Flust extremely

I bought 6 pillowcases in blue color.
This already applied.
Unfortunately, they fluff very strong. After removing the cushion covers I had to brush off time consuming pillows. The inner surface flust extreme. The pillow had a blue furry Flusenüberzug. As I applied the cushion covers as early as cover for pillows, it was a little amusing that these cases lead to contamination.
The zippers are partially sewn upside down, in other words, the slide handle runs partly inside. This makes the closure somewhat difficult. Is certainly a production error, as not all 6 Kissenhüllen were sewn in this way.