德国塑料市场发展概况

2007年，英国塑料瓶的回收量达到1819971吨，比2006年的108453吨增长了68％。据估计．英国家庭每年的塑料瓶消耗量为525300瓶．以此计算，2007年英国塑料瓶的回收率达到了35％．相对于2006年20％的回收率有了大幅上升。     

韩国塑料瓶今后将全部为无色透明状

1月14日，韩国环境部宣布其与韩国塑料瓶资源回收协会一起推动生产无色透明塑料瓶的工作。     

Honest公司推出新型塑料茶饮包装

近日，Honest茶公司推出了一种可用于包装有机即饮茶饮料的新型塑料瓶，这种塑料瓶不仅棱条少，使人们看上去更加圆滑，而且很容易突出该种有机茶饮料的保健、低糖特点，十分引人注目。     

美国推出新型可生物降解PET塑料瓶

美国亚利桑那州菲尼克斯消息，塑料瓶污染问题有望得到彻底解决。位于美国亚利桑那州菲尼克斯的ENSOBottles公司最近推出了一款可生物降解的PET塑料瓶，这将改变我们对塑料的一贯认知。     

Honest公司推出新型塑料茶饮包装

近日，Honest茶公司推出了一种可用于包装有机即茶饮料的新型塑料瓶，这种塑料瓶不仅棱条少，使人们看上去更加圆滑，而且很容易突出该种有机茶饮料的保健、低糖特点，十分引人注目。     

利乐公司全球首推无菌纸瓶

日前，食品及饮料加工和包装系统供应商利乐公司宣布，推出世界第一个无菌纸瓶——利乐Aptiva无菌包一装。 据悉，利乐Aptiva无菌包装是将纸筒瓶身和塑料顶部及螺旋盖结合起来，专门用以替代塑料瓶。与无菌塑料瓶（APET）和无菌高密度聚乙烯塑料瓶（AHDPE）的包装线相比，可以给饮料生产厂家节省20％～50％的运营费用，以相同的产能计算，总投资可以节省50％强。     

可回收新型塑料茶饮包装问世

近日，Honest茶公司推出了一种可用于包装有机即饮茶饮料的新型塑料瓶，这种塑料瓶不仅棱条少，使人们看上去更加圆滑，而且很容易突出该种有机茶饮料的保健、低糖特点，十分引人注目。     

Honest公司推出新型塑料茶饮包装

近日，Honest公司推出了一种可用于包装有机即饮茶饮料的新型塑料瓶，这种塑料瓶不仅棱条少。让人们看上去更加圆滑，而且很容易突出该种有机茶饮料的保建、低糖特点，十分引入注目。据悉，这种塑料茶饮包装不仅可与玻璃容器相媲美，而且能100％的回收利用。Honest公司总裁SethGoldman表示，这种创新性的包装采用了一种新的灌装技术，因而消除了在大多数热灌装塑料瓶上常见的热膨胀棱，[第一段]     

美国新技术能使瓶内装食物保持新鲜

美国科学家用等离子体蒸汽沉淀技术在塑料瓶外形成一层柔软的聚酯薄膜，能够使瓶内装的食物保持新鲜。据介绍，这种塑料表面镀层能够使氧气减少10％以上。镀层类似石英，厚度小于3毫米，并且该塑料瓶在回收时不需要作特殊处理。     

药用塑料瓶中的“学问”

药用塑料瓶具有广阔的发展前景,我们既要充分肯定这些年来我国在推进药用塑料瓶发展工作中取得的成绩,又要冷静看到当前药用塑料瓶发展中的各种问题。据有关资料显示,全球对药用塑料瓶的需求量将以每年4.3%的速度递增。其中,中国由于不断扩大的药物生产能力,其药用塑料瓶的增长速度位居榜首。据悉,我国医药包装年产值在150亿元左右,相对的,药用塑料瓶这一容易被忽视却涨势迅猛的分支,已然成为诸多印包企业"觊觎"的一方领域。     

Migration of bisphenol A from plastic baby bottles,baby bottle liners and reusable polycarbonate drinking bottles

Human exposure to bisphenol A (BPA) has recently received special attention. It has been shown that exposure to BPA may occur through the consumption of beverages or foods that have been in contact with polycarbonate (PC) plastic containers or epoxy resins in food packaging. A BPA migration study was conducted using a variety of plastic containers, including polycarbonate baby bottles, non-PC baby bottles, baby bottle liners, and reusable PC drinking bottles. Water was used to simulate migration into aqueous and acidic foods; 10% ethanol solution to simulate migration to low- and high-alcoholic foods; and 50% ethanol solution to simulate migration to fatty foods. By combining solid-phase extraction, BPA derivatization and analysis by GC-EI/MS/MS, a very low detection limit at the ng l^?1 level was obtained. Migration of BPA at 40°C ranged from 0.11 µg l^?1 in water incubated for 8 h to 2.39 µg l^?1 in 50% ethanol incubated for 240 h. Residual BPA leaching from PC bottles increased with temperature and incubation time. In comparison with the migration observed from PC bottles, non-PC baby bottles and baby bottle liners showed only trace levels of BPA. Tests for leachable lead and cadmium were also conducted on glass baby bottles since these represent a potential alternative to plastic bottles. No detectable lead or cadmium was found to leach from the glass. This study indicated that non-PC plastic baby bottles, baby bottle liners and glass baby bottles might be good alternatives for polycarbonate bottles.     

Sorghum seed storage in Purdue Improved Crop Storage (PICS) bags and improvised containers

Seed storage is a major challenge for smallholder farmers in developing nations. Purdue Improved Crop Storage (PICS) bags effectively control the postharvest insect pests of cowpea and other crops. Farmers, encouraged by this success, have begun to expand the use of PICS bags for storing other crops. Little is known about how sorghum seed, one of these important crops, fares when stored under hermetic conditions. Accordingly, we stored sorghum seed for six months in either airtight containers (PICS bags or sealed plastic bottles) or open ones (woven polypropylene bags and open plastic bottles). Overall, sorghum seed stored in PICS bags and in sealed plastic bottles maintained its initial moisture level, germination rate and seed weight. Porous polypropylene bags and open plastic bottles lost moisture over six months. We conclude that sorghum seed can be safely stored in hermetic containers without any loss of quality for extended periods of time.     

Safe storage of maize in alternative hermetic containers

Purdue Improved Crop Storage (PICS) bags have been developed and extended as a way to address grain storage issues faced by smallholder farmers in developing nations. A hermetic technology, PICS bags reduce insect damage to grain significantly while maintaining its quality for many months or longer. Farmers with varying and often small volumes of grain at harvest, may still benefit from alternatives to PICS bags for storing their grain. We evaluated plastic bottles, which may be hermetically sealed, for storing maize grain. Clean maize grain was stored for eight months in sealed and unsealed plastic bottles with half of these bottles being infested by maize weevil (Sitophilus zemais, Motschulsky). Oxygen levels in the bottles were monitored throughout the trial and grain was assessed for moisture content, insect damage, germination rate and insect population size when the study was terminated. Sealed bottles preserved grain quality significantly better than unsealed, infested bottles and as well as non-infested unsealed containers. Plastic soda bottles can be used as hermetic containers for safely storing grain.     

Increased migration levels of bisphenol A from polycarbonate baby bottles after dishwashing, boiling and brushing

Baby bottles are often made of polycarbonate plastic. Impurities remaining in the bottle from the monomer bisphenol A can migrate from the plastic bottles into baby food, thereby causing a health concern. Previous migration testing of new baby bottles showed only trace migration levels of the substance. In the present work, polycarbonate baby bottles were subjected to simulated use by dishwashing, boiling and brushing. Migration testing performed with both new and used bottles revealed a significant increase in migration of bisphenol A due to use. This finding might be explained by polymer degradation. Bisphenol A was determined in 200-ml samples of water food simulant by a method based on solid-phase extraction followed by gas chromatography coupled with mass spectrometry. The detection limit was 0.1 μg l^-1. Twelve different polycarbonate baby bottles were tested by filling them with hot water (100°C) for 1 h. The mean bisphenol A level from new bottles was 0.23 + -0.12 μg l^-1, while the mean levels from bottles subjected to simulated use were 8.4 + -4 μg l^-1 (dishwashed 51 times) and 6.7 + -4 μg l^-1 (dishwashed 169 times), respectively. None of the bottles released bisphenol A at levels that exceed the recently established provisional tolerable daily intake (0.01 mg kg^-1 body weight/day) in the European Union.     

聚酯瓶包装设计与工艺新的开发意念

轻巧、便于携带、不易破碎、可再利用的聚酯PET瓶,已成为当今食品和饮料包装发展的新趋势。然而,随着人们对环境保护的愈加重视,这种以PET塑料为原料生产的包装容器,如何跟上社会的发展步伐?生产商所采取的态度如何?在工艺技术上,现今有哪些创新的生产概念?以下辑录了各种崭新PET瓶的设计与注塑吹瓶的生产工艺,与读者共同探讨国际先进的技术发展潮流。     

塑料瓶高速自动理瓶机的研究

高速自动理瓶机能将杂乱无章的塑料瓶整理好并送到灌装机输送线上。本文介绍了理瓶机各主要机构的性能及原理。     

PET热灌装瓶用塑料防盗盖的选用

对PET热灌装瓶的塑料防盗盖的类型和性能作了简单介绍;并对其使用范围作了说明.     

Safety and quality of plastic food packaging materials: validation of a modified chemical inertness test method for refillable poly(ethylene terephthalate) bottles

The increased use of refillable poly(ethylene terephthalate) (PET) bottles as packaging for soft drinks has prompted us to investigate the effect of sorption of artificially introduced chemical contaminants into refillable PET bottles in order to establish a practical and easy-to-apply test procedure to evaluate their chemical inertness. For this evaluation, quick laboratory procedures, which focus on the interaction of PET bottle wall strips in place of actual bottles with a selection of model contaminants representing the myriad of chemicals, are proposed. The first objective of this study was to validate a modified quick chemical inertness test method for refillable bottles by comparing the results of sorption into PET strips with those of tests using actual PET bottles. A further objective was to investigate the stability of refillable PET bottles which were stored under unfavorable conditions, in relation to the chemical inertness behavior of the material. The results indicate the suitability of the modified quick test as it satisfactorily simulates contamination of refillable PET bottles. Moreover, storage of these bottles under unfavorable conditions does not have an adverse effect on the chemical inertness behavior of the plastic material.     

Quality and safety aspects of reusable plastic food packaging materials: influence of reuse on intrinsic properties

The aim of the project was to develop a comprehensive package of quality assurance criteria for use by the industry and by regulatory authorities to ensure the quality and safety-in-use (sensory, microbiological and chemical safety) of reused plastics for food packaging. The paper describes the investigations into potential adulteration effects by reuse on the intrinsic properties of plastics in more detail. The plastic articles investigated were bottles of polyethylene terephthalate (PET) or polycarbonate (PC) and vending cups of polypropylene (PP). The influence of repeated use on the migration of plastic constituents, degradation products of plastic additives, barrier properties and surface characteristics were investigated. The overall conclusion was that the investigated intrinsic properties of the refillable articles were not significantly influenced by repeated use. Only the hydrophobicity of the refillable PC and PP articles seemed to be influenced by repeated washing. PC bottles washed 15 times were significantly less hydrophobic than unwashed bottles.     

Sealing and Storage Position Effects on Wine Evolution

Sealing system and bottle storage position effects on the evolution of white and red wines were analyzed. The sealing systems were natural‐cork stopper, colmated‐cork stopper, agglomerated‐cork stopper, polyurethane‐powdered‐cork (PPC) stopper, plastic stopper, and metal screw‐top. Chemical analysis and sensory analysis showed that wine is better preserved when the bottles are kept horizontally. The sealing systems that allowed the most suitable evolution were the natural‐cork stopper, the colmated‐cork stopper, and the PPC stopper. The agglomerated cork produced faster wine oxidation when the bottles were kept vertically. The plastic cork and the screw‐top allowed oxidation in the wine more quickly than the other systems.