Structured profiles for preliminary material selection. Compare limitations first, then open the detailed evidence and sources.
MATERIALS
9
VERIFIED RECORDS
24
PRODUCT PARAMETERS
AFTER VARIANT TESTING
MATERIAL PROPERTY ≠ FINISHED-CORD PROPERTY
Fibre data supports risk qualification and directional selection. Product parameters require testing of the exact yarn, construction, diameter, finish and batch.
QUICK COMPARISON
Preliminary selection matrix
The matrix indicates a selection direction; it is not a finished-product declaration.
Open a material to review applications, limitations, available variants and the evidence basis.
MAT / 01CottonNatural cellulose fibreCatalogue variantHighDoes not melt4 records
A natural cellulose fibre for processes where non-melting behaviour and a confirmed food-contact or useful-heat variant matter.
Cotton does not melt, but it is not fire resistant.
Decision profile
Heat behaviour
Oven or smoking use after variant confirmation
Flame
Does not melt; chars and may burn
Melting
no thermoplastic melting point
Degradation / charring
decomposition and charring depend on variety, treatment, atmosphere and heating rate; they are not a product service temperature
Moisture uptake
High
Wet strength
May improve; construction-dependent
Oven / smoking use
Yes, after variant confirmation
Candle wick
Yes, after burn testing
Electrical behaviour
Generally a poorly conducting textile fibre. Behaviour depends on moisture, construction and test conditions; the product is not a certified electrical insulator.
Application selection
Recommended directions
oven and smoking processes when the exact variant is confirmed
butcher's cords
kitchen processes
natural appearance
candle wicks after burn testing
Do not recommend automatically
direct flame as a fire-resistance requirement
wet applications requiring low moisture uptake
certified electrical insulation
Malkop portfolio status
Butcher's thread — 100% cotton 1-3 mm
Technical thread — Cotton 0.5-2 mm
MATERIAL EVIDENCE
Verified records and limitations
Publication titles are retained in their original language.
L
Non-thermoplastic degradation and charring
Cotton does not have a thermoplastic melting point. It decomposes, chars and can burn; treatment and fibre history materially change the thermal pathway.
Material-level hazard screening only. Do not convert decomposition data into a continuous-use temperature for a Malkop product.
Source
Literature dataSource verified
Thermal properties and decomposition products of modified cotton fibers by TGA, DSC, and Py-GC/MS
+27.6% for the cited cotton fibre sample. The paper's yarn results vary with yarn count and structure, so this value is not universal for yarn or cord.
Fibre-level directional evidence. Test the exact yarn, cord, knot and conditioning state.
Source
Literature dataSource verified
Tensile characteristics of yarns in wet condition
Department of Textile Technology, Indian Institute of Technology Delhi
Useful-heat suitability applies only to a variant confirmed for the process.
Food and candle uses require variant-specific documentation and testing.
MAT / 02LinenNatural cellulose fibreCatalogue variantHighDoes not melt2 records
A strong natural fibre with a stiffer handle. It does not melt, but may char and burn in a flame.
Linen does not melt, but it is not fire resistant.
Decision profile
Heat behaviour
Oven or smoking use after variant confirmation
Flame
Does not melt; chars and may burn
Melting
no thermoplastic melting point
Degradation / charring
cellulosic fibre; chars at elevated temperature
Moisture uptake
High
Wet strength
May improve; construction-dependent
Oven / smoking use
Yes, after variant confirmation
Candle wick
Possible after testing
Electrical behaviour
Generally a poorly conducting textile fibre. Behaviour depends on moisture, construction and test conditions; the product is not a certified electrical insulator.
Application selection
Recommended directions
natural technical cords
premium packaging
applications requiring a stiffer handle
process uses after variant confirmation
Do not recommend automatically
direct flame
certified fire resistance
certified electrical insulation
Malkop portfolio status
Linen thread — process variant 1-3 mm
MATERIAL EVIDENCE
Verified records and limitations
Publication titles are retained in their original language.
L
Humidity sensitivity and property variability
Flax properties vary with fibre source, processing, geometry and relative humidity. High humidity can reduce tensile performance in some conditions.
Supports lot control and wet/dry product testing. It does not define one universal linen-cord value.
PET hydrolytic degradation depends on temperature, humidity, crystallinity and molecular orientation; low moisture regain alone is not sufficient evidence for hot-wet service.
Use to trigger a steam or hot-wet product test, not to approve a variant.
Source
Literature dataSource verified
Hydrolytic and thermal degradation of PET fibers and PET granule
Melting temperature is not a service-temperature limit; time, load, moisture, crystallinity and construction all matter.
Do not recommend it for wicks, oven use or smoking.
MAT / 04Cotton / PET BlendFibre blendOn requestMediumMelts2 records
A profile governed by the exact cotton/PET ratio. Composition, construction and finished variant must be assessed together.
Do not calculate service temperature as an average of cotton and PET properties.
Decision profile
Heat behaviour
Temperature test required
Flame
Melts and may drip
Melting
depends on the exact PET fraction and construction; it does not define a product service temperature
Degradation / charring
the cellulosic phase may char while the PET phase may soften or melt
Moisture uptake
Medium
Wet strength
Depends on composition and construction
Oven / smoking use
No
Candle wick
No
Electrical behaviour
Electrical behaviour depends on the exact blend ratio, moisture and finished construction; no electrical-insulation certification is provided.
Application selection
Recommended directions
packaging
marking
auxiliary technical tying
wet environments after validation of the exact variant
Do not recommend automatically
oven and smoking use without separate variant approval
candle wicks
direct flame
declared electrical insulation
Malkop portfolio status
Spiral Twist — Cotton / PET Blend 0.5-3 mm
MATERIAL EVIDENCE
Verified records and limitations
Publication titles are retained in their original language.
L
Cotton / PET blend ratio
The exact cellulose/PET ratio must be identified for the product variant. Behaviour from one blend ratio must not be transferred to another ratio or construction.
Composition-control gate. Thermal, mechanical and food-contact conclusions still require finished-variant evidence.
Source
Literature dataSource verified
ISO 1833-11:2017 Textiles - Quantitative chemical analysis - Part 11: Certain cellulose fibres with certain other fibres
The cotton phase can char and burn while the PET phase can shrink, soften, melt and drip. The finished response depends on ratio, yarn and construction.
Hazard communication only; not a fire classification or product service-temperature approval.
The exact blend ratio and finished variant require validation.
MAT / 09Elastic coreElastomerCatalogue variantLowCore-dependent2 records
The functional Elasticord core for automatic tying. Chemistry and thermal behaviour require supplier data for the exact core.
The exact core chemistry and thermal behaviour require supplier data; no universal melting statement should be made.
Decision profile
Heat behaviour
No heat applications
Flame
Core degrades; supplier data required
Melting
Not established: exact core and cover chemistry required
Degradation / charring
Variant data required
Moisture uptake
Low
Wet strength
Depends on composition and construction
Oven / smoking use
No
Candle wick
No
Electrical behaviour
Do not treat it as electrical insulation. Behaviour depends on the cover yarn and finished construction.
Application selection
Recommended directions
Elasticord
automatic tying machines
bunching
product grouping
elastic fastening
Do not recommend automatically
oven use
smoking
high temperature
candles
direct flame
Malkop portfolio status
Elasticord — braided elastic core 1-3 mm
MATERIAL EVIDENCE
Verified records and limitations
Publication titles are retained in their original language.
S
Elasticord application and declared stretch
Malkop identifies Elasticord as an elastic rubber thread for automatic winding machines and declares stretch up to 90%; the definition and test method require confirmation for the ordered variant.
Commercial scope only. Confirm force, set, recovery, construction and method for the exact product.
ASTM D2731 covers elastomeric yarn tests but excludes covered, wrapped and core-spun yarns from its published scope. A method for the finished Elasticord construction must therefore be agreed and validated.
Test-planning requirement; not a finished-product performance result.
Source
Literature dataSource verified
ASTM D2731-21 Elastic properties of elastomeric yarns
-33.6% for the cited viscose fibre sample. The paper's yarn results vary with yarn count and structure; viscose can lose substantial strength when wet.
Fibre-level directional evidence. A product specification needs testing of the exact viscose yarn and construction.
Source
Literature dataSource verified
Tensile characteristics of yarns in wet condition
Department of Textile Technology, Indian Institute of Technology Delhi
Do not recommend it automatically for high-temperature service.
MAT / 06HempNatural cellulose fibreReference profileHighDoes not melt2 records
A natural bast fibre. Properties depend on origin, treatment and moisture; no standard Malkop variant is currently listed.
No standard Malkop variant is listed in the current catalogue.
Decision profile
Heat behaviour
Temperature test required
Flame
Does not melt; chars and may burn
Melting
no thermoplastic melting point
Degradation / charring
degradation depends on fibre composition, treatment and heating rate
Moisture uptake
High
Wet strength
May decrease
Oven / smoking use
No
Candle wick
No
Electrical behaviour
A hygroscopic fibre. Moisture and finishing affect electrical behaviour; the product is not a certified electrical insulator.
Application selection
Recommended directions
natural packaging
horticulture
decorative uses after variant qualification
Do not recommend automatically
oven or smoking use without tests
wicks
direct flame
wet processes requiring stable properties
Malkop portfolio status
No standard variant. The material can be assessed only after an enquiry, availability confirmation and product qualification.
MATERIAL EVIDENCE
Verified records and limitations
Publication titles are retained in their original language.
L
Treatment-dependent thermal degradation
Hemp-fibre thermal degradation depends on cellulose structure, non-cellulosic constituents and chemical treatment. No universal service temperature follows from fibre TGA data.
Material screening only. Test the exact yarn, finish and cord construction under the intended exposure.
Source
Literature dataSource verified
Composition, structure and thermal degradation of hemp cellulose after chemical treatments
Jute loses moisture first and then degrades in stages associated with hemicellulose, cellulose and lignin. Chemical treatment materially changes the observed pathway.
Material screening only. The study does not define a finished-cord service temperature.
Source
Literature dataSource verified
Effect of Chemical Treatment on Thermal Properties of Jute Fiber Used in Polymer Composites
Bangladesh University of Engineering and Technology and collaborators
Nylon is a material family. The cited hot-stage guide gives approximate melting points of 213 C for nylon 6 and 250 C for nylon 6,6, demonstrating why the exact grade must be identified.
Material identification only. These values are not finished-product service-temperature limits.
Thermophysical, ignition and combustion behaviour varies across nylon formulations. A generic nylon label does not support one flame or temperature claim.
Hazard screening only; not a fire classification or an approval for direct-flame use.
Source
Literature dataSource verified
Nylons: A Review of the Literature on Products of Combustion and Toxicity
Nylon 6 and nylon 6.6 must not be treated as one material with one melting temperature.
Material data
Describe a fibre or polymer family and help identify risk.
Source and scope
Each record identifies its source and application limit.
Product data
Exist only for an exact variant, test method and acceptance criterion.
Data publication principle
The fit score is a deterministic criteria-compliance indicator, not a probability or certification. Literature data describes the material and is used only for preliminary screening. Finished-product performance depends on yarn, construction, diameter, batch and process; critical uses require variant-specific documentation and validation.
