There are various factors like pilling resistance, thread count, yarn strength, etc. that determine the quality of a fabric. Apart from these parameters, colour is the one and only factor that grabs the attention of a buyer. The colour used in a particular fabric has a great impact on its appearance and it also affects the buying behaviour of customers.

Therefore, manufacturers must be careful regarding the appearance of a fabric under different lighting conditions.  They must use latest devices and stringent quality testing procedures to avoid Metamerism. In this phenomenon, the appearance of a colour change under different lighting conditions. Hence, this assessment must be done with utmost perfection because the change in colour can result in the inferior quality of fabric and it can also cause rejection of the entire batch.

A Colour Matching Cabinet can be used to avoid any inconsistency in colour and to enhance its appearance. Testonix offers a reliable and highly efficient Colour Matching Cabinet that comprises of five light sources.  It is designed in such a manner that it offers a high level of accuracy along with easy operation. Moreover, it is available in both standard and customised forms, depending upon the customer’s requirement.

How to perform the Colour Consistency Test?

This test can be easily conducted in any testing facility. The Colour Cabinet is fitted with five different light sources. A sample is placed in the viewing area and then all five lights are emitted from it at regular intervals. The quality tester must use only one light at a time. The test must be visually inspected to avoid any interference of the external light.

Here is the list of five light sources that are available in a standard booth:-

  • Tungsten filament light
  • Artificial daylight
  • Cool fluorescence light
  • UV light
  • Point of Sale

Each light has a different effect on the sample colour.  This testing process is not used for setting a pass or fail criteria. It is performed to check the acceptance level of a fabric despite having few inconsistencies.

What is the Procedure to Determine the Quality of Fabric?

The Colour Consistency is measured in the first step.  Now, the next step is to find out the quality. A fabric loses its sheen after getting exposed to different conditions such as washing.  For e.g. - a sample has been washed twice. Now, the quality inspector will compare it with master under different lights available in the colour matching cabinet. This sample will be kept inside a cabinet under the continuous ultra violet light. After a few hours, a comparison will be made between the sample and the master to determine the after effects of UV light.

Colour bleeding phenomena is one of the biggest problems for textile industries.  Colour Bleeding happens when the fabric gets wet and it releases dye in the water or the fabric loses its original colour. This problem can also be highlighted when carefully observed in under different lighting conditions of a Colour Matching Cabinet.