Ventilation of mass products
Electrostatic perforation has been used since 30 years for ventilation
of non filter, RYO or filter cigarettes to create a directed and
guided air bypass or Lindstroem principle. For this purpose, cigarette
paper for some non filter or RYO cigarettes and almost every kind of
filter cigarettes tipping papers are perforated electro statically
OFFLINE in zones from 2.0 - 6.0 mm width or in rows with ONLINE or
OFFLINE by use of slow, fast flow, sealed-off or SLAB CO2 gas or diode
laser in order to reduce the harmful substances such as nicotine and
condensate down to allowed values. Another effect is the possibility
to control the degree of ventilation of Cigarettes.
Online micro perforation - ****osity profile
Many years ago IPM had developed a multiple online electrostatic micro
perforation OESP-1 units at cigarette making machines which was patent
applied with EP0460369 and DE4018209.
http://www.freepatentsonline.com/EP0460369.html
The method and the device for electro-erosive perforation of cigarette
paper basically operates with at least two pairs of electrodes which
are ignited at the same time in such a manner that each perforation
section is treated twice in order to provide a corresponding intensity
of perforation, taking into consideration the duration of ignition and
the web speed. In particular, the invention operates with at least
four pairs of electrodes (I to IV), between which the web (10) of
cigarette paper to be perforated is moved through. The cigarette paper
is moved in the longitudinal direction of the cigarette to be produced
later, the width corresponding to the cir***ference of the cigarette
plus an overlap section for bonding. Perforating is carried out
transversely to the direction of movement, that is to say an
accurately defined zone section is produced around the cir***ference
of the cigarette. The pairs of electrodes are arranged at a distance
which corresponds to half the cigarette length (a, b, c) when four
pairs of electrodes are used. The first and the third pair of
electrodes are ignited simultaneously. A distance-dependent control
causes the second and fourth pair of electrodes also to be ignited
simultaneously when the previously perforated sections have traveled
the distance of half a cigarette length. Each section is perforated
four times, the speed at which the web (10) can be moved being
determined not by the spacing (half a cigarette length) of the pairs
of electrodes but by the spacing of the pairs of electrodes in each
case simultaneously ignited (one cigarette length). This provides for
uniform, intensive and very powerful perforation and the cigarette
paper treated can be continuously supplied to the cigarette machine
for further processing in the longitudinal direction of the cigarette.
That electrostatic micro perforation process enables cigarette or
tipping paper while cigarette making processes to reduce nicotine and
condensate levels for non-filter and filter cigarettes as well. The
OESP-1 devices opens fully new possibilities for cigarette or tipping
paper ventilation during cigarette manufacturing by entire perforation
cassettes integration into cigarette making machines as Max-S, Protos
80, Protos 90, Mark-9 etc.
Advantages during manufacturing
Compact all-over-dimensions, direct mechanical integration of
perforation units, easy functional interfacing and full EMI acceptance
in order of EN or NEC standards archiving high production efficiencies
with controllable ventilation grades on highly automated cigarette
making machines.
* Patented, powerful, dual high frequency switching electronics and
multiple perforation performances of the cir***ference of each
cigarette enables problem less perforation on high-speed cigarette
making machines up to 12.000 cpm
* ****osity ranges from 50 up up to 400 C.U.
* ****e densities from 25 up to 300 ****es/cm2
* hole size from 30 up to 80 micron
* cigarette ventilation grades up to 45 % are archive able.
* All necessary perforation, production parameters are stored and
controlled by microcomputer operation, i.e. geometrical and
synchronized positions of perforation lines, zones etc., ****e density,
perforation zones width and distributions, perforation profile and
****osity ranges for each cigarette brand
* ****osity profiles over the length of each non-filter cigarettes are
possible.
* Furthermore single, multiple, different or equal groups of single
perforation zones around the cir***ference of each cigarette for non-
filter, RYO even tipping paper for filter cigarettes are possible.
* All stored parameter sets are linked to the PLC system.
* Different micro perforation designs and ****osities of each cigarette
brand are flexible to define and controllable during all production
processes.
* Air ventilation levels are exactly defined and, due to online
feedback, can be kept constant by means of perforation system design
and ****osity distribution.
* For non filter cigarettes for example, perforation can be effected
over the entire length and cir***ference of the cigarette.
Liability and system investment
The ESP process OESP-1 has a high liability and is realizable with low
investments and low running costs when compared with online macro or
micro laser perforation processes. An online ****osity control system
OPSS-1 monitor continuously the air permeability, called optical
online ****ovision or ****osimeter, with a state-of-the-art technology
to obtain a close-loop/feed-back to the perforation unit to keep
ventilation grades constant.
Conclusion: Online micro perforation processes are possible to use for
other mass products and application fields with full system
integration in entire production lines as bag, sack, packaging
manufacturing etc.
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IPM - International Perforation Management - has developed many
different kind of laser or electrostatic perforation processes
especially for new product characteristics. Their devices, systems and
machines are in use world-wide.
Actual press release: Micro-perforation of running webs
http://www.flexo.de/de/aktuelles.htm
27.02.2008 - Jetzt erschienen: Flexo & Gravure Asia 1-2008 (in
Englisch)
http://www.flexo.de/download/fga/1-2008/Inhalt_FGA_1_2008.pdf
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MLL-1 - Micro Laser Line Perforation for holes pattern, perforation
design, e.g. waves, zigzag lines, line packages, cryptograms, company
logos, holograms, anti counterfeiting product indicators
patent pending for process, device and product property DE102004012081
LPM-1 - nano micro laser perforation at wide web material with high
power CO2 dual laser beam multiplexers and splitters, patent grant for
process and device DE102004001327
ESP electrostatic nano micro perforation machines for cigarette,
tipping, filter, packaging, plug-wrap and other paper products, patent
grant for process and device DE10328937 of IGBT power switching unit
Optical online OPSS-1 ****ovision control/scanning system for ESP or
LASER perforation machines,
patent pending for process and device DE10251610 - China patent grant
200310104764
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IPM - International Perforation Management
High-tech engineering - China - Germany - Thailand
http://www.microperforation.com
http://www.microperforation.com.cn
http://www.deguodaguan.com/ipm/
http://www.dk3qv.de
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http://www.microperforation.com/mll-1-laser-perforation.html
http://www.microperforation.com/lpm-1.html
http://www.microperforation.com/opss-1-optical-online-****osity.html
http://www.microperforation.com/igbt-esp-unit.html
http://www.microperforation.com/online-perforation-cigarette.html
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