Tissue World Magazine
 

 
Technical Showcase

Jarshire/Impact Air JV solution for SCA Prudhoe

Along with a number of other extraction equipment companies, Jarshire Limited, in conjunction with its joint venture partner Impact Air, was invited by SCA to design a waste extraction system to provide for the clean and efficient removal of cookies - the waste offcuts created in the production of toilet rolls. The requirement was to provide auto extraction of the cookie waste, deliver it to a central waste collection installation in order to free-up space in the converting area, improve production efficiency and reduce the volume of fork-lift traffic. Historically cookie waste was accumulated in the 13 log saw areas and then trucked some 150 metres to the central baling area.

In the new turnkey system, extraction hoppers are located adjacent to each of the 13 converting lines/log saws and resulting cookies are automatically extracted via a 137 kW fan and Jarshire/Impact separator/rotary valve assembly. The waste is then conveyed directly to a toilet tissue bale press, which is also used to process toilet tissue slab and core waste fed via an inclined conveyor. Reverse jet filter units clean conveying air before returning it to the production area and the dust waste is recycled into compact, high calorific briquettes. A second and adjacent bale press processes kitchen tissue waste whilst, at the same time, providing standby facility for the main toilet tissue system.

The system is fully acoustically treated and not only provides effective extraction of production waste to a central area, but also converts all the waste into a totally recyclable format.

The Jarshire and Impact Air collaboration enables the design of complete waste extraction systems from the air inlet nozzles at the side of the production line to the fully automatic baling presses that provide for the complete recycling of waste material. Jarshire balers are available that can process 5-90 tons/hr of most materials.

Peter Scott, SCA project engineer Prudhoe said: "The trim removal system supplied by Jarshire in conjunction with Impact Air provided us all with some significant challenges, not least of which was the distance the system was required to pull - over 350 metres between points, not allowing for duct routing diversions. Teams from Impact Air and SCA worked together professionally to meet these challenges, culminating in a well-engineered, effective and reliable system. Jarshire / Impact will certainly be contenders in any future developments of this nature here at Prudhoe".
E-mail sales@jarshire.co.uk or web site www.jarshire.co.uk


OMET non-stop unwinder increases efficiency

A new unwinder from OMET offers a radical solution to the problem of waste in roll-change operations, the company says.

The roll change has always been one of the most important and tricky operations on napkin printing machines. Waste reduction is heavily dependent on it and success in this area contributes greatly to increased efficiency of the machine itself.

To go the heart of this problem, OMET has patented a special non-stop unwinder, which eliminates machine stops and thus reduces roll waste occurring when slowing down the machine to carry out the roll-change operation and its subsequent re-start once the operation has been completed.

The new unit from OMET, which will be available in the version to process two-ply paper and tissue, offers a range of important features.

Its overall dimensions are namely slightly higher than the normal unwinding unit of a napkin machine. This will allow its installation without problems on existing lines.

Currently available for napkin folders, the new unit will soon also be available for two-ply paper and tissue.


Cargill HemiForce™ enhanced fibre additives

Cargill has announced it is launching the HemiForce™ line of enhanced fibre additives, designed to increase the strength of tissue products while lowering manufacturing costs. Sourced from renewable agricultural seed fibres and made using a totally chlorine-free (TCF) process, the product line presents an alternative to chemicals for achieving the paper properties so valued by consumers.

"The HemiForce line of enhanced fibre additives provides a significant increase in strength, allowing for improved paper machine performance during production, and therefore reduced manufacturing costs," said Bill Boyden, manager of the new product line. "Papermakers now can run manufacturing lines at higher speeds without worrying about downtime. They can use less expensive grades of pulp or increase filler loading and still maintain quality specifications."

The name HemiForce enhanced fibre additives comes from the high hemicellulose composition of the product, which improves fibre-to-fibre bonding. This may enhance the strength of the paper sheet and may provide a tool for papermakers to optimize raw material selection, improve paper machine productivity, minimize refining requirements, reduce wet end chemical usage and lower overall manufacturing costs. A reduction in refining may add additional benefits for increased bulk and improved softness in tissue grades. Cargill conducted a number of customer trials over a wide range of paper grades before deciding to build a manufacturing facility in Cedar Rapids, Iowa. Production is expected to start in November.


Prodec case packer

Prodec has developed what it calls "a new generation of automatic case packers" for tissue products. The new generation has been developed to provide fully-automated solutions for a wide range of case packing operations. The new units incorporate the following features: easy changeover with the substitution of fixed-size parts by adjustable parts; speed in the movements with the application of servodriven mechanisms.

The main criteria in design are performance, reliability and cost efficiency. Construction provides for good accessibility and fast and simple changeover, while the unit has compact overall dimensions and adaptability to accept new applications in the future.

Prodec specializes in end-of-line packaging machinery: casepackers and cartoning machines.


Polytype Switzerland - new drying technology

Polytype Converting AG presents its new polyDry SpeedMax which, it says, is "today's fastest and most powerful support roll dryer in the converting industry".

The conceptual advantages of support roll dryers are useful for fast and wide machines as well. The new developed model SpeedMax completes the well proven Polytype dryer range of support roll dryers in the high end field. With the operation of up to 6m long dryer sections a very competitive price-performance ratio is achieved for the new compact support roll dryer also for fast and wide high performance drying applications. The new dryer is built with hollow support rolls. Key features of the new units include: individually exchangeable nozzles; fans with direct drive without belts; several heating media available; easily exchangeable recirculating air filter; production speed up to 1200 m/min; temperature range up to 250°C.

Major advantages include easy access to all nozzles (sections open parallel) and to the various internal air ducts (doors on front and back side). These are very important features for silicon coating lines where cleaning is a big concern.

The support rolls with its precisely controlled drive system assure a flawless web guidance of the thinnest substrates in all production situations and allow line fast stops without web breaks and uncontrolled run out of the support rolls.

The integrated air handling and recirculating system build is very compact and therefore reduces the number of air ducts and loss of energy. This compact design results in short heat up and cool down times.

The unit maintains very low surface temperature on the external dryer walls due to minimal thermal bridges and optimal insulation.
For further information please see under www.polytype.com.


Primera high-resolution bar code label printer

Primera Technology Inchas introduced the LX200 Label Printer. This unit uses the latest in monochrome high-speed inkjet printing technology. With 1200 dpi print resolution, the printer has almost six times as many dots per inch as most thermal transfer bar code printers. It prints onto labels, tickets, tags and coupons for a wide range of applications, including those in which higher levels of security, confidentiality and durability are required. Unlike thermal transfer printers, LX200 uses an inkjet print head instead of ribbons. Thermal transfer ribbons leave behind a record of everything that has been printed. In many applications such as healthcare or government, secure collection and disposal of ribbons is required in order to meet confidentiality and secrecy requirements. Inkjet printing doesn't have this challenge and thus can be a far more secure, convenient and cost-effective solution. LX200 is shipped with label creation layout software called NiceLabe® SE for Primera. All popular bar codes are supported, including linear and, optionally, 2D bar codes such as PDF417. Fonts as small as 2 points are highly legible and perfectly formed.
More information: www.primera.com or Email sales@primera.com.