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用于微波炉，对于消费者来说大有好处。根据Smithers Pira
公司的报告，在未来的五年里，自立袋将有着非常高的增长
速度。然而，不仅在工业化的国家里对专业包装方案的需求
越来越多的，在发展中国家包装的使用同样在增长，这些都
将为市场的成长做出贡献。
当前，代表高阻隔薄膜发展水平的是九层生产线
与日用品包装相比，高阻隔薄膜代表的是一个相对较小
的细分市场。无论如何，这一市场提供的不仅仅是上述的前
景和增长预测，同时还有着令人瞩目的利润空间，从而对于
投资者显示出了良好的机会。按照现在的状况估算，仅仅就
吹膜而言，每年就有大约20条新的阻隔生产线安装投产。最
近一段时间以来，高阻隔薄膜的制造商已经牢固确立了7层和
9层生产线的主流观念，9层生产线已经代表了当前技术发展
的最新水平。有代表性的是，生产应用于食品的高阻隔薄
膜，聚烯烃与EVOH层和/或尼龙层通过粘合层结合，可以得
到所需要的特性。 除了复杂的生产设备以外，特别重要的成
本因素是阻隔物料的用量，因此需要对这一层的层结构按照
其确定的用途实现最佳化，阻隔物料的使用量越少越好。
采用最常用的阻隔材料EVOH，阻隔层厚度为1μm，可
以可靠地连续生产阻隔薄膜。
增加两层附加层可以显著地提高灵活性
投资于11层技术，不仅对于那些已确定下来生产高阻隔
薄膜的公司非常合适，对于那些希望配备理想的设备、着眼
于将来的新发展和市场需求的后来者也非常合适。提高设备
的灵活性，不仅涉及到生产5层到11层阻隔薄膜，而且涉及到
I
n 2014 the worldwide usage of high barrier films reached a
market volume of 1.76 million tons with a market value of
15.9 Billion US$ as announced by Smithers Pira their market re-
port “The Future of High Barrier Packaging Films to 2019”. Un-
til 2019 consumption is expected to increase by 5% annually. In
this context high barrier films are defined as films that are flexi-
ble, have a thickness of under 250µm and, at a thickness of
25µm, have an oxygen transmission rate of less than
5cm
3
/m
2
/24h. The reason for the increasing usage of high bar-
rier films is an increase in demand for packaging materials with
improved product protection. This is particularly the case for
food and drink but also for pharmaceutical products.
Special Packaging Solutions are in strong demand
High barrier films offer excellent protection against oxygen, ni-
trogen and carbon dioxide and not only ensure that sensitive
food products such as fresh meat can be packaged but also en-
hance substantially their shelf life.
Particularly in industrialised countries, where changing life-
styles, an increasing number of single households and aging
communities are becoming more common, smaller packaging
units and case ready packs for fresh food, both of which require
high barrier film, are growing in importance. Also stand-up
pouches from high barrier film are becoming much more com-
mon as their suitability for retort and microwave applications
are of great benefit to the consumer. According to the Smithers
Pira report stand-up pouches will show the greatest growth
rates over the next five years. However not only the rising de-
mand for increasingly specialized packaging solutions in the in-
dustrialised countries but also the increasing use of packaging
in developing countries will contribute to the market growth.
Current state of the art with high barrier blown films is
9 layer
In comparison to commodity packaging high barrier films re-
present a relatively small market segment nevertheless this mar-
ket offers not only the described outlook and growth perspec-
tives but also very interesting profit margins and thus presents a
good opportunity for investors. According to current estimates
around 20 new barrier lines for blown film alone are installed
yearly, For the manufacture of high barrier films 7 and 9 layer
lines have become firmly established whereby in the recent past
9 layer lines have come to represent the state of the art techno-
logy. Typically, for the production of high barrier films for food
applications, polyolefin are combined with layers of EVOH and /
or polyamide by means of tie layers in order to achieve the re-
quired properties. Apart from the complex production machi-
nery required particularly the barrier materials represent a signi-
ficant cost factor and are therefore used in as thin as possible
layers optimized for a given application.
With the most common barrier material EVOH layers as thin as
1µm can be reliably achieved in continuous production.
Two additional layers enable significantly more flexibility
An investment in 11 layer technology is not only suited for
companies that are well-established regarding high-barrier
films, but also for newcomers who wish to be ideally equipped
for future new developments and market requirements. Flexibi-
拥有专利的X系列11层吹膜模头
Patented X-blowing head in the 11-layer design