Post on 20-May-2020
International Textile Manufacturers Federation (ITMF)
International Cotton CommitteeInternational Cotton Committee on Testing Methods (ICCTM)
Stickiness WG
Introduction
GOURLOT Jean-Paul Bremen March 2010
CIRAD UPR102
Bremen, March 2010
Laboratoire de Technologie et de Caractérisationdes fibres naturelles
Agenda of the ITMF meetingStickiness WG/TFStickiness WG/TF
Gourlot J.-P., CIRADIntroduction bibliography and latest informationIntroduction, bibliography and latest information
Gozé E., CIRADMeasurements based on counts : variability and methods of analysis
Harzallah O., ENSISA LPMTAdhesion Energy study of some Physiological and d es o e gy s udy o so e ys o og ca a dEntomological sugars
Plan of presentation
I t d tiIntroduction
Stickiness: origins
Stickiness: measurementStickiness: measurement
Introduction
The challenge for cotton today
To remaincompetitive with
To maintainacceptable profitability incompetitive with
synthetic fibersacceptable profitability in
production
Reduction of the production and processing costs
Introduction
The challenge for cotton today
Cotton fiber stickiness Defects / Disruptions ofCotton fiber stickiness Defects / Disruptions of the spinning processes
Classer
Trader
SpinnerResearcher
Producer
p
P i di tHigher spinning costLower yarn quality
Price discount
Additional operationsLower yarn quality
Plan of presentation
I t d tiIntroduction
Stickiness: origins
Stickiness: measurementStickiness: measurement
Origins of stickiness
APHIDS
Vegetal parts
Oil traces
Stickiness Waxes
WHITEFLIESPlant sugars
WHITEFLIES
Insect sugars
Origins of stickiness
Mature boll covered with honeydew
Origins of stickiness
Mature boll covered with honeydew
Origins of stickiness
Main sugars (in %) determined by HPLC in aphid, whitefly and aleurod honeydew, h t d G hi t
Mono- Polysaccharides
harvested on G. hirsutum
Sucrose Trehalulose MelezitoseAphis
Insect Mono-saccharides
Polysaccharides
Aphis gossypii 25 12 1 38
B i iBemisia tabaci 19 16 44 17
T i l dTrialeurodes abutilonea 44 33 3 0
Source Hendrix et al., 1992
Origins of stickiness
Th t i t t f ti ki i d t• The most important cause of stickiness is due to these entomological sugars.
• Honeydew has now become one of the maincontaminants present in cotton.p
• Sticky points remain in the cotton from the field up toh i i h h d ithe spinning processes where they cause productionand quality losses.
• The behavior of contaminated fibres duringprocessing is highly dependent upon the quantity andp g g y p p q ythe type of the main sugars present in fibres
Plan of presentation
I d iIntroduction
Stickiness: origins
Stickiness: measurementStickiness: measurement
Stickiness measurement
Simple PerkinsFehlingColor reactionKOTITI
Chemical methods
Complex
KOTITI
HPLCGCp GC
Physical techniques Infra-red
Mechanical Mini-card
ITMF Reference methodSCT
H2SD
FCT / FQT
ITMF Recommended method
Thermo-mechanical
FCT / FQT
Quickspin
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Stickiness measurementSome measuring devices for stickiness evaluation
Credit: M. Watson
Bibliography on stickinessg yCauses, measurements and
consequencesconsequences
GOURLOT J PGOURLOT J.-P.ICCTM-ITMF, Stickiness WG
Bremen, March 2010
CIRAD UPR102Laboratoire de Technologie et de Caractérisation
des fibres naturelles
Introduction of the bibliography
• In order to allow everyone to learn more about this contamination, we decided to prepare this extract of the available literature. We retained around 214 references out of thousands of available references, focusing on the cause of stickiness, on the possible means of evaluation and/or measurement and on major consequences during fibre processing.
• The initial bibliography covers a period going from g p y p g gthe 1960’s to 2008.
Observation
Numberof documents on stickiness
60
70
Number of documents on stickiness
40
50
60
20
30
40
0
10
20
0
Observation
Numberof documents on stickiness
60
70
Number of documents on stickiness
40
50
60
20
30
40
0
10
20
0
PDF filePDF file
CIRAD UPR102Laboratoire de Technologie et de Caractérisation
des fibres naturelles
Thanks for attention and suggestionsThanks for attention … and suggestions
CIRAD UPR102Laboratoire de Technologie et de Caractérisation
des fibres naturelles
International Textile Manufacturers Federation (ITMF)
International Cotton CommitteeInternational Cotton Committee on Testing Methods (ICCTM)
Stickiness WG
Latest information
GOURLOT Jean-Paul Bremen March 2010
CIRAD UPR102
Bremen, March 2010
Laboratoire de Technologie et de Caractérisationdes fibres naturelles
Latest information ITMF - ICCTM 2010ITMF ICCTM 2010
SYDEL SA M t lli FSYDEL SA, Montpellier, France manufactures SCT and H2SDLintronics: no news since 2008 and beforeKOTITI: prepared an ISO standards thatKOTITI: prepared an ISO standards that currently comes to the National Standardization Bodies (AFNOR, DIN, …)No (public) patent this yearNo (public) patent this year
Latest information ITMF - ICCTM 2010ITMF ICCTM 2010
• SYDEL : Axes de développement de la nouvelle version (H2SDv2)– Coût Machine– Technologies Actuelles– Réduction du consommable– Des bases solides pour les développements futurs
• Différentiation du type de collage Mouche Blanche / Puceron (US patents)
• Evaluation du taux de collage par spectrométrie.– Un partenariat reconduit avec le CIRAD pour vérifier
le niveau de lecture et sa précision
Observation
Numberof documents on stickiness
60
70
Number of documents on stickiness
40
50
60
20
30
40
0
10
20
0
Latest information ITMF - ICCTM 2010ITMF ICCTM 2010
Cotton Contamination Survey 2009
30
Stickiness
27
21
24
perc
ent
15
18
151989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009
Thanks to M. Christian Schindler, ITMF
Thank you
forfor
your attentiony
CIRAD UPR102Laboratoire de Technologie et de Caractérisation
des fibres naturelles