Ventile® Specifications
| QUALITY | ||||
| FEATURES | L34 | L28 | L24 | L19 |
| Cloth Weight | 165-180 gsm | 285-300 gsm | 200-205 gsm | 235-240 gsm |
| Threads per cm (warp) | 95 | 71 | 81 | 66 |
| Threads per cm (weft) | 35 | 26 | 30 | 24 |
| Resistance to water hydrostatic head (min) | 750mm | 900mm | 750mm | 750mm |
| Typical vapour permability | 93-98% | |||
| More technical details are available on request | ||||
Ventile® Stitching Specification.
- Use double lapped felled seams.
Do not use plain or raised seams. - Use core-spun polyester thread – polyfill 120 / coats 180’s poly poly
- Use as fine a needle diameter as possible, i.e 70’s or 80’s a round point needle with a triangular (sehmetz SD1 is recommended)
- Inherent or Structural Jamming.
Follow the above recommendations for stitching. For top stitching / decorative stitching or raised seams, a stitch density of 8 – 9 stitches per 2.5cm is recommended. - Differential Feeding Pucker
The types of seams used in the manufacture of protective outerwear are more prone to this type of pucker, irrespective of the fabric constructive used.
Recommendations
This type of pucker can be greatly reduced by the use of a compensation foot to accommodate the differing thickness of the seam either side of the needle. To gain maximum benefit an independent type of compensation foot should be used. This allows even pressure to be applied. It is important that the separate parts of the slipper conform to the stitching margin of the raised seam. - Thread Tension Pucker
This type of pucker can occur on any tope of fabric, but if the machine is serviced and adjusted correctly and the following procedure is adopted should present few problems.
Recommendations
Tensions applied to the sewing threads must be kept to a maximum and the threads must have minimum shrinkage at the pressing stage. - The spool or bobbin winder should be set to the minimum tension that will wind an even spool.
- Reduce tension of the spoolcase so that it will just support the weight of a full spool and case when suspended by the free end of the thread. (Note extra allowance must be made if devices to avoid spool spin are being used.)
- The needle thread tension should then be adjusted to the minimum which will give a well balanced stitch. (Note – ensure the check or take up spring is functioning correctly.)
- Ensure that all parts of the machine which come into contact with the sewing threads are smooth, highly polished and free from burrs.
- Ensure that the rotary hook mechanism is synchronised correctly.
There are 3 potential causes of seam plucker.
Procedure
Taking Care of Your Ventile®
Ventile® is 100% Cotton, extremely durable and offers users many years of protection and comfort. Please look after the fabric for maximum durability.
- CHEMICALS – Damage to fibres can occur when in contact with acids, bleaches and detergents. If contact does occur, soak thoroughly in cold water.
- SAND AND GRIT – Sand and grit increases the abrasion on cotton fibres and can reduce the lift of the jacket. Please brush off all sand, grit and mud once dried.
- CLEANING – We recommend hand washing in Grangers Pure Liquid Soap for Ventile , using the following procedure : Gently brush or sponge off any dirt or grit. Close the zip fastener Turn the garment inside out Hand wash in Grangers Pure Liquid Soap for Ventile. Ensure all residue soap is removed from the garment, re-rinse if necessary. Re-shape the garment on a hanger and allow to dry naturally avoiding direct sunlight. Iron carefully on a warm setting – this reactivates the DWR treatment.
- REPROOFING – Your Ventile® garment may eventually require a reproof. Either use a product such as Grangers Extreme Waterproofing for Naturals, following their instructions or a specialist reproofing company familiar with Ventile® such as SPH Clothescare.
Ventile® +44 (0)1257 473311
Grangers +44 (0)1773 521521
www.grangers-international.co.uk
(Grangers products are available internationally)
SPH Clothescare +44 (0)1204 525566
e-mail:admin@sph.co.uk
Ventile® – ‘The Natural Choice’
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