What do you mean by double-sided printing?

Double-sided printing is to print both sides of the paper, brush glue on the back of the paper, then glue the paper together, and finally cut it according to the size of the finished product.

Classification of plastic packaging: wireless plastic packaging and wired plastic packaging.

1, wireless binding features: cheap, beautiful, delivery cycle is longer than riding orders.

Scope of application: the number of bound pages shall not be multiple of 4, and the binding thickness shall be based on 157g coated paper, exceeding 48p, and the thickness of finished products shall be greater than 4mm and less than 30mm.

Note: it is difficult to open the opposite page, and it is not easy to cross-page puzzles. If the paper is heavy, it is easy to lose pages in use.

2. Wired binding features: exquisite binding, high-grade, not suitable for off-page, easy to cross-page puzzle, but the production cycle is long.

Scope of application: the binding thickness shall be based on 157g coated paper, and products over 48p shall be packed with thread, and the thickness of finished products is not limited.

Binders can be used to bind books or documents.

Glue binding machine: to bind semi-finished book stickers, put a certain number of book stickers on the binding machine, quickly block both ends of the book stickers with plates, start the binding machine, compact the loose book stickers and bind them with ropes.

In order to make the compacted book backs firm, after compacting and binding, the bound book backs are brushed with polyethylene glue once, and after the brushed polyvinyl alcohol glue is dried, the binding rope is loosened, and then each book is sorted separately and transferred to a plastic bag.