| 摘要 |
<p>In the binding of 3 book cover to a body of leaves to produce a bound book, a band of hot melt adhesive is applied along an adhesive-receiving area on the spine of the book cover and/or on the spine of the body by projecting the adhesive as a thin flat transverse sheet from a flat fan orifice past which the cover or body is moving. The direction of relative movement is parallel to the spine, with the orifice extending transversely to the direction of movement. The adhesive, which is desirably applied in foam condition, provides an adhesive band that extends parallel to the direction of movement. Uniform adhesive coverage is provided and costs are reduced.</p> |
