Check one · every lot
Laboratory testing
- Dimensional stability
- Fabric strength
- Colorfastness
- AATCC and ASTM test methods
Textile Rantex (Pvt.) Ltd.
Scale, speed and a proven archive.
Approximately 2.5 million meters a month, scaling to 3.6 million, backed by three decades of commercially proven constructions so brands move from development to bulk faster.
- 2.5M
- Meters a month, current capacity
- 3.6M
- Meters a month after planned expansion
- 8
- Production stages on a single site
- 4-point
- Inspection system on every finished roll
01 Manufacturing
Eight stages,
one integrated site.
Every stage of denim production runs on one site, each with dedicated machinery and its own quality team.
-
01Ball warping
Hundreds of yarn ends are gathered into a loose rope and wound onto a ball, ready for the dye range.
- Machines
- High-speed ball warpers
- Units
- 4
- Capacity
- 2.6M m / month
-
02Rope dyeing
Yarn ropes pass repeatedly through indigo baths and oxidize in the air, building depth of shade with each dip.
- Machines
- Indigo rope ranges, 24 ropes
- Units
- 2
- Capacity
- 2.6M m / month
-
03Re-beaming
The dyed ropes are opened out and the ends laid side by side onto a beam.
- Machines
- Long-chain beamers
- Units
- 14
- Capacity
- 2.6M m / month
-
04Sizing
A thin coat of starch protects the warp yarn from the strain of the loom.
- Machines
- Multi-cylinder sizers
- Units
- 3
- Capacity
- 2.7M m / month
-
05Weaving
Indigo warp and undyed weft are woven into twill on air-jet and rapier looms.
- Machines
- Air-jet and rapier looms
- Units
- 280
- Capacity
- 2.5M m / month
-
06Stenter
The cloth is stretched to its finished width, set with heat and stabilized against shrinkage.
- Machines
- Stenters and sanforizers
- Units
- 4
- Capacity
- 2.8M m / month
-
07Inspection
Every meter passes over a lit frame and is graded on the 4-point system.
- Machines
- Lit inspection frames
- Units
- 16
- Coverage
- Every roll
-
08
Quality assurance
The laboratory tests stability, strength and colorfastness before a lot is released.
- Machines
- Tensile, tear and wash testers
- Units
- 1 lab
- Coverage
- Every lot
Develop faster. Buy closer to demand.
React quicker. Carry less inventory risk.
The Rantex proposition
02 Fabric catalog
A denim archive built
over 30+ years.
Three decades of denim manufacturing have built a deep product archive. Our product development teams can build from proven platforms or develop new constructions around specific design, performance, sustainability or cost targets.
03 Quality
Consistency
and reliability.
Every department has its own quality team. Laboratory testing and 4-point inspection give brands the consistency their programs depend on.
Check two · every roll
4-point inspection
- Tube rolling
- Defect points assessment
- Splicing
- Defect classification
Request swatches for your next development.
04 Certificates
Independently certified.
01 · Product safetyOEKO-TEX® Standard 100
Every component of the fabric is tested for harmful substances.
02 · Organic fiberGOTS
Organic fiber, with environmental and social criteria through the supply chain.
03 · Organic contentOCS
Verifies organic fiber content from the farm to the finished fabric.
04 · Recycled contentGlobal Recycled Standard
Verifies recycled content and tracks it from source to finished fabric.
05 · Recycled contentRCS
Tracks recycled material through every stage of production.
06 · Content claimsCCS
A chain of custody that verifies the content claims made for each fabric.
07 · Cotton sourcingBetter Cotton
Physical and mass balance Better Cotton, under the Better Cotton chain of custody.
08 · Cotton sourcingCotton made in Africa
Registered with Cotton made in Africa for sustainably grown African cotton.
09 · Cotton sourcingU.S. Cotton Trust Protocol
A member of the Trust Protocol for measured, verified U.S. cotton.
10 · TraceabilityTextileGenesis
Fiber-to-retail traceability, recorded on the TextileGenesis platform.
11 · Chemical managementZDHC
Registered on the ZDHC Gateway, managing chemistry to cut hazardous discharge.
12 · Measured impactHigg Index
Verified Higg FEM and FSLM assessments of the mill's environmental and social performance.
13 · Quality systemISO 9001:2015
A certified quality management system across the mill.
- 14 · Environmental system
ISO 14001:2015
A certified environmental management system across the mill.
- 15 · Health and safety
ISO 45001:2018
A certified occupational health and safety management system.
Which stages of denim production happen at Rantex?
Eight, all at the mill in Faisalabad: ball warping, rope dyeing, re-beaming, sizing, weaving, stenter finishing, inspection and quality assurance.
What is rope dyeing?
Yarn is gathered into ropes and passed through indigo baths, then lifted into the air to oxidize, many times over. Each dip adds a layer of indigo on the outside of the yarn, which is what gives denim its depth and the way it fades.
How is finished fabric inspected?
Every roll is inspected on the 4-point system, which covers tube rolling, defect points assessment, splicing and defect classification.
What does the laboratory test?
Dimensional stability, fabric strength and colorfastness, using AATCC and ASTM test methods.
How much denim can the mill produce?
Rantex currently operates at a capacity of approximately 2.5 million meters of denim a month, with expansion planned to 3.6 million meters.
Can Rantex develop a fabric for a specific collection?
Yes. Local and international design consultants work with the product development team on single designs and on complete collections, and having every stage on one site keeps development quick.