How to use dirty quilt sheets

I would like to ask how to use the sheets with isolated hair. The method comprises the following steps:

In the first step, the quilt cover with an opening needs to be turned over first, and then placed on a flat bed, with the opening side facing itself, and the quilt core is laid flat on the quilt cover, and the corners of the quilt cover and the quilt core should be flush.

Step 2: First, pick up the sleeve core on the right hand side, fold it to the left, and the width should be half of the distance from the rightmost end of the quilt cover to the rightmost end of the quilt cover opening, and then roll the rolled right side by another layer along the same width.

Thirdly, along the leftmost end of the sleeve opening, fold the sleeve on the left side together with the core one layer to the right. At this time, the whole sleeve becomes a long strip, and its opening is just at the bottom.

Step 4: Place the long quilt horizontally, then start to tidy up the left side of the opening, and then fold the quilt on the right side to the left, the width of which is one third of the length of the quilt.

Step 5, turn the quilt exposed on the right side over in the opposite direction. At this time, the whole quilt becomes a square block with an opening on the outermost side.

The sixth step, finally, turn the sleeve and core together along the opening, pinch two corners and shake them flat.