BACKGROUND OF PAPER SACKS MANUFACTURING
1. PRODUCTION OF MULTIPLE-COATED GLUED PAPER PIPES (WORKPIECES FOR PAPER SACKS).
They are produced by lines UBТ-3000 or UBТ-3000(1). Rollings are placed on the working machine by means of PPМ-3E. Paper pipes are produced by length and cross gluing. There is a perforation track for valve sacks (segmental or throughout the length with interlayer moving). There are length cuts on the workpieces for the bottom gluing. Overprinting is produced by side-table flexographic machine PFМ or by feed roll-type press flexographic machine RPFМ (higher-precision of colour registration, increased width of coverage, possibility of full-colour printing). Flexographic machine PFМ has the same drive as UBТ-3000, actually printing is laid on while the workpieces are producing. Printing by the feed roll-type press flexographic machine RPFМ is produced “from roll into roll”, afterwards the printed rolling is placed onto UBТ-3000(1) and the workpieces are produced.
2. PRODUCTION OF CELLULOSIC STRIP FOR COVER CLOTHES AND VALVES.
It is produced by working machine МКL-19R(А). It cuts the cellulosic strips of different width and depends on the width of the paper sack bottom, if it’s necessary we can overprint the strip by flexographic machine PFМE-2. МКL-19R(А) also cut strips for producing paper valves.
3. PRODUCTION OF PAPER VALVES FOR VALVE SACKS.
While gluing the sacks by UСD-6М single valves are produced by UBК-2 and slide valves by UBК-3. While gluing the sacks by UСD-2000 valves are produced by valve unit UСD-2000 during the automatical process of forming and gluing the bottom.
4. FORMING AND GLUING THE BOTTOM OF PAPER SACK.
It is produced by line UСD-2000 or by working machine UСD-6М. Gluing the bottom and the valve is the heaviest work in paper sacks production and is equal to 60-80% cost of work. Line UСD-2000 renders possible to cut down the production expenses. It is useful to produce 20 000 or more units of one type and size by it. Working machine UСD-6М renders possible to produce small-scale pressrun, increasing the number of customers and preserving a large variety of output product.
5. PACKING AND MARKING OF PAPER SACKS.
Paper sacks bundling is made by PКМ-10. Then the bales are marked and stored.
* For making the cold water soluble glue is used RК-100.
Our specialists will answer all your questions connected with the manufacture organization and recommend you the optimal equipment batching by reference to the territorial conditions of paper sacks market, the job market in your region, the characteristics of your production and distribution facilities and so on.