The Skiver Line Process: Increase profitability in one step
The Skiver Line allows paper manufacturers and corrugated box producers to increase their profitability by utilizing the narrow paper rolls which result from the paper manufacturing and slitting process at the paper plant.
The Skiver Line is a one-step process which joins two narrow rolls to form a full width paper roll which can then be converted into corrugated sheets without any adverse effect to the performance of the finished box.
Utilization of narrow reels ensures that paper producers can eliminate the costs associated with recycling narrow paper rolls which can not be sold. Similarly, corrugated box producers can reduce the cost of production by taking advantage of the price discount associated with narrow rolls which can not be run on a standard corrugator.
Maximum flexibility. Maximum benefit.
- Applicable for standard paper grades
- Asymmetrical input roll capability
- Multi-diameter input roll capability
SKIVER LINE PROCESS OVERVIEW
Central to the Skiver Line process is the center splice function which joins the two paper webs and converts the narrow rolls into a full width roll. The first step in creating the center splice is to grind the two corresponding paper edges to form an accurate chamfer profile. Glue is then applied to one paper edge and the two paper webs are constantly guided together to ensure an accurate and consistent center splice which has constant thickness.
Guiding systems guide the paper webs into the two grinding systems to ensure consistent positioning of the two chamfers required for the center splice.
One grinding system per paper web creates the chamfer profile on the corresponding edge and surface. Control of the chamfer profile is of upmost importance to ensure a high-quality center splice with constant thickness.
GLUE APPLICATION SYSTEM
The cold-set glue applicator is located at the center splice point. Minimal amount of glue is applied to the chamfered edge of one narrow paper web.
PROFIT FROM THE PROCESS
Optimum machine efficiency is ensured by the inclusion of automatic splicing systems within the unwind section. The Process Section can be regarded as the heart of the Skiver Line due to the fact that this is where the center splice function takes place. The rewind section features a two-drum surface rewinder to ensure optimum rewind quality and ensuing maximum unwinding performance on the corrugator.
In order to keep production costs at an absolute minimum, the Skiver Line has been designed to be able to be run by only two operators. The robustness and reliability of the Skiver Line is synonymous with all E+L products, allowing the Skiver Line to be utilized 24/7 with minimal scheduled maintenance.
Two roll stands and two splicers are used to ensure optimum machine efficiency and provide maximum flexibility with regards to the widths and diameter of the narrow rolls to be joined.
In addition to the various key systems required for the centre splice function, the process section also includes the tension measurement systems which ensure that the paper tensions within the Skiver Line process are controlled correctly.
A two-drum surface rewinder system produces a standard full width paper roll. A kick-out mechanism moves the roll to the adjacent J-table and lowers it to the floor.
SKIVER LINE OPTIONS
The functionality of the Skiver Line can be increased by a number of value added options which can be included at the time of build or supplied as a retro-fit. Further options are available to increase the visualization of the Skiver Line process and key performance data.
The ELCLEAN System removes residual dust created by the Skiver Line process and the paper manufacturing process. Top and bottom vacuum cleaning heads ensure that both surfaces are cleaned.
EDGE TRIMMING SYSTEM
The edge trimming system ensures a constant paper width resulting in the finished full width roll having a high-quality side wall profile.
VIDEO DISPLAY SYSTEM
Various process points within the Skiver Line can be monitored by cameras and displayed on a large screen at the operator control station.
FULL WIDTH PAPER CAPABILITY
Full width paper can be run through the Skiver Line, bypassing the processes used to create the center splice. This option can be used to splice multiple short rolls into one large roll.
PRODUCTION DISPLAY SCREEN
A 95´´ screen display can be included to display the current job and Skiver Line performance data.
A customer supplied coater/printer can be integrated, allowing the coating of full width paper. This could replace a dedicated coating/printing line.