Process of making book covers
OwnerRobert G. Bexley, Barry South Thomsoninventors
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Abstract
A book cover making process feeds transparent polymer sheet material from a roll of material across a plurality of roller cutting blades for making cuts a portion of the way through the material. The polymer sheet material being fed is coated with adhesive in two space coats on either side of the cut lines on the opposite side of the sheet from the cut lines. The coated adhesive is covered with backing material and the polymer sheet material is then cut into predetermined sizes to form book covers. The coating and backing may be done in one operation and rewound onto a roll and fed from the rewound roll for cutting to size and then have a plurality of lines cut into the individual polymer sheets.
Claims4
A process of making a backing cover including the steps of:
- feeding polymer sheet material from a roll of polymer sheet material;
- coating adhesive onto one side of polymer sheet being fed from a roll of polymer material into spaced coats;
- applying sheet backing material to each of said adhesive coats from a pair of rolled sheet backing material;
- rewinding said polymer material having said covered adhesive thereon backwards onto a roll;
- feeding said rewound polymer material from said roll;
- cutting and discharging sheets from said polymer sheet and covered adhesive thereon;
- and
- cutting a plurality of lines a portion of the way through polymer sheet, including cutting lines from five to seven mils into said polymer sheet material.
Dependencies are inferred from the claim text.