Labdip is a small dye pattern developed in a laboratory, dyed on the actual fabric of the order to match the color required by the buyer.
Labdip matching A common buyer would provide one or more color samples for their order. Those color patterns are called swatches or color chips; Can be on fabric, clothes, pantone …. The task of the dyeing laboratory is to develop the color samples on the actual fabric of the order and send it to the customer for approval before dyeing in large quantities according to the dyeing factory’s order plan.
The color sample developed in that lab is called a lapdip. Lapdip to achieve the same sample of the customer must go through many times to adjust the dyeing formula until it is exactly the same as the customer pattern’s requirements for color (Hue), lightness (lightness), brightness (shade), and that development work is called labdip making. This process can be done entirely by the skills of a laboratory technician or can be combined with the help of a spectrometer, a color matching and analytical software. ). ..
Lapdip dye formula is a combination of common dye concentrations of 3 colors: blue, red, yellow. From these three primary colors, one can mix 256 different colors by changing the concentration of a 3-component. A high dye concentration will give us a dark color, a lower dye concentration will give us a lighter color. The combination of these basic dyes (component) together is called combination. In addition to adjusting the concentration of the basic dyes to achieve the desired final color, the experimental technique must also consider and select a combination of components with compatible specifications. called compatible, the color achieved is stable, less volatile and or when transferring the formula from the laboratory to a large-volume production machine to avoid errors, or color deviations.
Without the computer support mentioned above, after each labdip sample dyeing process, the technician will have to compare the color with the naked eye in the colorimetric cabinet, under the required light source. Each order, customers will request color matching under a specific light source. For example, D65, U3000, TL84 …. And each color can be the same under this light source but different under another light source, the phenomenon is called isomeric phenomenon or metamerism phenomenol. (Will write more detailed article about color-matching techniques and notes when comparing colors in color-matching cabinets)
With the support of the Datacolor system, the technician will only place the customer sample (standard) and labdip sample on the reading position of the spectrometer, the datacolor software will analyze and give the results compared to compare standard and labdip color parameters, and give PASS / FAIL results. Datacolor also allows calculating color formulas for dyeing (color matching) as well as correction formulas (correct formular) based on analyzing the differences between the two samples. However, many factories are not able to exploit the role of this system because they do not understand the system’s operation.
The sample labdip sent for approval by the customer should normally consist of 3-4 or more samples. The dyeing formula of each sample is saved at the laboratory. After the customer has accepted and selected a certain color in the samples to be submitted for confirmation, the formula will be transferred from the laboratory to the production area to run the first large batch of dyeing. If the outgoing labdip is rejected by the customer, the lab will have to adjust the finish and repeat the process. This takes a lot of time for production to keep up the delivery schedule, resulting in delayed deliveries and contract breaches. Therefore this is extremely important work, requiring technicians to have good skills and high responsibility.