Benefits for the Fiber Industry 

Fast and Reliable Quality Control

Bruker offers fast and reliable solutions to measure Spin Finish directly on fibers. Spin Finish avoids  static electricity, guarantees sufficient lubrication and improves the cohesion of filaments. Thus, the  properly coated fiber runs more smoothly through the spinning machines, allowing faster and more  reliable operation. Even non-woven fabrics benefit from the Spin Finish for its improvement of  handling and functional properties. Bruker’s versatile TD-NMR method is capable of determining the  amount of Spin Finish. The remarkable accuracy, reproducibility and repeatability of Bruker’s minispec  further allows for studying of the distribution for the Spin Finish content on the fibers, especially for  very low Spin Finish concentrations (<0.1%).

The Range of Applications 

Spin Finish determination, also known as  Oil Pickup (OPU), Finish on Fiber (FOF),  or Finish on Yarn (FOY), can be determined for practically all combinations of  fibers and spin finishes. Based on longterm 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 nonweighing 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, especially compared to wet chemical approaches and NIR. 

Measurement of the sample as is 

The analysis requires simple, minimal sample preparation. 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.

Fiber use is very broad. For example, they are utilized in the textile industry for clothes and carpets.  They are also found in a broad variety of everyday products like toothbrushes, car tires, car seats,  air bags etc.

Features and Benefits 

Spin Finish Analyzer 

▪ Excellent magnet and temperature stability for  high reproducibility and repeatability 

▪ One unit, all integrated (excluding PC) 

▪ Closed cabinet, filter-free, no forced air exchange 

▪ Economic, power consumption during  steady state < 40 W 

▪ Silent, acoustic noise < 39 dB(A) 

The minispec Plus Software 

▪ Daily instrument validation using Bruker daily  check sample  

▪ Multi languages m+ software (9 languages)  with fully traceable data 

Validation Samples 

▪ Set of Bruker calibration transfer and validation  samples provided (weighing method)

Customized Solutions for Quality Control 

Barcode reader 

Samples can be tracked by using the barcode reader. 

Database 

The results can be automatically stored into databases  and visualized in clearly arranged tables.