National Food Packaging Safety Technical Seminar held recently in Chengdu, Sichuan Province, the meeting with as its theme, the safety of our food packaging ink benzene and other new technologies, new materials, and discuss.
security technologies at the national seminar on food packaging, food packaging participants on the impact of harmful residues in food safety status of proposed ideas. Chinas blood with the blood, and hematopoietic function, damage the nervous system, leading to leukemia, the U.S. FDA listed him as probable carcinogenic chemicals. Thus, in the United States, Western Europe and Japan and other developed countries, expressly provides that in food packaging printing prohibit the use of benzene solvent. However, China still has not clearly defined. In the food packaging film, bag production, inks and adhesives commonly used in the solvent benzene (toluene, xylene) solvents, and no management and supervision to the relevant departments are now determined to strict management level.
plastic packaging materials on food security implications of
plastic packaging materials in China, especially in soft food, medicine compound packaging materials in the last 20 years has been rapid development not only multi-manufacturer, the product also many varieties, the quality has reached a certain level. However, in the packaging industry in the process of rapid development, we focus on scale, output, physical and mechanical properties, resistance to high temperature requirements, anti-media, erosion, etc., and for packaging material itself are still not enough emphasis on health and safety performance, . Therefore, a number of composite packaging material manufacturers, the procurement of raw and auxiliary materials, use and improvement of production conditions, until the finished product testing are all there are some unhealthy, unsafe hidden trouble; many food and drug manufacturers, using the packaging materials for packaging, safety and human health impacts of ill-considered, focused only on fastness, strength, appearance and price, up to care about whether the odor. Overall, the past there was food and drug packaging materials and packaging materials, hygiene and safety of the potential impact on the Earths environment had paid little attention. Thus, my health safety quality packaging materials with the world advanced level, there is a larger gap. Close in 2023, the state of food hygiene and safety issues of their own supervision and inspection of the implementation of their food project, implemented a QS certification and market access system. Began in June 2005, but also packaging materials for food hygiene and safety issues of their own monitoring and inspection, the media exposed a number of food packaging bag of benzene exceeded the incident has aroused great concern the whole society. This is our government to implement a people-oriented, consumer protection, safety and health an important measure of social progress.
the复合包装袋on the printing ink, mostly containing toluene, xylene, organic solvent-based gravure printing ink, of which there are two aspects of the health and food safety or human health are closely related:
Article One benzene solvent. In the GB-9685 standard are not allowed to be used, but the reality still is widely used, that it is not desirable. Toluene, xylene boiling point of more than 110 ℃, in the printing process, the drying temperature is only 70 ℃ -80 ℃, rarely more than 90 ℃, and the speed quickly, up to 150 meters per minute or 250 meters, solvent can not be completely cleared, there will always be a part of the left in the ink. If absorbed, this would damage the bodys nervous system and destruction of human hematopoietic function, causing vomiting, insomnia, anorexia, fatigue, leukopenia, resistance to a permanent decline in the typical symptoms of benzene poisoning in occupational diseases (such as the footwear industry, luggage industry, paint industry, decoration industry, etc.) account for a large proportion.
second ink used in paints, dyes, there are heavy metals (lead, cadmium, mercury, chromium, etc.) and aniline or fused ring compounds and other substances. Heavy metals of lead in the hinder childrens physical development and intellectual development. Of mercury on the nervous, digestive, endocrine system and the kidneys will produce harmful effects, and, in particular the more harmful to the fetus and infant, but also damage to the brain leading to death. Cadmium can cause bone damage, and aniline dyes, or fused ring is a clear carcinogenic substances, a big threat to human health. Therefore, bags printing ink of the harmful substances and the health impact of food on human health effects are obvious and serious.
In addition to the base film and ink, lamination adhesive hygiene and safety are equally important. In the GB-9685 standard, allowing only horse anhydride modified polypropylene and polyurethane adhesives are being used in food packaging, but with benzene as solvent, a single-component pressure-sensitive adhesive is not allowed to use.
benzene packaging printing technology is the future direction of
At present, China flexible packaging printing ink close to 5 million tons, of which about 40% of chlorinated polypropylene ink for more than about 30% or more polyamide inks, polyester polyurethane ink accounting for nearly 20%, others such as alcohol and other oil-based ink less than 5%. Polyamide ink earliest industrialization in China, due to the existence of poor heat resistance, oil resistance is poor, the shortcomings of poor water resistance, usage diminishing each year. Because of BOPP CPP ink has good adhesion fastness has become the largest variety of Chinas residual chlorine, as well as toluene and other aromatic hydrocarbons have been used as solvent may cause the food of pollution and does not meet environmental requirements, bringing a lot of unsafe sex. Polyester polyurethane ink because of its modified varieties, wide range of application, temperature resistance, excellent water resistance, high gloss printing, toxicity is small, has grown rapidly, is gradually accelerating the pace of replacing chlorinated polypropylene ink. Although the alcohol-soluble ink is seldom used now, but its growth rate is accelerating, more and more enterprises to adopt alcohol-soluble ink and the two-component polyurethane adhesive used in combination to reduce the use and emissions of toluene.
the safety of food packaging, packaging technology, enterprises from the source of that protection, the environmental assessment of benzene ink largely achieved non-toxic harmless, from the perspective of food safety technology, it should be said to be a development direction.
At present, the types of foods on the market more and more, but many did not use green packaging green. Green packaging should be environmentally friendly packaging materials, printing inks and adhesives. The 21st century is the century environmental protection, environmental issues become increasingly important as resources and energy tenser and tenser. To build a circular economy and society and take the road of sustainable development to become the focus of global concern and urgent tasks, and become a business strategy and human activities criteria. Chinas packaging industry in the fast-growing at the same time, should pay attention to health and environmental protection, actively promoting health packaging benzene printing technology to improve the food packaging industry, the overall level of technology to reduce the harmful substances in packaged food and consumer health and eco-environmental impacts, allow consumers to rest assured that the food itself, but also for food packaging have confidence in the health situation, which requires the joint efforts of the whole society.
使用苯的印刷技术将成为主流
国家食品包装安全技术研讨会近日在成都举行，四川省，与“他们的食物，健康包装，印刷苯为主题，我们的食品包装油墨苯和其他新技术，新材料的安全，并讨论”会议。
在食品包装上，关于食品安全状况提出的意见有害残留影响食品包装参加全国研讨会的安全技术。中国的食品包装的塑料材料很难在市场上的安全局势难以许多食品塑料与该国的粮食安全，卫生和环保要求的包装材料。近年来，在整个采样袋合格率普遍较低，仅为50％-60％，合格率。失败主要是由于过量苯残留物。不久前，中国中央电视台“每周质量报告”播出兰州“有毒奶粉”事件，甲苯，二甲苯溶液残留物超标食品包装样本高达50％的失败率。大苯溶剂的毒性，如果皮肤或血液，苯类溶剂残留的渗透可能会损害人的与血还血，造血功能，会损害神经系统，导致白血病，美国FDA列入可致癌化学品他。因此，在美国，西欧和日本等发达国家，明文规定在食品包装印刷禁止苯类溶剂的使用。但是，中国还没有明确的界定。在食品包装薄膜，制袋生产，油墨和普遍使用的溶剂苯（甲苯，二甲苯）溶剂，没有管理和监督相关部门粘合剂现在决心以严格的管理水平。
对粮食安全的影响塑料包装材料
在中国塑料包装材料，在过去20年来，特别是在软食品，医药复合包装材料得到了快速发展，不仅多的制造商，产品也有很多品种，质量达到一定的水平。然而，包装业在快速发展过程中，我们在规模，产量，物理机械性能的重点，耐高温的要求，反媒体，水土流失等，对包装材料本身仍不够重视关于健康和安全性能。因此，复合包装材料制造商数目，原辅材料，使用和生产条件的改善采购到成品检验，都存在一些不健康，不安全的隐患，很多食品和药品制造商，使用的包装材料包装，安全和考虑不周，只牢度，强度，外观和价格的重点，到保健人类健康的影响是否气味。总体而言，过去有食品和药品包装材料，包装材料，卫生和对地球环境的潜在影响安全的gz很少。因此，我的健康安全质量与世界先进水平的包装材料，有较大的差距。在2023年关闭，在食品卫生和自己的监督和他们的食品项目的实施情况进行检查国家安全问题，实施了QS认证和市场准入制度。 2005年6月开始，而且对食品卫生和自己的监测和检查包装材料的安全问题，媒体曝光的食品包装袋苯数量超过了事件引起极大的gz整个社会。这是我们政府实施以人为本，消费者保护，安全和健康是社会进步的重要举措。
对油墨复合包装袋，大多含有甲苯，二甲苯，有机溶剂型凹印油墨，其中有两个健康和食品安全和人类健康密切相关的方面：{dy}条
溶剂苯。在的GB - 9685标准的不准使用，但现实仍然被广泛使用，这是不可取的。甲苯，二甲苯沸点超过110℃，在印刷过程中，干燥温度只有70℃-80℃，很少超过90℃以上，速度快，高达每分钟150米或250米，溶剂不能wqqc，总会有一部分是留在墨。如果吸收，会损害人体的神经系统和造血功能的人类破坏，引起呕吐，sm，食欲不振，乏力，白细胞减少，抗者在职业病苯中毒的典型症状直线下降（如制鞋业，箱包业，油漆业，装饰业等）的占了很大比例。
第二墨水涂料，染料使用的，有重金属（铅，镉，汞，铬等）和苯胺或稠环化合物和其他物质。在影响到儿童的身体发育和智力发展造成重金属。汞对神经，消化，内分泌系统和肾脏会产生有害影响，特别是更为有害的胎儿和婴儿，也损害到大脑，导致死亡。镉会造成骨骼损害，并，苯胺染料或稠环是一个明显的致癌物质，一大威胁人类健康。因此，袋的有害物质的油墨，对人体健康影响的食品对健康的影响是明显和严重。
除了基膜和油墨，复合胶粘剂卫生和安全同样重要。在的GB - 9685标准，只允许马酸酐改性聚丙烯和聚氨酯胶粘剂被用于食品包装，但苯为溶剂，单组分压敏胶是不允许使用。
苯包装印刷技术是未来的方向
目前，中国软包装印刷油墨接近5万吨，其中约40％的氯化聚丙烯油墨超过30％或以上的聚酰胺油墨，聚酯型聚氨酯油墨占近20％，其他如酒精和其他石油为基础的油墨不到5％。聚酰胺油墨在中国最早工业化，由于存在耐热性差，耐油性差，耐水性差的缺点，使用情况逐年减少。由于人民党对BOPP油墨附着牢度好，已成为中国的电流消耗{zd0}的品种，但由于油墨生产，与人们的余氯，以及甲苯等芳香族碳氢化合物已被用作溶剂可能引起污染的食品和不符合环保要求，带来了很多不安全的性行为。聚酯由于其改性品种，应用范围广，耐温性，优良的耐水性聚氨酯油墨，印刷光泽度高，毒性小，发展迅速，正逐渐加快取代氯化聚丙烯油墨的步伐。虽然醇溶油墨现在很少使用，但其发展速度加快，越来越多的企业采用醇溶油墨与双组分聚氨酯粘合剂结合使用，减少甲苯的使用和排放。
在食品包装，包装技术，企业从该保护源的安全，环境评估，苯油墨大体上实现md无害，从食品安全的技术角度来看，应该说是一个发展方向。
目前，市场上越来越多，但许多没有使用绿色环保包装食品的种类。绿色包装应环保包装材料，印刷油墨和粘合剂。二十一世纪是环保世纪，环境问题日趋重要，资源，能源更趋紧张。要建立循环经济和社会，走可持续发展道路成为全球gz的焦点和紧迫的任务，并成为企业战略和人类活动的准则。中国在快速增长的同时，要重视健康和环境保护，积极推广健康包装苯印刷技术，提高食品包装行业，包装行业，技术的整体水平，减少包装食品和有害物质消费者的健康和生态环境的影响，让消费者放心，食品本身，而是用于食品包装也有信心，健康状况，这需要全社会的共同努力。
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