Two
simultaneous conference sessions overlapped almost totally with the exhibition
and were somewhat remote from it, so it was difficult to do both justice. A printed version of each paper was available
at each conference room but only during the time of the presentation and, if Japanese,
with only a short abstract in English.
The organisers moderated the sessions and in the interests of
timekeeping did not allow questions from the audience. Unusually for this event, there were no
papers giving statistics covering the evolution of the Asian market since the
last Anex.
Conference Papers
The papers
attended are summarized below. The
Appendix provides speakers summaries, as provided by the Anex organizers, of
those missed.
Keynotes
The opening
session, Future Directions, had papers from the Japanese Ministry of
Trade and Industry – Textiles Division, academia (paper and textile research
institutes) and industry (Teijin and Kuraray) but without interpretation or
preprints.
The
interpreted keynote session was given by Unicharm’s founder and Chairman, Mr
Keiichiro Takahara, and was a personal view of the people-related
issues involved in leading and growing a
successful business through 45 years with three prolonged periods of negative
growth.
Since 1961
when the corporation started with 3 billion yen capital it has grown to 400
billion yen and now operates in 12 countries.
The product range evolved from the original “Sophy” brand of femcare
through Healthcare and Babycare (“Moony”) in the early 1980’s with Pet Care
being the current theme. Having been launched in an IPO 2 years ago the Pet
Care division was now leading this market in Japan
In trying
to explain the management style behind the successes, a multitude of mottos and
aphorisms emerged:
- If the effort needed to come up
with a good new product idea takes 1 unit of effort, 10 units will be
needed to make and test the prototype and 100 units to make it a
commercial success.
- You need a sense of history to
understand how products are created, evolve and die.
- Be an adolescent until death:
stay motivated and impressed, learn ‘til you die and avoid complaceny.
- People are 75% emotion and 25%
reason: They need to be loved to
give their best.
- Darwinism rules business: you need to change every day to
survive. Survivors change before
they are forced to.
- Origins of corporate failure?
Conceit, complacency, arrogance, jealousy/envy, dependency. These also apply to individuals, so self
control is essential.
- A good leader has a strong
will, courage, skill, tenaciousness, insight and an ability to exert
“soft” command and control.
- SAID is not HEARD; HEARD is not LISTENING; LISTENING is not
UNDERSTOOD; UNDERSTOOD is not AGREED; AGREED is not CONVINCED so you need
to work hard to convince people of the need to change.
Your
30’s are the decade for action, but in your 40’s utilise the experience gained,
in your 50’s lead others, in your 60’s support others, and in your seventies, plan the
succession!
Soft Spunbond Fabrics based on Advanced Polyolefins
Mr Gert
Classens, Senior Development Specialist, Polyolefins TS&D, The Dow Chemical
Company has done a comparison of PE/PP bico,
homopolymer PP and some experimental homopolymer PP resins on a Reicofil
3 line. The experimental samples could
be bonded at lower temperatures than PP, exhibited a very wide bonding window
(125 to 145C), and gave higher strengths, more softness and more drape than
hPP. Elongations both MD and CD
approached bico levels and were about double that of hPP, and abrasion resistance
as measured by weight loss was half that of the controls. How much would the experimental PP resins
cost? “When you accounted for the
conversion benefits which would arise from the non-bico production route, a spunbonder
should be able to replace bico with no increase in cost”. No technical information on the nature of the
new polymers could be divulged at this stage.
Steam
Jet Technology
Mr. Hajime
Tatsumi of Mitsubishi Rayon Engineering described the steam jet process which
has been in development for 7 years.
Contrary to earlier reports in the press, this is not an alternative to water-jet entanglement, more
an extension of hydroentanglement when faster drying, improved bulk and thermal
bonding are required. Nevertheless,
steam has been shown to create some entanglement due to softening of the fibers
at elevated temperature making them flexible and easier to entangle, and also
due to higher fluid velocities possible with the gaseous phase.
Steam
velocity at 0.8MPa is 453 m/s c.f. 113 m/s for water at 8 MPa. (The pilot rig can supply up to 1.5 MPa
pressure). The steam nozzles had 500 x 0.3mm
diameter holes/meter compared with 1000 x 0.1mm diameter holes/meter for
water. Total energy delivered was 3427
Kcal/hour/metre for steam c.f. 5974 Kcal/H/m for water.
However the
steam energy dissipates rapidly with distance from the nozzle and the web has
to be firmly held between two conveyors to prevent disruption. The thickness of the final product is
determined by the spacing of these conveyors, the steam “explosion” having the
effect of bulking the web and softening it while the high temperature bonded
any thermoplastics in the web. Any
patterning on the conveyors is accurately imprinted on the surfaces of the web.
The 0.5
metre wide pilot line unwinds a web or fabric through wet-out and 2 or 3
water-jet HE stages prior to steam treating on a separate conveyor, one steam
nozzle above the pair of conveyors and one below. All nozzles have opposing suction systems,
and there was mention of the conveyors being vibrated, presumably in the horizontal
direction. With steam temperatures of
150C, PP fibers are bonded in the bulked form and emerge dry. The steam nozzles are therefore seen as a
very cheap alternative to through-air drying after HE for synthetic fibers. Furthermore MRE claim the process only
softens the very outer surface of the PP fiber, allowing it to maintain
strength. It also steam-cleans all lubricant from the fiber surface.
Applications
under development are the desizing and pre-shrinking of PVA/Acrylic-sized
woollen fabrics for the Woolmark Company, and development of the Flexstar range
of insulation panels for Kuraflex.
The
Future of Flushables
Mr. Nataraj
Gosavi, Director of Business for Ahlstrom Asia Pacific re-presented the paper
given at Insight in October 2005 and summarised in that conference report. In later questioning, Mr Gosavi thought that
if Raleigh NC
Nonwoven sheets using new materials by the wet method
Mr. Katsumi
Motegi, a Senior Researcher at the Tomoegawa Paper Co Ltd has made sheets of
stainless steel fiber, PTFE fiber, PBO fiber and Ion Exchange Resin fiber by wet-laying blends
with suitable binder fibers and then
burning off or dissolving the binder. For
stainless steel, the water soluble polymer binder was burnt off and the
web sintered at 1000C. The resulting
very uniform mesh could be used for filtering hot gases or corrosive chemicals
or could be laminated to circuit boards to provide electromagnetic
shielding. PTFE webs used a similar
approach but after sintering at a temperature which did not destroy the PTFE,
some organic matter remained and had to be removed by chemical oxidation. Here too the applications were in printed
circuit boards - where PTFE’s dielectric properties were important - or in
filters. PBO fibers have better
heat resistance than Nomex or Kevlar and could be fibrillated and sheeted
directly. PPS fibers could be added as a
bonding agent. Ion exchange resin fibers
were sheeted with binder fibers in deionised water. Active carbon fiber could be added for
gaseous contaminant removal, and the paper could be laminated to the sintered
stainless steel to provide a high strength support.
Neumag Spunbond Technology
Dr. Henning
Rave of Neumag Zweigniederlassung der
Saurer GmbH & Co. KG reminded us of the constitution of the Neumag
Group: F.O.R provided carding, Autefa
crosslappers, Fehrer needlelooms, Neumag spunbond lines, M&J Airlay lines
and Kortec festooning. Additionally they
have a co-operation agreement with Fleissner on HE and drying. Their new spunbond technology had been proven
commercially on a 5 m wide SMS line capable of 800m/min, spinning PP, PE, PET,
PA6 or PLA (and bicomponents down to 5% sheath) in deniers ranging from 0.7 to
4. Uniquely, it had variable draw and
forming distances and could vary the draw pressure. Polymer distribution, spinneret, and slot
design was modular, allowing greater uniformity at wider widths than the
competing technology:
- 18 gsm PP coverstock with an MD
tenacity of 38 N/50mm and a CD of 18 N/50/mm (55% and 65% extensions
respectively) could be made from 2 dtex filaments at 240
kg/hour/metre.
- 12 gsm PP coverstock with an MD
tenacity of 29 N/50mm and a CD of 14 N/50/mm (50% and 55% extensions
respectively) could be made from 2 dtex filaments at 180
kg/hour/metre.
- 75gsm PET spunbond (with a
220C/15min shrinkage of less than 2%) could be produced at 300 kg/h/m from
1.3 dtex filaments to give an MD tensile of 240 N/50mm and a CD of 100
N/50mm, extensions being 30% and 40% respectively.
- A 6.5/2/6.5gsm SMS gave a hydrohead
of 168 mm with 1 dtex SB and 145mm with a 1.5 dtex SB. The hydrohead could be varied simply by
adjusting the air pressure in the draw slot.
Privately,
when commenting on the relative uniformity of the samples of R4 and Neumag
spunbonds, Dr Rave admitted that R4 gave better uniformity at comparable line
speeds, Neumag having to run slower to match it. However, Neumag’s modular design means higher
widths are easy to achieve and he envisages wide lines – up to 12 metres using
well established paper machine engineering methods - allowing the Neumag system
to outperform R4.
New "Reicofil 4" Pilot Line
Dr. Holger
Erth, Managing Director, Saxony Textile Research Institute (STFI - Germany Europe .
The single
beam R4 line has the following capabilities:
- Core/sheath, side-by-side and
segment/pie bicomponency
- 5 separate side streams for
adding color, wetting agents, activators, anti-microbials, UV stabilisers
etc.
- PP/PE spinning speeds range
from 1500 to 4000 m/min (1.0 – 3.5 denier)
Line speeds from 8 to 400 m/min, basis weights from 8 to 500 gsm
- PET/PA spinning speeds range
from 2500 m/min for 5 dtex to 5250 m/min for 2.5 dtex. Basis weight range from 18-700gsm
- Needle bonding works from 8 -
80 m/min (500gsm down to 50 gsm)
The
operation is sponsored and paid for by Reicofil who have free access whenever
they need it. STFI can use it for their
own research and hire it out to anyone prepared to pay the reasonable daily
rate for fully confidential development, with a guarantee of no feedback to the
machine supplier.
Advanced Electrospun Nanofibers
Professor
Chang Whan Joo of Chungnam National
University , Korea
- The particles did effect the
spinning pattern, probably by aggregating in the nozzle
- PVDF Nanofiber conductivity
increased by a factor of 7 when carbon black
was added. - The PET with carbon black
nanofiber web reduced the air permeability and increased the filtration
efficiency.
Although
not covered in the written paper, several slides dealt with the electrospinning
of chitosan, fibroin and chitosan/fibroin blends. Fibroin gave the finest filaments (300nm)
while Chitosan was ~700nm and the blend gave 2 micron filaments. These biopolymers were moisture-affected and
changed from porous webs to membranes as the humidity increased from 20% to
40%. For the future, Prof. Woo saw
electrospinning being hybridized with melt-blowing operations.
Nonwovens
for Cosmetics
Mr.
Yoshinori Kumasaka of Shiseido.,Co.Ltd
Cosmetic Products
Development Center
- Spunbonds are no good – too
thin and non-absorbent
- Air laids are better, but any
binder has a negative impact on the impregnants. Thermal bond air-lay is too stiff and
slippery. Shiseido do however use a
three-layer product - air-laid pulp with carded cotton/polyester surfaces
and hydroentangled.
- Wet-laid, especially those made
from ultrafine or splittable fibers and spunlaced can be used but are
generally too thin and expensive.
- Dry laid has the problem of the
finishes needed for good carding.
Synthetic fibers are not good but cellulosics are OK after
hydroentangling.
Overall,
spunlaced rayon or cotton nonwovens make the best substrates because the water
jets remove most of the finish from the fibers.
However they have their limitations and Shiseido feel new fabrics are
required to expand the market further.
Bulkier fabrics able to carry more liquid are required but current high
loft fabrics are too contaminated with finishes and insufficiently
absorbent.
The ideal
product would be totally pure cotton web with the bulk of a through-air bonded
high loft. Unfortunately, the cosmetic
market is relatively small, and Mr Kumasaka thought a supplier with a 1.5 m
wide line dedicated to making a variety of ultra-pure fabrics in smallish lots
would be their ideal partner to grow the market further.
Connecting this “need” with a new
development described earlier, the Mitsubishi Steam Jet process applied after
hydroentangling bleached cotton or rayon would appear to provide a way to make a high-loft totally clean web
from cellulosic fibers. Ed.
For the future, Mr Kumasaka saw ever more functionality being built into impregnated cosmetic wipes and masks.
For the future, Mr Kumasaka saw ever more functionality being built into impregnated cosmetic wipes and masks.
Points from the
Exhibition
Elmarco
(Czech Republic
-were
demonstrating their nanofiber process which uses a smooth roller rotating in
polymer solution as the electrode from which thousands of fibers are drawn
vertically upwards onto a conveyor. This can be made at any width and is
undoubtedly the most practical way of coating a nonwoven filter (for instance)
with a thin layer of 50-500 nm
filaments. The demonstration used an
aqueous PVA solution, but examples using nylon, polyester, urethane, chitosan
and gelatin fibers were shown. The 300mm
lab unit costs €48000 and they recommend purchasing this, doing the development
work in house, discovering the optimum process for your products and then
specifying a production unit which they could then build. (They have been swamped with requests for
samples and have decided that this is the best way forward.) They admitted to be working with cellulose
solutions for an undisclosed client. Deakin University
in Australia
Ginni
Filaments (India
-are
introducing a wide range of wet and dry wiping products based on imported
fabrics ahead of the start of their new HE line later this year. The positioning includes wet wipes with aloe,
orange, cucumber, lemon, mint, and anti acne formulations under the Clea™
brand, exfoliating facial cloths under the Magicia™ brand, Cuddles™ baby wipes,
and Cosset™ revitalising facial masks with aloe. They are keen to collaborate with Western
companies who have well known brands
which could be made under contract in India
GPF (Golden Phoenix Fiberwebs - China
-were
showing a wide range of elastic nonwovens, the Elaxus range being based on PP
(undisclosed type) and having up to 150% extension with 70% recovery in the
cross direction. Optiflex was a combination of Elaxus with a breathable elastic
film as required for diaper tabs and waistbands.
Hainan
Xinlong (China
-displayed
a lustrous and soft hydroentangled nonwoven made from bamboo fiber. The fiber had been extracted from the bamboo
plant and refined to a point where it could be processed into textiles and
nonwovens. No details of the fiber
extraction process could be obtained.
Henan Piaoan (China
-showed
100% cotton spunlace in the range 30-400 gsm, the latter being make-up removal
pads with a hydroentangled surface.
Kinsei
Seishi (Japan
-displayed
some impressive bulky air-laid fabrics made from 100% bico fibers. They were also showing a very soft 3-layer
laminate nonwoven with Oasis superabsorbent fiber between 2 layers of “Teijin”
polyester, said to be for food packaging.
Kuraray (Japan
-had an
impressive range of high bulk, embossed and thermoformed boards of varying
density and branded Flexstar®. These
were said to be made from an EVOH/PET sheath/core bico, steam-bonded using the
Mitsubishi Steam Jet process.
Kurashiki Textile Manufacturing Co (Japan
-have a
photo-catalytic nonwoven intended for deactivating bacteria and viruses in e.g.
anti-flu masks. The photocatalyst is a
hydroxyapatite where some of the calcium ions are replaced with titanium. The product is only antimicrobial in
sunlight. They were also promoting flame
retardant nonwoven ( halogen- and phosphorous-free) on the basis that new
legislation in California
Lenzing
Tencel (Austria
-is at full
capacity largely due to success in nonwovens which now account for 80% of sales
in the USA Mobile plant still has the original SL1 plant
in mothballs and there appear to be no longer any plans to invest in its
restart. Tencel is having a major
success in Japan
Lenzing Viscose (Austria
-say they
remain flat-out in all their factories and claim the textile market is starting
to boom again. Prices for viscose in
textiles are increasing and once again the effect is reducing the availability of
viscose for nonwoven customers. Once
again they agree that this is not good strategically, but essential
financially. They accept that their
Asian competitors, being keen to get into the nonwoven sector globally, will
benefit. Tang Sheng, a Chinese plant
using Lenzing technology was said to be one of the better plants in China China , Taiwan ,
Korea , Japan and Australia USA but most is used locally in Indonesia
Neumag
Saurer (Germany
-Air-Laid claim new installations in Italy (BBA Korma), Sweden
(Duni), China and the UK
Nisshinbo (Japan
-appears to
be the biggest user of Tencel in hydroentanglement in Japan, mainly in 100%
fabrics, complementing their full range of 100% bleached cotton hydroentangled
products, both plain and apertured. They
were also showing a 100% raw cotton fabric – for which good oil-absorbency and
an eco-friendly appearence was claimed.
One fabric had a cotton surface (15 gsm) on a Polyester (65gsm) back.
Peixin
Machinery (China
-were
offering baby diaper and sanpro production lines at what was said to a fraction
of the price of the market leaders.
400-450 pieces/min was claimed for the output of the diaper machine.
Piaoan
Group (China
-had a
nice-looking apertured hydroentangled PLA fabric on display. This was said to cost $7000/tonne at
30gsm: the same as bleached cotton.
Dynic (Japan
- had a PLA
nonwoven, said to be made from Japanese fiber, not Natureworks™.
Powertex Nonwovens (China
-had a
novel angle on the wet-wipe idea. They
had compressed dry wet-wipe size sheets into a tablet and packed them in
blister packs, like tablets. When you
need a wet-wipe, pop one out and wet it to bloom it before use. No they did not suggest chewing it first.
Reicofil (Germany
-had an
impressive range of R4 spunbonds down to 8gsm produced at 650 m/min, and were
promoting an SPS product at 60 gsm as a wet-wipe substrate. Here 35 gsm of airlaid pulp were sandwiched
between two 12.5 gsm R4 PP spunbonds.
While the texture was arguably too harsh for baby wipes (the pulp could
be felt through the coverstocks), the wet strength was impressive and the
product had an abrasion resistance suitable for the toughest applications (after
shave application?). The production
route here would involve an existing air-lay/HE producer adding unwind stands
either side of the air lay to unwind spunbond coverstock. This was a low capital way forward and “bound
to succeed”. Unwind stands would replace
cards, and cheap hydrophilic SB coverstock would replace the carded
rayon/polyester. How much pulp would be
lost in HE? This would depend on the
quality of the bottom SB layer.
Reicofil
now claim a total of 150 lines worldwide, 20 of these being R4 lines sold since
its launch at Index 2002. The key
benefits of R4 related to the new die
and slot design which allowed higher uniformity at higher speeds. This could not be achieved by retrofitting R3
lines. The meltblown part of the SMMS configuration
had been developed for better laydown and this was now yielding higher
hydroheads (80+cms) or lighter products.
Asked about R5, they have no plans yet.
R4 will continue to evolve in directions specified by the diaper
producers. They would not comment on
Neumag, other than to say that their closed system was inherently capable of
giving better uniformity than any open system. (A comparison of samples
available at the show confirmed a uniformity advantage for R4: Ed.) There were as yet no R4 operations
making polyester despite its ability to spin fully oriented fibers at speeds
above 5000 m/min. R3 was still the
workhorse for polyester spunbond. One of
the problems was that R4 lines were just too big relative to the narrower
requirements for PET spunbond in roofing etc.
STFI (see above) were working on polyester varieties.
Shanghai Mascot Nonwovens Group (China
-had a
high-loft dusting mitt, one side being covered with electretted PP tow fiber
and shredded high-loft nonwoven, and the other having an absorbent nonwoven for
removing finger-prints or smears from glossy surfaces.
Shinwa (Japan
-showed
both HE and spunbond PLA. They had had the products for some time but they were
not selling. Both fiber and nonwoven
cost 3 times as much as their polyester equivalents. Interest in ecology had to increase
dramatically if these were to be successful.
Solotex Corporation (Japan
– A JV of
Asahi Kasei and Teijin - is promoting
the poly trimethyl terepthalate (PTT) fiber in mono and bico filament yarns and
staple fiber. This polyester fiber has
“gentle elasticity” with the softness of nylon.
Sumitomo
Seika (Japan
-Soft Beads
from ethylene-methylmethacrylate copolymer (EMMA) had an average particle size
of 10 to 12 microns and were softer and smoother than the PU beads used to
improve the texture of cosmetic powders.
Similar beads made from polyethylene had been flattened, and this
further improved texture while increasing the reflectance or gloss of the product.
Teijin
Fibers (Japan
-continues
to produce a wide range of novel fibers for nonwovens. Tepyrus® polyester for wet laid is now
available in sizes down to 0.06 dtex and a 700nm nanofiber. Conventional deniers are available in flat
and triangular cross sections. Low melt
binder versions are available down to 0.2 dtex. Tetoron® (for dry laid) and
Aerostar® (for air-laid) are sheath-core, asymmetric sheath-core and
side-by-side bicomponents of polyester and copolyester as usual, but can also
use a PET elastomer as a sheath. Other
specialities include a hollow triangular fiber, flat fibers, flame retardants
without halogens or phosphorous, and a grafted polyester with a skin designed
to absorb volatile organics, especially formaldehyde. Elk® is an elastic high-loft wadding based on
polyester, and targets PU foam replacement in upholstery. Sepatone® is a heat-insulation/sound absorber
wadding based on polyester for use in automotive and intended for easy
recycling.
Technical Absorbents Ltd (UK
-report
their plant has been running intermittently during the start-up of the
expansion which takes their capacity to 3200 tonnes/year of superabsorbent
fiber. They continue to be sold-out and
are referring new enquiries from disposables manufacturers to the SAP powder
producers. This de-emphasis of
disposables is related to the better prices available in yarn products for
cable wrap and some new developments in geotextiles. However their main volume is still in food
pads, and the company is still up for sale with an announcement expected in a fortnight
(again! Ed)
J
W Suominen (Finland
-had a
small space on the J-Soft stand, and were promoting their hydroentangled
viscose/air-laid pulp laminate for wet-wipes use. The product is used in kiddies wipes, and
while fully biodegradable is only flushable by size. They are working on versions with shorter fibers
to try to develop a dispersible product.
The pulp laminate is made on their first HE line, commissioned in the
late 80’s to make pulp/polyester surgical drape and gown fabric.
Calvin Woodings 1/6/2006
Appendix: Presentations not attended
(Summaries below were provided by Anex 2006
organisers)
Propylene and Ethylene Based Elastomers for
Hygiene and Nonwoven Applications
The Dow Chemical Company,Mr. Andy Chang
The availability of propylene-ethylene
(P/E) and ethylene-octen e (E/O) elastomers has brought new options to hygiene
andmedical applications, particularly those that use elastomers in combination
with nonwovens in multilayer structures.
Tensile, elastic, and adhesive properties were compared for P/E and E/O elastomers for a range of comonomercontentsandmolecular weights.
Tensile, elastic, and adhesive properties were compared for P/E and E/O elastomers for a range of comonomercontentsandmolecular weights.
New genaration fiber Solotex made of PTT
Solotex Corporation, Mr. Eiji Sato
Solotex is made of trimethylene
terephthalate (PTT) .With its novel combination of features, Solotex setting
new standards for performance which are revolutionizing the field of synthetic
fibers. The creative possibilities enabled by Solotex extend to a wide range of
applications throughout the fields of nonwovens. Solotex is a pioneer of PTT fiber.
High-performance Reinforcement Fabric
"CRENETTE" and "KURAMAS"
KURABO INDUSTRIES LTD, Mr. Akira
Kasuya
The reinforcement fabric composite with no
crimps can possess higher mechanical
properties. “CRENETTE” allows the placement of warp, weft fiber bundles directly into the net fabric structure, and is built by resin. “KURAMAS” allows the placement of warp, weft, and off-axis fiber bundles directly into the fabric structure. Moreover, notonly the unidirectional fiber bundles, but also chopped strand mat can be combined. One of the most attractive features of these fabric is the ability to combine multiple layers of oriented yarn in a single structure, so that the cost can be reduced.
properties. “CRENETTE” allows the placement of warp, weft fiber bundles directly into the net fabric structure, and is built by resin. “KURAMAS” allows the placement of warp, weft, and off-axis fiber bundles directly into the fabric structure. Moreover, notonly the unidirectional fiber bundles, but also chopped strand mat can be combined. One of the most attractive features of these fabric is the ability to combine multiple layers of oriented yarn in a single structure, so that the cost can be reduced.
New Finishes for Future Requirements of
Nonwoven Fabrics
Schill + Seilacher Aktiengesellschaft, Dr.
Horst Ring
Nonwovens are successfully introduced to
various markets like hygiene, home textiles, automotive and similar. These
highly diversified fields of application require highly specialized properties
of nonwovens. Nonwovens consist of
fibers and filaments. Topical treatment of these materials is a qualified
method for designing required properties regarding end use. For topical
treatment spin finishes are used to provide hydrophilic, hydrophobic,
antistatic, oleophobic, alcohol repellent properties or to adjust friction or
to improve lamination. This paper gives an update to the most recent
developments in new finishes as performance additives for nonwovens and for new
nonwoven structures as well.
Non-halogen
fire retardant and the application for non-woven fabrics
NICCA CHEMICAL CO.,LTD. , Mr. Yuji Matsu
The halogen type fire retardant mainly has
been used. But recently, due to the possible generation of dioxin at
burning, non-halogen type one as the
replacement comes under notice. This
time I will show the type and character of it,
possibility of applications and current technology on nonwoven fabric by
it. And then I will show some actual
examples applied for automobile,
construction, air filter and industrial materials.
Photocatalyst technology and its application
for air purification
DAIKIN Industries,Ltd., Mr. Yoshio Okamoto
Upon focusing on the excellent adsorption
and decomposition that ‘photocatalytic titanium apatite’ has on the ‘influenza
virus’ and ‘bacteria toxins’, we work on the applied development of
‘photocatalytic titanium apatite’ in terms of a filter that could be utilized
for air purification. The results of
experiments were announced at the Institute
of Biophysics
Application Development of Nonwoven for
substitutional field Foam as a target
KURARAY KURAFLEX CO.,LTD, Mr. Yasurou
Araida
We point to substitute for a part of
application field of non-fiber system structure
material with advancing the porosity structure which nonwoven has. The target is to develop new material which has excellent morphologic stability, mechanical properties and various functional grants also, using special fiber material towards new application in fields such as automotive, electric appliances, construction.
material with advancing the porosity structure which nonwoven has. The target is to develop new material which has excellent morphologic stability, mechanical properties and various functional grants also, using special fiber material towards new application in fields such as automotive, electric appliances, construction.
The Movement of the Pet Industry in Japan
Unicharm PetCare Corporation, Mr. Hiromitsu
Kodama
No English text available.
Application of nonwovens for liquid filter
ROKI TECHNO CO.,LTD. / TAPYRUS CO.,LTD, Mr.
Yoshinori Takada /Mr. Shigeo Minami
First, in the meaning to understand about
the filter for liquid, we would explain about the classification of the filter
and the overview of the application. After that, we want to introduce about the
using of nonwovens to the filter and the performance that is required to
nonwovens. Extremely fine fibers give
excellent filtering ability,
so TAPYRUS MELTBLOWN NONWOVENS is being used in liquid filters etc..
so TAPYRUS MELTBLOWN NONWOVENS is being used in liquid filters etc..
FEM
Analysis on Slope Stability of a Geosynthetics Multi-Liner System in a
Controlled Sea-based Disposal Site
Toyobo Co., Ltd., Mr. Shigeki Tanaka
Nonlinear elasto-plastic FEM analysis was
conducted to simulate interaction behaviors of a geo-synthetics multi-linear
system installed in a slope that is made by overburden geo-materials to resist
uplift force behind the seawall of a controlled sea-based disposal site. The
interaction model was proposed based on the shear resisting characteristics
obtained from a series of direct shear tests between geo-synthetics and
geo-materials that are used in the liner system. Then, the analysis method was
verified by simulating the measured behaviors in direct shear tests on
five-layered linear models. For a fundamental case of the slope, having
sufficient safety factor obtained from a limit equilibrium method, In which two
sets of geo-synthetics multi-linear system are installed, distribution of
tensile forces induced in geo-synthetics wereobtained by incremental analysis
method that can simulate actual execution procedures. In addition, parameter
studies were conducted on the effects of shear resistance between
geo-synthetics and their tensile rigidity.
R&D on advanced secondary batteries-role
of non-woven cloth technologies
National Institute of Advanced Industrial
Science and Technology, Mr. Tetsuo Sakai
Advanced batteries such as nickel-metal
hydride battery and lithium ion battery are widely used in the society,
especially, in portable appliances and hybrid electric vehicles, serving
as lightweight, high-power and clean power sources. Further improving
both performances and safety R&D on advanced separators are in
progress based on non-woven cloth technologies.
Automotive technology in a sustainable society
HONDA R&D Co., Ltd., Mr. Osamu Aoki
No English text available
The sheet-type products made of curled carbon
fiber " DONACARBO®"
Osaka Gas Chemicals Co., Ltd, Mr. Kenji
Okuda
DONACARBO is a pitch-based carbon fiber and
is characterized by its curled shape. It comes in chopped fiber, milled fiber,
and sheet-type products such as needling-punch felt and paper-like products.
The sheet-type products provide a variety of properties, including heat and
chemical resistance, and very small bulk density and high restoring force
resulting from its curled shape. The general view of carbon fibers and the
features of the sheet-type products made of DONACARBO are presented.
CARPET RECYCLING
TOLI CORPORATION, Mr. Mamoru Kubota
Among all the carpet products, carpet tiles
generate the largest quantity of waste.
As carpet tiles are the complex of fibers like nylon and PVC resin, basically it is not easy to recycle. However, their recycling technology is now being researched and developed from the aspects of both chemical-recycling and material-recycling.
As carpet tiles are the complex of fibers like nylon and PVC resin, basically it is not easy to recycle. However, their recycling technology is now being researched and developed from the aspects of both chemical-recycling and material-recycling.
Fibers for Automobile
SCI-TEX(Consultant), Mr. Matsuo Tatsuki
Various fibers such as PET, Nylon, PP,
p-aramid, rayon, glass, carbon, PVA, PEN,
vegetable/vegetable originated, inorganic heat resistant, specific functional fibers are explained in terms of their features and applications to automobile.
New applications to automobile are also discussed in terms of nonwovens.
vegetable/vegetable originated, inorganic heat resistant, specific functional fibers are explained in terms of their features and applications to automobile.
New applications to automobile are also discussed in terms of nonwovens.
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