0.3-0.5份,海藻酸钠1-3份,氢化植物油2-5份,水5-10份。
优选地,所述有机酸选自酒石酸、草酸、苹果酸或枸椽酸。
优选地,所述纤维素选自甲基纤维素、乙基纤维素、羟丙基纤维素或羟丙甲纤维素。
优选地,所述壳聚糖的脱乙酰度为60-70%。
优选地,所述聚氧乙烯-聚氧丙烯共聚物为泊洛沙姆P123。
上述食品包装纸用防油剂的制备方法,包括以下步骤:
步骤1,将阳离子淀粉、聚乳酸、纤维素和海藻酸钠加至水中,加热至70-80℃,搅拌30-40min,冷却到室温,得到混合液A;
步骤2,将壳聚糖、有机酸、柠檬酸钠、大豆蛋白加至混合液A中,搅拌,得到混合液B;
步骤3,将聚氧乙烯脂肪醇醚、聚氧乙烯-聚氧丙烯共聚物、氢化植物油加至混合液B中,分散,即得。
本发明采用壳聚糖和阳离子淀粉、聚乳酸混合制成防油剂,可用于纸张表面施胶,在改善食品包装用纸张的防水性、防油性的同时还可增强纸张的力学强度和柔软度。
具体实施方式
实施例1
一种食品包装纸用防油剂,原料以重量份计包括:阳离子淀粉2份,聚乳酸1份,壳聚糖1份,有机酸0.5份,大豆分离蛋白2份,纤维素1份,柠檬酸钠0.2份,聚氧乙烯脂肪醇醚0.5份,聚氧乙烯-聚氧丙烯共聚物0.3份,海藻酸钠1份,氢化植物油2份,水5份。
其中,所述有机酸为酒石酸和草酸的混合物,酒石酸和草酸的重量比为1:1。所述纤维素为甲基纤维素。所述壳聚糖的脱乙酰度为60-70%。所述聚氧乙烯-聚氧丙烯共聚物为泊洛沙姆P123。
上述食品包装纸用防油剂的制备方法,包括以下步骤:
步骤1,将阳离子淀粉、聚乳酸、纤维素和海藻酸钠加至水中,加热至70-80℃,搅拌30-40min,冷却到室温,得到混合液A;
步骤2,将壳聚糖、有机酸、柠檬酸钠、大豆蛋白加至混合液A中,搅拌,得到混合液B;
步骤3,将聚氧乙烯脂肪醇醚、聚氧乙烯-聚氧丙烯共聚物、氢化植物油加至混合液B中,分散,即得。
将所得防油剂按5wt.%的用量加至表面施胶剂中施涂于基纸表面,表面施胶剂的用量为10g/m2。所得防油纸的抗张强度为3.52kN/m、耐破度为233kPa、防油等级为9级、Cobb60值为21.2g/m2。
实施例2
一种食品包装纸用防油剂,原料以重量份计包括:阳离子淀粉3份,聚乳酸1.5份,壳聚糖2份,有机酸0.7份,大豆分离蛋白3份,纤维素1.5份,柠檬酸钠0.4份,聚氧乙烯脂肪醇醚0.8份,聚氧乙烯-聚氧丙烯共聚物0.4份,海藻酸钠2份,氢化植物油4份,水7份。
其中,所述有机酸为苹果酸。所述纤维素为乙基纤维素和羟丙基纤维素的混合物,乙基纤维素和羟丙基纤维素的重量比为2:1。所述壳聚糖的脱乙酰度为60-70%。所述聚氧乙烯-聚氧丙烯共聚物为泊洛沙姆P123。
上述食品包装纸用防油剂的制备方法,包括以下步骤:
步骤1,将阳离子淀粉、聚乳酸、纤维素和海藻酸钠加至水中,加热至70-80℃,搅拌30-40min,冷却到室温,得到混合液A;
步骤2,将壳聚糖、有机酸、柠檬酸钠、大豆蛋白加至混合液A中,搅拌,得到混合液B;
步骤3,将聚氧乙烯脂肪醇醚、聚氧乙烯-聚氧丙烯共聚物、氢化植物油加至混合液B中,分散,即得。
将所得防油剂按5wt.%的用量加至表面施胶剂中施涂于基纸表面,表面施胶剂的用量为10g/m2。所得防油纸的抗张强度为3.48kN/m、耐破度为224kPa、防油等级为9级、Cobb60值为20.4g/m2。
实施例3
一种食品包装纸用防油剂,原料以重量份计包括:阳离子淀粉4份,聚乳酸1份,壳聚糖2份,有机酸0.8份,大豆分离蛋白3份,纤维素2份,柠檬酸钠0.5份,聚氧乙烯脂肪醇醚0.8份,聚氧乙烯-聚氧丙烯共聚物0.4份,海藻酸钠2份,氢化植物油5份,水8份。
其中,所述有机酸为酒石酸和枸椽酸的混合物,酒石酸和枸椽酸的重量比为1:2。所述纤维素为羟丙基纤维素和羟丙甲纤维素,羟丙基纤维素和羟丙甲纤维素的重量比为1:1。所述壳聚糖的脱乙酰度为60-70%。所述聚氧乙烯-聚氧丙烯共聚物为泊洛沙姆P123。
上述食品包装纸用防油剂的制备方法,包括以下步骤:
步骤1,将阳离子淀粉、聚乳酸、纤维素和海藻酸钠加至水中,加热至70-80℃,搅拌30-40min,冷却到室温,得到混合液A;
步骤2,将壳聚糖、有机酸、柠檬酸钠、大豆蛋白加至混合液A中,搅拌,得到混合液B;
步骤3,将聚氧乙烯脂肪醇醚、聚氧乙烯-聚氧丙烯共聚物、氢化植物油加至混合液B中,分散,即得。
将所得防油剂按10wt.%的用量加至表面施胶剂中施涂于基纸表面,表面施胶剂的用量为10g/m2。所得防油纸的抗张强度为3.57kN/m、耐破度为239kPa、防油等级为9级、Cobb60值为21.6g/m2。
实施例4
一种食品包装纸用防油剂,原料以重量份计包括:阳离子淀粉5份,聚乳酸2份,壳聚糖3份,有机酸1份,大豆分离蛋白4份,纤维素2份,柠檬酸钠0.6份,聚氧乙烯脂肪醇醚1.2份,聚氧乙烯-聚氧丙烯共聚物0.5份,海藻酸钠3份,氢化植物油5份,水10份。
其中,所述有机酸为酒石酸和草酸的混合物,酒石酸和草酸的重量比为1:1。所述纤维素为甲基纤维素。所述壳聚糖的脱乙酰度为60-70%。所述聚氧乙烯-聚氧丙烯共聚物为泊洛沙姆P123。
上述食品包装纸用防油剂的制备方法,包括以下步骤:
步骤1,将阳离子淀粉、聚乳酸、纤维素和海藻酸钠加至水中,加热至70-80℃,搅拌30-40min,冷却到室温,得到混合液A;
步骤2,将壳聚糖、有机酸、柠檬酸钠、大豆蛋白加至混合液A中,搅拌,得到混合液B;
步骤3,将聚氧乙烯脂肪醇醚、聚氧乙烯-聚氧丙烯共聚物、氢化植物油加至混合液B中,分散,即得。
将所得防油剂按10wt.%的用量加至表面施胶剂中施涂于基纸表面,表面施胶剂的用量为10g/m2。所得防油纸的抗张强度为3.61kN/m、耐破度为242kPa、防油等级为9级、Cobb60值为21.8g/m2。
Claims (6)
1.一种食品包装纸用防油剂,其特征在于:原料以重量份计包括:阳离子淀粉2-5份,聚乳酸1-2份,壳聚糖1-3份,有机酸0.5-1份,大豆分离蛋白2-4份,纤维素1-2份,柠檬酸钠0.2-0.6份,聚氧乙烯脂肪醇醚0.5-1.2份,聚氧乙烯-聚氧丙烯共聚物0.3-0.5份,海藻酸钠1-3份,氢化植物油2-5份,水5-10份。
2.根据权利要求1所述的食品包装纸用防油剂,其特征在于:所述有机酸选自酒石酸、草酸、苹果酸或枸椽酸。
3.根据权利要求1所述的食品包装纸用防油剂,其特征在于:所述纤维素选自甲基纤维素、乙基纤维素、羟丙基纤维素或羟丙甲纤维素。
4.根据权利要求1所述的食品包装纸用防油剂,其特征在于:所述壳聚糖的脱乙酰度为60-70%。
5.根据权利要求1所述的食品包装纸用防油剂,其特征在于:所述聚氧乙烯-聚氧丙烯共聚物为泊洛沙姆P123。
6.权利要求1所述的食品包装纸用防油剂的制备方法,其特征在于:包括以下步骤:
步骤1,将阳离子淀粉、聚乳酸、纤维素和海藻酸钠加至水中,加热至70-80℃,搅拌30-40min,冷却到室温,得到混合液A;
步骤2,将壳聚糖、有机酸、柠檬酸钠、大豆蛋白加至混合液A中,搅拌,得到混合液B;
步骤3,将聚氧乙烯脂肪醇醚、聚氧乙烯-聚氧丙烯共聚物、氢化植物油加至混合液B中,分散,即得。
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CN111379195A (zh) * | 2020-04-03 | 2020-07-07 | 山东仁丰特种材料股份有限公司 | 一种防油纸的膜转移施胶方法 |
CN111851136A (zh) * | 2020-07-25 | 2020-10-30 | 吉特利环保科技(厦门)有限公司 | 淀粉基生物无氟的防油剂和制备该防油剂的乳化***及其生产工艺 |
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