How much dip is on the cord
Technical yarns and tyre cord are dipped in a mixture that includes an elastomer, so that they bond to the rubber that they reinforce. The amount of dip decides how well the bond forms, and it is controlled on the line. The classical check strips the dip from the cord and weighs what is left, which takes many hours.
Where it is used
- Tyre cord
- Technical yarns for belts, hoses and other rubber goods
- Cords of nylon, polyester and other fibres
Typical tasks are controlling the dip pick-up on the line, comparing dipping lines and batches, and checking cord from a supplier.
Compare the signal with a calibration
A length of cord is placed in a tube, and the signal of the dip is separated from that of the fibre by how quickly it fades. A calibration with a handful of cords whose dip was determined by stripping and weighing turns the signal into a percentage.
In-house methods
This is an application method that is calibrated for each type of cord and dip. There is no international standard for it. The calibration is made against the stripping and weighing method that your laboratory uses.
What it adds
- A result in about an hour instead of many hours
- No stripping chemicals and no solvent waste
- Non-destructive, so the cord can be tested again
- The same instrument can also measure finish and other coatings
Points that matter in practice
- A calibration is needed for each type of cord and dip
- Fill the tube in the same way every time, since the packing of the cord affects the reading
- Condition the samples consistently. Water on the fibres is hard to control and can affect the reading
- The method measures the amount of dip. It does not replace tests of adhesion to the rubber
From your cord to a routine method
Send or bring representative samples. MSY Consulting runs feasibility measurements, plans the calibration with you against your stripping and weighing results, and trains your team until the method is part of your routine.
Let's talk about your application
Send an email describing your instrument and your application, and you will get a reply.
contact@msyconsulting.euMSY CONSULTING SAS · Wissembourg, France · LinkedIn