Binding folder for binding leaves and method to produce such binding folder
AssigneeUnibind Limited
InventorGuido Frans M. Peleman
Life of this patent
Estimating the term…
Abstract
Binding folder for binding a bundle of leaves, whereby this binding folder comprises a cover with a spine and two endpapers. In the spine a U-shaped profile from heat-conductive material is applied. The U-shaped profile comprises a base and upright arms. In the U-shaped profile a binding adhesive in the form of a hotmelt adhesive is applied. The U-shaped profile in the spine is applied by an assembly adhesive between the upright arms of the U-shaped profile and the spine of the cover. The assembly adhesive extends beyond the free edges of the upright arms and over these free edges.
Claims20
A binding folder for binding a bundle of leaves, the binding folder comprises a continuous unitary cover with a spine and two endpapers,
- wherein in the spine a U-shaped profile from heat-conductive material is applied, with the U-shaped profile comprising a base and upright arms and wherein in the U-shaped profile a binding adhesive is applied in a form of a hotmelt adhesive,
- wherein the U-shaped profile is applied in the spine by an assembly adhesive between the upright arms of the U-shaped profile and the spine of the cover,
- wherein the assembly adhesive extends beyond free edges of the upright arms and over the free edges, wherein the assembly adhesive is a non-reactivatable glue.
A method to produce a binding folder, the method comprising:
- providing a flat continuous unitary cover with a spine and two endpapers;
- applying of an assembly adhesive on an inside of the cover in a form of two or more strips extending at a distance from one another and parallel or approximately parallel to each other in the spine of the cover;
- placing of a U-shaped profile of heat-conductive material in the spine of the cover, with the U-shaped profile comprising a base and upright arms and in the U-shaped profile a binding adhesive in a form of a hotmelt adhesive is applied;
- folding up of the endpapers of the cover such that the spine of the cover is folded around and against the U-shaped profile;
- wherein an amount of the assembly adhesive that is applied on the inside of the cover is chosen such that after folding the cover, the assembly adhesive extends beyond free edges of the upright arms and over the free edges.
Dependencies are inferred from the claim text.