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不同用途的包装袋需要不同的制作工艺

发布日期:2022-02-05 作者:www.jnsuliao.com 点击:

  油中的脂肪酸在自动氧化过程中可以形成氢过氧化物。非常不稳定。即使在低温下,它也会断裂和歧化,并在储存过程中防止静电真空包装袋。形成不同的碳基化合物、羟基化合物和短链脂肪酸。其中一些成分可能会进一步氧化,如醛可以进一步氧化成相应的酸。除了醛和酸,脂肪氧化的分解产物还发现了醇、酮、醋、内醋、芳香族和脂肪族化合物。这些分解产有明显的不良气味。即使含量很低,脂肪也会产生异味,从而降低工厂食品的价值。
 
  The fatty acids in oil can form hydroperoxides in the process of automatic oxidation.Very unstable.Even at low temperature,it will break and disproportionate,and prevent electrostatic vacuum packaging bag during storage.Different carbon based compounds,hydroxyl compounds and short chain fatty acids are formed.Some of these components may be further oxidized.For example,aldehydes can be further oxidized to corresponding acids.In addition to aldehydes and acids,alcohols,ketones,vinegar,internal vinegar,aromatic and aliphatic compounds were also found in the decomposition products of fat oxidation.These decomposition products have obvious bad smell.Even if the content is very low,fat will produce peculiar smell,which will reduce the value of factory food.
  如果冷冻食品包装袋的热封强度不够或虚封,轻微冲击会导致密封开裂;如果热封温度过高,很容易损坏热封层,削弱密封线的材料强度。一旦受到强烈振动或冲击,很容易造成袋子破损和大面积腐烂,无法实现对内部食品的有效保护。
 
  If the heat sealing strength of frozen food packaging bag is insufficient or false,slight impact will lead to seal cracking;If the heat sealing temperature is too high,it is easy to damage the heat sealing layer and weaken the material strength of the sealing line.Once subjected to strong vibration or impact,it is easy to cause bag damage and large-area decay,which can not realize the effective protection of internal food.
 
  袋子正朝着特殊功能的方向发展。高阻隔复合材料将继续增加市场容量,包装袋制造商加工简单,阻隔氧气,水蒸气性能强,提高货架寿命是未来超市食品软包装的主流。经过一段时间的降解塑料袋,填埋废物的化学性能和机械性能在短期内发生了巨大的变化,是一种完全无害的可生物降解碎片,如土壤环境容量,减少浪费,控制环境污染,回归自然环境。
 
  Bags are developing towards special functions.High barrier composite materials will continue to increase market capacity.Packaging bag manufacturers have simple processing,strong performance of blocking oxygen and water vapor,and improving shelf life is the mainstream of supermarket food flexible packaging in the future.After a period of degradation of plastic bags,the chemical and mechanical properties of landfill waste have changed greatly in a short time.It is a completely harmless biodegradable debris,such as soil environmental capacity,reduce waste,control environmental pollution and return to the natural environment.
 
  包装袋制造商的包装袋印刷图片规划应选择少色和单色元素,尽量避免完整版本的印刷图片。在食品包装袋中选择印刷油墨时,不要使用气味较大的表面印刷油墨。不要使用含杂质的高沸点溶剂,如焦油苯、混合苯和回收溶剂。食品包装袋不应使用高气味的单组分PS复合粘合剂。食品包装袋复合时选择的内膜数据应检查是否有气味,不得使用填充PE膜作为复合内基材。
 
  The packaging bag manufacturer shall select less color and monochrome elements in the packaging bag printing picture planning,and try to avoid the full version of the printed picture.When selecting printing ink in food packaging bags,do not use surface printing ink with strong smell.Do not use high boiling solvents containing impurities,such as tar benzene,mixed benzene and recovered solvents.Food packaging bags shall not use high odor single component PS composite adhesive.When compounding food packaging bags,the selected inner membrane data shall be checked for odor,and the filled PE film shall not be used as the composite inner substrate.
 
  防静电真空包装袋的化学氧化是指真空包装袋与空气中的氧气或其他物质释放的氧气接触。在人们的生活中,随着包装行业的不断发展。真空包装袋的使用越来越普遍。使用真空包装袋时,应注意真空包装袋的化学氧化。
 
  Chemical oxidation of anti-static vacuum packaging bag refers to the contact between the vacuum packaging bag and oxygen in the air or oxygen released by other substances.In people's life,with the continuous development of packaging industry.The use of vacuum packaging bags is becoming more and more common.When using vacuum packaging bags,attention should be paid to the chemical oxidation of vacuum packaging bags.