Farbtonvariation bei der chinesischen Stoffinspektion

Wie man Farbtonvariationen bei der chinesischen Stoffinspektion verbessert und kontrolliert?

Um Missverständnissen vorzubeugen, Ich kläre das richtige Konzept und die richtigen Begriffe zuerst wie folgt:

Wenn wir über Farbtonvariationen sprechen, wir sollten richtige ideen haben. Farbtonvariationen gibt es immer und ewig, es ist unmöglich zu verschwinden. Wir sprechen nur darüber, wie man es auf ein Limit kontrolliert und für die Kunden akzeptabel ist. Es gibt nicht zwei Farben genau gleich, genauso wie es keine gibt 2 Blätter genau gleich. Concerning color shade variation, es gibt 3 reasons to cause it, or we name 3 kinds of color shade variations:

1. As fabric materials comes in roll to roll, even in the same roll, color varies one end to the other end, one edge to the other edge. When cutting such roll, Color shade variation occurs on panels to panels, This is a fabric problem.
2. In the same batch, color shade variation occurs roll to roll, I call this roll shade variation.
3. From batch to batch, there is color shade variation, I call this batch shade variations.

The truth is, aus 1 zu 3, the color shade variation is from easy to hard to control. So you will understand why there is always color difference from order to order, is always more obvious than from piece to piece in the orders.

Then how to control it in Chinese fabric inspection?

But that is not the excuse to have color shade variation, what we do should be, how to control the color shade variation to a limit, or to the acceptable tolerance. Every party involves the business is trying to do this. therefore it becomes more complex, and cost more time to approve it.
We should bear in mind during Chinese fabric inspection. Color always changes after each of function finish such as, water resistance finish, PVC coating finish, even the pure fabric is dyeing perfectly. We do not know what direction it will change to, to change to yellowish, or to change to reddish? Only the dyeing and finish factory knows because they can try and do experiment.