CN1606524A - 使用面粉的用于一次性食品容器的组合物 - Google Patents

使用面粉的用于一次性食品容器的组合物 Download PDF

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CN1606524A
CN1606524A CNA028255178A CN02825517A CN1606524A CN 1606524 A CN1606524 A CN 1606524A CN A028255178 A CNA028255178 A CN A028255178A CN 02825517 A CN02825517 A CN 02825517A CN 1606524 A CN1606524 A CN 1606524A
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金永植
崔荣
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10Applying counter-pressure during expanding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38Packaging materials of special type or form
    • B65D65/46Applications of disintegrable, dissolvable or edible materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/3402Details of processes or apparatus for reducing environmental damage or for working-up compositions comprising inert blowing agents or biodegradable components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
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    • B65D65/38Packaging materials of special type or form
    • B65D65/46Applications of disintegrable, dissolvable or edible materials
    • B65D65/466Bio- or photodegradable packaging materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L99/00Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02Cellulose; Modified cellulose
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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Abstract

本发明涉及使用面粉的用于一次性食品容器的组合物。根据本发明的用于一次性食品容器的组合物由作为主要原料的面粉、木薯粉和海萝,作为辅料的明矾和甘油,作为粘结剂的纸浆或棉纱,以及作为发泡剂的碳酸氢钠组成。根据本发明的制备一次性食品容器的方法为:将主要原料和辅料混合、凝胶化、通过加热/加压模具发泡、以及涂覆。根据本发明的一次性食品容器由作为主要原料的经济型天然材料形成,所以重量轻,不易损坏,并且不容易因环境温度而收缩。

Description

使用面粉的用于一次性食品容器的组合物
[技术领域]
本发明是关于使用面粉等天然材料的用于一次性食品容器的组合物和制造一次性食品容器的方法。更具体地说,本发明的一次性食品容器以面粉或木薯粉或海萝以及纸浆或棉纱为主要原料,以碳酸氢钠、明矾和甘油为辅料形成。根据本发明的一次性食品容器通过将溶解在水中的主要原料和辅料混合、凝胶化、在高温/高压模具内发泡、并涂覆而制备。
[背景技术]
目前广泛使用的一次性容器大多数是通过将聚苯乙烯等合成树脂发泡及压模而形成,一些是通过在作为主要原料的纸的表面喷涂合成树脂而形成。
随着快餐食品占现代人饮食生活的比例增加,一次性容器的使用量也是逐年增加。可是这种传统容器中含有对人体有害的化学成分,并且,随着容器使用量的增加,容器使用后的处理问题日益严重。
因此,最近积极开展了用从谷物淀粉或小麦粉、谷物的皮等等之中得到的天然高分子材料替代聚苯乙烯的研究开发。利用谷物粉的示例有把由小麦面粉、淀粉、碳酸氢钠和食盐等混合得到的坯料模塑成形、冷冻、表面涂敷的方法(韩国专利第96-0006565号),以及将以谷物淀粉和小麦面粉为主要原料且以糖、香料、酵母等为辅料在适当温度的纯水中混合所得到的坯料熟化、挤压、模塑成形、冷冻干燥的方法(韩国专利第99-0047173号)等。利用谷物的皮的示例有把稻、大麦、狐尾小米、印度小米等的粉碎的皮,水和淀粉混合,模塑成形,然后涂敷得到最终产品的方法(韩国专利第99-0055567号),和以玉米杆和各种谷类皮粉碎后得到的植物颗粒为基本原料与食用明胶混合,用模塑成形机挤压得到最终产品的方法(韩国专利第99-0037967号)等。
可是这些制品沉重、易碎、由于受外部气温的影响会造成收缩,所以在使用上受到限制。即使为了解决这些问题而使用天然高分子材料为主要原料,但在许多情况下必须要使用不能分解的添加剂。因此,仍然存在分解性问题,价格也高,所以还没有达到实用的阶段。
[发明内容]
因此,本发明的目的是提供用于包装食品的一次性容器,其价格便宜、重量轻、不易坏、不易变形,并且利用天然材料取代引起环境污染、对人体有害的聚苯乙烯来制备。
[具体实施方式]
为了达到上述目的,本发明的一次性容器使用面粉或木薯粉或海萝(funori)代替聚苯乙烯作为主要原料,使用纸浆或棉纱作为粘结剂。使用碳酸氢钠和明矾作为辅料,为了使制品具有一定的柔韧性而添加了甘油。
上述作为主要原料的面粉或木薯粉或海萝与作为粘结剂的纸浆或棉纱的混合比例优选以3~7∶7~3的重量比例混合。最优选的是,面粉、木薯粉和海萝的混合物与粘结剂的比率为7∶3。粘结剂的比例过高会导致制品的发泡成形困难、制品硬化,而粘结剂的比例过低会导致制品的强度低而易碎。混合的其他原料优选为1~2重量%的碳酸氢钠、1~2重量%的明矾和1~2重量%的甘油。
根据本发明用上述材料制造一次性食品容器的方法如下。
以预定比例把面粉或木薯粉或海萝与纸浆或棉纱混合以制备主要混合物,把辅料如碳酸氢钠、明矾和甘油溶于水中,并与主要混合物混合。把上述混合物在100~120℃下通入蒸汽或沸腾以凝胶化。把上述凝胶化的坯料在加热/加压模具中发泡。优选地,在上述加热加压成形时使模具的加热线圈温度保持在130~220℃。而且,在上述加热加压成形时加热加压的时间周期优选为1或2分钟。使上述成形后的容器分离后,将其用生物分解性涂敷剂喷涂或将其浸渍在涂敷剂中,并干燥。
下面,通过下列实施方式详细说明本发明一次性食品容器的制造过程。
实施例1
把面粉和棉纱以70∶30(70g∶30g)的比例混合来制备原料1。在70g水中溶解1-2g的明矾和1-2g的甘油,将此得到的溶液与上述原料1以相同比例混合搅拌,并在蒸汽釜中在100~120℃的温度下通入蒸汽而制成粥状物。把该粥状物与1-2g的碳酸氢钠混合,使模具的加热线圈温度保持在130~220℃,然后向模具中注入一定量的该粥状物。闭合模具并加压1-2分钟,使其发泡成形和干燥。在所得容器的内侧和外侧喷涂生物分解性涂敷剂后使其干燥。从上述干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例2
把面粉和纸浆以70∶30(70g∶30g)的比例混合来制备原料1。在70g水中溶解1-2g的明矾和1-2g的甘油,将此得到的溶液与上述原料1以相同比例混合搅拌,并在蒸汽釜中在100~120℃的温度下通入蒸汽而制成粥状物。把该粥状物与1-2g的碳酸氢钠混合,使模具的加热线圈温度保持在130~220℃,然后向模具中注入一定量的该粥状物。闭合模具并加压1-2分钟,使其发泡成形和干燥。在所得容器的内侧和外侧喷涂生物分解性涂敷剂后使其干燥。从上述干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例3
把木薯粉和棉纱以70∶30(70g∶30g)的比例混合来制备原料1。用与实施例1相同的方法制造容器,从干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例4
把木薯粉和纸浆以70∶30(70g∶30g)的比例混合来制备原料1。用与实施例1相同的方法制造容器,从干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例5
把海萝和棉纱以70∶30(70g∶30g)的比例混合来制备原料1。用与实施例1相同的方法制造容器,从干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例6
把海萝和纸浆以70∶30(70g∶30g)的比例混合来制备原料1。用与实施例1相同的方法制造容器,从干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例7
把木薯粉和纸浆以80∶20(80g∶20g)的比例混合来制备原料1。用与实施例1相同的方法制造容器,从干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
实施例8
把木薯粉和棉纱以80∶20(80g∶20g)的比例混合来制备原料1。用与实施例1相同的方法制造容器,从干燥后的容器切出宽度1cm、长度3cm的试样,测量其拉伸强度,其结果示于下述表1中。
表1
试验项目                                实施例编号
1  2  3  4  5  6  7  8
拉伸强度kgf/15mm 横向 10.8  9.44  8.04  8.42  7.87  7.87  5.12  6.20
纵向 14.4  11.2  11.0  11.3  10.9  10.9  5.66  7.74
工业实用性
本发明通过将天然材料发泡制备一次性容器,以解决传统的基于天然材料的一次性容器的弱点,即易碎或变形以及重量重的问题。从拉伸强度试验的结果可以看出,本发明提供了一种环境友好的一次性容器,其重量轻,且不易损坏或变形。

Claims (6)

1.一种制造一次性容器的方法,包括如下步骤:
将作为主要原料的面粉或木薯粉或海萝以及纸浆或棉纱与溶解于水中的作为辅料的碳酸氢钠、明矾和甘油进行混合和搅拌;
将该混合物加热并凝胶化;
在模具中加压发泡成型该凝胶化的混合物;
将成型的容器用涂敷剂喷涂或将其浸渍在涂敷剂中,并干燥该容器。
2.如权利要求1所述的方法,其中,所述面粉或木薯粉或海萝与纸浆或棉纱的重量比为7∶3。
3.如权利要求1所述的方法,其中,相对于100重量份的所述主要原料分别加入1-2重量份的碳酸氢钠、明矾和甘油。
4.如权利要求1所述的方法,其中,使主要原料和辅料的混合物凝胶化的步骤包括在蒸汽釜中于100-120℃的温度下使所述混合物沸腾或通入蒸汽。
5.如权利要求1所述的方法,其中,当凝胶化混合物在模具中加压发泡成型时,模具加热线圈的温度保持在130-220℃。
6.一种用于一次性容器的组合物,包括:70重量份的从面粉、木薯粉和海萝的组中选择的一种或多种原料;30重量份的从纸浆和棉纱的组中选择的一种或多种原料;1-2重量份的碳酸钠苏打;1-2重量份的明矾;和1-2重量份的甘油。
CNB028255178A 2001-12-19 2002-12-18 一次性容器制造方法和一次性容器制造用组合物 Expired - Fee Related CN1264733C (zh)

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KR100339789B1 (ko) * 1999-09-15 2002-06-07 고두모 열가소성 전분의 제조방법 및 이 방법에 의해 얻어진 열가소성 전분으로부터 분해성 플라스틱 마스터배치를 제조하는 방법
KR100368048B1 (ko) * 1999-12-09 2003-01-14 에코니아 주식회사 성형품 제조용 조성물 및 이를 이용한 성형품 제조 방법

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US20050146082A1 (en) 2005-07-07
JP3879855B2 (ja) 2007-02-14
KR100408972B1 (ko) 2003-12-11
WO2003051738A1 (en) 2003-06-26
US7037454B2 (en) 2006-05-02
CN1264733C (zh) 2006-07-19
AU2002358335A1 (en) 2003-06-30
EP1456094A4 (en) 2008-05-14
JP2005511442A (ja) 2005-04-28
EP1456094A1 (en) 2004-09-15

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