Customer's requirement for color difference

In many commercial trade activities, customers have also put forward more stringent standards, such as chromatic aberration, left-right color difference, and color difference before and after 4-5. If the customer does not have a clever explanation, the inspection to the printing and dyeing factory is also carried out according to this most stringent standard: in fact, the requirement for the color difference is not as high as possible, and the production of the printing and dyeing plant after mentioning the color difference standard Difficulties will increase, and the number of proofs will be more at the time of production of each color. The lower production efficiency is not in line with the current low-carbon and environmental protection concept advocated. The concept of Total Quality Management believes that product quality can be as long as it can meet the customer's final use requirements.

According to many years of experience, the customer's elasticity of the original color difference requirements is relatively large. In general, fashion color orders are less demanding on the original color, and some clothing brand dealers require the same color for the year-round production. Relatively high. However, it should be emphasized that most customers who do the processing of apparel fabrics must meet the hard-to-scale requirements of 4-5 on the left, right, and right sides. This requirement is also entirely reasonable. If it cannot be achieved that the cutting loss of the product when it is being dressed will increase, there will be an additional loss of quality.

In the finished product inspection, the cold analysis and evaluation of the original color difference and the left-right color difference are most often involved. Under normal circumstances, the factory QC and the customer's QC will perform the inspection in the standard light source box and judge it against the AATCC gray sample card. Since there is a certain difference in the judgment of the color difference of each person's eyes, there may be a half-order error in judging the same color difference sample. Due to the maturity and gradual popularity of computer color measurement technology, computer color measurement has become an important color measurement method. The color measurement data can be used as an important reference for trade exchanges. In general, when the computer detection is within 1.0, the visual color difference of the visual inspection can reach 4 or more. However, computer-based colorimetry still has some limitations compared with the human eye. So far it has not been able to completely replace human eyes as the only basis. The color difference level of finished products is still finalized by the buyer's quality director (QA). Comment on the antelope and decide.