Entry Control (Raw Materials)
In the entry control phase our yarn's colour, shrinkage, and oil content is carefully checked. Our weaving mill won’t allow a colour difference of any more than 1 ΔE. The normal shrinkage rate of standard polyester or TCS is from 8-12 %, but we won’t accept any yarn with a shrinkage rate of more than 5 %. This is to ensure that the permeability of our textiles remains static and standardized throughout the production process, from the weaving loom all the way to the finished product and beyond. That means you’ll never have to worry about shrinkage from washing cycle to washing cycle.
The normal amount of spinning oil is between 3.5-7% added in the spinning process. But once again we impose a far stricter oil content limit of just 1%. This ensures that any remaining oil will be evaporated off in the heat setting of the finished product without altering our textile’s permeability.
After heat setting, our textiles are sent off for inspection, where a set of human eyes susses out any defects or irregularities. The product’s permeability is given one last check and, if everything looks good, is finally approved. We measure the textile’s permeability with a portable handheld testing device, which provides precise measurements from the entire width of the textile (between 50-70 measure points all across the width). Whenever a textile’s permeability falls beyond our approved range, the entire roll is destroyed and begun anew.
We control the permeability of our finished product through a number of strict production parameters. The most important aspect is the amount of weft insertions per cm². Our weaving
mill is able to control weft insertions by 0.1/ cm² and our heat-setting machine is used to remove
any variations once the weaving is done. This ensures that our textiles will retain their precise permeability throughout their entire lifecycle, wash after wash, year after year.
Each roll contains a barcode with 11 identifying marks.
These specify the textile’s:
- Air permeability
- Length in metres and m²
- Loom number
- Lot number of yarn
- Date of production
This gives us full traceability on every roll we produce - from cradle to grave.
Entry control (Duct Production)
Before forming the textile roll into the final duct we once again check that its permeability, colour and strength are up to par.