Question

determines how closely the colours should be matched for sampling. *


a) Tolerance

b) Pixels

c) None of these

​

Answer 1

Answer:

The Correct answer is option A

Explanation:

• The ultimate purpose of creating a colour process is to achieve the colour you desire for the completed product through an effective and simplified approach. If a product's colour does not meet the standard, customer happiness suffers, and the quantity of rework, waste, and expenses rises. Setting colour tolerances objectively inside the colour process is an efficient technique to ensure colour uniformity and accuracy while meeting requirements.
• A colour tolerance is a restriction on how large the colour variation between a sample and the standard may be for the sample to be regarded acceptable.
• Using a colorimeter or spectrophotometer, take measurements of each sample chosen from the visual assessments. Depending on the colour space utilised, the difference in colour between each sample and the standard should be recorded as L*, a*, b*, C*, H*, and E*.
• The sample colour with the values that deviate the most from the standard colour can serve as the maximum tolerance limit. Color should be aesthetically and mathematically acceptable if tolerance values correlate to the human eye. This assures uniformity from batch to batch of material. It is advised to utilise an elliptical tolerance system, such as CIE2000, for this since these systems are based on the human eye's colour discrimination threshold.
• To solve the shortcomings of existing tolerance systems and enhance accuracy, elliptical tolerance systems were developed. Step #3's maximum limit tolerance values create an ellipse around the standard colour. Colors that fall inside the tolerance ellipse are accepted, but colours that fall outside of this ellipsoid are rejected. Color measuring instruments with high precision and colour analysis software, such as SpectraMagic NX, make it easy to determine tolerance levels and find discrepancies between a sample colour and the standard.
• Tolerance values should be specified internally or between supplier and customer and utilised in quality control to decide whether the sample passes or fails inspection using colour measuring instruments. The actions outlined below should be taken to develop a colour tolerance.