This was the
largest nonwovens show ever both in terms of exhibitor numbers and total
content. In addition to the main
exhibits, EDANA had arranged a Special Features and Events programme comprising
a Global Nonwovens Summit, the INDEX Awards, a Management Innovation Workshop,
Nonwovens Tutorials, and Exhibitor Product Presentations. Your correspondent had to focus, and chose to
focus on the Exhibition stands and conversations with the exhibitors, the
emphasis being on seeking out new and interesting developments, especially
those from the East. The notes are
roughly classified according to whether they relate mainly to Raw Materials - Natural
or Synthetic, Nonwovens - Spunlaid or Carded, Machinery - Spunlaid or Other and
Miscellaneous.
Natural Raw Materials
Birla Cellulose (India), the largest viscose rayon
producer, had no fibre available and nothing they wanted to sell. They thought what Courtaulds used to call the
Cellulosics Gap had finally arrived.
Demand for cellulosics was now much higher than even cotton could reasonably
be expected to fill without serious encroachment on food-growing acreage, so
Dissolving Pulp capacity and rayon production were now expanding as rapidly as
possible. They hoped to start up another
150,000 tonnes viscose plant
in India within 2 years and were planning a viscose plant in Egypt. Their DP mills could supply 65% of their current 800,000 tonne cellulose needs. Prices were at record levels. Market DP now cost 2.6 Euro/kg and compared with 2.05 Euro/kg for rayon staple. Bleached cotton was at US$4/kg. World DP demand had risen from 3 million tonnes to nearly 5 million tonnes since the turn of the century, and the rayon processes now accounted for about 4 million tonnes of the DP.
Domsjö Fabriker (Sweden) make totally chlorine free
dissolving pulp, bioethanol and lignin from wood. Like the rayon producers, they feel the
Cellulose Gap has arrived and that the future for wood chemistry is good. They plan to expand from the current 210,000
tpa pulp capacity to 255,000 tpa by end 2012.
(Since Index, they have been
acquired by Birla Cellulose as part of their plan to expand viscose fibre
capacity to 1 million tonnes/year.)in India within 2 years and were planning a viscose plant in Egypt. Their DP mills could supply 65% of their current 800,000 tonne cellulose needs. Prices were at record levels. Market DP now cost 2.6 Euro/kg and compared with 2.05 Euro/kg for rayon staple. Bleached cotton was at US$4/kg. World DP demand had risen from 3 million tonnes to nearly 5 million tonnes since the turn of the century, and the rayon processes now accounted for about 4 million tonnes of the DP.
Tangshan Sanyou Group Xingda
Chemical Fibre Co. Ltd. (China)
have expanded their capacity for viscose rayon from 150,000 tonnes to 260,000
tonnes in the last 2 years and now produce staple for nonwovens in deniers from
0.6 to 5.0 and lengths from 20 to 120mm.
They were still showing the Bamboo fibre "a kind of cellulose fibre purified from natural bamboo according to a
special chemical process" which has deodorising and antibacterial
functionality due to the "Penny-Kun
contained in natural bamboo".
With a specified sulphur content of 80-120 ppm, the fibre is clearly
made using a viscose process fed with bamboo woodpulp and the mystery of how
the bamboo chemistry survives remains unexplained. Photos of their new viscose line indicate a
large and modern vertical spinning system.
Shandong Helon Textile Science
and Technology Co Ltd
(China) makes 270,000 tpa viscose rayon staple and 8000 tpy filament using
mainly cotton pulp from their own 250,000 tpa pulp mill. They also make 7500 tpa nonwovens and were
displaying HE fabrics on the stand. They
have a couple of flame retardant staple specialities and new for this show was
"Jutecell - a hollow cross section
fibre made from jute". They
import the raw jute from Bangladesh and make the jute pulp in their own pulp
mill prior to feeding it into the viscose process. But for a hint of "C-Shape" in the
crenellated cross section, the fibre looks and tests like a lowish-strength
regular viscose staple. Nevertheless
they claim "special manufacturing technology" to maintain the natural
antibacterial and antifungal activity of the original jute fibre and presented
test data showing a log 4.6 kill rate of staph. aureus. The Jutecell fabric, like the Bamboo fabric
they introduced 3 years ago, looked like perfectly ordinary bright unbleached
regular rayon HE at about 35 gsm.
Lenzing (Austria) were similarly embarrassed
by the unmeetable demand for their viscose and Tencel fibres and had announced
numerous expansion projects including extra Tencel capacity in Heiligenkreuz,
Lenzing and Mobile Alabama. Like Birla,
their capacity is expected to rise to a million tonnes by 2015, but here Tencel
is included in the mix. Notable for its
absence from the stand was “Tencel Web”, the spunlaid Tencel which had been
announced at the last Index. The small
Tencel expansion at Mobile Alabama (a restart of ~7500 tpa, or half the
capacity of the long-mothballed SL1
plant) will replace the original in-line
tow washing with a new conveyor-belt system.
This will allow the Heiligenkreuz fibre presentation (no mechanical
crimp) to be supplied to US customers and obviate the need for imports. It could also, in principle, make it usable to
wash webs of staple fibre or tow. No-one
was available on the stand to discuss Tencel Web so it remains unclear whether
or not the original "melt-blown" concept for Tencel Web has survived. No plans for the second half of the old SL1
line have yet been announced but another major expansion on the site is not
ruled out. Click Here for Tencel Development History
Kelheim Fibres (Germany) were showing their range
of Italian viscose Fibres:
·
Bramante,
a 100% cellulose segmented hollow fibre with considerably higher absorbency
than regular viscose and intended for use in medical and hygiene products and
speciality papers.
·
Bellini,
high width-thickness ratio, smooth section, highly self-bonding, flat rayon for
papers and wet-laid nonwovens.
·
Verdi,
an alloy of cellulose with a gel former for applications where high absorbency
or a gel effect is important.
·
Dante,
a combination of Bramante cross section with a gel former for the ultimate in
fibre absorbency.
·
Poseidon,
a viscose fibre with ion-exchange properties.
Solam (Sweden)
were introducing biopolymers (starches) as competitors for latex binders in
nonwovens on the basis that they supply them as alternatives to synthetic sizes
in papermaking. They now cost
substantially less than the synthetics.
The big disadvantage was the absence of wet-strength but Solam felt
there would be opportunities in wall coverings, roofing systems and coating
bases. They will also supply the starch
cooking equipment needed to make the solutions for either spray or pad
application.
Synthetic Raw Materials
Idemitsu Chemical Europe PLC (Germany) introduced “L-MODU”, a new
stereo-regular PP based polymer using single-site metallocene catalysis. This soft, low modulus polymer makes elastic
fabrics when used in 100% form or can be blended with standard PP to soften the
final product. It was described as low
isotacticity, low melting point (70-80C, but not sticky at room
temperature). A bico fibre with L-MODU
core and L-MODU/PP sheath had been spunlaid to give a fabric with 85% MD
elastic recovery. A 15 gsm spunbond with
20% L-MODU was significantly softer than the control fabric. They had all been produced down to 10 gsm on
a 2m wide Reicofil 4 line at 400 m/min.
A 40,000 tpa polymer plant will be fully operational in Q1 2012
Dow Chemicals (Switzerland) introduced their “Soft
Touch” PP resin for the production of mono-component spunbond nonwoven
fabrics. This new resin offers softness, enhanced drape and low noise as required for adult incontinence products. It has a low bonding temperature and a broad
bonding window for processing efficiency and flexibility and has been
engineered to offer tensile properties comparable to polypropylene, as well as
abrasion resistance for low linting and fuzzing in the final nonwoven article. Nonwoven webs formed with this resin can be
recycled back into mainstream production. The samples, like the Idemitsu L-MODU, felt
like polyethylene. However Dow were
still showing the Aspun range of PE resins for bico applications.
Technical Absorbents
(UK), manufactures Oasis Superabsorbent Fibre and is now part of Bluestar
Fibres Ltd, a wholly owned subsidiary of ChemChina. In addition to the established cable-wrap,
food packaging and hygiene/medical markets for this dry-spun sodium
polyacrylate-based fibre, the company has now developed performance apparel
applications using a hydroentangled blend of Oasis and hydrophobic fibres as a
water reservoir layer in an evaporatively-cooled composite textile. Blends with phase change materials give a
fabric where the Oasis absorbs perspiration and enhances the cooling
performance of the PCM. A wound dressing
on display was impregnated with Manuka honey.
EMS Griltech
(Switzerland) introduced a range of bacteriostatic polyester fibres
incorporating silver and zinc ions for shoe liners, sportswear, mattresses and
medical.
Spunlaid Nonwovens
Elmarco (Czech Republic) were showing their
2nd Generation Nanospider® lines which now use single wire
electrodes coated with dope rather than roller-electrodes rotating in
dope. Each spinning module uses 2 wires
about 25 cm apart, these being fed with dope from a reciprocating roller system
which licks it onto the wire. The
voltage (up to 140 kV) forms and transfers the nanofibres from the wires to a
paper substrate running about 20cms above the wires and under the upper
electrode. Fibre diameters can be from
80 to 700nm, with a variability of +/- 30%.
The 4 wires together produce 0.02 to 4 gsm webs depending on conveyor
speed, this being variable between 0.2 and 12 metres/min. The NS 4S1000U machine being demonstrated was
using 2 modules to make a web 1m wide at a conveyor speed so slow it looked
stationary at first glance. Furthermore
the layer of nanofibre being collected was invisible, but definitely present
according to the exhibitor. The NS
8S1600U line uses 4 modules to make 1.6m wide webs. Up to 4 machines can be arranged in line to
coat a single carrier if higher productivity is required. Polymers used have to be soluble in a
non-aqueous solvent and include polyamides, polyacrylonitriles, polyether
sulphones and polyvinylidene fluorides.
Asked what productivities could be achieved from the new system, an example
of a 0.05gsm surface coat on a filter was used.
For this a 1.6m line would make 20 m2/min of coat with 4
wires, and double that with 8 wires. The
latter works out to 2g/min of nanofibres.
Elmarco is
also working on melt-electrospinning but have yet to make an acceptable
product. At the very low melt-flow rates
needed for spinning, the resulting polymers are very short-chain and the fibres
too weak. 150nm fibres from molten PP
had nevertheless been collected.
Khimvolokno (Belarus), part of the Svetlogorsk
Production Association, has started up a 3.2m wide Reicofil 4 line with a
Fleissner hydroentanglement bonding option to make either “SpunBel” thermal
bonded diaper components or “AquaSpun” spunlaced for both wipes and diaper
components. Using the thermal bond
option, 10-150 gsm PP spunbonds can be made, currently at a rate of 5000 tpa,
but with extra beams, 10,000 tpa is possible.
The spunlace option gives similar throughputs in a 30-250 gsm range and
the lighter weights will be used as topsheet in a new Russian diaper. The heavier weights are being developed for
construction and geotextiles fabrics where the absence of fibre damage caused
by needling allows stronger products to be produced. Their original Reicofil 1 line is still in
operation and produces 3,500 tpa of thermal-bond only nonwovens. The company
was founded in 1961 to make viscose tyre yarn which is still in production on
the same site. Yuri Tishkevich, who
provided the information here, feels they have the potential to produce viscose
nonwovens in an integrated pulp-to-fibre-to-nonwoven operation.
Regent Nonwoven Materials (Russia) make SS and SMS
"Neotex" nonwovens down to 10 gsm on a 3.2m Reicofil 3 line installed in 2008 and
now producing 9,000 tpa. In October
2012, they will start up a new 15,000 tpa Reicofil 4 line with a width of 4.2
metres to make SSS fabric at weights down to 8 gsm. Hygiene will be the main target, but
construction, packaging and agriculture fabrics are also under development.
Avgol (Israel) were now going Global with
a new CEO, a new team, a consolidation program and 110,000 tonnes/year of SMS
and Spunbond capacity around the world.
They had recently announced new lines for China, the USA and Russia
which would be on stream in 18 months and add a further 40,000 tonnes
capacity. While 12 gsm is still their
main SMS fabric, they had good-looking 10gsm rolls on display and claim an 8gsm
version will be available soon. 12 gsm
spunbond-only was on display, but 14 gsm was still the main product in this
category.
Kuraray (Japan) have meltblown a polyarylate
liquid crystal polymer to make “Vecrus” nonwovens. Its zero moisture uptake and low dielectric
constant make it useful in IT equipment circuit boards, insulation and Li-ion
battery separators. Its high heat
resistance makes it useful for industrial polishing machines, heavy duty motors
and aerospace honeycombs. Their
meltblown thermoplastic polyurethanes are now complemented by a styrenic
elastomer polymer system which is finding applications in elastics, sticking
plasters and permeable waterproof membranes for wound care.
Toray Polytech (Nantong) Co. Ltd. (China) claims state of the art
equipment supplying 17,000 tpa of top quality SMMS and SS nonwovens from a 4.2m
wide SXMMS line. They were displaying an
excellent 8gsm "Livsen" PP SMMS but admitted that this was a
development product, 12 gsm being their current standard. Also on display were a PE/PLA bicomponent
fabric, a very soft Bico PE/Block Copolymer fabric and and elastane spunbond. A 2nd 4.2m line (SSMMS: 20,000 tpa) is now
starting up and a 3rd line (also 20,000 tpa) is scheduled to be operational in
June 2012.
Asahi Kasei
(Japan) continue to promote Bemliese™, the 1970’s spunbond cupro-rayon, for its
ultralow lint generation, biodegradability, high absorbency and purity for use
in ultraclean environments and for agricultural, horticultural and tea-bag
use. Precise™ is a polyester spunbond
nonwoven with a nanofibre layer providing high barrier performance for
membranes, medical adhesive tapes and filter bags.
Zheiang Jiahong Nonwovens Co Ltd (China) was set up in 2006 with an
investment of 35 million yuan (~5.4 million US$) to make 5000 tonnes/year of
spunbond in the 10-150gsm weight range.
They now have 1.6, 2.4 and 3.3
metres wide lines and use FDA grade PP to make "non-toxic" fabrics
for medical/sanitary uses, geotextiles, and agriculture the latter having
"weak resistance" to sunlight for rapid decomposition.
RKW SE (Germany) had sample packs of wet-wipes made from
100% PP, spunlaid, hydroentangled and hydrophilically treated. They claim the same single-beam line can be used to make
panty-liner absorbent on roll, ready-backed with film or waterproof coating.
SAAF
(Saudi Arabia) is adding a third Reicofil line to start up in 2013. This one will have 6 beams and will produce
medical and hygiene nonwovens. It has
added Medalon Lite (35-50 gsm) to its range of medical barrier fabrics.
Saudi German Nonwovens (Saudi Arabia), the first and still
the largest spunbond maker in the Middle East has 3 Reicofil lines (up to 4.2m
wide) and was showing the usual range of products down to 10gsm for core wrap.
Huzhuo Jihao Nonwovens Fabric Co (China) make 3000 tpa of spunbond PP
in a 10gsm to 150 gsm weight range using 2 "Chinese Modified" lines,
1.8 and 2.4 metres wide. They specialise
in a wide range of colours and added functionalities such as FR, anti-static
and hydrophilicity. Their fabrics are
high strength and "Non-poisonous".
Foliarex (Poland) who make Perfecta polypropylene fibres for nonwovens,
has just invested in a new PP spunbond line to make products for construction,
agriculture, furniture, automotive, apparel and hygiene industries. It can produce 10-200 gsm fabrics up to 1.6m
wide.
Ecotextil SRO (Czech Republic) make meltblown PP on
3 x 1m wide lines, buy-in spunbond PP and laminate on-line using ultrasonics to
produce rolls and square mats for spill absorbents. They make a hydrophilic version using a copolymer
melt additive.
General Nonwovens and Composites (Turkey) now produce 12,000 tpa of
PP and PET spunbond on their 3.6m multibeam line in weights ranging from 10 to
200 gsm. Hydrophobic, hydrophilic,
antistatic, antimicrobial and flame retardant finishes are available.
First Quality Nonwovens (USA) refused to deal with the
“what’s new and interesting since last Index” question. This was a new and interesting policy
development since last Index.
Carded and/or Spunlaced Nonwovens
Blue Web SAS (France) use mainly natural fibres
to make hydroentangled wipes, handkerchiefs, fem-care and incontinence
products, make-up removal pads and diapers.
Their 100% cotton/organic cotton range converted on Trutszchler/
Fleissner equipment is facing tough competition due to the high price of cotton
so they also make cotton/viscose blends (which include bamboo) and plan to add
PLA to the range. The plant, which
houses a 2.5m wide line capable of producing 5-6000 tpa was built on a
greenfield site in Nogent. They made
their first deliveries in November 2010 and claim interest from both Kimberly
Clark and P&G. They have Global
Organic Textile Standard certification (GOTS) for their organic cotton
products. For the future they expect
cotton prices to peak in 2012 and then decline, but not to old levels. This will be due to the extra cotton acreage
planned for the 2012 season.
Sandler AG (Germany) has just started up its
third HE line based on Andritz technology.
They now make 80,000 tpa nonwovens mainly using HE, and mainly for
wipes, but thermal bonded carded webs are still important and are finding new
applications in technical products and hygiene.
Competition with spunbond in the mainstream hygiene market is next to
impossible because prices are low due to major overcapacity in spunbond and SMS,
but they do make attractive 12 gsm card/thermal fabrics with superior softness
due to the staple fibre content. New for
this Index is the “Bio by Sandler” wipe substrate based on viscose from
Lenzing. These have a unique
hydro-embossed design. They also process
some Tencel.
Nan Lui Enterprise (Taiwan) claim their Shanghai
operation now has the world’s largest production line for spunlaced polyester
pulp nonwovens. The 4.5 m wide line
using Andritz spunlace technology started in 2009 and makes nonwovens for
operating room drapes and gowns and low-lint industrial wipes. The OR fabrics, based on carded polyester
sandwiching western red cedar tissue, are repellency treated, and as close to
identical to Dupont Sontara as possible.
They export to the EU and USA and claim to be the first company in the
world to meet the EU norms.
Baby wipes
are produced on the 2 older spun-lace lines in the Taiwan factory and this used
to be their core business: Kimberly Clark were a key customer for their
flow-packs.
Zhejiang Spread Nonwoven New
Material (China) were
founded in 2006 and claim to lead in the design and manufacturing of
biodegradable spunlace nonwovens in China.
Their range includes Tencel, bamboo, chitosan, meta-aramid, para-aramid,
PLA, and porous elastic spunlace nonwovens.
Beijing Dayuan Nonwovens (China) now make 28,000 tonnes/year
of nonwovens from 2 HE lines and 6 card/thermal (through-air) lines. Their main markets are diapers and femcare
and they claim to sell mainly to Kimberly Clark and Johnson and Johnson’s Asian
plants. 80% of the output is exported
from China.
Ihsan (Pakistan) have started up their 2
metre wide spun-lace line to make 30-70gsm 100% bleached cotton fabrics, plain
or perforated for medical and hygiene uses.
These "Belcot" fabrics are entirely for export and are
currently shipping at the rate of 30 tonnes/month.
Winner Medical Group (China) specialises in medical
disposables based on “PurCotton” hydroentangled US cotton fabrics. They have one HE line, but were showing a very
wide range of plain and perforated 100% HE cotton fabrics ranging from 30 to
120 gsm. One of the fabrics had been
converted into a hydrogel dressing presumably by carboxymethylation of the
cotton.
DS Fibres (Belgium) are spinning PLA fibres and making a
range of natural fibre and PLA blend nonwovens mainly for geotextile,
automotive and filtration applications.
Other Nonwovens
JX Nippon Anci (France - part of JX Nippon Group)
showed the unusual “Milife” silky-touch nonwoven alongside the usual range of
Claf reinforcing scrims . Milife is made
by laying a weft of MD-oriented polyester spunlaid filaments at right angles
across a similar warp. The resulting
gauze-like nonwoven looks woven but for its very light weight. The two polyester spunbond layers are 5gsm
giving a remarkably tough 10gsm final product.
Heavier versions, up to 40 gsm total are also available and they have
almost "square" MD/CD properties.
2.2 metres is the widest currently available and the sheets are
unusually thin compared with random laid spunbonds (0.07mm at 10gsm). Applications include window blinds, wallpaper
and adhesive tapes.
Landolt SAS (France) were converting what looked
like normal polyester and polypropylene crimped tows into tough lightweight
nonwovens using a tow-spreader. These
"SkillCoat" nonwovens were
available in weights from 40 to 300 gsm and widths up to 4.8 metres. Applications targeted were mainly carriers
for roofing membranes, geotextiles, waterproof tapes and impregnated
composites. One of the samples on view
looked like a 2-layer product, with one layer being almost straight MD oriented
tow and the other being somewhat overfed to add CD strength. Other samples were needlefelts with the
spread tow giving MD reinforcement only.
Machinery for Spunlaid
Reicofil (Germany) let their fabrics do the
talking. On display were rolls of:
·
8gsm
SSMMMS PP produced at 900 m/min
·
8gsm
SS from 1.2 denier PP also at 900 m/min
·
8.4
gsm SSS from 0.7 denier PP at 660 m/min
·
55gsm
hydroentangled PP/Pulp/PP (10/35/10) made from 1.1 denier PP at 250 m/min.
·
20gsm
M (Meltblown only) produced at 12 m/min for HEPA filters
·
150gsm
hydroentangled S (Spunbond only) produced from 1.9 dtex PP at 25 m/min.
8 gsm
products are currently only used as core-wrap: Reicofil are still working on
improving the strengths for use in other diaper components. The hydroentangled products are now being
evaluated as wet-wipes and as Acquisition Distribution Layers. They are collaborating with both Fleissner
and Andritz on the hydroentangled developments and have so far sold one line of
each: an R4 with both thermal and Fleissner bonding to Khimvolokno and an R4
with Andritz (Rieter) to RKW. Both of
these companies are developing hydroentangled spunbonds for wet wipes. Reicofil see no need to introduce an R5
system yet, there being plenty of further scope with the latest R4 and no real
competition. However they do have a new
RE system, where the E stands for Emergent.
These basic and narrow lines are being sold as starter-kits into emerging
markets.
Oerlikon Neumag (Germany) were still promoting the
Neumag Spunbond system but admitted that the spunbond market growth is
practically all going to Reicofil. Albis/Ascania
had taken the big risk of installing the largest ever spunbond line (a 7m wide
Neumag) and had shown the product at the last Index. However they had run out of money shortly
afterwards and the line was now idle. Oerlikon
remained in touch with the administrator and pledged technical support to
whoever acquires the assets. The way
forward for Neumag Spunbond technology might well be in polyester and PLA. PLA works well on the Neumag system and
developments are proceeding to new products in this area. They are now developing hydroentangled
Spunbond/Pulp/Spunbond absorbent nonwovens.
Wenzhou Changlong Textile Technology Co Ltd (China)
supply turnkey SMS production lines for PP, PET and PLA, and claim more than
300 installations around the world. They
also have capacity for producing 30,000 tonnes of 10-250 gsm spunbond/SMS
nonwovens with the usual range of finishes.
They have 5 machines, 2 built in 2000 making PP nonwovens (10,000 tonnes
in total), 2 making PET nonwovens (8000 tonnes) and a new bico system capable
of PP/PE, PE/PET and PE/PLA spunbond production which is starting up this
month. 50% of their production is
exported, mainly to the EU. There have
been many enquiries for machinery at this show, but no orders as yet.
Huada (China)
is offering pilot spunbond lines in widths of 10cm to 50cm.
Other Machinery
NSC Nonwoven (France) discussed two new
developments, their new “Tambour Transfer” carding system and an advance in
cross-lapping using an Air Control System.
They had decided not to give a presentation at the Suppliers Forum, but
were revealing it to interested parties.
Geoff
Kershaw explained that the carding advance arises when a large TT cylinder is
inserted between the main carding cylinder and the double-doffers to allow the
webs to be removed over the tops of the doffers rather than underneath. This also prevents any recirculation of the
staple and allows speeds of 240 m/min when making 35 gsm webs with MD/CD ratios
below 2.7:1. In the absence of the TT
roll, this could only be achieved at 170m/min.
On the new system 50/50 PET/Viscose at 1.7dtex/38mm can be carded at
350m/min. The prototype is now in the
showroom and available for customer trials.
It took 2 years to develop with the help of EC funds.
The
improvement in cross-lapper speed arises from abandoning the use of suction and
fitting a grooved roll to allow air entrapped in the web to escape
naturally. Cross lapping speeds
increased from 70 to 100 m/min when suction was first used, and now, with ACS
in use, 150m/min is possible.
These
developments are allowing card/crosslay to compete with spunbond in the
heavyweight Geotextiles and construction sectors, and staple products are now
preferred to spunbond in the 90-300 gsm range.
On the
stand was an attractive roll of 100% raw cotton spunlace at 60 gsm but no-one
was available to discuss this product.
Biax Fiberfilm Corporation (USA) described the “melt-blown”
Tencel nonwovens as technically excellent with fantastic properties, but likely
to be too expensive to be commercially successful. The meltblown heads worked at 1g/hole/min
dope flow, but due to the low viscosity solution of cellulose used, this only
amounted to 0.1 g/hole/min of fabric.
They’d be happy to build a pilot line given €100,000 but feared there
would be no market for the output.
Nanoval (Germany)
continue to promote their split-fibre spinning process which produces 100+
microfibers from each spinneret hole, as a route to spunlaid cellulose
nonwovens from NMMO solutions. The
currently proposed system is as follows:
·
Pulp,
NMMO and water are fed to a List reactor where the cellulose dissolves as the
water is evaporated.
·
The
8% cellulose dope is fed by spinning pumps to the spinneret and through the
Laval nozzle which splits the forming filaments and sprays them with water to
coagulate them.
·
The
web is collected on a suction drum for water washing, pressed and dried on a
drum dryer.
·
Fibre
sizes from 15 down to 1 micron can be achieved.
·
Spinneret
hole sizes can be from 0.25 to 1mm allowing cheaper woodpulp to be used.
They
currently offer several sizes of pilot line (up to 75cm) for process
development purposes.
Three Wood Machine Company (China), founded in 2007, makes baby diaper, adult diaper,
sanitary napkin and training pant production lines. The SM-500YK-SF diaper machine runs at 200
m/min at efficiencies above 80% and with wastage below 3% and includes hammer
mill, drum former, SAP auto-feed, ADL, cuff, waistband, frontal tape and side
tape applicators, along with a cloth-like backsheet lamination unit. 500 pieces/min is claimed. The training pant line is designed for 400
pieces/min.
Dachang Wipes Machinery Co (China - part of Quanzhou Dachang
Paper Machinery Co Ltd) was established 12 years ago to make wet-wipes
production machinery for China and now targets becoming a global brand,
boasting sales of machinery to 60 countries.
Their fully automatic high speed DCW-4800 machine takes up to 40
spunlace rolls (~50gsm) and converts them into 150-250mm wide and 180-220 mm
long wipes for pop-up or non pop-up packs at the rate of 10,000 sheets per
minute.
Imanpack SRL (Italy) provide packaging machines
for wet-wipes and also act as agents for the Dimatra (Mexico) wet-wipe machine
maker. Their vertical flow pack
(replacing canisters) looked interesting and they also had a machine to make a
novel two-compartment pack for tissues and wet-wipes which could be integrated
with the wet-wipe conversion line. One
idea was to use one compartment for daytime wipes and the other for nighttimes.
Asked who is using the new system, they
claimed interest from K-C and P&G.
Miscellaneous
Btampon (Switzerland), founded in 2009,
displayed its Be-Easy tampons in what looked like highly colourful retortable
pouches. Clearly innovative packaging
development is distinguishing this newcomer from the leading brands, and the
range includes pretty boxes for handbag use, and a multipack with different
sizes to cope with 4 different flow rates.
The tampons, which are produced in France appear to be the usual fluted
digital type but claim to be the first with a secure barrier system, which
according to the illustrations was a region at the string end which did not
expand. Also mentioned were Chafleen's intra vaginal delivery
device, a tampon modified to carry immunotherapy or pharmaceuticals; Be Easy Nano, a separate applicator for
the Be Easy digital tampon, and Voileen,
an intravaginal nonwoven for end of period discharges to be introduced next
year.
Tigil Closure Systems SRL (Italy) is now marketing
"Tigil" from Magis SpA's range for baby and adult diapers. The usual
range of PP film based tapes (including Y-bond) and landing zones (both knitted
filament and spunlaced loops) is now complemented by a biodegradable range
using "Mater-bi"-like films.
They supply mainly to lower volume private label but claim to be in
touch with K-C and Ontex.
Nikoo Group (Iran) comprises 8 companies and
about 800 employees and describes itself as a young persons company. They supply fibres for nonwovens including
PP, PET, bico and cotton, but also make
card/thermalbond nonwovens ("Narmineh") and spunlace nonwovens based
on cotton and blends with synthetics ("Nikoolace"), all mainly for
export. Nice embossed bleached cotton
spunlaced nonwovens were shown.
Freudenberg
(Germany) were showing Vilmed® 100% PLA acquisition layers for diapers and
femcare. They also showed bioresorbable
nonwovens based on centrifugally spun gelatin microfibres.
EDANA (Belgium) presented their vision for nonwovens in 2020:
·
Accelerating
globalisation
·
Economic
power shifts to the East
·
Current
low-middle income regions become the largest consumer markets
·
Demand
for all nonwovens increases.
·
Boom
in agricultural and construction products.
·
The
elderly will outnumber babies with
consequences for hygiene nonwovens.
·
Sustainability
concerns will prevail and lead to opportunities for nonwovens e.g. Air and
water filters.
·
Consumers
will be increasingly sensitive to the chemical composition of nonwovens.
·
Innovation
is the key to addressing the globalisation and sustainability trends.
·
Nonwovens
will help to improve health and control healthcare costs.
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