The Range of Applications

Spin Finish determination, also known as Oil Pickup (OPU), Finish on Fiber (FOF), or Finish on Yarn (FOY), can be deter- mined for practically all combinations of fibers and spin finishes. Based on long- term experience, it is suited for

▪ technical textile and high performance fibers

▪ multi-filament, monofilament, staple fibers, non-woven fabrics as well as texturized samples

▪ polyester, polyamide, polypropylene, polyethylene, polyacrylonitrile fibers and yarns

The Spin Finish Applications

Bruker offers both weighing and non- weighing methods:

Non-Weighing Spin Finish Method

(medium to high Spin Finish levels)

▪ High  sample throughput

▪ Fastest  sample preparation

Weighing Spin Finish Method

(very low to high Spin Finish levels)

▪ Highest accuracy and repeatability

▪ Special application: Check that Fibers are Spin Finish Free (very low Spin Finish levels for applications where Spin Finish is unwanted)

▪ Monitoring of fiber washing

Beyond Spin Finish Application

DIP (Polymer Coating) on Fibers

For specific high performance applications,

polymer coatings, so-called DIP, are added to the fibers,

e.g. for high performance car tires.

▪ Polymer quantification

▪ Polymer coating thickness evaluation

The Key Advantages

Bruker’s minispec offers many advantages over competing analytical methods like wet chemical analyses,  gravimetry and near infrared (NIR).

Fast and accurate

The analysis delivers reliable results in  less  than 60 seconds. It is 2-3 times more accurate than any

classical wet chemical method. The system offers the highest repeatability and ultimate reproducibility, espe- cially compared to wet chemical approaches and NIR.

Measurement of the sample as is

The analysis requires simple, minimal sample prepara- tion. Moreover, it is color and surface independent and all of the sample volume is measured.

Fast and convenient calibration

The system runs with a minimum of calibration efforts. Only 3 to 5 samples are required to set up a calibration in form of a linear regression.

Safe and efficient

The TD-NMR analysis provides workplace safety as well as reduced labor costs. It avoids the use of solvents which is beneficial for the operator’s health and the environment.